READING & BATES CORP
10-K, 1997-03-21
DRILLING OIL & GAS WELLS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                                  
                                  FORM 10-K
   (Mark One)
     _X_     ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) 
             OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED]
             For the fiscal year ended December 31, 1996
                                OR
     ___     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
             OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED]
             For the transition period from ___________ to ___________.

                            Commission File No. 1-5587

                            READING & BATES CORPORATION
              (Exact name of registrant as specified in its charter)

              Delaware                                73-0642271
      (State or other jurisdiction                 (I.R.S. Employer
      of incorporation or organization)            Identification No.)


           901 Threadneedle, Suite 200, Houston, TX           77079
          (Address of principal executive offices)         (Zip Code)

      Registrant's telephone number, including area code   281-496-5000

          SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:
                                                                
                                                Name of Each Exchange
     Title of Each Class                        on Which Registered
     -------------------                        ---------------------
    Common Stock, $.05 par value                New York Stock Exchange
                                                Pacific Stock Exchange

    Preferred Share Purchase Rights             New York Stock Exchange
                                                Pacific Stock Exchange

      SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: None

        Indicate  by check  mark whether the  registrant (1)  has filed all
   reports  required  to be filed by Section 13 or 15(d) of  the Securities
   Exchange Act of 1934 during the preceding 12 months (or for such shorter
   period that the registrant was required to file such  reports), and  (2)
   has been subject to such filing requirements for the past 90 days.
   Yes _X_  No___  

        Indicate by check mark if disclosure of delinquent filers  pursuant
   to Item  405 of Regulation S-K is  not contained herein, and will not be
   contained, to the best  of registrant's  knowledge, in  definitive proxy
   or information statements incorporated by reference in Part  III of this
   Form 10-K or any amendment to this Form 10-K. [  ] 

             AGGREGATE MARKET VALUE OF THE VOTING STOCK HELD BY
             NONAFFILIATES ON FEBRUARY 28, 1997 - $1,705,026,327

                 NUMBER OF SHARES OF COMMON STOCK OUTSTANDING
                      ON FEBRUARY 28, 1997 - 72,044,517

                     DOCUMENTS INCORPORATED BY REFERENCE
     1)  Proxy Statement for Annual Meeting of Stockholders to be held on
         May 13, 1997 - Part III

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                         TABLE OF CONTENTS
                                                                 
                              PART I

   Item 1.  Business   . . . . . . . . . . . . . . . . . . . . . . . . .
   Item 2.  Properties   . . . . . . . . . . . . . . . . . . . . . . . .
   Item 3.  Legal Proceedings  . . . . . . . . . . . . . . . . . . . . .   
   Item 4.  Submission of Matters to a Vote of Security Holders  . . . .  

                              PART II

   Item 5.  Market for the Registrant's Common Stock and
              Related Stockholder Matters  . . . . . . . . . . . . . . .  
   Item 6.  Selected Financial Data  . . . . . . . . . . . . . . . . . .   
   Item 7.  Management's Discussion and Analysis of Financial 
              Condition and Results of Operations    . . . . . . . . . .  
   Item 8.  Financial Statements and Supplementary Data  . . . . . . . .   
   Item 9.  Changes in and Disagreements with Accountants on
              Accounting and Financial Disclosure  . . . . . . . . . . .  

                             PART III

   Item 10. Directors and Executive Officers of the Registrant . . . . .  
   Item 11. Executive Compensation   . . . . . . . . . . . . . . . . . .   
   Item 12. Security Ownership of Certain Beneficial
              Owners and Management  . . . . . . . . . . . . . . . . . .  
   Item 13. Certain Relationships and Related Transactions . . . . . . .   

                              PART IV

   Item 14. Exhibits, Financial Statements and Reports on Form 8-K   . .  

   Signatures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

==============================================================================

                 READING & BATES CORPORATION AND SUBSIDIARIES
             ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                        SECURITIES EXCHANGE ACT OF 1934
                     FOR THE YEAR ENDED DECEMBER 31, 1996

                                    PART I

Item 1. Business and Item 2. Properties

Business Developments
      Reading & Bates Corporation was  incorporated in 1955 under the laws  of
the State  of Delaware.    Unless the  context otherwise  indicates, the  term
"Company" herein refers to the total business conducted by the Company and its
subsidiaries.

      The  Company provides  contract drilling  and other related  services in
major offshore  oil and gas producing  areas worldwide.  The  Company began as
one of the first offshore contract drillers in 1956, and  considers itself one
of the  most experienced  offshore  drilling contractors  in the  world.   The
Company's mobile offshore fleet currently consists of  three fourth-generation
and two  third-generation semisubmersible  drilling units, a  third-generation
deepwater    semisubmersible    support    vessel,    two    second-generation
semisubmersible  drilling units, nine  international-class 300-foot cantilever
jack-ups, two self-erecting tenders and one floating production vessel.

      The  Company's  fleet is  internationally  diversified.   Three  of  the
Company's drilling units are located in the Gulf of Mexico.  The  remainder of
the Company's  units are located in  various parts of the  world, including in
waters offshore  Angola, Australia,  Egypt, India, Indonesia,  Ireland, Italy,
the Netherlands, Nigeria, and the United Kingdom.

      The  Company  has  acquired and  sold  certain assets.    See "FINANCIAL
CONDITION" under Item 7 for discussions of  such acquisitions and sales.  

      On February  28, 1995, the  Company announced  that it  had received  an
unsolicited  merger  proposal  from   Sonat  Offshore  Drilling  Inc.  ("Sonat
Offshore") providing  for the acquisition of  100% of the common  stock of the
Company for a combination of  Sonat Offshore common stock and $100  million in
cash.  As  proposed by Sonat Offshore, the Company's  shareholders would have,
at  their election, received  either (i) .357 shares  of Sonat Offshore common
stock or (ii) $7.50 of cash for each share of the Company.  On March 16, 1995,
the Company  announced that  its board  of  directors had  rejected the  Sonat
Offshore proposal on the basis  that it was not  in the best interests of  the
Company and  its shareholders.   On April  18, 1995, Sonat  Offshore announced
that the merger  discussions had  broken off  following the  rejection by  the
Company of  Sonat Offshore's proposal.   The  Company responded  the same  day
announcing  that  discussions  with  Sonat  Offshore  had  not  to  that  date
demonstrated  a willingness  on  the  part of  Sonat  Offshore to  consider  a
transaction  that would be reflective of  the short-term or long-term business
prospects and  value of  the Company.   Subsequent  to their  announcing their
intent  to  break  off discussions  in  April 1995,  Sonat  Offshore initiated
additional  discussions   in  May  1995   with  regard  to   potential  merger
transactions.  However, these subsequent  discussions similarly did not result
in  terms that  recognized the  Company's  current or  long-term  value.   The
Company and Sonat Offshore discontinued discussions in June 1995.  

      On May  3, 1996, the  Company announced that it  had made a  proposal to
Transocean  Offshore ASA  ("Transocean") regarding  a combination  of the  two
companies  in a  transaction  that would  have entitled  each  of Transocean's
shareholders to receive 1.245  shares of the Company's  common stock for  each
share of Transocean common stock.  Sonat Offshore had also announced that they
had made a proposal to combine with Transocean.  On May  7, 1996, the proposal
was  revised to  entitle  each of  Transocean's shareholders  to  receive 1.28
shares  of the  Company's common  stock for  each share  of  Transocean common
stock. However, on June 4,  1996, the Company announced it was  suspending its
efforts  to pursue a  business combination with Transocean  unless it could be
done on terms that were clearly  beneficial to the Company's shareholders.  In
September 1996,  Sonat Offshore  completed a business  combination transaction
with Transocean.  The combined entity is now called Transocean Offshore Inc.

       The Company remains willing to engage in discussions regarding possible
business  combinations  that  would  potentially  strengthen  its  competitive
position  in  the  offshore   drilling  industry,  appropriately  reflect  the
underlying value of the Company and maximize shareholder value.

      In 1994, as part of the Company's strategy of geographic diversification
and increasing participation  in the fourth-generation semisubmersible  sector
of  the  offshore drilling  market,  the Company  significantly  increased its
ownership  in Arcade Drilling AS ("Drilling"),  a Norwegian company which owns
the  fourth-generation semisubmersibles  "HENRY GOODRICH"  and "PAUL  B. LOYD,
JR.".   A  1994 transaction,  which included  the Company  selling its  entire
ownership in Arcade  Shipping AS ("Shipping") and purchasing from Shipping its
entire ownership in Drilling, increased the Company's ownership in Drilling to
68.1%.  As of December 31, 1996, the Company had  acquired approximately 74.4%
of the  outstanding stock of Drilling, at an accumulated cost of approximately
$102.9 million  net of a $10.6 million distribution to the Company declared by
Drilling in the first  quarter of 1996.  See  Note B of Notes  to Consolidated
Financial Statements and "FINANCIAL CONDITION - Arcade Acquisition" under Item
7.

Mobile Offshore Unit Descriptions

      Mobile offshore drilling  units consist of a hull, positioning equipment
and drilling equipment.   The design of a drilling  unit determines the marine
environment in which it  can operate.   The drilling equipment determines  the
drilling operations  which a  drilling unit  is capable of  performing and  is
principally  comprised  of hoisting  equipment,  power  plant, fluid  handling
systems, well control apparatus and  a means of rotating the drill  string and
tubulars.   A drilling unit also  has living quarters, cranes,  a heliport and
material storage facilities.

      Although  the Company's  fleet  consists of  jack-ups, semisubmersibles,
drilling tenders, a  support vessel, and a  floating production vessel,  there
are  several other types  of units that  compete with the  Company's units for
contracts.  The major categories of units include the following:

     1.   Jack-Up  Rigs.   Jack-up  rigs are  mobile  self-elevating  drilling
          platforms  equipped with  legs which  can be  lowered  to  the ocean
          floor  until a  foundation  is established  to support  the drilling
          platform which  is then jacked  further up the  legs so  it is above
          the highest  expected waves.   The  rig hull  includes the  drilling
          rig,   jacking   system,  crew   quarters,  loading   and  unloading
          facilities, storage areas for bulk and liquid materials,  helicopter
          landing deck and other  related equipment.  The  rig legs may have a
          lower  hull  ("mat") attached  to the  bottom  of them  in order  to
          provide a more stable foundation in soft bottom  areas.  Independent
          leg rigs  are better suited for harder or  uneven seabed conditions.
          Jack-up rigs may be designed to operate in a maximum water depth  of
          approximately 400 feet  (however, most  jack-up rigs  have a  lesser
          water  depth capability).   Some  jack-up rigs  may  drill  in water
          depths  as  shallow as  ten  feet.    The water  depth  limit  of  a
          particular rig  is determined  by design limitations, the  length of
          the rig's  legs and the  operating environment.   Moving a  rig from
          one drill site  to another involves jacking  the hull down  into the
          water  until it is afloat and then jacking up its legs with the hull
          floating on the  surface of the  water.   The hull is then  towed to
          the new drilling  site by tugs and the legs are then  jacked down to
          the ocean floor.   The jacking operation continues until the hull is
          raised out of the water, preloaded with sea  water and elevated to a
          level that provides a  final air gap  above the effects of the  sea.
          Drilling operations  are then conducted with the hull  in its raised
          position.   A  cantilever jack-up  has a  feature  which  allows the
          drill  floor  to  be  extended out  from  the hull,  allowing  it to
          perform drilling or workover operations over pre-existing  platforms
          or  structures.   Certain cantilever  jack-up rigs  have  "skid-off"
          capability, which  allows the derrick  equipment set  to be  skidded
          onto  an  adjacent  platform,  thereby  increasing  the  operational
          capability of  the rig.   Slot type jack-up rigs  are configured for
          the drilling operations to  take place through  a slot in the  hull.
          Slot type rigs are  usually used for exploratory  drilling, in  that
          their configuration makes  them difficult to position over  existing
          platforms or structures.

     2.   Semisubmersible Rigs.  Semisubmersible  rigs are floating  platforms
          which, by means of  a water ballasting system, can be submerged to a
          predetermined depth so that the lower hulls, or  pontoons, are below
          the water surface  during drilling operations.   The  rig is  "semi-
          submerged", remaining afloat, in a position in which  the lower hull
          is  about  60-80  feet  below the  water  line  and the  upper  deck
          protrudes  well above the  surface.   The upper deck  is attached to
          the pontoons by columns.   These rigs maintain  their position  over
          the  well through  the  use  of  an  anchoring  system  or  computer
          controlled thruster  system.  They  have lower wave-induced  motions
          than  other types of floating units because of their geometry at the
          water  line.   Some semisubmersible  rigs are  designed  to  work in
          water depths  up to 6,000  feet.   Some are self-propelled  and move
          between  locations  under  their   own  power  when  afloat  on  the
          pontoons; however, most semisubmersible rigs are relocated with  the
          assistance  of tugs.   Some   semisubmersible  rigs  are  capable of
          operating in the "submersible" mode, sitting on the  bottom in water
          depths of approximately 40 to 50 feet. 

     3.   Submersible  Rigs.    Submersible  rigs  are  somewhat  similar   in
          configuration to  semisubmersible rigs,  but the lower  hull of  the
          rig  rests  on  the  sea  floor  during  drilling   operations.    A
          submersible rig is towed  to the well site  where it is submerged by
          flooding its lower  hull until it rests on  the sea floor, with  the
          upper hull  above  the  water surface.    After  completion  of  the
          drilling operations, the rig  is refloated by pumping  water out  of
          the lower  hull and it  is towed to  another location.   Submersible
          rigs typically  operate in water  depths of 12 to  70 feet, although
          some submersible rigs are capable of operating at greater depths.

     4.   Self-Contained Platform  Rigs.   Platform rigs  consist of  drilling
          equipment,  power  generation machinery  and  quarters  arranged  in
          modular  packages which  are  transported to  and  assembled,  using
          derrick  barges,  on  fixed  offshore  platforms  provided  by   the
          customer.    Upon  completion of  drilling  operations,  the rig  is
          disassembled  and moved  to  another  location.   Platform rigs  are
          typically  used for  development drilling  and  workover operations.
          Fixed  offshore  platforms  are  steel tower-like  structures  which
          stand on the sea  floor, with the top  portion, or deck, being above
          the water  level  and  providing the  site  for  the  platform  rig. 
          Platform rigs are  dependent on the availability of derrick  barges,
          or other lifting assistance, and transport barges.

     5.   Drilling Tenders.   Drilling tenders are usually  non-self-propelled
          barges or  semisubmersibles which  are moored  alongside a  platform
          and  contain the  quarters, mud  pits, mud pumps,  power generation,
          etc.   Thus,  the  only equipment  on the  platform  is the  derrick
          equipment  set consisting  of the substructure,  drillfloor, derrick
          and  drawworks.    Drilling  tenders  allow  smaller,  less   costly
          platforms  to  be used  for  development  projects.    Self-erecting
          tenders  carry their  own derrick  equipment set  and  have  a crane
          capable of  erecting it  on  the platform,  thereby eliminating  the
          cost  associated   with  a  separate   derrick  barge  and   related
          equipment.   Older tenders  frequently require the  assistance of  a
          derrick barge to erect the derrick equipment set.

     6.   Drillships.   Drillships  are ships  equipped  for drilling  and are
          typically  self-propelled and  move  from one  location  to  another
          under their  own power.   Drillships  are positioned  over the  well
          through use  of either  an anchoring  system or computer  controlled
          thruster  system similar  to  those used  on  semisubmersible  rigs.
          Certain drillships  are capable of drilling in water  depths of more
          than 6,000  feet.   Drillships normally  require water  depth of  at
          least 200 feet in order to conduct operations.

     7.   Support Vessels.   Support vessels  are monohull or  semisubmersible
          type  vessels   that  provide services  to  offshore  drilling rigs,
          platforms or  other vessels in drilling  and field installation  and
          development operations.   These types  of offshore support  services
          include,  but  are   not  limited  to,  emergency  support,   diving
          operations,    Remote    Operating    Vehicle    (ROV)   operations,
          accommodation,  subsea   well  workover   operations,  subsea   well
          abandonments, subsea  construction support  and subsea  inspections.
          These vessels  can operate in various water depths  and are normally
          self-propelled, dynamically positioned through  the use of  computer
          controlled  thrusters and  are  outfitted with  a  large  crane lift
          capacity. 

     8.   Floating  Production  Vessels.    Floating  production  vessels  are
          equipped  for  oil production,  processing  and  storage.   The  oil
          produced is  discharged either to tankers by means  of an offloading
          facility  on the  vessel as  on a  floating  production  storage and
          offloading  (FPSO)  vessel or  the  vessel is  deployed  to  a shore
          terminal  for  discharge as  on  a  floating production  storage and
          shuttle (FPSS)  vessel.   These vessels hold  their position through
          the  use  of either  a  computer controlled  thruster  system  or an
          anchoring  system and  can operate  in various  water  depths.   The
          moored vessels may be  spread moored or be  equipped with a  mooring
          turret, depending on the environmental conditions.

      There  are several factors that determine  the type of offshore drilling
unit most  suitable for performing a  particular drilling contract.   The most
significant  factors  are  the marine  environment  and water  depth.   Seabed
conditions at the  proposed drilling location, whether  the drilling is  being
done  over a platform  or other structure,  the intended  well depth, variable
load requirements and well control equipment requirements (i.e. high  pressure
and high  temperature wells) are  other important factors.   Thus, the  market
tends  to be segmented and considerable  variation in utilization and dayrates
often  exists for  various drilling units  as a  function of  demand for their
capabilities.  

The Company's Fleet

      At March 1, 1997, all of the Company's twenty mobile offshore units were
operating or committed under contract.  Eight of the contracts expire prior to
the  end of  1997 with twelve  contracts extending  past 1997.   The Company's
fleet currently  operates pursuant  to contracts having  anticipated durations
from less than one year to up to  three years.  The number of units working at
any given date can fluctuate considerably.  No representation can be made with
respect  to  the  continuance of  current  utilization rates,  or  the length,
conditions or terms of any new contracts or commitments.

      The following table sets  forth the types  of equipment operated by  the
Company and the locations and status of such equipment as of  March 1, 1997.

                             MOBILE OFFSHORE UNITS
   
                                 Water     Drilling
                       Year      Depth      Depth
Type and Name      Constructed Capability Capability   Location    Status
                                (expressed in feet)
Fourth-Generation
  Semisubmersibles
 JACK BATES (1)        1986      4,000     30,000   United Kingdom  Committed
 HENRY GOODRICH (2)    1985      2,000     30,000   United Kingdom  Operating
 PAUL B. LOYD, JR. (2) 1987      2,000     25,000   United Kingdom  Operating

Third-Generation
  Semisubmersibles
 JIM CUNNINGHAM (3)    1982      4,600     25,000   Angola          Operating
 M. G. HULME, JR. (4)  1983      3,300     25,000   Gulf of Mexico  Operating
 IOLAIR (5)            1982      2,000          -   United Kingdom  Operating

Second-Generation
  Semisubmersibles
 RIG 41(1)(6)          1976        660     25,000   Gulf of Mexico  Committed
 J. W. McLEAN (1)(7)   1974      1,500     25,000   Ireland         Committed

Jack-Ups
 F. G. McCLINTOCK
   (1)(8)              1975        300     25,000   Netherlands     Operating
 RON TAPPMEYER (1)     1978        300     25,000   Australia       Operating
 C. E. THORNTON (8)    1974        300     25,000   Nigeria         Operating
 RANDOLPH YOST (1)     1979        300     25,000   Nigeria         Operating
 D. R. STEWART (1)     1980        300     25,000   Italy           Operating
 HARVEY H. WARD (1)    1981        300     25,000   India           Operating
 ROGER W. MOWELL (1)   1982        300     25,000   Italy           Operating
 J. T. ANGEL (1)       1982        300     25,000   India           Operating
 GEORGE H. GALLOWAY
   (1)(8)              1985        300     25,000   Gulf of Mexico  Operating

Drilling Tenders
 CHARLEY GRAVES (1)    1975        400     20,000   Egypt           Committed
 W. D. KENT (1)        1977        400     20,000   Indonesia       Operating

Floating Production
  Vessel
 SEILLEAN (9)          1990        650          -   United Kingdom  Operating

- -------------------------------

(1)   Subject to  a first preferred mortgage  in favor of Christiania  Bank og
      Kreditkasse.  See Note C of Notes  to Consolidated Financial Statements.
      The "JACK BATES" is scheduled to be upgraded to operate in 4,500 feet of
      water in the second quarter of 1997. 

(2)   Unit is owned by Drilling  and subject to a first preferred  mortgage in
      favor  of  The Chase Manhattan Bank, N.A.  In  February 1996, the "SONAT
      ARCADE FRONTIER" was renamed  the "PAUL B. LOYD,  JR.".  See Notes B and
      C of Notes to Consolidated Financial Statements.

(3)   Subject to  a preferred mortgage in favor  of Deep Sea Investors, L.L.C.
      Such mortgage  is additional collateral relating  to the sale/lease-back
      of the "M.  G. HULME, JR." (see  Note (4) below).   The "JIM CUNNINGHAM"
      was upgraded to operate in 4,600 feet of water in 1996.

(4)   The  "M. G. HULME,  JR." is  accounted for  as an  operating lease  as a
      result of the  sale/lease-back in November 1995.  The  drilling unit was
      upgraded to operate in  3,300 feet of water in 1996  and is scheduled to
      be upgraded to operate  in 4,000 feet of water in mid 1997.   See Note E
      of Notes to Consolidated Financial Statements.

(5)   In   September  1995,   the  Company   purchased  the   third-generation
      semisubmersible vessel "IOLAIR".   The  "IOLAIR" is  designed for  field
      support and living accommodations and is expected to be upgraded in 1998
      to include a derrick floor and ancillary workover equipment.  Subject to
      a first  priority mortgage in favor of  BP Exploration Operating Company
      Limited.  See Note C of Notes to Consolidated Financial Statements.

(6)   The  second-generation semisubmersible  "RIG  41" was  purchased by  the
      Company in  September 1994  and  the drilling  unit is  currently  being
      upgraded  to operate  under certain conditions  in 3,300  feet of water.
      Upon completion of the upgrade, estimated to be at the end  of the third
      quarter of 1997, "RIG 41" will commence a one year contract with Enserch
      Exploration, Inc.

(7)   In  September   1995,  the   Company  purchased   the  second-generation
      semisubmersible drilling  unit "J. W. McLEAN".  Following major upgrades
      in  1996 and  early 1997, the  "J. W.  McLEAN" will  commence a nineteen
      month drilling contract with Statoil.

(8)   In the third  quarter of 1994,  the Company purchased certain  notes and
      interests relating  to the lease  debt outstanding  associated with  the
      operating leases of  the "GEORGE H.  GALLOWAY" and "C.E.  THORNTON", and
      the secured contingent  obligations associated with the capital lease of
      the "F.G.  McCLINTOCK".   The Company  now has title  to the  "GEORGE H.
      GALLOWAY" and "F. G. McCLINTOCK".   See Note E of Notes  to Consolidated
      Financial Statements.

(9)   In September 1996, the Company purchased the floating production storage
      and shuttle  (FPSS) vessel, the  "SEILLEAN".   The vessel was  built for
      extended well testing, early production and life of field production and
      is currently working  in the U.K. sector  of the North Sea.   The vessel
      will  remain under its current  operational contract on  a life of field
      basis after which time the vessel can continue to be used in its current
      configuration or it can be modified to a floating production storage and
      offloading  (FPSO)  vessel  or  converted to  a  dynamically  positioned
      drillship.

      All of the Company's  drilling units have top drive units which increase
their marketability and  dayrates.  A top drive unit is  a drilling tool which
allows  drilling with  90-foot  lengths  of  drill pipe  rather  than  30-foot
lengths, thus  reducing the number  of connections.    A  top drive unit  also
permits rotation  of the drill string  while tripping in and out  of the hole.
These characteristics increase  drilling speed and  efficiency and reduce  the
risk  of the  drill string sticking  during operations,  especially during the 
drilling of highly  deviated directional wells which are common in development
drilling operations.

      The  Company's  active semisubmersible  drilling  units  are capable  of
drilling  to depths  of 25,000  feet to  30,000 feet  in maximum  water depths
ranging from 1,500 feet to 4,600 feet.   The "JACK BATES", the "PAUL B.  LOYD,
JR." and the "HENRY GOODRICH" are among the most technically advanced "fourth-
generation" semisubmersible drilling units in existence.  Semisubmersibles are
frequently  classified   into  four   generations,  based  primarily   on  rig
capabilities.    The  fourth-generation  classification  generally  refers  to
semisubmersibles  that have  been built  since 1984,  and have  large physical
size,  harsh environment  capability,  high variable  loads, top  drive units,
15,000 psi blowout  preventers and superior motion characteristics.  There are
currently  13 fourth-generation  semisubmersibles worldwide.   These  drilling
units are the best choice for operators in deepwater and/or harsh environments
or for  drilling that requires larger variable loads and the ability to handle
large pieces of subsea equipment.  There are limited markets for this type  of
drilling unit  and a relatively small  group of users.   The principal markets
are  the  North Sea/Norway,  the Gulf  of Mexico,  the  Far East  and offshore
Brazil.

      The "JACK BATES" was built in 1986.  This drilling unit was designed for
moored  drilling  operations, with  the  assistance  of a  computer-controlled
thruster system, in up to 7,500  feet of water and is currently  outfitted for
operations  in  up to  4,000  feet of  water.   This  drilling  unit was  also
specifically  designed for operations in harsh  marine environments.  Its low-
heave  motion response characteristics reduce the  effects of wave motions and
thus reduce downtime in harsh  environments.  Other features of this  unit are
its  mechanized  drilling  and  handling  systems,   its  mooring  system  and
equipment, its payload capabilities and its engineering design characteristics
that  facilitate upgrades in  water depth capabilities  at significantly lower
expense relative to other  semisubmersibles.  The "JACK BATES" has  a variable
load capacity of approximately 6,000 tons.  In February 1997, the "JACK BATES"
sustained  substantial   damage  when   it  struck  an   uncharted  underwater
obstruction while under tow into the port of Brindisi, Italy, resulting in the
loss of  the forward port thruster  and damages to the  aft starboard thruster
and underside of the pontoons.    The unit  had recently completed a  drilling
contract offshore  Albania  and  was  being towed  to  Brindisi  to  discharge
equipment  in  preparation  for continuing  its  mobilization to  a  North Sea
shipyard for  planned upgrades to the unit prior to commencing a fifteen month
contract in  the North  Sea  area.    Preparations  are  underway to  complete
temporary repairs to enable  the unit to be towed to a  North Sea shipyard for
the planned upgrade and completion of permanent repairs.  The Company believes
the physical  damage and any  business interruption sustained  as a  result of
this incident are adequately covered by insurance.

      The "PAUL B. LOYD, JR." is one of the most modern dynamically-positioned
drilling units in  existence and is also equipped with  a conventional mooring
system, enabling it to perform a wide range of drilling assignments.  Built in
1987,  this  drilling unit  has  a 4,000  ton  variable load  capacity  and is
currently capable  of drilling  high-pressure wells  in  up to  2,000 feet  of
water,  but can be upgraded to operate in depths of up to 6,000 feet of water.
The "PAUL B. LOYD, JR." started its first contract in 1991  with Conoco (U.K.)
Ltd. in the North  Sea and is certified to  operate in both the  Norwegian and
the U.K. sectors  of the North Sea.  In 1991, the drilling unit also completed
operations in the  Barents Sea for Conoco Norway and Esso  Norge AS, for which
it  was specially  outfitted  for  temperatures as  low  as minus  25  degrees
Celsius.  The drilling  unit is currently operating under a long-term contract
for British Petroleum offshore the U.K. 

      The "HENRY GOODRICH" has a  6,800 ton variable load capacity and  can be
upgraded  to operate in depths of  up to 10,000 feet of  water, although it is
currently outfitted for  drilling high-pressure, deep wells in water depths of
up to  2,000 feet.   Built  in 1985,  this  drilling unit  is one  of the  few
drilling units capable of drilling under arctic conditions.  The drilling unit
has  a conventional  mooring  system  and  is designed  to  accept  a  dynamic
positioning system.  The "HENRY GOODRICH" is certified to operate offshore the
U.K.  and is  currently operating  under a  long-term contract for  Shell U.K.
Limited in the U.K. sector of the North Sea. 

      Pursuant  to  an  agreement  dated  August  31,  1991  (the  "Standstill
Agreement") with  Transocean Offshore Inc.  (as successor to  Sonat Offshore),
which  owns approximately 25%  of the stock  of Drilling, the  Company and its
affiliates  are  subject  to  certain  restrictions  on  engaging  in  various
transactions  with  Drilling,  including  transactions  with  respect  to  the
drilling units  owned by Drilling and  the stock of Drilling  (unless, in some
cases,  the terms are no less favorable  to Drilling or to Transocean Offshore
Inc.  than  similar  transactions with  an  unaffiliated third  party).   Such
restrictions  continue (so  far as  the Company's  obligations are  concerned)
until the earliest of (i) the date when the Company no longer owns  the 46% of
Drilling stock previously owned by Shipping, (ii)  September 1, 1998, or (iii)
the date  when Transocean Offshore  Inc. owns  less than 5%  of Drilling  (the
"Standstill Period").

      The  Standstill Agreement  further provided  that during  the Standstill
Period  the  Company  could  not  permit Drilling  to    early  terminate  the
management agreement  pursuant to which  Transocean Offshore Inc.  managed the
"HENRY  GOODRICH" and the  "PAUL B. LOYD,  JR." for a  variable management fee
from Drilling.   Transocean Offshore Inc.'s management agreement for the "PAUL
B. LOYD, JR." expired in December  1995 and the modified management  agreement
for the  "HENRY GOODRICH" ended in October 1996.   A subsidiary of the Company
now manages both of the drilling units.  

      The  Company's jack-up drilling units are  capable of drilling to depths
of 25,000  feet in water depths ranging between 10  and 300 feet, depending on
the drilling unit.  All of the Company's jack-ups are independent leg drilling
units and  have the cantilever  feature, which  allows the drill  floor to  be
extended out from the hull of the drilling  unit, facilitating operations over
existing structures such as well platforms.  

      The  Company's  two  drilling  tenders  are  specialized   self-erecting
drilling tenders.  These units are  equipped with a large crane which provides
the capability of  erecting their derrick equipment sets on offshore platforms
without  the need for separate crane barges  or associated equipment.  Both of
these units are capable of drilling to depths of 20,000 feet.

      The Company's floating production storage and shuttle (FPSS) vessel, the
"SEILLEAN", was designed  for extended well testing, early production and life
of  field production.   This dynamically positioned vessel  has an oil storage
capacity  of  approximately 310,000  barrels  and process  capacity  of 20,000
barrels of oil per day.  It  is currently contracted on a life of field  basis
after  which  time  the  vessel  can  continue  to  be  used  in  its  current
configuration  or it  can be  modified to  a floating  production storage  and
offloading (FPSO) vessel or converted to a dynamically positioned drillship.

      The Company follows  a policy of keeping  its equipment well  maintained
and  technologically  competitive.    However,  its  equipment  could  be made
obsolete by  the development of  new techniques and  equipment.  In  addition,
industry-wide shortages of supplies, services, skilled personnel and equipment
necessary to  conduct the Company's  business have  occurred in the  past, and
such shortages could occur again. 

Utilization Statistics

      Published industry statistics of unit utilization include data  based on
both the "contract  method", which measures the number of  days under contract
(whether or  not earning revenues) compared  to the total days  the units were
available for service, and the  "operating method", which measures utilization
in terms  of the number of  days the units  are earning revenues to  the total
days the  units  are  available  for service.    Consequently,  the  available
industry data set forth below may  not be directly comparable to the Company's
data calculated based  on the operating method, the more conservative measure.
The following  table sets forth  certain data  regarding unit utilization  and
average  total  units  available for  the  industry and  the  Company's fleet.
Industry data is based upon  all operational units of the types  indicated for
the  periods indicated  and includes  many units  that are  dissimilar  to the
Company's  units in  many respects,  including performance  capabilities, age,
operational criteria  and  environmental capabilities.   The  decrease in  the
Company's jack-ups in 1995 reflects the early termination of the leased "SONNY
VOSS" in the latter part of 1994 and the decrease in 1996 reflects the sale of
the  "D.  K.  McINTOSH"  in  April  1996.    The  increase  in  the  Company's
semisubmersibles in  1995 reflects the  purchase of  the "IOLAIR" and  in 1996
reflects the "J. W. McLEAN" which was  purchased in September 1995 but was not
placed in  service until 1996.  The addition of the floating production vessel
represents the purchase of the "SEILLEAN" in September 1996.

                                                  Averages for
                                            Years Ended December 31,  
                                        --------------------------------
                                        1996   1995   1994   1993   1992
                                        ----   ----   ----   ----   ----
   Company:
     Jack-Ups
         Total                            9     10     11     11     11
         Utilization Rate
          (Operating Method)             93%    84%    69%    84%    71%
     Semisubmersibles(1)
         Total                            7      6      5      5      5
         Utilization Rate
          (Operating Method)             92%    92%    80%    80%    64%
     Drilling Tenders
         Total                            2      2      2      2      2
         Utilization Rate
          (Operating Method)             86%    76%   100%   100%   100%
     Floating Production Vessel
         Total                            1      -      -      -      -
         Utilization Rate
          (Operating Method)            100%     -      -      -      -

   Industry:(2)
     Jack-Ups
         Total                          301    316    319    323    331
         Utilization Rate                89%    81%    78%    82%    71%
     Semisubmersibles
         Total                          126    124    133    134    141
         Utilization Rate                91%    83%    74%    76%    73%
     Drilling Tenders
         Total                           30     31     31     31     32
         Utilization Rate                72%    69%    70%    77%    80%
   ______________________

 (1)  The Company's  semisubmersible utilization  percentage does  not include
      "RIG 41" as it has not yet  been placed in service and does not  include
      the  "J.W. McLEAN" prior to June 1996  when the drilling unit was placed
      in service.   

 (2)  Industry averages  were calculated from  data derived from  the Offshore
      Rig Locator.   Industry averages for floating production vessels are not
      presented as such data is not readily available.


Industry Conditions and Competition

      The financial  performance of  the offshore contract  drilling industry,
domestically and  abroad, is  dependent upon  the  exploration and  production
programs  of  oil  and  gas  producers.    These  programs  are  substantially
influenced  by producing companies' cost to  find, develop and produce oil and
gas; demand for and price of oil and natural gas; technological  advancements,
exploration success,  restrictions and incentives relative  to exploration and
production imposed by governmental authorities controlling offshore production
areas and  economic conditions in general.   A dramatic decline  in demand for
offshore drilling services began in 1985.  This  decline reflected the effects
of lower earnings of oil  and gas producers and the unstable oil and gas price
environment.   As a result, the  entire offshore drilling industry experienced
lower  dayrates and associated earnings.   Demand for drilling services turned
upward in the latter part  of 1987.  This upward trend continued  through 1990
but  conditions  deteriorated in  1991  and  1992, primarily  as  a  result of
depressed conditions  in the Gulf  of Mexico.   However, as  U.S. natural  gas
prices  increased in late 1992, conditions in  the Gulf of Mexico improved and
continued to  improve throughout most  of 1993.   Overall industry  conditions
improved  in  1993  from  1992,  as  industry  utilization  increased.    This
improvement continued into the first part of 1994, but toward the end of 1994,
market  conditions in the  Gulf of Mexico,  primarily for  jack-ups, had again
begun to deteriorate due  to a weakening price for natural gas.   As a result,
industry  utilization for 1994 remained essentially  flat as compared to 1993.
Industry utilization has been on the  rise since 1994, mainly due to increased
demand  with a  substantial tightening  of the  deeper water  drilling markets
occurring in 1996.  Late 1996 also saw substantial improvements in the jack-up
market.   Dayrates for semisubmersibles  and high specification  jack-ups have
strengthened significantly since 1993.  Recent technological advancements have
made  it more economical for oil and  gas producers to pursue deepwater, harsh
environment programs  and demand  for high specification  semisubmersibles and
jack-ups has increased  accordingly.  However, no assurance can  be given that
such improved conditions can be sustained in the future.

      The   Company's  operations  have  benefitted  from  a  decline  in  the
availability of operational  offshore units during the last several years.  As
demand has continued to rise both  as a function of technological advancements
and  somewhat  higher   oil  and  natural  gas  prices,  the  Company's  fleet
utilization has  increased.  As  dayrates continue  to rise,  however, it  may
become economically feasible for participants to consider the reactivation and
upgrade of  currently idle offshore units  as well as the  new construction of
offshore units.  The  reentry of this idle capacity and  the entry of newbuild
offshore  units into the active market  could depress dayrates and utilization
rates of  the Company's  offshore units.   There  does not  appear  to be  any
immediate  danger  of this  new  supply  adversely  affecting  current  market
conditions,  however, since recent plans for  new construction and upgrades in
the industry  appear to be supported by fixed contracted work for the vessels.
Recently, plans for upgrades and new  construction have not normally been done
on a speculative basis.  Further, in the case of new construction, there  is a
long lead time for design and construction and limited shipyard facilities and
expertise in this area. 

      In response to  changing demand,  offshore units can  be moved from  one
region to another.   The cost of  such moves is  significant, however, and  is
weighed  against the benefits  expected to be  derived.   The Company normally
will not  undertake a major mobilization of a mobile offshore unit without its
customer agreeing to reimburse the Company for all or a substantial portion of
such costs, unless  the dayrates in the new area are expected to be sufficient
to justify such expenditures.

      Political and  military  events in  the Middle  East and  in the  former
Soviet  Union are  an  example of  the  factors which  can  contribute to  the
volatility of  world oil prices.  Other factors which influence demand for the
Company's  services include  the  ability  of  the Organization  of  Petroleum
Exporting Countries ("OPEC") to set and maintain production targets, the level
of production  by  non-OPEC  countries,  worldwide demand  for  oil  and  gas,
domestic production of natural gas, general economic and political conditions,
availability of new offshore oil and gas leases and concessions to explore and
develop, and  governmental regulations.   Accordingly, there  is and  probably
will  continue to  be uncertainty as  to the  future level  of demand  for the
Company's services and  the timing and duration of any  increases or decreases
in demand.

      The  offshore contract drilling market is  highly competitive and no one
competitor  is  dominant.   There  are  over 70  competitors  in the  offshore
drilling industry deploying approximately 500 drilling units around the world.
Although   the  supply  and  demand  balance   in  the  markets  had  improved
significantly  by yearend 1996, the supply  of such equipment has, since 1982,
generally exceeded demand.  The result has been a prolonged  period of intense
price  competition during  which many drilling  units have been  idle for long
periods of time.  Consequently, some drilling contractors have previously gone
out  of business, sought protection under  the bankruptcy laws or consolidated
with other  contractors.  Notwithstanding  these events, the  industry remains
fragmented  and  competitive.    The Company  believes  that  competition  for
drilling contracts will continue  for the foreseeable future.   Certain of the
Company's competitors are larger and have greater financial resources than the
Company,  which may  enable them  to better  withstand industry  downturns, to
compete on  the basis of  dayrates, or to  build new rigs or  acquire existing
rigs that become available for purchase.

      The harsh environment or deepwater capabilities of the Company's fourth-
generation    semisubmersibles  and  the  versatility  of  its  nine  300-foot
cantilever  jack-ups,  the geographical  dispersion  of  the Company's  mobile
offshore units throughout the world and its experienced drilling personnel are
positive elements in  the pursuit of the Company's strategy  and  have enabled
the  Company  to  maintain a  relatively  strong competitive  position  in the
industry.   Further,  the  Company believes  that the  reputation  for quality
equipment, performance  and safety  it has  built over  the past  four decades
compares favorably with many of its competitors.

      Assuming available  offshore units meet customer  requirements, price is
the  most  important competitive  factor  in  obtaining a  drilling  contract.
Confidence  of customers  in the  financial stability  of the  contractor, the
quality of its offshore units, the competence of its personnel, the reputation
for reliability  and condition of its offshore units and its safety record are
also important in securing drilling contracts.

Business Strategy

      DRILLING OPERATIONS - The Company engages in contract drilling and other
related services in major offshore oil and gas exploration and producing areas
worldwide.  The Company's  principal operating strategy  is to achieve a  high
utilization of  its fleet by operating in promising areas throughout the world
and to earn premium  dayrates by concentrating its  capabilities in the  harsh
environment  and/or  deepwater drilling segments  of the market. The Company's
emphasis on the  harsh environment and/or deepwater segments is also reflected
in  its  acquisitions of  the capital  stock of  Drilling.   In  addition, the
Company will selectively  accept opportunities to manage  and/or market mobile
offshore units owned by third parties.

      The offshore drilling  industry is highly competitive.   In addition  to
price, factors such as the quality of a drilling company's fleet, the overseas
operating  experience of  its  management and  employees,  the experience  and
reputation of its  engineering staff, its reputation  as a deepwater  operator
and customer relationships determine a contract drilling company's ability  to
compete  favorably with  the  many  other  contractors  in  the  international
offshore drilling  market.    In  addition, high  utilization  of  a  drilling
company's  mobile offshore  units, as  compared to  the industry  average, may
enhance  its  operational capabilities  and  safety  performance by  promoting
retention of trained personnel and equipment maintenance.

      The Company  intends to continue  to modernize  and expand its  fleet in
order to meet with the requirements of competitive conditions and the changing
needs of  its customers. In this regard, the Company  has from time to time in
the past  engaged  in,  and  currently continues  to  engage  in,  preliminary
discussions  with  other  industry   participants  with  respect  to  business
combinations that would potentially strengthen its competitive position in the
offshore  drilling industry.  The Company  continues to consider the selective
acquisition  of existing  vessels,  directly or  through business  combination
transactions.  In  October 1996, the  Company entered into  a venture with  an
affiliate of Conoco Inc. under which the venture will construct and operate an
ultra  deepwater  dynamically positioned drillship.   The Company will provide
drilling services  to the new venture  which was awarded a  five-year drilling
contract for the drillship with  Conoco Inc.  See "FINANCIAL CONDITION"  under
Item 7  for further discussions of  the purchase of mobile  offshore units and
the construction of the drillship.

      DEVELOPMENT  OPERATIONS   -  The  Company,  through   its  wholly  owned
subsidiary  Reading &  Bates Development  Co., engages  in the  acquisition of
working interests  in offshore oil  and gas  properties pursuant  to which  it
shares in reservoir  and oil and gas  price risks and thus  profits and losses
from such properties.  The Company is able, from time to time, to acquire such
interests  as a result of being able  to provide access to the Company's fleet
of drilling  units and to the  services provided by Total  Offshore Production
Systems  (TOPS), a joint venture  in which the Company has  a 75% interest, as
described  below.    See  "FINANCIAL  CONDITION"  under  Item  7  for  further
discussion of the purchase of oil and gas interests.

      In February 1996, Reading & Bates Development Co. and Intec Engineering,
Inc.,  announced  the formation  of TOPS.   TOPS  will provide  complete field
developments and services to operators desiring to contract field developments
through a single  entity and will pursue deepwater  offshore developments on a
worldwide basis with a group of preferred contractors and manufacturers.

      The  Company may evaluate various opportunities to expand its activities
in the  area of floating production facilities.   Floating production offers a
lower cost alternative to fixed platforms as water depth increases.  There are
two  major categories of  floating production  facilities, those  with surface
(dry) wellheads  and those with  subsea (wet)  wellheads.  Those  with surface
wellheads, such as tension leg platforms  and deep draft vessels like the SPAR
buoy,  generally  require larger  investments  than  systems utilizing  subsea
wellheads.

      The  systems  utilizing subsea  wellheads  generally  have the  flexible
production risers connected to a moored  vessel, either a semisubmersible or a
monohull, with the processing equipment mounted on deck. 

      If a  semisubmersible  vessel  is  utilized, it  is  called  a  floating
production unit or  system.  This unit or system does not provide any storage,
and the processed crude  oil must be exported  either through a pipeline  or a
floating storage vessel which is, in turn, offloaded by shuttle tankers.

      If a monohull vessel is utilized, it has inherent storage capability and
is called a floating production, storage and offloading vessel.  These vessels
can be spread  moored in mild/moderate environments  but are turret  moored in
harsh  environments  to  minimize mooring  forces  and vessel  motion.   These
vessels normally export processed crude directly to shuttle tankers.

      Reading  & Bates  Development  Co. was  the General  Contractor  for the
provision of a  semisubmersible floating production system for the Liuhua 11-1
Project jointly developed by Amoco Orient Petroleum Company and China Offshore
Oil  Nanhai East Corporation in the South China  Sea.  On August 13, 1995, the
Company announced  that its subsidiary,  Reading &  Bates Development Co.  had
successfully  completed its  portion of the  Liuhua 11-1  project.   Reading &
Bates  Development Co.'s  contribution  to the  project  was the  procurement,
engineering, conversion, life extension, and project management for conversion
of  a  second-generation  semisubmersible  drilling  unit  into  the  floating
production system, "NANHAI TIAO ZHAN".  Further in September 1996, the Company
purchased  the floating production storage and shuttle vessel, the "SEILLEAN";
this purchase corresponded to  the Company's strategy  to expand the scope  of
the Company's  operations to include  full service offshore  field development
capability.  See "FINANCIAL  CONDITION" under Item 7 for further discussion of
the purchase of the "SEILLEAN". 

Contracts, Marketing and Customers

      Mobile offshore units are  generally employed under individual contracts
which extend  over a period of time covering either  the drilling of a well or
wells  (a  "well-to-well  contract") or  a  stated term  (a  "term contract").
Contracts for the employment of offshore units are most often awarded based on
competitive  bidding; however, some  contracts are the  result of negotiations
between the  drilling contractor and the customer.  Most contracts provide for
early termination and  many provide for extension  options exercisable by  the
customer.   The  Company's  contracts generally  provide for  payment  in U.S.
dollars.  In general, the Company seeks to have a reasonable balance of short-
and long-term  contracts to minimize the  downside impact of a  decline in the
market,  while obtaining the benefit  of increasing market  prices in a rising
market.  The  Company's contracts also typically provide for compensation on a
"daywork" basis, under which the Company  receives a fixed amount per day that
the unit is operating under contract.  Certain of the contracts may allow  the
Company to  recover some or  all of its mobilization  and demobilization costs
associated  with   moving  a  unit  between  contracts,  depending  on  market
conditions then prevailing.  The  dayrate under such daywork contracts  may be
lower or not payable when the  drilling unit is under tow to or from the drill
site (other  than field  moves) or  when operations  are suspended  because of
weather  or  mechanical  problems.    Under  daywork  contracts,  the  Company
generally  is  responsible  for paying  the  operating expenses  of  the unit,
including wages and the cost of incidental supplies.  Although the majority of
the Company's contracts are constructed under the  traditional "daywork" basis
as  described above,  the  Company has  participated via  a  joint venture  in
"turnkey"  contracts.   Essentially,  a  turnkey  contract  provides  for  the
drilling  of a  well on a  fixed price basis.   In 1993,  the Company formally
established a turnkey department and in 1994 the Company entered  into a joint
venture with F. J. Brown  & Associates, Inc. to offer turnkey services in both
the international  markets and the  U.S. Gulf of  Mexico market.  So  far, the
cumulative net results  of  the Company's turnkey contracts  are immaterial in
total and insignificant as compared to the Company's operating income from the
traditional  daywork contracting method.   Additionally,   the Company's joint
venture approach to  entering the turnkey  market  has minimized the Company's
overhead costs and capital investment costs,  thus somewhat reducing financial
risks to the Company.   The Company is considering whether or  not to continue
this joint venture with F. J. Brown & Associates, Inc.

      The  Company  maintains  a  decentralized  organization,  with   foreign
regional and  area  offices  throughout  the world.    The  Company's  primary
marketing efforts are  carried out through these regional and area offices and
its Houston office.

      When  the  Company's  offshore   units  operate  in  foreign  locations,
operations  are  often  conducted  in  conjunction  with     local  companies.
Representative  of the offshore areas where  the Company has arrangements with
local companies are Abu Dhabi, Brazil, Brunei, China, Egypt, India, Indonesia,
Italy, Korea, Malaysia  and Nigeria.  The purpose of  these arrangements is to
draw on the marketing, technical,  supply and government relations  assistance
of    local  third parties  and  in  some  cases to  comply  with  local legal
requirements.   Typically, the financial terms  of these arrangements are such
that the third party  receives a stated percentage of drilling revenues.  Most
of the Company's  existing arrangements are with third parties  with which the
Company has had a relationship for ten or more years.  

      The Company has a base of customers which includes major and independent
foreign and domestic oil and gas companies, as well as foreign state-owned oil
companies.   During 1996, the Company  performed services for approximately 29
different customers. 

      The following  is a listing of customers  from whom the Company received
revenues equal to or in excess of ten percent of total operating revenues:

                             1996             1995                1994
                             ----             ----                ----
                              % of Total        % of Total          % of Total
Customer              Revenue  Revenues  Revenue  Revenues  Revenue  Revenues
                      -------  --------  -------  --------  -------  --------
                   (in millions)      (in millions)      (in millions)

British Petroleum
   and affiliates      $ 58.0     20%     $ 28.9     14%       $ *         *

Royal Dutch/Shell
 Group and
 affiliates            $ 35.6     12%     $ 29.4     14%      $35.2      21%

 *Less than 10%

      As is  typical  in  the  industry, the  Company  does  business  with  a
relatively small  number of customers at any given time.   The loss of any one
of  such customers  could, at  least on  a short-term  basis, have  a material
adverse impact on the Company's business or results of operations.  Management
believes,  however, that the Company would  have alternative customers for its
services  in the event of the loss of any single customer and that the loss of
any one customer would not have a material adverse effect on  the Company on a
long-term basis.

      Financial information by geographic area is furnished in Note K of Notes
to Consolidated Financial Statements.

Environmental Matters

      In recent years,  increased concern has been  raised over protection  of
the  environment.   Offshore drilling  in certain  areas has  been opposed  by
environmental  groups  and, in  certain areas,  has been  restricted.   To the
extent laws are enacted or other governmental actions are  taken that prohibit
or restrict offshore drilling  or impose environmental protection requirements
that  result in increased costs to the oil and gas industry in general and the
offshore contract drilling industry in particular, the business  and prospects
of the Company could be adversely affected.

      The Company's operations  may involve the use  or handling of  materials
that may be classified as environmentally hazardous substances.  Environmental
laws and regulations  applicable in the United  States and other  countries in
which the  Company conducts operations  have generally become  more stringent,
and may in certain circumstances impose "strict liability", rendering a person
liable  for environmental damage without regard  to negligence or fault on the
part  of such person.   Such  laws and regulations  may expose  the Company to
liability for the  conduct of or conditions  caused by others, or  for acts of
the Company which were in compliance with all applicable laws at the time such
acts were taken.  The Company  does not believe that environmental regulations
have had any material adverse  effect on its capital expenditures, results  of
operations or competitive  position, and does not anticipate that any material
expenditures will  be required to enable  it to comply with  existing laws and
regulations.  However, the modification of existing laws or regulations or the
adoption of new  laws or regulations  curtailing exploratory or  developmental
drilling for oil  and gas for economic,  environmental or other reasons  could
have a material adverse effect on the Company's operations.

      The Oil Pollution  Act of 1990 ("OPA  '90") and regulations  promulgated
pursuant thereto  impose  a variety  of regulations  on "responsible  parties"
related to  the prevention of oil  spills and liability for  damages resulting
from  such spills.  A "responsible party" includes  the owner or operator of a
facility  or  vessel, or  the  lessee or  permittee of  the  area in  which an
offshore facility is located.   OPA '90 assigns liability  to each responsible
party  for oil  removal costs  and a  variety of  public and  private damages.
While  liability limits  apply in  some circumstances,  a   party cannot  take
advantage  of liability limits if the spill  was caused by gross negligence or
willful  misconduct   or  resulted  from   violation  of  a   federal  safety,
construction or operating regulation.  If the party fails to report a spill or
to  cooperate fully  in the cleanup,  liability limits likewise  do not apply.
Few defenses exist to the liability imposed by OPA '90.   OPA '90 also imposes
ongoing requirements on a responsible party.  These include proof of financial
responsibility (to  cover  at least  some  costs  in a  potential  spill)  and
preparation  of an  oil spill  contingency  plan.   A failure  to comply  with
ongoing  requirements or inadequate cooperation in a spill event may subject a
responsible party to civil or criminal enforcement action.  In  short, OPA '90
places a burden on drilling rig owners or operators to conduct safe operations
and take other  measures to prevent  oil spills.  If  a spill occurs,  OPA '90
then imposes liability for resulting damages.

      The  Company generally  seeks  to obtain  indemnity agreements  whenever
possible from  the Company's customers  requiring such  customers to hold  the
Company harmless in the event of liability for pollution that originates below
the  water surface, including, where applicable,  liability under OPA '90, and
maintains marine  liability insurance  and contingent operators  extra expense
coverage  (normal operator's  extra  expense coverage  is  maintained, to  the
extent of  the Company's interest in oil and gas properties, for operations of
such properties) which affords limited protection to the Company.  There is no
assurance  that   such  insurance  or  contractual   indemnification  will  be
sufficient or effective to protect the Company from liability under OPA '90.

      In  addition, the  Outer  Continental Shelf  Lands  Act and  regulations
promulgated  pursuant thereto  impose a  variety of   regulations  relating to
safety and environmental protection applicable to lessees, permitees and other
parties operating  on  the  Outer  Continental Shelf.    Specific  design  and
operational standards  may  apply to  Outer Continental  Shelf vessels,  rigs,
platforms,  vehicles  and  structures.   Violations  of  lease  conditions  or
regulations  issued pursuant  to  the Outer  Continental Shelf  Lands  Act can
result in substantial civil  and criminal penalties as well as potential court
injunctions  curtailing  operations and  the  cancellation  of  leases.   Such
enforcement  liabilities  can  result  from  either  governmental  or  citizen
prosecution.

Governmental Regulation

      Many aspects of  the Company's operations are  affected by domestic  and
foreign  political  developments  and  are subject  to  numerous  domestic and
foreign  governmental  laws  and  regulations  that  may  relate  directly  or
indirectly  to  the  Company's  business and  operations,  including,  without
limitation, laws and  regulations controlling the discharge  of materials into
the environment, requiring removal and cleanup  under certain circumstances or
otherwise relating  to the protection  of the environment,  and certification,
licensing, safety  and training  and other requirements  imposed by  treaties,
laws, regulations and  conventions in the jurisdictions  in which the  Company
operates.  The contract drilling industry is dependent on demand for  services
from  the oil  and gas exploration  industry and, accordingly,  is affected by
changing taxes,  regulations and other  laws relating  to the energy  business
generally.  The  Company does not believe  that governmental regulations  have
had  any  material  adverse effect  on  its capital  expenditures,  results of
operations or competitive  position, and does not anticipate that any material
expenditures will  be required to enable  it to comply with  existing laws and
regulations.  However,  the modification of existing  laws and regulations  or
the  adoption  of  new laws  and  regulations  curtailing  or  increasing  the
effective cost of  exploratory or developmental drilling  for oil and gas  for
economic, environmental or  other reasons could have a material adverse effect
on  the Company's  operations.   The  Company cannot  currently  determine the
extent  to  which  future  earnings may  be  affected  by  new legislation  or
regulations or compliance  with new or existing  regulations which may  become
applicable as a result of rig relocation.

Operating Risks and Insurance

      The Company's operations are subject to the many hazards inherent in the
offshore drilling and oil and gas industries.  In  the drilling of oil and gas
wells, especially exploratory  wells where little is  known of the  subsurface
formations,  there  always exists  a  possibility  of encountering  unexpected
conditions of  extreme pressure  and temperature and  the risk  of a  blowout,
cratering and fires that could cause injury or death to personnel, substantial
damages  to the property of the Company  and others, pollution, and suspension
of  drilling operations.   The  Company's offshore  fleet is  also subject  to
hazards inherent in marine operations, either while on site or under tow, such
as  capsizing,  grounding,  collision,  damage   from  heavy  weather  or  sea
conditions and unsound location.  The Company may also be subject to liability
for  oil  spills,  reservoir damage  and  other  accidents  that  could  cause
substantial damage.   The Company  maintains such  insurance protection as  it
deems prudent, including  physical damage or loss  and liability insurance  on
its  offshore fleet.     In addition,  the Company  generally seeks  to obtain
indemnity agreements whenever possible from the Company's customers, requiring
such  customers  to hold  the  Company  harmless  in  the  event  of  loss  of
production, reservoir damage  or liability for pollution that originates below
the water surface.  When obtained, such contractual indemnification protection
may not  in all cases  be supported  by adequate insurance  maintained by  the
customer.  There is no assurance that such insurance or  contractual indemnity
protection will be  sufficient or effective under all circumstances or against
all  hazards  to which  the Company  may be  subject.   The  principal hazards
against  which  the Company  may  not  be  fully  insured or  indemnified  are
environmental liabilities which  may result from a blowout or similar accident
or  a liability resulting  from reservoir damage  alleged to be  caused by the
negligence  or  other legal  fault  of  the Company.    Further,  there is  no
assurance that  the Company will be able to obtain adequate insurance coverage
at the rates it deems reasonable in the  future.  Recognizing these risks, the
Company has various  programs that are designed to promote  a safe environment
for its personnel and equipment.

      The Company's foreign operations are also subject  to certain political,
economic  and  other uncertainties,  including,  among others,  risks  of war,
expropriation,  nationalization, renegotiation  or  nullification of  existing
contracts,   taxation  policies,   foreign  exchange   restrictions,  changing
political  conditions, international monetary  fluctuations and  other hazards
arising out of  foreign governmental sovereignty over  certain areas in  which
the  Company conducts operations.  Currently, when conducting foreign drilling
operations in areas the Company perceives as politically unstable, the Company
may  (i)   negotiate   contracts   providing   for   indemnification   against
expropriation  and certain other  political risks  or (ii)  purchase insurance
covering such risks, to the extent available at reasonable cost.   The Company
believes it is adequately covered by  insurance, but no assurance can be given
with respect  to the availability of such insurance at acceptable rates in the
future.   Since  1979, the  Company has  not experienced  any material  losses
associated with the above-described political risks.

Employees

      At January 31, 1997,  the Company had approximately 1,800 employees.  As
the demand  for  contract  drilling  services has  increased,  the  supply  of
qualified personnel has  decreased somewhat as compared  to recent years.  The
Company does  not consider a possibility of  a shortage of qualified personnel
currently to be a  major factor in its  business.  However, retention  of such
personnel might become more difficult without increases in compensation.   The
Company does not have any material collective bargaining agreements.

Item 3.  Legal Proceedings

      The Company was  one of the defendants in certain  litigation brought in
July  1984 by the  Cheyenne-Arapaho Tribes  of Oklahoma  in the  U.S. District
Court  for  the  Western  District  of  Oklahoma,  seeking  to  set aside  two
communitization agreements with respect to three leases involving tribal lands
in which  the Company  previously owned  interests and  to  have those  leases
declared expired.  In June 1989, the  U.S. District  Court entered an  interim
order in favor of the plaintiffs. On appeal, the U.S. Court of Appeals for the
Tenth  Circuit upheld  the  decision of  the  trial  court and  petitions  for
rehearing  of that  decision were  denied. Petitions  for writs  of certiorari
filed by the parties with the U.S. Supreme Court were denied, and the case was
remanded to the trial court for determination  of damages.  In June 1996, this
matter  was settled, and the litigation  was dismissed with prejudice, without
significant financial statement impact.

      In November 1988, a lawsuit was filed in the U.S. District Court for the
Southern District  of West Virginia against Reading & Bates Coal Co., a wholly
owned subsidiary of the Company, by SCW Associates, Inc. claiming breach of an
alleged agreement to purchase the stock  of Belva Coal Company, a wholly owned
subsidiary of  Reading & Bates Coal Co. with coal properties in West Virginia.
When those coal  properties were sold in July 1989 as  part of the disposition
of the  Company's coal operations,  the purchasing  joint venture  indemnified
Reading & Bates Coal Co. and the Company against any liability Reading & Bates
Coal Co. might incur  as the result  of this litigation.   A judgment for  the
plaintiff  of $32,000 entered  in February  1991 was  satisfied and  Reading &
Bates Coal  Co. was indemnified by  the purchasing joint venture.   On October
31, 1990, SCW  Associates, Inc., the plaintiff in the above-referenced action,
filed a separate ancillary action  in the Circuit Court, Kanawha  County, West
Virginia against the Company and a  wholly owned subsidiary of Reading & Bates
Coal Co.,  Caymen Coal, Inc. (former owner of the Company's West Virginia coal
properties), as well  as the joint venture, Mr. William B. Sturgill personally
(former President of Reading & Bates Coal Co.), three other companies in which
the  Company believes Mr. Sturgill holds an  equity interest, two employees of
the  joint  venture,   First  National  Bank  of  Chicago  and  First  Capital
Corporation.  The lawsuit seeks to recover compensatory damages of $50 million
and punitive damages of $50 million for alleged tortious interference with the
contractual rights of the plaintiff and to impose a constructive  trust on the
proceeds  of the use and/or  sale of the  assets of Caymen Coal,  Inc. as they
existed on   October 15,  1988.   Subsequently,  the  court entered  an  order
dismissing  the Company's indirect subsidiary.   The Company intends to defend
its interests vigorously and believes the  damages alleged by the plaintiff in
this action are highly exaggerated.   In any event, the Company  believes that
it has valid defenses and that it will prevail in this litigation.  

      On March 17,  1995, an action was filed by Louis Silverman, individually
and  on behalf  of  all  other shareholders  of  Reading  & Bates  Corporation
similarly situated, against  the Company and  the individual   members of  its
board of  directors in  the Court of  Chancery of  the State of  Delaware, New
Castle County.  On April 7, 1995 three additional actions were filed on behalf
of  Congregation Beth  Joseph, Harry  Lewis and  Mortimer Shulman  against the
Company and its directors  in the Court of Chancery of the  State of Delaware.
In  each of  the four  actions, the  plaintiff alleged,  inter alia,  that the
directors  breached  their  fiduciary   duties  by  rejecting  the  previously
announced unsolicited merger proposal made by Sonat Offshore Drilling Inc. and
by adopting  the previously announced  shareholder rights plan.   Each of  the
named plaintiffs in the four actions purported to be an owner of the Company's
common stock  and sought to represent  a class of shareholders  of the Company
who are similarly situated.  Each of  the plaintiffs sought injunctive relief,
damages  in unspecified amounts and certain  other relief, including costs and
expenses.    In  March  1996,  the plaintiffs  in  each  of  the  four actions
voluntarily dismissed same on a without prejudice basis, and the court entered
orders accordingly.

      The Company is involved in these and various other legal actions arising
in  the  normal course  of  business.   After  taking  into consideration  the
evaluation of  such actions by counsel  for the Company, management  is of the
opinion that outcome of all known and potential claims and litigation will not
have  a material  adverse  effect on  the Company's  business  or consolidated
financial  position  or  results  of  operations.   See  Note  E  of  Notes to
Consolidated Financial Statements. 

Item 4.  Submission of Matters to a Vote of Security Holders

      No matter was  submitted to a  vote of security  holders of the  Company
during the fourth quarter of fiscal year 1996.

Regulation S-K Item 401(b)

                     EXECUTIVE OFFICERS OF THE REGISTRANT

                The following table sets forth  certain information concerning
each executive officer of the  Company.  Unless otherwise indicated, each  has
served  in  the positions  set  forth for  more  than five  years.   Executive
officers  are  elected  for  a  term  of  one  year.    There  are  no  family
relationships between any of the persons named.  

                                   Positions and Offices
    Name and Age              Presently Held with the Registrant
    ------------              ----------------------------------
  P. B. Loyd, Jr., 50 (1)   Chairman, Director, President and Chief Executive
                             Officer
  T. W. Nagle, 46 (2)       Executive Vice President, Finance and
                             Administration 
  W. K. Hillin, 55 (3)      Senior Vice President, General Counsel and
                             Secretary
  C. R. Ofner, 51 (4)       Vice President - Business Development
  D. L. McIntire, 59 (5)    Vice President - Human Resources

- ------------------------------                 

(1)   Mr. Loyd was named President  for the Company in October 1993,  Chairman
      and Chief Executive Officer for  the Company in June 1991 and has been a
      Director since  April 1991.   Mr. Loyd  controls Greenwing  Investments,
      Inc., a stockholder  of the Company,  and has been  President of Loyd  &
      Associates, Inc., a financial consulting firm, since 1989.  Mr. Loyd was
      Chief   Executive   Officer   and   a   Director   of   Chiles-Alexander
      International, Inc.  from 1987 to  1989,   President and  a Director  of
      Griffin-Alexander  Drilling Company from 1984 to 1987 and prior to that,
      a  Director   and   Chief   Financial  Officer   of   Houston   Offshore
      International,  all  of which  are  companies in  the  offshore drilling
      industry.

(2)   Mr. Nagle was named Director - Finance and Administration for  Reading &
      Bates Drilling Co. ("RBDC"), a wholly owned subsidiary of the Company in
      June  1985.    In  January  1989,  he  was  named  Director  -  Business
      Development for the  Company.  In  April 1990, he  was named Director  -
      Support Services for RBDC.  In August 1991, he was named Vice  President
      and  Chief Financial Officer.  He  was appointed to his present position
      with the Company in September 1995.

(3)   Mr.  Hillin was named Vice President - Legal for RBDC in 1978.  In March
      1986 he was named Vice President - Legal with the Company, was appointed
      Vice President - Finance and Legal in January 1988, was appointed Senior
      Vice President - Finance and Administration in November 1988 and in July
      1990 was also appointed General Counsel and Secretary.  He was appointed
      to his present position with the Company in August 1991.

(4)   Mr. Ofner  was named  Vice President  and  General Manager  for RBDC  in
      January  1987.   In April  1988,  he was  appointed  Vice President  and
      Regional Manager and  was appointed  Senior Vice President  - Sales  and
      Marketing in April 1990.  He was appointed to his present position  with
      the Company in August 1991. 

(5)   Mr. McIntire  was named  Director - Human  Resources for  RBDC in  April
      1986,  Manager -  Personnel Operations  in January  1989 and  Director -
      Human Resources  for the Company in  January 1990.  He  was appointed to
      his present position with the Company in August 1991.

                                    PART II

Item 5.  Market for the Registrant's Common Stock and Related

Stockholder Matters

      The Company's common  stock is traded on the New  York and Pacific Stock
Exchanges under  the symbol "RB".   The following table shows  for the periods
indicated the high and low sales prices of the common stock as reported on the
New York Stock Exchange Composite Transactions Tape.

                                    1996                     1995
                                    ----                     ----
           Quarter              High         Low         High      Low 
           -------              ----         ---         ----      ---
           First               20 3/8       14 1/4       8 1/8      5 1/2
           Second              26 1/8       19 3/4       9 3/8      7    
           Third               27 7/8       20          13 1/8      8 5/8
           Fourth              31 1/8       25          15 3/8     10 3/4  

            There were approximately 4,600 holders of record of  the Company's
common stock as of February 28, 1997.

            The Company has not paid cash  dividends on the common stock since
the first quarter of  1986 and management does  not expect any cash  dividends
will be declared  or paid on  the common stock  in the reasonably  foreseeable
future.  

            In  March  1995,  the Company  adopted  a  Preferred Share  Rights
Agreement.  See "FINANCIAL CONDITION" under Item 7. 


Item 6. Selected Financial Data

                             READING & BATES CORPORATION
                                   AND SUBSIDIARIES
                      (in thousands except per share amounts)

                                      Years Ended December 31,             
                         ----------------------------------------------------
                           1996       1995       1994       1993       1992
                         --------   --------   --------   --------   --------
Operating revenues       $290,223   $212,795   $169,058   $183,752   $156,659
                         ========   ========   ========   ========   ========
Income (loss) before
 extraordinary gain      $ 77,916   $ 18,392   $(17,146)  $  4,656   $  3,402

Extraordinary gain (1)          -      3,430          -          -          -
                         --------   --------   --------   --------   --------
Net income (loss)          77,916     21,822    (17,146)     4,656      3,402

Dividends on preferred
 stock (2)                  3,631      4,855      4,859      2,052          -

Accretion in redemption
 price of redeemable
 stocks                         -          -          -          -      5,275
                         --------   --------   --------   --------   --------
Net income (loss)
 applicable to common
 stockholders            $ 74,285   $ 16,967   $(22,005)  $  2,604   $ (1,873)
                         ========   ========   ========   ========   ========
Primary net income 
 (loss) per common share:
   Income (loss) before
   extraordinary gain    $   1.15   $    .22   $   (.39)  $    .05   $   (.04)

   Extraordinary gain           -        .06          -          -          -
                         --------   --------   --------   --------   --------
Net income (loss)        $   1.15   $    .28   $   (.39)  $    .05   $   (.04)
                         ========   ========   ========   ========   ========
Fully diluted net income
 per common share        $   1.10   $      -   $      -   $      -   $      -
                         ========   ========   ========   ========   ========
Total assets (3)         $808,190   $605,780   $586,801   $612,474   $614,628
                         ========   ========   ========   ========   ========
Long-term obligations
 (including current 
 portion) and
 redeemable stocks       $219,078   $113,373   $126,036   $116,796   $143,385
                         ========   ========   ========   ========   ========
Dividends on
 Common Stock            $      -   $      -   $      -   $      -   $      -  
                         ========   ========   ========   ========   ========
- -------------------
(1)   Extraordinary  gain for 1995  is due to the  extinguishment  of  a  debt
      obligation.  

(2)   On  August 5, 1996, the Company announced it would  redeem  all  of  the
      outstanding shares of its preferred  stock on September 30, 1996 at  the
      redemption  price of $26.1375 per  share.  However, the majority  of the
      preferred stock outstanding was converted into approximately 8.6 million
      shares of the Company's common stock on or before September 30, 1996 and
      on  September  30, 1996  approximately 1,041 shares were redeemed by the
      Company. 

(3)   Certain amounts in 1994 have been reclassified for comparative purposes.
      Such  reclassifications  had  no effect  on the net  loss or the overall
      financial condition of the Company.


Item 7.    Management's Discussion  and Analysis  of  Financial Condition  and
Results of Operations

                              FINANCIAL CONDITION

Drillship Project

      In October 1996, the Company  and an affiliate of Conoco, Inc.  formed a
50/50 joint venture  to build and operate  a dynamically positioned  drillship
capable  of  drilling at  water  depths  up to  10,000  feet.   Samsung  Heavy
Industries of Korea has been awarded the contract to construct the vessel at a
current estimated cost of $220 million plus capitalized interest.  Immediately
following the delivery of  the drillship, which is expected to  be in 1998, it
will commence a five year drilling program in the  deep water of the U.S. Gulf
of  Mexico.   The Company's portion  of the  project is expected  to be funded
through working capital and project financing which is expected to be provided
by a third party on a limited recourse basis.

Purchase of Floating Production Vessel

      In September 1996, the Company purchased the floating production storage
and shuttle (FPSS) vessel, the  "SEILLEAN", for approximately $42.2 million in
cash.    The  vessel  was  built in  1990  for  extended  well  testing, early
production and life of field  production and is currently working in  the U.K.
sector of the North Sea.  The vessel will remain under its current operational
contract on a life of field basis  after which time the vessel can continue to
be  used in  its current  configuration or  it can be  modified to  a floating
production storage and offloading (FPSO) vessel or converted to  a dynamically
positioned drillship.  

Purchase of Semisubmersibles

      In  September  1994,  the   Company    purchased  the  second-generation
semisubmersible  "RIG 41" with  the intent to  convert the unit  to a floating
production vessel (FPV).  However, the Company  subsequently decided to retain
the unit as a drilling unit and  as such "RIG 41" is currently being  upgraded
to operate under certain conditions  in 3,300 feet of water.   Upon completion
of the upgrade, estimated to be at the  end of the third quarter of 1997, "RIG
41"  will  commence  a  one  year  contract  with  Enserch  Exploration,  Inc.
("Enserch") (see "Purchase of Oil & Gas Interests" below).

      In September  1995, the Company  purchased the support  vessel "IOLAIR".
The   "IOLAIR"  is   a   dynamically  positioned   third-generation  deepwater
semisubmersible  support vessel  built in  1982 for  field support  and living
accommodations  and is expected  to be upgraded  in 1998 to  include a derrick
floor and  ancillary workover  equipment.  The  "IOLAIR" is currently  under a
long-term contract with BP Exploration  Operating Company Limited and has been
since  its  purchase.    Also  in September  1995,  the Company  purchased the
second-generation semisubmersible  drilling  unit "J.W.  McLEAN".    Following
major  upgrades in 1996  and early  1997, the "J.  W. McLEAN"  will commence a
nineteen  month  drilling  contract with  Statoil.    In  connection with  the
purchase  of the  "J.W. McLEAN"  the Company  issued 1,232,057  shares of  the
Company's   common  stock,  par  value  $.05  per  share  and  filed  a  shelf
registration  statement in  September 1995  registering such  1,232,057 shares
(see "Shelf Registration" below).

Purchase of Oil & Gas Interests

      In  October  1995,  the  Company purchased  an  approximate  20% working
interest in  the Green Canyon 254 Allegheny oil and gas development project in
the  U.S. Gulf of  Mexico from the  operator, Enserch.    Mobil  Exploration &
Producing Inc., an affiliate of Mobil  Corporation, has a 40% working interest
in the  project.  Enserch retained  the remaining 40% working  interest. As of
December 31, 1996, the Company had accumulated  costs related to its ownership
in such  project of approximately $36.8 million which are included in Property
and    Equipment,   Other.   Originally,    the   Company's   third-generation
semisubmersible, the  "M.G. HULME,  JR.",  had been  contracted to  drill  the
development wells,  however  at the  Company's request,  Enserch released  the
"M.G.  HULME,  JR."  from its  contract  and  "RIG 41",  which  was originally
available  to  be converted to an FPV for the project, has now been contracted
by  Enserch as a drilling unit and may be used to drill the development wells.
In addition,  the  working interest  owners have purchased a second-generation
semisubmersible rig for possible use in the FPV conversion project.

      In July 1996, the Company entered into  an agreement with Shell Offshore
Inc.  to drill  an appraisal  well at  the Company's  expense in  Shell's East
Boomvang prospect in the U.S.  Gulf of Mexico, and if the results are positive
the Company will earn a  working interest and proceed with the  development of
the field.   The estimated cost  to drill the appraisal  well is approximately
$8.6  million,  and  the  Company  currently  expects   to  complete  drilling
operations  in  early  1997.    The Company  is  currently  assessing  further
development of the field.

      In December  1996, the Company entered  into an agreement with  Santa Fe
Energy Resources  ("Santa Fe Energy") to explore five oil and gas prospects in
the U.S. Gulf of Mexico in water depths ranging from 400 to 2,400 feet.  Santa
Fe Energy  will operate the properties  for the partners and  has contracted a
drilling unit not owned  by the Company to begin  the drilling program in  the
Spring of 1997.  As  of December 31, 1996,  the Company had accumulated  costs
related to its ownership in such project of approximately  $13.2 million which
are included in Property and Equipment, Other.

      Funding for the oil and  gas projects mentioned above is expected  to be
provided through a combination of working capital and project financing. 

      Investments  in oil and  gas interests as  of December 31,  1996 are not
material to total assets.  However, depending on prices,  reserve developments
and  accounting  policies  adopted,  the  Company  could experience  a  future
impairment charge.

Sale of Jack-Up

      In  April 1996,  the Company  sold its  mat-supported   jack-up drilling
unit, the "D.  K. McINTOSH", for $8.5 million in cash and recognized a gain on
the sale in 1996 of approximately $3.8 million.  The gain appears as an offset
to Operating Expenses in the Consolidated Statement of Operations.

Arcade Acquisition

      In  June 1994, the  Company completed a  transaction which increased its
direct  ownership in  Arcade  Drilling AS  ("Drilling")  and sold  its  entire
ownership in  Arcade Shipping AS  ("Shipping").  The transaction  consisted of
the Company  selling its entire 82.6% ownership  in Shipping for approximately
$27.8 million, purchasing from Shipping its entire 46.2% ownership in Drilling
and equity  securities  in Dragon  Oil  for  approximately $45.4  million  and
Shipping repaying  a loan of approximately $12.9 million to the Company.  This
transaction resulted in a net cash outflow of $4.7 million.  Also in September
1994, the  Company  purchased an  additional  5.7% of  Drilling's  outstanding
shares  pursuant to a  mandatory tender offer  in Norway required  by the Oslo
Stock  Exchange.   In  December  1995,  the management  agreement  for  one of
Drilling's  drilling units expired and in October 1996 the modified management
agreement  for Drilling's other  drilling unit ended  and a  subsidiary of the
Company  now manages  both drilling  units.   See "The Company's  Fleet" under
Items  1 and 2.   As of December  31, 1996, the  Company's direct ownership in
Drilling was 74.4%.  See Note B of Notes to Consolidated Financial Statements.

Sale/Lease-back of Drilling Units

      In November 1995, the Company entered  into a sale/lease-back of the "M.
G. HULME, JR.".  As  part of this transaction the Company agreed  to lease the
drilling  unit for  ten years  and could receive  up to  $60 million  in cash,
inclusive of a $10 million funding provision for upgrades.  As of December 31,
1996, the Company had received $58.9 million.  The lease-back is accounted for
as an operating lease and  a deferred gain of $7.4 million was recorded and is
being amortized over the life of the lease.  In addition, the lease contains a
provision which  allows the Company to repurchase the drilling unit at the end
of the lease for  a fair market  price.  See Note  E of Notes to  Consolidated
Financial Statements.

      In March 1992, the Company entered  into a sale/lease-back of the "SONNY
VOSS".  Proceeds received of $27.7 million resulted in a gain of  $6.3 million
which was deferred and was  being amortized over the lease term.   In December
1994,  for a fee of $.5 million,  the Company negotiated an early release from
all of   its remaining   lease obligations  with respect to  the "SONNY VOSS".
Such lease obligations  were scheduled to have  expired in September  1995 and
the net effect of the early release on the Company's results of operations was
a gain of $.5  million recognized as a reduction of Operating  Expenses in the
fourth quarter  of  1994.   See  Note E  of  Notes to  Consolidated  Financial
Statements.

Purchase of Lease Debt

      In the  third quarter of 1994,  the Company purchased  certain notes and
interests relating to the lease debt outstanding associated with the operating
leases of the drilling units "GEORGE H. GALLOWAY" and "C.E. THORNTON", and the
secured contingent obligations associated with  the capital lease of the "F.G.
McCLINTOCK".  Total consideration for  the transaction was approximately $36.5
million  which consisted  of the  Company paying  cash of  approximately $12.2
million and issuing 4,230,235 shares of  the Company's common stock, par value
$.05 per share, totalling approximately $24.3 million at then prevailing stock
prices.  In  October 1994, the Company filed a  shelf registration registering
such shares  (see "Shelf Registration" below).   The Company now  has title to
the "GEORGE H. GALLOWAY"and "F. G. McCLINTOCK" and expects to acquire title to
the  "C. E. THORNTON"  in March  1997.   See Note E  of Notes  to Consolidated
Financial Statements.

Merger Proposals

      On  February 28,  1995, the Company  announced that  it had  received an
unsolicited  merger  proposal  from  Sonat  Offshore  Drilling  Inc.   ("Sonat
Offshore") providing  for the acquisition of  100% of the common  stock of the
Company for a combination of  Sonat Offshore common stock and $100  million in
cash.  As proposed  by Sonat Offshore, the Company's  shareholders would have,
at their election,  received either (i) .357  shares of Sonat Offshore  common
stock or  (ii) $7.50 of  cash for each  share of the Company.    On  March 16,
1995, the Company announced that its board of directors had rejected the Sonat
Offshore  proposal on the basis that  it was not in the  best interests of the
Company and  its shareholders.   On April 18,  1995, Sonat  Offshore announced
that the  merger discussions  had broken  off following  the rejection by  the
Company  of Sonat  Offshore's proposal.   The Company  responded the  same day
announcing  that  discussions  with  Sonat  Offshore  had  not  to  that  date
demonstrated  a  willingness  on the  part  of Sonat  Offshore  to  consider a
transaction  that would be reflective of  the short-term or long-term business
prospects  and value  of the  Company.  Subsequent  to their  announcing their
intent  to break  off  discussions in  April  1995, Sonat  Offshore  initiated
additional   discussions  in  May   1995  with  regard   to  potential  merger
transactions.  However, these subsequent discussions similarly  did not result
in  terms that  recognized the  Company's  current or  long-term  value.   The
Company and Sonat Offshore discontinued discussions in June 1995.

      On May 3, 1996,  the Company announced  that it had  made a proposal  to
Transocean  Offshore ASA  ("Transocean") regarding  a  combination of  the two
companies  in a  transaction  that would  have entitled  each  of Transocean's
shareholders to  receive 1.245 shares of  the Company's common stock  for each
share of Transocean common stock.  Sonat Offshore had also announced that they
had made a proposal to combine with Transocean.  On May 7, 1996,  the proposal
was revised  to entitle  each  of Transocean's  shareholders to  receive  1.28
shares of  the Company's common  stock for  each share of  Transocean   common
stock. However, on June 4,  1996, the Company announced it was  suspending its
efforts to  pursue a business  combination with Transocean unless  it could be
done on  terms that were clearly beneficial to the Company's shareholders.  In
September 1996, Sonat  Offshore completed a  business combination  transaction
with Transocean.  The combined entity is now called Transocean Offshore Inc.

       The Company remains willing to engage in discussions regarding possible
business  combinations  that  would  potentially  strengthen  its  competitive
position  in  the  offshore   drilling  industry,  appropriately  reflect  the
underlying value of the Company and maximize shareholder value.

Preferred Stock

      In  July  1993,  the  Company  effected  a  public  offering  (the "1993
Offering")  of 2,990,000  shares of  $1.625  Convertible Preferred  Stock, par
value $1.00 per  share (the "Preferred Stock"), pursuant to  which the Company
raised gross proceeds  of approximately $74.7 million in  cash.  The Preferred
Stock was  convertible at the option of the holder  at any time into shares of
the Company's  common stock at  a conversion  rate of 2.899  shares of  common
stock for each share of  Preferred Stock (equivalent to a conversion  price of
$8.625 per  share of Common Stock),  subject to adjustment  in certain events.
Annual  dividends  were  $1.625 per  share  and  were  cumulative and  payable
quarterly commencing September 30, 1993. The Preferred Stock was redeemable at
any time on and  after September 30,  1996, at the option  of the Company,  in
whole or in  part, at a redemption price of $26.1375 per share, and thereafter
at  prices  decreasing ratably  annually  to $25.00  per  share  on and  after
September 30,  2003, plus accrued and  unpaid dividends.  The  Preferred Stock
had a  liquidation preference  of $25.00 per  share, plus  accrued and  unpaid
dividends.  On August 5, 1996, the  Company announced it would  redeem all  of
the  outstanding shares of  its Preferred Stock  on September 30,  1996 at the
redemption  price  of  $26.1375 per  share.    However,  the  majority of  the
Preferred  Stock  outstanding was  converted  into  approximately 8.6  million
shares  of the Company's common stock  on or before September  30, 1996 and on
September 30, 1996  approximately 1,041 shares  were redeemed by  the Company.
The  Company  declared  and paid  all  cumulative  dividends  accrued  on  the
Preferred Stock through September 30, 1996. 

Shelf Registration

      In October 1994, the Company filed a  shelf registration registering the
4,230,235 shares  of the Company's common stock issued for the purchase of the
leased rigs as discussed above.  In September 1995,  the Company filed a shelf
registration  registering the 1,232,057  shares of the  Company's common stock
issued for  the purchase of the  "J. W. McLEAN", as  previously discussed, and
the  Company  has been  informed  that  all of  such  shares  have been  sold.
Pursuant to the terms  of the registration rights agreements among the Company
and certain  other holders  of  the Company's  common stock,  as currently  in
effect,  the Company  was required  to  maintain continuously  effective shelf
registration  statements with respect  to approximately 2.5  million shares of
its common stock until the earlier to occur of (i)  the sale of such shares by
the holders thereof  or (ii) August 1, 1996  (in the case of  approximately .9
million  shares)  or September  14,  1996 (in  the case  of  approximately 1.6
million shares).   The Company currently  maintains the effectiveness  of such
registration statements on a voluntary basis.

Preferred Share Rights Agreement

      On March 15, 1995, the Company's board of directors declared  a dividend
of one preferred  share purchase right (a "Right") for  each outstanding share
of  the Company's  common stock  outstanding  on March  31, 1995  (the "Record
Date").   Each  Right  entitles the  registered holder  to  purchase from  the
Company  one  one-hundredth  of  a  share of  Series  B  Junior  Participating
Preferred Stock, par  value $1.00 per  share (the  "Preferred Shares") of  the
Company at  a price  of $30.50, subject  to adjustment.   The Rights  will not
become exercisable  until 10 days after a public announcement that a person or
group has acquired 10% or more of the Company's common stock (thereby becoming
an "Acquiring  Person") or the commencement of a tender or exchange offer upon
consummation of  which  such person  or group  would own  10% or  more of  the
Company's   common  stock  (the  earlier  of   such  dates  being  called  the
"Distribution Date").  Rights will  be issued for all shares of  the Company's
common  stock  issued  and  outstanding  on  the  Record  Date.    Until   the
Distribution  Date,  the   Rights  will  be  evidenced  by   the  certificates
representing the Company's  common stock and  will be transferrable  only with
the Company's common stock.  In the  event that any person or group becomes an
Acquiring  Person, each  Right, other  than Rights  beneficially owned  by the
Acquiring  Person (which will thereafter be void), will thereafter entitle its
holder to  purchase shares of the Company's common stock having a market value
of two times the  exercise price of the Right.  After any  person or group has
become an  Acquiring Person and  prior to  the acquisition by  such person  or
group of 50% or more of the outstanding shares of common stock,  the Company's
board of directors may exchange each Right (other than Rights of the Acquiring
Person), in whole or in part, at an exchange ratio of one common  share or one
one-hundredth of a  Preferred Share per Right.  If after a person or group has
become  an Acquiring  Person, the  Company is  acquired in  a merger  or other
business combination transaction or 50% or more of its assets or earning power
are  sold, each Right will entitle its holder to purchase, at the Right's then
current exercise price, that number of shares of common stock of the acquiring
company  which at the time of such transaction will have a market value of two
times the exercise price of the Right.  The  board of directors of the Company
may redeem the Rights in whole, but not  in part, at a price of $.01 per Right
at any time  prior to such  time as any person  or group becomes  an Acquiring
Person.   The Rights expire on  March 31, 2005.   Preferred Shares purchasable
upon exercise  of the Rights will not be redeemable. Each Preferred Share will
be entitled to a preferential quarterly  dividend payment equal to the greater
of  $1  per  share  or  100 times  the  dividend  declared  per  common share.
Liquidation preference will  be equal to the greater of $100  per share or 100
times the  payment made per common  share. Each Preferred Share  will have one
vote, voting  together  with the  common stock.   See  "LIQUIDITY AND  CAPITAL
RESOURCES".

Reverse Stock Split

      On October 2,  1992, the Company  effected a one-for-five  reverse stock
split  of the  common  stock.   All  share  and per  share  amounts have  been
restated.

Miscellaneous

      In  March 1995,  Statement of  Financial  Accounting Standards  No. 121,
Accounting for the Impairment of  Long-Lived Assets and for Long-Lived  Assets
to be  Disposed of ("SFAS 121") was issued.   SFAS 121, which became effective
in 1996,  requires that certain  long-lived assets be reviewed  for impairment
whenever  events indicate  that the  carrying amount  of an  asset may  not be
recoverable,  and  that  an  impairment   loss  be  recognized  under  certain
circumstances in the amount by which the carrying value exceeds the fair value
of the asset.   In 1995, the Company adopted  SFAS 121 which had no  effect on
the  Company's consolidated  results of  operations or  consolidated financial
position.  See Note A of Notes to Consolidated Financial Statements.

      In October  1995, Statement of  Financial Accounting Standards  No. 123,
Accounting for  Stock Based  Compensation ("SFAS 123")  was issued.   SFAS 123
requires  either   recognition  of  compensation  expense   in  the  financial
statements  for those  companies that  adopt the  fair value  based accounting
method or expanded disclosure of  pro forma net income and earnings  per share
information for those companies that retain the  current accounting method set
forth  in Accounting Principles Board  (APB) Opinion 25,  Accounting for Stock
Issued to Employees.  The  Company follows the accounting method set  forth in
APB 25  and in 1996 included the expanded disclosure requirements.  See Note A
and I of Notes to Consolidated Financial Statements.

      In  February 1997, the  fourth-generation semisubmersible  drilling unit
"JACK  BATES"  sustained  substantial  damage  when  it  struck  an  uncharted
underwater  obstruction while  under tow  into  the port  of Brindisi,  Italy,
resulting in  the loss  of the forward  port thruster and  damages to  the aft
starboard thruster  and underside of  the pontoons.    The  unit had  recently
completed a drilling contract offshore Albania and was being towed to Brindisi
to discharge equipment  in preparation  for continuing its  mobilization to  a
North Sea  shipyard for planned  upgrades to  the unit prior  to commencing  a
fifteen month contract  in the North Sea area.    Preparations are underway to
complete  temporary repairs to  enable the  unit to  be towed  to a  North Sea
shipyard for the  planned upgrade and  completion of  permanent repairs.   The
Company believes the physical damage  and any business interruption  sustained
as a result of this incident are adequately covered by insurance.

      For a discussion of certain legal proceedings see Part I, Item 3.

                        LIQUIDITY AND CAPITAL RESOURCES

Liquidity

      At December  31, 1996, the  Company had  working capital of  $85 million
compared to $41.3 million at December 31, 1995.  The $43.7 million increase is
primarily due to improved cash flow from operating activities.

      Cash  provided by operating  activities during  1996 amounted  to $102.9
million,  an increase of $68.4 million from  1995.  Cash provided by operating
activities during 1995 amounted to approximately $34.5 million, an increase of
$3.7 million from 1994.

      Cash used in investing activities was $169.2 million in 1996 compared to
$3.5  million in 1995  and $48.8  million in 1994.   During 1996,  the Company
purchased  $177.1 million in property  and equipment which consisted primarily
of the purchase  of the "SEILLEAN" for   $42.2 million, major  upgrades to the
"JIM  CUNNINGHAM",  "J.W.  McLEAN"  and   the  "M.G.  HULME,  JR."   totalling
approximately  $79.8 million  and approximately  $27 million  for oil  and gas
interests.    Also during  1996,  the  Company sold  the  "D.K. McINTOSH"  and
received  $8.5  million in  cash.   During 1995,  the  Company entered  into a
sale/lease-back  transaction  of  the "M.G.  HULME,  JR."  drilling unit  that
provided approximately $50 million of cash and used $51.9  million to purchase
property and equipment, such  as the oil and gas interest in  the U.S. Gulf of
Mexico as previously discussed.   During 1994, the Company used  $10.7 million
to purchase  additional  shares in  Drilling  and  $38.4 million  to  purchase
property and  equipment, such as the  purchase of certain notes  and interests
relating to the lease debt outstanding associated with the operating leases of
the drilling units  "GEORGE H. GALLOWAY" and "C. E.  THORNTON" and the secured
contingent obligations associated with the capital lease  of the drilling unit
"F. G. McCLINTOCK", and the purchase  of the second-generation semisubmersible
drilling unit "RIG 41".

      Cash provided by financing activities was $89.2 million in 1996 compared
to cash used in financing  activities of $37.1 million in 1995 and $20 million
in 1994.  During 1996, the Company received net proceeds  of $146 million from
its  revolving credit facility and $6.4 million  from the exercise of employee
stock options, made principal payments of $54.5 million, made distributions of
$5.1 million  to  the  minority  shareholders  of  consolidated  subsidiaries,
primarily Drilling,  and  paid  Preferred  Stock dividends  of  $3.6  million.
During  1995, the Company made  principal payments of  $85.3 million which was
primarily  the  repayment  of   the  ING  Facility  and  the   8%  Convertible
Subordinated Debentures which matured in  1995, paid Preferred Stock dividends
of $4.9 million and received $50 million from two new financing sources and $3
million from the exercise of employee stock options.  During 1994, the Company
made  principal payments of $24.6  million, paid Preferred  Stock dividends of
$4.9 million and received $9.5 million from the ING Facility.  

      Liquidity   of  the  Company  should  be  considered  in  light  of  the
fluctuations in demand experienced  by drilling contractors as changes  in oil
and gas producers'  expectations and  budgets occur.   These fluctuations  can
impact  the Company's liquidity as  supply and demand  factors directly affect
utilization and dayrates, which are the primary determinants of cash flow from
the Company's operations.  The Company's management currently expects that its
cash flow from operations,  in combination with cash on hand,  funds available
under  its  existing credit  facility (see  "CBK  Facility" below),  and other
sources,  including new  debt, new  equity, asset  disposals and/or  by proper
scheduling of its planned capital or other expenditures, will be sufficient to
satisfy the Company's short-term and long-term working capital needs,  planned
investments, capital expenditures, debt and other payment obligations.  

      At December 31, 1996, approximately $20.1 million  of total consolidated
cash  and cash equivalents of $59.1 million were restricted from the Company's
use outside of  Drilling's activities.   See "Drilling"  below regarding  such
restrictions.

      Based on  current estimates, management  believes that the  Company will
possibly  fully utilize its existing net operating loss carryforwards by early
1998.   If so, at such  time the Company will begin  recording income taxes at
the applicable statutory rate.

Capital Expenditures and Deferred Charges

      Planned   capital   expenditures   and   deferred   charges   (including
mobilization,  demobilization and  contract preparation costs  not recoverable
from the  Company's customers or  claim proceeds from  insurance underwriters)
for 1997 are  expected to aggregate in excess of   $151    million principally
for upgrades or replacement  of equipment either to fulfill  obligations under
existing contracts or to improve the marketability of certain of the Company's
drilling  units and for mobilization  of the Company's  drilling units between
drilling sites.  Additionally, the Company has capital funding obligations for
its participation in the previously discussed oil and gas development projects
estimated to be in excess  of  $69  million for 1997.  The Company anticipates
that  such  capital  expenditures will  be  funded  through  cash provided  by
operations, its  existing  credit  facility  and/or new  financing.    Certain
additional projects currently  being considered by the Company  would require,
if  they  materialize, capital  expenditures  or other  cash  requirements not
included  in the above estimate.  In addition to  planned capital expenditures
referred to  above, the Company  will also continue to  review acquisitions of
drilling units from time to time and will also consider further investments in
floating production equipment.  See "Item 1.  Business - Business Strategy".

CBK Facility

      In November 1995, the  Company entered into a credit  facility agreement
with Christiania  Bank og  Kreditkasse  (the "CBK  Facility") as  agent for  a
syndicate  of banks (including  itself).  During  1996, the CBK  Facility  was
renegotiated  with an  expanded bank  group and  currently consists of  a $300
million  reducing revolving credit facility to be utilized for revolving loans
and/or issuance  of standby letters  of credit  (subject to a  maximum of  $30
million).   The  CBK  Facility shall  be  reduced/repaid by  five  semi-annual
installments  of  $25   million  commencing   in  May  1999   and  one   final
reduction/repayment of $175  million in  November 2001 and  bears interest  at
the London Interbank Offered Rate ("LIBOR") (5.625% at December 31, 1996) plus
 .85%.  In addition, a fee of .85% per annum is paid on outstanding  letters of
credit and a commitment fee of .35% per annum is paid on the unused portion of
the CBK  Facility.    At December 31,  1996, there were  no letters  of credit
outstanding  under  the  CBK  Facility, leaving  $134  million  available  for
revolving loans and/or issuance of standby  letters of credit (maximum of  $30
million).   The CBK Facility contains  covenants which require the  Company to
meet certain ratios and  working capital conditions, and is  collateralized by
vessel  mortgages on  thirteen  of the  drilling units  owned by  the Company,
related assignments of insurance  and earnings, and a pledge  of the Company's
shares  of stock  of Drilling.    In addition,  in December  1996 the  Company
entered   into  a  separate  $20  million  letter  of  credit  agreement  with
Christiania Bank og Kreditkasse. Under the agreement, a fee of 1.25% and .375%
per annum  is paid on  the outstanding and  unused amounts, respectively.   At
December 31, 1996, $1.7 million was available under such agreement.  See Notes
C and E of Notes to Consolidated Financial Statements.

Drilling

      As of December 31, 1996, Drilling  had a $32.5 million term loan payable
to The Chase Manhattan Bank, N.A. as agent for a syndicate of banks (including
itself).  The adjusted payment terms of this bank obligation currently provide
for  repayment of principal in  17 semiannual installments  which commenced in
August  1991 and bears  interest at LIBOR  (5.625% at December  31, 1996) plus
 .45%.  The Company has not guaranteed repayment of such  obligation.  Drilling
had also  entered into an interest  rate swap agreement which  ended in August
1996.  The loan is  collateralized by the drilling units "HENRY  GOODRICH" and
"PAUL B. LOYD,  JR.".  The  loan agreement was  amended in October  1996 which
resulted in  less  restrictive financial condition requirements.   The amended
loan agreement requires  Drilling to maintain liquid  assets of at least  $1.5
million  ($10 million  if  Drilling can  not annually  provide to  the lenders
satisfactory contractual commitments for the employment of both drilling units
for the  next  twelve months)  and   imposes  the  following covenants:    (i)
prohibits Drilling from making loans, granting credit, giving any guarantee or
indemnity to or for the benefit of any other person  or assuming any liability
with  respect to any  obligation of any other  person, (ii) prohibits Drilling
from  engaging  in  any  merger  or  consolidation  and  (iii)  prohibits  the
encumbrance of Drilling's assets or the sale of such assets other than at fair
market value,  in each case  without the  prior written consent  of the  banks
party to the loan agreement holding a majority of the outstanding balance.  In
addition, the amended loan  agreement allows Drilling to declare  dividends or
distributions to stockholders provided that at least one of the drilling units
is  employed pursuant to its current contract  with no notice of  cancellation
received and  $1.5 million  of  liquid assets  remain  after payment  of  such
distribution.  With the consent of the banks, Drilling declared a distribution
of  approximately $14.3  million in the  first quarter  of 1996,  of which the
Company received approximately $10.6 million.   It is also an event of default
should circumstances arise which give reasonable grounds in the opinion of the
bank syndicate for  the belief  that Drilling may  not (or may  be unable  to)
perform or comply with its obligation.  Drilling expects to meet its repayment
obligations under the facility through cash flow generated from operations and
current working capital.  At December 31, 1996, Drilling held $20.1 million in
cash and cash equivalents available to satisfy such obligations, but otherwise
subject to the restrictions  on use of such cash and  cash equivalents set out
in such amended loan agreement. See  Note C of Notes to Consolidated Financial
Statements.  

NIC Financing

      In December 1996, a wholly owned subsidiary of the Company  entered into
a five  year $38 million loan  agreement with Nissho Iwai  Europe PLC ("NIC").
The Company expects to receive the funds in the first quarter of 1997, subject
to the finalization  of the agreement.  The loan will  be collateralized by  a
vessel mortgage on  the "SEILLEAN" without recourse  to the Company and  shall
bear interest at LIBOR plus 2%.  Principal repayments will be monthly based on
the  greater of  the excess  cash flow  of the  "SEILLEAN" or  the outstanding
principal balance divided  by the remaining period of the  loan.  In addition,
NIC has the option to purchase up  to 10% of the ownership in the  "SEILLEAN",
any time prior to  three years after the  Company has received the funds  from
NIC, at a minimum price of $4.2 million.  See Note E of Notes  to Consolidated
Financial Statements.

ING Facility

      The Company's previous principal credit facility agreement with ING Bank
(the "ING Facility") was fully repaid  in November 1995 from funds provided by
the CBK Facility and the sale/lease-back of the "M. G. HULME, JR.".  

CIT Financing

      In May 1995, the Company entered into a $25 million  loan agreement with
The  CIT  Group/Equipment  Financing, Inc.    In  December  1995, the  Company
borrowed  an additional  $5 million  under such loan  agreement.   In November
1996, the loan was repaid in full from proceeds of the CBK Facility.  The loan
bore interest at  the one month LIBOR   plus 2.5%.   Principal repayments were
$5,416,667 in November  1996, 34  monthly installments  of   $416,667 to  have
commenced in  December 1996 and  one payment of  $10,416,655 in  October 1999.
The  loan agreement  contained covenants  which required  the Company  to meet
certain  financial conditions, including,  among others, a  cash flow coverage
ratio and  a long-term debt to  total assets ratio, and  was collateralized by
vessel mortgages on two of the drilling units owned by the Company and related
assignments of insurance and earnings. 

                             RESULTS OF OPERATIONS

      The Company reported  net income for  1996 of  $77.9 million ($1.15  net
income per share after preferred stock dividends of $3.6  million) compared to
net  income of $21.8  million ($.28 earnings  per share after  preferred stock
dividends of $4.9 million) for 1995 and a net loss of $17.1 million ($.39 loss
per share after preferred stock dividends of $4.9 million) for 1994.  Included
in the 1995 results  is an extraordinary gain of  $3.4 million related to  the
extinguishment of a debt obligation.

                                             Years Ended December 31,    
                                         ---------------------------------
                                            1996        1995       1994  
                                         ---------   ---------   ---------
Operating Revenues (in thousands) . . .  $ 290,223   $ 212,795   $ 169,058
                                         =========   =========   =========

      Operating revenues are primarily a function of dayrates and utilization.
The $77.4 million increase  in 1996 as  compared to 1995  is primarily due  to
increased    dayrates   for   the   fourth-generation   and   third-generation
semisubmersible fleets and the jack-up fleet and the addition of the "IOLAIR",
the "J.  W.  McLEAN" and  the  "SEILLEAN" to  the fleet.    The $43.7  million
increase in  1995  over  1994  is  primarily due  to  increased  dayrates  and
utilization of the fourth-generation semisubmersible and jack-up fleets.

      The Company's  unit utilization measured in terms  of the number of days
the units were earning revenues to the total days the units were available for
service (the operating method) for the years ended December 31, 1996, 1995 and
1994 is shown below by class:
                                                    Years Ended
         Unit Utilization                           December 31,       
         ----------------                       --------------------
                                                1996    1995    1994
                                                ----    ----    ----  
      Fourth-Generation Semisubmersibles  .     100%     97%     76%
      Third-Generation Semisubmersibles . .      85%     85%     85%
      Other Semisubmersibles  . . . . . . .      80%      -       -
      Jack-Ups  . . . . . . . . . . . . . .      93%     84%     69%
      Drilling Tenders  . . . . . . . . . .      86%     76%    100%
      Floating Production Vessel  . . . . .     100%      -       -
      Total Fleet . . . . . . . . . . . . .      92%     85%     75%

      The  utilization  trends  experienced  by  the  Company  are   generally
consistent with those experienced by the industry.

      Average  dayrates for the Company's  units for the  years ended December
31, 1996, 1995 and 1994 are shown below by class (in thousands):

                                                   Years Ended
         Average Dayrates                          December 31,       
         ----------------                      ----------------------
                                                1996    1995    1994  
                                               ------  ------  ------
      Fourth-Generation Semisubmersibles  .    $ 91.3  $ 64.9  $ 59.2
      Third-Generation Semisubmersibles . .      58.4    39.6    32.7
      Other Semisubmersibles  . . . . . . .      67.4      -       -   
      Jack-Ups  . . . . . . . . . . . . . .      30.3    27.8    24.4
      Drilling Tenders  . . . . . . . . . .      22.2    28.1    29.4
      Floating Production Vessel  . . . . .      76.4      -       -   
      Total Fleet . . . . . . . . . . . . .      47.0    36.7    32.0


                                              Year Ended December 31,
                                          -------------------------------
                                             1996       1995       1994
                                          ---------  ---------  ---------
      Operating Expenses (in thousands) . $ 126,708  $ 127,070  $ 122,981
                                          =========  =========  =========
      Operating Expenses as Percentage
        of Revenues . . . . . . . . . . .     43.7%      59.7%      72.7%
                                          =========  =========  =========

      Operating expenses do not necessarily fluctuate in proportion to changes
in  operating  revenues due  to the  continuation  of personnel  on  board and
equipment maintenance when the Company's units are stacked.  It is only during
prolonged stacked periods  that the  Company is significantly  able to  reduce
labor  costs  and equipment  maintenance expense.   Additionally,  labor costs
fluctuate due to the geographic diversification of the Company's units and the
mix of labor between expatriates and nationals as stipulated in the contracts.
In general,  labor costs  increase  primarily  due to higher salary levels and
inflation.  Equipment  maintenance expenses fluctuate depending  upon the type
of activity the unit is performing and the age and condition of the equipment.
Scheduled  maintenance of equipment and overhauls  are performed on a basis of
number  of   hours  operated  in  accordance  with  the  Company's  preventive
maintenance  program.  Operating expenses  for an offshore  unit are typically
deferred  or  capitalized  as  appropriate  during  periods  of  mobilization,
contract  preparation, major  upgrades  or  conversions  unless  corresponding
mobilization  revenue is recognized, in which case such operating expenses are
expensed as incurred.

      Operating expenses decreased  by $.4 million in 1996 as compared to 1995
despite increases in  operating expenses in  1996 due to  the addition of  the
"IOLAIR", the  "J. W. McLEAN"  and the "SEILLEAN"  to the fleet  and increased
lease  expense associated with the sale/lease-back  of the "M. G. HULME, JR.".
The  decrease is primarily  due to   reduced expenses associated  with several
drilling units.   In particular, operating  expenses for the  "D. K. McINTOSH"
decreased as a result of the recognition of a $3.8 million gain on the sale of
the  rig.   The "HARVEY H.  WARD" incurred  reduced operating  expenses due to
operations in India for the majority  of 1996 as compared with 1995 operations
primarily occurring in Australia, a relatively more  expensive operating area.
The "M. G.  HULME, JR." incurred  reduced operating expenses  due to the  1996
capitalization  of expenses  during a  major upgrade  period and the  "PAUL B.
LOYD, JR." incurred reduced  operating expenses primarily due to  the December
1995  expiration of  the management  contract previously  held by   Transocean
Offshore  Inc.  (as  successor to  Sonat  Offshore)  that  is  now held  by  a
subsidiary of the Company.

      Operating expenses as  a percentage  of revenues decreased  by 16.0%  in
1996 compared  to 1995 due mainly  to increased revenues in  1996.  Currently,
management expects operating expenses  as a percentage of revenue  to continue
to decrease over  the next two  years.  Although management  currently expects
operating  expenses to rise during  this period due  to higher operating costs
and the  addition of mobile offshore  units to the fleet,   operating revenues
are currently expected to  rise at a faster rate due  to contracts with higher
dayrates, some of which are already in place.

      Operating expenses increased  in 1995 as compared to  1994 due to higher
operating  costs for  several rigs  and the  addition of  the "IOLAIR"  to the
fleet.    This increase was  offset somewhat by lease  expense which decreased
between the two years due to the 1994 termination of the  lease for the "SONNY
VOSS"  and the elimination  of the "GEORGE  H. GALLOWAY" and  "C. E. THORNTON"
leases  due  to a  1994  purchase of  the  lease obligations  by  the Company.
Included  in operating  expenses for  1994 is a  credit of  approximately $3.1
million  due  to the  recognition  of  the  remaining  deferred  gain  on  the
sale/lease-back  of the "SONNY VOSS"  as the Company  was prematurely released
from its lease obligation.

                                             Years Ended December 31,
                                           ----------------------------
                                             1996      1995      1994
                                           --------  --------  --------
      Depreciation (in thousands) . . . .  $ 33,584  $ 30,369  $ 28,909
                                           ========  ========  ========

      Depreciation expense increased  $3.2 million  in 1996  compared to  1995
primarily due to  the addition  of the "IOLAIR",  the "J. W.  McLEAN" and  the
"SEILLEAN" to  the fleet  and a  significant  increase in  gross property  and
equipment on  the "JIM  CUNNINGHAM"  related   to major  upgrades.   This  was
partially offset by a decrease in depreciation on the   "M. G. HULME, JR." due
to the sale/lease-back of the drilling unit in 1996.

      Depreciation expense increased $1.5 million in 1995 compared to 1994 due
to increased utilization of the fleet.

                                             Years Ended December 31,   
                                           ----------------------------
                                             1996      1995      1994
                                           --------  --------  --------
      General and Administrative
         Expenses (in thousands) . . . .   $ 22,579  $ 17,139  $ 17,993
                                           ========  ========  ========

             General  and  administrative expenses  increased $5.4  million in
1996  compared to  1995  primarily due  to  increases in  payroll and  related
expenses  associated with employee incentive  plans and a  $2.2 million charge
related  to  severance  benefits  for  two  executives  whose  employment  was
terminated  during  1996.   See  Note  E  of Notes  to  Consolidated Financial
Statements.
 
      General and  administrative  expenses  decreased  $.9  million  in  1995
compared to  1994 primarily related  to the reduction  of expenses for  Arcade
Drilling's office located in Oslo.

                                             Years Ended December 31,
                                           ----------------------------
                                             1996      1995      1994
                                           --------  --------  --------
      Interest Expense, net of interest
        capitalized (in thousands) . . .   $ 14,781  $ 15,303  $ 13,694
                                           ========  ========  ========

      The  decrease  in  interest expense  in  1996  as  compared  to 1995  is
primarily attributable to the  1996 capitalization of interest related  to oil
and  gas development  properties,  offset  by  a  $1.9  million  write-off  of
unamortized  financing expenses  due  to the  renegotiation  of the  Company's
revolving credit facility during 1996.  Noncash interest expense also includes
amortization  of  discount  and  deferrals  associated  with  the   8%  Senior
Subordinated Convertible Debentures due 1998 which for the year ended December
31, 1996 was $2.2 million.

      Despite  a decrease in  the average  principal debt  balance outstanding
during 1995  as compared  to  1994 due  to the  refinancing  of the  Company's
previous principal credit facility with ING Bank in the fourth quarter of 1995
as well  as the repayment  of scheduled  principal payments  on the  Company's
long-term obligations,  interest  expense  increased  by  $1.6  million.  This
increase  is primarily  attributable  to the  purchase  of certain  notes  and
interest  relating to  the lease  debt outstanding  for the  previously leased
rigs, "C.E. THORNTON"  and "GEORGE H.  GALLOWAY" in the  latter part of  1994.
Noncash  interest  expense  attributable  to  amortization  of  discount   and
deferrals associated with  the 8% Senior  Subordinated Convertible  Debentures
due 1998 and the  8% Convertible Subordinated Debentures which  were repaid in
the  fourth quarter  of   1995 for  the year  ended December  31, 1995  was $4
million.
       
                                             Years Ended December 31,   
                                           ----------------------------  
                                             1996      1995      1994
                                           --------  --------  --------
      Interest Income (in thousands) . . . $  2,185  $  1,832  $  3,263
                                           ========  ========  ========

      Interest  income increased  $.4  million in  1996  as compared  to  1995
primarily due  to  interest earned  on  an  increased average  cash  and  cash
equivalents balance.   Conversely, interest  income decreased $1.4  million in
1995 as compared to 1994  due to interest earned  on a decreased average  cash
and cash equivalents balance.   

                                             Years Ended December 31,   
                                           ---------------------------
                                             1996      1995      1994
                                           --------  --------  --------
      Other Income (Expenses),
         Net (in thousands) . . . . . . .  $ (2,272) $ (2,008) $ (2,647)
                                           ========  ========  ========

      For 1996, other, net  included $1.2 million of expenses  associated with
the  business combination discussions with Transocean and a $1 million expense
for  the change in the estimate of  the reserve for prior workers compensation
claims.

      For 1995, other, net  included $1.2 million of expenses  associated with
the business combination discussions with Sonat Offshore.

      For  1994, other, net  included the recognition  of a $1.2  million loss
associated with interests in the exploration  and production of oil and gas, a
$.8 million expense for  the change in the  estimate of the reserve  for prior
workers  compensation claims  and a  $.7 million loss  on the  sale of  a cash
investment due to the decline in the market value.

                                             Years Ended December 31,      
                                           ----------------------------
                                             1996      1995      1994
                                           --------  --------  --------
      Income Tax Expense (in thousands) .  $  7,884  $  2,824  $  4,093
                                           ========  ========  ========

      Income tax expense for 1996 increased as  compared to 1995 primarily due
to the increase in the Company's pretax income.

      Income  tax expense  for  1995 decreased  as  compared to  1994  despite
increases  in  revenues and  income before  income  taxes.   Such  decrease is
primarily  due to  a  change  in the  Company's  foreign  geographic areas  of
operations  coupled with the  resolution, in the  third quarter of  1995, of a
foreign tax assessment at less than expected cost.

      Income tax expense was recognized for  the year ended December 31,  1994
despite losses before  income taxes of $13.9 million.   This represents income
tax expense incurred with respect to certain foreign operations.

                                             Years Ended December 31,      
                                           ----------------------------
                                             1996      1995      1994
                                           --------  --------  --------
      Minority Interest (in thousands) .   $ (6,684) $ (1,522) $    850
                                           ========  ========  ========

      Minority interest  relates primarily to  the results of  Arcade Drilling
and  the  percentage  attributable  to stockholders  other  than  the Company.
Arcade Drilling reported income  in 1996 and 1995 of $26.3  and  $5.6 million,
respectively  and a  loss of  $3 million  in 1994.   The  ownership percentage
attributable to stockholders other than the Company was 25.6%, 25.7% and 26.1%
for the years ending December 31, 1996, 1995 and 1994, respectively.

      The impact of inflation on the Company's operations  for the three years
ended December 31, 1996 has not been material.

FORWARD LOOKING STATEMENTS AND ASSUMPTIONS

      This Annual Report on Form 10-K may  contain or incorporate by reference
certain forward-looking statements,  including by way of  illustration and not
of limitation,  statements relating to liquidity,  revenues, expenses, margins
and contract rates and terms.  The Company strongly encourages readers to note
that  some  or  all  of  the  assumptions,  upon  which  such  forward-looking
statements are based, are beyond the  Company's ability to control or estimate
precisely, and  may in some  cases be subject  to rapid and  material changes.
Such  assumptions include the contract status of the Company's offshore units,
general  market  conditions  prevailing  in  the  offshore  drilling  industry
(including daily rates and utilization) and various other trends affecting the
offshore drilling  industry, including world  oil prices, the  exploration and
development  programs of the Company's customers, the actions of the Company's
competitors and economic conditions generally.


Item 8.  Financial Statements and Supplementary Data

                 READING & BATES CORPORATION AND SUBSIDIARIES

                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To the Board of Directors and Stockholders
Reading & Bates Corporation

      We  have  audited the  accompanying  consolidated  balance sheets  of
Reading & Bates Corporation (a Delaware corporation) and Subsidiaries as of
December  31, 1996  and 1995,  and the  related consolidated  statements of
operations, cash flows and stockholders' equity for each of the three years
in the period ended December 31, 1996.  These financial statements  are the
responsibility  of  the Company's  management.   Our  responsibility  is to
express an opinion on these financial statements based on our audits.

      We  conducted  our  audits  in  accordance  with  generally  accepted
auditing standards.   Those standards require that  we plan and perform the
audit to obtain reasonable assurance about whether the financial statements
are free of material misstatement.  An audit includes examining,  on a test
basis, evidence supporting  the amounts  and disclosures  in the  financial
statements.   An audit  also includes  assessing the accounting  principles
used and significant  estimates made by management,  as well as  evaluating
the overall financial statement presentation.   We believe that our  audits
provide a reasonable basis for our opinion.

      In our opinion,  the financial statements  referred to above  present
fairly, in all  material respects, the  consolidated financial position  of
Reading  & Bates Corporation  and Subsidiaries as  of December 31, 1996 and
1995, and the consolidated results of their operations and their cash flows
for each of  the three years in  the  period  ended  December  31, 1996  in
conformity  with  generally  accepted  accounting  principles.



Arthur Andersen LLP

Houston, Texas
January 27, 1997

   
                           READING & BATES CORPORATION
                                 AND SUBSIDIARIES

                            CONSOLIDATED BALANCE SHEET
                            December 31, 1996 and 1995
                                  (in thousands)

                                                     1996        1995  
                                                  ---------   ---------
ASSETS

CURRENT ASSETS:
  Cash and cash equivalents                       $  59,089   $  36,171
  Accounts receivable:
   Trade, net                                        57,277      41,324
   Other                                              6,452       4,815
  Materials and supplies inventory                   13,369       8,911
  Other current assets                                3,903       4,567
                                                  ---------   ---------
   Total current assets                             140,090      95,788
                                                  ---------   ---------
PROPERTY AND EQUIPMENT:
  Drilling                                          896,609     756,147
  Other                                              57,640      29,898
                                                  ---------   ---------
   Total property and equipment                     954,249     786,045
  Accumulated depreciation                         (296,620)   (280,440)
                                                  ---------   ---------
   Net property and equipment                       657,629     505,605
                                                  ---------   ---------
DEFERRED CHARGES AND OTHER ASSETS                    10,471       4,387
                                                  ---------   ---------
TOTAL ASSETS                                      $ 808,190   $ 605,780
                                                  =========   =========

  The accompanying notes are an integral part of the consolidated financial
statements.


                            READING & BATES CORPORATION
                                  AND SUBSIDIARIES

                              CONSOLIDATED BALANCE SHEET
                              December 31, 1996 and 1995
                         (in thousands except share amounts)


                                                     1996        1995   
                                                  ---------   ---------
LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES:
  Short-term obligations                          $       -   $  12,000
  Long-term obligations due within
   one year                                          11,500      18,333
  Accounts payable - trade                           21,961       3,639
  Accrued liabilities                                21,671      20,518
                                                  ---------   ---------
    Total current liabilities                        55,132      54,490

LONG-TERM OBLIGATIONS                               207,578      95,040

OTHER NONCURRENT LIABILITIES                         52,091      51,718

DEFERRED INCOME TAXES                                   635       2,977
                                                  ---------   ---------
   Total liabilities                                315,436     204,225
                                                  ---------   ---------
COMMITMENTS AND CONTINGENCIES

MINORITY INTEREST                                    46,147      44,504
                                                  ---------   ---------
STOCKHOLDERS' EQUITY:
  $1.625 convertible preferred stock,
   $1.00 par value, 2,990,000 shares
   authorized, 2,985,000 shares issued
   and outstanding at December 31, 1995                   -       2,985
  Common stock, $.05 par value,
   425,000,000 shares authorized,
   71,887,896 shares and 61,900,408
   shares issued and outstanding at
   December 31, 1996 and 1995,
   respectively                                       3,594       3,095
  Capital in excess of par value                    389,907     362,910
  Retained earnings (deficit) from
   March 31, 1991                                    71,268      (3,017)
  Other                                             (18,162)     (8,922)
                                                  ---------   ---------
   Total stockholders' equity                       446,607     357,051
                                                  ---------   ---------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY        $ 808,190   $ 605,780
                                                  =========   =========


  The accompanying notes are an integral part of the consolidated financial
statements.


                           READING & BATES CORPORATION
                                AND SUBSIDIARIES

                     CONSOLIDATED STATEMENT OF OPERATIONS
                    (in thousands except per share amounts)

                                           Years Ended December 31,    
                                      ---------------------------------
                                         1996        1995       1994  
                                      ---------   ---------   ---------
OPERATING REVENUES                    $ 290,223   $ 212,795   $ 169,058
                                      ---------   ---------   ---------
COSTS AND EXPENSES:
  Operating expenses                    126,708     127,070     122,981
  Depreciation                           33,584      30,369      28,909
  General and administrative             22,579      17,139      17,993
                                      ---------   ---------   ---------
   Total costs and expenses             182,871     174,578     169,883
                                      ---------   ---------   ---------
OPERATING INCOME (LOSS)                 107,352      38,217        (825)
                                      ---------   ---------   ---------
OTHER INCOME (EXPENSE):
  Interest expense, net of
    interest capitalized                (14,781)    (15,303)    (13,694)
  Interest income                         2,185       1,832       3,263
  Other, net                             (2,272)     (2,008)     (2,647)
                                      ---------   ---------   ---------
Total other income (expense)            (14,868)    (15,479)    (13,078)
                                      ---------   ---------   ---------
INCOME (LOSS) BEFORE INCOME TAX
 EXPENSE, MINORITY INTEREST AND
 EXTRAORDINARY GAIN                      92,484      22,738     (13,903)

INCOME TAX EXPENSE                        7,884       2,824       4,093

MINORITY INTEREST                        (6,684)     (1,522)        850
                                      ---------   ---------   ---------
INCOME (LOSS) BEFORE EXTRAORDINARY
 GAIN                                    77,916      18,392     (17,146)
              
EXTRAORDINARY GAIN                            -       3,430           -
                                      ---------   ---------   ---------
NET INCOME (LOSS)                        77,916      21,822     (17,146)

DIVIDENDS ON PREFERRED STOCK              3,631       4,855       4,859
                                      ---------   ---------   ---------
NET INCOME (LOSS) APPLICABLE
 TO COMMON STOCKHOLDERS               $  74,285   $  16,967   $ (22,005)
                                      =========   =========   =========
PRIMARY NET INCOME (LOSS) PER
 COMMON SHARE:
  INCOME (LOSS) BEFORE
   EXTRAORDINARY GAIN                 $    1.15   $     .22   $    (.39)
  EXTRAORDINARY GAIN                          -         .06           -
                                      ---------   ---------   ---------
    NET INCOME (LOSS)                 $    1.15   $     .28   $    (.39)
                                      =========   =========   =========
FULLY DILUTED NET INCOME PER
 COMMON SHARE                         $    1.10   $       -   $       -
                                      =========   =========   =========
WEIGHTED AVERAGE COMMON
 SHARES OUTSTANDING:
   PRIMARY                               64,620      60,208      56,900
                                      =========   =========   =========
   FULLY DILUTED                         71,027           -           -
                                      =========   =========   =========


    The accompanying notes are an integral part of the consolidated financial
statements.



                           READING & BATES CORPORATION
                                 AND SUBSIDIARIES

                       CONSOLIDATED STATEMENT OF CASH FLOWS
                                  (in thousands)

                                               Years Ended December 31,  
                                          ---------------------------------
                                             1996        1995        1994
                                          ---------   ---------   ---------
CASH FLOWS FROM OPERATING
 ACTIVITIES:
   Net income (loss)                      $  77,916   $  21,822   $ (17,146)
   Adjustments to reconcile net income
    (loss) to net cash provided by
    operating activities:
      Depreciation                           33,584      30,369      28,909
      Loss (gain) on dispositions
       of property and equipment             (5,185)        650      (1,982)
      Recognition of deferred expenses        5,123       7,051       4,640
      Deferred compensation                   3,230         167         265
      Extraordinary gain from
       extinguishment of debt                     -      (3,430)          -
      Minority interest in income (loss)
       of consolidated subsidiaries           6,684       1,522        (850)
      Changes in assets and liabilities:
        Accounts receivable, net            (17,058)     (8,685)      2,973
        Materials and supplies inventory     (2,319)       (490)        288
        Deferred charges and other assets    (9,559)     (7,880)     (3,678)
        Accounts payable - trade              2,456      (8,759)      4,742 
        Accrued interest                      3,154       4,472       4,000
        Accrued lease expense                     -           -       3,344
        Accrued liabilities                     (72)      1,367       4,692
        Income taxes                          1,075         462       1,649
        Other, net                            3,897      (4,153)     (1,074)
                                          ---------   ---------   ---------
          Net cash provided by
           operating activities             102,926      34,485      30,772
                                          ---------   ---------   ---------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Dispositions of property
    and equipment                             9,169      49,946         141
   Purchases of property and equipment,
    net of noncash items                   (177,130)    (51,906)    (38,424)
   Decrease (increase) in investments
    in and advances to unconsolidated
    investees                                (1,243)       (310)        209
   Business acquisitions                          -      (1,229)    (10,738)
                                          ---------   ---------   ---------
         Net cash used in investing
           activities                      (169,204)     (3,499)    (48,812)
                                          ---------   ---------   --------- 
CASH FLOWS FROM FINANCING ACTIVITIES:
   Net proceeds (payments) from short-
    term obligations                        (12,000)    (12,222)      9,487
   Net proceeds from revolving
    credit facility                         146,000      20,000           -
   Proceeds from long-term obligations            -      30,000           -
   Principal payments on long-term
    obligations                             (42,500)    (73,057)    (24,654)
   Exercise of stock options                  6,446       3,000           -
   Dividends paid on preferred stock         (3,631)     (4,855)     (4,859)
   Distribution to minority shareholders
    of consolidated subsidiaries             (5,119)          -           -
                                          ---------   ---------   ---------
          Net cash provided by (used in)
           financing activities              89,196     (37,134)    (20,026)
                                          ---------   ---------   ---------
NET INCREASE (DECREASE) IN CASH
 AND CASH EQUIVALENTS                        22,918      (6,148)    (38,066)

CASH AND CASH EQUIVALENTS AT
 BEGINNING OF YEAR                           36,171      42,319      80,385
                                          ---------   ---------   ---------
CASH AND CASH EQUIVALENTS AT
 END OF YEAR                              $  59,089   $  36,171   $  42,319
                                          =========   =========   =========
Supplemental Cash Flow Disclosures:
  Interest paid, net of capitalized
    interest                              $   9,391   $  11,874   $   9,368
  Income taxes paid                       $   4,609   $   2,975   $   3,877
  Noncash investing activities:
   Purchase of property and equipment
    in exchange for equity or debt        $  15,866   $  36,708   $  24,324


    The accompanying notes are an integral part of the consolidated financial
statements.
                                   

                         READING & BATES CORPORATION
                               AND SUBSIDIARIES

                CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY

                 For the Three Years Ended December 31, 1996
                                (in thousands)

                                        Convertible 
                                         Preferred
                                           Stock            Common Stock 
                                      ----------------    -----------------
                                      Shares   Amount     Shares    Amount
                                      ------  --------    ------   --------
 Balances at December 31, 1993        2,990   $  2,990    55,489   $  2,774

 Net loss                                                       
 Dividends paid on preferred stock                              
 Purchase of leased drilling units                         4,230        212
 Activity in Company stock plans                                
 Additional minimum liability                                   
 Other                                                        (8)          
                                      -----   --------    ------   --------
 Balances at December 31, 1994        2,990      2,990    59,711      2,986

 Net income                                                     
 Dividends paid on preferred stock                              
 Conversion of preferred stock           (5)        (5)       14          1
 Purchase of drilling unit                                 1,232         62
 Activity in Company stock plans                             407         20
 Restricted stock grant                                      544         27
 Additional minimum liability                                   
 Other                                                        (8)        (1)
                                      -----   --------    ------   --------
 Balances at December 31, 1995        2,985      2,985    61,900      3,095

 Net income                                                     
 Dividends paid on preferred stock                              
 Conversion of preferred stock       (2,985)    (2,985)    8,650        433
 Activity in Company stock plans                             848         42
 Restricted stock grant                                      489         24
 Additional minimum liability                                   
 Other                                                         1           
                                      -----   --------    ------   --------
 Balances at December 31, 1996            -   $      -    71,888   $  3,594
                                      =====   ========    ======   ========



                        READING & BATES CORPORATION
                              AND SUBSIDIARIES

               CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY

                For the Three Years Ended December 31, 1996
                               (in thousands)

                                          Capital in  Retained
                                          Excess of   Earnings
                                          Par Value  (Deficit)     Other   
                                          ---------   --------   ---------
 Balances at December 31, 1993            $ 312,916   $  2,021   $  (1,158)

 Net loss                                              (17,146)
 Dividends paid on preferred stock                      (4,859)
 Purchase of leased drilling units           24,112
 Activity in Company stock plans                507                    265
 Additional minimum liability                                         (342)
 Other                                         (129)                    (3)
                                          ---------   --------   ---------
 Balances at December 31, 1994              337,406    (19,984)     (1,238)

 Net income                                             21,822
 Dividends paid on preferred stock                      (4,855)
 Conversion of preferred stock                    4           
 Purchase of drilling unit                   14,643           
 Activity in Company stock plans              3,107                    168
 Restricted stock grant                       7,524                 (7,551)
 Additional minimum liability                                         (307)
 Other                                          226                      6
                                          ---------   --------   ---------
 Balances at December 31, 1995              362,910     (3,017)     (8,922)
                                        
 Net income                                             77,916
 Dividends paid on preferred stock                      (3,631)
 Conversion of preferred stock                2,525           
 Activity in Company stock plans             10,710                    115
 Restricted stock grant                      13,756                (10,588)
 Additional minimum liability                                        1,233
 Other                                            6                       
                                          ---------   --------   ---------
 Balances at December 31, 1996            $ 389,907   $ 71,268   $ (18,162)
                                          =========   ========   =========

The accompanying notes are an integral part of the consolidated financial
statements.

 
                         READING & BATES CORPORATION
                               AND SUBSIDIARIES
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(A)  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

            CONSOLIDATION - The consolidated financial statements include  the
   accounts  of  Reading & Bates  Corporation  ("Reading  &  Bates")  and  its
   subsidiaries, including   its majority-owned subsidiary  Arcade Drilling AS
   ("Drilling") (collectively,  the  "Company").   As  of December  31,  1996,
   Reading  &  Bates owned  approximately 74.4%  of  the outstanding  stock of
   Drilling  (see  Note  B).   Investments  in  unconsolidated  investees  are
   accounted  for on the equity method.  All significant intercompany accounts
   and transactions have been eliminated.

            CASH  AND CASH  EQUIVALENTS -  The  Company  considers  all highly
   liquid investments purchased with a maturity of three months or  less to be
   cash equivalents.  At December 31, 1996, $20.1 million of the cash and cash
   equivalents  balance related to Drilling.   Such cash  and cash equivalents
   balance is available to Drilling  for all purposes subject to certain  debt
   covenants  under an amended credit facility provided by The Chase Manhattan
   Bank,  N.A. ("Chase Manhattan") which requires the maintenance of a minimum
   of $1.5 million in liquid assets ($10 million if Drilling  can not annually
   provide  to  the  lenders  satisfactory  contractual  commitments  for  the
   employment  of  both its  drilling units  for the  next twelve  months) and
   allows  Drilling  to declare  dividends  or  distributions to  stockholders
   provided that  at least one of  its drilling units is  employed pursuant to
   its current  contract with  no notice  of  cancellation  received and  $1.5
   million  of liquid  assets  remain after  payment  of such  distribution.  
   Drilling  declared a  distribution of  approximately $14.3  million in  the
   first  quarter of 1996, of  which the Company  received approximately $10.6
   million.

            MATERIALS  AND SUPPLIES  INVENTORY  - Materials  and supplies  are
   stated at the lower of average cost or market.

           PROPERTY  AND EQUIPMENT  - Property  and  equipment are  recorded at
   historical cost as  adjusted in the Company's quasi-reorganization in 1989.
   Reading & Bates'  mobile offshore  units are depreciated  under either  the
   units-of-production  method  or  the   straight-line  method.    Drilling's
   drilling units  are depreciated under the straight-line  method.  Estimated
   useful  lives for mobile offshore equipment range from three to twenty-five
   years.   Gain  (loss) on disposal  of properties  is credited  (charged) to
   income.     In  1995, the  Company  purchased an  approximate  20%  working
   interest in the  Green Canyon 254 Allegheny oil and gas development project
   in the  U.S. Gulf of  Mexico from  the operator, Enserch  Exploration, Inc.
   (see Note D).  In 1996, the Company entered into an agreement with Santa Fe
   Energy Resources  to explore five oil and  gas prospects also in  the U. S.
   Gulf  of Mexico.    As of  December  31, 1996,  none of  such  oil and  gas
   interests  had entered the production stage and the Company had accumulated
   costs related to the  interests of approximately $50.3   million which  are
   included  in Property and Equipment,  Other.  Depending  on prices, reserve
   developments and accounting policies  adopted, the Company could experience
   a future impairment charge.

           STOCKHOLDERS' EQUITY  - The Company's accumulated deficit at  March
   31, 1991  was eliminated as a  result of the Company's  recapitalization in
   1991. 

           INCOME TAXES  - Deferred  income taxes  are recognized  for revenues
   and expenses reported in  different years for financial statement  purposes
   and income tax purposes. 

           REVENUE RECOGNITION -  Revenues are  recognized as they are  earned.
   Proceeds associated  with the early termination of  a contract for a mobile
   offshore  unit are recorded as  deferred income and  recognized as contract
   revenues over the remaining term of the contract or until such time as  the
   mobile  offshore unit begins  a new contract.   There were  no such amounts
   deferred  at  December 31,  1996 or  1995.    In  addition,  when a  unit's
   mobilization  revenue exceeds the cost of the mobilization by a significant
   amount,  the Company recognizes the  excess as contract  revenue during the
   contract preparation  and mobilization period on a dayrate basis.  If there
   is revenue that has not been recognized by the time the unit has arrived on
   location the  remaining amount is recognized  over the primary term  of the
   contract.  

           In   1993,   the   Company  secured   a   contract   to  convert  a
   semisubmersible  drilling unit  into a floating  production system.   Under
   this  contract the  Company,  for  a  fixed  fee  and  certain  incentives,
   functioned as an agent for its customer and accordingly, disbursements made
   on behalf of the customer were netted against receipts from the customer in
   the accompanying financial statements.   The contract was completed  in the
   third  quarter of 1995 and  the disbursements and  receipts associated with
   the contract through that date amounted to approximately $123 million.

           CAPITALIZED INTEREST - The Company  capitalizes interest applicable
   to the acquisition,  exploration and  development of offshore  oil and  gas
   properties as  a cost of such  assets.  Interest capitalized  for the years
   ended  December  31,  1996  and  1995 was  $2.7  million  and  $.5 million,
   respectively  and  is shown  net of  interest  expense in  the Consolidated
   Statement of Operations. 

           FOREIGN CURRENCY TRANSACTIONS - The net gains  and losses resulting
   from  foreign  currency transactions  included  in  determining net  income
   amounted to a net gain of $.8 million in 1996, a net loss of $.8 million in
   1995, and a net  loss of $.6 million in  1994.  The Company may  enter into
   forward exchange  contracts to  hedge specific commitments  and anticipated
   transactions but not  for speculative or  trading purposes.   In the  third
   quarter of 1996,  the Company  entered into a  short-term foreign  exchange
   forward contract  to hedge  a firm commitment  relating to the  purchase of
   equipment.  This contract is intended to reduce currency risk from exchange
   rate movements.    Gains and losses are deferred and  accounted for as part
   of  the underlying  transaction.   At  December 31,  1996, the  Company had
   outstanding forward exchange contracts  to purchase Danish kroner totalling
   approximately $8.2 million.  During 1995 and 1994 the Company did not enter
   into any forward exchange contracts.

           EXTRAORDINARY  GAIN  - In  December 1995,  the  Company recorded an
   extraordinary  gain  of  $3,430,000  for  the  extinguishment  of   a  debt
   obligation.

           NET INCOME (LOSS) PER  COMMON SHARE - Primary net income (loss) per
   common share is computed by dividing net income (loss), after deducting the
   preferred  stock dividend, by the weighted  average number of common shares
   outstanding  during the period.  Fully diluted  net income per common share
   assumes  the conversion  of the  preferred stock  at the  beginning of  the
   period and  is  computed by  dividing net  income by  the weighted  average
   number of common  shares outstanding during the  period and the  additional
   shares from the assumption of  the conversion of the preferred stock.   The
   effects of common equivalent shares were antidilutive or immaterial for all
   periods presented and, accordingly, no adjustment was made for these common
   equivalent shares.  The computation of fully  diluted net income (loss) per
   share in 1995 and 1994 is not presented as the results are antidilutive.

           CONCENTRATION OF CREDIT RISK -  The Company maintains cash balances
   with commercial banks throughout the world.  The Company's cash equivalents
   generally consist  of  commercial  paper,  money-market  mutual  funds  and
   interest-bearing deposits  with strong credit rated  financial institutions
   and generally mature within three months, therefore, bearing minimal  risk.
   However, in 1994 the Company  incurred a $.7 million loss on the  sale of a
   cash investment due  to the decline  in the market  value.  No  losses were
   incurred during 1995 and 1996.

           The  Company's revenues were  generated  primarily from  its mobile
   offshore units.  Revenues can be generated from a small number of customers
   which are  primarily major U.S. oil and gas companies or their subsidiaries
   and  foreign government-owned oil and gas  companies.  The Company performs
   ongoing  credit  evaluations of  its  customers'  financial conditions  and
   generally  requires no  collateral  from  its  customers.    The  Company's
   allowance  for  doubtful  accounts  at   December 31,  1996  and  1995  was
   $1,891,000 and $1,123,000, respectively.

           INDUSTRY  CONDITIONS  -     Results  of  operations  and  financial
   condition of the Company should be considered  in light of the fluctuations
   in demand  experienced by drilling  contractors as changes  in oil  and gas
   producers' expectations and budgets occur.   These fluctuations can  impact
   the  Company's results of operations and  financial condition as supply and
   demand factors  directly affect  utilization and  dayrates,  which are  the
   primary determinants of cash flow from the Company's operations.

           LIQUIDITY  -  As   of  December   31,  1996,  the  Company's  total
   consolidated cash and cash equivalents were $59.1 million.  Of this amount,
   approximately $20.1 million is restricted from the Company's use outside of
   Drilling  (see CASH AND CASH EQUIVALENTS  above).  The Company's management
   currently  expects that its cash flow  from operations, in combination with
   cash on hand, funds available under its existing credit  facility and other
   sources,  including new debt, new equity,  asset disposals and/or by proper
   scheduling of its planned capital or other expenditures, will be sufficient
   to satisfy the  Company's short-term and  long-term working capital  needs,
   planned   investments,  capital  expenditures,   debt  and   other  payment
   obligations. 

           NEWLY ISSUED ACCOUNTING  STANDARDS -  In  March 1995,  Statement of
   Financial Accounting Standards  No. 121, Accounting  for the Impairment  of
   Long-Lived Assets and for Long-Lived Assets to be Disposed of  ("SFAS 121")
   was  issued.   SFAS  121, which  became  effective in  1996,  requires that
   certain long-lived  assets  be  reviewed  for  impairment  whenever  events
   indicate that the  carrying amount of an asset may  not be recoverable, and
   that an impairment  loss be recognized under  certain circumstances in  the
   amount by which the carrying value exceeds the fair value of the asset.  In
   1995, the  Company adopted SFAS  121 which had  no effect on  the Company's
   consolidated results of operations or financial position.

           In October 1995, Statement  of Financial  Accounting Standards  No.
   123, Accounting for Stock Based Compensation ("SFAS 123") was issued.  SFAS
   123 requires either  recognition of compensation  expense in the  financial
   statements  for those companies that adopt  the fair value based accounting
   method  or expanded  disclosure of  pro forma  net income and  earnings per
   share information for  those companies that  retain the current  accounting
   method  set  forth  in  Accounting  Principles  Board  (APB)   Opinion  25,
   Accounting  for  Stock  Issued to  Employees.    The  Company  follows  the
   accounting method set  forth in APB  25 and in  1996 included the  expanded
   disclosure requirements (See Note I).

           ESTIMATES - The preparation  of financial  statements in conformity
   with generally  accepted accounting principles requires  management to make
   estimates and assumptions  that affect the reported  amounts of assets  and
   liabilities and disclosure of contingent assets and liabilities at the date
   of  the  financial  statements and  the  reported amounts  of  revenues and
   expenses during  the reporting period.   Actual  results could differ  from
   those estimates.

           RECLASSIFICATION - Certain prior period amounts in the consolidated
   financial statements have been reclassified for comparative purposes.  Such
   reclassifications had no  effect on  the net income  (loss) or the  overall
   financial condition of the Company.

(B)  INVESTMENT IN ARCADE 

           ARCADE ACQUISITION  -  In June  1991, as  part  of  its strategy of
   emphasizing    geographic     diversification    and    "fourth-generation"
   semisubmersible drilling  technology,  the Company   began  acquiring   the
   stock of  Arcade Shipping AS  ("Shipping") and Drilling, both  of which are
   Norwegian companies (the "Arcade  Acquisition").  Beginning with the  first
   quarter of  1992, the Company began to consolidate the accounts of Drilling
   and Shipping into  the consolidated  financial statements  of the  Company.
   Drilling owns the "HENRY GOODRICH" and the "PAUL B. LOYD, JR.", two fourth-
   generation  semisubmersible drilling  units.   Shipping, which  the Company
   sold  its  ownership interest  in June  1994,  had two  principal  lines of
   operations, the shipping  operations which included  owning and  chartering
   vessels  and the  drilling operations  which principally  consisted  of the
   ownership   of   approximately    46.2%   of   the   outstanding  stock  of
   Drilling.   The shipping operations  of Shipping had  been accounted for as
   discontinued  operations  until June 1994, when  the  Company  completed  a
   transaction   which  consisted   of   the Company selling  its entire 82.6%
   ownership in  Shipping for  approximately  $27.8 million,  purchasing  from
   Shipping its entire  46.2% ownership in Drilling  and equity securities  in
   Dragon Oil for approximately $45.4 million and Shipping repaying a loan  of
   approximately $12.9 million to the Company.  This transaction resulted in a
   net cash outflow of $4.7 million. 

           The   Arcade  Acquisition   has  been   funded  through  short-term
   financing, a private placement of both preferred and common stocks  and the
   Company's  working capital.    As of  December  31, 1996,  the  Company had
   acquired approximately 74.4% of the outstanding  stock of  Drilling, at  an
   accumulated cost  of approximately $102.9  million net  of a $10.6  million
   distribution to the  Company declared by Drilling  in the first quarter  of
   1996.

           DISCONTINUED OPERATIONS OF SHIPPING - On June 22, 1994, the Company
   sold its entire  ownership in Shipping (see  above).  Shipping's  operating
   revenues  and net  loss  from January  1, 1994  to  the date  of  sale were
   approximately $6.5 million and $2 million, respectively.

(C)  LONG-TERM OBLIGATIONS

           Long-term obligations at  December 31,  1996 and  1995 consisted of
     the following (in thousands):

                                                         1996        1995
                                                      ---------    --------
         Christiania Bank (1)                         $ 166,000    $ 20,000
         Chase Manhattan (2)                             32,500      42,500
         8% Senior Subordinated Convertible
          Debentures due December 1998
          ("New Debentures") (3)                         13,078      10,873
         Deferred payment obligation (4)                  7,500      10,000
         The CIT Group (5)                                    -      30,000
                                                      ---------    --------
           Total                                        219,078     113,373

         Less long-term obligations due
          within one year                               (11,500)    (18,333)
                                                      ---------    --------
         Long-term obligations                        $ 207,578    $ 95,040 
                                                      =========    ========
- --------------------------

  (1)  In November 1995, the Company entered into a  credit facility agreement
       with Christiania Bank og Kreditkasse (the "CBK Facility")  as agent for
       a  syndicate of  banks  (including  itself).    During  1996,  the  CBK
       Facility  was renegotiated  with an expanded bank  group and  currently
       consists of a  $300 million reducing  revolving credit  facility to  be
       utilized for  revolving loans  and/or issuance  of  standby letters  of
       credit  (subject to  a maximum of $30  million) (see Note E).   The CBK
       Facility  shall be reduced/repaid  by five  semi-annual installments of
       $25 million commencing  in May  1999 and one final  reduction/repayment
       of  $175 million  in November  2001 and  bears  interest at  the London
       Interbank Offered  Rate ("LIBOR") (5.625%  at December  31, 1996)  plus
       .85%.   In addition, a  fee of .85%  per annum is  paid on  outstanding
       letters of  credit and a  commitment fee  of .35% per annum  is paid on
       the unused  portion of the CBK Facility.   At  December 31, 1996, there
       were no  letters of credit outstanding under the  CBK Facility, leaving
       $134 million available for revolving  loans and/or  issuance of standby
       letters of credit (maximum of $30 million).  The CBK Facility  contains
       covenants which require the Company to meet certain  ratios and working
       capital  conditions,  and  is  collateralized  by  vessel mortgages  on
       thirteen   of  the  drilling  units  owned  by   the  Company,  related
       assignments of insurance  and earnings, and  a pledge of the  Company's
       shares of stock of Drilling.

  (2)  The adjusted payment terms of this bank obligation  of Drilling provide
       for repayment of principal  in seventeen semiannual  installments which
       commenced in  August  1991  and bears  interest  at  LIBOR  (5.625%  at
       December 31,  1996)  plus .45%.   Drilling  had  also  entered into  an
       interest rate  swap agreement  which ended in  August 1996.   The  bank
       obligation is  collateralized by  the drilling  units "HENRY  GOODRICH"
       and "PAUL B. LOYD, JR.", related assignments of  insurance and drilling
       contracts,  and  receivables.    The  amended  loan agreement  requires
       Drilling  to  maintain liquid  assets  of at  least  $1.5  million ($10
       million  if  Drilling   can  not  annually   provide  to   the  lenders
       satisfactory contractual  commitments for  the employment  of both  its
       drilling units for the  next twelve months).   It is also  an event  of
       default should  circumstances arise  which give  reasonable grounds  in
       the opinion of the bank syndicate for the  belief that Drilling may not
       (or may be unable to) perform or comply with its obligation. 

  (3)  The New  Debentures are convertible into the Company's  common stock at
       $37.035  per  share.      Accrued  interest  associated  with  the  New
       Debentures  at  December  31,  1996  and   1995,  was  $11,904,000  and
       $11,907,000,  respectively.    The  New  Debentures  were  recorded  at
       amounts equal to the net present value of their  respective future cash
       payments required, discounted at  15%, which is the  interest rate  the
       Company  believes  it  would  have  been  required  to  pay  to  obtain
       financing  of a similar nature  from other sources during  1991.  Based
       on limited information available to  the Company, the  recorded amounts
       of  the New  Debentures at  December 31,  1996  approximate  their fair
       market value.   The face amount of the  New Debentures and the  related
       unamortized  discount at  December 31,  1996 totalled  $18,599,000  and
       $5,521,000, respectively.  The face  amount of  the New  Debentures and
       the  related  unamortized  discount   at  December  31,  1995  totalled
       $18,605,000 and  $7,732,000 respectively.   During  1996, $5,500  (face
       amount)  of New  Debentures plus accrued interest  through December 31,
       1995 were  converted into  243 shares  of the  Company's common  stock.
       During 1995,  there were  no conversions  of New  Debentures to  common
       stock. 

  (4)  In September  1995, the  Company entered  into a  $10 million  deferred
       payment  obligation in  connection  with  the purchase  of the  support
       vessel "IOLAIR". The  deferred payment obligation  bears interest  at a
       fixed rate  of 8%.  A principal  repayment of $2.5  million was paid in
       September 1996 and payments  of $7 million  and $.5 million are due  in
       September  1998 and  September 2000,  respectively.   The obligation is
       collateralized by a vessel mortgage on the support vessel "IOLAIR".

  (5)  In May 1995,  the Company  entered into  a $25  million loan  agreement
       with The CIT  Group/Equipment Financing, Inc.   In  December 1995,  the
       Company  borrowed an additional  $5 million  under such loan agreement.
       In November 1996, the loan was repaid in  full from proceeds of the CBK
       Facility (see above).   The loan bore interest  at the one  month LIBOR
       plus 2.5%.   Principal repayments were $5,416,667 in  November 1996, 34
       monthly installments  of   $416,667 to  have commenced    in   December
       1996   and   one  payment of  $10,416,655 in  October 1999.   The  loan
       agreement  contained  covenants  which  required  the  Company to  meet
       certain  financial conditions,  including,  among  others, a  cash flow
       coverage  ratio and  a long-term  debt to  total assets  ratio, and was
       collateralized by  vessel mortgages on two of the  drilling units owned
       by the Company and related assignments of insurance and earnings.  

          Aggregate  annual maturities  of  long-term  obligations, (including
    the  current  portion)  for  the  next  five  years  are  as  follows  (in
    thousands): 

               1997                                     $  11,500
               1998                                        38,599
               1999                                         8,000
               2000                                           500
               2001                                       166,000
                                                        ---------
                                                          224,599 
               Less the unamortized discount
                 on the New Debentures                     (5,521)
                                                        ---------
               Total long-term obligations and long-
                 term obligations due within one year
                 at December 31, 1996                   $ 219,078
                                                        =========

(D)  SHORT-TERM OBLIGATIONS

          In October 1995, the  Company entered into a $12 million  short-term
   obligation   with  Enserch  Exploration,  Inc.   for  the  purchase  of  an
   approximate 20% working interest in an oil and gas development project (see
   PROPERTY AND EQUIPMENT  of Note A).  The obligation bore interest  at 8.56%
   and  two principal  repayments of $6  million were  made in  March 1996 and
   September 1996.

(E)  COMMITMENTS AND CONTINGENCIES

          CAPITAL  EXPENDITURES  -  At  December  31,  1996,  the  Company had
   purchase commitments of $21.9 million  for equipment on its mobile offshore
   units.

          OPERATING  LEASES  -  The  Company  has  operating  leases  covering
   premises and equipment.   Certain operating leases contain renewal  options
   and  have options to purchase the asset at  fair market value at the end of
   the lease term.   Net rent  expense amounted to  $9.5 million (1996),  $2.3
   million (1995) and  $11.2 million (1994).  As of  December 31, 1996, future
   minimum rental  payments relating to  operating leases were as  follows (in
   thousands):

                      1997      1998    1999      2000     2001  Thereafter
                    --------  -------  -------  -------  -------  --------
   Drilling Unit    $  8,337  $ 8,337  $ 8,337  $ 8,337  $ 8,337  $ 32,655
   Other               1,735    1,286      147       57        9         -
                    --------  -------  -------  -------  -------  --------
   Total            $ 10,072  $ 9,623  $ 8,484  $ 8,394  $ 8,346  $ 32,655
                    ========  =======  =======  =======  =======  ========

          In November 1995, the Company entered into a sale/lease-back of  the
   "M.  G. HULME, JR.".   As  part of this  transaction the Company  agreed to
   lease the drilling unit  for ten years and could receive up  to $60 million
   in cash, inclusive of a $10 million  funding provision for upgrades.  As of
   December 31, 1996, the  Company had received $58.9 million.  The lease-back
   is accounted for  as an operating lease and a deferred gain of $7.4 million
   was  recorded   and  is  being   amortized  over  the  life  of  the  lease
   (see Note F).

          In the  third quarter of 1994,  the Company purchased certain  notes
   and interests  relating to the  lease debt outstanding associated  with the
   operating  leases of  the drilling  units  "GEORGE H.  GALLOWAY" and  "C.E.
   THORNTON",  and  the secured  contingent  obligations  associated with  the
   capital  lease of  the "F.G.  McCLINTOCK".     Total consideration  for the
   transaction was approximately $36.5 million which  consisted of the Company
   paying cash of approximately $12.2  million and issuing 4,230,235 shares of
   the   Company's  common  stock,   par  value  $.05   per  share,  totalling
   approximately $24.3  million  at  then prevailing  stock  prices.    Since,
   through  such  purchases,  the  Company  now  controls  and  has  effective
   ownership  of the  three rigs, it  recorded the  purchase of  the notes and
   interests as  purchases of the  rigs.   The Company  now has  title to  the
   "GEORGE H. GALLOWAY" and "F. G. McCLINTOCK" and expects to acquire title to
   the "C. E. THORNTON" in March 1997.  

          In March  1992, the Company  entered into a  sale/lease-back of  the
   "SONNY VOSS".   Proceeds received of  $27.7 million resulted  in a gain  of
   $6.3  million which  was deferred  and was  being amortized over  the lease
   term.  In December  1994, for a fee of $.5  million, the Company negotiated
   an early release from  all of its remaining lease obligations  with respect
   to the "SONNY VOSS".  Such lease obligations were scheduled to have expired
   in September 1995 and the net effect of  the early release on the Company's
   statement of operations was a gain of $.5 million recognized as a reduction
   of operating expenses in the fourth quarter of 1994.

          DRILLSHIP PROJECT  - In October 1996,  the Company and an  affiliate
   of  Conoco  Inc. formed  a  50/50  joint venture  to  build  and operate  a
   dynamically positioned drillship capable of  drilling at water depths up to
   10,000  feet.   Samsung Heavy  Industries  of Korea  has  been awarded  the
   contract  to construct  the  vessel at  a current  estimated  cost of  $220
   million plus capitalized  interest.  Immediately following the  delivery of
   the drillship,  which is expected  to be in 1998,  it will commence  a five
   year drilling program in the deep water of the U.S. Gulf of Mexico.

          NIC FINANCING  - In December 1996, a wholly owned  subsidiary of the
   Company entered  into a five  year $38  million loan agreement  with Nissho
   Iwai Europe  PLC ("NIC").  The Company expects  to receive the funds in the
   first quarter of  1997, subject to  the finalization of the  agreement. The
   loan  will be collateralized by a vessel mortgage on the "SEILLEAN" without
   recourse  to  the Company  and  shall  bear  interest  at  LIBOR  plus  2%.
   Principal repayments  will be monthly  based on  the greater of  the excess
   cash flow of the "SEILLEAN" or the outstanding principal balance divided by
   the  remaining period of  the loan.   In  addition, NIC  has the  option to
   purchase  up to 10% of  the ownership in the "SEILLEAN",  any time prior to
   three years after the Company has received the funds from NIC, at a minimum
   price of $4.2 million. 

          LITIGATION -  In  November 1988,  a lawsuit  was filed  in the  U.S.
   District Court for the Southern District of West Virginia against Reading &
   Bates  Coal  Co.,  a  wholly  owned  subsidiary  of  the  Company,  by  SCW
   Associates, Inc.  claiming breach of  an alleged agreement to  purchase the
   stock of Belva Coal Company,  a wholly owned subsidiary of Reading  & Bates
   Coal Co. with coal properties in West Virginia.  When those coal properties
   were  sold in July  1989 as part  of the disposition  of the Company's coal
   operations, the purchasing  joint venture indemnified Reading  & Bates Coal
   Co. and  the Company against any  liability Reading & Bates  Coal Co. might
   incur  as the result of  this litigation.  A judgment  for the plaintiff of
   $32,000 entered in February 1991 was satisfied and Reading & Bates Coal Co.
   was indemnified by the purchasing joint venture.  On October  31, 1990, SCW
   Associates, Inc.,  the plaintiff  in the  above-referenced action,  filed a
   separate  ancillary  action  in the  Circuit  Court,  Kanawha County,  West
   Virginia  against the  Company and a  wholly owned subsidiary  of Reading &
   Bates  Coal Co.,  Caymen Coal,  Inc. (former  owner of  the  Company's West
   Virginia coal  properties), as  well as the  joint venture,  Mr. William B.
   Sturgill personally (former  President of Reading & Bates  Coal Co.), three
   other companies in which the  Company believes Mr. Sturgill holds an equity
   interest,  two employees  of  the  joint venture,  First  National Bank  of
   Chicago  and First  Capital  Corporation.   The  lawsuit  seeks to  recover
   compensatory damages of $50 million and punitive damages of $50 million for
   alleged tortious interference with the contractual  rights of the plaintiff
   and to impose a constructive trust  on the proceeds of the use and/or  sale
   of the assets of  Caymen Coal, Inc. as  they existed on   October 15, 1988.
   Subsequently, the court  entered an order dismissing the Company's indirect
   subsidiary.   The Company  intends to defend  its interests  vigorously and
   believes the  damages alleged by  the plaintiff  in this action  are highly
   exaggerated.  In any event, the Company believes that it has valid defenses
   and that it will prevail in this litigation.  

          The Company was one of the defendants in certain litigation  brought
   in  July 1984  by  the  Cheyenne-Arapaho Tribes  of  Oklahoma  in the  U.S.
   District Court for the  Western District of Oklahoma, seeking to  set aside
   two  communitization  agreements with  respect  to  three leases  involving
   tribal lands in which  the Company previously  owned interests and to  have
   those  leases  declared  expired.  In June 1989,  the  U.S.  District Court
   entered an  interim order in favor  of the plaintiffs. On  appeal, the U.S.
   Court of  Appeals for the  Tenth Circuit upheld  the decision of  the trial
   court and petitions  for rehearing of that decision  were denied. Petitions
   for writs  of certiorari filed by  the parties with the  U.S. Supreme Court
   were denied, and the case was remanded to the trial court for determination
   of damages.  In June 1996, this  matter was settled, and the litigation was
   dismissed with prejudice, without significant financial statement impact.

          On  March  17,  1995,  an  action  was  filed  by  Louis  Silverman,
   individually  and on behalf  of all other  shareholders of Reading  & Bates
   Corporation similarly  situated, against  the  Company and  the  individual
   members of its board of directors in the Court of Chancery of the  State of
   Delaware, New  Castle County.   On April  7, 1995 three  additional actions
   were filed on behalf of Congregation Beth Joseph,  Harry Lewis and Mortimer
   Shulman against the Company and  its directors in the Court of  Chancery of
   the State of Delaware.  In each of the four actions, the plaintiff alleged,
   inter alia, that the directors breached their fiduciary duties by rejecting
   the previously announced unsolicited merger proposal made by Sonat Offshore
   Drilling Inc.  and by adopting the previously  announced shareholder rights
   plan.  Each  of the named plaintiffs in the four actions purported to be an
   owner of  the Company's common  stock and  sought to represent  a class  of
   shareholders of  the Company  who  are similarly  situated.   Each  of  the
   plaintiffs  sought injunctive  relief, damages  in unspecified  amounts and
   certain other  relief, including costs  and expenses.   In March  1996, the
   plaintiffs in  each of the  four actions  voluntarily dismissed  same on  a
   without prejudice basis, and the court entered orders accordingly.

          The Company  is involved in  these and various  other legal  actions
   arising in the normal course of  business.  After taking into consideration
   the evaluation of such actions by counsel for the Company, management is of
   the  opinion that  the  outcome  of  all known  and  potential  claims  and
   litigation  will  not have  a  material  adverse  effect on  the  Company's
   business or consolidated financial position or results of operations.

          EMPLOYMENT  CONTRACTS - The  Company has  committed under employment
   contracts to  provide each of   two key executives  with severance benefits
   (the   aggregate  of  such   benefits  to  both   executives  amounting  to
   approximately $3.7 million) which vest  in September 2003 or earlier  if an
   entity  in which each such executive has  an interest reduces its ownership
   of the  Company's common stock below  a specified level and  such executive
   gives notice of termination of his employment in  accordance with the terms
   of  his employment  contract.    The  Company amortizes  the  cost  of  the
   severance  benefits  over  the  ten  year period  from  September  1993  to
   September  2003,  unless  the relevant  reduction  of  stock ownership  and
   termination of employment occurs prior to  September 2003 in which case the
   unamortized  severance cost  would be  expensed. In  the second  quarter of
   1996,  one of  the  two key  executives  gave  such notice  of  termination
   following the relevant reduction of stock ownership by the entity in  which
   he had an interest.  In the same period, the Company paid the key executive
   severance benefits in accordance with his employment contract and  expensed
   the related unamortized  severance cost of approximately $.6  million.  The
   unaccrued severance  benefits for the  remaining key executive  at December
   31, 1996 was approximately $2 million. 

          LETTERS OF CREDIT -  At December 31, 1996,  the Company had  letters
   of credit outstanding and unused totalling $18.3 million and $31.7 million,
   respectively (see Note  C).  At December 31, 1995,  the Company had letters
   of credit outstanding and unused totalling $13.3 million and $21.7 million,
   respectively.

(F)  ACCRUED LIABILITIES AND OTHER NONCURRENT LIABILITIES

          The  components of  "Accrued liabilities"  at December  31, 1996 and
   1995 were as follows (in thousands):

                                                1996        1995 
                                              --------   --------
            Accrued expenses - general        $ 13,759   $ 11,051
            Accrued interest expense             2,807      2,657
            Other                                5,105      6,810
                                              --------   --------
            Total                             $ 21,671   $ 20,518
                                              ========   ========

            The components  of "OTHER NONCURRENT LIABILITIES"  at December 31,
   1996 and 1995 were as follows (in thousands):

                                                        1996      1995  
                                                      --------  --------
      Postretirement benefit obligations              $ 15,697  $ 15,993
      Accrued interest expense related to
       the New Debentures                               10,416    10,410
      Deferred gain on sale of drilling unit             6,465     7,229
      Net liabilities associated with
       discontinued operations                           6,236     5,818
      Foreign income taxes                               5,954     5,893
      Pension obligations                                3,982     5,090
      Other                                              3,341     1,285
                                                      --------  --------
      Total                                           $ 52,091  $ 51,718
                                                      ========  ========

(G)  INCOME TAXES

            Income tax expense for the years ended December 31, 1996, 1995 and
      1994 consisted of the following (in thousands):

                                               1996       1995       1994  
                                             --------   --------   --------
            Current: 
                  Foreign                    $  5,079   $  2,395   $  3,825
                  Federal                         441        527          -
                                             --------   --------   --------
            Total current                       5,520      2,922      3,825
            Deferred                            2,364        (98)       268
                                             --------   --------   --------
                  Total                      $  7,884   $  2,824   $  4,093
                                             ========   ========   ========

            The domestic and foreign components of income (loss) before income
  taxes for  the years ended December 31,  1996, 1995 and 1994 were as follows
  (in thousands):
                                               1996       1995       1994
                                             --------   --------   --------
            Domestic                         $(29,441)  $(22,028)  $(27,211)
            Foreign                           121,925     44,766     13,308
                                             --------   --------   --------
            Total                            $ 92,484   $ 22,738   $(13,903)
                                             ========   ========   ========

            The effective tax rate, as computed on income before income taxes,
  differs  from  the statutory  U.S.  income  tax rate  for  the  years  ended
  December 31, 1996, 1995 and 1994 due to the following:

                                                1996      1995     1994  
                                                ----      ----     ----
            Statutory rate                        35 %      35 %     35 %
            Limitation on recognition
             of tax benefits                       -         -      (35)
            Use of previously reserved
             tax benefits                        (31)      (33)       - 
            Foreign tax settlement                 -        (6)       - 
            Foreign tax expense                    5        16       28 
            Other                                  -         -        1 
                                                ----      ----     ----
            Effective rate                         9 %      12 %     29 %
                                                ====      ====     ====

            Income taxes of  $4,093,000 were recognized in 1994 despite losses
  before income  taxes.    The  expense  resulted primarily  from  income  tax
  expense incurred with respect  to certain  foreign operations.  The  Company
  was  limited in  utilization  of  tax benefits  from investment  tax credits
  prior to 1986 and operating losses in 1994. 

            Deferred income taxes result  from those transactions which affect
  financial  and taxable  income  in different  years.   The  nature  of these
  transactions (all  of which  were long-term)  and the income  tax effect  of
  each as of December 31, 1996 and 1995 was as follows (in thousands):

                                                  1996               1995     
                                               ---------          ---------
            Deferred tax liabilities:
                Depreciation                   $ 124,059          $  99,513
                Intangible drilling costs          5,419              3,064
                                               ---------          ---------
            Total deferred tax liabilities       129,478            102,577
                                               ---------          ---------
            Deferred tax assets:
                Rig leases                        (6,255)           (15,342)
                Postretirement benefits           (5,633)            (8,183)
                Tax benefit carryforwards       (170,622)          (153,016)
                Valuation allowance               53,667             76,989
                Other                                  -                (48)
                                               ---------          ---------
            Total deferred tax assets           (128,843)           (99,600)
                                               ---------          ---------
            Net deferred tax liability         $     635          $   2,977 
                                               =========          =========

            Valuation  allowance  reflects  the  possible  expiration  of  tax
   benefits  (primarily  net  operating  loss carryforwards)  prior  to  their
   utilization.  The  reduction of the valuation allowance reflects the use of
   tax benefit loss carryforwards.

            Recapitalizations  of the  Company in  1989 and  1991 resulted  in
   ownership changes  for federal income tax  purposes.  As a  result of these
   ownership changes, the amount of tax benefit carryforwards  generated prior
   to the ownership changes  which may be utilized  to offset federal  taxable
   income  is  limited   by  the  Internal   Revenue  Code  to   approximately
   $3.8 million annually  plus certain built-in  gains that existed as  of the
   date  of such  changes.  Net  tax operating  losses of  $37,981,000 arising
   since the 1991 ownership change are not subject to this limitation.   

(H)  CAPITAL SHARES 

            On March  15, 1995,  the Company's board  of directors  declared a
   dividend  of  one preferred  share  purchase  right  (a "Right")  for  each
   outstanding share  of the Company's  common stock outstanding on  March 31,
   1995  (the"Record Date").   Each  Right entitles  the registered  holder to
   purchase from the Company one  one-hundredth of a share of Series  B Junior
   Participating Preferred Stock,  par value $1.00  per share (the  "Preferred
   Shares") of the Company  at a price of $30.50, subject  to adjustment.  The
   Rights  will  not   become  exercisable  until  10  days   after  a  public
   announcement  that  a person  or  group has  acquired  10% or  more  of the
   Company's  common stock  (thereby  becoming an  "Acquiring Person")  or the
   commencement of a tender or exchange offer  upon consummation of which such
   person or group  would own 10% or  more of the Company's  common stock (the
   earlier of such  dates being called the "Distribution  Date").  Rights will
   be  issued for  all  shares  of  the  Company's  common  stock  issued  and
   outstanding on the Record  Date.  Until the  Distribution Date, the  Rights
   will  be evidenced  by the  certificates representing the  Company's common
   stock and will be transferrable  only with the Company's common stock.   In
   the event that any person or group becomes an Acquiring Person, each Right,
   other than  Rights beneficially owned  by the Acquiring Person  (which will
   thereafter be void), will thereafter  entitle its holder to purchase shares
   of the  Company's common  stock  having a  market value  of  two times  the
   exercise  price of  the Right.   After  any person  or group has  become an
   Acquiring Person  and prior to the  acquisition by such person  or group of
   50% or more of the outstanding shares of common stock,  the Company's board
   of directors  may exchange each Right  (other than Rights  of the Acquiring
   Person), in whole  or in part, at an exchange ratio  of one common share or
   one  one-hundredth of a Preferred  Share per Right.   If after  a person or
   group has become  an Acquiring Person, the Company is  acquired in a merger
   or other business combination transaction  or 50% or more of its  assets or
   earning power are sold, each Right will entitle its holder  to purchase, at
   the Right's then  current exercise price, that  number of shares  of common
   stock of the acquiring company  which at the time of such  transaction will
   have a  market value of  two times the  exercise price of  the Right.   The
   board of  directors of the Company may redeem the  Rights in whole, but not
   in part, at a price of $.01 per Right at any time prior to such time as any
   person or  group becomes an Acquiring  Person.  The Rights  expire on March
   31, 2005.  Preferred  Shares purchasable upon exercise  of the Rights  will
   not be redeemable. Each Preferred Share  will be entitled to a preferential
   quarterly  dividend payment  equal to the  greater of  $1 per  share or 100
   times the dividend declared per  common share.  Liquidation preference will
   be equal to the greater of $100 per share or 100 times the payment made per
   common share. Each Preferred Share will have one vote, voting together with
   the common stock. 

            CONVERTIBLE PREFERRED STOCK - In July 1993, the Company effected a
   public offering of 2,990,000 shares of $1.625  Convertible Preferred Stock,
   par  value $1.00 per share  (the "Preferred Stock"),  pursuant to which the
   Company raised gross  proceeds of approximately $74.7 million  in cash. The
   Preferred  Stock was convertible  at the option  of the holder  at any time
   into shares of  the Company's common  stock at a  conversion rate of  2.899
   shares of common  stock for each share of Preferred  Stock (equivalent to a
   conversion  price  of  $8.625  per  share  of  common  stock),  subject  to
   adjustment in  certain events. Annual  dividends were $1.625 per  share and
   were cumulative  and payable quarterly  commencing September 30,  1993. The
   Preferred Stock  was redeemable at any time on or after September 30, 1996,
   at the option of the Company, in whole or in part, at a redemption price of
   $26.1375 per share, and thereafter at prices decreasing ratably annually to
   $25.00 per  share on or after  September 30, 2003, plus  accrued and unpaid
   dividends.  The  Preferred Stock had a liquidation preference of $25.00 per
   share, plus accrued and unpaid dividends.  During 1995, 5,000 shares of the
   Preferred Stock were  converted into 14,495 shares of  the Company's common
   stock.  On August  5, 1996, the Company announced  it would  redeem  all of
   the outstanding shares of its Preferred  Stock on September 30, 1996 at the
   redemption  price of  $26.1375 per  share.   However,  the majority  of the
   Preferred Stock outstanding  was converted into  approximately 8.6  million
   shares of the Company's common stock on or before September 30, 1996 and on
   September 30, 1996 approximately 1,041 shares were redeemed by the Company.

            COMMON STOCK  - In  September 1995, the  Company issued  1,232,057
   shares of  the Company's common stock  in association with the  purchase of
   the "J. W.  McLEAN" and filed a  shelf registration statement in  September
   1995 registering such 1,232,057 shares.  The Company has been informed that
   all of such shares  have been sold.  Pursuant to the  terms of registration
   rights  agreements among  the  Company  and certain  other  holders of  the
   Company's common stock, as currently in effect, the Company was required to
   maintain continuously effective shelf registration statements with  respect
   to approximately 2.5 million shares  of its common stock until the  earlier
   to occur of  (i) the sale  of such shares  by the  holders thereof or  (ii)
   August  1,  1996  (in the  case  of  approximately  .9 million  shares)  or
   September 14, 1996 (in the case  of approximately 1.6 million shares).  The
   Company   currently  maintains  the   effectiveness  of  such  registration
   statements on a voluntary basis.

            As  of December 31,  1996, authorized,  unissued shares  of common
   stock were reserved for issuance as follows:

      Issuance under the Company's stock
       plans (net of forfeitures)                      2,917,387
      Conversion of 8% Senior Subordinated
       Convertible Debentures                            944,112
      Conversion of Class A Stock                             81
                                                      ----------
            Total                                      3,861,580
                                                      ==========

            Class  A  (Cumulative Convertible)  Capital  Stock  (the "Class  A
  Stock") has been included with  "Capital in excess of par value" due to  the
  insignificance of the $880 outstanding at December 31, 1996 and 1995.

(I)  EMPLOYEE BENEFIT PLANS

            PENSION PLANS  - The  Company  has three  noncontributory  pension
  plans.  Substantially  all of  its employees are covered  by one or more  of
  these plans.   Plan  benefits are  primarily based  on years of  service and
  average high thirty-six month compensation.

            The  Reading  &  Bates  Pension  Plan  (the  "Domestic  Plan")  is
  qualified under the Employee Retirement Income Security Act (ERISA).   It is
  the Company's policy  to fund this plan not  less than the  minimum required
  by ERISA.  It is the  Company's policy to contribute to  the Reading & Bates
  Offshore  Pension Plan (the "Offshore  Plan") an amount  equal to the normal
  cost plus  amounts  sufficient to  amortize the  initial unfunded  actuarial
  liability and  subsequent unfunded  liability caused  by plan  or assumption
  changes over  thirty years.  The  unfunded liability arising from  actuarial
  gains and  losses is  funded over fifteen  years.   The Offshore  Plan is  a
  nonqualified  plan and is  not subject  to ERISA funding  requirements.  The
  Domestic and  Offshore Plans invest  in cash  equivalents, fixed income  and
  equity securities.

            The  Reading  & Bates  Retirement  Benefit  Replacement Plan  (the
  "Replacement Plan")  is a  self-administered unfunded  excess benefit  plan.
  All members of the  Domestic Plan or  the Reading  & Bates Savings Plan  are
  potential participants in the Replacement Plan.

            Net Pension costs for the years  ended December 31, 1996, 1995 and
  1994 included the following components (in thousands):

                                                    1996      1995      1994  
                                                  -------   -------   -------
   Service cost - benefits earned during
    the year                                      $ 1,754   $ 1,355   $ 1,412
   Interest cost on projected benefit obligation    4,651     4,504     4,284
   Actual (gain) loss on plan assets               (5,221)  (10,000)    1,004
   Net amortization and deferral                     (199)    5,186    (5,953)
                                                  -------   -------  --------
   Net pension costs                              $   985   $ 1,045   $   747
                                                  =======   =======   =======

          The funded status of  the plans at December 31, 1996 was as  follows
  (in thousands):

                                              Domestic   Offshore  Replacement
                                                Plan       Plan       Plan  
                                              --------   --------   --------
   Actuarial present value of
    benefit obligations:
   Vested benefit obligation                  $ 43,486   $ 12,484   $  2,324
   Nonvested benefit obligation                  1,905        653         88
                                              --------   --------   --------
   Accumulated benefit obligation               45,391     13,137      2,412
   Effect of projected future 
    compensation levels                          5,010      1,782        221
                                              --------   --------   --------
   Projected benefit obligation                 50,401     14,919      2,633
   Plan assets at fair value                    45,485     13,542          -
                                              --------   --------   --------
   Projected benefit obligation
    in excess of plan assets                     4,916      1,377      2,633
   Unrecognized cumulative net (loss) gain     (10,262)    (1,273)     3,491
   Prior service cost unrecognized
    in pension cost                              1,929        190        225
   Unrecognized net implementation
    asset (obligation)                           1,722          -     (2,412)
                                              --------   --------   --------
   Accrued (prepaid) pension cost             $ (1,695)  $    294   $  3,937
                                              ========   ========   ========

          The weighted  average discount rate and  rate of increase in  future
   compensation levels used in determining  the actuarial present value of the
   projected  benefit  obligations  was  7.4%  and  4.5%,  respectively.   The
   weighted average expected long-term rate of return on assets was 10%.

          POSTRETIREMENT  BENEFITS   -  In  addition   to  providing   pension
   benefits, the  Company  provides certain  health  care and  life  insurance
   benefits  for  retired  employees.    The  Company's  employees  may become
   eligible for these  benefits if they  reach normal or early  retirement age
   while  working for the  Company and if  they have accumulated  15 years (25
   years effective January 1, 1996) of service.  Health care costs are paid as
   they  are  incurred.  Life  insurance  benefits  are  provided  through  an
   insurance  company whose  premiums are  based on  benefits paid  during the
   year.  

          Postretirement benefit  costs for the years ended December 31, 1996,
   1995 and 1994 included the following (in thousands):

                                                  1996      1995      1994 
                                                -------   -------   -------
           Service cost - benefits earned
            during the year                     $   126   $   223   $   350
           Interest cost on projected
            benefit obligations                     794       986     1,241
           Amortization (benefit) cost -
            Accumulated Projected Benefit
            Obligation                             (877)     (768)     (539)
                                                -------   -------   -------
           Total postretirement benefit costs   $    43   $   441   $ 1,052
                                                =======   =======   =======

          The health care  cost trend rates used  to measure the expected cost
   in  1997 for medical,  dental and vision  benefits were 8%,  5.5% and 5.5%,
   respectively, each  graded down to an  ultimate trend rate of  5%, 4.5% and
   4.5%, respectively, to be achieved in  the year 2021.  The weighted average
   discount rate  and rate of increase  in future compensation levels  used in
   determining the actuarial present value of the projected benefit obligation
   was 7.4% and 4.5%,  respectively.  The effect  of   a  one-percentage-point
   increase  in health care cost trend rates for future periods would increase
   the service cost  and interest cost portion of  net periodic postretirement
   benefit cost  approximately 15.8%.  The  accumulated postretirement benefit
   obligation would increase by approximately 13.6%.

          The amounts recognized in  the Company's Consolidated  Balance Sheet
   at December 31, 1996 and 1995 were as follows (in thousands):

                                                          1996       1995 
                                                        --------   --------
      Plan assets at fair value                         $      -    $     -
      Accumulated postretirement benefit obligation:
         Retirees                                          8,081      8,808
         Fully eligible active plan participants             567        640
         Other active plan participants                    1,664      1,687
      Unrecognized prior service cost                      2,685      3,679
      Unrecognized cumulative net gain                     3,477      2,210
      Other                                                 (394)      (591)
                                                        --------   --------
      Postretirement benefit liability recognized 
        in the Consolidated Balance Sheet               $ 16,080   $ 16,433 
                                                        ========   ========

          SAVINGS PLANS -  The Company has  two savings  plans, the Reading  &
   Bates Savings  Plan and the Reading  & Bates Offshore Savings  Plan.  Under
   the plans, an employee may  contribute up to 10% of their base  salary (15%
   effective January 1, 1997) (subject to certain limitations) and the Company
   may make matching  contributions at a rate of  up to $1.00 for  each dollar
   contributed by the employee  up to 6% of the employee's base salary.  Since
   January  1, 1992, the Company has made  matching contributions at a rate of
   $.50 for each  dollar contributed  by the employee.   Effective January  1,
   1997, the  Company increased its matching  contributions to a rate  of $.75
   for  each dollar contributed  by the  employee.   Employees may  direct the
   investment of their  contributions and the contributions of  the Company in
   various plan investment options.

          Twenty-five  percent of the  Company's contribution  vests after two
   years of an employee's service with the Company, 50% after three years, 75%
   after four years  and 100% after five years.   Compensation costs under the
   plans amounted to $582,000 in 1996, $518,000 in 1995, and $531,000 in 1994.

          STOCK OPTION PLAN - The Company's 1990 Stock  Option Plan (the "1990
   Plan") is intended to provide  an incentive that will allow the  Company to
   retain  in its  employ, persons  of  the training,  experience and  ability
   necessary for  the development and  financial success of the  Company.  The
   1990 Plan  authorized options  with respect to  1,966,000 shares  of common
   stock to be granted to certain  employees  of  the  Company  at an adjusted
   option price  of $7.375  per share.   On September  25, 1991,  options with
   respect to all 1,966,000 shares  were granted. Total adjusted  compensation
   under the  1990 Plan of  approximately $1,550,000 represents the  excess of
   market price at  the measurement date  over the option price  multiplied by
   the number  of options granted.  This amount was recognized as expense over
   the four year vesting period which  commenced in March 1991.   Compensation
   recognized under the  plan for the years ending December  31, 1995 and 1994
   totalled  approximately $126,000 and $507,000, respectively.  The plan will
   terminate on March 29, 2001.

          STOCK INCENTIVE PLANS -  The Company has two stock incentive  plans,
   the 1992 Long-Term Incentive  Plan (the "1992 Plan") and the 1995 Long-Term
   Incentive Plan (the  "1995 Plan").  Both plans provide  for grants of stock
   options, stock appreciation rights, stock awards and cash awards, which may
   be granted singly, in combination or in tandem.  An  aggregate of 1,000,000
   and 2,500,000 shares of common stock is available for awards granted wholly
   or partly  in common stock under the 1992 Plan and 1995 Plan, respectively.
   In 1992,  the Company granted Restricted  Stock Awards under the  1992 Plan
   totalling  300,000  shares  of  common  stock.   Such  shares  awarded  are
   restricted  as to  transfer until  vested  pursuant to  a schedule  whereby
   1/24th of  the total number of  shares is vested per  calendar quarter from
   June 30, 1992 through March 31, 1998  (subject to certain conditions).  The
   market value at the date of grant of the common stock  granted was recorded
   as  unearned compensation  and is  amortized  to expense  over the  periods
   during which the  restrictions lapse or shares vest.   In 1995, the Company
   granted  Stock Options under  the 1992 Plan  and 1995 Plan  with respect to
   700,000 and 600,000 shares of common  stock, respectively, at option prices
   ranging  from $9.00 to $13.875 per  share (the market price  on the date of
   grants).   Such options become exercisable  either over a one  or four year
   period from the  date of grant  and no options  are exercisable within  six
   months or later  than ten years from the  date of grant. Also in  1995, the
   Company  granted Restricted  Stock  Awards under  the  1995 Plan  totalling
   544,200  shares of common stock.  Such  shares awarded are restricted as to
   transfer until fully vested three years from the date of grant.  The market
   value at  the date  of grant of  the common stock  granted was  recorded as
   unearned compensation  and is amortized  to expense over the  period during
   which the  shares vest.  In  1996, the Company granted  Stock Options under
   the 1995  Plan with respect to 150,000 shares  of common stock at an option
   price of  $28.00 per share  (the market  price on the  date of the  grant).
   Such options become exercisable over  a three year period from the  date of
   grant and are  not exercisable within  six months or  later than ten  years
   from the date of grant.  Also in 1996, the Company granted Restricted Stock
   Awards under  the 1995 Plan totalling 414,600 shares of common stock.  Such
   shares awarded are restricted as to transfer until fully vested three years
   from the  date of  grant.  The  market value  at the date  of grant  of the
   common stock granted was recorded as unearned compensation and is amortized
   to  expense  over  the period  during  which  the  shares  vest.   Unearned
   compensation is shown as a reduction of stockholders' equity.  Compensation
   recognized under  the stock incentive  plans for the years  ending December
   31,  1996   and  1995  totalled  approximately   $3,230,000  and  $167,000,
   respectively.

          DIRECTOR  STOCK OPTION  PLAN  -  The Company's  1995 Director  Stock
   Option Plan (the  "1995 Director Plan")  is intended to  obtain and  retain
   non-employee members of the board of directors by rewarding them for making
   major contributions to the success of the Company.  The  1995 Director Plan
   authorized options  with respect to  200,000 shares  of common stock  to be
   granted at  an option  price of  $7.375 per share.   In  1995, the  Company
   granted 120,000 options.  The market value of the Company's common stock at
   the  date of  grant was  less than  the option  price, and  no compensation
   expense was recorded.

   Stock option transactions under the plans were as follows:

                                                           1995      Weighted
                        1990        1992       1995      Director    Average
                        Plan        Plan       Plan        Plan      Price
                     ---------    -------     -------     -------    --------
Outstanding at
 December 31, 1993   1,770,300          -           -           -       7.38
     Forfeited          (2,000)         -           -           -       7.38
                     ---------    -------     -------     -------    
Outstanding at
 December 31, 1994   1,768,300          -           -           -       7.38
     Granted                 -    700,000     600,000     120,000      11.95
     Exercised        (406,833)         -           -           -       7.38
     Forfeited          (2,000)    (5,000)          -           -       8.54
                     ---------    -------     -------     -------
Outstanding at
  December 31, 1995  1,359,467    695,000     600,000     120,000       9.71
     Granted                 -          -     150,000           -      28.00
     Exercised        (754,000)   (47,580)          -     (62,000)      7.46
     Forfeited          (2,000)    (4,800)          -           -       8.52
                     ---------    -------     -------     -------
Outstanding at
 December 31, 1996     603,467    642,620     750,000      58,000      12.00
                     =========    =======     ========     =======   
Exercisable at
 December 31,
     1994            1,461,100          -           -           -       7.38
     1995            1,359,467          -           -     105,000       7.38
     1996              603,467    410,180     600,000      48,000      11.00
Available for
 grant at December 31,
     1994                    -    700,000           -           -
     1995                    -      5,000   1,355,800      80,000
     1996                    -     11,600     771,700      80,000

Weighted average
 fair value
 of options granted          -       5.83        9.07        3.21

          The fair  value of each grant  since January 1, 1995 is estimated on
   the date of  the grant using the  Black-Scholes option pricing  model using
   the  following  weighted-average assumptions  for the  1992 Plan,  the 1995
   Plan, and the  1995 Director Plan, respectively:   risk-free interest rates
   of  5.8%, 5.4%, and  7.4%; expected lives  of 5.3, 3.4,  and 4.0 years; and
   expected volatility of 59%, 65%, and 43%.

      The  Company accounts for  these plans under  APB Opinion No.  25, under
   which no compensation cost has been  recognized.  Had compensation cost for
   these plans  been determined consistent  with SFAS  123, the Company's  net
   income and  earnings per  share would  have been  reduced to the  following
   proforma amounts (in thousands except per share amounts):

                                                1996        1995      1994   
                                             --------   --------   --------
      Net income (loss):   As Reported       $ 77,916   $ 21,822   $(17,146)
                           Pro Forma         $ 72,913   $ 20,655   $(17,146)
      Primary EPS:         As Reported       $   1.15   $    .28   $   (.39)
                           Pro Forma         $   1.07   $    .26   $   (.39)
      Fully diluted EPS:   As Reported       $   1.10          -          -
                           Pro Forma         $    .98          -          -

          Because the SFAS  123 method of  accounting has not been  applied to
   options  granted   prior  to  January  1,  1995,   the  resulting  proforma
   compensation cost  may  not be  representative of  that to  be expected  in
   future years.

(J)  RELATED PARTY TRANSACTIONS
          In 1994, as a part  of  the purchase of certain notes and  interests
   relating to  two of  the leased  drilling units  "C.E. THORNTON"  and "F.G. 
   McCLINTOCK" (see  Note E),  the  Company paid  cash of  $93,500 and  issued
   44,000  shares of common stock to BCL  Investment Partners, L.P. ("BCL"), a
   major shareholder of the Company  during 1994.  Such cash and  common stock
   represented  payment for  BCL's  proportionate holdings  of such  notes and
   interests and was paid pro rata to all sellers of such notes and interests.


          Drilling  had rig  management  agreements with  Transocean  Offshore
   Inc. (as successor to Sonat Offshore Drilling Inc.), a major shareholder of
   Drilling, for the operation  and marketing of  both of its drilling  units.
   The management agreement  for one of  Drilling's drilling units  expired in
   December 1995 and the  other expired in October  1996, and a subsidiary  of
   the Company now manages both drilling units.  For each of the  years ending
   December 31, 1996, 1995 and 1994, Drilling paid to Transocean Offshore Inc.
   approximately $1.2  million, $2.6 million  and $2.5 million,  respectively,
   for such management services.  In addition, Drilling had a bareboat charter
   agreement with Transocean Offshore Inc.  for the other drilling unit.   For
   the years ended  December 31, 1996, 1995  and 1994, Drilling received  from
   Transocean Offshore  Inc. approximately $15.1  million, $11.8 million,  and
   $13.9  million, respectively, for such  bareboat charter.   At December 31,
   1996 and 1995, Drilling had a net receivable from Transocean Offshore  Inc.
   of $.8 million and $5.4 million, respectively.

(K)  MAJOR CUSTOMERS AND GEOGRAPHIC INFORMATION

          The  Company, together  with its  50% or  less owned  unconsolidated
   investees, operates principally in international offshore contract drilling
   of oil and gas wells.  For  the year ended December 31, 1996, revenues from
   two customers of $58 million  and $35.6 million accounted for 20%  and 12%,
   respectively,  of the  Company's total operating  revenues.    For the year
   ended December 31, 1995,  revenues from  two customers of $29.4 million and
   $28.9  million each  accounted  for 14%  of the  Company's  total operating
   revenues.   For  the  year ended  December  31, 1994,  revenues   from  one
   customer  of  $35.2  million  accounted  for  21%  of  the  Company's total
   operating revenues.  

           Geographic  information  about the  Company's  operations  for  the
   three years ended December 31, 1996 is as follows (in thousands):

                                          1996        1995         1994  
                                      ----------   ----------   ----------
      Operating revenues:
            United States             $   28,323   $   24,451   $   20,151
            Southeast Asia                59,028       63,562       69,751
            Mediterranean-
                Middle East                8,662       31,406       19,344
            Europe                       146,899       63,639       43,646
            Australia                     23,686       20,940       11,516
            West Africa                   23,625        8,490        4,608
            Other Foreign                      -          307           42
            Corporate                          -            -            -
                                      ----------   ----------   ----------
              Total                   $  290,223   $  212,795   $  169,058
                                      ==========   ==========   ==========

      Operating profit (loss):(1)
            United States             $    7,743   $    3,541   $   (3,691)
            Southeast Asia                27,411       22,358       18,413
            Mediterranean-
               Middle East                 2,427       10,661          463
            Europe                        73,897       16,230        1,874
            Australia                     11,370         (283)       1,500
            West Africa                    8,853        2,663       (3,362)
            Other Foreign                    (27)         115          (33)
            Corporate                    (26,594)     (19,076)     (18,636)
                                      ----------   ----------   ----------
               Total                  $  105,080   $   36,209   $   (3,472)
                                      ==========   ==========   ==========
      Identifiable assets:
            United States             $  117,991   $   52,564   $   82,639
            Southeast Asia               137,001      163,119      166,896
            Mediterranean-
               Middle East                14,021       61,022       37,892
            Europe                       402,248      258,934      218,755
            Australia                     47,855        3,947       17,175
            West Africa                   47,016       14,373       13,072
            Other Foreign                     45           45            -
            Corporate                     42,013       51,776       50,372
                                      ----------   ----------   ----------
               Total                  $  808,190   $  605,780   $  586,801
                                      ==========   ==========   ==========

   (1)   Operating   profit  (loss)  represents   operating  revenues  less
         operating expenses, depreciation,  general and  administrative and
         other, net.



                            READING & BATES CORPORATION
                                   AND SUBSIDIARIES

                  SUPPLEMENTAL CONSOLIDATED FINANCIAL INFORMATION

                        QUARTERLY FINANCIAL DATA (UNAUDITED)

    Summarized quarterly financial data for the two years ended December 31,
1996, are as follows (in thousands except for per share amounts):

                                            Quarter                       
                        -------------------------------------------------- 
                         First      Second    Third      Fourth     Total  
                        --------   --------  --------   --------  --------
1996:
- ----
Operating revenues      $ 61,190   $ 61,700  $ 76,413   $ 90,920  $ 290,223
Gross income (1)        $ 22,695   $ 26,772  $ 33,143   $ 45,049  $ 127,659
Net income              $ 13,472   $ 15,835  $ 22,645   $ 25,964  $  77,916
Net income per common
 share:
  Primary               $    .20   $    .23  $    .34   $    .36  $    1.15
  Fully diluted         $      -   $    .22  $    .32   $      -  $    1.10

1995:
- ----
Operating revenues      $ 47,975   $ 50,382  $ 54,661   $ 59,777  $ 212,795
Gross income (1)        $  8,421   $ 11,296  $ 16,100   $ 17,531  $  53,348
Income (loss) before
 extraordinary gain     $   (369)  $  2,432  $  9,100   $  7,229  $  18,392
Extraordinary gain      $      -   $      -  $      -   $  3,430  $   3,430
Net income (loss)       $   (369)  $  2,432  $  9,100   $ 10,659  $  21,822
Earnings (loss) per
  share:
 Income (loss) before
  extraordinary gain    $   (.03)  $    .02  $    .13   $    .10  $     .22
 Extraordinary gain     $      -   $      -  $      -   $    .05  $     .06
 Net income (loss) per
  share applicable to
  common stockholders   $   (.03)  $    .02  $    .13   $    .15  $     .28

- ----------------------

(1) Gross income represents operating revenues less operating expenses,
    depreciation, and other, net.


Item  9.   Changes in  and  Disagreements with  Accountants on  Accounting and
Financial Disclosure

      Not applicable.

                                   PART III

The  information called  for  by Part  III  of Form  10-K  is incorporated  by
reference from the Registrant's Proxy Statement relating to its annual meeting
of Stockholders to be held May 13, 1997, which will be filed by the Registrant
with the Securities  and Exchange Commission no later than  120 days after the
close of the fiscal year.  Also reference is made to the information contained
under the captioned  "Executive Officers  of Registrant" contained  in Part  I
hereof.

                                    PART IV

Item 14.  Exhibits, Financial Statements and Reports on Form 8-K
(a)Financial Statements and Exhibits

  1. Financial Statements:
     Report of Independent Public Accountants
     Consolidated Balance Sheet as of December 31, 1996 and 1995
     Consolidated Statement of Operations for  the years ended December  31,
       1996, 1995 and 1994
     Consolidated Statement of  Cash Flows for the years ended  December 31,
       1996, 1995 and 1994
     Consolidated  Statement of   Stockholders' Equity  for the  years ended
       December 31, 1996, 1995 and 1994
     Notes to Consolidated Financial Statements
     Supplemental Consolidated Financial Information (unaudited)

  2. Exhibits:

     Exhibit 3.1   -   The Registrant's Restated Certificate of Incorporation.
                       (Filed as Exhibit 3.1 to Post-Effective Amendment No. 2
                       to  the Company's Registration Statement  on Form 8-A/A
                       dated   May   27,  1994   and  incorporated  herein  by
                       reference.)

     Exhibit 3.2    -  Certificate of Designations of Series B Junior Partici-
                       pating  Preferred  Stock  of  the Registrant. (Filed as
                       Exhibit 3.2 to the Company's Annual Report on Form 10-K
                       for 1995  and incorporated  herein  by reference.)

     Exhibit 3.3    -  The  Registrant's  Bylaws,  as  amended  and   restated
                       effective  March 2,  1995.   (Filed  as Exhibit  3.1 to
                       the Registrant's  Form 8-K  dated  March  3,  1995  and
                       incorporated herein by reference.)

     Exhibit 4.1    -  Indenture  relating  to  the  Registrant's   8%  Senior
                       Subordinated  Convertible  Debentures  due  1998  dated
                       as of  August  29,  1989,  between  the Registrant  and
                       IBJ  Schroder  Bank   &  Trust   Company,  as  Trustee.
                       (Filed as Exhibit 4.1  to  the Company's Annual  Report
                       on  Form  10-K  for  1989  and  incorporated herein  by
                       reference.)

     Exhibit 4.2    -  Form  of  the  Registrant's registered  8%  Senior Sub-
                       ordinated  Convertible Debentures due 1998.   (Filed as
                       Exhibit  4.2  to  Registration  No. 33-28580 and incor-
                       porated herein by reference.)

     Exhibit 4.3    -  Form of the  Registrant's bearer 8% Senior Subordinated
                       Convertible Debentures due 1998. (Filed as  Exhibit 4.3
                       to  Registration   No. 33-28580 and incorporated herein
                       by reference.)

     Exhibit 4.4    -  Form of  the  Registrant's  Common  Stock  Certificate.
                       (Filed  as  Exhibit  4.6  to  Registration No. 33-51120
                       and incorporated herein by reference.)

     Exhibit 4.5    -  Registration Rights  Agreement dated  as  of  March 29,
                       1991 among the Registrant, Holders as  referred therein
                       and members of Offering Committee as referred  therein.
                       (Filed as Exhibit 4.22 to the  Company's Annual  Report
                       on  Form  10-K  for  1990  and  incorporated  herein by
                       reference.)

     Exhibit 4.6    -  Amendment  No. 1, dated  as of  September  1, 1992,  to
                       the Registration  Rights  Agreement  filed  as  Exhibit
                       4.7  hereto. (Filed  as  Exhibit  4.18 to  Registration
                       No. 33-51120 and incorporated herein by reference.)

     Exhibit 4.7    -  Amendment  No. 2, dated  as of  June 1,  1993,  to  the
                       Registration  Rights  Agreement.    (Filed  as  Exhibit
                       4.8  to  Registration  No.  33-65476  and  incorporated
                       herein by reference.)

     Exhibit 4.8    -  Amendment No. 3, dated as of  August 1,  1994,  to  the
                       Registration  Rights  Agreement.  (Filed as Exhibit 4.5
                       to the Registration  No.   33-56029   and  Incorporated
                       herein by reference.)

     Exhibit 4.9    -  Common Stock Issuance Agreement dated as of  August 24,
                       1994 between  the  Company  and BCL Investment Partners
                       L.P.  (Filed as Exhibit 4.24 to  the  Company's  Annual
                       Report on  Form 10-K  for 1994  and incorporated herein
                       by reference.)

     Exhibit 4.10   -  Common Stock  Issuance  Agreement dated August 31, 1995
                       between the Company and  DeepFlex  Production  Partners
                       L.P. (Filed as Exhibit 4.7 to Registration No. 33-62727
                       and  incorporated herein by  reference.)

     Exhibit 4.11   -  Rights Agreement dated as of March 15, 1995,  including
                       Exhibit  A,  "Form  of  Certificate  of  Designations";
                       Exhibit B, "Form  of  Rights Certificate";  Exhibit  C,
                       "Summary  of  Rights  to  Purchase  Preferred  Shares".
                       (Filed  as  Exhibit 4  to  the  Company's  Registration
                       Statement  on  Form   8-A  dated  March  22,  1995  and
                       incorporated  herein  by  reference.)

      Exhibit 10.1* -  Reading  & Bates  1990  Stock  Option Plan.  (Filed  as
                       Appendix  A  to  the  Company's Proxy  Statement  dated
                       April 26, 1993 and incorporated herein by reference.)

      Exhibit 10.2* - 1992  Long-Term   Incentive  Plan  of  Reading  &  Bates
                      Corporation.   (Filed as Exhibit  B to the  Registrant's
                      Proxy  Statement dated  April 27,  1992 and incorporated
                      herein by reference.)

      Exhibit 10.3* - 1995   Long-Term  Incentive  Plan  of  Reading  &  Bates
                      Corporation   (Filed as  Exhibit 99.A  to the  Company's
                      Proxy Statement  dated March  29, 1995 and  incorporated
                      herein by reference.) 

     Exhibit 10.4* -  1995  Director Stock  Option  Plan of  Reading  &  Bates
                      Corporation   (Filed as  Exhibit 99.B  to the  Company's
                      Proxy  Statement dated  March 29, 1995  and incorporated
                      herein by reference.) 

     Exhibit 10.5* -  Director Stock  Option Agreement dated  as of  September
                      14, 1993 between  the Registrant and C. A. Donabedian.  
                      (Filed as Exhibit  10.15 to the Company's Annual  Report
                      on  Form  10-K  for  1993  and  incorporated  herein  by
                      reference.)

     Exhibit 10.6* -  Surrender Letter dated as of February  7, 1995 by C.  A.
                      Donabedian.  (Filed  as  Exhibit  10.33 to the Company's
                      Annual  Report  on  Form  10-K for 1995 and incorporated
                      herein by reference.)

     Exhibit 10.7* -  Director  Stock Option  Agreement dated as  of September
                      14, 1993  between  the  Registrant  and  J.  W.  McLean.  
                      (Filed as Exhibit  10.16 to the Company's Annual  Report
                      on  Form  10-K  for  1993  and  incorporated  herein  by
                      reference.)

     Exhibit 10.8* -  Surrender Letter dated as of February  7, 1995 by J.  W.
                      McLean.     (Filed as  Exhibit  10.35  to the  Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.9* -  Director  Stock Option  Agreement dated  as of September
                      14, 1993 between the Registrant and  R. L. Sandmeyer.   
                      (Filed as Exhibit  10.17 to the Company's Annual  Report
                      on  Form  10-K  for  1993  and  incorporated  herein  by
                      reference.)

     Exhibit 10.10*-  Surrender Letter dated as of February  7, 1995 by R.  L.
                      Sandmeyer.   (Filed as Exhibit   10.37 to the  Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.11*-  Director Stock  Option Agreement dated  as of  September
                      14, 1993  between  the Registrant  and S.  A. Webster.  
                      (Filed as Exhibit  10.18 to the Company's Annual  Report
                      on  Form  10-K  for  1993  and  incorporated  herein  by
                      reference.)

     Exhibit 10.12*-  Surrender Letter dated as of February  7, 1995 by S.  A.
                      Webster.     (Filed as  Exhibit  10.39 to  the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.13*-  Stock  Option Agreement  dated as  of February  7,  1995
                      between  A.L. Chavkin and  the Registrant.     (Filed as
                      Exhibit 10.40  to the  Company's Annual  Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.14*-  Stock  Option Agreement  dated as  of February  7,  1995
                      between Willem Cordia and  the Registrant.    (Filed  as
                      Exhibit 10.41  to the  Company's Annual  Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.15*-  Stock  Option Agreement  dated as  of February  7,  1995
                      between C.A. Donabedian and the Registrant.   (Filed  as
                      Exhibit 10.42  to the  Company's Annual  Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.16*-  Stock  Option Agreement  dated as  of February  7,  1995
                      between  Ted Kalborg  and the  Registrant.    (Filed  as
                      Exhibit 10.43  to the  Company's Annual  Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.17*-  Stock  Option Agreement  dated as  of February  7,  1995
                      between  J.W.  McLean and  the Registrant.     (Filed as
                      Exhibit 10.44  to the  Company's Annual  Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.18*-  Stock  Option Agreement  dated as  of February  7,  1995
                      between R.L.  Sandmeyer and the  Registrant.   (Filed as
                      Exhibit 10.45  to the  Company's Annual  Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.19*-  Stock  Option Agreement  dated as  of February  7,  1995
                      between  S.A. Webster  and the  Registrant.    (Filed as
                      Exhibit 10.46  to the  Company's Annual  Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.20*-  Stock  Option  Agreement dated  as  of  April  19,  1995
                      between M.A.E. Lacqueur and  the Registrant.   (Filed as
                      Exhibit 10.47  to the  Company's Annual  Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.21*-  Stock Option  Agreement with respect  to the 1995  Long-
                      Term Incentive Plan  dated February 6, 1996 between  the
                      Registrant  and Paul B.  Loyd, Jr.     (Filed as Exhibit
                      10.48 to  the Company's Annual Report  on Form 10-K  for
                      1995 and incorporated herein by reference.)

     Exhibit 10.22*-  Amendment No. 1, dated as of  December 3, 1996 to  Stock
                      Option  Agreement  with respect  to  the 1995  Long-Term
                      Incentive Plan between the Registrant and Paul B.  Loyd,
                      Jr.

     Exhibit 10.23*-  Stock Option  Agreement with respect  to the 1992  Long-
                      Term Incentive Plan  dated February 6, 1996 between  the
                      Registrant  and Paul B.  Loyd, Jr.     (Filed as Exhibit
                      10.49  to the Company's Annual  Report on Form 10-K  for
                      1995 and incorporated herein by reference.)

     Exhibit 10.24*-  Amendment No. 1, dated as of  December 3, 1996 to  Stock
                      Option Agreement  with  respect  to the  1992  Long-Term
                      Incentive Plan between the Registrant and Paul B.  Loyd,
                      Jr.

     Exhibit 10.25*-  Employment  Agreement  dated  as  of  November  1,  1991
                      between the  Registrant and L. E.  Voss, Jr.   (Filed as
                      Exhibit 10.34  to the  Company's Annual  Report on  Form
                      10-K for 1991 and incorporated herein by reference.)

     Exhibit 10.26*-  Amendment  No. 1, dated  as of  October 1,  1993, to the
                      Employment  Agreement  dated  as  of  November  1,  1991
                      between the Registrant and L.  E. Voss, Jr.    (Filed as
                      Exhibit 10.22  to the  Company's Annual  Report on  Form
                      10-K for 1993 and incorporated herein by reference.)

     Exhibit 10.27*-  Employment  Agreement  dated  as  of  November  1,  1991
                      between  the Registrant  and T.  W.  Nagle.   (Filed  as
                      Exhibit 10.35  to the  Company's Annual  Report on  Form
                      10-K for 1991 and incorporated herein by reference.)

     Exhibit 10.28*-  Amendment  No. 1, dated  as of  October 1,  1993, to the
                      Employment  Agreement  dated  as  of  November  1,  1991
                      between the  Registrant and  T. W.  Nagle.    (Filed  as
                      Exhibit 10.24  to the  Company's Annual  Report on  Form
                      10-K for 1993 and incorporated herein by reference.)

     Exhibit 10.29*-  Employment  Agreement  dated  as  of  November  1,  1991
                      between the  Registrant  and  C. R.  Ofner.   (Filed  as
                      Exhibit 10.36  to the  Company's Annual  Report on  Form
                      10-K for 1991 and incorporated herein by reference.)

     Exhibit 10.30*-  Amendment  No. 1, dated  as of  October 1,  1993, to the
                      Employment  Agreement  dated  as  of  November  1,  1991
                      between the  Registrant and  C. R.  Ofner.    (Filed  as
                      Exhibit 10.26  to the  Company's Annual  Report on  Form
                      10-K for 1993 and incorporated herein by reference.)

     Exhibit 10.31*-  Employment  Agreement  dated  as  of  November  1,  1991
                      between the Registrant and  D. L. McIntire.   (Filed  as
                      Exhibit 10.37  to the  Company's Annual  Report on  Form
                      10-K for 1991 and incorporated herein by reference.)

     Exhibit 10.32*-  Amendment  No. 1, dated  as of  October 1,  1993, to the
                      Employment  Agreement  dated  as  of  November  1,  1991
                      between the Registrant and D. L.  McIntire.   (Filed  as
                      Exhibit 10.28  to the  Company's Annual  Report on  Form
                      10-K for 1993 and incorporated herein by reference.)

     Exhibit 10.33*-  Employment  Agreement  dated  as  of  November  1,  1991
                      between the  Registrant  and W.  K. Hillin.   (Filed  as
                      Exhibit 10.38  to the  Company's Annual  Report on  Form
                      10-K for 1991 and incorporated herein by reference.)

     Exhibit 10.34*-  Amendment  No. 1, dated  as of  October 1,  1993, to the
                      Employment  Agreement  dated  as  of  November  1,  1991
                      between  the Registrant and  W. K.  Hillin.    (Filed as
                      Exhibit 10.30  to the  Company's Annual  Report on  Form
                      10-K for 1993 and incorporated herein by reference.)

     Exhibit 10.35*-  Employment  Agreement   dated  as  of  January  1,  1992
                      between the Registrant and Paul B.  Loyd, Jr.  (Filed as
                      Exhibit   10.42   to   Registration  No.   33-51120  and
                      incorporated herein by reference.)

     Exhibit 10.36*-  Amendment  No. 1, dated  as of  October 1,  1993, to the
                      Employment  Agreement  dated  as  of   January  1,  1992
                      between the  Registrant and Paul B.  Loyd, Jr.    (Filed
                      as Exhibit  10.32 to the Company's Annual Report on Form
                      10-K for 1993 and incorporated herein by reference.)

     Exhibit 10.37*-  Employment  Agreement  dated  as   of  January  1,  1992
                      between  the Registrant  and C. Kirk Rhein,  Jr.  (Filed
                      as  Exhibit  10.43  to  Registration  No.  33-51120  and
                      incorporated herein by reference.)

     Exhibit 10.38*-  Amendment  No. 1, dated  as of  October 1,  1993, to the
                      Employment  Agreement  dated  as  of  January  1,   1992
                      between the Registrant and C. Kirk  Rhein, Jr.    (Filed
                      as Exhibit 10.34 to the Company's  Annual Report on Form
                      10-K for 1993 and incorporated herein by reference.)

     Exhibit 10.39*-  Employment  Agreement  dated  as  of  January  1,   1992
                      between  the  Registrant and  J.  T.  Angel.   (Filed as
                      Exhibit   10.44  to   Registration   No.   33-51120  and
                      incorporated herein by reference.)

     Exhibit 10.40*-  Agreement  amending  Employment Agreement  dated October
                      7, 1993 between the Registrant and  J. T. Angel.  (Filed
                      as Exhibit 10.36 to the Company's Annual Report on  Form
                      10-K for 1993 and incorporated herein by reference.)

     Exhibit 10.41*-  Restricted Stock Award Agreement dated  December 5, 1995
                      under the  1995 Long-Term Incentive  Plan between L.  E.
                      Voss, Jr. and the Registrant.

     Exhibit 10.42*-  Restricted Stock Award Agreement dated December 5,  1995
                      under the  1995 Long-Term Incentive  Plan between T.  W.
                      Nagle and the Registrant.

     Exhibit 10.43*-  Restricted Stock  Award Agreement dated December 5, 1995
                      under the 1995 Long-Term Incentive  Plan  between  C. R.
                      Ofner and the Registrant.

     Exhibit 10.44*-  Restricted Stock Award Agreement  dated December 5, 1995
                      under the  1995 Long-Term Incentive  Plan between D.  L.
                      McIntire and the Registrant.

     Exhibit 10.45*-  Restricted Stock Award Agreement dated December 5,  1995
                      under the 1995  Long-Term Incentive Plan   between W. K.
                      Hillin and the Registrant.

     Exhibit 10.46*-  Restricted  Stock Award Agreement dated December 3, 1996
                      under  the  1996 Director  Restricted  Stock  Award Plan
                      between A. L. Chavkin and the Registrant.

     Exhibit 10.47*-  Restricted Stock Award  Agreement dated December 3, 1996
                      under  the 1996  Director  Restricted Stock  Award  Plan
                      between C. A. Donabedian and the Registrant.

     Exhibit 10.48*-  Restricted Stock Award Agreement dated  December 3, 1996
                      under  the  1996  Director Restricted  Stock  Award Plan
                      between Ted Kalborg and the Registrant.

     Exhibit 10.49*-  Restricted Stock Award Agreement dated December 3,  1996
                      under  the 1996  Director  Restricted  Stock Award  Plan
                      between M. A. E. Laqueur and the Registrant.

     Exhibit 10.50*-  Restricted Stock  Award Agreement dated December 3, 1996
                      under  the 1996  Director  Restricted Stock  Award  Plan
                      between J. W. McLean and the Registrant.

     Exhibit 10.51*-  Restricted Stock Award Agreement  dated December 3, 1996
                      under  the  1996 Director  Restricted  Stock Award  Plan
                      between R. L. Sandmeyer and the Registrant.

     Exhibit 10.52*-  Restricted Stock Award Agreement dated December 3,  1996
                      under the 1995 Long-Term Incentive Plan between Paul  B.
                      Loyd, Jr. and the Registrant.

     Exhibit 10.53*-  Stock Option Agreement dated December 3, 1996 under  the
                      1995 Long-Term  Incentive Plan between  T. W. Nagle  and
                      the Registrant.

     Exhibit 10.54*-  Restricted Stock Award Agreement  dated December 3, 1996
                      under the  1995 Long-Term Incentive  Plan between C.  R.
                      Ofner and the Registrant.

     Exhibit 10.55*-  Restricted Stock Award Agreement dated December 3,  1996
                      under the  1995 Long-Term Incentive  Plan  between D. L.
                      McIntire and the Registrant.

     Exhibit 10.56*-  Restricted  Stock Award Agreement dated December 3, 1996
                      under the  1995 Long-Term Incentive  Plan between W.  K.
                      Hillin and the Registrant.

     Exhibit 10.57 -  Agreement dated as of August 31, 1991 among  Registrant,
                      Arcade  Shipping AS  and  Sonat Offshore  Drilling  Inc.
                      (Filed as Exhibit  10.40 to the Company's Annual  Report
                      on  Form  10-K  for  1991  and  incorporated  herein  by
                      reference.)

     Exhibit 10.58 -  Facility  Agreement  dated  February  21,  1991  between
                      Arcade Drilling AS,  Chase Investment Bank  Limited, The
                      Chase  Manhattan  Bank, N.A.  and  others.    (Filed  as
                      Exhibit   10.51  to   Registration   No.   33-51120  and
                      incorporated herein by reference.)

     Exhibit 10.59 -  Amendment Agreement  dated November 30, 1995 to Facility
                      Agreement  dated   February  21,  1991  between   Arcade
                      Drilling  AS, Chase  Investment Bank  Limited, The Chase
                      Manhattan  Bank, N.A.  and others.   (Filed  as  Exhibit
                      10.71 to the  Company's Annual  Report on Form 10-K  for
                      1995 and incorporated herein by reference.)

     Exhibit 10.60 -  Second Amendment  Agreement dated October, 1996  between
                      Arcade Drilling AS,  Chase Investment Bank Limited,  The
                      Chase Manhattan Bank, N.A. and others.

     Exhibit 10.61 -  Assignment  Agreement "F.  G.  McClintock"  dated as  of
                      August 24, 1994  between the Company and BCL  Investment
                      Partners L.P.   (Filed as Exhibit 10.55 to the Company's
                      Annual Report  on Form  10-K for  1994 and  incorporated
                      herein by reference.)

     Exhibit 10.62 -  Assignment  Agreement "F.  G.  McClintock" dated  as  of
                      September 27, 1994 between the Company and BT  Advisors,
                      Inc. (Filed  as Exhibit  10.56 to  the Company's  Annual
                      Report on Form 10-K for 1994 and incorporated herein  by
                      reference.)

     Exhibit 10.63 -  Assignment  Agreement  "C.  E.  Thornton"  dated  as  of
                      August 24, 1994  between the Company and BCL  Investment
                      Partners L.P. (Filed  as Exhibit 10.57 to the  Company's
                      Annual Report  on Form  10-K for  1994 and  incorporated
                      herein by reference.)

     Exhibit 10.64 -  Assignment  Agreement  "C.  E.  Thornton"  dated  as  of
                      September 27, 1994 between the Company and BT  Advisors,
                      Inc. (Filed  as Exhibit  10.58 to  the Company's  Annual
                      Report on Form 10-K for  1994 and incorporated herein by
                      reference.)

     Exhibit 10.65 -  Assignment  Agreement "George  H. Galloway"  dated as of
                      August  24,  1994   between  the  Company  and   Elliott
                      Associates  L.P.   (Filed  as   Exhibit  10.59   to  the
                      Company's  Annual  Report on  Form  10-K  for  1994  and
                      incorporated herein by reference.)

     Exhibit 10.66 -  Memorandum of  Agreement dated August  31, 1995  between
                      FPS II, Inc., as holder of  legal title for the  benefit
                      of  DeepFlex Production  Partners,  L.P. and  Reading  &
                      Bates (U.K.)  Limited, a  subsidiary of  the Registrant.
                      (Filed  as  Exhibit  10.2  to  the  Company's  Quarterly
                      Report on  Form 10-Q for the  Third Quarter  of 1995 and
                      incorporated herein by reference.)

     Exhibit 10.67 -  Agreement for the  sale and purchase of Semi-Submersible
                      Emergency Support Vessel Iolair dated September 8,  1995
                      between  BP Exploration  Operating  Company  Limited and
                      Reading  &  Bates (Caledonia)  Limited, a  subsidiary of
                      the  Registrant.     (Filed  as  Exhibit  10.3  to   the
                      Company's Quarterly  Report on Form  10-Q for the  Third
                      Quarter of 1995 and incorporated herein by reference.)

     Exhibit 10.68 -  Mortgage  of a  Ship  dated September  8,  1995  between
                      Reading &  Bates (Caledonia)  Limited,  a subsidiary  of
                      the  Registrant,  and  BP Exploration  Operating Company
                      Limited.    (Filed as  Exhibit  10.4  to  the  Company's
                      Quarterly Report on  Form 10-Q for the Third Quarter  of
                      1995 and incorporated herein by reference.)

     Exhibit 10.69 -  Mortgage  of a  Ship  dated September  8,  1995  between
                      Reading &  Bates (Caledonia)  Limited,  a subsidiary  of
                      the  Registrant, and  Britoil plc.   (Filed  as  Exhibit
                      10.5 to the  Company's Quarterly Report on Form 10-Q for
                      the Third  Quarter of  1995 and  incorporated herein  by
                      reference.)

     Exhibit 10.70 -  Deed  of  Covenant  dated  September  8,  1995   between
                      Reading &  Bates (Caledonia)  Limited,  a subsidiary  of
                      the  Registrant, and  BP Exploration  Operating  Company
                      Limited.    (Filed as  Exhibit  10.6  to  the  Company's
                      Quarterly  Report on Form  10-Q for the Third Quarter of
                      1995 and incorporated herein by reference.)

     Exhibit 10.71 -  Deed  of  Covenant  dated  September  8,  1995   between
                      Reading &  Bates (Caledonia)  Limited,  a subsidiary  of
                      the  Registrant,  and  Britoil  Public Limited  Company.
                      (Filed  as  Exhibit  10.7  to  the  Company's  Quarterly
                      Report on  Form 10-Q for the  Third Quarter  of 1995 and
                      incorporated herein by reference.)

     Exhibit 10.72 -  Performance  Guarantee  dated September  8, 1995  by the
                      Registrant  in   favour  of   BP  Exploration  Operating
                      Company  Limited.    (Filed  as  Exhibit  10.8  to   the
                      Company's Quarterly  Report on Form  10-Q for the  Third
                      Quarter of 1995 and incorporated herein by reference.)

     Exhibit 10.73 -  Performance Guarantee  dated September  8,  1995 by  the
                      Registrant in favour of Britoil plc.  (Filed as  Exhibit
                      10.9  to the Company's Quarterly Report on Form 10-Q for
                      the Third  Quarter of  1995 and  incorporated herein  by
                      reference.)

     Exhibit 10.74 -  Initial  Services  Agreement  dated  September  8,  1995
                      between Britoil  Public Limited  Company  and Reading  &
                      Bates   (Caledonia)  Limited,   a   subsidiary   of  the
                      Registrant.   (Filed as Exhibit  10.10 to the  Company's
                      Quarterly Report on  Form 10-Q for the Third Quarter  of
                      1995 and incorporated herein by reference.)

     Exhibit 10.75 -  Heads of Agreement for the provision of Vessel  Services
                      dated September 8, 1995  between Britoil Public  Limited
                      Company,  Reading   &  Bates   (Caledonia)  Limited,   a
                      subsidiary  of   the  Registrant,  and  the  Registrant.
                      (Filed  as  Exhibit  10.11  to the  Company's  Quarterly
                      Report on  Form 10-Q for the  Third Quarter  of 1995 and
                      incorporated herein by reference.)

     Exhibit 10.76 -  Credit Facility Agreement dated  November 16, 1995 among
                      the   Registrant,  Reading  &  Bates  Drilling  Co.  and
                      Reading  & Bates  Exploration Co.,  subsidiaries  of the
                      Registrant,  and  Christiania Bank  Og  Kreditkasse,  as
                      agent.      (Filed as  Exhibit 10.101  to  the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.77 -  Guarantee dated November  28, 1995 by the Registrant  in
                      favor of Christiania  Bank Og  Kreditkasse.   (Filed  as
                      Exhibit 10.102  to the Company's  Annual Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.78 -  First  Preferred  Mortgage on  the  "Jack  Bates"  dated
                      November 28, 1995 between Reading & Bates Drilling  Co.,
                      a  subsidiary  of the  Registrant, and  Wilmington Trust
                      Company,  as Indenture  Trustee.     (Filed  as  Exhibit
                      10.103  to the Company's  Annual Report on Form 10-K for
                      1995 and incorporated herein by reference.)

     Exhibit 10.79 -  First  Preferred Mortgage  on the  "D.R. Stewart"  dated
                      November 28,  1995 between  Reading &  Bates Exploration
                      Co.,  a  subsidiary of  the  Registrant, and  Wilmington
                      Trust  Company,  as  Indenture  Trustee.      (Filed  as
                      Exhibit 10.104  to the Company's  Annual Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.80 -  Indenture   of  Trust  dated  November  16,  1995  among
                      Reading  &  Bates  Drilling  Co.  and  Reading  &  Bates
                      Exploration  Co., subsidiaries  of  the  Registrant, and
                      Wilmington  Trust   Company,  as  Indenture  Trustee.   
                      (Filed as Exhibit 10.105 to the Company's Annual  Report
                      on  Form  10-K  for  1995  and  incorporated  herein  by
                      reference.)

     Exhibit 10.81 -  General  Assignment  with respect  to  the  "Jack Bates"
                      dated  November 28,  1995 by  Reading &  Bates  Drilling
                      Co.,  a  subsidiary  of  the  Registrant,  in  favor  of
                      Christiania  Bank Og Kreditkasse, as agent.    (Filed as
                      Exhibit 10.106  to the Company's  Annual Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.82 -  General Assignment with  respect to  the "D.R.  Stewart"
                      dated November 28,  1995 by Reading & Bates  Exploration
                      Co.,  a  subsidiary  of  the  Registrant,  in  favor  of
                      Christiania Bank Og  Kreditkasse, as agent.    (Filed as
                      Exhibit 10.107  to the Company's  Annual Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.83 -  Assignment of  Insurances  with  respect  to  the  "Jack
                      Bates"  dated  November 28,  1995  by  Reading  &  Bates
                      Drilling Co., a  subsidiary of the Registrant, in  favor
                      of Christiania Bank  Og Kreditkasse, as agent.    (Filed
                      as  Exhibit 10.108  to the  Company's Annual  Report  on
                      Form  10-K   for  1995   and   incorporated  herein   by
                      reference.)

     Exhibit 10.84 -  Assignment  of  Insurances  with  respect to  the  "D.R.
                      Stewart"  dated November  28, 1995  by Reading  &  Bates
                      Exploration Co.,  a  subsidiary  of the  Registrant,  in
                      favor  of Christiania  Bank  Og Kreditkasse,  as  agent.
                      (Filed as Exhibit 10.109 to the Company's Annual  Report
                      on  Form  10-K  for  1995  and  incorporated  herein  by
                      reference.)

     Exhibit 10.85 -  Credit  Agreement  dated as  of  April  30,  1996  among
                      Registrant,  Reading  &  Bates  Drilling  Co.,   certain
                      lending institutions  named therein, Credit Lyonnais New
                      York  Branch,  as  co-agent,   and  Christiana  Bank  og
                      Kreditkasse, New York Branch, as agent.

      Exhibit 10.86 -  Security  Agreement dated  as of  April 30,  1996  among
                      Reading   &  Bates   Drilling   Co.,  Reading   &  Bates
                      Exploration Co., Reading & Bates (A) Pty. Ltd.,  Reading
                      and Bates Borneo Drilling Co., Ltd, and Christiana  Bank
                      og Kreditkasse, New York Branch, as collateral agent.

     Exhibit 10.87 -  Subsidiary  Guaranty dated  as  of  April 30,  1996   by
                      Reading &  Bates Exploration  Co., Reading  & Bates  (A)
                      Pty. Ltd.,  and Reading and  Bates Borneo Drilling  Co.,
                      Ltd.

     Exhibit 10.88 -  First Preferred  Mortgage on the  "D. R. STEWART"  dated
                      April 30, 1996  between Reading & Bates Exploration  Co.
                      in favor of Wilmington Trust Company,  as trustee.

     Exhibit 10.89 -  First  Preferred  Mortgage on  the  "JACK  BATES"  dated
                      April 30, 1996 between Reading &  Bates Drilling Co.  in
                      favor of Wilmington Trust Company,  as trustee.

     Exhibit 10.90 -  First  Preferred Mortgage  on  the "W.  D.  KENT"  dated
                      April 30, 1996  between Reading & Bates Exploration  Co.
                      in favor of Wilmington Trust Company,  as trustee.

     Exhibit 10.91-   Indenture  of  First  Naval  Mortgage  on  the  "CHARLEY
                      GRAVES" dated April  30, 1996 between Reading and  Bates
                      Borneo   Drilling  Co.  Ltd.  and   Christiana  Bank  og
                      Kreditkasse, New York Branch, as mortgagee.

     Exhibit 10.92-   First  Priority Mortgage  on  the "RON  TAPPMEYER" dated
                      April 30, 1996  between Reading  & Bates  (A) Pty.  Ltd.
                      and Christiana Bank og Kreditkasse, New York Branch,  as
                      mortgagee. 

     Exhibit 10.93-   Deed of Covenant on the "J.  W. MCLEAN" dated April  30,
                      1996   between  Reading   &  Bates   Drilling  Co.   and
                      Christiana Bank  og  Kreditkasse,  New York  Branch,  as
                      mortgagee.

     Exhibit 10.94-   Indenture  of Trust  dated as  of  April 30,  1996 among
                      Reading   &  Bates   Drilling  Co.,   Reading   &  Bates
                      Exploration  Co.,  and  Wilmington  Trust   Company,  as
                      trustee.

     Exhibit 10.95 -  Collateral Assignment of Insurance dated April 30,  1996
                      with  respect   to the  "JACK BATES"  between Reading  &
                      Bates  Drilling  Co.and  Wilmington  Trust  Company,  as
                      trustee. 

     Exhibit 10.96 -  Collateral Assignment of Insurance dated April 30,  1996
                      with respect  to the "D.  R. STEWART" between Reading  &
                      Bates Exploration Co.  and Wilmington Trust Company,  as
                      trustee. 

     Exhibit 10.97 -  Collateral Assignment of Insurance dated  April 30, 1996
                      with respect   to  the "W.  D. KENT"  between Reading  &
                      Bates Exploration Co.  and Wilmington Trust Company,  as
                      trustee. 

     Exhibit 10.98 -  Collateral Assignment of Insurance  dated April 30, 1996
                      with  respect  to the  "CHARLEY GRAVES"  between Reading
                      and Bates Borneo Drilling Co., Ltd. and Christiana  Bank
                      og Kreditkasse, New York Branch, as agent.

     Exhibit 10.99 -  Collateral Assignment of Insurance  dated April 30, 1996
                      with respect to the "RON TAPPMEYER" between Reading  and
                      Bates (A) Pty. Ltd. and Christiana Bank og  Kreditkasse,
                      New York Branch, as agent.

     Exhibit 10.100-  Collateral Assignment of  Insurance dated April 30, 1996
                      with respect to the  "J. W. MCLEAN"  between Reading and
                      Bates Borneo Drilling  Co., Ltd. and Christiana Bank  og
                      Kreditkasse, New York Branch, as agent.

     Exhibit 10.101-  First Amendment  dated  as  of July  9, 1996  to  Credit
                      Agreement dated as  of April 30, 1996 among  Registrant,
                      Reading  &   Bates   Drilling   Co.,   certain   lending
                      institutions  named therein,  Credit Lyonnais  New  York
                      Branch,   as    co-agent,   and   Christiana   Bank   og
                      Kreditkasse, New York Branch, as agent.

     Exhibit 10.102-  Subsidiary  Assumption  Agreement  dated as  of  July 9,
                      1996 by RB Drilling Co. and HRB Rig Corporation.

     Exhibit 10.103-  Indenture of First Naval Mortgage  on the "J. W. MCLEAN"
                      dated July  9, 1996 by Reading  & Bates  Drilling Co. in
                      favor  of  Christiana  Bank  og  Kreditkasse,  New  York
                      Branch, as mortgagee.

     Exhibit 10.104-  First Preferred Mortgage  on the "HARVEY H. WARD"  dated
                      July  9,  1996  by  HRB  Rig  Corporation  in  favor  of
                      Wilmington Trust Company,  as trustee.
 
     Exhibit 10.105-  Amendment No. 1 to Indenture  of First Naval Mortgage on
                      the  "CHARLIE GRAVES" dated July 9, 1996  by Reading and
                      Bates Borneo Drilling  Co., Ltd. in favor of  Christiana
                      Bank og Kreditkasse, New York Branch, as mortgagee.

     Exhibit 10.106-  Amendment  to  First Preferred  Mortgage  on  the  "JACK
                      BATES" dated  July 9, 1996 by  Reading & Bates  Drilling
                      Co. in favor of Wilmington Trust Company, as trustee. 

     Exhibit 10.107-  Amendment  to First  Preferred Mortgage  on the  "D.  R.
                      STEWART"  dated  July   9,  1996  by  Reading  &   Bates
                      Exploration  Co.  in favor of Wilmington Trust  Company,
                      as trustee. 

     Exhibit 10.108-  Amendment  to First  Preferred Mortgage  on the  "W.  D.
                      KENT" dated July 9, 1996 by Reading & Bates  Exploration
                      Co. in favor of Wilmington Trust Company, as trustee. 

     Exhibit 10.109-  Collateral  Assignment of  Insurance dated  July 9, 1996
                      with  respect  to the "HARVEY H. WARD"   between HRB Rig
                      Corporation and Wilmington Trust Company, as trustee. 

     Exhibit 10.110-  Collateral Assignment  of Insurance dated  July 9,  1996
                      with respect   to the "RIG  41" between  RB Drilling Co.
                      and Christiana Bank og Kreditkasse, New York Branch,  as
                      agent.

     Exhibit 10.111-  Amended  and Restated  Indenture of  Trust dated  as  of
                      July  9,  1996  among  Reading  &  Bates  Drilling  Co.,
                      Reading &  Bates Exploration Co.,   HRB Rig  Corporation
                      and Wilmington Trust Company, as trustee.

     Exhibit 10.112-  Second Amendment dated as of August  30, 1996 to  Credit
                      Agreement dated as  of April 30, 1996 among  Registrant,
                      Reading  &   Bates   Drilling   Co.,   certain   lending
                      institutions  named therein,  Credit Lyonnais  New  York
                      Branch,   as    co-agent,   and   Christiana   Bank   og
                      Kreditkasse, New York Branch, as agent.

     Exhibit 10.113-  Subsidiary Assumption Agreement dated  as of August  30,
                      1996 by Reading & Bates Development Co.

     Exhibit 10.114-  Subsidiary  Guaranty dated  as  of August  30,  1996  by
                      Reading & Bates Development Co.

     Exhibit 10.115-  Indenture of  First Naval Mortgage  on "SEILLEAN"  dated
                      August 30, 1996 by  Reading & Bates  Development Co.  in
                      favor  of  Christiana  Bank  og  Kreditkasse,  New  York
                      Branch, as mortgagee.

     Exhibit 10.116-  Collateral  Assignment  of Insurance  dated  August  30,
                      1996 with respect  to the  "SEILLEAN"  between Reading &
                      Bates   Development   Co.   and   Christiana   Bank   og
                      Kreditkasee, New York Branch, as agent. 

     Exhibit 10.117-  Credit Agreement  dated as  of November  13, 1996  among
                      Registrant,  Reading  &  Bates  Drilling  Co.,   certain
                      lending institutions  named therein, Banque Indosuez, as
                      documentation agent,  Credit Lyonnais  New York  Branch,
                      as   documentation  agent,   and  Christiana   Bank   og
                      Kreditkasse, New  York Branch,  as administrative agent,
                      arranger and security trustee.

     Exhibit 10.118-  Security Agreement dated  as of November 13, 1996  among
                      Reading   &  Bates   Drilling  Co.,   Reading  &   Bates
                      Exploration Co., Reading  & Bates Offshore, Limited, HRB
                      Rig  Corporation,    Reading  &  Bates  (A)  Pty.  Ltd.,
                      Reading  and  Bates  Borneo   Drilling  Co.,  Ltd,   and
                      Christiana  Bank  og Kreditkasse,  New  York Branch,  as
                      collateral agent.

     Exhibit 10.119-  Subsidiary Guaranty dated  as of  November 13, 1996   by
                      Reading &  Bates Exploration  Co., Reading  & Bates  (A)
                      Pty. Ltd., Reading and Bates Borneo Drilling Co.,  Ltd.,
                      Reading  &   Bates  Offshore,   Limited   and  HRB   Rig
                      Corporation.

     Exhibit 10.120-  First Preferred  Mortgage on the  "D. R. STEWART"  dated
                      November  13, 1996  between Reading  & Bates Exploration
                      Co.  in favor  of Christiana  Bank og  Kreditkasse,  New
                      York Branch, as security trustee.

     Exhibit 10.121-  First Preferred  Mortgage  on  the  "JACK  BATES"  dated
                      November 13, 1996  between Reading & Bates Drilling  Co.
                      in favor  of Christiana  Bank og  Kreditkasse, New  York
                      Branch, as security trustee.

      Exhibit 10.122-  First  Preferred Mortgage  on  the "W.  D.  KENT"  dated
                       November 13,   1996 between Reading & Bates  Exploration
                       Co.  in favor  of  Christiana Bank  og  Kreditkasse,  as
                       security trustee.

      Exhibit 10.123-  First  Preferred Mortgage  on the  "RANDOLPH YOST" dated
                       November 13,  1996 between Reading & Bates Drilling  Co.
                       in favor of Christiana Bank og Kreditkasse, as  security
                       trustee.

      Exhibit 10.124-  First Preferred  Mortgage  on the  "GEORGE H.  GALLOWAY"
                       dated  November  13,    1996  between  Reading  &  Bates
                       Offshore,  Limited  in   favor  of  Christiana  Bank  og
                       Kreditkasse, as security trustee.

      Exhibit 10.125-  First  Preferred  Mortgage  on the  "F.  G.  MCCLINTOCK"
                       dated  November  13,    1996  between  Reading  &  Bates
                       Offshore,  Limited   in  favor  of  Christiana  Bank  og
                       Kreditkasse, as security trustee.

      Exhibit 10.126-  First  Preferred Mortgage  on the  "J. T.  ANGEL"  dated
                       November 13,   1996 between Reading & Bates Drilling Co.
                       in favor of Christiana Bank og Kreditkasse, as  security
                       trustee.

      Exhibit 10.127-  First Preferred Mortgage on the "ROGER W. MOWELL"  dated
                       November 13,  1996  between Reading & Bates Drilling Co.
                       in favor of Christiana Bank og Kreditkasse, as  security
                       trustee.

      Exhibit 10.128-  First Preferred Mortgage  on the "HARVEY H. WARD"  dated
                       November 13,  1996 between  HRB Rig Corporation in favor
                       of Christiana Bank og Kreditkasse, as security trustee.

      Exhibit 10.129-  Indenture  of  First  Naval  Mortgage  on  the  "CHARLEY
                       GRAVES"  dated November  13,  1996  between Reading  and
                       Bates Borneo  Drilling Co. Ltd.  and Christiana Bank  og
                       Kreditkasse, New York Branch, as mortgagee.

      Exhibit 10.130-  Indenture of First  Naval Mortgage on the "J. W. MCLEAN"
                       dated  November  13,   1996  between  Reading   &  Bates
                       Drilling  Co. and  Christiana Bank  og Kreditkasse,  New
                       York Branch, as mortgagee.

     Exhibit 10.131-  Indenture of First Naval  Mortgage on the "RIG 41" dated
                      November  13,  1996  between  Reading  and Bates  Borneo
                      Drilling Co.  Ltd. and Christiana  Bank og  Kreditkasse,
                      New York Branch, as mortgagee.

     Exhibit 10.132-  First  Priority Mortgage  on the  "RON  TAPPMEYER" dated
                      November 13, 1996 between Reading & Bates  (A) Pty. Ltd.
                      and Christiana Bank og Kreditkasse, New York Branch,  as
                      mortgagee. 

     Exhibit 10.133-  Pledge Agreement dated  as of November 13, 1996  between
                      Registrant  and Christiana Bank og Kreditkasse, New York
                      Branch, as collateral agent.

     Exhibit 10.134-  Letter  of Credit  Agreement dated  as of  December  30,
                      1996 between Registrant,  Reading & Bates  Drilling Co.,
                      and Christiana Ban og Kreditkasse, New York Branch.

     Exhibit 10.135-  Memorandum  of Agreement dated November 28, 1995 between
                      Reading   and   Bates,  Inc.,   a   subsidiary   of  the
                      Registrant, and Deep  Sea Investors, L.L.C.   (Filed  as
                      Exhibit 10.110  to the Company's  Annual Report on  Form
                      10-K for 1995 and incorporated herein by reference.)

     Exhibit 10.136-  Bareboat Charter  "M.G. Hulme,  Jr." dated  November 28,
                      1995 between  Deep Sea Investors,  L.L.C. and Reading  &
                      Bates Drilling  Co., a  subsidiary of  the Registrant.  
                      (Filed as Exhibit 10.111 to the Company's Annual  Report
                      on  Form  10-K  for  1995  and  incorporated  herein  by
                      reference.)

     Exhibit 10.137-  Purchase  and  Sale  Agreement  dated  October  18, 1995
                      between  Enserch Exploration,  Inc. and Reading  & Bates
                      Development  Co.,  a  subsidiary  of  the  Registrant.  
                      (Filed  as  Exhibit   10.112  to  the  Company's  Annual
                      Report on  Form 10-K for 1995 and incorporated herein by
                      reference.)

     Exhibit 10.138-  Assignment and  Bill of  Sale (OCS-G-8504)  effective as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.   (Filed as  Exhibit 10.113 to the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.139-  Assignment and Bill of Sale (OCS-G-8012 effective as  of
                      May  1,  1995  between  Enserch  Exploration,  Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.    (Filed as Exhibit 10.114 to the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.140-  Assignment and Bill  of Sale (OCS-G- 7049) effective  as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.   (Filed as Exhibit  10.115 to the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.141-  Assignment and Bill  of Sale (OCS-G-8010)  effective  as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.    (Filed as Exhibit 10.116 to the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.142-  Assignment  and Bill of Sale  (OCS-G-13696) effective as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.   (Filed as Exhibit 10.117  to the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.) 

     Exhibit 10.143-  Assignment  and Bill of Sale  (OCS-G-13171) effective as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.    (Filed as Exhibit 10.118 to the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.144-  Assignment and Bill  of Sale  (OCS-G-8005) effective  as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.  (Filed  as Exhibit 10.119 to the  Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.145-  Assignment and Bill  of Sale  (OCS-G-8000) effective  as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.   (Filed  as Exhibit 10.120 to the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.146-  Assignment and Bill  of Sale  (OCS-G-8006) effective  as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.  (Filed  as Exhibit 10.121 to the  Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.147-  Assignment and Bill  of Sale  (OCS-G-8876) effective  as
                      of May  1, 1995  between Enserch  Exploration, Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.  (Filed  as Exhibit 10.122 to the  Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.148-  Payment  Agreement  dated  October   18,  1995   between
                      Enserch   Exploration,   Inc.  and   Reading   &   Bates
                      Development  Co.,  a  subsidiary  of  the  Registrant.  
                      (Filed as Exhibit 10.123 to the Company's Annual  Report
                      on  Form  10-K  for  1995  and  incorporated  herein  by
                      reference.)

     Exhibit 10.149-  Mortgage and Security  Agreement dated October 18,  1995
                      between  Enserch Exploration,  Inc. and  Reading & Bates
                      Development  Co., a  subsidiary  of the  Registrant.    
                      (Filed as Exhibit 10.124 to the Company's Annual  Report
                      on  Form  10-K  for  1995  and  incorporated  herein  by
                      reference.)

     Exhibit 10.150-  Operating Agreement  made effective  as of  May 1,  1995
                      among Enserch Exploration, Inc.,  Mobil Oil Corporation,
                      Mobil  Oil exploration  & Producing  Southeast Inc.  and
                      Reading &  Bates Development  Co., a  subsidiary of  the
                      Registrant.   (Filed  as Exhibit 10.125 to the Company's
                      Annual Report  on Form  10-K for  1995 and  incorporated
                      herein by reference.)

     Exhibit 10.151-  Option  Agreement  made effective  as  of  May  1,  1995
                      between Enserch  Exploration, Inc. and  Reading &  Bates
                      Development  Co.,  a  subsidiary   of  the   Registrant.
                      (Filed as Exhibit 10.126 to the Company's Annual  Report
                      on  Form  10-K  for  1995  and  incorporated  herein  by
                      reference.)

     Exhibit 10.152-  Participation Agreement  dated December  4, 1996 between
                      Santa  Fe Energy  Resources, Inc.  and Reading  &  Bates
                      Development Co.

     Exhibit 10.153-  Assignment of Record Title  Interest effective  December
                      11, 1996  between Santa  Fe Energy  Resources, Inc.  and
                      Reading &  Bates Development Co.  with respect to  OCS-G
                      16404.

     Exhibit 10.154-  Assignment of  Record Title  Interest effective December
                      11, 1996  between Santa  Fe Energy  Resources, Inc.  and
                      Reading &  Bates Development Co.  with respect to  OCS-G
                      16405.

     Exhibit 10.155-  Assignment of  Record Title Interest effective  December
                      11, 1996  between Santa  Fe Energy  Resources, Inc.  and
                      Reading &  Bates Development Co.  with respect to  OCS-G
                      16567.

     Exhibit 10.156-  Assignment of Record Title  Interest effective  December
                      11, 1996  between Santa  Fe Energy  Resources, Inc.  and
                      Reading &  Bates Development Co.  with respect to  OCS-G
                      16568.

     Exhibit 10.157-  Assignment of  Record Title  Interest effective December
                      11, 1996  between Santa  Fe Energy  Resources, Inc.  and
                      Reading &  Bates Development Co.  with respect to  OCS-G
                      16578.

     Exhibit 10.158-  Assignment of  Record Title Interest effective  December
                      11, 1996  between Santa  Fe Energy  Resources, Inc.  and
                      Reading &  Bates Development Co.  with respect to  OCS-G
                      16579.

     Exhibit 10.159-  Assignment of Record Title  Interest effective  December
                      11, 1996  between Santa  Fe Energy  Resources, Inc.  and
                      Reading &  Bates Development Co.  with respect to  OCS-G
                      17251.

     Exhibit 10.160-  Assignment of  Record Title  Interest effective  January
                      2,  1997 between  Santa Fe  Energy Resources,  Inc.  and
                      Reading &  Bates Development Co.  with respect to  OCS-G
                      17355.

     Exhibit 10.161-  Joint Venture Agreement  dated December  16, 1996  among
                      Shell Deepwater Development Inc.,  SOI Finance Inc.  and
                      Reading & Bates Development Co.

     Exhibit 10.162-  Limited   Liability  Company  Agreement  between  Conoco
                      Development Company and RB Deepwater Exploration Inc.

     Exhibit 10.163-  Joint Venture Agreement dated February  22, 1996 between
                      INTEC Engineering,  Inc. and Reading & Bates Development
                      Co.   

     Exhibit 10.164-  Loan  Agreement dated as  of December 14, 1996 among TRB
                      Holding Corporation, Reading &  Bates (U.K.) Limited and
                      Nissho Iwai Europe PLC.

     Exhibit 10.165-  First Naval  Mortgage on  the "SEILLEAN" dated  December
                      14, 1996  between TRB  Holding Corporation  in favor  of
                      Nissho Iwai Europe PLC.

     Exhibit 10.166-  Collateral  Assignment  of  Deposit Account,  Pledge and
                      Security  Agreement dated December 14, 1996 with respect
                      to the "SEILLEAN"  between TRB  Holding Corporation  and
                      Nissho Iwai Europe PLC.

     Exhibit 10.167-  Assignment  of Insurances  dated December  14, 1996 with
                      respect   to   the   "SEILLEAN"   between  TRB   Holding
                      Corporation  and  Reading  &  Bates  (U.K.)  Limited and
                      Nissho Iwai Europe PLC.

     Exhibit 11    -  Computation of Earnings Per Common Share

     Exhibit 21    -  Schedule of Subsidiaries of the Company

     Exhibit 23    -  Consent of Arthur Andersen LLP


     Exhibit 27    -  Financial  Data  Schedule.    (Exhibit  27  is  being
                      submitted  as  an  exhibit  only  in  the  electronic
                      format  of this  Annual  Report on  Form  10-K  being
                      submitted    to    the   Securities    and   Exchange
                      Commission.)


     Exhibit 99    -  Annual Report on Form 11-K with respect to Reading  &
                      Bates Savings  Plan.   (To be  filed by amendment  to
                      the Annual Report on Form 10-K.)


             Instruments with respect to  certain long-term obligations of the
      Company  are  not  being filed  as  exhibits  hereto  as the  securities
      authorized thereunder do not  exceed 10% of the Company's  total assets.
      The  Company agrees  to furnish a  copy of  each such  instrument to the
      Securities and Exchange Commission upon its request.
                                                
      *  Management contract  or compensatory plan or arrangement  required to
      be filed  as an exhibit  pursuant to the  requirements of Item  14(c) of
      Form 10-K.

  (b) Reports on Form 8-K

      There were six Current Reports on Form 8-K filed during the three months
      ended  December 31,  1996.   A  Current Report  on Form  8-K was:  filed
      October 7,  1996 announcing  a voluntary commission-free  oddlot selling
      program  for shareholders  who  owned  fewer  than  100  shares  of  the
      Company's common  stock; filed October 15, 1996 disclosing the Company's
      3rd  quarter  1996  earnings;  filed October  31,  1996  announcing  the
      formation  of a joint venture between the  Company and Conoco to build a
      DP Class 3 Drillship; filed November 8, 1996 announcing the extension of
      the  commission-free oddlot  selling  program; filed  November 14,  1996
      disclosing  the closing  of  a new  $300  million credit  facility  with
      Christiania Bank og Kreditkasse; and  filed November 25, 1996 announcing
      the retirement of L.E. (Sonny) Voss, Jr. as President of Reading & Bates
      Drilling Co. and the appointment of Andrew Bakonyi as its new President.



                                  SIGNATURES


      Pursuant to the  requirements of Section 13  or 15(d) of  the Securities
Exchange Act of 1934, the Registrant has  duly caused this report to be signed
by the undersigned, thereunto duly authorized on March 21, 1997.

                                       READING & BATES CORPORATION


                                       By    Paul B. Loyd, Jr.    
                                          --------------------------
                                          Paul B. Loyd, Jr.
                                          President, Chief Executive
                                          Officer, Chairman and Director


Pursuant to  the requirements of  the Securities  Exchange Act  of l934,  this
report  has been  signed  below by  the  following persons  on  behalf of  the
Registrant in the capacities indicated on March 21, 1997.



By  Paul B. Loyd Jr.                   By  Tim W. Nagle
   --------------------------             -------------------------
    Paul B. Loyd, Jr.                      Tim W. Nagle
    President, Chief Executive             Executive Vice President,
    Officer,                               Finance and Administration
    Chairman and Director                  Principal Accounting Officer
                                           

By  Charles A. Donabedian              By  Macko A. E. Laqueur 
   --------------------------             --------------------------
    Charles A. Donabedian                  Macko A. E. Laqueur
    Director                               Director


By                                     By  Ted Kalborg
   --------------------------             --------------------------
    J. W. McLean                           Ted Kalborg
    Director                               Director



By  Arnold L. Chavkin                  By  Robert L. Sandmeyer
   --------------------------             --------------------------
    Arnold L. Chavkin                      Robert L. Sandmeyer
    Director                               Director


                                                                 Exhibit 10.22

                     AMENDMENT TO READING & BATES CORPORATION
                              STOCK OPTION AGREEMENT


         This Amendment to the Stock  Option Agreement between Reading & Bates
   Corporation ("Company")  and Paul B. Loyd,  Jr. ("Optionee") is made  as of
   December 3, 1996.


                                   WITNESSETH:

         WHEREAS, the Compensation  Committee which administers the  Reading &
   Bates Corporation  1995 Long  Term Incentive  Plan ("Plan")  has determined
   that it is in the best  interests of the Company to amend the  Stock Option
   Agreement executed on March 22, 1996, effective  as of December 5, 1995, in
   the manner set out below, and Optionee has agreed to same;

         NOW  THEREFORE, for  and in  consideration of  these premises,  it is
   hereby agreed as follows:

         Paragraph 3 of the Agreement is amended,  effective as of the date of
         this Amendment, to read as follows:

               "3.   This Option  shall not  be exercisable,  except upon  the
               death  or disability  of the  Optionee, until after  six months
               immediately  following the  date this  Option  is granted,  and
               thereafter shall be exercisable for common stock as follows:

                     After one  year following  the effective  date of  grant,
                     this  Option shall be exercised  for any number of shares
                     up  to and  including  100% of  the  aggregate number  of
                     shares subject to this Option;

               provided the number  of shares as to which  this Option becomes
               exercisable shall,  in each case,  be reduced by the  number of
               shares theretofore purchased pursuant to the terms hereof."

         IN WITNESS WHEREOF, this Amendment is executed this      day of      
             , 1997, effective as of the 3rd day of December, 1996.

                                       READING & BATES CORPORATION


                                 By:   __________________________
                                       T. W. Nagle
                                       Executive Vice President,
                                       Finance and Administration


                                       OPTIONEE

                                       __________________________
                                       Paul B. Loyd, Jr. 

                                                                 Exhibit 10.24

                     AMENDMENT TO READING & BATES CORPORATION
                              STOCK OPTION AGREEMENT


         This Amendment to the Stock  Option Agreement between Reading & Bates
   Corporation ("Company")  and Paul B. Loyd,  Jr. ("Optionee") is made  as of
   December 3, 1996.


                                   WITNESSETH:

         WHEREAS, the Compensation  Committee which administers the  Reading &
   Bates Corporation  1992 Long  Term Incentive  Plan ("Plan")  has determined
   that it is in the best  interests of the Company to amend the  Stock Option
   Agreement executed on March 22, 1996, effective  as of December 5, 1995, in
   the manner set out below, and Optionee has agreed to same;

         NOW  THEREFORE, for  and in  consideration of  these premises,  it is
   hereby agreed as follows:

         Paragraph 3 of the Agreement is amended,  effective as of the date of
         this Amendment, to read as follows:

               "3.   This Option  shall not  be exercisable,  except upon  the
               death  or disability  of the  Optionee, until after  six months
               immediately  following the  date this  Option  is granted,  and
               thereafter shall be exercisable for common stock as follows:

                     After one  year following  the effective  date of  grant,
                     this  Option shall be exercised  for any number of shares
                     up  to and  including  100% of  the  aggregate number  of
                     shares subject to this Option;

               provided the number  of shares as to which  this Option becomes
               exercisable shall,  in each case,  be reduced by the  number of
               shares theretofore purchased pursuant to the terms hereof."

         IN WITNESS WHEREOF, this Amendment is executed this      day of      
             , 1997, effective as of the 3rd day of December, 1996.

                                       READING & BATES CORPORATION


                                 By:   __________________________
                                       T. W. Nagle
                                       Executive Vice President,
                                       Finance and Administration

                                       OPTIONEE


                                       __________________________
                                       Paul B. Loyd, Jr.   

                                                                Exhibit 10.41

                           READING & BATES CORPORATION
                         RESTRICTED STOCK AWARD AGREEMENT


         THIS AGREEMENT is made as of the date set forth on the signature page
   hereof, between  Reading & Bates  Corporation, a Delaware  corporation (the
   "Company"), and  Lucious  E. Voss,  Jr.  (the  "Participant").   Except  as
   defined herein, capitalized terms shall  have the same meaning ascribed  to
   them  under  the  1995   Long  Term  Incentive  Plan  of  Reading  &  Bates
   Corporation, as from time to time amended (the "Plan").  To the extent that
   any  provision of this  Agreement conflicts with  the express  terms of the
   Plan, it is hereby acknowledged and agreed that the terms of the Plan shall
   control and,  if  necessary, the  applicable provisions  of this  Agreement
   shall be hereby deemed amended so as to carry out the purpose and intent of
   the Plan.

         1.    Definitions.  As used herein,  the terms set forth below  shall
   have the following respective meanings:

         (a)   "Cause" means Cause as  defined in Company's Personnel Policies
   and Procedures, in effect from time to time.

         (b)   "Change  of Control" means  a Change  of Control as  defined in
   Paragraph 16 of this Agreement.

         (c)   "Disability"  means Disability  as  defined  in  the  Company's
   Personnel Policies and Procedures, in effect from time to time.

         2.    Award.  In order to encourage the Participant's contribution to
   the  successful  performance  of  the  Company,  in  consideration  of  the
   covenants and promises of the Participant herein  contained, and subject to
   shareholder  approval  of  the  Plan,  the  Company  hereby awards  to  the
   Participant as of  December 5, 1995 (the "Date of Grant"), a total of 24000
   shares of Common Stock, pursuant to the Plan, subject to the conditions and
   restrictions set forth below and in the Plan (the "Restricted Stock").

         3.    Restrictions  on  Transfer.   The  shares  of Restricted  Stock
   granted  hereunder  to   the  Participant  may   not  be  sold,   assigned,
   transferred, pledged or otherwise encumbered  from the Date of Grant  until
   said shares shall have become  vested in the Participant (and  restrictions
   terminated thereon) in accordance with  the provisions of this Paragraph  3
   or as otherwise provided in Paragraph 7 below.  (The period of time between
   the Date of  Grant and the vesting  of shares of Restricted  Stock shall be
   referred to herein as the "Restricted Period" as to those shares of stock.)
    The Participant  shall become  vested as  to 100% of  the total  number of
   shares of Restricted Stock awarded hereunder on December 5, 1998; provided,
   however, that the Participant shall not  be vested in shares of  Restricted
   Stock which would be vested as  of a given date if the Participant  has not
   been continuously employed by the Company and  its Affiliates from the date
   of   this  Agreement  through  such  date,   in  which  event  all  of  the
   Participant's rights to such  Restricted Stock shall terminate without  any
   payment of consideration by the Company, and such Restricted Stock shall be
   returned to  the Company  and cancelled.   The  Restricted Period shall  be
   subject to an earlier termination with respect  to all or a portion of  the
   Restricted Stock in accordance with the provisions of Paragraph 7 below.

         4.    No Code Section 83(b) Election.  The Participant shall not make
   an election,  under Code Section 83(b),  to include an amount  in income in
   respect of this Award of Restricted Stock.

         5.    Sale  of Restricted  Stock.   The  Participant  shall not  sell
   Restricted  Stock except  pursuant to  an effective  registration statement
   under  the  Securities  Act  of  1933  or  pursuant to  an  exemption  from
   registration under such act.

         6.    Escrow of Certificates.   The certificates  representing shares
   of Restricted Stock shall be  registered in the name of the  Participant on
   the Date  of Grant and deposited,  together with a stock  power endorsed by
   the Participant  in  blank, with  the Corporate  Secretary  of the  Company
   during the Restricted Period.  Each such certificate shall bear a legend as
   provided by the Company,  conspicuously referring to the  terms, conditions
   and restrictions described  in the Plan and in this  Agreement.  Subject to
   the  provisions of Paragraph  8 below,  upon termination of  the Restricted
   Period   with  respect  to  shares   of  Restricted  Stock,  a  certificate
   representing such shares shall be delivered to  the Participant as promptly
   as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

                     (i)   a Change of  Control that occurs after the  Date of
                     Grant; or

                     (ii)  the termination of the Participant's employment due
                     to   (A)  death   or  Disability,   or  (B)   involuntary
                     termination  by the  Company and  all Affiliates  for any
                     reason other than Cause; 

   the Restricted Period  set forth in Paragraph  3 above shall terminate  and
   the  Participant's right to  such Restricted Stock  shall become vested and
   nonforfeitable and all restrictions thereon will terminate.  
         (b)   If  the  Participant's  employment  with the  Company  and  all
   Affiliates  terminate  prior  to the  occurrence  of  a date  set  forth in
   Paragraph  (a)(i)  above  for  any  reason  other  than  death, disability,
   involuntary  termination or  resignation  described  in  Paragraph  (a)(ii)
   above, then all  Restricted Stock awarded  to the Participant that  has not
   previously vested in accordance with  Paragraph 3 above shall be  forfeited
   whereupon  the  Corporate  Secretary  shall  deliver  to  the  Company  the
   certificates  representing  such  shares  and the  stock  power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding of Taxes.   No certificates representing the shares
   of Restricted  Stock shall be delivered  to the Participant  by the Company
   upon  the expiration of  the Restricted  Period unless the  Participant (or
   Beneficiary, as  defined in Paragraph 10  below) remits to the  Company the
   amount  of  all  federal,  state  and other  governmental  withholding  tax
   requirements imposed upon the Company with respect to the issuance  of such
   shares  or unless provisions  to so pay  such withholding requirements have
   been made  to the  satisfaction of  the Committee.    Subject to  Committee
   approval, the Participant (or Beneficiary) may elect,  at least thirty (30)
   days  (or such other  period as the  Committee may prescribe)  prior to the
   vesting of such Restricted Stock, to satisfy such withholding  requirements
   by having  the Company withhold  shares otherwise deliverable  hereunder to
   the  Participant (or  Beneficiary) having a  Fair Market Value  on the date
   such shares became  vested equal  to the amount  necessary to satisfy  such
   withholding  tax requirements.   Any  election to  have shares  withheld to
   satisfy the  withholding tax requirements shall be made at such time and in
   such manner as the Committee shall prescribe.   Appropriate withholding may
   also be  deducted from the  payment of any  cash dividends with  respect to
   such shares of Restricted Stock during the Restricted Period, to the extent
   necessary to satisfy any withholding tax requirements applicable thereto.

         9.    Beneficiary Designations.  The  Participant shall file with the
   Human Resources  Department of  the Company  a designation  of one  or more
   beneficiaries  (each a  "Beneficiary")  to whom  shares  otherwise due  the
   Participant  shall  be  distributed  in  the  event  of  the  death of  the
   Participant while  in the  employ  of the  Company or  an  Affiliate.   The
   Participant shall have the right to change the Beneficiary or Beneficiaries
   from time  to time;  provided, however,  that any  change shall  not become
   effective until  received  in writing  by the  Corporate  Secretary of  the
   Company.  If any designated  Beneficiary survives the Participant but  dies
   before receiving all of his benefits hereunder,  any remaining benefits due
   him shall  be distributed to the deceased Beneficiary's estate. If there is
   no  effective  Beneficiary  designation  on   file  at  the  time  of   the
   Participant's death, or if the designated Beneficiary or Beneficiaries have
   all predeceased  such Participant,  the payment  of any remaining  benefits
   shall be made to the Participant's estate.

         10.   Limitation  of Rights.   Nothing in this  Agreement or the Plan
   shall be construed to:

         (a)   give  the  Participant  any right  to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give  the Participant or  any other person  any interest in any
   fund or in any  specified asset or assets of the Company  or any Affiliate;
   or

         (c)   confer  upon  the  Participant the  right  to  continue  in the
   employment or  service of the Company or any Affiliate, or affect the right
   of  the Company or any Affiliate to  terminate the employment or service of
   the Participant at any time or for any reason.

         11.   Prerequisites to  Benefits.   Neither the Participant,  nor any
   person claiming through the Participant,  shall have any right or  interest
   in the Restricted Stock  awarded hereunder, unless and until all the terms,
   conditions and provisions  of this Agreement and the Plan  which affect the
   Participant or such other person shall have been complied with as specified
   herein.

         12.   Rights as  a  Stockholder.    Subject to  the  limitations  and
   restrictions contained herein, the  Participant (or Beneficiary) shall have
   all rights as a stockholder with respect to the shares  of Restricted Stock
   once such shares have been registered in his name hereunder.

         13.   Successors and Assigns.  This Agreement shall bind and inure to
   the benefit of and be enforceable by the Participant, the Company and their
   respective  successors  and  assigns  (including  personal representatives,
   heirs and legatees).

         14.   Governing  Law.  This Agreement shall be governed by, construed
   and enforced in accordance with the laws of the State of Delaware.

         15.   Gender and Number.  Whenever  the context requires or  permits,
   the gender and number of words shall be interchangeable.

         16.   Change of  Control.   For  the  purpose  of this  Agreement,  a
   "Change of  Control" shall  mean any  "Person" ,  as such  term is used  in
   Section 13(d) and 14(d) of the  Securities Exchange Act of 1934, as amended
   (the "Exchange Act") (other than (i) the Executive, (ii) the Company or any
   of its subsidiaries or Affiliates (as that term is defined  in the Exchange
   Act), (iii) any  Person subject, as of the date of this Agreement or at any
   prior time, to the reporting or filing requirements of Section 13(d) of the
   Exchange  Act  with  respect  to  the securities  of  the  Company  or  any
   Affiliate, (iv) any trustee or other fiduciary holding or owning securities
   under  an  employee  benefit  plan  of  the  Company, (v)  any  underwriter
   temporarily holding  or  owning securities  of  the  Company, or  (vi)  any
   corporation owned directly or indirectly by the current stockholders of the
   Company  in substantially the  same proportion  as their then  ownership of
   stock  of the  Company)  becomes, after  the  date of  this  Agreement, the
   "beneficial owner"  (as  defined in  Rule 13d-3  under  the Exchange  Act),
   directly  or indirectly, of  securities of  the Company  representing forty
   percent (40%)  or more of the  combined voting power of  the Company's then
   outstanding securities.

         This Agreement is executed  and delivered, in duplicate,  pursuant to
   the Plan, the provisions of which are incorporated herein by reference.



   Dated:  ________________, 1996



   ATTEST:                             READING & BATES CORPORATION


                                         
                                       By:___________________________
________________________________            
Secretary
                                       Its:  Vice President, Human Resources



_______________________________                                                 
(Signature, Lucious E. Voss, Jr.)            


                                                                Exhibit 10.42

                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS AGREEMENT is made  as of  the date set  forth on the  signature
   page hereof, between  Reading & Bates Corporation, a  Delaware corporation
   (the "Company"), and Tim W. Nagle (the  "Participant").  Except as defined
   herein, capitalized terms  shall have the  same meaning  ascribed to  them
   under the  1995 Long Term  Incentive Plan of Reading  & Bates Corporation,
   as  from time  to time  amended  (the "Plan").   To  the  extent that  any
   provision of this  Agreement conflicts with the express terms of the Plan,
   it is  hereby acknowledged  and agreed that  the terms  of the Plan  shall
   control and,  if necessary, the  applicable provisions  of this  Agreement
   shall be hereby deemed amended  so as to carry out the  purpose and intent
   of the Plan.

         1.    Definitions.  As  used herein, the terms set forth below shall
   have the following respective meanings:

         (a)   "Cause"  means   Cause  as  defined  in   Company's  Personnel
   Policies and Procedures, in effect from time to time.

         (b)   "Change of  Control" means a  Change of Control  as defined in
   Paragraph 16 of this Agreement.

         (c)   "Disability"  means  Disability  as defined  in  the Company's
   Personnel Policies and Procedures, in effect from time to time.

         2.    Award.  In  order to encourage the  Participant's contribution
   to the  successful performance  of the  Company, in  consideration of  the
   covenants  and promises of the  Participant herein  contained, and subject
   to shareholder approval  of the  Plan, the  Company hereby  awards to  the
   Participant as of   December  5, 1995 (the  "Date of Grant"),  a total  of
   20000  shares  of  Common Stock,  pursuant  to the  Plan,  subject  to the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         3.    Restrictions  on Transfer.   The  shares  of Restricted  Stock
   granted  hereunder   to  the  Participant  may   not  be  sold,  assigned,
   transferred, pledged or  otherwise encumbered from the Date of Grant until
   said shares shall  have become vested in the Participant (and restrictions
   terminated thereon) in  accordance with the provisions of this Paragraph 3
   or  as otherwise  provided  in Paragraph  7 below.    (The period  of time
   between the Date  of Grant and the  vesting of shares of  Restricted Stock
   shall be referred to herein as the "Restricted  Period" as to those shares
   of stock.)    The Participant shall become vested as  to 100% of the total
   number of  shares of  Restricted Stock  awarded hereunder  on December  5,
   1998;  provided, however,  that  the Participant  shall  not be  vested in
   shares of  Restricted Stock which would  be vested as  of a given  date if
   the Participant has not  been continuously employed by the Company and its
   Affiliates from  the date of  this Agreement through  such date, in  which
   event  all of  the  Participant's rights  to  such Restricted  Stock shall
   terminate without  any payment of  consideration by the  Company, and such
   Restricted Stock  shall be returned  to the  Company and  cancelled.   The
   Restricted Period shall  be subject to an earlier termination with respect
   to  all  or a  portion  of the  Restricted  Stock in  accordance  with the
   provisions of Paragraph 7 below.

         4.    No Code  Section 83(b)  Election.  The  Participant shall  not
   make an  election,  under Code  Section  83(b), to  include  an amount  in
   income in respect of this Award of Restricted Stock.

         5.    Sale of  Restricted Stock.   The  Participant  shall not  sell
   Restricted Stock  except pursuant to  an effective registration  statement
   under  the  Securities  Act of  1933  or  pursuant  to  an exemption  from
   registration under such act.

         6.    Escrow  of Certificates.  The certificates representing shares
   of Restricted Stock shall be registered in the  name of the Participant on
   the Date of Grant and deposited,  together with a stock power endorsed  by
   the Participant  in blank,  with the  Corporate Secretary  of the  Company
   during the Restricted Period.   Each such certificate shall bear  a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions and restrictions described in  the Plan and in  this Agreement.
   Subject to the provisions  of Paragraph 8  below, upon termination of  the
   Restricted  Period  with  respect   to  shares  of  Restricted   Stock,  a
   certificate  representing   such  shares   shall  be   delivered  to   the
   Participant as promptly as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

                     (i)   a Change of Control that occurs after the Date  of
                     Grant; or

                     (ii)  the  termination  of the  Participant's employment
                     due  to (A)  death  or  Disability, or  (B)  involuntary
                     termination by  the Company and  all Affiliates for  any
                     reason other than Cause; 

   the Restricted Period set forth  in Paragraph 3 above shall  terminate and
   the Participant's right to such  Restricted Stock shall become  vested and
   nonforfeitable and all restrictions thereon will terminate.  
         (b)   If  the Participant's  employment  with  the Company  and  all
   Affiliates  terminate prior  to  the occurrence  of a  date  set forth  in
   Paragraph  (a)(i)  above  for  any reason  other  than  death, disability,
   involuntary  termination or  resignation  described  in Paragraph  (a)(ii)
   above, then  all Restricted Stock awarded to the  Participant that has not
   previously vested in  accordance with Paragraph 3 above shall be forfeited
   whereupon  the  Corporate  Secretary  shall deliver  to  the  Company  the
   certificates  representing such  shares  and  the stock  power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted  Stock shall be delivered  to the Participant by  the
   Company  upon  the   expiration  of  the  Restricted   Period  unless  the
   Participant (or Beneficiary, as defined  in Paragraph 10 below)  remits to
   the Company  the  amount of  all  federal,  state and  other  governmental
   withholding tax requirements  imposed upon the Company with respect to the
   issuance  of such shares  or unless provisions to  so pay such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject  to  Committee  approval, the  Participant  (or  Beneficiary)  may
   elect, at least  thirty (30) days (or  such other period as  the Committee
   may prescribe) prior to  the vesting of such Restricted Stock,  to satisfy
   such  withholding  requirements  by having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on the date such  shares became vested equal to
   the amount  necessary to satisfy  such withholding tax  requirements.  Any
   election  to   have  shares  withheld  to   satisfy  the  withholding  tax
   requirements  shall be  made  at  such time  and  in  such manner  as  the
   Committee  shall prescribe.  Appropriate withholding  may also be deducted
   from the  payment of  any cash dividends  with respect  to such shares  of
   Restricted Stock during  the Restricted Period, to the extent necessary to
   satisfy any withholding tax requirements applicable thereto.

         9.    Beneficiary Designations.    The Participant  shall file  with
   the  Human Resources  Department of  the Company  a designation  of one or
   more beneficiaries (each  a "Beneficiary")  to whom  shares otherwise  due
   the Participant shall  be distributed  in the event  of the  death of  the
   Participant while  in the  employ of  the Company  or an  Affiliate.   The
   Participant  shall   have  the   right  to   change  the  Beneficiary   or
   Beneficiaries from time  to time; provided, however, that any change shall
   not become effective  until received in writing by the Corporate Secretary
   of the  Company.  If  any designated Beneficiary  survives the Participant
   but dies before  receiving all of  his benefits  hereunder, any  remaining
   benefits  due  him  shall be  distributed  to  the deceased  Beneficiary's
   estate. If there  is no effective Beneficiary  designation on file at  the
   time  of the  Participant's  death, or  if  the designated  Beneficiary or
   Beneficiaries have all  predeceased such Participant, the  payment of  any
   remaining benefits shall be made to the Participant's estate.

         10.   Limitation of Rights.  Nothing  in this Agreement or  the Plan
   shall be construed to:

         (a)   give  the  Participant any  right  to be  awarded  any further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give the Participant or any  other person any interest  in any
   fund or in any specified asset or assets of the Company or any  Affiliate;
   or

         (c)   confer  upon the  Participant  the right  to  continue in  the
   employment  or service  of the  Company or  any Affiliate,  or affect  the
   right of  the  Company or  any Affiliate  to terminate  the employment  or
   service of the Participant at any time or for any reason.

         11.   Prerequisites to Benefits.   Neither the Participant,  nor any
   person claiming through  the Participant, shall have any right or interest
   in the  Restricted  Stock awarded  hereunder,  unless  and until  all  the
   terms, conditions  and provisions  of this  Agreement and  the Plan  which
   affect the Participant  or such other person shall have been complied with
   as specified herein.

         12.   Rights  as a  Stockholder.   Subject  to  the limitations  and
   restrictions  contained  herein, the  Participant  (or  Beneficiary) shall
   have all rights as a stockholder with respect to the shares of  Restricted
   Stock once such shares have been registered in his name hereunder.

         13.   Successors and Assigns.   This Agreement shall  bind and inure
   to the benefit of  and be enforceable by the Participant,  the Company and
   their   respective    successors   and    assigns   (including    personal
   representatives, heirs and legatees).

         14.   Governing  Law.     This  Agreement  shall  be   governed  by,
   construed  and  enforced  in accordance  with  the  laws of  the  State of
   Delaware.

         15.   Gender  and Number.  Whenever the context requires or permits,
   the gender and number of words shall be interchangeable.

         16.   Change  of Control.    For the  purpose  of this  Agreement, a
   "Change of Control"  shall mean  any "Person" ,  as such  term is used  in
   Section  13(d) and  14(d)  of the  Securities  Exchange  Act of  1934,  as
   amended  (the "Exchange  Act")  (other than  (i)  the Executive,  (ii) the
   Company or any of its subsidiaries or Affiliates  (as that term is defined
   in the Exchange  Act), (iii) any  Person subject, as  of the date  of this
   Agreement or at  any prior time,  to the reporting or  filing requirements
   of Section  13(d) of the  Exchange Act with  respect to the securities  of
   the Company or any  Affiliate, (iv) any trustee or other fiduciary holding
   or owning  securities under an employee  benefit plan of the  Company, (v)
   any underwriter  temporarily holding or owning  securities of the Company,
   or (vi)  any  corporation owned  directly  or  indirectly by  the  current
   stockholders of the  Company in substantially the same proportion as their
   then ownership of  stock of the Company)  becomes, after the date  of this
   Agreement, the  "beneficial owner"  (as defined  in Rule  13d-3 under  the
   Exchange  Act), directly  or  indirectly,  of  securities of  the  Company
   representing  forty percent (40%) or more  of the combined voting power of
   the Company's then outstanding securities.

         This Agreement is executed and delivered, in duplicate, pursuant  to
   the Plan, the provisions of which are incorporated herein by reference.



   Dated:  ________________, 1996



   ATTEST:                             READING & BATES CORPORATION


                                         
                                       By:___________________________ 

________________________________              
Secretary
                                       Its:  Vice President, Human Resources
                                              

_________________________
(Signature, Tim W. Nagle)            


                                                                Exhibit 10.43

                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS AGREEMENT is made  as of  the date set  forth on the  signature
   page hereof, between Reading &  Bates Corporation, a Delaware  corporation
   (the "Company"),  and Charles  R. Ofner  (the "Participant").   Except  as
   defined herein, capitalized terms shall have the same meaning  ascribed to
   them  under  the  1995  Long  Term  Incentive  Plan  of  Reading  &  Bates
   Corporation,  as from time  to time amended (the  "Plan").   To the extent
   that  any provision of this Agreement  conflicts with the express terms of
   the Plan, it is hereby acknowledged and agreed that the  terms of the Plan
   shall  control  and,  if  necessary,  the applicable  provisions  of  this
   Agreement shall be  hereby deemed amended so  as to carry out  the purpose
   and intent of the Plan.

         1.    Definitions.  As used herein, the terms set forth  below shall
   have the following respective meanings:

         (a)   "Cause"   means  Cause  as   defined  in  Company's  Personnel
   Policies and Procedures, in effect from time to time.

         (b)   "Change  of Control" means  a Change of Control  as defined in
   Paragraph 16 of this Agreement.

         (c)   "Disability"  means  Disability as  defined  in  the Company's
   Personnel Policies and Procedures, in effect from time to time.

         2.    Award.  In  order to encourage the  Participant's contribution
   to the  successful performance  of the  Company, in  consideration of  the
   covenants and  promises of  the Participant herein  contained, and subject
   to shareholder  approval of  the Plan,  the Company hereby  awards to  the
   Participant as  of   December 5, 1995  (the "Date  of Grant"), a  total of
   17000  shares of  Common  Stock,  pursuant to  the  Plan,  subject to  the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         3.    Restrictions  on Transfer.   The  shares  of Restricted  Stock
   granted  hereunder  to   the  Participant  may  not  be   sold,  assigned,
   transferred, pledged or otherwise encumbered from the Date of  Grant until
   said shares shall have become vested in the Participant  (and restrictions
   terminated thereon) in accordance with the provisions of this  Paragraph 3
   or  as otherwise  provided  in Paragraph  7 below.    (The period  of time
   between the Date  of Grant and the  vesting of shares of  Restricted Stock
   shall be referred to herein as the "Restricted  Period" as to those shares
   of stock.)   The Participant  shall become vested as to 100%  of the total
   number of  shares of  Restricted Stock  awarded hereunder  on December  5,
   1998; provided,  however,  that the  Participant shall  not be  vested  in
   shares of Restricted  Stock which would  be vested as of  a given date  if
   the Participant has not been continuously employed by the Company  and its
   Affiliates from  the date of  this Agreement  through such date,  in which
   event all  of  the Participant's  rights to  such Restricted  Stock  shall
   terminate  without any payment  of consideration by the  Company, and such
   Restricted Stock  shall be  returned to  the Company and  cancelled.   The
   Restricted Period shall be subject to an earlier termination  with respect
   to  all  or a  portion  of the  Restricted  Stock in  accordance  with the
   provisions of Paragraph 7 below.

         4.    No  Code Section 83(b)  Election.   The Participant  shall not
   make  an  election, under  Code Section  83(b),  to include  an  amount in
   income in respect of this Award of Restricted Stock. 

         5.    Sale  of  Restricted Stock.   The  Participant shall  not sell
   Restricted Stock  except pursuant to  an effective registration  statement
   under the  Securities  Act  of  1933  or pursuant  to  an  exemption  from
   registration under such act.

         6.    Escrow of Certificates.  The certificates  representing shares
   of Restricted Stock shall be registered in the name of the Participant  on
   the Date of Grant  and deposited, together with a stock  power endorsed by
   the Participant  in blank,  with the  Corporate Secretary  of the  Company
   during the Restricted Period.  Each  such certificate shall bear a  legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions  and restrictions described in  the Plan and in this Agreement.
   Subject  to the provisions  of Paragraph 8 below,  upon termination of the
   Restricted  Period  with   respect  to  shares  of  Restricted   Stock,  a
   certificate  representing   such  shares   shall  be   delivered  to   the
   Participant as promptly as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

                     (i)   a Change of Control  that occurs after the Date of
                     Grant; or

                     (ii)  the termination  of  the Participant's  employment
                     due  to (A)  death  or  Disability, or  (B)  involuntary
                     termination by  the Company and  all Affiliates for  any
                     reason other than Cause; 

   the Restricted  Period set forth in Paragraph  3 above shall terminate and
   the  Participant's right to such  Restricted Stock shall become vested and
   nonforfeitable and all restrictions thereon will terminate.  
         (b)   If  the Participant's  employment  with  the Company  and  all
   Affiliates  terminate prior  to the  occurrence  of a  date  set forth  in
   Paragraph  (a)(i)  above  for any  reason  other  than  death, disability,
   involuntary  termination  or  resignation described  in  Paragraph (a)(ii)
   above, then all Restricted Stock  awarded to the Participant that  has not
   previously vested in accordance with Paragraph 3 above shall  be forfeited
   whereupon  the  Corporate  Secretary  shall  deliver  to  the  Company the
   certificates  representing such  shares  and  the stock  power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted Stock  shall be delivered to  the Participant by  the
   Company  upon  the   expiration  of  the  Restricted  Period   unless  the
   Participant  (or Beneficiary, as defined  in Paragraph 10 below) remits to
   the  Company  the  amount of  all  federal, state  and  other governmental
   withholding tax requirements imposed upon the Company with respect  to the
   issuance of such  shares or unless provisions  to so pay  such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject  to  Committee  approval, the  Participant  (or  Beneficiary)  may
   elect, at least  thirty (30) days (or  such other period as  the Committee
   may prescribe) prior to  the vesting of such Restricted  Stock, to satisfy
   such  withholding  requirements  by having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on the date such shares became vested  equal to
   the  amount necessary to  satisfy such withholding tax  requirements.  Any
   election   to  have  shares  withheld  to   satisfy  the  withholding  tax
   requirements  shall be  made  at  such time  and  in  such manner  as  the
   Committee  shall prescribe.  Appropriate  withholding may also be deducted
   from  the payment of  any cash  dividends with  respect to such  shares of
   Restricted Stock during the Restricted Period, to the extent  necessary to
   satisfy any withholding tax requirements applicable thereto. 

         9.    Beneficiary Designations.    The Participant  shall file  with
   the Human  Resources Department  of the  Company a  designation of one  or
   more beneficiaries  (each a "Beneficiary")  to whom  shares otherwise  due
   the  Participant shall be  distributed in  the event  of the death  of the
   Participant while  in the  employ of  the Company  or an  Affiliate.   The
   Participant  shall   have  the   right  to   change  the   Beneficiary  or
   Beneficiaries from time to time; provided, however, that any  change shall
   not become effective until received in writing by the  Corporate Secretary
   of  the Company.   If any designated Beneficiary  survives the Participant
   but dies  before receiving  all of  his benefits hereunder,  any remaining
   benefits due  him  shall  be  distributed to  the  deceased  Beneficiary's
   estate. If  there is no effective  Beneficiary designation on file  at the
   time of  the  Participant's death,  or if  the designated  Beneficiary  or
   Beneficiaries have  all predeceased such  Participant, the payment of  any
   remaining benefits shall be made to the Participant's estate.

         10.   Limitation  of Rights.  Nothing  in this Agreement or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give  the Participant or any  other person any interest in any
   fund or in any specified asset or assets of  the Company or any Affiliate;
   or

         (c)   confer  upon the  Participant  the right  to  continue in  the
   employment  or service  of the  Company or  any Affiliate,  or affect  the
   right  of  the Company  or any  Affiliate to  terminate the  employment or
   service of the Participant at any time or for any reason.

         11.   Prerequisites to Benefits.   Neither the Participant,  nor any
   person claiming through the Participant, shall have any right  or interest
   in  the  Restricted  Stock awarded  hereunder,  unless and  until  all the
   terms, conditions  and provisions  of this  Agreement and  the Plan  which
   affect the Participant or such other person shall have been complied  with
   as specified herein.

         12.   Rights as  a  Stockholder.   Subject  to the  limitations  and
   restrictions  contained herein,  the  Participant  (or Beneficiary)  shall
   have all rights as a stockholder with respect  to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         13.   Successors and Assigns.  This  Agreement shall bind and  inure
   to the benefit of and be  enforceable by the Participant, the Company  and
   their   respective    successors   and    assigns   (including    personal
   representatives, heirs and legatees).

         14.   Governing  Law.     This  Agreement  shall  be   governed  by,
   construed  and enforced  in  accordance  with the  laws  of the  State  of
   Delaware.

         15.   Gender and Number.   Whenever the context requires or permits,
   the gender and number of words shall be interchangeable.

         16.   Change of  Control.   For  the purpose  of this  Agreement,  a
   "Change of  Control" shall mean  any "Person" ,  as such  term is used  in
   Section  13(d) and  14(d)  of  the Securities  Exchange  Act  of 1934,  as
   amended (the  "Exchange  Act") (other  than (i)  the Executive,  (ii)  the
   Company or any of  its subsidiaries or Affiliates (as that term is defined
   in  the Exchange Act),  (iii) any Person subject,  as of the  date of this
   Agreement or at  any prior time, to  the reporting or filing  requirements
   of  Section 13(d) of  the Exchange Act with  respect to  the securities of
   the Company or any Affiliate, (iv) any  trustee or other fiduciary holding
   or  owning securities under  an employee benefit plan  of the Company, (v)
   any underwriter temporarily holding  or owning securities of  the Company,
   or  (vi)  any  corporation owned  directly  or indirectly  by  the current
   stockholders of the Company in substantially the same proportion  as their
   then ownership of  stock of the Company)  becomes, after the date  of this
   Agreement, the  "beneficial owner"  (as defined  in Rule  13d-3 under  the
   Exchange  Act),  directly  or indirectly,  of  securities  of  the Company
   representing forty percent (40%)  or more of the combined  voting power of
   the Company's then outstanding securities.

         This Agreement  is executed and delivered, in duplicate, pursuant to
   the Plan, the provisions of which are incorporated herein by reference.



   Dated:  ________________, 1996



   ATTEST:                             READING & BATES CORPORATION

                                         
                                       By:___________________________
____________________________
Secretary
                                       Its:  Vice President, Human Resources



_____________________________
(Signature, Charles R. Ofner)           


                                                                Exhibit 10.44


                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS AGREEMENT  is made as  of the date  set forth on the  signature
   page hereof, between  Reading & Bates Corporation, a  Delaware corporation
   (the "Company"),  and  Don L.  McIntire (the  "Participant").   Except  as
   defined herein, capitalized terms shall have the same meaning  ascribed to
   them  under  the  1995  Long  Term  Incentive  Plan  of  Reading  &  Bates
   Corporation, as from time  to time  amended (the "Plan").   To the  extent
   that any provision  of this Agreement conflicts with  the express terms of
   the Plan,  it is hereby acknowledged and agreed that the terms of the Plan
   shall  control  and,  if  necessary,  the  applicable  provisions of  this
   Agreement shall be  hereby deemed amended so  as to carry out  the purpose
   and intent of the Plan.

         1.    Definitions.  As used herein, the terms set forth  below shall
   have the following respective meanings:

         (a)   "Cause"  means   Cause  as  defined  in   Company's  Personnel
   Policies and Procedures, in effect from time to time.

         (b)   "Change  of Control" means  a Change of Control  as defined in
   Paragraph 16 of this Agreement.

         (c)   "Disability"  means  Disability  as defined  in  the Company's
   Personnel Policies and Procedures, in effect from time to time.

         2.    Award.  In  order to encourage the  Participant's contribution
   to the  successful performance  of the  Company, in  consideration of  the
   covenants and promises of  the Participant  herein contained, and  subject
   to shareholder  approval of  the Plan,  the Company  hereby awards to  the
   Participant  as of   December 5, 1995  (the "Date  of Grant"), a  total of
   12000 shares  of  Common Stock,  pursuant  to  the Plan,  subject  to  the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         3.    Restrictions  on Transfer.   The  shares  of Restricted  Stock
   granted   hereunder  to  the  Participant   may  not  be  sold,  assigned,
   transferred, pledged or otherwise encumbered from the Date of  Grant until
   said shares shall have become vested in the Participant  (and restrictions
   terminated thereon) in accordance with the provisions of this  Paragraph 3
   or as  otherwise provided  in  Paragraph 7  below.   (The period  of  time
   between the Date  of Grant and the  vesting of shares of  Restricted Stock
   shall be referred to  herein as the "Restricted Period" as to those shares
   of stock.)    The Participant shall become vested as  to 100% of the total
   number of  shares of  Restricted Stock  awarded hereunder  on December  5,
   1998; provided,  however,  that the  Participant shall  not be  vested  in
   shares of  Restricted Stock which  would be vested  as of a  given date if
   the  Participant has not been continuously employed by the Company and its
   Affiliates  from the date  of this Agreement  through such  date, in which
   event all  of  the Participant's  rights to  such Restricted  Stock  shall
   terminate  without any payment  of consideration by the  Company, and such
   Restricted Stock  shall be  returned to  the Company  and cancelled.   The
   Restricted Period shall be subject to an earlier termination  with respect
   to  all or  a  portion of  the  Restricted Stock  in  accordance with  the
   provisions of Paragraph 7 below.

         4.    No  Code Section  83(b) Election.   The Participant  shall not
   make  an election,  under  Code Section  83(b), to  include  an amount  in 
   income in respect of this Award of Restricted Stock.

         5.    Sale  of Restricted  Stock.   The  Participant shall  not sell
   Restricted Stock  except pursuant to  an effective registration  statement
   under  the  Securities  Act  of 1933  or  pursuant  to  an  exemption from
   registration under such act.

         6.    Escrow of Certificates.  The certificates representing  shares
   of Restricted Stock shall  be registered in the name of the Participant on
   the Date  of Grant and deposited, together with  a stock power endorsed by
   the Participant  in blank,  with the  Corporate Secretary  of the  Company
   during the Restricted Period.   Each such certificate shall bear  a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions  and restrictions described in  the Plan and in this Agreement.
   Subject  to the provisions of  Paragraph 8 below,  upon termination of the
   Restricted  Period  with   respect  to  shares  of   Restricted  Stock,  a
   certificate  representing   such  shares   shall  be   delivered  to   the
   Participant as promptly as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

                     (i)   a Change of Control that occurs after the  Date of
                     Grant; or

                     (ii)  the termination  of  the Participant's  employment
                     due  to (A)  death  or  Disability, or  (B)  involuntary
                     termination by  the Company and  all Affiliates for  any
                     reason other than Cause; 

   the Restricted Period set forth in  Paragraph 3 above shall terminate  and
   the  Participant's right to such  Restricted Stock shall become vested and
   nonforfeitable and all restrictions thereon will terminate.  
         (b)   If  the Participant's  employment  with  the Company  and  all
   Affiliates  terminate  prior to  the  occurrence of  a date  set  forth in
   Paragraph  (a)(i)  above  for any  reason  other  than death,  disability,
   involuntary termination  or  resignation  described in  Paragraph  (a)(ii)
   above, then all Restricted  Stock awarded to the Participant that  has not
   previously vested in accordance with Paragraph 3 above shall  be forfeited
   whereupon  the  Corporate  Secretary shall  deliver  to  the  Company  the
   certificates  representing such  shares  and  the stock  power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding  of  Taxes.    No  certificates  representing  the
   shares  of Restricted Stock  shall be delivered to  the Participant by the
   Company  upon   the  expiration  of  the   Restricted  Period  unless  the
   Participant  (or Beneficiary, as defined  in Paragraph 10 below) remits to
   the  Company  the  amount of  all  federal, state  and  other governmental
   withholding tax requirements imposed upon the Company with respect  to the
   issuance of such  shares or unless provisions  to so pay such  withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject  to  Committee  approval, the  Participant  (or  Beneficiary)  may
   elect, at least  thirty (30) days (or  such other period as  the Committee
   may prescribe)  prior to the vesting of such  Restricted Stock, to satisfy
   such  withholding  requirements  by having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on the date such  shares became vested equal to
   the  amount necessary to  satisfy such withholding tax  requirements.  Any
   election   to  have  shares  withheld   to  satisfy  the  withholding  tax
   requirements  shall be  made  at  such time  and  in  such manner  as  the
   Committee shall prescribe.  Appropriate  withholding may also be  deducted
   from the payment  of any  cash dividends with  respect to  such shares  of
   Restricted Stock during the Restricted Period, to the extent  necessary to
   satisfy any withholding tax requirements applicable thereto.

         9.    Beneficiary  Designations.   The Participant  shall file  with
   the  Human Resources  Department of the  Company a  designation of  one or
   more beneficiaries  (each a  "Beneficiary") to  whom shares  otherwise due
   the  Participant shall be  distributed in  the event  of the death  of the
   Participant while  in the  employ of  the Company  or an  Affiliate.   The
   Participant  shall   have  the   right  to   change  the  Beneficiary   or
   Beneficiaries from time to time; provided, however, that any  change shall
   not become effective until received in writing by the  Corporate Secretary
   of  the Company.   If any designated Beneficiary  survives the Participant
   but dies  before receiving  all of  his benefits hereunder,  any remaining
   benefits  due  him shall  be  distributed  to the  deceased  Beneficiary's
   estate.  If there is no  effective Beneficiary designation  on file at the
   time of  the  Participant's death,  or if  the designated  Beneficiary  or
   Beneficiaries have  all predeceased such Participant,  the payment  of any
   remaining benefits shall be made to the Participant's estate.

         10.   Limitation  of Rights.  Nothing  in this Agreement or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give  the Participant or any  other person any interest in any
   fund or in any specified asset or assets of the  Company or any Affiliate;
   or

         (c)   confer upon  the  Participant the  right  to continue  in  the
   employment  or service  of the  Company  or any  Affiliate, or  affect the
   right  of the  Company or  any Affiliate  to  terminate the  employment or
   service of the Participant at any time or for any reason.

         11.   Prerequisites to Benefits.   Neither the Participant,  nor any
   person claiming through the Participant, shall have any right  or interest
   in  the  Restricted  Stock awarded  hereunder,  unless and  until  all the
   terms, conditions  and provisions  of this  Agreement and  the Plan  which
   affect the Participant or such other person  shall have been complied with
   as specified herein.

         12.   Rights as  a  Stockholder.   Subject  to the  limitations  and
   restrictions  contained  herein,  the Participant  (or  Beneficiary) shall
   have all rights as a stockholder with respect  to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         13.   Successors and  Assigns.  This Agreement  shall bind and inure
   to the benefit of and be  enforceable by the Participant, the Company  and
   their   respective    successors   and    assigns   (including    personal
   representatives, heirs and legatees).

         14.   Governing  Law.     This  Agreement  shall  be   governed  by,
   construed  and  enforced in  accordance  with  the laws  of  the  State of
   Delaware.

         15.   Gender and Number.  Whenever the context requires or  permits,
   the gender and number of words shall be interchangeable.

         16.   Change of  Control.   For  the purpose  of this  Agreement,  a
   "Change of  Control" shall  mean any "Person"  , as such  term is  used in
   Section  13(d) and  14(d)  of  the Securities  Exchange  Act of  1934,  as
   amended (the  "Exchange  Act") (other  than (i)  the Executive,  (ii)  the
   Company or any of  its subsidiaries or Affiliates (as that term is defined 
   in the Exchange  Act), (iii) any Person  subject, as of  the date of  this
   Agreement  or at any  prior time, to the  reporting or filing requirements
   of  Section 13(d) of  the Exchange Act with  respect to  the securities of
   the Company  or any Affiliate, (iv) any trustee or other fiduciary holding
   or owning securities  under an employee benefit  plan of the  Company, (v)
   any  underwriter temporarily holding or  owning securities of the Company,
   or  (vi)  any  corporation owned  directly  or indirectly  by  the current
   stockholders of the Company in substantially the same proportion  as their
   then ownership of  stock of the Company)  becomes, after the date  of this
   Agreement, the  "beneficial owner"  (as defined  in Rule  13d-3 under  the
   Exchange Act),  directly  or  indirectly,  of securities  of  the  Company
   representing forty percent (40%)  or more of the combined voting  power of
   the Company's then outstanding securities.

         This Agreement is executed and delivered, in duplicate,  pursuant to
   the Plan, the provisions of which are incorporated herein by reference.



   Dated:  ________________, 1996



   ATTEST:                             READING & BATES CORPORATION


                                       By:___________________________ 
____________________________
Secretary
                                       Its:  Vice President, Human Resources

____________________________
(Signature, Don L. McIntire)           


                                                                Exhibit 10.45

                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS AGREEMENT is made  as of  the date set  forth on the  signature
   page hereof, between Reading &  Bates Corporation, a Delaware  corporation
   (the "Company"),  and  Wayne K.  Hillin (the  "Participant").   Except  as
   defined herein, capitalized terms shall have the same meaning  ascribed to
   them  under  the  1995  Long  Term  Incentive  Plan  of  Reading  &  Bates
   Corporation,  as from time  to time amended (the  "Plan").   To the extent
   that  any provision of this Agreement  conflicts with the express terms of
   the Plan, it is hereby acknowledged and agreed that the  terms of the Plan
   shall  control  and,  if  necessary,  the applicable  provisions  of  this
   Agreement shall be  hereby deemed amended so  as to carry out  the purpose
   and intent of the Plan.

         1.    Definitions.  As used herein, the terms set forth  below shall
   have the following respective meanings:

         (a)   "Cause"   means  Cause  as   defined  in  Company's  Personnel
   Policies and Procedures, in effect from time to time.

         (b)   "Change  of Control" means  a Change of Control  as defined in
   Paragraph 16 of this Agreement.

         (c)   "Disability"  means  Disability as  defined  in  the Company's
   Personnel Policies and Procedures, in effect from time to time.

         2.    Award.  In  order to encourage the  Participant's contribution
   to the  successful performance  of the  Company, in  consideration of  the
   covenants and  promises of  the Participant herein  contained, and subject
   to shareholder  approval of  the Plan,  the Company hereby  awards to  the
   Participant as  of   December 5, 1995  (the "Date  of Grant"), a  total of
   19000  shares of  Common  Stock,  pursuant to  the  Plan,  subject to  the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         3.    Restrictions  on Transfer.   The  shares  of Restricted  Stock
   granted  hereunder  to   the  Participant  may  not  be   sold,  assigned,
   transferred, pledged or otherwise encumbered from the Date of  Grant until
   said shares shall have become vested in the Participant  (and restrictions
   terminated thereon) in accordance with the provisions of this  Paragraph 3
   or  as otherwise  provided  in Paragraph  7 below.    (The period  of time
   between the Date  of Grant and the  vesting of shares of  Restricted Stock
   shall be referred to herein as the "Restricted  Period" as to those shares
   of stock.)   The Participant  shall become vested as to 100%  of the total
   number of  shares of  Restricted Stock  awarded hereunder  on December  5,
   1998; provided,  however,  that the  Participant shall  not be  vested  in
   shares of Restricted  Stock which would  be vested as of  a given date  if
   the Participant has not been continuously employed by the Company  and its
   Affiliates from  the date of  this Agreement  through such date,  in which
   event all  of  the Participant's  rights to  such Restricted  Stock  shall
   terminate  without any payment  of consideration by the  Company, and such
   Restricted Stock  shall be  returned to  the Company and  cancelled.   The
   Restricted Period shall be subject to an earlier termination  with respect
   to  all  or a  portion  of the  Restricted  Stock in  accordance  with the
   provisions of Paragraph 7 below.

         4.    No  Code Section 83(b)  Election.   The Participant  shall not
   make  an  election, under  Code Section  83(b),  to include  an  amount in
   income in respect of this Award of Restricted Stock. 

         5.    Sale  of  Restricted Stock.   The  Participant shall  not sell
   Restricted Stock  except pursuant to  an effective registration  statement
   under the  Securities  Act  of  1933  or pursuant  to  an  exemption  from
   registration under such act.

         6.    Escrow of Certificates.  The certificates  representing shares
   of Restricted Stock shall be registered in the name of the Participant  on
   the Date of Grant  and deposited, together with a stock  power endorsed by
   the Participant  in blank,  with the  Corporate Secretary  of the  Company
   during the Restricted Period.  Each  such certificate shall bear a  legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions  and restrictions described in  the Plan and in this Agreement.
   Subject  to the provisions  of Paragraph 8 below,  upon termination of the
   Restricted  Period  with   respect  to  shares  of  Restricted   Stock,  a
   certificate  representing   such  shares   shall  be   delivered  to   the
   Participant as promptly as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

                     (i)   a Change of Control  that occurs after the Date of
                     Grant; or

                     (ii)  the termination  of  the Participant's  employment
                     due  to (A)  death  or  Disability, or  (B)  involuntary
                     termination by  the Company and  all Affiliates for  any
                     reason other than Cause; 

   the Restricted  Period set forth in Paragraph  3 above shall terminate and
   the  Participant's right to such  Restricted Stock shall become vested and
   nonforfeitable and all restrictions thereon will terminate.  
         (b)   If  the Participant's  employment  with  the Company  and  all
   Affiliates  terminate prior  to the  occurrence  of a  date  set forth  in
   Paragraph  (a)(i)  above  for any  reason  other  than  death, disability,
   involuntary  termination  or  resignation described  in  Paragraph (a)(ii)
   above, then all Restricted Stock  awarded to the Participant that  has not
   previously vested in accordance with Paragraph 3 above shall  be forfeited
   whereupon  the  Corporate  Secretary  shall  deliver  to  the  Company the
   certificates  representing such  shares  and  the stock  power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted Stock  shall be delivered to  the Participant by  the
   Company  upon  the   expiration  of  the  Restricted  Period   unless  the
   Participant  (or Beneficiary, as defined  in Paragraph 10 below) remits to
   the  Company  the  amount of  all  federal, state  and  other governmental
   withholding tax requirements imposed upon the Company with respect  to the
   issuance of such  shares or unless provisions  to so pay  such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject  to  Committee  approval, the  Participant  (or  Beneficiary)  may
   elect, at least  thirty (30) days (or  such other period as  the Committee
   may prescribe) prior to  the vesting of such Restricted  Stock, to satisfy
   such  withholding  requirements  by having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on the date such shares became vested  equal to
   the  amount necessary to  satisfy such withholding tax  requirements.  Any
   election   to  have  shares  withheld  to   satisfy  the  withholding  tax
   requirements  shall be  made  at  such time  and  in  such manner  as  the
   Committee  shall prescribe.  Appropriate  withholding may also be deducted
   from  the payment of  any cash  dividends with  respect to such  shares of
   Restricted Stock during the Restricted Period, to the extent  necessary to
   satisfy any withholding tax requirements applicable thereto. 

         9.    Beneficiary Designations.    The Participant  shall file  with
   the Human  Resources Department  of the  Company a  designation of one  or
   more beneficiaries  (each a "Beneficiary")  to whom  shares otherwise  due
   the  Participant shall be  distributed in  the event  of the death  of the
   Participant while  in the  employ of  the Company  or an  Affiliate.   The
   Participant  shall   have  the   right  to   change  the   Beneficiary  or
   Beneficiaries from time to time; provided, however, that any  change shall
   not become effective until received in writing by the  Corporate Secretary
   of  the Company.   If any designated Beneficiary  survives the Participant
   but dies  before receiving  all of  his benefits hereunder,  any remaining
   benefits due  him  shall  be  distributed to  the  deceased  Beneficiary's
   estate. If  there is no effective  Beneficiary designation on file  at the
   time of  the  Participant's death,  or if  the designated  Beneficiary  or
   Beneficiaries have  all predeceased such  Participant, the payment of  any
   remaining benefits shall be made to the Participant's estate.

         10.   Limitation  of Rights.  Nothing  in this Agreement or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give  the Participant or any  other person any interest in any
   fund or in any specified asset or assets of  the Company or any Affiliate;
   or

         (c)   confer  upon the  Participant  the right  to  continue in  the
   employment  or service  of the  Company or  any Affiliate,  or affect  the
   right  of  the Company  or any  Affiliate to  terminate the  employment or
   service of the Participant at any time or for any reason.

         11.   Prerequisites to Benefits.   Neither the Participant,  nor any
   person claiming through the Participant, shall have any right  or interest
   in  the  Restricted  Stock awarded  hereunder,  unless and  until  all the
   terms, conditions  and provisions  of this  Agreement and  the Plan  which
   affect the Participant or such other person shall have been complied  with
   as specified herein.

         12.   Rights as  a  Stockholder.   Subject  to the  limitations  and
   restrictions  contained herein,  the  Participant  (or Beneficiary)  shall
   have all rights as a stockholder with respect  to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         13.   Successors and Assigns.  This  Agreement shall bind and  inure
   to the benefit of and be  enforceable by the Participant, the Company  and
   their   respective    successors   and    assigns   (including    personal
   representatives, heirs and legatees).

         14.   Governing  Law.     This  Agreement  shall  be   governed  by,
   construed  and enforced  in  accordance  with the  laws  of the  State  of
   Delaware.

         15.   Gender and Number.   Whenever the context requires or permits,
   the gender and number of words shall be interchangeable.

         16.   Change of  Control.   For  the purpose  of this  Agreement,  a
   "Change of  Control" shall mean  any "Person" ,  as such  term is used  in
   Section  13(d) and  14(d)  of  the Securities  Exchange  Act  of 1934,  as
   amended (the  "Exchange  Act") (other  than (i)  the Executive,  (ii)  the
   Company or any of  its subsidiaries or Affiliates (as that term is defined
   in  the Exchange Act),  (iii) any Person subject,  as of the  date of this
   Agreement or at  any prior time, to  the reporting or filing  requirements
   of  Section 13(d) of  the Exchange Act with  respect to  the securities of 
   the Company or any Affiliate, (iv) any  trustee or other fiduciary holding
   or  owning securities under  an employee benefit plan  of the Company, (v)
   any underwriter temporarily holding  or owning securities of  the Company,
   or  (vi)  any  corporation owned  directly  or indirectly  by  the current
   stockholders of the Company in substantially the same proportion  as their
   then ownership of  stock of the Company)  becomes, after the date  of this
   Agreement, the  "beneficial owner"  (as defined  in Rule  13d-3 under  the
   Exchange  Act),  directly  or indirectly,  of  securities  of  the Company
   representing forty percent (40%)  or more of the combined  voting power of
   the Company's then outstanding securities.

         This Agreement  is executed and delivered, in duplicate, pursuant to
   the Plan, the provisions of which are incorporated herein by reference.



   Dated:  ________________, 1996



   ATTEST:                             READING & BATES CORPORATION


                                         
                                       By:___________________________
___________________________
Secretary
                                       Its:  Vice President, Human Resources


                                                 
___________________________
(Signature, Wayne K. Hillin)            


                                                                Exhibit 10.46

   READING & BATES CORPORATION
   RESTRICTED STOCK AWARD AGREEMENT


         THIS  AGREEMENT is made as  of the  date set forth  on the signature
   page hereof, between Reading  & Bates Corporation, a Delaware  corporation
   (the "Company"),  and Arnold  L.  Chavkin (the "Participant").   Except as
   defined herein,  capitalized terms shall have the same meaning ascribed to
   them under  the 1996  Director Restricted  Stock Award Plan  of Reading  &
   Bates  Corporation, as from  time to  time amended (the  "Plan").   To the
   extent that  any provision of  this Agreement  conflicts with  the express
   terms of the Plan, it is hereby acknowledged and agreed  that the terms of
   the Plan  shall control and,  if necessary,  the applicable  provisions of
   this  Agreement shall  be hereby  deemed amended  so as  to carry  out the
   purpose and intent of the Plan.

         1.    Award.  In order  to encourage the Participant's  contribution
   to  the successful  performance of  the Company,  in consideration  of the
   covenants and  promises of the  Participant herein contained, and  subject
   to shareholder  approval of  the Plan,  the Company hereby  awards to  the
   Participant  as of   December 3, 1996  (the "Date  of Grant"), a  total of
   9,000  shares of  Common  Stock,  pursuant to  the  Plan,  subject to  the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         2.    Restrictions on  Transfer.   The  shares  of Restricted  Stock
   granted   hereunder  to  the  Participant  may   not  be  sold,  assigned,
   transferred, pledged  or otherwise encumbered from the Date of Grant until
   said shares  shall have become vested in the Participant (and restrictions
   terminated thereon)  in accordance with the provisions of this Paragraph 2
   or as  otherwise provided  in  Paragraph 6  below.   (The  period of  time
   between the Date of  Grant and the vesting  of shares of Restricted  Stock
   shall be referred to herein as the "Restricted Period"  as to those shares
   of stock.)   The Participant shall become vested as  to 33- % of the total
   number of shares of  Restricted Stock awarded hereunder on each of January
   1,  1998, January  1, 1999 and  January 1,   2000; provided, however, that
   the Participant shall  not be vested in  shares of Restricted Stock  which
   would be vested  as of a given  date if the  Participant has not  remained
   continuously a member of  the Board of Directors  of the Company from  the
   date  of  this  Agreement through  such  date  (other  than  by reason  of
   Participant's death,  disability, retirement after the age of 65 or Change
   of Control of the  Company, as defined in  Paragraph 15 hereof), in  which
   event all  of  the Participant's  rights  to such  Restricted Stock  shall
   terminate  without any payment  of consideration by  the Company, and such
   Restricted  Stock shall be  returned to  the Company  and cancelled.   The
   Restricted Period  shall be subject to an earlier termination with respect
   to all  or  a portion  of  the Restricted  Stock  in accordance  with  the
   provisions of Paragraph 6 below.

         3.    No Code  Section 83(b)  Election.   The Participant shall  not
   make  an  election, under  Code  Section 83(b),  to  include an  amount in
   income in respect of this Award of Restricted Stock.

         4.    Sale  of Restricted  Stock.   The Participant  shall  not sell
   Restricted Stock  except pursuant to  an effective  registration statement
   under  the  Securities Act  of  1933  or  pursuant  to an  exemption  from
   registration under such act.

         5.    Escrow  of Certificates.  The certificates representing shares
   of Restricted Stock shall be registered in the name  of the Participant on
   the  Date of Grant and deposited, together  with a stock power endorsed by
   the  Participant in  blank, with  the Corporate  Secretary of  the Company
   during the Restricted  Period.  Each such certificate  shall bear a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions and restrictions described  in the Plan and  in this Agreement.
   Subject to  the provisions of Paragraph  7 below, upon termination  of the
   Restricted  Period  with  respect  to   shares  of  Restricted  Stock,   a
   certificate   representing  such   shares  shall   be  delivered   to  the
   Participant as promptly as practicable following such termination.

         6.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)   a  Change of  Control  that  occurs  after the  Date  of
                     Grant; or

               (ii)  the  termination  of  the Participant's  service  due to
                     death or disability, or  retirement at age 65 or older;

   the Restricted Period set forth in  Paragraph 2 above shall terminate  and
   the Participant's right to  such Restricted Stock shall  become vested and
   nonforfeitable and all restrictions thereon will terminate.  

         (b)   If  the   Participant's  service  with  the  Company  and  all
   Affiliates  terminate prior  to  the occurrence  of  a date  set forth  in
   Paragraph  (a)(i) above  for any  reason other  than death,  disability or
   retirement  described  in Paragraph  (a)(ii)  above,  then all  Restricted
   Stock  awarded to  the  Participant  that  has  not previously  vested  in
   accordance  with Paragraph  2  above  shall  be  forfeited  whereupon  the
   Corporate  Secretary   shall  deliver  to  the  Company  the  certificates
   representing such  shares and  the stock  power previously  deposited with
   the Corporate Secretary pursuant to Paragraph 5 above.

         7.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted  Stock shall be  delivered to the Participant  by the
   Company  upon   the  expiration  of  the   Restricted  Period  unless  the
   Participant  (or Beneficiary, as  defined in Paragraph  8 below) remits to
   the  Company  the amount  of  all  federal, state  and  other governmental
   withholding tax  requirements imposed upon the Company with respect to the
   issuance of  such shares or  unless provisions to so  pay such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject to  Committee  approval,  the  Participant  (or  Beneficiary)  may
   elect, at least thirty  (30) days (or such  other period as the  Committee
   may prescribe) prior to  the vesting of such Restricted Stock,  to satisfy
   such withholding  requirements  by  having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on  the date such shares became vested equal to
   the  amount necessary to  satisfy such withholding  tax requirements.  Any
   election   to  have  shares  withheld   to  satisfy  the  withholding  tax
   requirements  shall  be made  at  such  time and  in  such  manner as  the
   Committee shall prescribe.  Appropriate  withholding may also be  deducted
   from the  payment of any  cash dividends  with respect  to such shares  of
   Restricted Stock  during the Restricted Period, to the extent necessary to
   satisfy any withholding tax requirements applicable thereto.

         8.    Beneficiary Designations.   The  Participant  shall file  with
   the  Corporate  Secretary of  the  Company a  designation of  one  or more
   beneficiaries (each  a  "Beneficiary") to  whom shares  otherwise due  the
   Participant  shall  be  distributed  in the  event  of  the  death  of the
   Participant  while in  the employ  of the  Company or  an Affiliate.   The
   Participant  shall   have  the   right  to   change  the  Beneficiary   or
   Beneficiaries from  time to time; provided, however, that any change shall
   not become  effective until received in writing by the Corporate Secretary
   of  the Company.   If any designated  Beneficiary survives the Participant
   but dies  before receiving all  of his  benefits hereunder,  any remaining
   benefits  due  him shall  be  distributed  to the  deceased  Beneficiary's
   estate. If there  is no effective Beneficiary  designation on file  at the
   time of  the  Participant's death,  or  if the  designated Beneficiary  or
   Beneficiaries have  all predeceased such Participant,  the payment  of any
   remaining benefits shall be made to the Participant's estate.

         9.    Limitation of Rights.   Nothing in this Agreement  or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee; or

         (b)   give the Participant or  any other person any  interest in any
   fund or in any specified asset or assets of the Company or any Affiliate.

         10.   Prerequisites to Benefits.   Neither the Participant, nor  any
   person claiming  through the Participant, shall have any right or interest
   in  the  Restricted Stock  awarded  hereunder,  unless and  until  all the
   terms,  conditions and  provisions of  this Agreement  and the  Plan which
   affect the Participant or such other person  shall have been complied with
   as specified herein.

         11.   Rights  as a  Stockholder.   Subject  to  the limitations  and
   restrictions contained  herein,  the  Participant (or  Beneficiary)  shall
   have all rights as a  stockholder with respect to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         12.   Successors and Assigns.   This Agreement shall bind  and inure
   to the benefit  of and be enforceable by the  Participant, the Company and
   their    respective   successors    and   assigns    (including   personal
   representatives, heirs and legatees).

         13.   Governing  Law.    This   Agreement  shall  be  governed   by,
   construed and  enforced  in accordance  with  the  laws of  the  State  of
   Delaware.

         14.   Gender and Number.  Whenever the  context requires or permits,
   the gender and number of words shall be interchangeable.

         15.   Change of  Control.   For  the  purpose of  this Agreement,  a
   "Change  of Control"  shall mean  any "Person",  as such  term is  used in
   Section  13(d) and  14(d)  of  the Securities  Exchange  Act of  1934,  as
   amended (the  "Exchange  Act") (other  than  (i) the  Executive, (ii)  the
   Company  or any of its subsidiaries or Affiliates (as that term is defined
   in the Exchange  Act), (iii) any  Person subject, as  of the date  of this
   Agreement or at  any prior time, to  the reporting or  filing requirements
   of  Section 13(d) of the  Exchange Act  with respect to  the securities of
   the Company or any Affiliate, (iv) any trustee  or other fiduciary holding
   or owning  securities under an  employee benefit plan of  the Company, (v)
   any underwriter temporarily  holding or owning securities of  the Company,
   or  (vi)  any corporation  owned  directly  or indirectly  by  the current
   stockholders of  the Company in substantially the same proportion as their
   then ownership of stock  of the Company) becomes,  after the date of  this
   Agreement,  the "beneficial  owner" (as  defined in  Rule 13d-3  under the
   Exchange  Act),  directly or  indirectly,  of  securities of  the  Company
   representing forty percent (40%) or  more of the combined voting  power of
   the Company's then outstanding securities.

   This  Agreement is executed  and delivered, in  duplicate, pursuant to the
   Plan, the provisions of which are incorporated herein by reference. 


   Dated:                   , 1997

   ATTEST:                                   READING & BATES CORPORATION


   ___________________________            By:
   __________________________________
   Secretary
                                          Its:  Chairman and Chief Executive 
                                                Officer

   ___________________________
   (Signature, Arnold  L. Chavkin)


                                                                Exhibit 10.47

                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS  AGREEMENT is made as  of the  date set forth  on the signature
   page hereof, between Reading  & Bates Corporation, a Delaware  corporation
   (the "Company"), and Charles   A. Donabedian (the  "Participant").  Except
   as defined  herein, capitalized terms shall have the same meaning ascribed
   to them under the 1996  Director Restricted Stock Award Plan of  Reading &
   Bates  Corporation, as from  time to  time amended (the  "Plan").   To the
   extent that  any provision of  this Agreement  conflicts with  the express
   terms of the Plan, it is hereby acknowledged and agreed  that the terms of
   the Plan  shall control and,  if necessary,  the applicable  provisions of
   this  Agreement shall  be hereby  deemed amended  so as  to carry  out the
   purpose and intent of the Plan.

         1.    Award.  In order  to encourage the Participant's  contribution
   to  the successful  performance of  the Company,  in consideration  of the
   covenants and  promises of the  Participant herein contained, and  subject
   to shareholder  approval of  the Plan,  the Company hereby  awards to  the
   Participant  as of   December 3, 1996  (the "Date  of Grant"), a  total of
   9,000  shares of  Common  Stock,  pursuant to  the  Plan,  subject to  the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         2.    Restrictions on  Transfer.   The  shares  of Restricted  Stock
   granted   hereunder  to  the  Participant  may   not  be  sold,  assigned,
   transferred, pledged  or otherwise encumbered from the Date of Grant until
   said shares  shall have become vested in the Participant (and restrictions
   terminated thereon)  in accordance with the provisions of this Paragraph 2
   or as  otherwise provided  in  Paragraph 6  below.   (The  period of  time
   between the Date of  Grant and the vesting  of shares of Restricted  Stock
   shall be referred to herein as the "Restricted Period"  as to those shares
   of stock.)   The Participant shall become vested as  to 33- % of the total
   number of shares of  Restricted Stock awarded hereunder on each of January
   1,  1998, January  1, 1999 and  January 1,   2000; provided, however, that
   the Participant shall  not be vested in  shares of Restricted Stock  which
   would be vested  as of a given  date if the  Participant has not  remained
   continuously a member of  the Board of Directors  of the Company from  the
   date  of  this  Agreement through  such  date  (other  than  by reason  of
   Participant's death,  disability, retirement after the age of 65 or Change
   of Control of the  Company, as defined in  Paragraph 15 hereof), in  which
   event all  of  the Participant's  rights  to such  Restricted Stock  shall
   terminate  without any payment  of consideration by  the Company, and such
   Restricted  Stock shall be  returned to  the Company  and cancelled.   The
   Restricted Period  shall be subject to an earlier termination with respect
   to all  or  a portion  of  the Restricted  Stock  in accordance  with  the
   provisions of Paragraph 6 below.

         3.    No Code  Section 83(b)  Election.   The Participant shall  not
   make  an  election, under  Code  Section 83(b),  to  include an  amount in
   income in respect of this Award of Restricted Stock.

         4.    Sale  of Restricted  Stock.   The Participant  shall  not sell
   Restricted Stock  except pursuant to  an effective  registration statement
   under  the  Securities Act  of  1933  or  pursuant  to an  exemption  from
   registration under such act.

         5.    Escrow  of Certificates.  The certificates representing shares
   of Restricted Stock shall be registered in the name  of the Participant on
   the  Date of Grant and deposited, together  with a stock power endorsed by 
   the  Participant in  blank, with  the Corporate  Secretary of  the Company
   during the Restricted  Period.  Each such certificate  shall bear a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions and restrictions described  in the Plan and  in this Agreement.
   Subject to  the provisions of Paragraph  7 below, upon termination  of the
   Restricted  Period  with  respect  to   shares  of  Restricted  Stock,   a
   certificate   representing  such   shares  shall   be  delivered   to  the
   Participant as promptly as practicable following such termination.

         6.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)   a  Change of  Control  that  occurs  after the  Date  of
                     Grant; or

               (ii)  the  termination  of  the Participant's  service  due to
                     death or disability, or  retirement at age 65 or older;

   the Restricted Period set forth in  Paragraph 2 above shall terminate  and
   the Participant's right to  such Restricted Stock shall  become vested and
   nonforfeitable and all restrictions thereon will terminate.  

         (b)   If  the   Participant's  service  with  the  Company  and  all
   Affiliates  terminate prior  to  the occurrence  of  a date  set forth  in
   Paragraph  (a)(i) above  for any  reason other  than death,  disability or
   retirement  described  in Paragraph  (a)(ii)  above,  then all  Restricted
   Stock  awarded to  the  Participant  that  has  not previously  vested  in
   accordance  with Paragraph  2  above  shall  be  forfeited  whereupon  the
   Corporate  Secretary   shall  deliver  to  the  Company  the  certificates
   representing such  shares and  the stock  power previously  deposited with
   the Corporate Secretary pursuant to Paragraph 5 above.

         7.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted  Stock shall be  delivered to the Participant  by the
   Company  upon   the  expiration  of  the   Restricted  Period  unless  the
   Participant  (or Beneficiary, as  defined in Paragraph  8 below) remits to
   the  Company  the amount  of  all  federal, state  and  other governmental
   withholding tax  requirements imposed upon the Company with respect to the
   issuance of  such shares or  unless provisions to so  pay such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject to  Committee  approval,  the  Participant  (or  Beneficiary)  may
   elect, at least thirty  (30) days (or such  other period as the  Committee
   may prescribe) prior to  the vesting of such Restricted Stock,  to satisfy
   such withholding  requirements  by  having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on  the date such shares became vested equal to
   the  amount necessary to  satisfy such withholding  tax requirements.  Any
   election   to  have  shares  withheld   to  satisfy  the  withholding  tax
   requirements  shall  be made  at  such  time and  in  such  manner as  the
   Committee shall prescribe.  Appropriate  withholding may also be  deducted
   from the  payment of any  cash dividends  with respect  to such shares  of
   Restricted Stock  during the Restricted Period, to the extent necessary to
   satisfy any withholding tax requirements applicable thereto.

         8.    Beneficiary Designations.   The  Participant  shall file  with
   the  Corporate  Secretary of  the  Company a  designation of  one  or more
   beneficiaries (each  a  "Beneficiary") to  whom shares  otherwise due  the
   Participant  shall  be  distributed  in the  event  of  the  death  of the
   Participant  while in  the employ  of the  Company or  an Affiliate.   The
   Participant  shall   have  the   right  to   change  the  Beneficiary   or
   Beneficiaries from  time to time; provided, however, that any change shall
   not become  effective until received in writing by the Corporate Secretary 
   of  the Company.   If any designated  Beneficiary survives the Participant
   but dies  before receiving all  of his  benefits hereunder,  any remaining
   benefits  due  him shall  be  distributed  to the  deceased  Beneficiary's
   estate. If there  is no effective Beneficiary  designation on file  at the
   time of  the  Participant's death,  or  if the  designated Beneficiary  or
   Beneficiaries have  all predeceased such Participant,  the payment  of any
   remaining benefits shall be made to the Participant's estate.

         9.    Limitation of Rights.   Nothing in this Agreement  or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee; or

         (b)   give the Participant or  any other person any  interest in any
   fund or in any specified asset or assets of the Company or any Affiliate.

         10.   Prerequisites to Benefits.   Neither the Participant, nor  any
   person claiming  through the Participant, shall have any right or interest
   in  the  Restricted Stock  awarded  hereunder,  unless and  until  all the
   terms,  conditions and  provisions of  this Agreement  and the  Plan which
   affect the Participant or such other person  shall have been complied with
   as specified herein.

         11.   Rights  as a  Stockholder.   Subject  to  the limitations  and
   restrictions contained  herein,  the  Participant (or  Beneficiary)  shall
   have all rights as a  stockholder with respect to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         12.   Successors and Assigns.   This Agreement shall bind  and inure
   to the benefit  of and be enforceable by the  Participant, the Company and
   their    respective   successors    and   assigns    (including   personal
   representatives, heirs and legatees).

         13.   Governing  Law.    This   Agreement  shall  be  governed   by,
   construed and  enforced  in accordance  with  the  laws of  the  State  of
   Delaware.

         14.   Gender and Number.  Whenever the  context requires or permits,
   the gender and number of words shall be interchangeable.

         15.   Change of  Control.   For  the  purpose of  this Agreement,  a
   "Change  of Control"  shall mean  any "Person",  as such  term is  used in
   Section  13(d) and  14(d)  of  the Securities  Exchange  Act of  1934,  as
   amended (the  "Exchange  Act") (other  than  (i) the  Executive, (ii)  the
   Company  or any of its subsidiaries or Affiliates (as that term is defined
   in the Exchange  Act), (iii) any  Person subject, as  of the date  of this
   Agreement or at  any prior time, to  the reporting or  filing requirements
   of  Section 13(d) of the  Exchange Act  with respect to  the securities of
   the Company or any Affiliate, (iv) any trustee  or other fiduciary holding
   or owning  securities under an  employee benefit plan of  the Company, (v)
   any underwriter temporarily  holding or owning securities of  the Company,
   or  (vi)  any corporation  owned  directly  or indirectly  by  the current
   stockholders of  the Company in substantially the same proportion as their
   then ownership of stock  of the Company) becomes,  after the date of  this
   Agreement,  the "beneficial  owner" (as  defined in  Rule 13d-3  under the
   Exchange  Act),  directly or  indirectly,  of  securities of  the  Company
   representing forty percent (40%) or  more of the combined voting  power of
   the Company's then outstanding securities.

   This  Agreement is executed  and delivered, in  duplicate, pursuant to the
   Plan, the provisions of which are incorporated herein by reference. 



   Dated:                   , 1997

   ATTEST:                                   READING & BATES CORPORATION


   ___________________________            By:
   __________________________________
   Secretary
                                          Its:  Chairman and Chief
                                                Executive Officer

   ___________________________
   (Signature, Charles  A. Donabedian)


                                                                Exhibit 10.48


                          READING & BATES CORPORATION
                       RESTRICTED STOCK AWARD AGREEMENT


        THIS AGREEMENT is made as of the date set forth on the signature page
  hereof,  between Reading & Bates  Corporation, a Delaware  corporation (the
  "Company"), and  Ted    Kalborg (the  "Participant").   Except  as  defined
  herein, capitalized  terms shall  have the  same meaning  ascribed to  them
  under  the 1996 Director  Restricted Stock  Award Plan  of Reading  & Bates
  Corporation, as from time to time amended (the "Plan").  To the extent that
  any provision  of this  Agreement conflicts with the  express terms  of the
  Plan, it is hereby acknowledged and agreed that the terms of the Plan shall
  control  and, if  necessary, the  applicable  provisions of  this Agreement
  shall be hereby deemed amended so as to carry out the purpose and intent of
  the Plan.

        1.    Award.  In order to encourage the Participant's contribution to
  the  successful  performance  of  the  Company,  in  consideration  of  the
  covenants and promises of the Participant herein contained, and  subject to
  shareholder  approval  of the  Plan,  the  Company  hereby  awards  to  the
  Participant as of  December 3, 1996 (the "Date of Grant"), a total of 9,000
  shares of Common Stock, pursuant to the Plan, subject to the conditions and
  restrictions set forth below and in the Plan (the "Restricted Stock").

        2.    Restrictions  on  Transfer.    The shares  of  Restricted Stock
  granted  hereunder  to   the  Participant   may  not  be  sold,   assigned,
  transferred, pledged  or otherwise encumbered from the Date  of Grant until
  said shares  shall have become vested in the  Participant (and restrictions
  terminated thereon)  in accordance with the provisions of  this Paragraph 2
  or as otherwise provided in Paragraph 6 below.  (The period of time between
  the Date of  Grant and the vesting  of shares of Restricted Stock  shall be
  referred to herein as the "Restricted Period" as to those shares of stock.)
  The  Participant  shall become vested  as to 33- %  of the total  number of
  shares of  Restricted Stock awarded hereunder  on each of January  1, 1998,
  January  1,  1999  and  January  1,    2000; provided,  however,  that  the
  Participant shall not be  vested in shares of Restricted  Stock which would
  be  vested as  of  a  given  date  if  the  Participant  has  not  remained
  continuously a member  of the Board  of Directors  of the Company  from the
  date  of  this  Agreement through  such  date  (other  than  by  reason  of
  Participant's death,  disability, retirement after the age of  65 or Change
  of Control of  the Company, as  defined in  Paragraph 15 hereof),  in which
  event all  of  the  Participant's rights  to such  Restricted  Stock  shall
  terminate  without any payment  of consideration by  the Company,  and such
  Restricted Stock  shall  be returned  to the  Company and  cancelled.   The
  Restricted Period  shall be subject to an earlier  termination with respect
  to  all  or  a  portion of  the  Restricted Stock  in  accordance  with the
  provisions of Paragraph 6 below.

        3.    No Code Section 83(b) Election.  The Participant shall not make
  an election, under  Code Section 83(b), to  include an amount in  income in
  respect of this Award of Restricted Stock.

        4.    Sale  of  Restricted  Stock.   The  Participant shall  not sell
  Restricted Stock  except pursuant  to an  effective registration  statement
  under  the  Securities Act  of  1933  or  pursuant  to  an  exemption  from
  registration under such act.

        5.    Escrow  of Certificates.  The  certificates representing shares
  of Restricted Stock shall  be registered in the name  of the Participant on
  the Date of  Grant and deposited, together  with a stock power  endorsed by 
  the  Participant in  blank,  with the  Corporate Secretary  of  the Company
  during the Restricted Period.  Each such certificate shall bear a legend as
  provided by  the Company, conspicuously referring  to the terms, conditions
  and  restrictions described in the Plan and in  this Agreement.  Subject to
  the  provisions of Paragraph  7 below, upon  termination of  the Restricted
  Period  with  respect   to  shares  of  Restricted  Stock,   a  certificate
  representing such shares shall be delivered to the Participant  as promptly
  as practicable following such termination.

        6.    Accelerated Vesting of Restricted Stock.

        (a)   Upon the first to occur of:

              (i)   a Change of Control that occurs after the Date  of Grant;
                    or

              (ii)  the termination of the Participant's service due to death
                    or disability, or  retirement at age 65 or older;

  the  Restricted Period set forth  in Paragraph 2 above  shall terminate and
  the Participant's right  to such Restricted Stock  shall become vested  and
  nonforfeitable and all restrictions thereon will terminate.  

        (b)   If  the  Participant's   service  with  the  Company   and  all
  Affiliates  terminate prior  to  the  occurrence of  a  date set  forth  in
  Paragraph  (a)(i) above  for  any reason  other than  death,  disability or
  retirement described in Paragraph (a)(ii) above, then  all Restricted Stock
  awarded  to the Participant  that has not  previously vested  in accordance
  with Paragraph 2 above shall be forfeited whereupon the Corporate Secretary
  shall deliver to the Company the certificates representing such  shares and
  the stock power previously deposited with  the Corporate Secretary pursuant
  to Paragraph 5 above.

        7.    Withholding  of Taxes.  No certificates representing the shares
  of Restricted  Stock shall be delivered  to the Participant  by the Company
  upon  the expiration of  the Restricted Period  unless the  Participant (or
  Beneficiary,  as defined in  Paragraph 8  below) remits to the  Company the
  amount  of  all  federal,  state and  other  governmental  withholding  tax
  requirements imposed upon the Company with  respect to the issuance of such
  shares or unless  provisions to so pay  such withholding requirements  have
  been  made  to the  satisfaction of  the Committee.   Subject  to Committee
  approval, the Participant (or Beneficiary) may elect, at least  thirty (30)
  days (or such  other period as the  Committee may prescribe)  prior to  the
  vesting of such Restricted Stock,  to satisfy such withholding requirements
  by  having the Company withhold  shares otherwise deliverable  hereunder to
  the Participant  (or Beneficiary) having a  Fair Market  Value on the  date
  such shares  became vested  equal to the amount  necessary to  satisfy such
  withholding tax  requirements.   Any election  to have  shares withheld  to
  satisfy the withholding tax requirements shall be made at such  time and in
  such manner as the Committee shall prescribe.  Appropriate  withholding may
  also be  deducted from  the payment of  any cash dividends with  respect to
  such shares of Restricted Stock during the Restricted Period, to the extent
  necessary to satisfy any withholding tax requirements applicable thereto.

        8.    Beneficiary  Designations.  The Participant shall file with the
  Corporate  Secretary   of  the  Company  a  designation  of   one  or  more
  beneficiaries  (each a  "Beneficiary")  to  whom shares  otherwise  due the
  Participant  shall  be distributed  in  the  event  of  the  death  of  the
  Participant while  in the  employ of  the  Company or  an Affiliate.    The
  Participant shall have the right to change the Beneficiary or Beneficiaries
  from time to  time; provided,  however, that  any change  shall not  become
  effective  until received  in  writing by  the Corporate  Secretary  of the
  Company.   If any designated Beneficiary survives the  Participant but dies
  before receiving all of his benefits hereunder, any remaining  benefits due
  him shall be distributed to the deceased Beneficiary's estate.  If there is
  no  effective   Beneficiary  designation  on  file  at  the   time  of  the
  Participant's death, or if the designated Beneficiary or Beneficiaries have
  all  predeceased such  Participant, the payment  of any  remaining benefits
  shall be made to the Participant's estate.

        9.    Limitation of Rights.   Nothing in this  Agreement or the  Plan
  shall be construed to:

        (a)   give the  Participant  any  right  to be  awarded  any  further
  restricted stock other than in the sole discretion of the Committee; or

        (b)   give the Participant  or any other person  any interest in  any
  fund or in any specified asset or assets of the Company or any Affiliate.

        10.   Prerequisites  to Benefits.   Neither the Participant,  nor any
  person claiming  through the Participant, shall have any  right or interest
  in the Restricted Stock awarded hereunder, unless and until all  the terms,
  conditions and provisions of  this Agreement and the Plan which  affect the
  Participant or such other person shall have been complied with as specified
  herein.

        11.   Rights  as  a  Stockholder.   Subject  to  the  limitations and
  restrictions  contained herein, the Participant (or Beneficiary) shall have
  all rights as a stockholder with  respect to the shares of Restricted Stock
  once such shares have been registered in his name hereunder.

        12.   Successors and Assigns.  This Agreement shall bind and inure to
  the benefit of and be enforceable by the Participant, the Company and their
  respective  successors  and  assigns  (including personal  representatives,
  heirs and legatees).

        13.   Governing Law.  This  Agreement shall be governed by, construed
  and enforced in accordance with the laws of the State of Delaware.

        14.   Gender and  Number.  Whenever the context  requires or permits,
  the gender and number of words shall be interchangeable.

        15.   Change of  Control.    For the  purpose of  this  Agreement,  a
  "Change of  Control" shall  mean any  "Person",  as such  term is  used  in
  Section 13(d)  and 14(d) of the Securities Exchange Act of 1934, as amended
  (the "Exchange Act") (other than (i) the Executive, (ii) the Company or any
  of its subsidiaries or Affiliates (as  that term is defined in the Exchange
  Act),  (iii) any Person subject, as of the date of this Agreement or at any
  prior time, to the reporting or filing requirements of Section 13(d) of the
  Exchange  Act  with respect  to  the  securities  of  the  Company  or  any
  Affiliate, (iv) any trustee or other fiduciary holding or owning securities
  under  an  employee benefit  plan  of  the  Company,  (v)  any  underwriter
  temporarily holding  or  owning  securities of  the Company,  or  (vi)  any
  corporation owned directly or indirectly by the current stockholders of the
  Company  in substantially the  same proportion as  their then  ownership of
  stock of  the  Company) becomes,  after  the date  of this  Agreement,  the
  "beneficial  owner" (as  defined  in Rule  13d-3 under  the  Exchange Act),
  directly or  indirectly, of  securities of the  Company representing  forty
  percent (40%) or  more of the combined  voting power of the  Company's then
  outstanding securities.

  This  Agreement is executed  and delivered, in  duplicate, pursuant  to the
  Plan, the provisions of which are incorporated herein by reference.

  Dated:                   , 1997 
  ATTEST:                                   READING & BATES CORPORATION


  ___________________________            By:
  __________________________________
  Secretary
                                         Its:   Chairman and Chief Executive
                                                Officer

  ___________________________
  (Signature, Ted  Kalborg) 


                                                                Exhibit 10.49

   READING & BATES CORPORATION
   RESTRICTED STOCK AWARD AGREEMENT


         THIS  AGREEMENT is made as  of the  date set forth  on the signature
   page hereof, between Reading  & Bates Corporation, a Delaware  corporation
   (the "Company"), and Macko A. E.  Laqueur (the "Participant").  Except  as
   defined herein,  capitalized terms shall have the same meaning ascribed to
   them under  the 1996  Director Restricted  Stock Award Plan  of Reading  &
   Bates  Corporation, as from  time to  time amended (the  "Plan").   To the
   extent that  any provision of  this Agreement  conflicts with  the express
   terms of the Plan, it is hereby acknowledged and agreed  that the terms of
   the Plan  shall control and,  if necessary,  the applicable  provisions of
   this  Agreement shall  be hereby  deemed amended  so as  to carry  out the
   purpose and intent of the Plan.

         1.    Award.  In order  to encourage the Participant's  contribution
   to  the successful  performance of  the Company,  in consideration  of the
   covenants and  promises of the  Participant herein contained, and  subject
   to shareholder  approval of  the Plan,  the Company hereby  awards to  the
   Participant  as of   December 3, 1996  (the "Date  of Grant"), a  total of
   9,000  shares of  Common  Stock,  pursuant to  the  Plan,  subject to  the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         2.    Restrictions on  Transfer.   The  shares  of Restricted  Stock
   granted   hereunder  to  the  Participant  may   not  be  sold,  assigned,
   transferred, pledged  or otherwise encumbered from the Date of Grant until
   said shares  shall have become vested in the Participant (and restrictions
   terminated thereon)  in accordance with the provisions of this Paragraph 2
   or as  otherwise provided  in  Paragraph 6  below.   (The  period of  time
   between the Date of  Grant and the vesting  of shares of Restricted  Stock
   shall be referred to herein as the "Restricted Period"  as to those shares
   of stock.)   The Participant shall become vested as  to 33- % of the total
   number of shares of  Restricted Stock awarded hereunder on each of January
   1,  1998, January  1, 1999 and  January 1,   2000; provided, however, that
   the Participant shall  not be vested in  shares of Restricted Stock  which
   would be vested  as of a given  date if the  Participant has not  remained
   continuously a member of  the Board of Directors  of the Company from  the
   date  of  this  Agreement through  such  date  (other  than  by reason  of
   Participant's death,  disability, retirement after the age of 65 or Change
   of Control of the  Company, as defined in  Paragraph 15 hereof), in  which
   event all  of  the Participant's  rights  to such  Restricted Stock  shall
   terminate  without any payment  of consideration by  the Company, and such
   Restricted  Stock shall be  returned to  the Company  and cancelled.   The
   Restricted Period  shall be subject to an earlier termination with respect
   to all  or  a portion  of  the Restricted  Stock  in accordance  with  the
   provisions of Paragraph 6 below.

         3.    No Code  Section 83(b)  Election.   The Participant shall  not
   make  an  election, under  Code  Section 83(b),  to  include an  amount in
   income in respect of this Award of Restricted Stock.

         4.    Sale  of Restricted  Stock.   The Participant  shall  not sell
   Restricted Stock  except pursuant to  an effective  registration statement
   under  the  Securities Act  of  1933  or  pursuant  to an  exemption  from
   registration under such act.

         5.    Escrow  of Certificates.  The certificates representing shares
   of Restricted Stock shall be registered in the name  of the Participant on
   the  Date of Grant and deposited, together  with a stock power endorsed by 
   the  Participant in  blank, with  the Corporate  Secretary of  the Company
   during the Restricted  Period.  Each such certificate  shall bear a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions and restrictions described  in the Plan and  in this Agreement.
   Subject to  the provisions of Paragraph  7 below, upon termination  of the
   Restricted  Period  with  respect  to   shares  of  Restricted  Stock,   a
   certificate   representing  such   shares  shall   be  delivered   to  the
   Participant as promptly as practicable following such termination.

         6.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)   a  Change of  Control  that  occurs  after the  Date  of
                     Grant; or

               (ii)  the  termination  of  the Participant's  service  due to
                     death or disability, or  retirement at age 65 or older;

   the Restricted Period set forth in  Paragraph 2 above shall terminate  and
   the Participant's right to  such Restricted Stock shall  become vested and
   nonforfeitable and all restrictions thereon will terminate.  

         (b)   If  the   Participant's  service  with  the  Company  and  all
   Affiliates  terminate prior  to  the occurrence  of  a date  set forth  in
   Paragraph  (a)(i) above  for any  reason other  than death,  disability or
   retirement  described  in Paragraph  (a)(ii)  above,  then all  Restricted
   Stock  awarded to  the  Participant  that  has  not previously  vested  in
   accordance  with Paragraph  2  above  shall  be  forfeited  whereupon  the
   Corporate  Secretary   shall  deliver  to  the  Company  the  certificates
   representing such  shares and  the stock  power previously  deposited with
   the Corporate Secretary pursuant to Paragraph 5 above.

         7.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted  Stock shall be  delivered to the Participant  by the
   Company  upon   the  expiration  of  the   Restricted  Period  unless  the
   Participant  (or Beneficiary, as  defined in Paragraph  8 below) remits to
   the  Company  the amount  of  all  federal, state  and  other governmental
   withholding tax  requirements imposed upon the Company with respect to the
   issuance of  such shares or  unless provisions to so  pay such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject to  Committee  approval,  the  Participant  (or  Beneficiary)  may
   elect, at least thirty  (30) days (or such  other period as the  Committee
   may prescribe) prior to  the vesting of such Restricted Stock,  to satisfy
   such withholding  requirements  by  having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on  the date such shares became vested equal to
   the  amount necessary to  satisfy such withholding  tax requirements.  Any
   election   to  have  shares  withheld   to  satisfy  the  withholding  tax
   requirements  shall  be made  at  such  time and  in  such  manner as  the
   Committee shall prescribe.  Appropriate  withholding may also be  deducted
   from the  payment of any  cash dividends  with respect  to such shares  of
   Restricted Stock  during the Restricted Period, to the extent necessary to
   satisfy any withholding tax requirements applicable thereto.

         8.    Beneficiary Designations.   The  Participant  shall file  with
   the  Corporate  Secretary of  the  Company a  designation of  one  or more
   beneficiaries (each  a  "Beneficiary") to  whom shares  otherwise due  the
   Participant  shall  be  distributed  in the  event  of  the  death  of the
   Participant  while in  the employ  of the  Company or  an Affiliate.   The
   Participant  shall   have  the   right  to   change  the  Beneficiary   or
   Beneficiaries from  time to time; provided, however, that any change shall
   not become  effective until received in writing by the Corporate Secretary 
   of  the Company.   If any designated  Beneficiary survives the Participant
   but dies  before receiving all  of his  benefits hereunder,  any remaining
   benefits  due  him shall  be  distributed  to the  deceased  Beneficiary's
   estate. If there  is no effective Beneficiary  designation on file  at the
   time of  the  Participant's death,  or  if the  designated Beneficiary  or
   Beneficiaries have  all predeceased such Participant,  the payment  of any
   remaining benefits shall be made to the Participant's estate.

         9.    Limitation of Rights.   Nothing in this Agreement  or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee; or

         (b)   give the Participant or  any other person any  interest in any
   fund or in any specified asset or assets of the Company or any Affiliate.

         10.   Prerequisites to Benefits.   Neither the Participant, nor  any
   person claiming  through the Participant, shall have any right or interest
   in  the  Restricted Stock  awarded  hereunder,  unless and  until  all the
   terms,  conditions and  provisions of  this Agreement  and the  Plan which
   affect the Participant or such other person  shall have been complied with
   as specified herein.

         11.   Rights  as a  Stockholder.   Subject  to  the limitations  and
   restrictions contained  herein,  the  Participant (or  Beneficiary)  shall
   have all rights as a  stockholder with respect to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         12.   Successors and Assigns.   This Agreement shall bind  and inure
   to the benefit  of and be enforceable by the  Participant, the Company and
   their    respective   successors    and   assigns    (including   personal
   representatives, heirs and legatees).

         13.   Governing  Law.    This   Agreement  shall  be  governed   by,
   construed and  enforced  in accordance  with  the  laws of  the  State  of
   Delaware.

         14.   Gender and Number.  Whenever the  context requires or permits,
   the gender and number of words shall be interchangeable.

         15.   Change of  Control.   For  the  purpose of  this Agreement,  a
   "Change  of Control"  shall mean  any "Person",  as such  term is  used in
   Section  13(d) and  14(d)  of  the Securities  Exchange  Act of  1934,  as
   amended (the  "Exchange  Act") (other  than  (i) the  Executive, (ii)  the
   Company  or any of its subsidiaries or Affiliates (as that term is defined
   in the Exchange  Act), (iii) any  Person subject, as  of the date  of this
   Agreement or at  any prior time, to  the reporting or  filing requirements
   of  Section 13(d) of the  Exchange Act  with respect to  the securities of
   the Company or any Affiliate, (iv) any trustee  or other fiduciary holding
   or owning  securities under an  employee benefit plan of  the Company, (v)
   any underwriter temporarily  holding or owning securities of  the Company,
   or  (vi)  any corporation  owned  directly  or indirectly  by  the current
   stockholders of  the Company in substantially the same proportion as their
   then ownership of stock  of the Company) becomes,  after the date of  this
   Agreement,  the "beneficial  owner" (as  defined in  Rule 13d-3  under the
   Exchange  Act),  directly or  indirectly,  of  securities of  the  Company
   representing forty percent (40%) or  more of the combined voting  power of
   the Company's then outstanding securities.

   This  Agreement is executed  and delivered, in  duplicate, pursuant to the
   Plan, the provisions of which are incorporated herein by reference. 


   Dated:                   , 1997

   ATTEST:                                   READING & BATES CORPORATION


   ___________________________            By:
   __________________________________
   Secretary
                                          Its:  Chairman and Chief
                                                Executive Officer

   ___________________________
   (Signature, Macko A. E. Laqueur)


                                                                Exhibit 10.50

   READING & BATES CORPORATION
   RESTRICTED STOCK AWARD AGREEMENT


         THIS  AGREEMENT is made as  of the  date set forth  on the signature
   page hereof, between Reading  & Bates Corporation, a Delaware  corporation
   (the "Company"), and J.W.  McLean (the "Participant").   Except as defined
   herein, capitalized  terms shall have  the same  meaning ascribed  to them
   under the  1996 Director Restricted  Stock Award Plan  of Reading &  Bates
   Corporation, as  from time to  time amended (the "Plan").   To  the extent
   that any provision  of this Agreement conflicts with  the express terms of
   the Plan, it is hereby acknowledged and agreed that the  terms of the Plan
   shall control  and,  if  necessary,  the  applicable  provisions  of  this
   Agreement shall be hereby  deemed amended so as  to carry out the  purpose
   and intent of the Plan.

         1.    Award.  In order  to encourage the Participant's  contribution
   to  the successful  performance of  the Company,  in consideration  of the
   covenants and  promises of the  Participant herein contained, and  subject
   to shareholder  approval of  the Plan,  the Company hereby  awards to  the
   Participant  as of   December 3, 1996  (the "Date  of Grant"), a  total of
   9,000  shares of  Common  Stock,  pursuant to  the  Plan,  subject to  the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         2.    Restrictions on  Transfer.   The  shares  of Restricted  Stock
   granted   hereunder  to  the  Participant  may   not  be  sold,  assigned,
   transferred, pledged  or otherwise encumbered from the Date of Grant until
   said shares  shall have become vested in the Participant (and restrictions
   terminated thereon)  in accordance with the provisions of this Paragraph 2
   or as  otherwise provided  in  Paragraph 6  below.   (The  period of  time
   between the Date of  Grant and the vesting  of shares of Restricted  Stock
   shall be referred to herein as the "Restricted Period"  as to those shares
   of stock.)   The Participant shall become vested as  to 33- % of the total
   number of shares of  Restricted Stock awarded hereunder on each of January
   1,  1998, January  1, 1999 and  January 1,   2000; provided, however, that
   the Participant shall  not be vested in  shares of Restricted Stock  which
   would be vested  as of a given  date if the  Participant has not  remained
   continuously a member of  the Board of Directors  of the Company from  the
   date  of  this  Agreement through  such  date  (other  than  by reason  of
   Participant's death,  disability, retirement after the age of 65 or Change
   of Control of the  Company, as defined in  Paragraph 15 hereof), in  which
   event all  of  the Participant's  rights  to such  Restricted Stock  shall
   terminate  without any payment  of consideration by  the Company, and such
   Restricted  Stock shall be  returned to  the Company  and cancelled.   The
   Restricted Period  shall be subject to an earlier termination with respect
   to all  or  a portion  of  the Restricted  Stock  in accordance  with  the
   provisions of Paragraph 6 below.

         3.    No Code  Section 83(b)  Election.   The Participant shall  not
   make  an  election, under  Code  Section 83(b),  to  include an  amount in
   income in respect of this Award of Restricted Stock.

         4.    Sale  of Restricted  Stock.   The Participant  shall  not sell
   Restricted Stock  except pursuant to  an effective  registration statement
   under  the  Securities Act  of  1933  or  pursuant  to an  exemption  from
   registration under such act.

         5.    Escrow  of Certificates.  The certificates representing shares
   of Restricted Stock shall be registered in the name  of the Participant on
   the  Date of Grant and deposited, together  with a stock power endorsed by 
   the  Participant in  blank, with  the Corporate  Secretary of  the Company
   during the Restricted  Period.  Each such certificate  shall bear a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions and restrictions described  in the Plan and  in this Agreement.
   Subject to  the provisions of Paragraph  7 below, upon termination  of the
   Restricted  Period  with  respect  to   shares  of  Restricted  Stock,   a
   certificate   representing  such   shares  shall   be  delivered   to  the
   Participant as promptly as practicable following such termination.

         6.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)   a  Change of  Control  that  occurs  after the  Date  of
                     Grant; or

               (ii)  the  termination  of  the Participant's  service  due to
                     death or disability, or  retirement at age 65 or older;

   the Restricted Period set forth in  Paragraph 2 above shall terminate  and
   the Participant's right to  such Restricted Stock shall  become vested and
   nonforfeitable and all restrictions thereon will terminate.  

         (b)   If  the   Participant's  service  with  the  Company  and  all
   Affiliates  terminate prior  to  the occurrence  of  a date  set forth  in
   Paragraph  (a)(i) above  for any  reason other  than death,  disability or
   retirement  described  in Paragraph  (a)(ii)  above,  then all  Restricted
   Stock  awarded to  the  Participant  that  has  not previously  vested  in
   accordance  with Paragraph  2  above  shall  be  forfeited  whereupon  the
   Corporate  Secretary   shall  deliver  to  the  Company  the  certificates
   representing such  shares and  the stock  power previously  deposited with
   the Corporate Secretary pursuant to Paragraph 5 above.

         7.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted  Stock shall be  delivered to the Participant  by the
   Company  upon   the  expiration  of  the   Restricted  Period  unless  the
   Participant  (or Beneficiary, as  defined in Paragraph  8 below) remits to
   the  Company  the amount  of  all  federal, state  and  other governmental
   withholding tax  requirements imposed upon the Company with respect to the
   issuance of  such shares or  unless provisions to so  pay such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject to  Committee  approval,  the  Participant  (or  Beneficiary)  may
   elect, at least thirty  (30) days (or such  other period as the  Committee
   may prescribe) prior to  the vesting of such Restricted Stock,  to satisfy
   such withholding  requirements  by  having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on  the date such shares became vested equal to
   the  amount necessary to  satisfy such withholding  tax requirements.  Any
   election   to  have  shares  withheld   to  satisfy  the  withholding  tax
   requirements  shall  be made  at  such  time and  in  such  manner as  the
   Committee shall prescribe.  Appropriate  withholding may also be  deducted
   from the  payment of any  cash dividends  with respect  to such shares  of
   Restricted Stock  during the Restricted Period, to the extent necessary to
   satisfy any withholding tax requirements applicable thereto.

         8.    Beneficiary Designations.   The  Participant  shall file  with
   the  Corporate  Secretary of  the  Company a  designation of  one  or more
   beneficiaries (each  a  "Beneficiary") to  whom shares  otherwise due  the
   Participant  shall  be  distributed  in the  event  of  the  death  of the
   Participant  while in  the employ  of the  Company or  an Affiliate.   The
   Participant  shall   have  the   right  to   change  the  Beneficiary   or
   Beneficiaries from  time to time; provided, however, that any change shall
   not become  effective until received in writing by the Corporate Secretary 
   of  the Company.   If any designated  Beneficiary survives the Participant
   but dies  before receiving all  of his  benefits hereunder,  any remaining
   benefits  due  him shall  be  distributed  to the  deceased  Beneficiary's
   estate. If there  is no effective Beneficiary  designation on file  at the
   time of  the  Participant's death,  or  if the  designated Beneficiary  or
   Beneficiaries have  all predeceased such Participant,  the payment  of any
   remaining benefits shall be made to the Participant's estate.

         9.    Limitation of Rights.   Nothing in this Agreement  or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee; or

         (b)   give the Participant or  any other person any  interest in any
   fund or in any specified asset or assets of the Company or any Affiliate.

         10.   Prerequisites to Benefits.   Neither the Participant, nor  any
   person claiming  through the Participant, shall have any right or interest
   in  the  Restricted Stock  awarded  hereunder,  unless and  until  all the
   terms,  conditions and  provisions of  this Agreement  and the  Plan which
   affect the Participant or such other person  shall have been complied with
   as specified herein.

         11.   Rights  as a  Stockholder.   Subject  to  the limitations  and
   restrictions contained  herein,  the  Participant (or  Beneficiary)  shall
   have all rights as a  stockholder with respect to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         12.   Successors and Assigns.   This Agreement shall bind  and inure
   to the benefit  of and be enforceable by the  Participant, the Company and
   their    respective   successors    and   assigns    (including   personal
   representatives, heirs and legatees).

         13.   Governing  Law.    This   Agreement  shall  be  governed   by,
   construed and  enforced  in accordance  with  the  laws of  the  State  of
   Delaware.

         14.   Gender and Number.  Whenever the  context requires or permits,
   the gender and number of words shall be interchangeable.

         15.   Change of  Control.   For  the  purpose of  this Agreement,  a
   "Change  of Control"  shall mean  any "Person",  as such  term is  used in
   Section  13(d) and  14(d)  of  the Securities  Exchange  Act of  1934,  as
   amended (the  "Exchange  Act") (other  than  (i) the  Executive, (ii)  the
   Company  or any of its subsidiaries or Affiliates (as that term is defined
   in the Exchange  Act), (iii) any  Person subject, as  of the date  of this
   Agreement or at  any prior time, to  the reporting or  filing requirements
   of  Section 13(d) of the  Exchange Act  with respect to  the securities of
   the Company or any Affiliate, (iv) any trustee  or other fiduciary holding
   or owning  securities under an  employee benefit plan of  the Company, (v)
   any underwriter temporarily  holding or owning securities of  the Company,
   or  (vi)  any corporation  owned  directly  or indirectly  by  the current
   stockholders of  the Company in substantially the same proportion as their
   then ownership of stock  of the Company) becomes,  after the date of  this
   Agreement,  the "beneficial  owner" (as  defined in  Rule 13d-3  under the
   Exchange  Act),  directly or  indirectly,  of  securities of  the  Company
   representing forty percent (40%) or  more of the combined voting  power of
   the Company's then outstanding securities.

   This  Agreement is executed  and delivered, in  duplicate, pursuant to the
   Plan, the provisions of which are incorporated herein by reference. 


   Dated:                   , 1997

   ATTEST:                                   READING & BATES CORPORATION


   ___________________________            By:
   __________________________________
   Secretary
                                          Its:  Chairman and Chief
                                                Executive Officer

   ___________________________
   (Signature, J.W. McLean)


                                                                Exhibit 10.51

   READING & BATES CORPORATION
   RESTRICTED STOCK AWARD AGREEMENT


         THIS  AGREEMENT is made as  of the  date set forth  on the signature
   page hereof, between Reading  & Bates Corporation, a Delaware  corporation
   (the "Company"), and  Robert  L. Sandmeyer (the "Participant").  Except as
   defined herein,  capitalized terms shall have the same meaning ascribed to
   them under  the 1996  Director Restricted  Stock Award Plan  of Reading  &
   Bates  Corporation, as from  time to  time amended (the  "Plan").   To the
   extent that  any provision of  this Agreement  conflicts with  the express
   terms of the Plan, it is hereby acknowledged and agreed  that the terms of
   the Plan  shall control and,  if necessary,  the applicable  provisions of
   this  Agreement shall  be hereby  deemed amended  so as  to carry  out the
   purpose and intent of the Plan.

         1.    Award.  In order  to encourage the Participant's  contribution
   to  the successful  performance of  the Company,  in consideration  of the
   covenants and  promises of the  Participant herein contained, and  subject
   to shareholder  approval of  the Plan,  the Company hereby  awards to  the
   Participant  as of   December 3, 1996  (the "Date  of Grant"), a  total of
   9,000  shares of  Common  Stock,  pursuant to  the  Plan,  subject to  the
   conditions  and  restrictions  set  forth  below  and  in  the  Plan  (the
   "Restricted Stock").

         2.    Restrictions on  Transfer.   The  shares  of Restricted  Stock
   granted   hereunder  to  the  Participant  may   not  be  sold,  assigned,
   transferred, pledged  or otherwise encumbered from the Date of Grant until
   said shares  shall have become vested in the Participant (and restrictions
   terminated thereon)  in accordance with the provisions of this Paragraph 2
   or as  otherwise provided  in  Paragraph 6  below.   (The  period of  time
   between the Date of  Grant and the vesting  of shares of Restricted  Stock
   shall be referred to herein as the "Restricted Period"  as to those shares
   of stock.)   The Participant shall become vested as  to 33- % of the total
   number of shares of  Restricted Stock awarded hereunder on each of January
   1,  1998, January  1, 1999 and  January 1,   2000; provided, however, that
   the Participant shall  not be vested in  shares of Restricted Stock  which
   would be vested  as of a given  date if the  Participant has not  remained
   continuously a member of  the Board of Directors  of the Company from  the
   date  of  this  Agreement through  such  date  (other  than  by reason  of
   Participant's death,  disability, retirement after the age of 65 or Change
   of Control of the  Company, as defined in  Paragraph 15 hereof), in  which
   event all  of  the Participant's  rights  to such  Restricted Stock  shall
   terminate  without any payment  of consideration by  the Company, and such
   Restricted  Stock shall be  returned to  the Company  and cancelled.   The
   Restricted Period  shall be subject to an earlier termination with respect
   to all  or  a portion  of  the Restricted  Stock  in accordance  with  the
   provisions of Paragraph 6 below.

         3.    No Code  Section 83(b)  Election.   The Participant shall  not
   make  an  election, under  Code  Section 83(b),  to  include an  amount in
   income in respect of this Award of Restricted Stock.

         4.    Sale  of Restricted  Stock.   The Participant  shall  not sell
   Restricted Stock  except pursuant to  an effective  registration statement
   under  the  Securities Act  of  1933  or  pursuant  to an  exemption  from
   registration under such act.

         5.    Escrow  of Certificates.  The certificates representing shares
   of Restricted Stock shall be registered in the name  of the Participant on
   the  Date of Grant and deposited, together  with a stock power endorsed by 
   the  Participant in  blank, with  the Corporate  Secretary of  the Company
   during the Restricted  Period.  Each such certificate  shall bear a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions and restrictions described  in the Plan and  in this Agreement.
   Subject to  the provisions of Paragraph  7 below, upon termination  of the
   Restricted  Period  with  respect  to   shares  of  Restricted  Stock,   a
   certificate   representing  such   shares  shall   be  delivered   to  the
   Participant as promptly as practicable following such termination.

         6.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)   a  Change of  Control  that  occurs  after the  Date  of
                     Grant; or

               (ii)  the  termination  of  the Participant's  service  due to
                     death or disability, or  retirement at age 65 or older;

   the Restricted Period set forth in  Paragraph 2 above shall terminate  and
   the Participant's right to  such Restricted Stock shall  become vested and
   nonforfeitable and all restrictions thereon will terminate.  

         (b)   If  the   Participant's  service  with  the  Company  and  all
   Affiliates  terminate prior  to  the occurrence  of  a date  set forth  in
   Paragraph  (a)(i) above  for any  reason other  than death,  disability or
   retirement  described  in Paragraph  (a)(ii)  above,  then all  Restricted
   Stock  awarded to  the  Participant  that  has  not previously  vested  in
   accordance  with Paragraph  2  above  shall  be  forfeited  whereupon  the
   Corporate  Secretary   shall  deliver  to  the  Company  the  certificates
   representing such  shares and  the stock  power previously  deposited with
   the Corporate Secretary pursuant to Paragraph 5 above.

         7.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted  Stock shall be  delivered to the Participant  by the
   Company  upon   the  expiration  of  the   Restricted  Period  unless  the
   Participant  (or Beneficiary, as  defined in Paragraph  8 below) remits to
   the  Company  the amount  of  all  federal, state  and  other governmental
   withholding tax  requirements imposed upon the Company with respect to the
   issuance of  such shares or  unless provisions to so  pay such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject to  Committee  approval,  the  Participant  (or  Beneficiary)  may
   elect, at least thirty  (30) days (or such  other period as the  Committee
   may prescribe) prior to  the vesting of such Restricted Stock,  to satisfy
   such withholding  requirements  by  having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on  the date such shares became vested equal to
   the  amount necessary to  satisfy such withholding  tax requirements.  Any
   election   to  have  shares  withheld   to  satisfy  the  withholding  tax
   requirements  shall  be made  at  such  time and  in  such  manner as  the
   Committee shall prescribe.  Appropriate  withholding may also be  deducted
   from the  payment of any  cash dividends  with respect  to such shares  of
   Restricted Stock  during the Restricted Period, to the extent necessary to
   satisfy any withholding tax requirements applicable thereto.

         8.    Beneficiary Designations.   The  Participant  shall file  with
   the  Corporate  Secretary of  the  Company a  designation of  one  or more
   beneficiaries (each  a  "Beneficiary") to  whom shares  otherwise due  the
   Participant  shall  be  distributed  in the  event  of  the  death  of the
   Participant  while in  the employ  of the  Company or  an Affiliate.   The
   Participant  shall   have  the   right  to   change  the  Beneficiary   or
   Beneficiaries from  time to time; provided, however, that any change shall
   not become  effective until received in writing by the Corporate Secretary 
   of  the Company.   If any designated  Beneficiary survives the Participant
   but dies  before receiving all  of his  benefits hereunder,  any remaining
   benefits  due  him shall  be  distributed  to the  deceased  Beneficiary's
   estate. If there  is no effective Beneficiary  designation on file  at the
   time of  the  Participant's death,  or  if the  designated Beneficiary  or
   Beneficiaries have  all predeceased such Participant,  the payment  of any
   remaining benefits shall be made to the Participant's estate.

         9.    Limitation of Rights.   Nothing in this Agreement  or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee; or

         (b)   give the Participant or  any other person any  interest in any
   fund or in any specified asset or assets of the Company or any Affiliate.

         10.   Prerequisites to Benefits.   Neither the Participant, nor  any
   person claiming  through the Participant, shall have any right or interest
   in  the  Restricted Stock  awarded  hereunder,  unless and  until  all the
   terms,  conditions and  provisions of  this Agreement  and the  Plan which
   affect the Participant or such other person  shall have been complied with
   as specified herein.

         11.   Rights  as a  Stockholder.   Subject  to  the limitations  and
   restrictions contained  herein,  the  Participant (or  Beneficiary)  shall
   have all rights as a  stockholder with respect to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         12.   Successors and Assigns.   This Agreement shall bind  and inure
   to the benefit  of and be enforceable by the  Participant, the Company and
   their    respective   successors    and   assigns    (including   personal
   representatives, heirs and legatees).

         13.   Governing  Law.    This   Agreement  shall  be  governed   by,
   construed and  enforced  in accordance  with  the  laws of  the  State  of
   Delaware.

         14.   Gender and Number.  Whenever the  context requires or permits,
   the gender and number of words shall be interchangeable.

         15.   Change of  Control.   For  the  purpose of  this Agreement,  a
   "Change  of Control"  shall mean  any "Person",  as such  term is  used in
   Section  13(d) and  14(d)  of  the Securities  Exchange  Act of  1934,  as
   amended (the  "Exchange  Act") (other  than  (i) the  Executive, (ii)  the
   Company  or any of its subsidiaries or Affiliates (as that term is defined
   in the Exchange  Act), (iii) any  Person subject, as  of the date  of this
   Agreement or at  any prior time, to  the reporting or  filing requirements
   of  Section 13(d) of the  Exchange Act  with respect to  the securities of
   the Company or any Affiliate, (iv) any trustee  or other fiduciary holding
   or owning  securities under an  employee benefit plan of  the Company, (v)
   any underwriter temporarily  holding or owning securities of  the Company,
   or  (vi)  any corporation  owned  directly  or indirectly  by  the current
   stockholders of  the Company in substantially the same proportion as their
   then ownership of stock  of the Company) becomes,  after the date of  this
   Agreement,  the "beneficial  owner" (as  defined in  Rule 13d-3  under the
   Exchange  Act),  directly or  indirectly,  of  securities of  the  Company
   representing forty percent (40%) or  more of the combined voting  power of
   the Company's then outstanding securities.

   This  Agreement is executed  and delivered, in  duplicate, pursuant to the
   Plan, the provisions of which are incorporated herein by reference. 


   Dated:                   , 1997

   ATTEST:                                   READING & BATES CORPORATION


   ___________________________            By:
   __________________________________
   Secretary
                                          Its:  Chairman and Chief Executive
                                                Officer

   ___________________________
   (Signature, Robert  L. Sandmeyer) 


                                                                Exhibit 10.52


                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS  AGREEMENT is  made as of  the date set  forth on the signature
   page hereof,  between Reading & Bates  Corporation, a Delaware corporation
   (the "Company"), and  Paul B. Loyd,  Jr. (the "Participant").   Except  as
   defined herein,  capitalized terms shall have the same meaning ascribed to
   them  under  the  1995  Long  Term  Incentive  Plan  of  Reading  &  Bates
   Corporation,  as from time to  time amended,  a copy of  which is attached
   hereto  and made  a part  hereof for  all purposes  (the "Plan").   To the
   extent that  any provision of  this Agreement  conflicts with  the express
   terms of the Plan, it is hereby  acknowledged and agreed that the terms of
   the Plan  shall control and,  if necessary,  the applicable  provisions of
   this  Agreement shall  be hereby  deemed amended  so as  to carry  out the
   purpose and intent of the Plan.

         1.    Definitions.   As used herein, the terms set forth below shall
   have the following respective meanings:

         (a)   "Cause" means Cause as defined in the Employment Agreement.

         (b)   "Change  of Control" means  a Change of  Control as defined in
   the Employment Agreement.

         (c)   "Disability"  means  Disability as  defined in  the Employment
   Agreement.

         (d)   "Employment   Agreement"   means   that   certain   Employment
   Agreement dated  as of  January 1,  1992 between the  Participant and  the
   Company, as amended from time to time.

         2.    Award.  In order  to encourage the Participant's  contribution
   to  the successful  performance of  the Company,  in consideration  of the
   covenants and promises  of the Participant herein  contained, the  Company
   hereby  awards to the  Participant as  of December 3,  1996 (the  "Date of
   Grant"), a total  of 75,000 shares of Common Stock,  pursuant to the Plan,
   subject to the  conditions and  restrictions set  forth below  and in  the
   Plan (the "Restricted Stock").

         3.    Restrictions on  Transfer.   The  shares  of Restricted  Stock
   granted  hereunder   to  the  Participant  may   not  be  sold,  assigned,
   transferred, pledged  or otherwise encumbered from the Date of Grant until
   said shares  shall have become vested in the Participant (and restrictions
   terminated thereon)  in accordance with the provisions of this Paragraph 3
   or  as otherwise  provided in  Paragraph  7 below.   (The  period of  time
   between the Date of  Grant and the vesting  of shares of Restricted  Stock
   shall be referred to herein  as the "Restricted Period" as to those shares
   of  stock.)     The Participant  shall  become vested  as  to 100%  of the
   Restricted  Stock  on  December  3,  1999;  provided,  however,  that  the
   Participant shall not be vested  in shares of Restricted Stock which would
   be vested as of a given date  if the Participant has not been continuously
   employed  by  the  Company  and  its  Affiliates from  the  date  of  this
   Agreement through  such  date, in  which  event all  of the  Participant's
   rights to  such Restricted Stock  shall terminate  without any  payment of
   consideration by  the Company, and such Restricted Stock shall be returned
   to  the Company and cancelled.  The  Restricted Period shall be subject to
   an  earlier termination with respect to all or a portion of the Restricted
   Stock in accordance with the provisions of Paragraph 7 below.

         4.    No Code  Section 83(b) Election.   The  Participant shall  not
   make  an  election, under  Code  Section 83(b),  to include  an  amount in
   income in respect of this Award of Restricted Stock. 

         5.    Sale  of Restricted  Stock.   The  Participant shall  not sell
   Restricted Stock  except pursuant to  an effective  registration statement
   under  the  Securities Act  of  1933  or  pursuant  to an  exemption  from
   registration under such act.

         6.    Escrow  of Certificates.  The certificates representing shares
   of Restricted Stock shall be  registered in the name of the Participant on
   the Date of  Grant and deposited, together with a  stock power endorsed by
   the  Participant in  blank, with  the Corporate  Secretary of  the Company
   during the Restricted Period.  Each  such certificate shall bear a  legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions and restrictions described  in the Plan and  in this Agreement.
   Subject  to the provisions  of Paragraph 8 below,  upon termination of the
   Restricted   Period  with  respect  to   shares  of  Restricted  Stock,  a
   certificate   representing  such   shares  shall   be  delivered   to  the
   Participant as promptly as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)  a Change of Control that occurs after  the Date of Grant;
                    or

               (ii) the termination of the Participant's employment  due  to
                    (A) death  or Disability, or (B) involuntary termination
                    by the Company and all Affiliates for any  reason  other
                    than Cause, or (C) voluntary resignation by the Partici-
                    pant upon the continued failure by the Company  and  all
                    Affiliates to comply with the  provisions of the Employ-
                    ment Agreement pertaining to the Participant's  compens-
                    ation or  his  position,  duties or authority;

   the  Restricted Period set forth in  Paragraph 3 above shall terminate and
   the Participant's right to  such Restricted Stock shall  become vested and
   nonforfeitable and all restrictions thereon will terminate. 

         (b)   If  the  Participant's employment  with  the  Company and  all
   Affiliates  terminate  prior to  the occurrence  of  a date  set  forth in
   Paragraph  (a)(i)  above  for  any reason  other  than  death, disability,
   involuntary  termination or  resignation  described in  Paragraph  (a)(ii)
   above, then all Restricted Stock awarded  to the Participant that has  not
   previously vested  in accordance with Paragraph 3 above shall be forfeited
   whereupon  the  Corporate  Secretary  shall deliver  to  the  Company  the
   certificates  representing  such shares  and  the  stock power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of  Restricted Stock shall be  delivered to the Participant  by the
   Company  upon  the   expiration  of  the  Restricted   Period  unless  the
   Participant  (or Beneficiary, as  defined in Paragraph  9 below) remits to
   the  Company  the amount  of  all  federal, state  and  other governmental
   withholding tax  requirements imposed upon the Company with respect to the
   issuance of such shares  or unless provisions to  so pay such  withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject to  Committee  approval,  the  Participant  (or  Beneficiary)  may
   elect, at least thirty  (30) days (or such  other period as the  Committee
   may prescribe) prior to the  vesting of such Restricted Stock,  to satisfy
   such withholding  requirements  by  having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a Fair Market Value on the date such shares became  vested equal to
   the  amount necessary to  satisfy such withholding  tax requirements.  Any
   election  to   have  shares  withheld  to   satisfy  the  withholding  tax 
   requirements  shall  be made  at  such  time and  in  such  manner as  the
   Committee  shall prescribe.  Appropriate withholding  may also be deducted
   from  the payment of  any cash  dividends with respect  to such  shares of
   Restricted Stock  during the Restricted Period, to the extent necessary to
   satisfy any withholding tax requirements applicable thereto.

         9.    Beneficiary Designations.   The  Participant  shall file  with
   the Corporate  Secretary  of the  Company  a designation  of one  or  more
   beneficiaries  (each a  "Beneficiary")  to whom  shares otherwise  due the
   Participant shall  be  distributed  in  the event  of  the  death  of  the
   Participant  while in  the employ  of the  Company or  an Affiliate.   The
   Participant  shall   have  the   right  to   change  the  Beneficiary   or
   Beneficiaries from  time to time; provided, however, that any change shall
   not become  effective until received in writing by the Corporate Secretary
   of  the Company.   If any designated  Beneficiary survives the Participant
   but dies  before receiving all  of his  benefits hereunder,  any remaining
   benefits  due  him  shall be  distributed  to  the deceased  Beneficiary's
   estate. If  there is no  effective Beneficiary designation on  file at the
   time of  the  Participant's death,  or  if the  designated Beneficiary  or
   Beneficiaries have all  predeceased such Participant, the  payment of  any
   remaining benefits shall be made to the Participant's estate.

         10.   Limitation of Rights.   Nothing in this Agreement  or the Plan
   shall be construed to:

         (a)   give  the  Participant any  right  to be  awarded  any further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give the Participant or  any other person any  interest in any
   fund or in any specified asset or assets of the Company or  any Affiliate;
   or

         (c)   confer  upon the  Participant  the right  to  continue in  the
   employment or  service  of the  Company or  any Affiliate,  or affect  the
   right of  the Company  or  any Affiliate  to terminate  the employment  or
   service of the Participant at any time or for any reason.

         11.   Prerequisites to Benefits.   Neither the Participant, nor  any
   person claiming  through the Participant, shall have any right or interest
   in  the  Restricted Stock  awarded  hereunder,  unless and  until  all the
   terms,  conditions and  provisions of  this Agreement  and the  Plan which
   affect the Participant  or such other person shall have been complied with
   as specified herein.

         12.   Rights  as a  Stockholder.   Subject  to  the limitations  and
   restrictions  contained herein,  the  Participant (or  Beneficiary)  shall
   have all rights as a stockholder with respect to  the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         13.   Successors and Assigns.   This Agreement shall  bind and inure
   to  the benefit of and be enforceable  by the Participant, the Company and
   their   respective    successors   and    assigns   (including    personal
   representatives, heirs and legatees).

         14.   Governing  Law.    This   Agreement  shall  be  governed   by,
   construed  and  enforced  in accordance  with  the  laws of  the  State of
   Delaware.

         15.   Gender  and Number.  Whenever the context requires or permits,
   the gender and number of words shall be interchangeable.

         This Agreement is executed and delivered, in  duplicate, pursuant to
   the Plan, the provisions of which are incorporated herein by reference. 



         Dated:                   , 1997

   ATTEST:                                   READING & BATES CORPORATION


                                             By:               
                                      
   Secretary
                                             Its:
   ___________________________

   __________________________________
   Paul B. Loyd, Jr.


                                                                 Exhibit 10.53

                          READING & BATES CORPORATION

                             STOCK OPTION AGREEMENT



               This Stock  Option Agreement ("Agreement")  between Reading  &
   Bates Corporation,  a Delaware corporation  ("Company") and  Tim W.  Nagle
   ("Optionee"),

                                  WITNESSETH:

               WHEREAS,  the  Compensation  Committee  which  administers the
   Reading &  Bates Corporation  1995 Long-Term  Incentive Plan ("Plan")  has
   selected  the Optionee, who  is the Executive  Vice President, Finance and
   Administration  of the  Company,  to receive  a nonqualified  stock option
   under  the terms of the Plan as  an incentive to the Optionee to remain in
   the  employ of  the  Company and  contribute  to  the performance  of  the
   Company, on the terms and subject to the conditions provided herein;

               NOW  THEREFORE, for and in consideration of these premises, it
   is hereby agreed as follows:

               1.    The Option is issued  in accordance with and subject  to
   all   of  the   terms,  conditions   and  provisions   of  the   Plan  and
   administrative  interpretations   thereunder,  if  any,  which  have  been
   adopted  by  the  Committee  and  are  in  effect  on  the   date  hereof.
   Capitalized  terms used  but not  defined herein  shall have  the meanings
   assigned to such terms in the Plan.

               2.    On  the terms  and subject  to the  conditions contained
   herein, the Committee  hereby grants to the Optionee an  option for a term
   of ten  years ending  on December  3, 2006  ("Option Period")  to purchase
   from the  Company 150,000 shares ("Option Shares") of the Company's Common
   Stock, at a price equal to $28.00 per share.

               3.    This Option  shall not be  exercisable, except  upon the
   death  or disability  of the  Optionee, until  after 6  months immediately
   following  the date  this  Option  is  granted,  and thereafter  shall  be
   exercisable for Common Stock as follows:
                     (a)   After  one  year following  the effective  date of
   grant,  this Option  shall be exercisable  for any number  of shares up to
   and including, but not  in excess of, 33-1/3%  of the aggregate number  of
   shares subject to this Option; and

                     (b)   After two  years following  the effective date  of
   grant,  this Option shall be  exercisable for  any number of  shares up to
   and including, but not  in excess of, 66-2/3%  of the aggregate number  of
   shares subject to this Option; and

                     (c)   After three years following the  effective date of
   grant,  this Option  shall  be exercisable  for  any number  of  shares of
   Common  Stock up  to and  including, but  not in  excess of,  100%  of the
   aggregate number of shares subject to this Option; 

   provided the  number of shares as to which this Option becomes exercisable
   shall, in  each  case, be  reduced  by the  number  of shares  theretofore
   purchased pursuant to the terms hereof.

               4.    The option  herein  granted  may  be  exercised  by  the
   Optionee by giving written notice to the Secretary of the Company  setting
   forth the  number of Option Shares with respect to  which the option is to
   be exercised, accompanied  by payment for the  shares to be  purchased and
   any  appropriate withholding taxes,  and specifying  the address  to which
   the certificate  for such shares  is to  be mailed.   Payment shall be  by
   means of  cash, certified check, bank draft  or postal money order payable
   to the order of the Company.   As promptly as practicable after receipt of
   such  written notification and  payment, the Company  shall deliver to the
   Optionee  certificates for  the number  of Option  Shares with  respect to
   which such option has been so exercised.

               5.    Subject to  approval of the  Committee, which  shall not
   be unreasonably  withheld, the Optionee may pay for any Option Shares with
   respect to which  the option herein granted  is exercised by  tendering to
   the  Company other shares of  Common Stock at the time  of the exercise or
   partial exercise hereof.  The certificates representing  such other shares
   of Common Stock must  be accompanied by a  stock power duly executed  with
   signature  guaranteed.  The value of the Common Stock so tendered shall be
   its Fair Market Value.

               6.    If  the  Optionee's  employment  with  the   Company  is
   terminated  during  the Option  Period  by  the Company  for  "Cause" [(as
   defined  in that  certain  Employment Agreement  between  the Company  and
   Optionee  dated  as of  November  1,  1991, as  amended,  (the "Employment
   Agreement")] or by the  Executive for any reason  other than (i) death  or
   disability or  (ii) "Good  Reason" or  during a "Window  Period" (in  each
   case as "Good  Reason" and "Window Period"  are defined in the  Employment
   Agreement)  whether during or  after the Employment  Period (as defined in
   the  Employment Agreement),  then (a)  the options  herein granted  to him
   that are  not exercisable on  the date  of his  termination of  employment
   shall thereupon terminate, and (b)  any options herein granted to him that
   are  exercisable on  the date  of  his termination  of  employment may  be
   exercised  by the Optionee  during a three-month  period beginning on such
   date, unless the Option Period shall expire prior to  such date, and shall
   thereafter terminate.

               7.    If  the  Optionee's  employment  with  the  Company   is
   terminated  (whether during  or after  the Employment  Period, as  defined
   above) (i)  by the Optionee  for Good  Reason or  during a Window  Period;
   (ii) for any reason  by the Company other than for  "Cause" (as defined in
   the Employment Agreement)  or (iii) by reason of death or disability, then
   (a) the  Options granted to  him that are not  exercisable on the  date of
   such  termination of  employment shall be  thereupon be fully exercisable,
   and  (b) all  Options  then  held  by  the Optionee,  whether  theretofore
   exercisable or  exercisable by reason of the termination of employment may
   be  exercised by  the  Optionee during  the  full remaining  term of  this
   Option; provided,  however,  that  all  Options  granted  hereunder  shall
   expire and not be  exercisable on the first anniversary of  the Optionee's
   death.

               8.    The option herein granted  shall not be transferable  by
   the  Optionee  otherwise than  as  permitted by  Section  13 of  the Plan.
   During  the lifetime  of the  Optionee, such  option shall  be exercisable
   only by him.  No transfer of the option herein  granted shall be effective
   to bind  the Company  unless the  Company shall  have been furnished  with
   written notice thereof and  a copy of such  evidence as the Committee  may
   deem  necessary  to  establish  the  validity  of  the  transfer  and  the
   acceptance  by the transferee  or transferees of  the terms and conditions
   hereof.

               9.    The Optionee  shall have no rights as a stockholder with
   respect to any Option Shares  until the date of issuance of  a certificate
   for Option  Shares purchased pursuant to this Agreement.  Until such time,
   the Optionee shall not be entitled to dividends or to vote at  meetings of
   the stockholders of the Company.

               10.   The  Company may  make such  provisions as  it may  deem
   appropriate  for  the withholding  of  any  taxes which  it  determines is
   required in connection with the option  herein granted.  The Optionee  may
   pay all  or any  portion  of the  taxes  required to  be withheld  by  the
   Company or paid by the Optionee in connection with  the exercise of all or
   any  portion of the option herein granted  by electing to have the Company
   withhold shares  of Common Stock, or by delivering previously owned shares
   of Common Stock, having a  Fair Market Value equal to the  amount required
   to be  withheld or paid.  The Optionee must make the foregoing election on
   or before the date  that the amount  of tax to  be withheld is  determined
   ("Tax  Date").    Any   such  election  is  irrevocable   and  subject  to
   disapproval by the Committee.   If the Optionee  is subject to the  short-
   swing profits recapture provisions  of Section 16(b) of  the Exchange Act,
   any  such  election   shall  be  subject  to   the  following   additional
   restrictions:

                     (a)   Such election  may not be  made within  six months
   of the  grant of  this  option, provided  that this  limitation shall  not
   apply in the event of death or disability.

                     (b)   Such election must be  made either in an  Election
   Window  (as  hereinafter  defined)  or  at  such  other  time  as  may  be
   consistent with Section 16(b)(3) of the Exchange Act.   Where the Tax Date
   in  respect of  the  exercise of  all or  any  portion of  this Option  is
   deferred  until  after  such  exercise  and  the  Optionee   elects  stock
   withholding, the full amount of  shares of Common Stock will be  issued or
   transferred  to  the  Optionee  upon  exercise  of  this  Option,  but the
   Optionee shall  be unconditionally obligated to tender back to the Company
   on the Tax Date the  number of shares necessary to discharge  with respect
   to such  Option  exercise the  greater  of (i)  the Company's  withholding
   obligation and (ii)  all or any portion of the  holder's federal and state
   tax  obligation attributable to  the Option exercise.   An Election Window
   is  any  period  commencing  on  the  third  business  day  following  the
   Company's release of a quarterly or annual summary statement of  sales and
   earnings and ending on the twelfth business day following such release.
               11.   Upon  the  acquisition of  any  shares  pursuant to  the
   exercise of  the option herein granted, the Optionee  will enter into such
   written representations,  warranties  and agreements  as  the Company  may
   reasonably request in order  to comply with applicable  securities laws or
   with this Agreement.

               12.   The   certificates   representing  the   Option   Shares
   purchased by exercise of an option will  be stamped or otherwise imprinted
   with a legend in such form as the Company or  its counsel may require with
   respect to any applicable restrictions on sale or transfer, and  the stock
   transfer records of the  Company will reflect stop-transfer  instructions,
   as appropriate, with respect to such shares.

               13.   Unless   otherwise   provided   herein,   every   notice
   hereunder  shall  be  in  writing and  shall  be  given  by registered  or
   certified mail.   All  notices  of the  exercise by  the  Optionee of  any
   option  hereunder  shall  be  directed  to Reading  &  Bates  Corporation,
   Attention:   Secretary,  at the  Company's  current address.   Any  notice
   given by the  Company to the  Optionee directed to  him at his  address on
   file with  the Company shall  be effective  to bind  any other person  who
   shall acquire rights hereunder.  The Company shall be under no  obligation
   whatsoever  to  advise   the  Optionee  of  the  existence,   maturity  or
   termination of  any of the  Optionee's rights  hereunder and  the Optionee
   shall  be deemed to  have familiarized himself  with all matters contained
   herein and in  the Plan which may  affect any of the Optionee's  rights or
   privileges hereunder.

               14.   Whenever  the  term  "Optionee"  is  used  herein  under
   circumstances applicable  to  any other  person  or persons  to whom  this
   award,  in   accordance  with  the  provisions  of  Paragraph  8,  may  be
   transferred,  the word "Optionee"  shall be deemed  to include such person
   or persons.   References to the  masculine gender herein also  include the
   feminine gender for all purposes.

               15.   Notwithstanding any of  the other provisions hereof, the
   Optionee agrees that he will  not exercise the option herein granted,  and
   that the  Company will not  be obligated to issue  any shares  pursuant to
   this Agreement,  if the exercise  of the  option or  the issuance of  such
   shares of Common Stock would constitute a violation by  the Optionee or by
   the Company of any provision  of any law or regulation of any governmental
   authority or any national securities exchange.
               16.   The option to purchase  Option Shares evidenced by  this
   Agreement  shall be  fully and  immediately exercisable  upon a  Change of
   Control of the Company as defined in the Employment Agreement. 

               17.   This Agreement is subject  to the Plan, a  copy of which
   has been  provided the Optionee  and for  which the  Optionee acknowledges
   receipt.   The terms and provisions of  the Plan (including any subsequent
   amendments  thereto) are incorporated  herein by reference.   In the event
   of a conflict between  any term or provision  contained herein and a  term
   or  provision of  the Plan,   the applicable  terms and  provisions of the
   Plan  will  govern and  prevail.    All  definitions of  words  and  terms
   contained in the Plan shall be applicable to this Agreement.

               18.   In the event  of a  corporate merger  or other  business
   combination  in  which  the  Company  is  not  the  surviving  entity, the
   economic equivalent  number of the  voting shares of  common stock of,  or
   participating  interests in, the  surviving entity, based  on the terms of
   such  merger or other  business combination, shall  be substituted for the
   Option  Shares hereunder,  and the  price per share  set out  in Section 2
   hereof  shall  be  adjusted to  reflect  substantially  the  same economic
   equivalent  value of the  Option Shares to  the Optionee immediately prior
   to any such merger or other business combination.

               IN WITNESS WHEREOF,  this Agreement is executed this       day
   of                , 199  , effective as of the 3rd day of December, 1996.

                                       READING & BATES CORPORATION



                                       By:_______________________________


                                       OPTIONEE


                                       ___________________________________
                                       Tim W. Nagle


                                                                Exhibit 10.54

                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS AGREEMENT  is made as  of the date  set forth on the  signature
   page hereof, between  Reading & Bates Corporation, a  Delaware corporation
   (the "Company"),  and Charles  R. Ofner  (the "Participant").   Except  as
   defined herein, capitalized terms shall have the same meaning  ascribed to
   them  under  the  1995  Long  Term  Incentive  Plan  of  Reading  &  Bates
   Corporation, as from time  to time  amended (the "Plan").   To the  extent
   that any provision  of this Agreement conflicts with  the express terms of
   the Plan,  it is hereby acknowledged and agreed that the terms of the Plan
   shall  control  and,  if  necessary,  the  applicable  provisions of  this
   Agreement shall be  hereby deemed amended so  as to carry out  the purpose
   and intent of the Plan.

         1.    Definitions.  As used herein, the terms set forth  below shall
   have the following respective meanings:

         (a)   "Cause" means Cause as defined in the Employment Agreement.

         (b)   "Change  of Control" means  a Change of Control  as defined in
   the Employment Agreement.

         (c)   "Disability"  means Disability  as defined  in  the Employment
   Agreement.

         (d)   "Employment   Agreement"   means   that   certain   Employment
   Agreement  dated as of  November 1, 1991  between the  Participant and the
   Company, as amended from time to time.

         2.    Award.  In  order to encourage the  Participant's contribution
   to the  successful performance  of the  Company, in  consideration of  the
   covenants  and promises  of the Participant  herein contained, the Company
   hereby awards  to the  Participant as of  December 3,  1996 (the "Date  of
   Grant"),  a total of  9000 shares of Common  Stock, pursuant  to the Plan,
   subject  to the  conditions and  restrictions set  forth below and  in the
   Plan (the "Restricted Stock").

         3.    Restrictions  on Transfer.   The  shares  of Restricted  Stock
   granted  hereunder  to  the  Participant   may  not  be  sold,   assigned,
   transferred, pledged or otherwise encumbered from the Date of  Grant until
   said shares shall have become vested in the Participant  (and restrictions
   terminated thereon) in accordance with the provisions of this  Paragraph 3
   or  as otherwise  provided  in Paragraph  7 below.    (The period  of time
   between the Date  of Grant and the  vesting of shares of  Restricted Stock
   shall be referred to herein as the "Restricted  Period" as to those shares
   of stock.)    The Participant shall become vested as  to 100% of the total
   number of  shares of  Restricted Stock  awarded hereunder  on December  3,
   1999; provided,  however,  that the  Participant shall  not be  vested  in
   shares of  Restricted Stock which  would be vested  as of a given  date if
   the Participant has not been  continuously employed by the Company and its
   Affiliates from  the date of  this Agreement through  such date, in  which
   event all  of  the Participant's  rights to  such Restricted  Stock  shall
   terminate  without any payment  of consideration by the  Company, and such
   Restricted  Stock shall be  returned to  the Company  and cancelled.   The
   Restricted Period shall be subject to an earlier termination  with respect
   to  all  or a  portion  of the  Restricted  Stock in  accordance  with the
   provisions of Paragraph 7 below.

         4.    No Code  Section 83(b)  Election.   The Participant shall  not
   make  an election,  under Code  Section  83(b), to  include  an amount  in
   income in respect of this Award of Restricted Stock.

         5.    Sale  of Restricted  Stock.   The Participant  shall  not sell
   Restricted Stock  except pursuant to  an effective registration  statement
   under  the  Securities Act  of  1933  or  pursuant to  an  exemption  from
   registration under such act.

         6.    Escrow of Certificates.  The  certificates representing shares
   of Restricted Stock shall be registered in the name of the Participant  on
   the Date of Grant  and deposited, together with a stock  power endorsed by
   the Participant  in blank,  with the  Corporate Secretary  of the  Company
   during  the Restricted Period.  Each  such certificate shall bear a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions  and restrictions described in  the Plan and in this Agreement.
   Subject to the  provisions of Paragraph 8  below, upon termination  of the
   Restricted  Period  with  respect  to   shares  of  Restricted  Stock,   a
   certificate  representing   such  shares   shall  be   delivered  to   the
   Participant as promptly as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)   a  Change of  Control  that  occurs  after the  Date  of
                     Grant; or

               (ii)  the termination of the  Participant's employment due  to
                     (A) death or Disability, or (B) involuntary  termination
                     by the Company and  all Affiliates for any  reason other
                     than Cause,  (C) retirement  at age  60 or  over or  (D)
                     voluntary  resignation  by  the   Participant  upon  the
                     continued failure by  the Company and all  Affiliates to
                     comply with the  provisions of the Employment  Agreement
                     pertaining  to  the Participant's  compensation  or  his
                     position, duties or authority;

   the  Restricted Period set forth in Paragraph  3 above shall terminate and
   the  Participant's right to such  Restricted Stock shall become vested and
   nonforfeitable and all restrictions thereon will terminate.  

         (b)   If  the Participant's  employment  with  the Company  and  all
   Affiliates  terminate  prior to  the  occurrence of  a  date set  forth in
   Paragraph  (a)(i)  above  for any  reason  other  than  death, disability,
   involuntary termination  or  resignation  described in  Paragraph  (a)(ii)
   above,  then all Restricted Stock awarded  to the Participant that has not
   previously vested in accordance with Paragraph 3 above shall  be forfeited
   whereupon  the  Corporate  Secretary  shall  deliver  to  the  Company the
   certificates  representing such  shares  and  the stock  power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of Restricted Stock  shall be delivered  to the Participant by  the
   Company  upon  the   expiration  of  the  Restricted  Period   unless  the
   Participant  (or Beneficiary, as  defined in Paragraph 9  below) remits to
   the  Company  the  amount of  all  federal, state  and  other governmental
   withholding tax requirements imposed upon the Company with respect  to the
   issuance of such  shares or unless  provisions to so pay  such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject  to  Committee  approval, the  Participant  (or  Beneficiary)  may
   elect, at least  thirty (30) days (or  such other period as  the Committee
   may prescribe) prior to the  vesting of such Restricted Stock, to  satisfy
   such  withholding  requirements  by having  the  Company  withhold  shares 
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary)
   having a  Fair Market Value on the date such shares became vested equal to
   the  amount necessary to  satisfy such withholding tax  requirements.  Any
   election   to  have  shares  withheld  to   satisfy  the  withholding  tax
   requirements  shall be  made  at  such time  and  in  such manner  as  the
   Committee  shall prescribe.  Appropriate  withholding may also be deducted
   from  the payment of  any cash  dividends with  respect to such  shares of
   Restricted Stock during the Restricted Period, to the extent  necessary to
   satisfy any withholding tax requirements applicable thereto.

         9.    Beneficiary  Designations.   The Participant  shall file  with
   the  Corporate Secretary  of the  Company  a designation  of  one or  more
   beneficiaries  (each a  "Beneficiary") to  whom shares  otherwise  due the
   Participant shall  be  distributed  in  the  event of  the  death  of  the
   Participant while  in the  employ of  the Company  or an  Affiliate.   The
   Participant   shall  have  the   right  to   change  the   Beneficiary  or
   Beneficiaries from time to time; provided, however, that any  change shall
   not become effective until received in writing by the  Corporate Secretary
   of  the Company.   If any designated Beneficiary  survives the Participant
   but dies  before receiving  all of  his benefits hereunder,  any remaining
   benefits  due  him shall  be  distributed  to  the deceased  Beneficiary's
   estate. If there is  no effective Beneficiary designation  on file at  the
   time of  the  Participant's death,  or if  the designated  Beneficiary  or
   Beneficiaries have  all predeceased  such Participant, the  payment of any
   remaining benefits shall be made to the Participant's estate.

         10.   Limitation  of Rights.  Nothing  in this Agreement or the Plan
   shall be construed to:

         (a)   give the  Participant  any right  to  be awarded  any  further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give  the Participant or any  other person any interest in any
   fund or in any specified asset  or assets of the Company or any Affiliate;
   or

         (c)   confer  upon  the Participant  the  right to  continue  in the
   employment or  service of  the Company  or any  Affiliate,  or affect  the
   right  of the  Company or  any Affiliate  to terminate  the employment  or
   service of the Participant at any time or for any reason.

         11.   Prerequisites to Benefits.   Neither the Participant,  nor any
   person claiming through the Participant, shall have any right  or interest
   in  the  Restricted  Stock awarded  hereunder,  unless and  until  all the
   terms, conditions  and provisions  of this  Agreement and  the Plan  which
   affect the Participant or such other person shall have  been complied with
   as specified herein.

         12.   Rights  as  a Stockholder.    Subject to  the  limitations and
   restrictions  contained  herein,  the Participant  (or  Beneficiary) shall
   have all rights as  a stockholder with respect to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         13.   Successors and Assigns.   This Agreement shall bind  and inure
   to the  benefit of and be enforceable by  the Participant, the Company and
   their   respective    successors   and    assigns   (including    personal
   representatives, heirs and legatees).

         14.   Governing  Law.     This  Agreement  shall  be   governed  by,
   construed  and  enforced in  accordance  with the  laws  of  the State  of
   Delaware.

         15.   Gender and Number.  Whenever the  context requires or permits, 
   the gender and number of words shall be interchangeable.

         This Agreement  is executed and delivered, in duplicate, pursuant to
   the Plan, the provisions of which are incorporated herein by reference.


   Dated:                   , 1996


   ATTEST:                                   READING & BATES CORPORATION


                                              By:
   _____________________________ 
   Secretary
                                              Its:  Vice President, Human
                                                    Resources


   _______________________________
   (Signature, Charles R. Ofner) 


                                                                Exhibit 10.55

                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS AGREEMENT is made  as of  the date set  forth on the  signature
   page hereof, between Reading &  Bates Corporation, a Delaware  corporation
   (the "Company"),  and  Don L.  McIntire (the  "Participant").   Except  as
   defined herein, capitalized terms shall have the same meaning  ascribed to
   them  under  the  1995  Long  Term  Incentive  Plan  of  Reading  &  Bates
   Corporation,  as from time  to time amended (the  "Plan").   To the extent
   that  any provision of this Agreement  conflicts with the express terms of
   the Plan, it is hereby acknowledged and agreed that the  terms of the Plan
   shall  control  and,  if  necessary,  the applicable  provisions  of  this
   Agreement shall be  hereby deemed amended so  as to carry out  the purpose
   and intent of the Plan.

         1.    Definitions.  As used herein, the terms set forth  below shall
   have the following respective meanings:

         (a)   "Cause" means Cause as defined in the Employment Agreement.

         (b)   "Change  of Control" means  a Change of Control  as defined in
   the Employment Agreement.

         (c)   "Disability"  means  Disability as  defined in  the Employment
   Agreement.

         (d)   "Employment   Agreement"   means   that   certain   Employment
   Agreement dated  as of November  1, 1991  between the Participant  and the
   Company, as amended from time to time.

         2.    Award.  In  order to encourage the  Participant's contribution
   to the  successful performance  of the  Company, in  consideration of  the
   covenants and  promises of the  Participant herein contained, the  Company
   hereby  awards to the  Participant as  of December  3, 1996 (the  "Date of
   Grant"), a  total of 5200  shares of Common  Stock, pursuant to the  Plan,
   subject to  the conditions  and restrictions  set forth below  and in  the
   Plan (the "Restricted Stock").

         3.    Restrictions  on Transfer.   The  shares  of Restricted  Stock
   granted  hereunder  to   the  Participant  may  not   be  sold,  assigned,
   transferred, pledged or otherwise encumbered from the Date of  Grant until
   said shares shall have become vested in the Participant  (and restrictions
   terminated thereon) in accordance with the provisions of this  Paragraph 3
   or  as otherwise  provided in  Paragraph 7  below.   (The  period of  time
   between the Date  of Grant and the  vesting of shares of  Restricted Stock
   shall be referred to herein as the "Restricted Period" as to those  shares
   of stock.)   The Participant  shall become vested as to 100% of the  total
   number of  shares of  Restricted Stock  awarded hereunder  on December  3,
   1999; provided,  however,  that the  Participant shall  not be  vested  in
   shares of Restricted  Stock which would be  vested as of  a given date  if
   the Participant has  not been continuously employed by the Company and its
   Affiliates from the  date of this  Agreement through such  date, in  which
   event all  of  the Participant's  rights to  such Restricted  Stock  shall
   terminate  without any payment  of consideration by the  Company, and such
   Restricted Stock  shall be  returned to  the Company  and cancelled.   The
   Restricted Period shall be subject to an earlier termination  with respect
   to all  or  a portion  of  the Restricted  Stock  in accordance  with  the
   provisions of Paragraph 7 below.

         4.    No  Code Section  83(b) Election.   The Participant  shall not
   make  an election,  under  Code Section  83(b), to  include  an amount  in 
   income in respect of this Award of Restricted Stock.

         5.    Sale  of Restricted  Stock.   The  Participant shall  not sell
   Restricted Stock  except pursuant to  an effective registration  statement
   under  the  Securities  Act  of 1933  or  pursuant  to  an  exemption from
   registration under such act.

         6.    Escrow of Certificates.  The certificates representing  shares
   of Restricted Stock shall  be registered in the name of the Participant on
   the Date  of Grant and deposited, together with  a stock power endorsed by
   the Participant  in blank,  with the  Corporate Secretary  of the  Company
   during the Restricted Period.   Each such certificate shall bear  a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions  and restrictions described in  the Plan and in this Agreement.
   Subject  to the provisions of  Paragraph 8 below,  upon termination of the
   Restricted  Period  with   respect  to  shares  of   Restricted  Stock,  a
   certificate  representing   such  shares   shall  be   delivered  to   the
   Participant as promptly as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)   a  Change  of  Control  that occurs  after  the  Date of
                     Grant; or

               (ii)  the termination of  the Participant's employment due  to
                     (A) death or  Disability, or (B) involuntary termination
                     by the  Company and all Affiliates  for any reason other
                     than Cause,  (C) retirement  at age  60 or  over or  (D)
                     voluntary  resignation   by  the  Participant  upon  the
                     continued failure by  the Company and all  Affiliates to
                     comply with the  provisions of the  Employment Agreement
                     pertaining to  the  Participant's  compensation  or  his
                     position, duties or authority;

   the Restricted Period set forth  in Paragraph 3 above shall  terminate and
   the  Participant's right to such  Restricted Stock shall become vested and
   nonforfeitable and all restrictions thereon will terminate.  

         (b)   If  the Participant's  employment  with  the Company  and  all
   Affiliates terminate  prior  to the  occurrence  of a  date set  forth  in
   Paragraph  (a)(i) above  for  any  reason  other than  death,  disability,
   involuntary  termination or  resignation  described in  Paragraph  (a)(ii)
   above, then all Restricted  Stock awarded to the Participant that  has not
   previously vested in accordance with Paragraph 3 above shall  be forfeited
   whereupon  the  Corporate  Secretary  shall  deliver  to the  Company  the
   certificates  representing such  shares  and  the stock  power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of  Restricted Stock shall  be delivered to the  Participant by the
   Company  upon  the  expiration  of   the  Restricted  Period  unless   the
   Participant  (or Beneficiary, as  defined in Paragraph 9  below) remits to
   the  Company  the  amount of  all  federal, state  and  other governmental
   withholding tax requirements imposed upon the Company with respect  to the
   issuance  of such shares  or unless provisions to  so pay such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject  to  Committee  approval, the  Participant  (or  Beneficiary)  may
   elect, at least  thirty (30) days (or  such other period as  the Committee
   may prescribe) prior to  the vesting of such Restricted Stock,  to satisfy
   such  withholding  requirements  by having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary) 
   having a Fair Market Value on the date such shares  became vested equal to
   the  amount necessary to  satisfy such withholding tax  requirements.  Any
   election  to  have  shares   withheld  to  satisfy  the   withholding  tax
   requirements  shall be  made  at  such time  and  in  such manner  as  the
   Committee shall prescribe.   Appropriate withholding may also  be deducted
   from the payment  of any  cash dividends with  respect to  such shares  of
   Restricted Stock during the Restricted Period, to the extent  necessary to
   satisfy any withholding tax requirements applicable thereto.

         9.    Beneficiary  Designations.   The  Participant shall  file with
   the  Corporate Secretary  of  the Company  a  designation of  one  or more
   beneficiaries  (each a  "Beneficiary") to  whom  shares otherwise  due the
   Participant  shall  be  distributed  in the  event  of  the  death of  the
   Participant while  in the  employ of  the Company  or an  Affiliate.   The
   Participant  shall   have  the   right  to   change  the   Beneficiary  or
   Beneficiaries from time to time; provided, however, that any  change shall
   not become effective until received in writing by the  Corporate Secretary
   of  the Company.   If any designated Beneficiary  survives the Participant
   but dies  before receiving  all of  his benefits hereunder,  any remaining
   benefits due  him  shall  be  distributed to  the  deceased  Beneficiary's
   estate. If  there is no effective  Beneficiary designation on  file at the
   time of  the  Participant's death,  or if  the designated  Beneficiary  or
   Beneficiaries have  all predeceased such  Participant, the payment of  any
   remaining benefits shall be made to the Participant's estate.

         10.   Limitation  of Rights.  Nothing  in this Agreement or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give  the Participant or any  other person any interest in any
   fund  or in any specified asset or assets of the Company or any Affiliate;
   or

         (c)   confer  upon the  Participant  the right  to  continue in  the
   employment or  service of  the Company  or  any Affiliate,  or affect  the
   right of  the Company  or any  Affiliate to  terminate  the employment  or
   service of the Participant at any time or for any reason.

         11.   Prerequisites to Benefits.   Neither the Participant,  nor any
   person claiming through the Participant, shall have any right  or interest
   in  the  Restricted  Stock awarded  hereunder,  unless and  until  all the
   terms, conditions  and provisions  of this  Agreement and  the Plan  which
   affect the Participant or such other person  shall have been complied with
   as specified herein.

         12.   Rights as  a  Stockholder.   Subject  to the  limitations  and
   restrictions  contained  herein, the  Participant  (or  Beneficiary) shall
   have all rights as a stockholder with respect  to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         13.   Successors and Assigns.  This  Agreement shall bind and  inure
   to the benefit of and be  enforceable by the Participant, the Company  and
   their   respective    successors   and    assigns   (including    personal
   representatives, heirs and legatees).

         14.   Governing  Law.     This  Agreement  shall  be   governed  by,
   construed and  enforced  in accordance  with  the  laws of  the  State  of
   Delaware.

         15.   Gender and Number.   Whenever the context requires or permits,
   the gender and number of words shall be interchangeable. 

         This Agreement is executed and delivered, in  duplicate, pursuant to
   the Plan, the provisions of which are incorporated herein by reference.


   Dated:                   , 1996


   ATTEST:                                   READING & BATES CORPORATION


                                             By:
   _____________________________ 
   Secretary
                                             Its: Exec. V.P., Finance &
                                                  Administration


   _______________________________
   (Signature, Don L. McIntire)


                                                                Exhibit 10.56

                          READING & BATES CORPORATION
                        RESTRICTED STOCK AWARD AGREEMENT


         THIS AGREEMENT is made  as of  the date set  forth on the  signature
   page hereof, between Reading &  Bates Corporation, a Delaware  corporation
   (the "Company"),  and  Wayne K.  Hillin (the  "Participant").   Except  as
   defined herein, capitalized terms shall have the same meaning  ascribed to
   them  under  the  1995  Long  Term  Incentive  Plan  of  Reading  &  Bates
   Corporation,  as from time  to time amended (the  "Plan").   To the extent
   that  any provision of this Agreement  conflicts with the express terms of
   the Plan, it is hereby acknowledged and agreed that the  terms of the Plan
   shall  control  and,  if  necessary,  the applicable  provisions  of  this
   Agreement shall be  hereby deemed amended so  as to carry out  the purpose
   and intent of the Plan.

         1.    Definitions.  As used herein, the terms set forth  below shall
   have the following respective meanings:

         (a)   "Cause" means Cause as defined in the Employment Agreement.

         (b)   "Change  of Control" means  a Change of Control  as defined in
   the Employment Agreement.

         (c)   "Disability"  means  Disability as  defined in  the Employment
   Agreement.

         (d)   "Employment   Agreement"   means   that   certain   Employment
   Agreement dated  as of November  1, 1991  between the Participant  and the
   Company, as amended from time to time.

         2.    Award.  In  order to encourage the  Participant's contribution
   to the  successful performance  of the  Company, in  consideration of  the
   covenants and  promises of the  Participant herein contained, the  Company
   hereby  awards to the  Participant as  of December  3, 1996 (the  "Date of
   Grant"), a  total of 9000  shares of Common  Stock, pursuant to the  Plan,
   subject to  the conditions  and restrictions  set forth below  and in  the
   Plan (the "Restricted Stock").

         3.    Restrictions  on Transfer.   The  shares  of Restricted  Stock
   granted  hereunder  to   the  Participant  may  not   be  sold,  assigned,
   transferred, pledged or otherwise encumbered from the Date of  Grant until
   said shares shall have become vested in the Participant  (and restrictions
   terminated thereon) in accordance with the provisions of this  Paragraph 3
   or  as otherwise  provided in  Paragraph 7  below.   (The  period of  time
   between the Date  of Grant and the  vesting of shares of  Restricted Stock
   shall be referred to herein as the "Restricted Period" as to those  shares
   of stock.)   The Participant  shall become vested as to 100% of the  total
   number of  shares of  Restricted Stock  awarded hereunder  on December  3,
   1999; provided,  however,  that the  Participant shall  not be  vested  in
   shares of Restricted  Stock which would be  vested as of  a given date  if
   the Participant has  not been continuously employed by the Company and its
   Affiliates from the  date of this  Agreement through such  date, in  which
   event all  of  the Participant's  rights to  such Restricted  Stock  shall
   terminate  without any payment  of consideration by the  Company, and such
   Restricted Stock  shall be  returned to  the Company  and cancelled.   The
   Restricted Period shall be subject to an earlier termination  with respect
   to all  or  a portion  of  the Restricted  Stock  in accordance  with  the
   provisions of Paragraph 7 below.

         4.    No  Code Section  83(b) Election.   The Participant  shall not
   make  an election,  under  Code Section  83(b), to  include  an amount  in 
   income in respect of this Award of Restricted Stock.

         5.    Sale  of Restricted  Stock.   The  Participant shall  not sell
   Restricted Stock  except pursuant to  an effective registration  statement
   under  the  Securities  Act  of 1933  or  pursuant  to  an  exemption from
   registration under such act.

         6.    Escrow of Certificates.  The certificates representing  shares
   of Restricted Stock shall  be registered in the name of the Participant on
   the Date  of Grant and deposited, together with  a stock power endorsed by
   the Participant  in blank,  with the  Corporate Secretary  of the  Company
   during the Restricted Period.   Each such certificate shall bear  a legend
   as  provided  by  the  Company,  conspicuously  referring  to  the  terms,
   conditions  and restrictions described in  the Plan and in this Agreement.
   Subject  to the provisions of  Paragraph 8 below,  upon termination of the
   Restricted  Period  with   respect  to  shares  of   Restricted  Stock,  a
   certificate  representing   such  shares   shall  be   delivered  to   the
   Participant as promptly as practicable following such termination.

         7.    Accelerated Vesting of Restricted Stock.

         (a)   Upon the first to occur of:

               (i)   a  Change  of  Control  that occurs  after  the  Date of
                     Grant; or

               (ii)  the termination of  the Participant's employment due  to
                     (A) death or  Disability, or (B) involuntary termination
                     by the  Company and all Affiliates  for any reason other
                     than Cause,  (C) retirement  at age  60 or  over or  (D)
                     voluntary  resignation   by  the  Participant  upon  the
                     continued failure by  the Company and all  Affiliates to
                     comply with the  provisions of the  Employment Agreement
                     pertaining to  the  Participant's  compensation  or  his
                     position, duties or authority;

   the Restricted Period set forth  in Paragraph 3 above shall  terminate and
   the  Participant's right to such  Restricted Stock shall become vested and
   nonforfeitable and all restrictions thereon will terminate.  

         (b)   If  the Participant's  employment  with  the Company  and  all
   Affiliates terminate  prior  to the  occurrence  of a  date set  forth  in
   Paragraph  (a)(i) above  for  any  reason  other than  death,  disability,
   involuntary  termination or  resignation  described in  Paragraph  (a)(ii)
   above, then all Restricted  Stock awarded to the Participant that  has not
   previously vested in accordance with Paragraph 3 above shall  be forfeited
   whereupon  the  Corporate  Secretary  shall  deliver  to the  Company  the
   certificates  representing such  shares  and  the stock  power  previously
   deposited with the Corporate Secretary pursuant to Paragraph 6 above.

         8.    Withholding  of  Taxes.    No  certificates  representing  the
   shares of  Restricted Stock shall  be delivered to the  Participant by the
   Company  upon  the  expiration  of   the  Restricted  Period  unless   the
   Participant  (or Beneficiary, as  defined in Paragraph 9  below) remits to
   the  Company  the  amount of  all  federal, state  and  other governmental
   withholding tax requirements imposed upon the Company with respect  to the
   issuance  of such shares  or unless provisions to  so pay such withholding
   requirements  have  been  made  to  the  satisfaction  of  the  Committee.
   Subject  to  Committee  approval, the  Participant  (or  Beneficiary)  may
   elect, at least  thirty (30) days (or  such other period as  the Committee
   may prescribe) prior to  the vesting of such Restricted Stock,  to satisfy
   such  withholding  requirements  by having  the  Company  withhold  shares
   otherwise  deliverable  hereunder  to  the  Participant  (or  Beneficiary) 
   having a Fair Market Value on the date such shares  became vested equal to
   the  amount necessary to  satisfy such withholding tax  requirements.  Any
   election  to  have  shares   withheld  to  satisfy  the   withholding  tax
   requirements  shall be  made  at  such time  and  in  such manner  as  the
   Committee shall prescribe.   Appropriate withholding may also  be deducted
   from the payment  of any  cash dividends with  respect to  such shares  of
   Restricted Stock during the Restricted Period, to the extent  necessary to
   satisfy any withholding tax requirements applicable thereto.

         9.    Beneficiary  Designations.   The  Participant shall  file with
   the  Corporate Secretary  of  the Company  a  designation of  one  or more
   beneficiaries  (each a  "Beneficiary") to  whom  shares otherwise  due the
   Participant  shall  be  distributed  in the  event  of  the  death of  the
   Participant while  in the  employ of  the Company  or an  Affiliate.   The
   Participant  shall   have  the   right  to   change  the   Beneficiary  or
   Beneficiaries from time to time; provided, however, that any  change shall
   not become effective until received in writing by the  Corporate Secretary
   of  the Company.   If any designated Beneficiary  survives the Participant
   but dies  before receiving  all of  his benefits hereunder,  any remaining
   benefits due  him  shall  be  distributed to  the  deceased  Beneficiary's
   estate. If  there is no effective  Beneficiary designation on  file at the
   time of  the  Participant's death,  or if  the designated  Beneficiary  or
   Beneficiaries have  all predeceased such  Participant, the payment of  any
   remaining benefits shall be made to the Participant's estate.

         10.   Limitation  of Rights.  Nothing  in this Agreement or the Plan
   shall be construed to:

         (a)   give  the Participant  any  right to  be  awarded any  further
   restricted stock other than in the sole discretion of the Committee;

         (b)   give  the Participant or any  other person any interest in any
   fund  or in any specified asset or assets of the Company or any Affiliate;
   or

         (c)   confer  upon the  Participant  the right  to  continue in  the
   employment or  service of  the Company  or  any Affiliate,  or affect  the
   right of  the Company  or any  Affiliate to  terminate  the employment  or
   service of the Participant at any time or for any reason.

         11.   Prerequisites to Benefits.   Neither the Participant,  nor any
   person claiming through the Participant, shall have any right  or interest
   in  the  Restricted  Stock awarded  hereunder,  unless and  until  all the
   terms, conditions  and provisions  of this  Agreement and  the Plan  which
   affect the Participant or such other person  shall have been complied with
   as specified herein.

         12.   Rights as  a  Stockholder.   Subject  to the  limitations  and
   restrictions  contained  herein, the  Participant  (or  Beneficiary) shall
   have all rights as a stockholder with respect  to the shares of Restricted
   Stock once such shares have been registered in his name hereunder.

         13.   Successors and Assigns.  This  Agreement shall bind and  inure
   to the benefit of and be  enforceable by the Participant, the Company  and
   their   respective    successors   and    assigns   (including    personal
   representatives, heirs and legatees).

         14.   Governing  Law.     This  Agreement  shall  be   governed  by,
   construed and  enforced  in accordance  with  the  laws of  the  State  of
   Delaware.

         15.   Gender and Number.   Whenever the context requires or permits,
   the gender and number of words shall be interchangeable. 

         This Agreement is executed and delivered, in  duplicate, pursuant to
   the Plan, the provisions of which are incorporated herein by reference.


   Dated:                   , 1996


   ATTEST:                                   READING & BATES CORPORATION


                                             By:
   _____________________________ 
   Asst. Secretary
                                          Its:  Vice President, Human
                                                Resources


   _______________________________
   (Signature, Wayne K. Hillin)


                                                                 EXHIBIT 10.60


                          SECOND AMENDMENT AGREEMENT

                                 relating to a

                        $90,000,000 Facility Agreement

                                    between

                              ARCADE DRILLING AS
                                  as Borrower

                         CHASE INVESTMENT BANK LIMITED
                                  as Arranger

                     CHASE MANHATTAN INTERNATIONAL LIMITED
                                   as Agent

                                      and

                                    OTHERS

==============================================================================

                                Clifford Chance
                                    London

                   THIS SECOND AMENDMENT AGREEMENT is made on    
                                     1996

                                    BETWEEN
                    (1)ARCADE DRILLING AS (the "Borrower");
              (2)CHASE INVESTMENT BANK LIMITED (the "Arranger");
          (3)CHASE MANHATTAN INTERNATIONAL LIMITED (the "Agent"); and
   (4)THE FINANCIAL INSTITUTIONS named in the First Schedule (the "Banks").

                                    WHEREAS
 (A)Pursuant to an agreement (the "Facility Agreement") dated 21 February 1991
 between the parties hereto a $90,000,000 loan facility was made available to
                                 the Borrower;

 (B)The Borrower has requested the amendment of the Loan Agreement in certain
                                   respects.

   (C)The total principal amount outstanding under the Facility Agreement is
                            currently $32,500,000.


                                 IT IS AGREED 
==============================================================================

                               1.Interpretation

   1.1Terms defined in the Facility Agreement bear the same meaning herein.

      1.2   In  this Agreement  "BP'  means BP  Exploration Operating  Company
            Limited and "Effective Date" shall bear the meaning given to it in
            Clause 2. 1.

2.    Effective Date

      2.1   The Effective Date shall be the first date upon which:

            (i)   the Agent shall have  confirmed to the Borrower that  it has
                  received all of the documents listed in the  Second Schedule
                  and that each is  in form and substance satisfactory  to the
                  Agent;

            (ii)  the representations set out in Clause 4 are true;

            (iii) no  event  has occurred  which is  or  may become  (with the
                  passage of time,  the giving  of notice, the  making of  any
                  determination  or  any  combination  thereof)  an  Event  of
                  Default or such earlier date as the Agent may agree.

      2.2   The Agent shall, promptly after becoming aware of the same, notify
            the other parties hereto of the occurrence of the Effective Date.

      2.3   For  the purposes of  Clause 2.2  the Agent  shall be  entitled to
            assume, unless it  has actual  notice or actual  knowledge to  the
            contrary,  that the  conditions specified  in Clause 2.  1(ii) and
            (iii) are satisfied.

      2.4   The giving of notice by the  Agent pursuant to Clause 2.2 shall be
            conclusive evidence of the occurrence of the Effective Date.

3.    Amendments to Loan Agreement

      3.1   On  the Effective Date the  Loan Agreement shall  stand amended as
            set out in the Third Schedule and thereafter  any reference in any
            Finance  Document  to the  Facility  Agreement  shall (unless  the
            context otherwise requires)  be construed  as a  reference to  the
            Facility  Agreement as  amended  pursuant hereto  or from  time to
            time.

      3.2   Save  as expressly  provided  herein each  Finance Document  shall
            continue in full force and effect in accordance with its terms.

4.    Representations

      The Borrower hereby represents that:

            (i)   each  of the  representations set  out in  Clause 16  of the
                  Facility Agreement (other than in sub-clauses 16.2(viii) and
                  Ox) and other  than sub-clause  16.2(vii), in so  far as  it
                  relates  to  the  Loan  Agreement  prior  to  its  amendment
                  pursuant  hereto) is true and will remain true upon the Loan
                  Agreement being  amended as herein  provided, but as  if all
                  reference   to  the   Original  Financial   Statements  were
                  references  to the  Borrower's audited  financial statements
                  for the financial year ending 31 December 1995; and

            (ii)  each  of the representations set  out in Clause  16.1 of the
                  Loan Agreement ,would  be true if all  references therein to
                  the Finance Documents included this Agreement.

5.    Benefit of Agreement

      5.1   This Agreement shall be binding  upon and enure to the  benefit of
            each party hereto and its successors and assigns.

      5.2   The  Borrower shall not  be entitled to assign  or transfer all or
            any of its rights, benefits and obligations hereunder.

6.          Miscellaneous

            6.1   The provisions of Clauses 26, 27 and 34 to 38 inclusive of
                  the Facility Agreement shall be deemed incorporated herein
                  mutates mutandis but as if references therein to the
                  Facility Agreement or the Finance Documents were references
                  to this Agreement.

            6.2   The Borrower undertakes to deliver to the Agent, by no later
                  than 15 November 1996, a copy of the executed contract
                  between it and BP for the employment of the Paul B. Loyd Jr.
                  from 1 November 1996 on terms satisfactory to the Agent.

7.          Counterparts

            This Agreement may be ex=ted in any number of counterparts and by
            different parties hereto as separate counterparts each of which,
            when executed and delivered, shall constitute an original, but all
            the counterparts shall together constitute but one and the same
            instrument.

8.          Changes to the Banks

            The Banks and their respective shares of the Advance as at the
            date hereof are as set out in the First Schedule.

9.          Status of this Agreement

            It is agreed that this Agreement is a Finance Document as defined
            in the Facility Agreement.

IN WITNESS whereof this Agreement has been executed by the parties hereto the
day and year first before written. 


                              THE FIRST SCHEDULE

Bank                                                      Share of the Advance

Christiania Bank OG Kreditkasse                                     $1,805,557
The Chase Manhattan Bank                                           $30,694,443
                                                                   $32,500,000


                              THE SECOND SCHEDULE

                         Condition Precedent Documents

1.    A copy  certified as  a true copy  by a duly  authorized officer  of the
      Borrower, of a board resolution of the Borrower approving the execution,
      delivery and performance of this Agreement.

2.    A copy  certified  a true  copy  by a  duly  authorized officer  of  the
      Borrower  of any  power  of  attorney  issued  pursuant  to  such  Board
      Resolutions.

3.    A legal opinion of the Agent's English and Norwegian counsel and written
      confirmation  from  the  Bank's  Panamanian counsel  that  the  security
      constituted by the Mortgages is not adversely affected by the amendments
      effected hereby.

4.    A copy of  the executed contract between the Borrower and BP Exploration
      Operating  Company  limited  ("BP")  for  the employment  of  the  Henry
      Goodrich from 1 October 1996 (on terms satisfactory to the Agent);

5.    Evidence  that  any condition  to  the  effectiveness  of  the  contract
      referred to in paragraph 4 above have been met.


                              THE THIRD SCHEDULE

1.    Reference in this  Schedule to  Clauses or Schedules  shall, unless  the
      context otherwise requires, be construed as references to clauses of the
      Facility Agreement.

2.    The Facility Agreement shall be amended as follows:

      (A)   New Definition

            A new definition of "BP Contracts" shall be inserted as follows:

            "BP Contracts" means:

                  (i)   the contract between  the Borrower and  BP Exploration
                        Operating Company Limited ("BP") for the employment of
                        the Henry Goodrich from 1 October 1996; and

                  (ii)  the  contract  between the  Borrower  and  BP for  the
                        employment of the  Paul B.  Loyd Jr.  from 1  November
                        1996.

      (B)   Margin
            The Applicable Margin shall reduce to 0.45 per cent. p.a.;

      (C)   The  Repayment Schedule  in the Sixth  Schedule is  reconfirmed as
            follows:
            "Repayment Date                           Repayment
                                                            ($)
            28 February 1997                          5,000,000
            29 August 1997                            6,500,000
            27 February 1998                          6,500,000
            31 August 1998                            6,500,000
            26 February 1999                          4,000,000
            31 August 1999                            4,000,000

                                         Total US$   32,500,000

      (D)   Financial Information

            (i)   Clause   17.1(ii)(a)  shall  be  amended  by  deleting  sub-
                  paragraphs (2), (3), (4) and (5) thereof.

            (ii)  Clause 17.1(ii)(b) shall be deleted.

      (E)   Financial Condition

            (i)   Clauses 18.1(i), 18.2, 18.3 and 18.4 shall be deleted.

            (ii)  The existing  Clause 18.1(ii) shall be  deleted and replaced
                  with the following:

                        "in respect  of the  Arcade Group Liquid  Assets shall
                        not be  less than $10,000,000 Provided  Always that if
                        an Instructing Group determines in its sole discretion
                        that  (as at  1  November in  each year)  satisfactory
                        contractual  commitments exist  for the  employment of
                        the Rigs  for the  twelve month period  following such
                        date  then  during  such twelve  month  period  Liquid
                        Assets  may (notwithstanding  the  foregoing) be  less
                        than  $10,000,000 but shall  not in any  event be less
                        than   $1,500,000  Provided   Further   that   it   is
                        acknowledged  that  the  foregoing  proviso  shall  be
                        deemed to be satisfied if and  for so long as at least
                        one  of the Rigs is employed pursuant to a BP Contract
                        and no notice of cancellation has been received by the
                        Borrower thereunder".

            (iii) Clause  18.5 shall  be deleted  save for  the definition  of
                  "Reporting Date" in Clause 18.5(i). 

            (iv)  Clause 18.6  shall be  deleted  save for  the definition  of
                  "Liquid Assets" in Clause 18.6(v).

      (F)   Covenants

            (i)   Clause 19.3(iii)  shall be  amended by adding  the following
                  proviso:

                        "Provided always  that this Clause shall  not apply if
                        and for so  long as (a)  at least one  of the Rigs  is
                        employed pursuant  to a BP  Contract and no  notice of
                        cancellation   has  been  received   by  the  Borrower
                        thereunder  and  (b)  Liquid   Assets  are  at   least
                        $1,500,000".

            (ii)  Without  prejudice  to  Clause  20.1(xv)  of  the   Facility
                  Agreement  the Agent  and the  Banks hereby  consent to  the
                  management of the  "Henry Goodrich" by Reading and Bates.


The Borrower

ARCADE DRILLING A/S

By: /s/ A. Bakonyi

Address:    Radhusg 5B
            0151 Oslo 1
            Norway

Attention:

Arranger

CHASE INVESTMENT BANK LIMITED
as Arranger and Lead Manager

By:

Address:    Woolgate House
            Coleman Street
            London EC2P 2HD

Attention:  Syndicated Loans

The Banks

THE CHASE MANHATTAN BANK
as Bank

By: 

Address:    Woolgate House
            Coleman Street
            London EC2P 2HD

Attention:

Telex:      8954681 CMBG (tel: 0171 726 5574)

CHRISTIANIA BANK OG KREDITKASSE
as Bank

By:

Address:    PO. Box Sentrum
            0107 Oslo 1
            Norway

The Agent

CHASE MANHATTAN INTERNATIONAL LIMITED

By:

Address:    1 Chaseside
            Bournemouth
            Dorset BH7 7DB

Attention:

Telex:      8954681 CMB G 


                                                                 Exhibit 10.85
                                                                              


                               CREDIT AGREEMENT


                                     among

                        READING AND BATES CORPORATION,

                         READING & BATES DRILLING CO.,

                         VARIOUS LENDING INSTITUTIONS,

                       CREDIT LYONNAIS NEW YORK BRANCH,
                                  AS CO-AGENT

                                      and

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,

                                   as AGENT

                     ____________________________________


                          Dated as of April 30, 1996

                     ____________________________________

==============================================================================

                               TABLE OF CONTENTS
                                                                          Page

SECTION 1.  Amount and Terms of Credit  . . . . . . . . . . . . . . . . .    1
      1.01  Commitment  . . . . . . . . . . . . . . . . . . . . . . . . .    1
      1.02  Minimum Borrowing Amounts, etc. . . . . . . . . . . . . . . .    1
      1.03  Notice of Borrowing . . . . . . . . . . . . . . . . . . . . .    2
      1.04  Disbursement of Funds . . . . . . . . . . . . . . . . . . . .    2
      1.05  Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
      1.06  Pro Rata Borrowings . . . . . . . . . . . . . . . . . . . . .    3
      1.07  Interest  . . . . . . . . . . . . . . . . . . . . . . . . . .    3
      1.08  Interest Periods  . . . . . . . . . . . . . . . . . . . . . .    4
      1.09  Increased Costs, Illegality, etc. . . . . . . . . . . . . . .    5
      1.10  Compensation  . . . . . . . . . . . . . . . . . . . . . . . .    8 
      1.11  Change of Lending Office; Limitation
               on Indemnities . . . . . . . . . . . . . . . . . . . . . .    8
      1.12  Replacement of Banks  . . . . . . . . . . . . . . . . . . . .    8

SECTION 2.  Letters of Credit . . . . . . . . . . . . . . . . . . . . . .    9
      2.01  Letters of Credit . . . . . . . . . . . . . . . . . . . . . .    9
      2.02  Letter of Credit Requests; Request for
               Issuance of Letter of Credit . . . . . . . . . . . . . . .   10
      2.03  Agreement to Repay Letter of Credit Payments  . . . . . . . .   11
      2.04  Letter of Credit Participations . . . . . . . . . . . . . . .   11
      2.05  Increased Costs . . . . . . . . . . . . . . . . . . . . . . .   13
      2.06  Indemnities . . . . . . . . . . . . . . . . . . . . . . . . .   14

SECTION 3.  Fees; Commitments . . . . . . . . . . . . . . . . . . . . . .   15
      3.01  Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   15
      3.02  Voluntary Reduction of Commitments  . . . . . . . . . . . . .   15
      3.03  Mandatory Adjustments of Commitments, etc.  . . . . . . . . .   16

SECTION 4.  Payments  . . . . . . . . . . . . . . . . . . . . . . . . . .   17
      4.01  Voluntary Prepayments . . . . . . . . . . . . . . . . . . . .   17
      4.02  Mandatory Prepayments . . . . . . . . . . . . . . . . . . . .   18
      4.03  Method and Place of Payment . . . . . . . . . . . . . . . . .   19
      4.04  Net Payments  . . . . . . . . . . . . . . . . . . . . . . . .   19

SECTION 5.  Conditions Precedent  . . . . . . . . . . . . . . . . . . . .   22
      5.01  Execution of Agreement  . . . . . . . . . . . . . . . . . . .   22
      5.02  No Default; Representations and Warranties;
               No Collateral Disposition of Jack Bates  . . . . . . . . .   22
      5.03  Officer's Certificate . . . . . . . . . . . . . . . . . . . .   22
      5.04  Opinions of Counsel . . . . . . . . . . . . . . . . . . . . .   22
      5.05  Corporate Proceedings . . . . . . . . . . . . . . . . . . . .   22
      5.06  Existing Indebtedness Agreements  . . . . . . . . . . . . . .   23
      5.07  Adverse Change, etc.  . . . . . . . . . . . . . . . . . . . .   23
      5.08  Litigation  . . . . . . . . . . . . . . . . . . . . . . . . .   23
      5.09  Approvals . . . . . . . . . . . . . . . . . . . . . . . . . .   23
      5.10  Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   24
      5.11  Security Agreement  . . . . . . . . . . . . . . . . . . . . .   24
      5.12  Subsidiary Guaranty . . . . . . . . . . . . . . . . . . . . .   24
      5.13  Mortgages . . . . . . . . . . . . . . . . . . . . . . . . . .   25
      5.14  Evidence of Lien, etc.  . . . . . . . . . . . . . . . . . . .   25
      5.15  Vessel Trust Indenture  . . . . . . . . . . . . . . . . . . .   26
      5.16  Rig Reports; Drilling Contracts . . . . . . . . . . . . . . .   26
      5.17  Insurance Report  . . . . . . . . . . . . . . . . . . . . . .   26
      5.18  Collateral Assignments of Insurances  . . . . . . . . . . . .   27
      5.19  Earnings Concentration Account  . . . . . . . . . . . . . . .   27
      5.20  Refinancing; Existing Credit Agreement  . . . . . . . . . . .   28
      5.21  Compliance Certificate  . . . . . . . . . . . . . . . . . . .   29

SECTION 6.  Representations, Warranties and Agreements  . . . . . . . . .   29
      6.01  Corporate Status  . . . . . . . . . . . . . . . . . . . . . .   29
      6.02  Corporate Power and Authority . . . . . . . . . . . . . . . .   29
      6.03  No Violation  . . . . . . . . . . . . . . . . . . . . . . . .   30
      6.04  Litigation  . . . . . . . . . . . . . . . . . . . . . . . . .   30
      6.05  Use of Proceeds; Margin Regulations . . . . . . . . . . . . .   30
      6.06  Governmental Approvals  . . . . . . . . . . . . . . . . . . .   31
      6.07  Investment Company Act  . . . . . . . . . . . . . . . . . . .   31
      6.08  Public Utility Holding Company Act  . . . . . . . . . . . . .   31
      6.09  True and Complete Disclosure  . . . . . . . . . . . . . . . .   31
      6.10  Financial Condition; Financial Statements;
               Projections  . . . . . . . . . . . . . . . . . . . . . . .   32
      6.11  Security Interests  . . . . . . . . . . . . . . . . . . . . .   33
      6.12  Tax Returns and Payments  . . . . . . . . . . . . . . . . . .   33
      6.13  Compliance with ERISA . . . . . . . . . . . . . . . . . . . .   33
      6.14  Subsidiaries  . . . . . . . . . . . . . . . . . . . . . . . .   34
      6.15  Patents, etc. . . . . . . . . . . . . . . . . . . . . . . . .   34
      6.16  Pollution and Other Regulations . . . . . . . . . . . . . . .   34
      6.17  Properties  . . . . . . . . . . . . . . . . . . . . . . . . .   35
      6.18  Labor Relations . . . . . . . . . . . . . . . . . . . . . . .   35
      6.19  Existing Indebtedness . . . . . . . . . . . . . . . . . . . .   36
      6.20  Citizenship . . . . . . . . . . . . . . . . . . . . . . . . .   36
      6.21  Rig Classification  . . . . . . . . . . . . . . . . . . . . .   36

SECTION 7.  Affirmative Covenants . . . . . . . . . . . . . . . . . . . .   36
      7.01  Information Covenants . . . . . . . . . . . . . . . . . . . .   36
      7.02  Books, Records and Inspections  . . . . . . . . . . . . . . .   39
      7.03  Insurance . . . . . . . . . . . . . . . . . . . . . . . . . .   39
      7.04  Payment of Taxes  . . . . . . . . . . . . . . . . . . . . . .   39
      7.05  Consolidated Corporate Franchises . . . . . . . . . . . . . .   39
      7.06  Compliance with Statutes, etc.  . . . . . . . . . . . . . . .   40
      7.07  Good Repair . . . . . . . . . . . . . . . . . . . . . . . . .   40
      7.08  End of Fiscal Years; Fiscal Quarters  . . . . . . . . . . . .   40
      7.09  Use of Proceeds . . . . . . . . . . . . . . . . . . . . . . .   40
      7.10  Additional Rig Valuations . . . . . . . . . . . . . . . . . .   40
      7.11  Further Assurances  . . . . . . . . . . . . . . . . . . . . .   41
      7.12  ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . .   41

SECTION 8.  Negative Covenants  . . . . . . . . . . . . . . . . . . . . .   42
      8.01  Changes in Business . . . . . . . . . . . . . . . . . . . . .   42
      8.02  Consolidation, Merger or Sale of Assets, etc. . . . . . . . .   42
      8.03  Liens on Collateral . . . . . . . . . . . . . . . . . . . . .   43
      8.04  Dividends; Restrictions on Subsidiaries, etc. . . . . . . . .   44
      8.05  Transactions with Affiliates  . . . . . . . . . . . . . . . .   46
      8.06  Vessel Management; Registry . . . . . . . . . . . . . . . . .   46
      8.07  Coverage Ratio  . . . . . . . . . . . . . . . . . . . . . . .   47
      8.08  Working Capital . . . . . . . . . . . . . . . . . . . . . . .   47
      8.09  Leverage Ratio  . . . . . . . . . . . . . . . . . . . . . . .   47
      8.10  Collateral Maintenance  . . . . . . . . . . . . . . . . . . .   47

SECTION 9.  Events of Default . . . . . . . . . . . . . . . . . . . . . .   47
      9.01  Payments  . . . . . . . . . . . . . . . . . . . . . . . . . .   47
      9.02  Representations, etc. . . . . . . . . . . . . . . . . . . . .   47
      9.03  Covenants . . . . . . . . . . . . . . . . . . . . . . . . . .   47
      9.04  Default Under Other Agreements  . . . . . . . . . . . . . . .   48
      9.05  Bankruptcy, etc.  . . . . . . . . . . . . . . . . . . . . . .   48
      9.06  Security Documents  . . . . . . . . . . . . . . . . . . . . .   48
      9.07  Guaranty  . . . . . . . . . . . . . . . . . . . . . . . . . .   49
      9.08  Judgments . . . . . . . . . . . . . . . . . . . . . . . . . .   49
      9.09  Citizenship . . . . . . . . . . . . . . . . . . . . . . . . .   49
      9.10  Employee Benefit Plans  . . . . . . . . . . . . . . . . . . .   49
      9.11  Change of Control . . . . . . . . . . . . . . . . . . . . . .   49

SECTION 10.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . .   50

SECTION 11.  The Agent  . . . . . . . . . . . . . . . . . . . . . . . . .   68
      11.01  Appointment  . . . . . . . . . . . . . . . . . . . . . . . .   68
      11.02  Nature of Duties . . . . . . . . . . . . . . . . . . . . . .   68
      11.03  Lack of Reliance on the Agent  . . . . . . . . . . . . . . .   68
      11.04  Certain Rights of the Agent  . . . . . . . . . . . . . . . .   69
      11.05  Reliance . . . . . . . . . . . . . . . . . . . . . . . . . .   69
      11.06  Indemnification  . . . . . . . . . . . . . . . . . . . . . .   69
      11.07  The Agent in Its Individual Capacity . . . . . . . . . . . .   70
      11.08  Holders  . . . . . . . . . . . . . . . . . . . . . . . . . .   70
      11.09  Resignation by the Agent . . . . . . . . . . . . . . . . . .   70

SECTION 12.  Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . .   71
      12.01  Payment of Expenses, etc.  . . . . . . . . . . . . . . . . .   71
      12.02  Right of Setoff  . . . . . . . . . . . . . . . . . . . . . .   72
      12.03  Notices  . . . . . . . . . . . . . . . . . . . . . . . . . .   72
      12.04  Benefit of Agreement . . . . . . . . . . . . . . . . . . . .   73
      12.05  No Waiver; Remedies Cumulative . . . . . . . . . . . . . . .   74
      12.06  Payments Pro Rata  . . . . . . . . . . . . . . . . . . . . .   75
      12.07  Calculations; Computations . . . . . . . . . . . . . . . . .   75
      12.08  GOVERNING LAW; SUBMISSION TO
                JURISDICTION; VENUE; WAIVER OF JURY TRIAL   . . . . . . .   76
      12.09  Counterparts . . . . . . . . . . . . . . . . . . . . . . . .   77
      12.10  Effectiveness  . . . . . . . . . . . . . . . . . . . . . . .   77
      12.11  Headings Descriptive . . . . . . . . . . . . . . . . . . . .   77
      12.12  Amendment or Waiver  . . . . . . . . . . . . . . . . . . . .   77
      12.13  Survival . . . . . . . . . . . . . . . . . . . . . . . . . .   78
      12.14  Domicile of Loans  . . . . . . . . . . . . . . . . . . . . .   78
      12.15  Confidentiality  . . . . . . . . . . . . . . . . . . . . . .   78
      12.16  Registry . . . . . . . . . . . . . . . . . . . . . . . . . .   79

SECTION 13.  Holdings Guaranty  . . . . . . . . . . . . . . . . . . . . .   79
      13.1  The Guaranty  . . . . . . . . . . . . . . . . . . . . . . . .   79
      13.2  Bankruptcy  . . . . . . . . . . . . . . . . . . . . . . . . .   80
      13.3  Nature of Liability . . . . . . . . . . . . . . . . . . . . .   80
      13.4  Independent Obligation  . . . . . . . . . . . . . . . . . . .   80
      13.5  Waiver of Notice, etc.  . . . . . . . . . . . . . . . . . . .   80
      13.6  Authorization . . . . . . . . . . . . . . . . . . . . . . . .   81
      13.7  Reliance  . . . . . . . . . . . . . . . . . . . . . . . . . .   82
      13.8  Subordination . . . . . . . . . . . . . . . . . . . . . . . .   82
      13.9  Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . .   82

ANNEX I       --  Commitments
ANNEX II      --  Bank Addresses
ANNEX III     --  Existing Letters of Credit
ANNEX IV      --  Commitment Reduction Schedule
ANNEX V       --  Subsidiaries
ANNEX VI      --  Rigs and Vessels
ANNEX VII     --  Existing Indebtedness
ANNEX VIII    --  Existing Liens
ANNEX IX      --  Approved Shipbrokers


EXHIBIT A     --  Form of Notice of Borrowing
EXHIBIT B     --  Form of Note
EXHIBIT C     --  Form of Letter of Credit Request
EXHIBIT D     --  Form of Section 4.04(b)(ii) Certificate
EXHIBIT E-1   --  Form of Opinion of Wayne Hillin, Esq.
EXHIBIT E-2   --  Form of Opinion of White & Case
EXHIBIT F     --  Form of Officers' Certificate
EXHIBIT G     --  Form of Security Agreement
EXHIBIT H     --  Form of Subsidiary Guaranty
EXHIBIT I-1   --  Form of US Mortgage 
EXHIBIT I-2   --  Form of Panamanian Mortgage
EXHIBIT I-3   --  Form of Australian Mortgage
EXHIBIT I-4   --  Form of Bahamian Mortgage
EXHIBIT J     --  Form of Vessel Trust Indenture
EXHIBIT K     --  Form of Collateral Assignment of Insurance
EXHIBIT L     --  Form of Compliance Certificate 
EXHIBIT M     --  Form of Assignment and Assumption Agreement


==============================================================================
 
            CREDIT  AGREEMENT, dated  as of  April 30,  1996, among  READING &
BATES CORPORATION  ("Holdings"),  a  Delaware  corporation,  READING  &  BATES
DRILLING  CO.  (the   "Borrower"),  an  Oklahoma   corporation,  the   lending
institutions listed from time  to time on Annex  I hereto (each a "Bank"  and,
collectively, the "Banks"), CREDIT LYONNAIS  NEW YORK BRANCH, as co-agent (the
"Co-Agent") and  CHRISTIANIA BANK  OG KREDITKASSE, NEW  YORK BRANCH,  as agent
(the "Agent").   Unless otherwise  defined herein, all capitalized  terms used
herein and defined in Section 10 are used herein as so defined.


                             W I T N E S S E T H :


            WHEREAS,  subject to and upon  the terms and  conditions set forth
herein, the Banks  are willing to  make available to  the Borrower the  credit
facilities provided for herein;


            NOW, THEREFORE, IT IS AGREED:

            SECTION 1.  Amount and Terms of Credit.

            1.01  Commitment.   Subject to  and upon the  terms and conditions
herein set forth, each Bank severally agrees  to make a loan or loans (each  a
"Loan" and, collectively,  the "Loans")  under the Facility  to the  Borrower,
which Loans (i) shall  be made at any time and from time  to time on and after
the Initial Borrowing  Date and prior to the Maturity Date, (ii) may be repaid
and  reborrowed  in accordance  with the  provisions  hereof, (iii)  shall not
exceed  in the  aggregate for  all Banks  at any  time outstanding,  the Total
Commitment and (iv) shall not exceed for any Bank at any time outstanding that
aggregate principal amount which, when combined with the aggregate outstanding
principal amount of all other Loans of such Bank and with such Bank's Adjusted
Percentage  of the Letter of Credit Outstandings (exclusive of Unpaid Drawings
which are repaid with the proceeds  of, and simultaneously with the incurrence
of, the respective incurrence  of Loans) at such time, equals (1) if such Bank
is a  Non-Defaulting Bank, the Adjusted  Commitment of such Bank  at such time
and (2) if such Bank is a Defaulting Bank, the Commitment of such Bank at such
time.  

            1.02  Minimum Borrowing  Amounts, etc.    The aggregate  principal
amount of  each Borrowing shall not be less than the Minimum Borrowing Amount.
More than  one Borrowing may be incurred on any  day, provided that at no time
shall there be outstanding more than eight Borrowings.

            1.03  Notice of Borrowing.  Whenever the Borrower desires to incur
Loans under the Facility, it shall give  the Agent at its Notice Office, prior
to 12:00 Noon (New  York time), at  least three Business  Days' prior  written
notice  (or telephonic notice promptly confirmed in writing) of each Borrowing
to be made hereunder.  Each  such notice (each a "Notice of  Borrowing") shall
be in the form of Exhibit A and shall be irrevocable and shall specify (i) the
aggregate principal amount of the Loans to be made pursuant to such Borrowing,
(ii) the date of Borrowing (which shall be a Business Day), (iii) the Interest
Period to be initially applicable thereto and  (iv) disbursement instructions.
The Agent shall promptly give  each Bank written notice (or  telephonic notice
promptly confirmed in writing) of each proposed Borrowing, of such Bank's pro-
portionate  share thereof and  of the other  matters covered by  the Notice of
Borrowing.

            1.04  Disbursement of  Funds.  (a)  No later than  1:00 P.M.  (New
York time) on the  date specified in each Notice of Borrowing,  each Bank will
make available its  pro rata share of  each Borrowing requested to  be made on
such date in the manner provided below.  All such amounts shall be made avail-
able  to the  Agent in  U.S. Dollars  and immediately  available funds  at the
Payment  Office and the Agent promptly will  make available to the Borrower by
depositing to  its account at  the Payment Office  (or in accordance  with any
other  disbursement instructions given by  the Borrower) the  aggregate of the
amounts so made  available in  U.S. Dollars and  immediately available  funds.
Unless the Agent  shall have been  notified by any Bank  prior to the  date of
Borrowing that such  Bank does not intend  to make available to  the Agent its
portion of the Borrowing or  Borrowings to be made on such date, the Agent may
assume that such Bank has made such amount available to the Agent on such date
of  Borrowing, and the  Agent, in reliance  upon such assumption,  may (in its
sole discretion and  without any obligation  to do so)  make available to  the
Borrower a corresponding amount.  If  such corresponding amount is not in fact
made available to the Agent by such Bank and the Agent has made available same
to the  Borrower, the  Agent shall be  entitled to recover  such corresponding
amount from such Bank.   If such Bank  does not pay such  corresponding amount
forthwith upon the Agent's  demand therefor, the Agent shall promptly  (and in
any event within  two Business Days from  the date the  Agent made such  funds
available to the Borrower) notify the Borrower, and the Borrower shall (within
two Business Days of receiving  such demand) pay such corresponding  amount to
the Agent.   The Agent shall also  be entitled to recover  on demand from such
Bank  or the  Borrower, as  the case  may be,  interest on  such corresponding
amount in respect of each day from the date such corresponding amount was made
available  by the Agent to the Borrower  to the date such corresponding amount
is recovered by the Agent, at  a rate per annum equal  to (x) if paid by  such
Bank, the overnight  Federal Funds Effective Rate  or (y) if paid  by the Bor-
rower, the then  applicable rate  of interest, calculated  in accordance  with
Section 1.07, for the respective Loans.

            (b)  Nothing herein shall be  deemed to relieve any Bank  from its
obligation to fulfill  its commitments  hereunder or to  prejudice any  rights
which  the Borrower may have  against any Bank  as a result of  any default by
such Bank hereunder.

            1.05  Notes.  (a)  The Borrower's obligation to pay  the principal
of, and interest on, the Loans made to it by each Bank shall be evidenced by a
promissory  note  substantially  in   the  form  of  Exhibit  B   with  blanks
appropriately   completed  in   conformity  herewith   (each  a   "Note"  and,
collectively, the "Notes").

            (b)  The  Note issued to  each Bank shall  (i) be executed  by the
Borrower,  (ii) be payable to the order of  such Bank and be dated the Initial
Borrowing Date, (iii) be in a  stated principal amount equal to the Commitment
of such Bank on  such date and be payable in the principal amount of the Loans
evidenced thereby, (iv) mature on the Maturity Date, (v) bear interest as pro-
vided  in Section  1.07 in  respect of  the Loans  evidenced thereby,  (vi) be
subject to  mandatory repayment  as  provided in  Section  4.02 and  (vii)  be
entitled to the benefits of and subject to this Agreement and the other Credit
Documents.

            (c)  Each Bank will  note on  its internal records  the amount  of
each Loan made by it  and each payment in  respect thereof and will, prior  to
any transfer of  any of  its Notes, endorse  on the  reverse side thereof  the
outstanding principal amount of Loans evidenced  thereby.  Failure to make any
such notation shall not  affect the Borrower's obligations in respect  of such
Loans.

            1.06  Pro Rata Borrowings.   All Loans under this  Agreement shall
be made by the Banks pro rata on the basis of their Commitments.  It is under-
stood that no  Bank shall be responsible for any default  by any other Bank in
its  obligation to make Loans hereunder and  that each Bank shall be obligated
to make  the Loans  provided to  be made  by it  hereunder, regardless  of the
failure of any other Bank to fulfill its commitments hereunder.

            1.07  Interest.  (a)  The  unpaid principal  amount  of each  Loan
shall bear interest  from the  date of  the Borrowing  thereof until  maturity
(whether by acceleration or otherwise)  at a rate per annum which shall at all
times be the Applicable Margin plus the relevant Eurodollar Rate.

            (b)  All overdue principal  and, to the  extent permitted by  law,
overdue interest in respect of each  Loan and any other overdue amount payable
hereunder shall bear interest at a rate per annum equal to the Eurodollar Rate
in effect from  time to time plus  the sum of (i)  2% and (ii) the  Applicable
Margin, provided that no  Loan shall bear interest after  maturity (whether by
acceleration or otherwise) at a rate per  annum less than 2% plus the rate  of
interest applicable thereto at maturity.

            (c)  Interest  shall accrue  from and  including  the date  of any
Borrowing  to but  excluding the date  of any  repayment thereof  and shall be
payable (i) on the last day of each Interest Period applicable thereto and, in
the case of  an Interest Period in excess of three  months, on the date occur-
ring three months  after the first day of such Interest Period and (ii) on any
prepayment  (on the amount prepaid),  at maturity (whether  by acceleration or
otherwise) and, after such maturity, on demand.

            (d)  All  computations  of interest  hereunder  shall  be made  in
accordance with Section 12.07(b).

            (e)  The  Agent,  upon  determining  the  interest  rate  for  any
Borrowing of Loans for any Interest Period, shall promptly notify the Borrower
and the Banks thereof.

            1.08  Interest  Periods.  (a)  At the  time the  Borrower  gives a
Notice of  Borrowing in respect  of a  Borrowing (in the  case of the  initial
Interest Period applicable thereto) or prior  to 12:00 Noon (New York time) on
the  third Business  Day  prior  to  the  expiration  of  an  Interest  Period
applicable  to a Borrowing,  it shall  have the right  to elect  by giving the
Agent written notice (or  telephonic notice promptly confirmed in  writing) of
the Interest Period applicable to such Borrowing, which Interest Period shall,
at the  option of the Borrower, be a one,  three or six month period, provided
that:

           (i)  the initial  Interest Period for any  Borrowing shall commence
      on  the  date  of such  Borrowing  and  each  Interest Period  occurring
      thereafter in  respect of such  Borrowing shall commence  on the  day on
      which the next preceding Interest Period expires;

          (ii)  if any Interest  Period begins on a day  for which there is no
      numerically corresponding day  in the calendar month at the  end of such
      Interest Period, such Interest Period shall end on the last Business Day
      of such calendar month;

         (iii)  if any Interest  Period would otherwise expire on a  day which
      is not  a Business Day,  such Interest Period  shall expire on  the next
      succeeding  Business Day,  provided that  if any  Interest Period  would
      otherwise expire on a  day which is not a  Business Day but is a  day of
      the month after which no further Business Day occurs in such month, such
      Interest Period shall expire on the next preceding Business Day;

          (iv)  no Interest Period shall extend beyond the Maturity Date; 

           (v)  no  Interest Period  with respect  to any  Borrowing of  Loans
      under the Facility may be elected that would extend beyond any date upon
      which a Scheduled Commitment Reduction is required to be made in respect
      of  the Facility  if,  after  giving effect  to  the  selection of  such
      Interest  Period, the  aggregate  principal amount  of  Loans under  the
      Facility with Interest Periods  ending after such date would  exceed the
      aggregate  principal amount  of Loans  of the  Facility permitted  to be
      outstanding after such Scheduled Commitment Reduction; 

          (vi)  no Interest  Period in excess of  one month may  be elected at
      any time when a Default or Event  of Default is then in existence if the
      Agent or the  Required Banks have  determined that such  an election  at
      such time would be disadvantageous to the Banks; and

         (vii)  except  as required  by clause  (vi) above,  no more  than six
      Interest Periods of  one month may  be selected by  the Borrower in  any
      calendar year.

            (b)  If upon  the expiration of any Interest  Period, the Borrower
has failed to  elect a new Interest Period to be  applicable to the respective
Borrowing as  provided above, the Borrower  shall be deemed to  have elected a
one month Interest Period.

            1.09  Increased  Costs, Illegality,  etc.  (a)  In the  event that
any Bank  shall have  determined (which  determination shall,  absent manifest
error, be final  and conclusive and  binding upon all  parties hereto) at  any
time, that such Bank shall incur  increased costs or reductions in the amounts
received or receivable  hereunder with respect  to any Loans  (other than  any
increased cost or  reduction in  the amount received  or receivable  resulting
from the imposition of  or a change in the  rate or basis of taxes  or similar
charges) because of  (x) any change since  the date of  this Agreement in  any
applicable law, governmental rule,  regulation, guideline or order (or  in the
interpretation or administration thereof and including the introduction of any
new law or governmental  rule, regulation, guideline  or order) (such as,  for
example, but not limited to,  a change in official reserve  requirements, but,
in all events, excluding  reserves required under Regulation  D to the  extent
included  in  the  computation  of  the  Eurodollar  Rate)  and/or  (y)  other
circumstances occurring after  the date  of this Agreement  and affecting  the
interbank Eurodollar market, then, and in  any such event, such Bank shall (x)
on such date and  (y) within ten Business Days of the date on which such event
no longer  exists, give  notice (by  telephone confirmed  in  writing) to  the
Borrower and to the Agent of  such determination (which notice the Agent shall
promptly transmit to each of the other Banks).  Thereafter the Borrower shall,
subject to Section 1.11(b) (to the extent applicable), pay to  such Bank, upon
written demand therefor, such additional amounts (in the form of an  increased
rate of, or a different  method of calculating, interest or otherwise  as such
Bank  in its sole discretion shall determine)  as shall be required to compen-
sate such  Bank for such increased  costs or reductions in  amounts receivable
hereunder (a  written notice as to  the additional amounts owed  to such Bank,
showing the basis  for the calculation  thereof, submitted to the  Borrower by
such  Bank shall, absent manifest  error, be final  and conclusive and binding
upon  all  parties hereto).  At  any time  that any  Loan  is affected  by the
circumstances described in this  Section 1.09(a), the Borrower may  either (i)
if the affected Loan is then  being made pursuant to a Borrowing, cancel  said
Borrowing by  giving  the  Agent  telephonic  notice  (confirmed  promptly  in
writing) thereof  no later than the  next Business Day after  the Borrower was
notified by  a Bank pursuant to this Section  1.09(a), or (ii) if the affected
Loan  is then outstanding,  upon at least  three Business Days'  notice to the
Agent, and with the consent of the Agent and the other Banks prepay such Loans
and cancel the Commitment of such Bank, provided that if more than one Bank is
affected  at  such time,  then all  affected Banks  must  be treated  the same
pursuant to this Section 1.09(a).

            (b)   If prior to the first day  of any Interest Period, the Agent
shall have determined that, by reason of any changes arising after the date of
this Agreement  affecting the interbank  Eurodollar market, adequate  and fair
means do  not exist for ascertaining the applicable interest rate on the bases
provided within the definition  of Eurodollar Rate, the Agent  shall forthwith
give notice thereof to the Borrower  and the Banks, whereupon, until the Agent
notifies the  Borrower that the  circumstances giving  rise to such  notice no
longer exist, (i) the Total Unutilized Commitment shall not be available to be
borrowed hereunder and  (ii) the rate  of interest applicable to  any affected
Loans  then outstanding shall be  determined in accordance  with the following
provisions  of this Section 1.09(b).  During the 30 days following the date of
any notice given to the Borrower pursuant to the preceding sentence the Agent,
the Banks and the Borrower shall negotiate in good faith in order to arrive at
a mutually acceptable alternative basis for determining the interest rate from
time to  time applicable to the  affected Loans (the "Substitute  Basis").  If
within the 30 days following the date of any such notice to the  Borrower, the
Agent, the  Banks and the Borrower  shall agree upon a  Substitute Basis, such
Substitute  Basis shall be retroactive to and  effective from the first day of
the then  current Interest  Period until  and including the  last day  of such
Interest Period.  If after 30 days from the date of such notice, the Banks and
the Borrower shall  have failed to  agree upon a  Substitute Basis, then  each
Bank shall  certify  in  writing  to  the Borrower  through  the  Agent  (such
certification to be conclusive and binding on all of the parties hereto absent
manifest  error) the interest rate  at which such Bank is  prepared to make or
maintain its affected Loan for such Interest Period, it being  understood that
such Bank's interest rate shall be at a rate per annum equal to the sum of the
Applicable Margin plus a rate which adequately and fairly reflects the cost to
such Bank of  obtaining the funds necessary to maintain  its affected Loan for
such Interest Period,  such interest rate to  be retroactive to and  effective
from  the first  day  of such  Interest  Period.   If no  Substitute  Basis is
established, upon receipt  of notice of the interest rates  at which the Banks
are prepared to make or maintain their respective affected Loans, the Borrower
shall  have the right (i) exercisable upon  ten Business Days' prior notice to
any  Bank through the  Agent (A) to  continue to borrow  Loans at the interest
rates so advised by  the respective Banks (as such rates may be modified, from
time  to time, at  the outset  of each subsequent  Interest Period) or  (B) to
prepay in full the affected Loans of any Bank (at which time the Commitment of
such  Bank  shall be  permanently  reduced  by the  amount  of such  payment),
together  with  accrued interest  thereon at  the  interest rate  certified in
writing by such  Bank as provided above,  whereupon such affected Loans  shall
become due and payable on the date specified by the Borrower in such notice or
(ii) to substitute any Bank pursuant to the provisions of, and subject to  the
conditions contained in, Section 1.12.

            (c)   If,  after the date of  this Agreement, the  adoption of any
applicable law,  rule or regulation, or  any change therein, or  any change in
the interpretation  or administration  thereof by any  governmental authority,
central  bank  or  comparable  agency  charged   with  the  interpretation  or
administration thereof, or compliance  by any Bank (or its  applicable lending
office) with any request or directive (whether or not having the force of law)
of  any  such authority,  central  bank  or comparable  agency  shall  make it
unlawful or impossible for any Bank to make, maintain or fund  any Loan and/or
fulfill its  Commitment  and such  Bank  shall so  notify  the Agent  and  the
Borrower, the  Agent shall forthwith give  notice thereof to  the other Banks.
Upon  the giving of  any such notice  to the Agent  and the Borrower,  (i) the
Commitment of such Bank shall be permanently reduced by an amount equal to the
aggregate principal amount of such Bank's affected Loans, or terminated if all
of such  Bank's Loans are so  affected, and (ii) the Borrower  shall prepay in
full the affected Loans of  such Bank, together with accrued  interest thereon
and,  in  the event  of a  termination of  such  Bank's Commitment,  any other
amounts which may be due to such Bank under this Agreement,  on either (i) the
last day of the then current  Interest Period applicable to each such affected
Loans if such  Bank may lawfully continue  to maintain and fund such  Loans to
such  day  or (ii)  immediately  if such  Bank  may not  lawfully  continue to
maintain and fund such Loans to such day.

            (d)  If any Bank shall have determined that after the date of this
Agreement,  the adoption  or  effectiveness of  any  applicable law,  rule  or
regulation regarding capital adequacy, or any change therein, or any change in
the interpretation  or administration  thereof by any  governmental authority,
central  bank  or  comparable  agency  charged  with  the   interpretation  or
administration thereof, or compliance by such  Bank with any request or direc-
tive regarding  capital adequacy (whether or  not having the force  of law but
with which such  Bank customarily complies  even though the failure  to comply
therewith  would not  be  unlawful) of  any  such authority,  central  bank or
comparable agency, has or would have the effect of reducing the rate of return
on such Bank's capital or assets as a  consequence of its commitments or obli-
gations hereunder  to a level below  that which such Bank  could have achieved
but  for  such  adoption, effectiveness,  change  or  compliance (taking  into
consideration such  Bank's policies with  respect to  capital adequacy),  then
from time to time,  within 15 days after demand  by such Bank (with a  copy to
the Agent),  the Borrower  shall, subject  to Section  1.11(b) (to the  extent
applicable),  pay to  such  Bank such  additional amount  or  amounts as  will
compensate such  Bank for such reduction.  Each Bank, upon determining in good
faith that any  additional amounts will  be payable pursuant  to this  Section
1.09(c), will give prompt written notice thereof to the Borrower, which notice
shall set  forth the  basis of  the calculation  of  such additional  amounts,
although the failure to give any such notice shall not release or diminish any
of  the  Borrower's obligations  to pay  additional  amounts pursuant  to this
Section 1.09(c) upon the subsequent receipt of such notice.

            0.1  Compensation.  The Borrower shall  compensate each Bank, upon
its written request (which  request shall set forth  the basis for  requesting
such  compensation),  for  all  reasonable losses,  expenses  and  liabilities
(including,  without limitation,  any loss,  expense or liability  incurred by
reason of the liquidation or reemployment of deposits or other  funds required
by  such Bank  to fund  its  Loans but  excluding  in any  event  the loss  of
anticipated  profits) which  such Bank  may sustain:   (i)  if for  any reason
(other than a default by such Bank or the Agent) a Borrowing does not occur on
a  date specified therefor in a Notice  of Borrowing (whether or not withdrawn
by the Borrower or deemed withdrawn  pursuant to Section 1.09(a)); (ii) if any
prepayment or repayment  of any of its Loans (including as a result of Section
1.09 or the  last paragraph of Section  9) occurs on a  date which is not  the
last day of an Interest Period  applicable thereto; (iii) if any prepayment of
any of its Loans is not made on  any date specified in a notice of  prepayment
given by the Borrower; or  (iv) as a consequence  of any other default by  the
Borrower to repay its Loans when required by the terms of this Agreement.

            0.2  Change  of Lending  Office;  Limitation on  Indemnities.  (a)
Each Bank agrees  that, upon the  occurrence of any  event giving rise  to the
operation of Section 1.09, 2.05 or 4.04 with respect to such Bank, it will, if
requested by the Borrower,  use reasonable efforts (subject to  overall policy
considerations of such Bank) to designate another lending office for any Loan,
Letters  of Credit or Commitments  affected by such  event, provided that such
designation is made on such terms that such Bank and its lending office suffer
no economic, legal or regulatory disadvantage, with the object of avoiding the
consequence of the  event giving rise  to the operation  of any such  Section.
Nothing in this  Section 1.11 shall affect or postpone  any of the obligations
of the Borrower  or the right of  any Bank provided  in Section 1.09, 2.05  or
4.04.

            (b)  Notwithstanding anything  in this Agreement to  the contrary,
to the extent  any notice required by Section  1.09, 2.05 or 4.04 is  given by
any Bank more than 90 days after such Bank obtained, or reasonably should have
obtained,  knowledge  of  the occurrence  of  the  event  giving rise  to  the
additional costs of the type described in such Section, such Bank shall not be
entitled to  compensation under  Section 1.09,  2.05 or  4.04 for  any amounts
incurred or accruing prior to the giving of such notice to the Borrower.

            0.3  Replacement of Banks.  (x)  Upon the occurrence of any  event
giving rise to the operation of Section 1.09, 2.05 or 4.04 with respect to any
Bank which  results in such Bank  charging to the Borrower  increased costs in
excess  of those  being generally  charged  by the  other Banks  or such  Bank
becoming  incapable of making  or maintaining Loans,  (y) if a  Bank becomes a
Defaulting Bank and/or (z) as provided  in Section 12.12(b), in the case  of a
refusal  by a  Bank to  consent  to a  proposed change,  waiver, discharge  or
termination  with respect  to this  Agreement which  has been approved  by the
Required  Banks, the Borrower shall have the right,  if no Default or Event of
Default then  exists, to replace such  Bank (the "Replaced Bank")  with one or
more other  Eligible Transferee  or Transferees reasonably  acceptable to  the
Agent,  none of which  Transferees shall constitute  a Defaulting Bank  at the
time of such replacement (collectively, the "Replacement Bank"), provided that
(i)  at  the time  of  any  replacement pursuant  to  this  Section 1.12,  the
Replacement  Bank shall  enter  into one  or  more Assignment  and  Assumption
Agreements pursuant to Section 12.04(b) (and with all fees payable pursuant to
said Section  12.04(b) to be paid  by the Replacement Bank)  pursuant to which
the  Replacement Bank  shall acquire  all of  the Commitments  and outstanding
Loans of, and  participations in Letters of Credit by,  the Replaced Bank and,
in connection therewith, shall pay to (x) the Replaced Bank in respect thereof
an amount equal to the sum of (A) an amount equal to the principal of, and all
accrued interest on, all outstanding Loans of the Replaced Bank, (B) an amount
equal to all  Unpaid Drawings that have been funded by (and not reimbursed to)
such  Replaced Bank,  together  with all  then  unpaid interest  with  respect
thereto at such  time and (C) an amount equal to  all accrued, but theretofore
unpaid, Fees owing to the  Replaced Bank pursuant to Section 3.01, and (y) the
Letter of Credit Issuer an amount equal to such Replaced  Bank's Percentage of
any  Unpaid Drawing  (which at  such time  remains an  Unpaid Drawing)  to the
extent such amount was not theretofore  funded by such Replaced Bank, and (ii)
all obligations of the Borrower  owing to the Replaced Bank (other  than those
specifically described in clause (i) above  in respect of which the assignment
purchase price has been, or is concurrently being, paid) shall be paid in full
to such Replaced Bank concurrently with such replacement.  Upon  the execution
of the respective Assignment and Assumption Agreements, the payment of amounts
referred  to in  clauses  (i) and  (ii)  above and,  if  so requested  by  the
Replacement Bank, delivery to the  Replacement Bank of a Note executed  by the
Borrower, the Replacement Bank shall become a  Bank hereunder and the Replaced
Bank  shall cease  to  constitute a  Bank  hereunder, except  with respect  to
indemnification  provisions  applicable  to   the  Replaced  Bank  under  this
Agreement, which shall survive as to such Replaced Bank as described herein. 

            SECTION 2.  Letters of Credit.

            2.01  Letters of  Credit.  (a)  Subject to and upon  the terms and
conditions herein  set forth,  the Borrower  may  request that  the Letter  of
Credit  Issuer at  any time  and from  time to  time on  or after  the Initial
Borrowing  Date  and  prior to  the  Business  Day  immediately preceding  the
Maturity Date  issue, for the  account of the  Borrower and in  support of L/C
Supportable  Obligations, and  subject to  and upon  the terms  and conditions
herein set  forth, the Letter  of Credit Issuer  agrees to issue from  time to
time, irrevocable standby letters of credit denominated in U.S. Dollars or any
other  currency acceptable  to the  Letter of  Credit Issuer  (subject  to the
provisions of  Section 2.01(b))  and in such  form as  may be approved  by the
Letter of  Credit Issuer (each  such standby  letter of credit,  a "Letter  of
Credit" and  collectively, the "Letters of Credit").   Schedule III contains a
description  of all  letters  of  credit  issued  under  the  Existing  Credit
Agreement prior to the Effective Date and which will remain outstanding on the
Effective Date.   Each such letter of credit, including  any extension thereof
(each an "Existing  Letter of Credit") shall  constitute a "Letter of  Credit"
for all purposes of this Agreement and shall  be deemed issued for purposes of
Sections 2.04 and 3.01 on the Effective Date.

            (b)  Whenever the  Letter  of Credit  Issuer  issues a  Letter  of
Credit  in  a  currency  other  than   U.S.  Dollars,  the  Letter  of  Credit
Outstandings  relating  to  such  Letter  of  Credit  at such  time  shall  be
calculated on the basis of the U.S. Dollar Equivalent of the Stated  Amount of
such  Letter of Credit.   Any U.S. Dollar  Equivalent established according to
the  preceding  sentence shall  remain  in  effect  until  such  date  as  the
calculation of the U.S. Dollar Equivalent determined as above, if made on such
date, would yield a U.S. Dollar Equivalent which varies by  greater than 10.0%
from the  U.S. Dollar Equivalent then in  effect, at which time  the Letter of
Credit  Outstandings  shall be  adjusted to  reflect  the current  U.S. Dollar
Equivalent  of  the  Stated  Amount of  such  Letter  of  Credit.   Subsequent
adjustments shall then be made on any date on which the current calculation of
the U.S. Dollar Equivalent would  yield a result which varies by  greater than
10.0% from the U.S. Dollar Equivalent then in effect.

            (c)  Notwithstanding the foregoing, (i)  no Letter of Credit shall
be  issued, the Stated  Amount of  which, when added  to the  Letter of Credit
Outstandings (exclusive  of Unpaid Drawings which  are repaid on the  date of,
and  prior to the issuance of, the respective  Letter of Credit) at such time,
would  exceed  either (x)  $20,000,000  or (y)  when  added  to the  aggregate
principal amount of all  Loans made by Non-Defaulting Banks  then outstanding,
the Adjusted  Total Commitment at  such time; and  (ii) each Letter  of Credit
shall  have  an  expiry  date  occurring  not  later  than  the  Business  Day
immediately preceding the Maturity Date.

            2.02  Letter of Credit Requests; Request for Issuance of Letter of
Credit.  (a)  Whenever  it  desires that  a Letter  of  Credit be  issued, the
Borrower  shall give the Letter of Credit  Issuer written notice (including by
way of telecopier) in the form of Exhibit C prior to 1:00 P.M. (New York time)
at least three Business  Days (or such shorter period as may  be acceptable to
the Letter  of Credit Issuer)  prior to the  proposed date of  issuance (which
shall be a Business Day) (each a "Letter of Credit Request"),  which Letter of
Credit Request shall  include any documents that  the Letter of  Credit Issuer
customarily requires in  connection therewith.   The Letter  of Credit  Issuer
shall promptly notify each Bank of each Letter of Credit Request.

            (b)  The  Letter of  Credit  Issuer shall,  on  the date  of  each
issuance of a Letter of Credit by  it, give each Bank and the Borrower written
notice of the issuance of such Letter of Credit.

            2.03  Agreement  to  Repay  Letter  of  Credit Payments.  (a)  The
Borrower hereby agrees  to reimburse the  Letter of Credit  Issuer, by  making
payment at  the Payment Office,  for any payment  or disbursement made  by the
Letter of Credit Issuer  under any Letter of Credit (each  such amount so paid
or  disbursed until reimbursed, an "Unpaid Drawing") immediately after, and in
any  event on  the date on  which the  Borrower is  notified by the  Letter of
Credit Issuer of such payment  or disbursement with interest on the  amount so
paid or disbursed by the Letter of Credit Issuer, to the extent not reimbursed
prior  to  1:00  P.M.  (New  York  time)  on  the  date  of  such  payment  or
disbursement,  from  and  including the  date  paid  or disbursed  to  but not
including the date  the Letter of  Credit Issuer is  reimbursed therefor at  a
rate per annum  which shall be the Applicable Margin  plus the Eurodollar Rate
as  in effect on the date of such  notice of payment or disbursements (plus an
additional 2% per annum  if not reimbursed by the third Business Day after the
date of  such notice  of payment  or disbursement), such  interest also  to be
payable on demand.

            (b)  The  Borrower's   obligation  under  this   Section  2.03  to
reimburse  the Letter  of  Credit  Issuer  with  respect  to  Unpaid  Drawings
(including,   in  each   case,  interest  thereon)   shall  be   absolute  and
unconditional  under any and all circumstances and irrespective of any setoff,
counterclaim  or defense to  payment which the  Borrower may have  or have had
against   the  Letter  of  Credit  Issuer  or  any  Bank,  including,  without
limitation, any defense  based upon the failure of any  drawing under a Letter
of  Credit to  conform to the  terms of the  Letter of Credit  (other than the
failure  of  the  Letter of  Credit  Issuer  to determine  that  any documents
required  to be delivered under such Letter  of Credit have been delivered and
that  they substantially comply  on their face  with the  requirements of such
Letter  of Credit) or any non-application or misapplication by the beneficiary
of  the proceeds of such  drawing; provided, however,  that the Borrower shall
not be  obligated to reimburse  the Letter of  Credit Issuer for  any wrongful
payment  made by  the Letter of  Credit Issuer under  a Letter of  Credit as a
result  of  acts  or  omissions  constituting  willful  misconduct  or   gross
negligence on the part of the Letter of Credit Issuer.

            2.04  Letter of Credit Participations.  (a)  Immediately  upon the
issuance by the Letter of Credit Issuer of any Letter of Credit, the Letter of
Credit Issuer shall be deemed to have sold and transferred to each other Bank,
and  each such Bank  (each a  "Participant") shall  be deemed  irrevocably and
unconditionally  to  have purchased  and received  from  the Letter  of Credit
Issuer, without recourse or warranty, an undivided interest and participation,
to the  extent of such Bank's  Adjusted Percentage, in such  Letter of Credit,
each  substitute  letter  of credit,  each  drawing  made  thereunder and  the
obligations  of  the  Borrower  under  this  Agreement  with  respect  thereto
(although the Letter of Credit  Fee shall be payable directly to the Agent for
the account of  the Banks as provided in Section  3.01(b) and the Participants
shall  have no  right  to receive  any portion  of  any Facing  Fees) and  any
security therefor  or guaranty  pertaining thereto.   Upon  any change in  the
Commitments  or Adjusted Percentages of the Banks pursuant to Section 12.04(b)
or upon a Bank  Default, it is  hereby agreed that, with  respect to all  out-
standing Letters of  Credit and Unpaid  Drawings, there shall be  an automatic
adjustment  to the participations pursuant to this Section 2.04 to reflect the
new Adjusted Percentages of the  assigning and assignee Bank or of  all Banks,
as the case may be. 

            (b)  In determining whether to pay under any Letter of Credit, the
Letter  of  Credit Issuer  shall  not  have  any obligation  relative  to  the
Participants  other  than  to determine  that  any  documents  required to  be
delivered  under  such Letter  of Credit  have  been delivered  and  that they
substantially comply  on their face  with the  requirements of such  Letter of
Credit.   Any action  taken or  omitted to be  taken by  the Letter  of Credit
Issuer under  or in connection with any Letter of  Credit, if taken or omitted
in the absence of gross negligence or willful misconduct, shall not create for
the Letter of Credit Issuer any resulting liability to the Participants.

            (c)  In the event that the Letter of  Credit Issuer makes any pay-
ment under  any Letter of  Credit and the  Borrower shall not  have reimbursed
such amount  in  full to  the  Letter of  Credit  Issuer pursuant  to  Section
2.03(a), the Letter of Credit Issuer shall promptly notify each Participant of
such failure, and each  Participant shall promptly and unconditionally  pay to
the  Letter  of  Credit Issuer,  the  amount  of  such Participant's  Adjusted
Percentage of  such payment in U.S.  Dollars and in same  day funds; provided,
however, that no Participant shall be obligated to pay to the Letter of Credit
Issuer  its Adjusted Percentage of  such unreimbursed amount  for any wrongful
payment made  by the Letter  of Credit  Issuer under a  Letter of Credit  as a
result  of  acts  or  omissions  constituting   willful  misconduct  or  gross
negligence  on the  part of  the Letter  of Credit  Issuer.   If the  Agent so
notifies any  Participant required to fund an Unpaid Drawing under a Letter of
Credit  prior to  12:00  Noon  (New  York  time) on  any  Business  Day,  such
Participant  shall  make  available  to  the  Letter  of  Credit  Issuer  such
Participant's  Adjusted Percentage  of  the amount  of  such payment  on  such
Business Day in same  day funds.  If and to the  extent such Participant shall
not have  so made its Adjusted Percentage of the amount of such Unpaid Drawing
available to  the Letter of Credit  Issuer, such Participant agrees  to pay to
the Letter  of Credit Issuer, forthwith  on demand such  amount, together with
interest thereon, for each  day from such date  until the date such amount  is
paid to the Letter of  Credit Issuer at the overnight Federal  Funds Effective
Rate.   The failure  of any  Participant to make  available to  the Letter  of
Credit Issuer  its Adjusted Percentage of any  Unpaid Drawing under any Letter
of  Credit shall not relieve any other Participant of its obligation hereunder
to make  available to the Letter  of Credit Issuer its  Adjusted Percentage of
any payment  under any  Letter of  Credit on the  date required,  as specified
above, but  no Participant shall be  responsible for the failure  of any other
Participant  to make  available  to the  Letter  of Credit  Issuer such  other
Participant's Adjusted Percentage of any such payment.

            (d)  Whenever  the Letter of Credit Issuer receives a payment of a
reimbursement obligation as to which the Agent has received for the account of
the  Letter of Credit  Issuer any payments  from the  Participants pursuant to
clause (c)  above, the Letter of  Credit Issuer shall pay  to each Participant
which has  paid its Adjusted  Percentage thereof, in  Dollars and in  same day
funds,  an amount  equal  to such  Participant's  Adjusted Percentage  of  the
principal  amount  thereof  and interest  thereon  accruing  at the  overnight
Federal  Funds   Effective  Rate  after   the  purchase   of  the   respective
participations. 

            (e)  The obligations of  the Participants to make  payments to the
Letter of Credit Issuer with respect to Letters of Credit shall be irrevocable
and  not subject  to  counterclaim,  set-off or  other  defense  or any  other
qualification or exception whatsoever  (provided that no Participant shall  be
required to  make payments resulting from the  Letter of Credit Issuer's gross
negligence or  willful misconduct) and  shall be made  in accordance with  the
terms and  conditions of this  Agreement under  all circumstances,  including,
without limitation, any of the following circumstances:

           (i)  any lack  of validity or  enforceability of  this Agreement or
      any of the other Credit Documents;

          (ii)  the existence  of any  claim, set-off, defense or  other right
      which the Borrower may have at any time against a beneficiary named in a
      Letter of Credit, any transferee of any Letter of Credit  (or any Person
      for whom  any such  transferee may  be acting), the  Agent, any  Bank or
      other Person, whether in  connection with this Agreement, any  Letter of
      Credit,   the  transactions   contemplated  herein   or  any   unrelated
      transactions  (including any underlying transaction between the Borrower
      and the beneficiary named in any such Letter of Credit);

         (iii)  any draft,  certificate or other document  presented under the
      Letter of  Credit proving  to be forged,  fraudulent, or invalid  in any
      respect  or  any statement  therein being  untrue  or inaccurate  in any
      respect;

          (iv)  the  surrender   or  impairment   of  any  security   for  the
      performance  or observance  of any  of the  terms of  any of  the Credit
      Documents; or

           (v)  the occurrence of any Default or Event of Default.

            2.05  Increased Costs.  If  at  any time  after  the date  of  the
Agreement,  the adoption  or  effectiveness of  any  applicable law,  rule  or
regulation, or  any change  therein, or  any change  in the  interpretation or
administration  thereof  by  any   governmental  authority,  central  bank  or
comparable agency  charged with the interpretation  or administration thereof,
or compliance by the Letter of Credit  Issuer or any Bank with any request  or
directive (whether or not  having the force  of law but  with which such  Bank
customarily complies even though  the failure to comply therewith would not be
unlawful)  by  any such  authority, central  bank  or comparable  agency shall
either (i) impose,  modify or  make applicable any  reserve, deposit,  capital
adequacy or similar requirement against Letters of Credit issued by the Letter
of Credit Issuer or such Bank's participation therein, or (ii) shall impose on
the Letter  of Credit Issuer or  any Bank any other  conditions affecting this
Agreement, any Letter of Credit or  such Bank's participation therein; and the
result of any of the foregoing is to increase the cost to the Letter of Credit
Issuer or  such Bank of issuing, maintaining or participating in any Letter of
Credit,  or to  reduce the  amount of any  sum received  or receivable  by the
Letter of Credit Issuer or such  Bank hereunder (other than any increased cost
or  reduction in the amount received or  receivable resulting from the imposi-
tion of or a change  in the rate or basis of taxes or  similar charges), then,
upon demand  to the Borrower by  the Letter of  Credit Issuer or such  Bank (a
copy of which notice shall be sent by the Letter of Credit Issuer or such Bank
to  the Agent), the Borrower shall, subject  to Section 1.11(b) (to the extent
applicable), pay to  the Letter of Credit Issuer or  such Bank such additional
amount  or amounts as will compensate the Letter of Credit Issuer or such Bank
for such increased cost or reduction.  A certificate submitted to the Borrower
by the  Letter of Credit Issuer  or such Bank, as  the case may be  (a copy of
which certificate shall be sent by the Letter of Credit Issuer or such Bank to
the Agent), setting forth the  basis for the determination of  such additional
amount or amounts necessary to compensate  the Letter of Credit Issuer or such
Bank  as aforesaid  shall be  conclusive and  binding on  the Borrower  absent
manifest error, although the failure to deliver any such certificate shall not
release  or diminish  any  of the  Borrower's  obligations to  pay  additional
amounts pursuant to this Section 2.05 upon the subsequent receipt thereof.

            2.06  Indemnities.   The Borrower  hereby agrees to  reimburse and
indemnify the Letter of Credit Issuer for and against any and all liabilities,
obligations,  losses, damages, penalties,  claims, actions,  judgments, suits,
costs, expenses  or disbursements  of whatsoever kind  or nature which  may be
imposed  on, asserted against  or incurred by  the Letter of  Credit Issuer in
performing its respective duties in any way relating to or  arising out of its
issuance of Letters of Credit; provided  that the Borrower shall not be liable
for any portion of such  liabilities, obligations, losses, damages, penalties,
actions, judgments, suits, costs, expenses or disbursements resulting from the
Letter of  Credit Issuer's  gross negligence  or willful  misconduct.  To  the
extent  the Letter of  Credit Issuer is  not indemnified by  the Borrower, the
Participants  will reimburse  and indemnify  the Letter  of Credit  Issuer, in
proportion  to their respective "percentages" of the Total Commitment, for and
against  any and  all  liabilities, obligations,  losses, damages,  penalties,
claims,  actions,  judgments,  suits,  costs,  expenses  or  disbursements  of
whatsoever  kind or  nature  which  may be  imposed  on,  asserted against  or
incurred by the Letter of Credit Issuer in performing its respective duties in
any way  relating to  or arising  out of  its issuance  of Letters of  Credit;
provided that no Participants shall be liable for any portion of such liabili-
ties,  obligations, losses,  damages,  penalties,  actions, judgments,  suits,
costs,  expenses or disbursements resulting from the Letter of Credit Issuer's
gross negligence or willful misconduct.

            SECTION 3.  Fees; Commitments.

            3.01  Fees.  (a)  The  Borrower  agrees  to  pay to  the  Agent  a
commitment commission ("Commitment  Commission") pro rata  for the account  of
each Non-Defaulting Bank for the period from  and including the Effective Date
to, but  not including, the  date the  Total Commitment  has been  terminated,
which Commitment Commission  shall be equal to   of 1%  per annum, computed at
such  rate  for each  day,  on  the daily  amount  of  such Bank's  Unutilized
Commitment.  Such Commitment Commission shall be due and payable in arrears on
the first day  of each January, April, July  and October and on the  date upon
which the Total Commitment is terminated.

            (b)  The  Borrower agrees to pay  to the Agent  for the account of
each Non-Defaulting Bank  pro rata on the  basis of their  respective Adjusted
Percentages,  a fee in respect of each Letter of Credit (the "Letter of Credit
Fee") computed at a rate  per annum equal to 1% of the daily  Stated Amount of
such Letter of Credit.  Accrued Letter of Credit Fees shall be due and payable
quarterly in arrears on the first day of each January, April, July and October
of  each year and on the date after  the Total Commitment is terminated and no
Letters of Credit remain outstanding.

            (c)  The Borrower agrees to pay  to the Letter of Credit Issuer  a
fee in  respect of  each Letter  of Credit  issued  by it  (the "Facing  Fee")
computed at the rate of 1/4 of 1% per annum on the daily Stated Amount of such
Letter of Credit.   Accrued Facing Fees shall be due and  payable quarterly in
arrears on the first day of each January, April, July and October of each year
and on the  date after the  Total Commitment is  terminated and no Letters  of
Credit remain outstanding.

            (d)  The Borrower agrees to  pay directly to the Letter  of Credit
Issuer upon  request the amount  of any  charges or expenses  incurred by  the
Letter of Credit  Issuer in  connection with  any confirmation  of Letters  of
Credit by  local banks  requested by  the Borrower or  any beneficiary  of any
Letter of Credit.

            (e)  The  Borrower shall  pay  to the  Agent  (x) on  the  Initial
Borrowing Date for its own  account and/or for distribution to the  Banks such
Fees as heretofore agreed in writing by the Borrower and the Agent and (y) for
its own account such  other fees as agreed to in  writing between the Borrower
and the Agent, when and as due.

            (f)  All  computations of  Fees shall  be made in  accordance with
Section 12.07(b).

            3.02  Voluntary  Reduction of  Commitments.  Upon at  least thirty
Days' prior  written notice (or telephonic notice confirmed in writing) to the
Agent at its Notice Office (which notice the Agent shall  promptly transmit to
each of  the Banks),  the Borrower  shall have the  right, without  premium or
penalty,  to terminate or  partially reduce  the Total  Unutilized Commitment,
provided  that (w)  any such  termination shall  apply to  proportionately and
permanently  reduce the Commitment of  each Bank, (x)  no such reduction shall
reduce any Non-Defaulting Bank's Commitment to an amount that is less than the
sum of  (A) the outstanding Loans of  such Bank plus (B)  such Bank's Adjusted
Percentage  of Letter of Credit  Outstandings, (y) any  partial reduction pur-
suant to this Section 3.02  shall be in the amount of at  least $5,000,000 and
(z)  any  such reduction  shall  reduce  the  remaining  Scheduled  Commitment
Reductions  pro  rata  based  on  the  then  remaining  amounts  of  Scheduled
Commitment Reductions.

            3.03  Mandatory Adjustments of  Commitments, etc.  (a)  The  Total
Commitment shall terminate on the  earlier of (i) the Maturity Date,  (ii) May
30, 1996, unless the  Effective Date has occurred  on or before such date  and
(iii) unless  the Required  Banks otherwise  consent, the  date  on which  any
Change of Control occurs.

            (b)  In  addition to  any  other mandatory  commitment  reductions
pursuant to  this  Section 3.03,  on  each date  set  forth below,  the  Total
Commitment shall  be permanently reduced by the amount set forth opposite such
date (each such  reduction, as same may be further  reduced in accordance with
Sections 3.02 and 3.03(d), a "Scheduled Commitment Reduction"):

                     Date                          Amount

             May 1, 1997                        $8,500,000
             November 1, 1997                   $8,500,000

             May 1, 1998                        $8,500,000

             November 1, 1998                   $8,500,000
             May 1, 1999                        $8,500,000

             November 1, 1999                   $8,500,000
             May 1, 2000                        $8,500,000

             November 1, 2000                   $8,500,000

             Maturity Date                    Remaining amount
                                                  of Total
                                                 Commitment

            (c)  In addition  to  any other  mandatory  commitment  reductions
pursuant  to this  Section 3.03,  on the  Business Day  following the  date of
receipt thereof  by the Borrower  and/or any of  its Subsidiaries of  the Cash
Proceeds  from any Collateral Disposition, the amount of Total Commitment then
in  effect  shall be  permanently  reduced by  an  amount equal  to  the Total
Commitment then in  effect multiplied by the percentage set  forth on Annex IV
hereto adjacent to the name  of the Mortgaged Rig which is the subject of such
Collateral  Disposition  under  the   heading  "Percentage  Reduction".    Any
reduction  to  the Total  Commitment pursuant  to  this Section  3.03(c) shall
reduce the remaining  Scheduled Commitment  Reductions pro rata  based on  the
then remaining amounts of Scheduled Commitment Reductions.  

            (d)  In  the case of any Collateral Disposition involving the Jack
Bates,  the Total  Commitment shall terminate  on the  date which  is ten days
thereafter and  all Loans  and other  obligations hereunder  outstanding shall
become  due and  payable  on such  date  and the  Borrower  shall  pay to  the
Collateral Agent at the Payment  Office an amount of cash equal to  the Stated
Amount of  all Letters of  Credit outstanding to be  held as security  for the
Borrower's obligations in respect thereof.

            (e)  Each  reduction  of the  Total  Commitment  pursuant to  this
Section 3.03 shall apply proportionately to the Commitment of each Bank.

            SECTION 4.  Payments.

            4.01  Voluntary Prepayments.  The Borrower shall have the right to
prepay Loans  in whole or  in part, without  premium or penalty,  from time to
time on  the following terms and conditions:   (i) the Borrower shall give the
Agent  at the  Payment Office  written notice  (or telephonic  notice promptly
confirmed in  writing) of its intent  to prepay the Loans, the  amount of such
prepayment  and the specific Borrowing  or Borrowings pursuant  to which made,
which  notice shall be given by the Borrower at least five Business Days prior
to the  date of  such  prepayment of  Loans, which  notice  shall promptly  be
transmitted by the Agent to each of the Banks; (ii) each partial prepayment of
any Borrowing shall be in an aggregate principal amount of at least $1,000,000
and, if greater in an integral multiple of $100,000, provided  that no partial
prepayment of Loans  made pursuant to a  Borrowing shall reduce  the aggregate
principal amount  of the Loans  outstanding pursuant  to such Borrowing  to an
amount less than the Minimum Borrowing Amount; (iii) Loans prepaid pursuant to
this  Section 4.01 on any date other than  the last day of the Interest Period
applicable thereto shall be subject to Section 1.10; and (iv) each  prepayment
in respect of any Loans made pursuant to a Borrowing shall be applied pro rata
among  the  Banks  which made  such  Loans,  provided that  at  the Borrower's
election in connection  with any prepayment of Loans pursuant  to this Section
4.01, such prepayment shall not be applied to any Loans of a Defaulting Bank. 

            4.02  Mandatory Prepayments.

            (A)  Requirements: 

            (a)  (i) If  on  any date  the  sum of  the  aggregate outstanding
principal  amount of  Loans made  by  Non-Defaulting Banks  and the  Letter of
Credit Outstandings exceeds the  Adjusted Total Commitment as then  in effect,
the Borrower shall repay on such date the principal of Loans of Non-Defaulting
Banks, in  an aggregate amount equal to such excess.   If, after giving effect
to  the  repayment  of all  outstanding  Loans  of  Non-Defaulting Banks,  the
aggregate amount of Letter  of Credit Outstandings exceeds the  Adjusted Total
Commitment  then in effect, the  Borrower shall pay to the  Agent an amount in
cash and/or  Cash Equivalents equal to such excess (up to the aggregate amount
of the  Letter of Credit Outstandings at  such time) and the  Agent shall hold
such  payment  as  security for  the  obligations  of  the Borrower  hereunder
pursuant to a cash  collateral agreement to be  entered into in form  and sub-
stance reasonably  satisfactory  to  the Agent  (which  shall  permit  certain
investments  in Cash Equivalents satisfactory to the Agent, until the proceeds
are applied to the secured obligations).

            (ii)  If on any date the aggregate outstanding principal amount of
the Loans  made by a Defaulting Bank exceeds the Commitment of such Defaulting
Bank, the Borrower shall repay the principal of Loans of  such Defaulting Bank
in an amount equal to such excess.

            (b)  Notwithstanding  anything to the contrary contained elsewhere
in  this Agreement, all then outstanding Loans shall  be repaid in full on the
Maturity Date.

            (c)  On the date  on which  any Change of  Control occurs,  unless
otherwise  agreed by the Required  Banks, the outstanding  principal amount of
the Loans, if any, shall become due and payable in full.

            (d)  On  the  date  which   is  ten  days  after  any   Collateral
Disposition  involving the Jack Bates, the outstanding principal amount of the
Loans shall become due and payable in full.

            (B)  Application:

            With respect to each prepayment of Loans required by Section 4.02,
the  Borrower may designate the  specific Borrowing or  Borrowings pursuant to
which made, provided that each prepayment of  any Loans made by Non-Defaulting
Banks  pursuant to  a  Borrowing shall  be  applied pro  rata  among the  Non-
Defaulting Banks which  made such Loans.   In the absence of  a designation by
the Borrower  as described in the preceding sentence, the Agent shall, subject
to the above, make such designation in its sole discretion with a view, but no
obligation, to minimize  breakage costs  owing under Section  1.10.   Notwith-
standing the foregoing provisions of this Section 4.02(B), if at  any time the
mandatory  prepayment of Loans pursuant to Section 4.02(A) above would result,
after giving  effect  to  the procedures  set  forth above,  in  the  Borrower
incurring breakage costs under Section 1.10 as a result of Loans being prepaid
other  than on  the last  day of  an Interest  Period applicable  thereto (the
"Affected  Loans"), then  the Borrower  may in  its sole  discretion initially
deposit a  portion (up to 100%) of the  amounts that otherwise would have been
paid  in respect of the Affected  Loans with the Agent  (which deposit must be
equal in amount to the  amount of the Affected Loans not  immediately prepaid)
to be held as security for the obligations of the  Borrower hereunder pursuant
to  a cash  collateral agreement  to  be entered  into in  form and  substance
reasonably  satisfactory  to  the  Agent  and  shall provide  for  investments
satisfactory to  the Agent and the  Borrower, with such cash  collateral to be
directly  applied upon the first occurrence (or occurrences) thereafter of the
last  day of  an Interest  Period applicable  to the  relevant Loans  (or such
earlier  date or  dates as shall  be requested  by the Borrower),  to repay an
aggregate  principal  amount of  such Loans  equal to  the Affected  Loans not
initially  prepaid pursuant to this sentence.  Notwithstanding anything to the
contrary  contained  in  the   immediately  preceding  sentence,  all  amounts
deposited as  cash collateral pursuant  to the immediately  preceding sentence
shall  be held for the sole  benefit of the Banks  whose Loans would otherwise
have been immediately  prepaid with the amounts deposited and  upon the taking
of any action by the Agent or the Banks pursuant to the remedial provisions of
Section  9,  any amounts  held  as cash  collateral  pursuant to  this Section
4.02(B) shall, subject to  the requirements of applicable law,  be immediately
applied to the Loans.

            1.01  Method  and   Place  of   Payment.    Except   as  otherwise
specifically  provided herein, all payments under this Agreement shall be made
to the  Agent for the  ratable (based  on its pro  rata share) account  of the
Banks entitled thereto, not later  than 1:00 P.M. (New York time)  on the date
when due and shall be made in immediately available funds and in lawful  money
of  the United States  of America at  the Payment Office,  it being understood
that written notice by the  Borrower to the Agent  to make a payment from  the
funds in the  Borrower's account at  the Payment Office  shall constitute  the
making of such payment to the extent of such funds held in such account.   Any
payments under  this Agreement which are  made later than 1:00  P.M. (New York
time) shall be deemed  to have been made on the  next succeeding Business Day.
Whenever any payment  to be made hereunder shall be stated  to be due on a day
which is not a  Business Day, the  due date thereof shall  be extended to  the
next  succeeding  Business Day  and, with  respect  to payments  of principal,
interest  shall be  payable during  such extension  at the applicable  rate in
effect immediately prior to such extension.

            1.02  Net  Payments.  (a)  All  payments   made  by  the  Borrower
hereunder or under any Note will be made without setoff, counterclaim or other
defense.  Except  as provided in  Section 4.04(b), all  such payments will  be
made free and clear of, and  without deduction or withholding for, any present
or future taxes, levies,  imposts, duties, fees, assessments or  other charges
of  whatever nature  now or hereafter  imposed by  any jurisdiction  or by any
political subdivision or taxing  authority thereof or therein with  respect to
such  payments (but  excluding, except  as provided  in the  second succeeding
sentence, any tax imposed on or measured by the net income or net profits of a
Bank pursuant to  the laws  of the jurisdiction  in which it  is organized  or
managed and controlled  or the jurisdiction in  which the principal office  or
applicable  lending office of such Bank  is located or any subdivision thereof
or  therein) and all interest,  penalties or similar  liabilities with respect
thereto  (all   such  non-excluded  taxes,  levies,   imposts,  duties,  fees,
assessments  or other charges being referred to  collectively as "Taxes").  If
any Taxes are so levied or imposed, the Borrower agrees to pay the full amount
of such  Taxes, and such additional  amounts, if any,  as may be  necessary so
that every payment of all amounts due under this  Agreement or under any Note,
after withholding or  deduction for or  on account of  any Taxes, will  not be
less than the amount  provided for herein or in such Note.  If any amounts are
payable  by  the Borrower  in  respect  of  Taxes  pursuant to  the  preceding
sentence, the Borrower agrees to reimburse each Bank, upon the written request
of  such Bank,  for taxes  imposed on  or measured  by the  net income  or net
profits of  such Bank pursuant  to the laws  of the jurisdiction  in which the
principal office or applicable lending office of such Bank is located or under
the laws  of  any  political  subdivision  or taxing  authority  of  any  such
jurisdiction in which  the principal  office or applicable  lending office  of
such Bank  is located  and for  any withholding  of taxes  as such  Bank shall
determine  are payable  by, or  withheld from,  such Bank  in respect  of such
amounts so  paid  to or  on  behalf of  such Bank  pursuant  to the  preceding
sentence and  in respect  of any amounts  paid to  or on  behalf of such  Bank
pursuant to this sentence.   The Borrower will furnish to the  Agent within 45
days after the date the payment of any Taxes is due pursuant to applicable law
certified copies of tax receipts evidencing such payment by the Borrower.  The
Borrower agrees to  indemnify and hold harmless each  Bank, and reimburse such
Bank  upon  its written  request, for  the amount  of any  Taxes so  levied or
imposed and paid by such Bank.

            (b)  Each Bank that is not a United States person (as such term is
defined in Section 7701(a)(30) of the  Code) agrees to deliver to the Borrower
and the  Agent on or prior to the date of this  Agreement, or in the case of a
Bank  that is an  assignee or transferee  of an interest  under this Agreement
pursuant to  Section 1.12 or 12.04  (unless the respective Bank  was already a
Bank hereunder immediately prior to such assignment or  transfer), on the date
of  such assignment or  transfer to such  Bank, (i) two  accurate and complete
original signed copies of Internal Revenue Service Form 4224 or  1001 (or suc-
cessor  forms) certifying to such  Bank's entitlement to  a complete exemption
from United States withholding tax  with respect to payments to be  made under
this Agreement and under any Note, or (ii) if  the Bank is not a "bank" within
the meaning  of Section 881(c)(3)(A)  of the  Code and  cannot deliver  either
Internal Revenue Service Form 1001 or 4224 pursuant to clause (i) above, (x) a
certificate substantially  in the form of  Exhibit D (any  such certificate, a
"Section 4.04(b)(ii) Certificate") and  (y) two accurate and complete original
signed  copies  of  Internal Revenue  Service  Form  W-8  (or successor  form)
certifying  to such  Bank's entitlement  to a  complete exemption  from United
States withholding tax  with respect to payments of interest  to be made under
this Agreement  and under any Note.   In addition, each Bank  agrees that from
time to time after the date of this Agreement,  when a lapse in time or change
in circumstances  renders the previous certification obsolete or inaccurate in
any material respect, it  will deliver to the Borrower  and the Agent two  new
accurate  and complete original signed copies of Internal Revenue Service Form
4224 or 1001, or Form W-8 and  a Section 4.04(b)(ii) Certificate, as the  case
may  be, and  such other  forms as  may  be required  in order  to confirm  or
establish  the  entitlement of  such Bank  to  a continued  exemption  from or
reduction in United States withholding tax with respect to payments under this
Agreement and  any Note, or it  shall immediately notify the  Borrower and the
Agent   of  its   inability  to   deliver  any   such  Form   or  Certificate.
Notwithstanding  anything to  the contrary  contained in Section  4.04(a), but
subject to Section  12.04(b) and the immediately  succeeding sentence, (x) the
Borrower shall be entitled, to  the extent it is required to do so  by law, to
deduct or  withhold income or similar  taxes imposed by the  United States (or
any  political subdivision or taxing authority thereof or therein) from inter-
est, fees or other amounts payable hereunder for the account of any Bank which
is not a United States  person (as such term is defined in Section 7701(a)(30)
of the Code) for U.S. Federal income tax purposes to the extent that such Bank
has not  provided to  the Borrower  U.S. Internal  Revenue Service  Forms that
establish  a complete exemption from such deduction or withholding and (y) the
Borrower shall not be obligated pursuant to Section 4.04(a) hereof to gross-up
payments to be made to a Bank in respect of income or similar taxes imposed by
the United  States  if (I)  such Bank  has not  provided to  the Borrower  the
Internal  Revenue  Service  Forms required  to  be  provided  to the  Borrower
pursuant to this Section 4.04(b) or (II) in the case of a payment,  other than
interest, to  a Bank described in clause  (ii) above, to the  extent that such
Forms do not establish  a complete exemption  from withholding of such  taxes.
Notwithstanding anything  to the contrary contained in  the preceding sentence
or elsewhere in this Section 4.04 and except as set forth in Section 12.04(b),
the Borrower  agrees to pay additional  amounts and to indemnify  each Bank in
the manner set forth in Section 4.04(a) (without regard to the identity of the
jurisdiction requiring the deduction or withholding) in respect of any amounts
deducted or  withheld by it as described in the immediately preceding sentence
as a result of any changes after  the date of this Agreement in any applicable
law,  treaty, governmental  rule, regulation,  guideline or  order, or  in the
interpretation  thereof, relating to the deducting or withholding of income or
similar Taxes,  provided such Bank shall provide to the Borrower and the Agent
any  reasonably available applicable IRS  tax form (reasonably  similar in its
simplicity and lack  of detail to IRS Form 1001)  necessary or appropriate for
the exemption or reduction in the rate of such U.S. federal withholding tax.

            (c)  The  provisions of  this  Section 4.04  shall  be subject  to
Section 1.11(b) (to the extent applicable).

            SECTION 5.  Conditions Precedent.  The obligation of the  Banks to
make each Loan hereunder, and the obligation of the Letter of Credit Issuer to
issue Letters of Credit hereunder, is subject, at the time of each such Credit
Event (except as otherwise hereinafter indicated), to the satisfaction of each
of the following conditions:

            5.01  Execution  of  Agreement.  On  or   prior  to  the   Initial
Borrowing Date, (i)  the Effective  Date shall  have occurred  as provided  in
Section  12.10 and (ii) there  shall have been delivered  to the Agent for the
account of each Bank the appropriate Note executed by the Borrower, and in the
amount, maturity and as otherwise provided herein.

            5.02  No  Default; Representations  and Warranties;  No Collateral
Disposition of  Jack Bates.  At the time  of each Credit Event  and also after
giving  effect thereto, (i) there shall exist  no Default or Event of Default,
(ii)  all  representations and  warranties contained  herein  or in  the other
Credit Documents  in effect  at such  time shall  be true  and correct  in all
material  respects with  the same  effect as  though such  representations and
warranties had been made on and as of the date of such Credit Event (except to
the extent that  such representations  and warranties expressly  relate to  an
earlier date,  in which case  they shall be  true and correct  in all material
respects as of such earlier  date) and (iii) there shall not have occurred any
Collateral Disposition with respect to the US Rig Jack Bates.

            5.03  Officer's Certificate.  On  the Initial Borrowing  Date, the
Agent  shall have  received  a  certificate  dated such  date  signed  by  the
President or any Vice President of the Borrower stating that there has been no
Material Adverse  Change in  the financial  condition of  the  Borrower or  of
Holdings  and its Subsidiaries  taken as  a whole since  the date  of the last
audited financial statements provided by Holdings or the Borrower to the Agent
and that all of the applicable  conditions set forth in Sections 5.02, 5.08(a)
and 5.20 exist as of such date.

            5.04  Opinions  of  Counsel.  On the  Initial Borrowing  Date, the
Agent  shall have received  opinions, addressed to  the Agent and  each of the
Banks and  dated  the Initial  Borrowing Date,  from (i)  Wayne Hillin,  Esq.,
General Counsel  to the Credit Parties, which  opinion shall cover the matters
contained in  Exhibit E-1, (ii)  White & Case,  special counsel to  the Agent,
which opinion  shall cover the matters contained in Exhibit E-2 and (iii) from
local counsel satisfactory to the Agent as the Agent may  request, which opin-
ions shall cover the perfection of the security  interests granted pursuant to
the Security Documents  and such  other matters incident  to the  transactions
contemplated  herein as the Agent may reasonably  request and shall be in form
and substance satisfactory to the Agent.

            5.05  Corporate Proceedings.  (a)  On  the Initial Borrowing Date,
the Agent shall have received from  each Credit Party a certificate, dated the
Initial Borrowing Date, signed by the President or any Vice-President or other
appropriate representative  of such Credit Party in the form of Exhibit F with
appropriate insertions and deletions, together with copies of  the certificate
of  formation, the by-laws, or  other organizational documents  of such Credit
Party  and the  resolutions, or  such other  administrative approval,  of such
Credit  Party referred  to  in  such  certificate and  all  of  the  foregoing
(including each  such certificate  of formation, certificate  of incorporation
and by-laws) shall be reasonably satisfactory to the Agent.

            (b)  On the Initial  Borrowing Date, all corporate  and legal pro-
ceedings  and all  instruments and  agreements in  connection with  the trans-
actions contemplated by this Agreement and the other Credit Documents shall be
reasonably satisfactory  in form  and substance  to the Agent,  and the  Agent
shall  have received all information and copies of all certificates, documents
and  papers, including  good standing  certificates and  any other  records of
corporate  proceedings and governmental approvals, if any, which the Agent may
have reasonably requested in connection therewith, such documents and  papers,
where  appropriate, to  be  certified  by  proper  corporate  or  governmental
authorities.

            5.06  Existing  Indebtedness  Agreements.    On or  prior  to  the
Initial  Borrowing Date, there shall have  been delivered to the Banks copies,
certified as true  and correct by  an appropriate officer  of the Borrower  or
Holdings, as  the case  may be,  of all agreements  evidencing or  relating to
Existing Indebtedness  (the "Existing Indebtedness Agreements"),  all of which
shall be in form and substance satisfactory to the Agent.

            5.07  Adverse Change, etc.  From December  31, 1995 to the Initial
Borrowing Date,  nothing shall have  occurred (and neither  the Banks nor  the
Agent shall have become aware of any facts or conditions not previously known)
which the Agent or  the Required Banks shall determine (a) has,  or is reason-
ably likely to  have, a material adverse  effect on the rights  or remedies of
the Banks  or the Agent,  or on the ability  of Holdings, the  Borrower or any
Subsidiary Guarantor to perform  their respective obligations to them,  or (b)
has, or is reasonably likely to have, a Material Adverse Effect.

            5.08  Litigation.  On the Initial Borrowing  Date, there shall  be
no  actions, suits or  proceedings pending or  threatened (a)  with respect to
this Agreement or any  other Credit Document or the  transactions contemplated
hereby or thereby or (b) which the Agent or the Required Banks shall determine
is  reasonably likely to  (i) have  a Material Adverse  Effect or  (ii) have a
material adverse  effect on the rights  or remedies of the  Banks hereunder or
under any other Credit Document or on the ability of Holdings, the Borrower or
or any Subsidiary  Guarantor to  perform their respective  obligations to  the
Banks hereunder or under any other Credit Document.

            5.09  Approvals.  On  the  Initial  Borrowing  Date,  all material
necessary  governmental and  third  party  approvals  in connection  with  the
transactions contemplated  by the Credit  Documents and otherwise  referred to
herein  or therein  shall have  been obtained  and remain  in effect,  and all
applicable waiting periods shall  have expired without any action  being taken
by  any competent authority which  restrains or prevents  such transactions or
imposes,  in the  reasonable  judgment of  the Required  Banks  or the  Agent,
materially adverse conditions upon the consummation of such transactions.

            5.10   Fees.  On  the Initial Borrowing  Date, the Borrower  shall
have paid to the Agent and the Banks all Fees and expenses agreed upon by such
parties to be paid on or prior to such date.

            5.11  Security  Agreement.   On  the Initial  Borrowing Date  each
Credit Party shall  have duly  authorized, executed and  delivered a  Security
Agreement in the form of  Exhibit G, together with such changes (or  with such
other documents) as  may be  requested by the  Collateral Agent in  connection
with local  law (as  modified, amended  or supplemented from  time to  time in
accordance  with  the  terms  thereof and  hereof,  the  "Security Agreement")
covering all of the Security Agreement Collateral, together with:

            (i)  executed copies  of Financing Statements  (Form UCC-1  and/or
      UCC-3) or appropriate  local equivalent in  appropriate form for  filing
      under  the UCC or appropriate  local equivalent of  each jurisdiction as
      may  be  necessary to  perfect the  security  interests purported  to be
      created by the Security Agreement;

           (ii)  certified copies of Requests  for Information or Copies (Form
      UCC-11),  or equivalent  reports,  each of  a  recent date  listing  all
      effective financing statements that name such Credit Party or a division
      or operating unit  of any such Person, as  debtor and that are  filed in
      the  jurisdictions referred to in clause (i) above, together with copies
      of such financing statements  (none of which shall cover  the Collateral
      except  (x)   those  with  respect  to   which  appropriate  termination
      statements executed by the secured lender thereunder have been delivered
      to  the  Collateral Agent  and (y)  to  the extent  evidencing Permitted
      Liens); and

          (iii)  evidence that  all other recordings  and filings of,  or with
      respect to,  the Security Agreement,  and all  other actions, as  may be
      necessary  or,  in the  opinion of  the  Collateral Agent,  desirable to
      perfect  the security interests intended  to be created  by the Security
      Agreement have been completed  (it being understood and agreed  that UCC
      financing statements  and termination statements  shall be filed  in the
      appropriate  governmental office  within three  Business Days  after the
      Initial Borrowing Date); 

and the Security Agreement and such other documents shall be in full force and
effect.

            5.12  Subsidiary Guaranty.   On  the Initial Borrowing  Date, each
Subsidiary of  the Borrower which  owns a  Mortgaged Rig  (each a  "Subsidiary
Guarantor") shall  have duly authorized,  executed and delivered  a Subsidiary
Guaranty  in the form of Exhibit H  (as modified, amended or supplemented from
time to time in accordance with  the terms hereof and thereof, the "Subsidiary
Guaranty"), and the Subsidiary Guaranty shall be in full force and effect.

            5.13  Mortgages.  (a)  On   the   Initial  Borrowing   Date,  each
Mortgagor  shall have duly  authorized, executed  and delivered  the following
document  or  documents to  which  it  is a  party  (as  modified, amended  or
supplemented  from time  to  time in  accordance with  the  terms thereof  and
hereof, the "Mortgages"):

            (i)  with respect to  the US  Rigs, substantially in  the form  of
      Exhibit I-1 (as amended, modified  or supplemented from time to  time in
      accordance with the terms hereof and thereof, the "US Mortgage");

           (ii)  with respect to the Panamanian Rig, substantially in the form
      of Exhibit  I-2 (as amended, modified or  supplemented from time to time
      in  accordance with  the  terms  hereof  and  thereof,  the  "Panamanian
      Mortgage");

          (iii)  with respect to the Australian Rig, substantially in the form
      of  Exhibit I-3 (as amended, modified  or supplemented from time to time
      in  accordance  with the  terms  hereof  and  thereof,  the  "Australian
      Mortgage"); and

           (iv)  with respect  to the Bahamian Rig, substantially  in the form
      of Exhibit I-3 (as amended,  modified or supplemented from time to  time
      in  accordance  with  the  terms   hereof  and  thereof,  the  "Bahamian
      Mortgage").

            (b)  On  the  Initial  Borrowing  Date,  all   actions  necessary,
desirable or otherwise reasonably requested by the Collateral Agent to provide
the Collateral Agent with a perfected first priority security  interest in all
Collateral purported to be covered by the Mortgages shall have been taken.

            5.14  Evidence of Lien, etc.   On the Initial Borrowing  Date, the
Agent  shall have  received  (i) United  States  Coast Guard  certificates  of
ownership  showing (or confirmation  updating previously reviewed certificates
and indicating) that the US  Rig Jack Bates is registered in the  ownership of
the Borrower, the US Rig W.D. Kent is registered in the ownership of Reading &
Bates Exploration  Co.  and the  US  Rig D.R.  Stewart  is registered  in  the
ownership of Reading & Bates Exploration Co.,  each subject to the Lien of the
US Mortgage and free of  all other Liens of record, (ii) a  certificate of the
Director General of  the Public  Registry of Panama  showing (or  confirmation
updating previously reviewed certificates  and indicating) that the Panamanian
Rig Charley Graves is registered in  the ownership of Reading and Bates Borneo
Drilling  Co., Ltd., and  subject to the  Lien of the  Panamanian Mortgage and
free  of  all other  Liens  of record,  (iii)  a certificate  of  the Shipping
Registration Office of Australia  showing (or confirmation updating previously
reviewed certificates  indicating) that  the Australian  Rig Ron  Tappmeyer is
registered in  the ownership of Reading & Bates (A)  Pty. Ltd., and subject to
the Lien of the Australian Mortgage and free of  all other Liens of record and
(iv) a  certificate of the Bahamas  Maritime Authority of The  Bahamas showing
(or confirmation  updating previously reviewed  certificates indicating)  that
the Bahamian Rig  J.W. McLean is registered in the  ownership of the Borrower,
and  subject to the Lien of the Bahamian  Mortgage and free of all other Liens
of record.

            5.15  Vessel Trust Indenture.  (a)  On the Initial Borrowing Date,
each Mortgagor  which owns a US Rig shall  have acknowledged and agreed to the
terms  of a trust indenture substantially  in the form set  forth as Exhibit J
(as amended, modified or supplemented from time to time in accordance with the
terms hereof and thereof, the "Vessel Trust Indenture").

            (b)  On  the  Initial  Borrowing  Date,  the  Trustee  shall  have
delivered to  the Agent a declaration of  United States citizenship (form 899)
satisfactory to the Agent.

            5.16  Rig Reports; Drilling  Contracts.   (a) On or  prior to  the
Initial Borrowing Date, the Agent shall have received:  

           (i)  evidence  satisfactory  to  the  Collateral  Agent  that  each
      Mortgaged Rig is classified in  the highest class available for  rigs of
      its age and type with  the American Bureau of Shipping, Inc.  or another
      internationally recognized classification society  reasonably acceptable
      to the Collateral Agent,  free of any material outstanding  requirements
      or recommendations; and

          (ii)  reports  from Approved  Shipbrokers  setting forth  the Market
      Value of each Mortgaged Rig, which  combined value of all Mortgaged Rigs
      shall not be less than $200 million.

            (b)  On the Initial Borrowing Date, the Agent  shall have received
true and correct copies of all current and pending drilling contracts relating
to the Mortgaged Rigs.

            5.17  Insurance  Report.   On  or prior  to the  Initial Borrowing
Date, the Agent shall have received  a detailed report from Soriero & Company,
Inc.,  or another firm of  independent marine insurance  brokers acceptable to
the Agent and the Required  Banks with respect to the insurance  maintained by
the  Mortgagors in  connection  with  the  Mortgaged  Rigs,  together  with  a
certificate  from such broker certifying  that such insurances  (i) are placed
with  such  insurance companies  and/or  underwriters  and/or  clubs, in  such
amounts, against such risks, and in such form, as are normally insured against
by similarly  situated insureds  and as  are necessary  or  advisable for  the
protection of the Trustee or the Agent,  as the case may be, as mortgagee  and
(ii) conform with the requirements of the Mortgages.

            5.18  Collateral  Assignments  of  Insurances.    On  the  Initial
Borrowing  Date, each Mortgagor shall have executed and delivered a collateral
assignment of insurance  substantially in the form set forth  as Exhibit K (as
amended, modified  or supplemented from  time to  time in accordance  with the
terms  hereof  and thereof,  the  "Collateral Assignment  of  Insurance") with
respect  to  the insurance  maintained by  such  Mortgagor on  the Collateral,
together with:  

           (i)  executed  copies of  Financing  Statements (Form  UCC-1 and/or
      UCC-3) or  appropriate local equivalent  in appropriate form  for filing
      under  the UCC or appropriate  local equivalent of  each jurisdiction as
      may be necessary  to perfect the assignments purported  to be created by
      each Collateral Assignment of Insurance; 

          (ii)  certified copies  of Requests for Information  or Copies (Form
      UCC-11),  or equivalent  reports,  each of  a  recent date  listing  all
      effective  financing statements that name any Mortgagor or a division or
      operating  unit of  such Person,  as debtor  and that  are filed  in the
      jurisdictions referred to in  clause (i) above, together with  copies of
      such  financing  statements (none  of which  shall cover  the Collateral
      except  (x)   those  with  respect  to   which  appropriate  termination
      statements executed by the secured lender thereunder have been delivered
      to  the  Collateral Agent  and (y)  to  the extent  evidencing Permitted
      Liens);

         (iii)  evidence  that all  other recordings and  filings of,  or with
      respect  to, each  Collateral  Assignment of  Insurance,  and all  other
      actions, as may be necessary or, in the opinion of the Collateral Agent,
      desirable  to perfect  the assignments  intended to  be created  by each
      Collateral  Assignment  of  Insurance  have  been  completed  (it  being
      understood  and agreed  that  UCC financing  statements and  termination
      statements shall be  filed in the appropriate governmental office within
      three Business Days after the Initial Borrowing Date);

and each Collateral Assignment of Insurance shall be in full force and effect.

            5.19   Earnings Concentration Account.   On or  before the Initial
Borrowing Date, the Borrower  shall have established with Christiania  Bank og
Kreditkasse,  Grand Cayman  Branch,  on terms  reasonably satisfactory  to the
Agent, an account (the "Concentration Account") into which the Earnings of the
Borrower  and  the Subsidiary  Guarantors arising  from  the operation  of the
Mortgaged  Rigs  shall  be deposited  and  maintained  as  cash collateral  in
accordance  with the Security Agreement.   Funds in  the Concentration Account
shall  be  released from  time to  time to  the  Borrower upon  the Borrower's
request  (which request shall be implied by  any withdrawal by the Borrower of
funds from  the Concentration  Account), unless  and until  such  time as  the
Agent, following  the occurrence of  an Event  of Default, requires  that said
monies be held as security or applied  by the Agent, for the benefit of itself
and the  Banks, or as it may direct, whereafter the Borrower shall procure and
ensure that such monies are held as security or applied in accordance with the
directions of the Agent.

            5.20  Refinancing; Existing Credit Agreement.  (a)  On or prior to
the  Initial  Borrowing  Date or  concurrently  with  the  Credit Events  then
occurring, the  total commitments  under the  Existing Credit  Agreement shall
have been  terminated, and all  loans and notes  issued thereunder shall  have
been repaid  in full,  together with interest  thereon, all letters  of credit
issued  thereunder shall  have been  terminated or  assumed hereunder  and all
other amounts owing thereunder shall have been repaid in full and the Existing
Credit  Agreement shall  have been terminated  and be  of no  further force or
effect  except for  continuing  indemnification obligations  and reimbursement
obligations under  letters of credit assumed hereunder.  The Borrower shall be
entitled  to utilize  this Facility  to terminate  the commitments,  repay the
loans  and terminate any letters  of credit (not  otherwise assumed hereunder)
under the Existing Credit Facility.  The Agent shall have received evidence in
form, scope  and substance reasonably satisfactory to  it that the matters set
forth in this Section 5.20(a) have been satisfied on such date.

            (b)  On or prior  to the  Initial Borrowing  Date or  concurrently
with the Credit Events then occurring, the creditors under the Existing Credit
Agreement  shall have terminated and released all security interests and Liens
on  the assets  owned by, Holdings,  the Borrower  or any  of its Subsidiaries
granted  in connection  with the Existing  Credit Agreement.   The Agent shall
have received such releases of  security interests in and Liens on  the assets
owned by Holdings, the Borrower and its Subsidiaries as may  have been reason-
ably requested  by the Agent,  which releases shall  be in form  and substance
reasonably satisfactory to the  Agent.  Without limiting the  foregoing, there
shall have been delivered (i) proper termination statements (Form UCC-3 or the
appropriate equivalent) for  filing under the UCC of each jurisdiction where a
financing  statement (Form UCC-1 or the appropriate equivalent) was filed with
respect to Holdings,  the Borrower or  any of  its Subsidiaries in  connection
with  the security  interests  created with  respect  to the  Existing  Credit
Agreement  and  the  documentation   related  thereto,  (ii)  terminations  or
assignments of  any security interest in, or Lien on, any patents, trademarks,
copyrights,  or similar  interests of  Holdings, the  Borrower or  any  of its
Subsidiaries on  which filings have  been made  and (iii) terminations  of all
mortgages,  leasehold mortgages  and deeds  of trust  created with  respect to
property of Holdings, the Borrower or any of its Subsidiaries, in each case to
secure the obligations under the Existing Credit Agreement, all of which shall
be in form and substance reasonably satisfactory to the Agent.

            5.21  Compliance Certificate.  On  the Initial Borrowing Date, the
Borrower shall have  delivered to the  Agent a compliance  certificate in  the
form of  Exhibit  D  to the  Existing  Credit Agreement  indicating  that  the
Borrower is current  with respect to its obligations under the Existing Credit
Agreement and  is otherwise in  compliance with  all the terms  and conditions
thereof.

            The  acceptance  of  the  benefits  of  each  Credit  Event  shall
constitute a  representation and warranty by  Holding and the  Borrower to the
Agent  and each of the Banks that  all of the conditions specified above which
are applicable  in accordance with  their express  terms at the  time of  such
acceptance exist as of that time.  All of the certificates, legal opinions and
other documents and  papers referred to  in this Section  5, unless  otherwise
specified,  shall  be delivered  to the  Agent at  its  Notice Office  for the
account  of  each of  the  Banks  and, except  for  the  Notes, in  sufficient
counterparts or copies for each of the Banks and shall be satisfactory in form
and substance to the Agent.

            SECTION 6.  Representations, Warranties and  Agreements.  In order
to induce  the Banks to enter  into this Agreement  and to make the  Loans and
issue and/or participate  in Letters  of Credit provided  for herein, each  of
Holdings and the  Borrower makes the following  representations and warranties
to, and agreements with, the  Banks, all of which shall survive  the execution
and delivery of this Agreement and the making of the Loans (with the making of
each Credit Event thereafter  being deemed to constitute a  representation and
warranty that the matters specified in this  Section 6 are true and correct in
all material respects on  and as of the date of each  such Credit Event unless
such representation and warranty expressly indicates that  it is being made as
of any specific date, in which case such representations  and warranties shall
be true and correct in all material respects as of such date):

            6.01  Corporate Status.  Each Credit Party (i) is a duly organized
and validly existing corporation in good standing under the laws of the juris-
diction of its  organization and has the corporate power  and authority to own
its property  and assets and to transact the business  in which it is engaged,
except  in such case  where the failure  to be  so duly organized  and validly
existing in good  standing and to have such corporate  power and authority (x)
is  not reasonably likely  to have  a Material Adverse  Effect and  (y) is not
reasonably likely to have a material adverse effect on the  rights or remedies
of the Banks  or on the  ability of Holdings,  the Borrower or any  Subsidiary
Guarantor  to perform its  obligations to them  hereunder and under  the other
Credit Documents  to which it is a  party, and (ii) has  duly qualified and is
authorized to do  business and is in good standing  in all jurisdictions where
it is required to  be so qualified  and where the failure  to be so  qualified
would have a Material Adverse Effect.

            6.02  Corporate Power  and Authority.  Each Credit  Party has  the
corporate power  and authority to execute, deliver and carry out the terms and
provisions of  the Credit Documents to which  it is a party  and has taken all
necessary  corporate   action  to   authorize  the  execution,   delivery  and
performance of the  Credit Documents to which it is a party. Each Credit Party
has duly executed and  delivered each Credit Document  to which it is  a party
and  each  such  Credit Document  constitutes  the  legal,  valid and  binding
obligation  of such Credit Party enforceable against such Person in accordance
with its  terms, except to the  extent that the enforceability  thereof may be
limited  by applicable  bankruptcy, insolvency, reorganization,  moratorium or
similar laws generally affecting creditors' rights and by equitable principles
(regardless of whether enforcement is sought in equity or at law).

            6.03  No   Violation.  Neither   the   execution,   delivery   and
performance by any Credit Party of the Credit Documents to which it is a party
nor compliance with the terms and provisions thereof, nor the  consummation of
the  transactions  contemplated therein  (i)  will  contravene any  applicable
provision  of any law, statute,  rule, regulation, order,  writ, injunction or
decree of  any court or governmental  instrumentality of the United  States or
any State thereof, the Republic of Panama, Australia, or the Bahamas (ii) will
result in any breach of any of the terms, covenants,  conditions or provisions
of, or  constitute a default  under, or (other  than pursuant to  the Security
Documents)  result in  the creation  or imposition  of  (or the  obligation to
create or impose) any Lien upon any of the property or assets of Holdings, the
Borrower or any of their respective Subsidiaries pursuant to the terms of, any
material  indenture, mortgage, deed of trust, agreement or other instrument to
which  Holdings, the  Borrower or any  of their  respective Subsidiaries  is a
party or by which it or any of its property or assets are bound or to which it
is  subject  or (iii)  will  violate  any  provision  of  the  Certificate  of
Incorporation or By-Laws of Holdings, the  Borrower or any of their respective
Subsidiaries.

            6.04  Litigation.  There  are no  actions,  suits  or  proceedings
pending or,  to the best of  Holding's or the  Borrower's knowledge threatened
with respect to Holdings, the Borrower or any of their respective Subsidiaries
(i)  that are  likely  to have  a Material  Adverse  Effect or  (ii) that  are
reasonably likely to have a material  adverse effect on the rights or remedies
of the Banks or on the ability of any Credit Party  to perform its obligations
to them hereunder and under the other Credit Documents to which it is a party.

            6.05  Use  of Proceeds; Margin  Regulations.  (a)  The proceeds of
all  Loans shall be utilized to provide  for the general corporate purposes of
Holdings, the Borrower and their respective Subsidiaries.

            (b)  Neither the  making of any Loan hereunder, nor the use of the
proceeds  thereof,  will violate  or be  inconsistent  with the  provisions of
Regulation G,  T, U  or X of  the Board  of Governors  of the Federal  Reserve
System and no  part of the proceeds  of any Loan will  be used to purchase  or
carry any Margin Stock in  violation of Regulation U  or to extend credit  for
the purpose of purchasing or carrying any Margin Stock.

            6.06  Governmental  Approvals.  Except  for the  orders, consents,
approvals,  licenses,  authorizations, validations,  recordings, registrations
and exemptions that have already been duly made or obtained and remain in full
force  and effect,  no order,  consent, approval,  license, authorization,  or
validation  of, or  filing  (other than  the filing  of  Form UCC-1  Financing
Statements or the appropriate  equivalents, which such filing, if  this repre-
sentation is being  made more than ten days after  the Initial Borrowing Date,
has been made),  recording or registration with, or  exemption by, any foreign
or  domestic  governmental or  public body  or  authority, or  any subdivision
thereof, is  required to authorize or  is required in connection  with (i) the
execution,  delivery  and  performance of  any  Credit  Document  or (ii)  the
legality, validity, binding effect or enforceability of any Credit Document.

            6.07  Investment Company Act.  None  of Holdings, the  Borrower or
any of their respective Subsidiaries is  an "investment company" or a  company
"controlled"  by an "investment company," within the meaning of the Investment
Company Act of 1940, as amended.

            6.08  Public Utility  Holding Company Act.  None  of Holdings, the
Borrower or  any of their respective Subsidiaries is a "holding company," or a
"subsidiary  company" of a "holding company," or  an "affiliate" of a "holding
company" or of a "subsidiary company" of a "holding company," within the mean-
ing of the Public Utility Holding Company Act of 1935, as amended.

            6.09  True  and  Complete  Disclosure.  All   factual  information
(taken as a whole) heretofore or  contemporaneously furnished by or on  behalf
of Holdings, the  Borrower or any of their respective  Subsidiaries in writing
to the Agent or any Bank for purposes of or in  connection with this Agreement
or any transaction contemplated herein is, and all other such factual informa-
tion (taken as a whole) hereafter furnished by or on behalf of any such Person
in writing to any Bank will be, true and  accurate in all material respects on
the date as of which such information is dated or certified and not incomplete
by omitting  to state  any material  fact necessary  to make  such information
(taken as a whole)  not misleading at such time in  light of the circumstances
under  which such  information was provided.   The  Projections and  pro forma
financial  information contained  in such  materials are  based on  good faith
estimates and  assumptions believed  by such Persons  to be reasonable  at the
time made, it being recognized by the Banks that such Projections as to future
events are not to be viewed as facts and that actual results during the period
or  periods covered  by  any such  Projections may  differ from  the projected
results.   There  is  no fact  known  to Holdings  or  the Borrower  which  is
reasonably likely  to have  a  Material Adverse  Effect,  which has  not  been
disclosed  herein or  in  such other  documents,  certificates and  statements
furnished  to  the  Banks   for  use  in  connection  with   the  transactions
contemplated hereby.

            6.10  Financial Condition; Financial Statements; Projections.  (a)
On and  as of the Initial  Borrowing Date, on  a pro forma basis  after giving
effect to  all Indebtedness incurred, and  to be incurred, and  Liens created,
and to be created, by  Holdings and its Subsidiaries in connection  therewith,
(x)  the  sum  of  the  assets, at  a  fair  valuation,  of  Holdings  and its
Subsidiaries  taken as  a whole will  exceed its  debts, (y)  Holdings and its
Subsidiaries  taken as  a whole  will  not have  incurred or  intended to,  or
believe that they will, incur  debts beyond their ability to pay such debts as
such debts mature and (z) Holdings and its Subsidiaries taken  as a whole will
not have unreasonably small capital with which to conduct its business.  

            (b)  (i)  The  consolidated  balance  sheet of  Holdings  and  its
Subsidiaries at December 31,  1995 and the related consolidated  statements of
operations and  cash flows  of Holdings  and its  Subsidiaries for  the fiscal
year, as the case may  be, ended as of said date, which have  been examined by
Arthur Andersen  LLP, independent certified public  accountants, who delivered
an   unqualified  opinion  in  respect  therewith,  and  (ii)  the  pro  forma
consolidated balance sheet of Holdings and  its Subsidiaries as of [March  31,
1996], copies  of which have heretofore  been furnished to each  Bank, present
fairly the financial position of such entities at the dates of said statements
and the results for the period covered thereby in accordance with GAAP (or, in
the case of the pro forma balance sheet, presents a good faith estimate of the
consolidated pro forma financial condition of Holdings and its Subsidiaries at
the  date  thereof), except  to  the  extent provided  in  the  notes to  said
financial statements and,  in the case of the March  31, 1996 statements, sub-
ject  to normal and  recurring year-end audit adjustment.   All such financial
statements  (other than  the  aforesaid pro  forma  balance sheet)  have  been
prepared  in  accordance with  generally  accepted  accounting principles  and
practices consistently applied except to the  extent provided in the notes  to
said financial statements.  Nothing has  occurred since December 31, 1995 that
has had or is reasonably likely to have a Material Adverse Effect.

            (c)  Except as reflected in the financial statements and the notes
thereto described in Section 6.10(b),  there were as of the  Initial Borrowing
Date  no liabilities or obligations with respect  to Holdings, the Borrower or
any of their respective  Subsidiaries of a nature (whether  absolute, accrued,
contingent or otherwise and whether or not due)  which, either individually or
in aggregate,  would be material to  Holdings and its Subsidiaries  taken as a
whole,  except as  incurred subsequent  to December 31,  1995 in  the ordinary
course of business consistent with past practices.  

            (d)  On and  as  of  the Initial  Borrowing  Date,  the  financial
projections  dated as  of March  8, 1996,  together with  adjustments thereto,
previously delivered to the Agent and the Banks (the "Projections") have  been
prepared on  a basis consistent with  the financial statements  referred to in
Section 6.10(a) (other than  as set forth or  presented in such  Projections),
and there are no statements or conclusions in any of the Projections which are
based upon or include information known to Holdings or the Borrower to be mis-
leading in  any material respect or  which fail to take  into account material
information  not otherwise  disclosed in writing  to the Agents  and the Banks
regarding  the matters  reported  therein.   On  the Initial  Borrowing  Date,
Holdings  and the Borrower believed  that the Projections  were reasonable and
attainable.

            6.11  Security  Interests.  On and  after  the  Initial  Borrowing
Date, each of  the Security Documents creates, as security for the Obligations
purported  to be secured thereby,  a valid and  enforceable perfected security
interest in and Lien on all of  the Collateral subject thereto, to the  extent
perfection of  a security interest or Lien is governed by Article 8 or Article
9  of the  UCC (as  defined in  the applicable  Security Documents),  the Ship
Mortgage Act (as defined in the Mortgages), or comparable provisions under the
laws of the Republic  of Panama, Australia, and The Bahamas, and subject to no
other Liens (except that the Collateral may be subject to Permitted Liens), in
favor  of the  Collateral Agent or  the Trustee, as  the case may  be, for the
benefit of  the Banks.   No  filings or  recordings are  required in  order to
perfect  the security interests created under any Security Document except for
filings or recordings required  in connection with any such  Security Document
which  shall  have  been  made  upon  or  prior to  (or  are  the  subject  of
arrangements, satisfactory to the  Agent, for filing on or promptly  after the
date of) the execution and delivery thereof.

            6.12  Tax Returns  and Payments.  Each  of Holdings,  the Borrower
and each of  their respective  Subsidiaries has filed  all federal income  tax
returns and all other material tax  returns, domestic and foreign, required to
be filed  by it and has paid all material  taxes and assessments payable by it
which  have become  due, other than  those not  yet delinquent  and except for
those  contested in  good faith.   Holdings,  the Borrower  and each  of their
respective  Subsidiaries has  paid,  or has  provided  adequate reserves  with
respect thereto,  in accordance with  GAAP, for  the payment of,  all federal,
state and foreign  income taxes applicable for all prior  fiscal years and for
the current fiscal year to the date hereof.

            6.13  Compliance  with ERISA.   (a)  Each Plan  is in  substantial
compliance with  ERISA and  the Code;  no Reportable  Event has occurred  with
respect to a Plan; no Plan is  insolvent or in reorganization; no Plan has  an
accumulated  or waived funding  deficiency or has applied  for an extension of
any  amortization period within  the meaning of  Section 412 of  the Code; all
contributions required to be made with respect to a Plan and a Foreign Pension
Plan  have  been  timely  made;  neither Holdings  nor  the  Borrower  nor any
Subsidiary of the  Borrower nor any ERISA Affiliate has  incurred any material
liability to or on account of a  Plan pursuant to Section 409, 502(i), 502(l),
4062, 4063,  4064, 4069, 4201,  4204 or 4212  of ERISA or  Section 401(a)(29),
4971, 4975 or  4980 of the Code  or expects to incur any  liability (including
any indirect, contingent, or  secondary liability) under any of  the foregoing
Sections with  respect to  any Plan;  no proceedings  have been instituted  to
terminate or  appoint a trustee  to administer  any Plan; no  condition exists
which presents a material risk to Holdings, the Borrower or  any Subsidiary of
the Borrower  or any ERISA Affiliate of incurring a liability to or on account
of  a Plan pursuant  to the  foregoing provisions  of ERISA  and the  Code; or
except as would reasonably be  expected to have a Material Adverse  Effect, no
lien imposed under  the Code or  ERISA on the  assets of  the Borrower or  any
Subsidiary  of the Borrower  or any  ERISA Affiliate  exists or  is reasonably
likely to arise on account of  any Plan; and Holdings, the Borrower and  their
respective  Subsidiaries do not maintain or contribute to any employee welfare
benefit plan (as defined in Section  3(1) of ERISA) which provides benefits to
retired employees or other former employees (other than as required by Section
601 of ERISA) or any employee pension benefit plan (as defined in Section 3(2)
of ERISA) the obligations with respect to which are not properly recognized or
disclosed in such entity's consolidated financial statements and notes related
thereto.

            (b)   Each Foreign Pension Plan has been maintained in substantial
compliance with its terms and with the requirements of any  and all applicable
laws, statutes, rules, regulations  and orders and has been  maintained, where
required,  in good standing with  applicable regulatory authorities.   None of
Holdings,  the Borrower or any  of their respective  Subsidiaries has incurred
any obligation  in connection with the  termination of or withdrawal  from any
Foreign Pension Plan.

            6.14  Subsidiaries.  Annex  V lists  each  Subsidiary of  Holdings
(and the  direct and indirect ownership interest of Holdings therein), in each
case existing on the Effective Date. 

            6.15  Patents,  etc.  Holdings and  each of  its  Subsidiaries has
obtained  all  material  patents,  trademarks,  service  marks,  trade  names,
copyrights, licenses and other rights, free from burdensome restrictions, that
are  necessary  for the  operation of  their businesses  taken  as a  whole as
presently conducted.

            6.16  Pollution and Other Regulations.  (a)  Each of  Holdings and
its   Subsidiaries  is   in   substantial  compliance   with  all   applicable
Environmental  Laws  governing its  business for  which  failure to  comply is
reasonably likely to have  a Material Adverse Effect, and neither Holdings nor
any  of its  Subsidiaries  is  liable for  any  material  penalties, fines  or
forfeitures for  failure to comply with  any of the foregoing.   All licenses,
permits,  registrations or approvals required for the business of Holdings and
each of its Subsidiaries, as conducted as of the Initial Borrowing Date, under
any  Environmental  Law have  been  secured  and  Holdings  and  each  of  its
Subsidiaries  is in  substantial compliance  therewith, except  such licenses,
permits, registrations or approvals the failure to  secure or to comply there-
with is  not likely to have a  Material Adverse Effect.   Neither Holdings nor
any of its  Subsidiaries is in any respect in noncompliance with, breach of or
default under any applicable  writ, order, judgment, injunction, or  decree to
which Holdings or such Subsidiary is a party or which would affect the ability
of Holdings or such Subsidiary to operate any Real Property, offshore drilling
rig or other facility and no event has occurred and  is continuing which, with
the passage  of time or the giving of notice or both, would constitute noncom-
pliance,  breach of  or default  thereunder, except  in  each such  case, such
noncompliance, breaches or defaults  as are not likely  to, in the  aggregate,
have a Material Adverse Effect.  There are as of the Initial Borrowing Date no
Environmental  Claims pending or,  to the best  knowledge of  Holdings and the
Borrower, threatened, against Holdings  or any of its Subsidiaries  wherein an
unfavorable decision, ruling or  finding would be reasonably likely  to have a
Material Adverse Effect.   There  are no facts,  circumstances, conditions  or
occurrences  on any  Real Property,  offshore drilling  rig or  other facility
owned or  operated by Holdings or  any of its Subsidiaries  that is reasonably
likely (i) to  form the basis of an Environmental  Claim against Holdings, any
of  its Subsidiaries  or any  Real  Property, offshore  drilling rig  or other
facility owned  by Holdings or any of its Subsidiaries,  or (ii) to cause such
Real Property,  offshore drilling rig or  other facility to be  subject to any
restrictions on  its ownership,  occupancy, use or  transferability under  any
Environmental  Law, except  in each  such case,  such Environmental  Claims or
restrictions that individually or  in the aggregate are not  reasonably likely
to have a Material Adverse Effect.

            (b)  Hazardous Materials  have not at any time been (i) generated,
used, treated  or stored on,  or transported  to or from,  any Real  Property,
offshore  drilling rig  or other  facility at  any time  owned or  operated by
Holdings or any of its Subsidiaries, or (ii) released on or from any such Real
Property, offshore  drilling rig or other facility, in each case where, to the
best  of Holdings'  or  the Borrower's  knowledge,  such occurrence  or  event
individually  or in  the aggregate  is reasonably  likely to  have a  Material
Adverse Effect.

            6.17  Properties.  (a)  Holdings and each  of its Subsidiaries has
title  to all  material  properties  owned  by  them  including  all  property
reflected in the consolidated  balance sheet of Holdings and  its Subsidiaries
as referred to in Section 6.10(b), free and clear of all Liens, other than (i)
as referred to in  the consolidated balance sheet  or in the notes  thereto or
(ii) Permitted Liens.

            (b)  Annex VI sets  forth all the offshore drilling rigs and other
vessels owned or  chartered by Holdings  and each of  its Subsidiaries on  the
Effective  Date, and identifies the registered owner, flag, official or patent
number,  as the  case may  be, the  home port,  class, location  and operating
status  on the Effective Date, and, if  chartered-in by Holdings or any of its
Subsidiaries, the name and address of the owner of such chartered-in vessel. 

            6.18  Labor Relations.  Neither Holdings  nor its Subsidiaries  is
engaged  in any  unfair labor  practice that  is reasonably  likely to  have a
Material Adverse  Effect.   There is (i)  no unfair  labor practice  complaint
pending against  Holdings or any of its Subsidiaries or threatened against any
of  them,  before the  National Labor  Relations  Board, and  no  grievance or
arbitration  proceeding arising  out  of or  under  any collective  bargaining
agreement is so pending against Holdings or any of its Subsidiaries or, to the
best of Holdings' or the Borrower's knowledge, threatened against any of them,
(ii) no strike, labor  dispute, slowdown or stoppage pending  against Holdings
or  any of its  Subsidiaries or,  to the best  of Holdings'  or the Borrower's
knowledge, threatened against Holdings or any of its Subsidiaries and (iii) no
union representation  petition  existing  with  respect to  the  employees  of
Holdings or any  of its Subsidiaries  and no union  organizing activities  are
taking place, except with respect to any matter specified in  clause (i), (ii)
or  (iii) above,  either individually  or  in the  aggregate, such  as is  not
reasonably likely to have a Material Adverse Effect.

            6.19  Existing Indebtedness.   Annex  VII sets  forth  a true  and
complete list  of all Indebtedness of Holdings and each of its Subsidiaries on
the Effective  Date and  which  is to  remain  outstanding after  the  Initial
Borrowing  Date (excluding the Loans and the  Letters of Credit, the "Existing
Indebtedness"),  in each case  showing the aggregate  principal amount thereof
and the name of the respective borrower (or issuer) and any other entity which
directly or indirectly guaranteed such debt.

            6.20  Citizenship.    The  Mortgagors  are qualified  to  own  and
operate the Mortgaged  Rigs under the laws of the  United States, the Republic
of Panama, Australia and The Bahamas, as may be applicable.

            6.21  Rig  Classification.   Each offshore  drilling rig  owned or
leased  by Holdings  and its Subsidiaries  is classified in  the highest class
available for rigs of  its age and type with the  American Bureau of Shipping,
Inc. or another  internationally recognized classification society  reasonably
acceptable  to  the  Collateral  Agent,  free  of   any  material  outstanding
requirements  or recommendations, other than (i) with respect to any Mortgaged
Rig, as permitted under the Mortgage relating thereto and (ii) with respect to
any other rigs, such requirements or recommendations which if not cured by the
owner thereof would not materially diminish such rig's value.

            SECTION  7.  Affirmative  Covenants.  Holdings  and  the  Borrower
covenant and  agree that on the  Initial Borrowing Date and  thereafter for so
long  as  this  Agreement  is  in  effect  (and  until  the  Commitments  have
terminated, no  Letters of Credit or  Notes are outstanding and  the Loans and
Unpaid  Drawings, together  with  interest,  Fees  and all  other  Obligations
incurred hereunder, are paid in full):

            7.01  Information  Covenants.  Holdings  and/or the  Borrower will
furnish to each Bank:

            (a)  Annual Financial Statements.  Within 90  days after the close
      of  each  fiscal year  of Holdings,  the  consolidated balance  sheet of
      Holdings and its Subsidiaries, as at the end of such fiscal year and the
      related consolidated statements of operations and of cash flows for such
      fiscal year,  including the amount of  Consolidated Capital Expenditures
      made during such  fiscal year,  in each case  setting forth  comparative
      consolidated  figures  for the  preceding fiscal  year, and  examined by
      independent certified public accountants of recognized national standing
      whose opinion shall  not be qualified as to the scope of audit and as to
      the status of Holdings and its Subsidiaries as a going concern, together
      with a certificate of such accounting firm stating that in the course of
      its  regular audit of  the business of Holdings  and the Borrower, which
      audit  was  conducted in  accordance  with  generally accepted  auditing
      standards, such accounting firm has obtained no knowledge of any Default
      or Event of  Default which has occurred and is continuing  or, if in the
      opinion of such accounting firm  such a Default or Event of  Default has
      occurred and is continuing, a statement as to the nature thereof.

            (b)  Quarterly Financial Statements.  As soon as  available and in
      any event  within 45  days after the  close of  each of the  first three
      quarterly  accounting  periods in  each  fiscal  year, the  consolidated
      balance sheet  of Holdings and its  Subsidiaries, as at the  end of such
      quarterly period  and the related consolidated  statements of operations
      and of cash flows for such  quarterly period and for the elapsed portion
      of  the fiscal year  ended with the  last day of  such quarterly period,
      including the  amount of  Consolidated Capital Expenditures  made during
      such  period, and  in each  case setting forth  comparative consolidated
      figures for  the related period in  the prior fiscal year,  all of which
      shall  be unaudited,  but certified  by the  chief financial  officer or
      controller  of Holdings,  subject  to changes  resulting from  audit and
      normal year-end audit adjustments.

            (c)   Rig Status  Report.  As soon  as available and in  any event
      within  60 days  after the  end of  the first  three fiscal  quarters of
      Holdings and within 90 days after the end of the  fourth fiscal quarter,
      a report (in form  satisfactory to the Agent) detailing  (i)(A) the then
      current location of each of the  offshore drilling rigs owned or  leased
      by  Holdings and  its Subsidiaries,  (B) the  then current  term of  and
      parties to any  contract of any such offshore drilling  rig, and (C) the
      then current day rate with respect to any such contract and (ii) for the
      previous  fiscal quarter, the average day rates and utilization for each
      such offshore drilling rig.

            (d)  Forecast; etc.  Not more than  60 days after the commencement
      of  each fiscal year  of Holdings, a  forecast which  includes an income
      statement, balance sheet  and cash  flow statement of  Holdings and  its
      Subsidiaries for each of  the four fiscal quarters of  such fiscal year,
      including a breakdown of  revenues, operating expenses, utilizations and
      Consolidated Capital Expenditure assumptions for each  offshore drilling
      rig owned or leased by Holdings and its Subsidiaries.

            (e)  Compliance Certificate.  At  the time of the  delivery of the
      financial  statements  provided  for  in  Sections  7.01(a)  and  (b), a
      certificate of Holdings and/or  the Borrower signed by its  chief finan-
      cial  officer, controller  or other  Authorized Officer  in the  form of
      Exhibit L to the effect that no  Default or Event of Default exists  or,
      if any Default or Event of Default does exist, specifying the nature and
      extent thereof, which certificate  shall set forth the calculations  re-
      quired  to  establish whether  Holdings  and  its Subsidiaries  were  in
      compliance with the provisions of Section 8 as at the end of such fiscal
      period or year, as the case may be.

            (f)  Notice of Default or  Litigation.  Promptly, and in any event
      within  (x) three Business Days  after Holdings or  the Borrower obtains
      knowledge  thereof,  notice  of  the  occurrence  of   any  event  which
      constitutes a Default or Event of Default which notice shall specify the
      nature thereof, the period of existence thereof and what action Holdings
      or the  Borrower  proposes to  take  with respect  thereto  and (y)  ten
      Business Days after  the Borrower obtains  knowledge thereof, notice  of
      the  commencement of or any significant development in any litigation or
      governmental  proceeding pending against Holdings or the Borrower or any
      of  their respective  Subsidiaries which  is likely  to have  a Material
      Adverse Effect  or is likely  to have a  material adverse effect  on the
      ability of Holdings, the Borrower or any Subsidiary Guarantor to perform
      its obligations hereunder or under any other Credit Document.

            (g)  Auditors'   Reports.  Promptly   upon  receipt   thereof  and
      following  such time  as management  shall have  had reasonable  time to
      respond thereto, a  copy of  each formal report  or "management  letter"
      submitted  to Holdings or the Borrower by its independent accountants in
      connection  with any annual, interim or special  audit made by it of the
      books of Holdings or the Borrower.

            (h)  Insurance  Report.   On  or  before each  anniversary  of the
      Initial  Borrowing Date,  a report  from Holdings and/or  the Borrower's
      independent maritime insurance broker as required by the Mortgages.

            (i)  Annual Rig Valuation Report.  At the  time of the delivery of
      the financial statements provided for in Section 7.01(a), an updated rig
      valuation  report from an Approved  Shipbroker setting forth the current
      Market Value of each Mortgaged Rig.

            (j)  SEC Reports.   Promptly upon transmission  thereof, copies of
      any material filings and registration  with, and reports to, the SEC  by
      Holdings  or any  of  its  Subsidiaries  and  copies  of  all  financial
      statements,  proxy statements, notices and reports as Holdings or any of
      its  Subsidiaries shall  generally send  to analysts  or all  holders of
      their capital stock in their  capacity as such holders (in each  case to
      the  extent  not theretofore  delivered to  the  Banks pursuant  to this
      Agreement).

            (k)  Other Information.  From time to time, such other information
      or documents (financial or otherwise) as  the Agent on its own behalf or
      on behalf of the Required Banks may reasonably request.

            7.02  Books,  Records and  Inspections.  Holdings  will, and  will
cause each of its Subsidiaries to, permit, upon reasonable notice to the chief
financial officer, controller or  any other Authorized Officer of  Holdings or
the  Borrower, officers  and designated  representatives of  the Agent  or the
Required Banks,  to the extent necessary,  to examine the books  of account of
Holdings and  any of its  Subsidiaries and discuss  the affairs, finances  and
accounts of Holdings and of any of its Subsidiaries with, and be advised as to
the same by, its and  their officers and independent accountants, all  at such
reasonable  times and intervals and to such  reasonable extent as the Agent or
the Required Banks may desire.

            7.03  Insurance.  In addition to any requirements set forth in the
Mortgages, Holdings will,  and will cause each of its  Subsidiaries to, at all
times  maintain in  full  force  and effect  insurance  in  such amounts  with
carriers of such insurance  industry ratings, covering such risks  and liabil-
ities  and  with  such  deductibles  or  self-insured  retentions  as  are  in
accordance  with normal  industry  practice for  similarly situated  insureds.
Holdings  will, and  will cause each  of its  Subsidiaries to,  furnish on the
Initial Borrowing Date  and annually thereafter to the Agent  a summary of the
insurance carried together  with certificates of insurance  and other evidence
of such insurance.

            7.04  Payment of Taxes.  Holdings will pay and discharge, and will
cause each of its  Subsidiaries to pay and  discharge, all taxes,  assessments
and  governmental charges  or levies  imposed upon  it or  upon its  income or
profits, or upon any  properties belonging to it,  prior to the date on  which
penalties attach thereto, and all lawful claims which, if unpaid, might become
a Lien or charge  upon any properties of Holdings or any  of its Subsidiaries,
provided that neither Holdings nor any Subsidiary shall be required to pay any
such  tax, assessment, charge, levy or claim  which is being contested in good
faith and by  proper proceedings if it  has maintained adequate reserves  with
respect thereto in accordance with GAAP.

            7.05  Consolidated  Corporate  Franchises.  Holdings will  do, and
will  cause each of its  Subsidiaries to do,  or cause to be  done, all things
necessary  to preserve  and  keep  in full  force  and  effect its  existence,
material rights and  authority, unless the failure to do  so is not reasonably
likely  to have  a  Material Adverse  Effect,  provided that  any  transaction
permitted by Section 8.02 will not constitute a breach of this Section 7.05.

            7.06  Compliance  with  Statutes,  etc.  Holdings  will,  and will
cause  each of  its  Subsidiaries to,  comply  with all  applicable  statutes,
regulations and orders  of, and  all applicable restrictions  imposed by,  all
governmental  bodies, domestic or  foreign, in respect  of the conduct  of its
business  and the  ownership  of  its  property  other  than  those  the  non-
compliance with  which would not have  a Material Adverse Effect  or would not
have a  material adverse effect on the ability  of any Credit Party to perform
its obligations under any Credit Document to which it is party.

            7.07  Good  Repair.  Except for  offshore drilling  rigs currently
under  or scheduled to be repaired or which have been damaged or have suffered
a casualty  as to which (within  a reasonable period of  time) Holdings and/or
the Borrower have not made a determination whether to replace or repair, or if
the determination  to  replace or  repair  has been  made,  as to  which  such
replacement or  repairs  are  being undertaken,  subject  to  availability  of
equipment, materials and/or  repair facilities, Holdings will,  and will cause
each of  its Subsidiaries to, keep its properties and equipment used or useful
in  its  business, in  whomsoever's possession  they may  be, in  good repair,
working order  and condition, normal  wear and tear excepted,  and, subject to
Section 8.02, see that from time to time there are made in such properties and
equipment   all  necessary   and  proper   repairs,   renewals,  replacements,
extensions, additions, betterments and improvements thereto to the  extent and
in the manner useful or customary for companies in similar businesses.

            7.08  End of  Fiscal Years;  Fiscal Quarters.  Holdings  will, for
financial  reporting purposes, cause  (i) each of  its fiscal years  to end on
December 31 of each year and (ii) each of  its fiscal quarters to end on March
31, June 30, September 30 and December 31 of each year.

            7.09  Use of Proceeds.  All proceeds of the Loans shall be used as
provided in Section 6.05.

            7.10  Additional  Rig Valuations.  At any time as may be requested
by the Agent  at the request of the Required Banks  (but in no event less than
annually and not more than  three times in any fiscal year of Holdings) and at
the expense of the Borrower (without taking into account the right of Holdings
or the Borrower to retain a  second Approved Shipbroker in accordance with the
immediately succeeding  sentence), Holdings or  the Borrower shall  retain the
Approved Shipbroker requested by the Agent  to supply a written report setting
forth the  Market Value of each Mortgaged  Rig at such time.   Holdings or the
Borrower may retain a second  Approved Shipbroker of its own choosing  at such
time and at its  own expense to supply a  second written report setting  forth
the Market  Value of  such  Mortgaged Rigs.    Promptly upon  receipt  thereof
Holdings and/or the Borrower shall  deliver copies of each such report  to the
Banks.  

            7.11  Further  Assurances.  (a)  Holdings  and the  Borrower will,
and will cause each of their respective Subsidiaries to, at the expense of the
Borrower,  make, execute,  endorse,  acknowledge, file  and/or deliver  to the
Collateral Agent or the Trustee,  as the case may  be, from time to time  such
vouchers,   invoices,   schedules,   confirmatory  assignments,   conveyances,
financing statements, transfer endorsements, powers of attorney, certificates,
real  property surveys, reports and  other assurances or  instruments and take
such  further steps relating to the Collateral  as the Collateral Agent or the
Trustee, as the case may be, may reasonably require.  

            (b)  Holdings  and the  Borrower agree  that each  action required
above by this  Section 7.11 shall be completed as soon  as possible, but in no
event later  than 60 days  after such action is  requested to be  taken by the
Agent or the Required  Banks, provided that in no event shall  Holdings or the
Borrower be required to take any action, other than using  its reasonable com-
mercial  efforts without any material expenditure, to obtain consents or other
actions from third  parties with respect  to its compliance with  this Section
7.11.

            7.12  ERISA.   As soon as  possible and, in  any event, within  10
days after Holdings, the Borrower or any of  their  respective Subsidiaries or
any ERISA  Affiliate knows or has reason  to know of the  occurrence of any of
the following, Holdings  or the Borrower will  deliver to each of  the Banks a
certificate of the Chief Financial Officer of Holdings or the Borrower setting
forth details as to such occurrence and the action, if any, that Holdings, the
Borrower, such Subsidiary  or such ERISA Affiliate is required  or proposes to
take, together with any  notices required or proposed to be given  to or filed
with or  by Holdings, the Borrower, such  Subsidiary, the ERISA Affiliate, the
PBGC,  or a Plan participant  or the Plan  administrator with respect thereto:
that a Reportable Event  has occurred; that an accumulated  funding deficiency
has been  incurred or an application may be or  has been made to the Secretary
of the Treasury for a  waiver or modification of the minimum  funding standard
(including  any  required  installment  payments)  or   an  extension  of  any
amortization period under Section 412 of the Code or Section 302 of ERISA with
respect  to a  Plan; that  a contribution  required to  be made  to a  Plan or
Foreign Pension Plan has not been timely made; that  a Plan has been or may be
terminated, reorganized, partitioned  or declared insolvent under  Title IV of
ERISA; that  a Plan has an  Unfunded Current Liability  giving rise to  a lien
under ERISA or the Code;  that proceedings may be  or have been instituted  to
terminate or  appoint a trustee  to administer a  Plan, that a  proceeding has
been instituted  pursuant to  Section 515  of ERISA  to  collect a  delinquent
contribution to a  Plan; that Holdings, the Borrower, any  of their respective
Subsidiaries or any ERISA Affiliate will or may incur any liability (including
any  indirect contingent  or  secondary liability)  to  or on  account of  the
termination of or withdrawal from a Plan under Section 4062, 4063, 4064, 4069,
4201,  4204 or  4212  of  ERISA  or  with respect  to  a  Plan  under  Section
401(a)(29),  4971 or 4975 of  the Code or  Section 409 or 502(i)  or 502(l) of
ERISA; or that Holdings, the Borrower or any Subsidiary may incur any material
unrecognized  liability pursuant  to  any employee  welfare  benefit plan  (as
defined in Section 3(1) of ERISA) that provides benefits to  retired employees
or other former employees  (other than as required by Section 601 of ERISA) or
any employee pension benefit plan (as defined in Section 3(2) of ERISA).  Upon
request, Holdings or the Borrower will deliver to each of the Banks a complete
copy of the  annual report (Form 5500)  of each Plan (including  to the extent
required,  the related  financial and  actuarial statements  and opinions  and
other  supporting  statements,  certifications,  schedules   and  information)
required to be filed  with the Internal Revenue  Service.  In addition  to any
certificates or notices delivered  to the Banks pursuant to the first sentence
hereof,  copies  of  annual reports,  and  any  material  notices received  by
Holdings,  the Borrower or  any of their respective  Subsidiaries or any ERISA
Affiliate from  any governmental  agency  with respect  to any  Plan shall  be
delivered to the  Banks no later than 10  days after the date such  report has
been filed  with the Internal Revenue Service or such notice has been received
by  Holdings,  the  Borrower,  the  Subsidiary  or  the  ERISA  Affiliate,  as
applicable.

            SECTION  8.  Negative Covenants.  Holdings and the Borrower hereby
covenant and agree that as of the Initial Borrowing Date and thereafter for so
long as this Agreement is in effect and until the Commitments have terminated,
no  Letters  of Credit  or  Notes are  outstanding  and the  Loans  and Unpaid
Drawings, together  with interest,  Fees and  all  other Obligations  incurred
hereunder, are paid in full:

            8.01  Changes in  Business.  Holdings  and the Borrower  will not,
and will not permit any of  their respective Subsidiaries to, materially alter
the  character of  the business of  Holdings and  its Subsidiaries  taken as a
whole  from  that  conducted at  the  Initial  Borrowing  Date (including  any
material  expansion outside of  the offshore contract  drilling and production
business), provided that  this Section 8.01 shall not restrict the engaging in
business ancillary to the offshore contract drilling and production business.

            8.02  Consolidation, Merger or Sale of Assets,  etc.  Holdings and
the Borrower  will not, and will  not permit any of  the Subsidiary Guarantors
to, wind  up, liquidate or dissolve its affairs, or enter into any transaction
of merger or consolidation,  sell or otherwise dispose of all or substantially
all of its property  or assets or of any Collateral or agree  to do any of the
foregoing at any future time, except that the following shall be permitted:

            (a)  (i) any  Subsidiary of Holdings (other than the Borrower) may
      be merged  or consolidated  with or  into, or  be  liquidated into,  the
      Borrower (so long  as the Borrower is the surviving  corporation) or any
      Guarantor (so long as  such Guarantor is the surviving  corporation) and
      (ii) all  or any part of the business, properties and assets of Holdings
      or any of its  Subsidiaries (other than  the Borrower) may be  conveyed,
      leased, sold  or transferred  to the  Borrower or any  Guarantor or  any
      Subsidiary  of  the Borrower  or any  Guarantors,  provided that  if any
      Collateral  is transferred  pursuant to  this Section  8.02(a), Holdings
      and/or  the Borrower  shall provide  the Agent  with ten  Business Days'
      notice prior  to such transfer, and the  Borrower or such Subsidiary, as
      the  case may be, owning  the Collateral after  such transfer shall take
      all  action reasonably  requested  by the  Collateral  Agent and/or  the
      Trustee  in respect  of the  continued priority  and perfection  of such
      Collateral;

            (b)  Holdings may  liquidate or  dissolve or consolidate  or merge
      into  another entity, provided (i) Holdings is the successor or survivor
      in respect of such merger, and after giving effect thereto Holdings will
      be in full compliance with the terms of this Agreement and (ii) Standard
      & Poor's shall have affirmed  in writing that such transaction will  not
      impair Holdings' implied  senior debt rating  as such debt rating  is in
      effect  immediately prior  to the  announcement or consummation  of such
      liquidation, dissolution, consolidation or merger;

            (c)  other  sales or dispositions of assets  provided that (x) the
      Total Commitment shall be reduced as required by Section 3.03(c)  in the
      case  of the sale or  disposition of assets  constituting Collateral and
      (y) each such  sale or disposition shall be in an  amount at least equal
      to  the  fair market  value  thereof  (as  determined  by the  Board  of
      Directors of the Borrower in the case of sales in excess of $20,000,000)
      and for  proceeds consisting solely  of not less  than 100% cash  in the
      case  of  assets  constituting  Collateral  and  (z)  no  such  sale  or
      disposition  shall  constitute  the  sale  or   disposition  of  all  or
      substantially  all   of  the  combined   assets  of  Holdings   and  its
      Subsidiaries taken together; and

            (d)  other sales or  dispositions of  assets in each  case to  the
      extent  the Required Banks have consented in writing thereto and subject
      to such conditions as may be set forth in such consent.

            To the extent any Collateral is sold  or otherwise disposed of (to
any Person  other than Holdings  and its  Subsidiaries) as  permitted by  this
Section 8.02, such Collateral shall be  sold or otherwise disposed of free and
clear  of the  Liens created  by the  Security Documents,  and the  Agent, the
Collateral  Agent and  the Trustee  shall be  authorized to  take  any actions
deemed appropriate in order to effect the foregoing.

            8.03  Liens  on Collateral.  Holdings and  the Borrowers will not,
and  will not permit any  of their respective  Subsidiaries to, create, incur,
assume or  suffer to exist  any Lien upon or  with respect to  any Collateral,
whether now owned  or hereafter acquired, or sell any  such Collateral subject
to  an understanding or agreement, contingent or otherwise, to repurchase such
Collateral (including sales of  accounts receivable or notes with  recourse to
Holdings or any of its Subsidiaries) or assign any right to receive income, or
file or  permit the filing  of any financing  statement under  the UCC or  any
other similar  notice of Lien on any Collateral under any similar recording or
notice statute, except:

            (a)  Liens  for taxes  not  yet  due  or  Liens  for  taxes  being
      contested  in  good  faith  and  by appropriate  proceedings  for  which
      adequate reserves  with respect thereto,  in accordance with  GAAP, have
      been established;

            (b)  Liens  imposed by  law which  were incurred  in the  ordinary
      course  of business,  such as  carriers', warehousemen's  and mechanics'
      Liens,  statutory landlord's  Liens,  maritime Liens  and other  similar
      Liens arising in  the ordinary course of business, and  (x) which do not
      in the aggregate materially detract from the value of such Collateral or
      materially  impair the use  thereof in the operation  of the business of
      Holdings,  the Borrower or any  of their respective  Subsidiaries or (y)
      which  are being  contested  in good  faith  by appropriate  proceedings
      (including  the providing of bail), which proceedings have the effect of
      preventing the forfeiture or sale of the Collateral subject to such Lien
      or  procuring the release  of the Collateral  subject to  such Lien from
      arrest or detention;

            (c)  Liens created by or  pursuant to this Agreement or  the other
      Credit Documents;

            (d)   Liens permitted under the  express terms of the Mortgages or
      other Security Documents.

            (e)  Liens existing  on the Initial  Borrowing Date and  listed on
      Annex  VIII,  without giving  effect  to  any  subsequent extensions  or
      renewals thereof;

            (f)  Liens  arising  from judgments,  decrees  or attachments  (or
      securing of appeal bonds with respect thereto) to the extent not covered
      by insurance, so long as the  obligations in connection therewith do not
      exceed  $5,000,000 and  otherwise in  circumstances not  constituting an
      Event of Default under Section 9.08;

            (g)  any  interest or  title of  a lessor  or charterer  under any
      lease or charter (i)  in existence on the  Initial Borrowing Date,  (ii)
      among  Holdings  and/or  any  of its  Subsidiaries  or  (iii)  otherwise
      permitted by this Agreement; 

            (h)  immaterial  Liens on any Real Property of  Holdings or any of
      its Subsidiaries.

            8.04  Dividends; Restrictions on Subsidiaries, etc.  (a)  Holdings
will not, and will not  permit any of its Subsidiaries to, declare  or pay any
dividends  (other  than  dividends (i)  payable  solely  in  capital stock  of
Holdings  or rights  in  respect thereof  or  (ii) constituting  spin-offs  of
divisions  or direct or indirect operating subsidiaries of Holdings) or return
any capital  to, the stockholders of  Holdings or authorize or  make any other
distribution, payment or delivery of  property or cash to the stockholders  of
Holdings as such, or  redeem, retire, purchase or otherwise  acquire, directly
or indirectly, for  a consideration, any  shares of any  class of the  capital
stock of Holdings now or hereafter outstanding (or any warrants for or options
or stock appreciation rights  in respect of any of such shares),  or set aside
any funds for any of the foregoing purposes, or permit any of its Subsidiaries
to purchase or otherwise acquire for  consideration any shares of any class of
the capital stock of Holdings, now or hereafter outstanding (or any options or
warrants or stock appreciation rights  issued by Holdings with respect  to its
capital stock) (all of the foregoing "Dividends"), except that:

            (i)   Holdings may  redeem or repurchase common  stock of Holdings
      (or options to  purchase such common  stock) from (1) present  or former
      officers, employees and directors  of Holdings, the Borrower, or  any of
      their Subsidiaries (or their estates) upon the death, permanent disabil-
      ity,  retirement  or termination  of employment  of  any such  Person or
      otherwise in accordance with any stock option plan or any employee stock
      ownership plan,  or (2) stockholders of Holdings  so long as the purpose
      of such purchase is  to acquire common stock of  Holdings for reissuance
      to new officers, employees and directors (or their estates) of Holdings,
      the Borrower  or any of their  respective Subsidiaries to the  extent so
      reissued within 12  months of any  such purchase,  provided that in  all
      such cases  (x) no Default or  Event of Default is then  in existence or
      would arise  therefrom, (y)  the aggregate amount  of all  cash paid  in
      respect of  all such shares so  redeemed or repurchased  in any calendar
      year does not exceed $15,000,000 plus proceeds of key man life insurance
      used for  the purpose of  repurchasing such  common stock owned  by such
      Person  and,  provided further,  that in  the  event that  Holdings sub-
      sequently  resells to any member of its, or any Subsidiary's management,
      any shares redeemed  or repurchased  pursuant to this  clause (ii),  the
      amount  of repurchases  Holdings may make  from officers,  employees and
      directors pursuant to  this clause (ii) shall be increased  by an amount
      equal to any cash received by Holdings upon the resale of such shares;

            (ii)  Holdings  may pay or make Dividends on  (i) existing Class A
      common stock  and (ii) any issue of preferred stock whether now existing
      or hereafter issued; and

            (iii) so  long as no  Default or Event of  Default exists or would
      result therefrom, Holdings shall  be permitted to pay or  make Dividends
      in an  amount not to exceed,  in the aggregate, 50%  of Consolidated Net
      Income on a cumulative basis beginning January 1, 1996.

                  (b)  Holdings and the Borrower will not, and will not permit
any of  the Subsidiary Guarantors to,  create or otherwise cause  or suffer to
exist any encumbrance  or restriction which  prohibits or otherwise  restricts
(A) the ability of any Subsidiary Guarantor to (a) pay dividends or make other
distributions  or pay any Indebtedness owed to  the Borrower or any Subsidiary
Guarantor,  (b) make  loans  or advances  to the  Borrower  or any  Subsidiary
Guarantor, (c) transfer any of its properties or assets to the Borrower or any
Subsidiary  Guarantor  or  (B)  the  ability  of  the  Borrower  or any  other
Subsidiary Guarantor  of the Borrower  to create, incur,  assume or suffer  to
exist any  Lien upon its property  or assets to secure  the Obligations, other
than prohibitions or restrictions existing under or by reason of:

           (i) this Agreement and the other Credit Documents;

          (ii) applicable law;

         (iii) customary   non-assignment  provisions  entered   into  in  the
      ordinary course of business and consistent with past practices;

          (iv) any restriction  or encumbrance  with respect  to a  Subsidiary
      Guarantor imposed pursuant to  an agreement which has been  entered into
      for  the sale or disposition of all  or substantially all of the capital
      stock or  assets of such Subsidiary  Guarantor, so long as  such sale or
      disposition is permitted under this Agreement; and 

           (v) Permitted Liens and any documents  or instruments governing the
      terms  of  any Indebtedness  or other  obligations  secured by  any such
      Liens, provided that such prohibitions or restrictions apply only to the
      assets subject to such Liens.

            8.05  Transactions  with  Affiliates.  Holdings  and the  Borrower
will not, and  will not permit any of their  respective Subsidiaries to, enter
into any transaction  or series  of transactions after  the Initial  Borrowing
Date whether or  not in the  ordinary course of  business, with any  Affiliate
other than  on terms and conditions substantially  as favorable to Holdings or
such Subsidiary as would be  obtainable by Holdings or such Subsidiary  at the
time  in a  comparable arm's-length  transaction with  a Person other  than an
Affiliate, provided that  the foregoing  restrictions shall not  apply to  (i)
employment arrangements entered into  in the ordinary course of  business with
officers of Holdings and its Subsidiaries, (ii) customary fees paid to members
of the Board  of Directors of Holdings and of  its Subsidiaries, (iii) capital
contributions  made by Holdings to the Borrower, (iv) all transactions between
or among Holdings and  its Subsidiaries, (v) all immaterial  transactions with
the  officers  or  members of  the  Board  of  Directors  of Holdings  or  its
Subsidiaries and (vi) all immaterial transactions with Affiliates.

            8.06  Vessel Management; Registry.  Holdings and the Borrower will
not, and will not permit any of  their Subsidiaries to, (i) change the overall
management  of  any  of  the  Mortgaged  Rigs  from  Holdings  or  any of  its
Subsidiaries or (ii) change the national registry of any Mortgaged Rig.

            8.07  Coverage Ratio.  Holdings  will not permit the  ratio of (i)
Consolidated EBITDAR to  (ii) the  sum of Consolidated  Interest Expense  plus
Consolidated Rent Expense for  any period of four consecutive  fiscal quarters
of Holdings (taken as one accounting period) to be less than 2.00:1.00.

            8.08  Working  Capital.  Holdings will not  permit Working Capital
on  the last day of any two consecutive fiscal quarters of Holdings to be less
than $0.

            8.09  Leverage Ratio.  Holdings will not permit the Leverage Ratio
(i)  at the end of  any fiscal quarter  ending prior to the  date which is two
years after the date of this  Agreement to be greater than 0.50:1.00 and  (ii)
at  the  end of  any  fiscal  quarter ending  thereafter  to  be greater  than
0.40:1.00.

            8.10  Collateral  Maintenance.  Holdings  shall  not   permit  the
Market Value of the Mortgaged Rigs at any  time to be less than 1.6 times  the
Total Commitment.

            SECTION  9.  Events of Default.  Upon the occurrence of any of the
following specified events (each an "Event of Default"):

            9.01  Payments.  The  Borrower shall  (i)  default in  the payment
when due of any principal of the Loans and such default shall continue for two
or more  Business Days or  (ii) default, and  such default shall  continue for
three or more Business  Days after notice by the Agent  or the Required Banks,
in  the payment when due  of any Unpaid Drawing, any  interest on the Loans or
any  Fees or  any other  amounts  owing hereunder  or under  any other  Credit
Document; or

            9.02  Representations,   etc.  Any  representation,   warranty  or
statement  made by any Credit Party herein or  in any other Credit Document or
in any statement or certificate delivered or required to be delivered pursuant
hereto or thereto shall prove to be untrue in any material respect on the date
as of which made or deemed made; or

            9.03  Covenants.  Holdings or  the Borrower shall  (a) default  in
the  due performance or  observance by it  of any term,  covenant or agreement
contained in Section 7.08  or Section 8 or (b) default  in the due performance
or  observance by  it of  any term,  covenant or  agreement (other  than those
referred to  in Section 9.01, 9.02  or clause (a)  of this Section  9.03) con-
tained  in this  Agreement and such  default shall  continue unremedied  for a
period of at least  30 days after notice to  the Borrower by the Agent  or the
Required Banks; or

            9.04  Default Under Other Agreements.  (a)  Holdings, the Borrower
or any  of their respective Subsidiaries shall (i) default in any payment with
respect to any Indebtedness (other than the Obligations) beyond the period  of
grace, if  any, applicable thereto or  (ii) default in the  observance or per-
formance of any agreement  or condition relating to  any such Indebtedness  or
contained in  any instrument  or  agreement evidencing,  securing or  relating
thereto, or  any other  event shall  occur or condition  exist, the  effect of
which default  or other  event  or condition  results in  acceleration or  the
renegotiation of the material payment terms of any such Indebtedness to become
due prior to its stated maturity; or (b) any  such Indebtedness of Holdings or
any of its Subsidiaries  shall be declared to be due and  payable, or required
to be prepaid other  than by a regularly scheduled required  prepayment, prior
to the stated maturity thereof, provided that it shall not constitute an Event
of Default pursuant to this Section 9.04 unless the aggregate principal amount
of such Indebtedness in default exceeds $1,000,000 at any one time; or

            9.05  Bankruptcy,  etc.  Holdings, the  Borrower or  any  of their
respective  Subsidiaries shall  commence  a voluntary  case concerning  itself
under Title  11 of  the United  States Code entitled  "Bankruptcy", as  now or
hereafter in effect, or any  successor thereto (the "Bankruptcy Code");  or an
involuntary  case is commenced against Holdings, the  Borrower or any of their
respective Subsidiaries and the  petition is not controverted within  10 days,
or  is not  dismissed within 60  days, after  commencement of  the case;  or a
custodian (as  defined in  the  Bankruptcy Code)  is appointed  for, or  takes
charge of, all or substantially all of the property of  Holdings, the Borrower
or any of  their respective Subsidiaries; or Holdings, the  Borrower or any of
their  respective  Subsidiaries  commences  any  other  proceeding  under  any
reorganization,  arrangement,  adjustment of  debt,  relief  of debtors,  dis-
solution, insolvency or liquidation or similar law of any jurisdiction whether
now or hereafter in effect relating to  Holdings, the Borrower or any of their
respective Subsidiaries; or there is commenced  against Holdings, the Borrower
or any  of their  respective Subsidiaries  any such  case or proceeding  which
remains undismissed for a period of 60 days; or  Holdings, the Borrower or any
of  their respective Subsidiaries is adjudicated insolvent or bankrupt; or any
order  of relief  or other  order  approving any  such case  or proceeding  is
entered;  Holdings,  the  Borrower  or any  of  their  respective Subsidiaries
suffers any appointment of any custodian or the like for it or any substantial
part of its property to  continue undischarged or unstayed for a  period of 60
days; or Holdings, the Borrower or any  of their respective Subsidiaries makes
a general assignment for the benefit of creditors; or any  corporate action is
taken by Holdings, the  Borrower or any  of their respective Subsidiaries  for
the purpose of effecting any of the foregoing; or

            9.06  Security Documents.  (i) Any  Security Document shall, after
the  execution and delivery thereof, cease to  be in full force and effect, or
shall cease to give the Collateral  Agent or the Trustee, as the case  may be,
the  Liens, rights, powers and  privileges purported to  be created thereby in
favor of the Collateral  Agent or the Trustee, as the case may be, or (ii) any
Credit Party shall default in any respect in the due performance or observance
of  any term, covenant or  agreement on its  part to be  performed or observed
pursuant  to any such Security Document  and such default (unless such default
creates an Event of Default under clause (i) above) shall continue  unremedied
for a period of at least 30 days after notice to the Borrower by the Agent  or
the Required Banks; or

            9.07  Guaranty.  Any Guaranty or any provision thereof shall cease
to be in full force and effect, or any Guarantor or any Person acting by or on
behalf of such Guarantor  shall deny or disaffirm  all or any portion of  such
Guarantor's  obligation thereunder,  or  any Guarantor  shall  default in  the
observance of any term,  covenant or agreement on its part to  be performed or
observed pursuant thereto  and such  default (other than  any default  arising
from a failure to make any payment thereunder) shall continue unremedied for a
period of at least  30 days after notice to  the Borrower by the Agent  or the
Required Banks; or

            9.08  Judgments.  One  or  more  judgments  or  decrees  shall  be
entered against Holdings, the Borrower  or any other Credit Party involving  a
liability of $1,000,000 or more in the case of any one such judgment or decree
and $5,000,000 or more in the aggregate for all such judgments and decrees for
Holdings, the Borrower and the other Credit Parties (not paid or to the extent
not covered by  insurance) and any  such judgments or  decrees shall not  have
been  vacated, discharged or  stayed or bonded  pending appeal  within 60 days
from the entry thereof; or

            9.09  Citizenship.  Any Mortgagor  shall cease to be  qualified to
own  and operate the Mortgaged  Rigs under the laws  of the United States, the
Republic of Panama, Australia and the Bahamas, as may be applicable; or

            9.10  Employee Benefit Plans. (a)(i) A contribution required to be
made  with respect  to any (x)  employee pension  benefit plan  (as defined in
Section  3(2) of ERISA) maintained or contributed  to by (or to which there is
an obligation to contribute of) Holdings or a Subsidiary or an ERISA Affiliate
or (y) Foreign Pension Plan has not  been timely made or (ii) Holdings or  any
Subsidiary has incurred  or is likely to incur liabilities  pursuant to one or
more employee welfare benefit plans (as defined in Section 3(1) of ERISA) that
provide benefits to retired employees or other former employees (other than as
required  by Section  601  of ERISA)  or employee  pension  benefit plans  (as
defined in Section 3(2) of ERISA); (b) there shall result from any such  event
or events the imposition of a lien, the granting of a security interest,  or a
liability  or  a  material risk  of  incurring a  liability;  (c)  which lien,
security  interest or liability, individually, and/or in the aggregate, in the
opinion of the Required Banks, will have a Material Adverse Effect;

            9.11  Change of Control.  A Change of Control shall occur;

then,  and in  any such  event, and at  any time  thereafter, if  any Event of
Default shall then be continuing, the Agent shall, upon the written request of
the Required Banks, by written notice to  the Borrower, take any or all of the
following actions, without prejudice to the rights of the Agent or any Bank to
enforce  its claims against any Credit Party, except as otherwise specifically
provided  for in this Agreement (provided that,  if an Event of Default speci-
fied in  Section 9.05  shall occur  with respect to  the Borrower,  the result
which would occur upon the giving of written notice by  the Agent as specified
in clauses (i) and (ii) below shall occur automatically without  the giving of
any such notice):  (i) declare the Total  Commitment terminated, whereupon the
Commitment  of  each  Bank  shall  forthwith  terminate  immediately  and  any
Commitment Commission or any other Fees shall forthwith become due and payable
without any other notice of  any kind; (ii) declare  the principal of and  any
accrued interest in  respect of all Loans and all  obligations owing hereunder
(including Unpaid Drawings)  and thereunder  to be, whereupon  the same  shall
become,  forthwith due  and payable  without presentment,  demand, protest  or
other notice of any kind, all of which are hereby waived by each Credit Party;
(iii)  enforce, as  Collateral  Agent  (or  direct  the  Collateral  Agent  to
enforce), any or  all of the Liens and security  interests created pursuant to
the  Security Documents;  (iv) terminate  any Letter  of Credit  which may  be
terminated  in accordance with its terms; (v)  direct the Borrower to pay (and
the Borrower hereby agrees upon receipt of such notice, or upon the occurrence
of any Event of Default specified in Section 9.05  in respect of the Borrower,
it  will pay) to  the Collateral Agent  at the Payment  Office such additional
amounts of cash, to be held as security for the Borrower's reimbursement obli-
gations in respect  of Letters of Credit then outstanding  equal to the aggre-
gate Stated Amount of all  Letters of Credit then outstanding; and  (vi) apply
any amounts held as cash collateral pursuant to Section 4.02 or this Section 9
to repay Obligations.

            SECTION  10.  Definitions. As used  herein,  the  following  terms
shall  have  the  meanings  herein  specified  unless  the  context  otherwise
requires.   Defined  terms in  this  Agreement shall  include in  the singular
number the plural and in the plural the singular:

            "Adjusted Commitment"  for each Non-Defaulting Bank  shall mean at
any time the product of such Bank's Adjusted Percentage and the Adjusted Total
Commitment.

            "Adjusted  Percentage" shall  mean  (x) at  a  time when  no  Bank
Default exists, for each Bank  such Bank's Percentage and (y) at a time when a
Bank Default exists (i) for each Bank that is a Defaulting Bank, zero and (ii)
for each  Bank that is  a Non-Defaulting  Bank, the  percentage determined  by
dividing such Bank's Commitment at such time by the Adjusted Total  Commitment
at such  time, it being understood  that all references  herein to Commitments
and the Adjusted Total Commitment at a time when the Total Commitment has been
terminated  shall  be   references  to  the  Commitments   or  Adjusted  Total
Commitment, as  the case may be,  in effect immediately prior  to such termin-
ation, provided  that (A) no Bank's Adjusted  Percentage shall change upon the
occurrence of  a Bank Default  from that in  effect immediately prior  to such
Bank Default if, after giving effect to such Bank Default and any repayment of
Loans at such time pursuant to Section 4.02(A)(a) or otherwise, the sum of (i)
the  aggregate outstanding  principal  amount of  Loans of  all Non-Defaulting
Banks plus (ii) the Letter of Credit Outstandings, exceeds  the Adjusted Total
Commitment; (B) the changes to the Adjusted Percentage that would have  become
effective  upon the  occurrence of  a  Bank Default  but that  did not  become
effective as  a result of the  preceding clause (A) shall  become effective on
the first  date after the occurrence of the relevant Bank Default on which the
sum of (i) the aggregate outstanding principal amount of the Loans of all Non-
Defaulting Banks  plus (ii) the Letter  of Credit Outstandings is  equal to or
less than  the Adjusted  Total Commitment;  and  (C) if  (i) a  Non-Defaulting
Bank's Adjusted Percentage is changed pursuant to the preceding clause (B) and
(ii) any repayment of such Bank's Loans, or of Unpaid Drawings with respect to
Letters of Credit, that were made during the period commencing  after the date
of  the relevant  Bank Default and  ending on the  date of such  change to its
Adjusted Percentage  must be  returned to the  Borrower as  a preferential  or
similar payment  in any bankruptcy or similar proceeding of the Borrower, then
the change to such Non-Defaulting Bank's Adjusted Percentage effected pursuant
to said clause (B) shall  be reduced to that positive change, if any, as would
have been made to its Adjusted Percentage if (x) such  repayments had not been
made and (y) the maximum change to its Adjusted Percentage would have resulted
in the sum of the outstanding principal  of Loans made by such Bank plus  such
Bank's new Adjusted Percentage  of the outstanding principal amount  of Letter
of Credit Outstandings equalling such Bank's Commitment at such time. 

            "Adjusted Total  Commitment"  shall mean  at  any time  the  Total
Commitment less the aggregate Commitments of all Defaulting Banks.

            "Affected  Loan"  shall  have  the  meaning  provided  in  Section
4.02(B).

            "Affiliate"  shall mean,  with respect  to any  Person, any  other
Person  directly or indirectly controlling  (including but not  limited to all
directors and  officers of  such Person),  controlled by,  or under direct  or
indirect common control with such Person.  A Person shall be deemed to control
a corporation if such Person possesses, directly or  indirectly, the power (i)
to vote  10% or more  of the securities having  ordinary voting power  for the
election  of directors  of such  corporation or  (ii) to  direct or  cause the
direction  of the management and policies of such corporation, whether through
the ownership of voting securities, by contract or otherwise.

            "Agent"  shall have the meaning provided in the first paragraph of
this Agreement and shall include any successor to the Agent appointed pursuant
to Section 11.09.

            "Agreement" shall mean this  Credit Agreement, as the same  may be
from time to time modified, amended and/or supplemented.

            "Applicable Margin" shall mean 1 % per annum.

            "Approved Bank" shall have the meaning  provided in the definition
of "Cash Equivalents."

            "Approved  Company"  shall  have   the  meaning  provided  in  the
definition of "Cash Equivalents."

            "Approved  Shipbroker"   shall  mean  each   of  the  first-class,
international, independent, sale-and-purchase Shipbrokers of offshore drilling
units listed on Annex  IX, as such Annex may  be revised from time to  time at
the  request of  the Required Banks  with the  consent of  the Borrower, which
consent shall not be unreasonably withheld.

            "Assignment and  Assumption Agreement"  shall mean  the Assignment
and Assumption Agreement substantially in the form of Exhibit M (appropriately
completed).

            "Assignor" shall mean Reading & Bates Drilling Co.

            "Australian  Rig"  shall  mean   the  offshore  drilling  rig  Ron
Tappmeyer.

            "Authorized  Officer" shall  mean any  officer of Holdings  or the
Borrower designated  as  such in  writing  to the  Agent  by Holdings  or  the
Borrower.

            "Bahamian Rig" shall mean the offshore drilling rig J.W. McLean.

            "Bank" shall have the  meaning provided in the first  paragraph of
this Agreement.

            "Bank  Default" shall  mean (i)  the refusal  (which has  not been
retracted) of a Bank to make available its portion of any Loans or to fund its
portion  of any  unreimbursed payment  under Section  2.04(c)  or (ii)  a Bank
having  notified the  Agent and/or  the Borrower  that it  does not  intend to
comply with  the obligations under Section  1.01 or under Section  2.04(c), in
the case of either (i) or (ii) as a result of the appointment of a receiver or
conservator with respect to such Bank at the direction or request of any regu-
latory agency or authority.

            "Bankruptcy Code" shall have the meaning provided in Section 9.05.

            "Borrower" shall have the meaning provided  in the first paragraph
of this Agreement.

            "Borrowing" shall  mean the  incurrence of  Loans pursuant to  the
Facility by  the Borrower from all of the Banks  with respect to such Facility
on a pro rata basis on a given date, and having the same Interest Period.

            "Business  Day"  shall mean  (i) for  all  purposes other  than as
covered by clause (ii) below,  any day excluding Saturday, Sunday and  any day
which shall be in  the Cities of New York  and/or London a legal holiday  or a
day on which banking institutions are authorized  by law or other governmental
actions to  close and (ii) with  respect to all notices  and determinations in
connection  with, and payments  of principal and  interest on, Loans,  any day
which is a Business  Day described in clause (i)  and which is also a  day for
trading by  and  between  banks  in  U.S. dollar  deposits  in  the  interbank
Eurodollar market.

            "Capital Expenditures" shall mean, with respect to any Person, all
expenditures by such  Person which  should be capitalized  in accordance  with
GAAP, including all  such expenditures with respect to fixed or capital assets
(including, without limitation, expenditures for maintenance and repairs which
should be capitalized in accordance with generally accepted accounting princi-
ples) and the amount of Capitalized Lease Obligations incurred by such Person.

            "Capital Lease" as applied to  any Person shall mean any  lease of
any property (whether real, personal or mixed) by that Person as lessee which,
in  conformity with GAAP, is  accounted for as a  capital lease on the balance
sheet of that Person.

            "Capitalized Lease  Obligations" shall mean  all obligations under
Capital  Leases of Holdings or  any of its Subsidiaries in  each case taken at
the amount thereof accounted for as liabilities in accordance with GAAP.

            "Cash Equivalents"  shall mean  (i) securities issued  or directly
and fully guaranteed or insured by the United  States of America or any agency
or instrumentality  thereof (provided  that the full  faith and credit  of the
United States of  America is pledged in support thereof)  having maturities of
not more  than six  months  from the  date of  acquisition,  (ii) U.S.  dollar
denominated time deposits, certificates of deposit and bankers' acceptances of
(x) any Bank,  (y) any domestic commercial bank  of recognized standing having
capital and  surplus in excess of $500,000,000 or (z)  any bank (or the parent
company of such bank) whose short-term commercial paper rating from Standard &
Poor's Corporation ("S&P") is at  least A-1 or the equivalent thereof  or from
Moody's Investors Service, Inc. ("Moody's") is at least  P-1 or the equivalent
thereof (any such  bank, an "Approved Bank"), in each  case with maturities of
not  more than  six  months from  the  date of  acquisition,  (iii) repurchase
obligations with a term of not more than seven days  for underlying securities
of the types described in clause (i) above  entered into with any bank meeting
the  qualifications specified  in  clause (ii)  above,  (iv) commercial  paper
issued by any Bank  or Approved Bank or by  the parent company of any  Bank or
Approved Bank and commercial paper issued by, or guaranteed by, any industrial
or financial company with a short-term commercial paper rating of at least A-1
or the equivalent thereof by S&P or at least P-1 or  the equivalent thereof by
Moody's  (any such  company,  an "Approved  Company"),  or guaranteed  by  any
industrial company with a long term unsecured debt rating of at least A or A2,
or the equivalent of each  thereof, from S&P or  Moody's, as the case may  be,
and  in each case maturing within six months after the date of acquisition and
(v) investments in  money market funds substantially  all of whose  assets are
comprised of  securities of  the type  described in  clauses (i)  through (iv)
above.

            "Cash  Proceeds"  shall  mean,  with  respect  to  any  Collateral
Disposition, the aggregate cash  payments (including any cash received  by way
of deferred payment pursuant  to a note receivable  issued in connection  with
such Collateral Disposition, other  than the portion of such  deferred payment
constituting interest, but only as and when so  received) received by Holdings
and/or any Subsidiary from such Collateral Disposition.

            "CBK" shall mean Christiania Bank og Kreditkasse, New York Branch.

            "CERCLA"  shall mean  the  Comprehensive  Environmental  Response,
Compensation, and Liability Act of 1980, as amended, 42 U.S.C.  9601 et seq.

            "Change  of Control"  shall mean  (a) Holdings  shall at  any time
cease  to  own 100%  of the  capital  stock of  the Borrower  or,  directly or
indirectly, any Subsidiary  Guarantor, (b) any "person" (as such  term is used
in Sections 13(d) and 14(d) of the Exchange Act), is or becomes the beneficial
owner (as defined  in Rules 13d-3 and 13d-5 under  the Exchange Act), directly
or indirectly, of  more than 50% of the total voting power of the Voting Stock
of Holdings  or (c) during any period of two consecutive years individuals who
at the beginning of such period constituted the Board of Directors of Holdings
(together with any new directors whose  election by such Board of Directors or
whose nomination for election by the stockholders of Holdings was  approved by
a  vote of a  majority of the directors  of Holdings then  still in office who
were either  directors at the  beginning of such  period or whose  election or
nomination for  election was previously so  approved) cease for any  reason to
constitute a majority of the Board of Directors of Holdings then in office.

            "Claims"  shall have  the meaning  provided in  the definition  of
"Environmental Claims."

            "Code"  shall mean the Internal  Revenue Code of  1986, as amended
from time  to  time and  the regulations  promulgated and  the rulings  issued
thereunder.  Section references  to the Code are to the Code,  as in effect at
the  Effective  Date and  any subsequent  provisions  of the  Code, amendatory
thereof, supplemental thereto or substituted therefor.

            "Collateral" shall mean all  of the Security Agreement Collateral,
the Collateral Assignment  of Insurance  Collateral, the "Rig"  as defined  in
each of  the Mortgages  and any cash  collateral delivered  to the  Collateral
Agent pursuant to this Agreement.

            "Collateral Agent" shall mean the Agent acting as collateral agent
for the Banks.

            "Collateral  Assignment  of  Insurance"  shall  have  the  meaning
provided in Section 5.18.

            "Collateral Assignment  of Insurance  Collateral"  shall mean  all
"Collateral" as defined in the Collateral Assignments of Insurance.

            "Collateral  Disposition" shall  mean  (i) the  sale, transfer  or
other voluntary disposition  by the  Borrower or any  Guarantor to any  Person
other than the  Borrower or any Guarantor of any asset of the Borrower or such
Guarantor constituting Collateral or (ii) any Total Loss of any Mortgaged Rig.

            "Commitment" shall mean, with respect to each Bank, the amount set
forth opposite such Bank's name in  Annex I directly below the column entitled
"Commitment," as the  same may be  (x) reduced from  time to time  pursuant to
Sections 3.02, 3.03 and/or 9 or (y) adjusted from  time to time as a result of
assignments to or from such Bank pursuant to Section 12.04.

            "Commitment   Commission"  shall  have  the  meaning  provided  in
Section 3.01(a).

            "Concentration Account" shall have the meaning provided in Section
5.19.

            "Consolidated Capital  Expenditures" shall mean,  for any  period,
the aggregate  of  all  expenditures  (whether  paid in  cash  or  accrued  as
liabilities  and including in all  events all amounts  expended or capitalized
under  Capital Leases)  by Holdings  and its  Subsidiaries during  that period
that, in  conformity with  GAAP, are  or are  required to be  included in  the
property,  plant or equipment reflected  in the consolidated  balance sheet of
Holdings and its Subsidiaries, provided that Consolidated Capital Expenditures
shall in  any event include  the purchase  price paid in  connection with  the
acquisition  of  any Person  (including  through the  purchase of  all  of the
capital stock or other ownership interests of such Person or through merger or
consolidation) to the extent  allocable to   "drilling and other property  and
equipment"  provided, further,  that Consolidated  Capital  Expenditures shall
only include the amount thereof actually paid in cash during such period.

            "Consolidated Current  Assets" shall  mean, the current  assets of
Holdings and its Subsidiaries determined on a consolidated basis in accordance
with GAAP, including cash and Cash Equivalents.

            "Consolidated  Current   Liabilities"  shall  mean,   the  current
liabilities  of Holdings  and its  Subsidiaries determined  on a  consolidated
basis in  accordance with GAAP, but  excluding the current portion  of and the
accrued but unpaid interest on any Indebtedness under this Agreement or  under
the Holdings Convertible Debentures.

            "Consolidated EBIT" shall mean, for any period, (A) the sum of the
amounts  for such period  of (i) Consolidated Net  Income, (ii) provisions for
taxes based on income, (iii) Consolidated Interest Expense, (iv)  amortization
or write-off of deferred financing costs to the extent deducted in determining
Consolidated Net  Income and (v) losses on sales of assets (excluding sales in
the ordinary course  of business) and other extraordinary losses  less (B) the
amount  for such period of  gains on sales  of assets (excluding  sales in the
ordinary  course of business) and other extraordinary gains, all as determined
on a consolidated basis in accordance with GAAP.

            "Consolidated  EBITDAR" shall mean, for any period, the sum of the
amounts for such period  of (i) Consolidated EBIT, (ii)  depreciation expense,
(iii)  amortization  expense  and  (iv)  Consolidated  Rent  Expense,  all  as
determined on a consolidated basis in accordance with GAAP.

            "Consolidated  Indebtedness"  shall   mean,  all  Indebtedness  of
Holdings and its Subsidiaries calculated on a consolidated basis in accordance
with GAAP.

            "Consolidated Interest Expense" shall  mean, for any period, total
interest expense  (including that attributable to Capital  Leases) of Holdings
and its  Subsidiaries in  accordance with  GAAP on  a consolidated basis  with
respect  to all  outstanding Indebtedness  of Holdings  and its  Subsidiaries,
including, without limitation, all  commissions, discounts and other  fees and
charges  owed  with  respect to  letters  of  credit  and bankers'  acceptance
financing.

            "Consolidated  Net Income"  shall  mean for  any  period, the  net
income (or  loss) of Holdings and its Subsidiaries on a consolidated basis for
such  period taken as a single accounting period determined in conformity with
GAAP.

            "Consolidated  Net Worth"  shall mean,  at any  time, shareholders
equity  (excluding treasury  stock)  of Holdings  and  its Subsidiaries  on  a
consolidated basis determined in accordance with GAAP.

            "Consolidated Rent  Expense" shall mean  for any period,  the rent
expense of  Holdings and  its Subsidiaries  on a  consolidated basis  for such
period taken as a single accounting period determined in accordance with GAAP.

            "Contingent  Obligations"   shall  mean  as  to   any  Person  any
obligation  of  such  Person  guaranteeing  or  intending  to  guarantee   any
Indebtedness  ("primary  obligations")  of  any  other  Person  (the  "primary
obligor") in  any manner, whether  directly or indirectly,  including, without
limitation,  any obligation of such Person,  whether or not contingent, (a) to
purchase  any such primary obligation  or any property  constituting direct or
indirect  security therefor,  (b)  to  advance or  supply  funds (i)  for  the
purchase or payment of any such primary obligation or (ii) to maintain working
capital or equity capital of the  primary obligor or otherwise to maintain the
net worth  or  solvency of  the  primary obligor,  (c) to  purchase  property,
securities or services primarily for the purpose of assuring the  owner of any
such primary obligation of the ability  of the primary obligor to make payment
of  such primary obligation  or (d) otherwise  to assure or  hold harmless the
owner of such  primary obligation  against loss in  respect thereof,  provided
however, that the term Contingent Obligation shall not include endorsements of
instruments for deposit or collection in the ordinary course of business.  The
amount of any  Contingent Obligation shall be deemed to be  an amount equal to
the stated  or determinable  amount of  the primary obligation  in respect  of
which such Contingent Obligation  is made or, if  not stated or  determinable,
the maximum reasonably anticipated liability in respect thereof (assuming such
Person is required to perform thereunder) as determined by such Person in good
faith.

            "Credit  Documents"  shall mean  this  Agreement,  the Notes,  the
Security  Documents and each Guaranty and any documents executed in connection
therewith.

            "Credit Event"  shall mean and include the making of a Loan or the
issuance of a Letter of Credit.

            "Credit  Party"  shall  mean   Holdings,  the  Borrower  and  each
Subsidiary Guarantor.

            "Default" shall mean any event, act or condition which with notice
or lapse of time, or both, would constitute an Event of Default.

            "Defaulting Bank" shall mean any Bank with respect to which a Bank
Default is in effect.

            "Dividends" shall have the meaning provided in Section 8.04.

            "Earnings"  shall have  the definition provided   in  the Security
Agreement.

            "Effective Date" shall have the meaning provided in Section 12.10.

            "Eligible Transferee"  shall mean  and include a  commercial bank,
financial institution or other "accredited investor" (as defined by Regulation
D of the Securities Act of 1933).

            "Employee Benefit Plan" shall have the meaning provided in Section
5.06(i).

            "Employment Agreements" shall have the meaning provided in Section
5.06(vi).

            "Environmental   Claims"   means  any   and   all  administrative,
regulatory or judicial actions, suits, demands, demand letters, claims, liens,
notices  of noncompliance  or violation,  investigations (other  than internal
reports prepared by Holdings or any of its Subsidiaries solely in the ordinary
course of such Person's business and not in response to any third party action
or  request   of  any  kind)  or  proceedings  relating  in  any  way  to  any
Environmental Law or any permit issued, or any approval given,  under any such
Environmental  Law  (hereafter,   "Claims"),  including,  without  limitation,
(a) any   and  all  Claims  by  governmental  or  regulatory  authorities  for
enforcement, cleanup, removal,  response, remedial or other actions or damages
pursuant to  any applicable Environmental Law,  and (b) any and  all Claims by
any third party seeking damages, contribution, indemnification, cost recovery,
compensation or  injunctive relief resulting from  Hazardous Materials arising
from alleged injury or threat of injury to health, safety or the environment.

            "Environmental Law" means  any applicable Federal, state,  foreign
or  local statute, law, rule,  regulation, ordinance, code,  guide, policy and
rule of common law now or hereafter in effect and in each case as amended, and
any judicial or administrative  interpretation thereof, including any judicial
or  administrative  order,  consent  decree   or  judgment,  relating  to  the
environment, health, safety or Hazardous Materials, including, without limita-
tion, CERCLA;  RCRA; the Federal Water  Pollution Control Act,  as amended, 33
U.S.C.  1251 et  seq.; the Toxic   Substances Control Act,  15 U.S.C.  7401 et
seq.; the Clean  Air Act, 42 U.S.C.    7401 et seq.;  the Safe Drinking  Water
Act, 42 U.S.C.   3808 et seq.; the Oil Pollution Act of 1990, 33 U.S.C.   2701
et seq. and  any applicable state and local or  foreign counterparts or equiv-
alents.

            "ERISA" shall mean the Employee Retirement Income Security  Act of
1974,  as  amended from  time  to time,  and  the regulations  promulgated and
rulings issued  thereunder.  Section references  to ERISA are to  ERISA, as in
effect at the  Effective Date and any  subsequent provisions of  ERISA, amend-
atory thereof, supplemental thereto or substituted therefor.

            "ERISA Affiliate"  shall mean each  person (as defined  in Section
3(9) of  ERISA) which together with Holdings or any Subsidiary would be deemed
to be a "single employer" (i) within the meaning of Sections 414(b),  (c), (m)
and (o) of the Code or (ii) as a result of Holdings or any Subsidiary being or
having been a general partner of such person.

            "Eurodollar Rate" shall mean with  respect to each Interest Period
for a  Loan, the  offered  rate (rounded  upward to  the nearest  1/16 of  one
percent) for deposits  of Dollars for a period equivalent to such period at or
about 11:00  a.m. (London time)  on the second  London Banking Day  before the
first  day  of such  period as  is displayed  on  Telerate page  3750 (British
Bankers' Association Interest  Settlement Rates)  (or such other  page as  may
replace  such  page  3750  on  such  system or  on  any  other  system  of the
information  vendor  for the  time being  designated  by the  British Bankers'
Association  to calculate the BBA Interest Settlement  Rate (as defined in the
British  Bankers'  Association's Recommended  Terms  and  Conditions ("BBAIRS"
terms) dated  August 1985)), provided that if on such  date no such rate is so
displayed, the Eurodollar Rate for such period shall be the rate quoted to the
Agent as the  offered rate for deposits of Dollars  in an amount approximately
equal  to the  amount  in relation  to  which  the Eurodollar  Rate  is to  be
determined for a period equivalent to such period by prime banks in the London
Interbank Market  at or about 11:00  a.m. (London time) on  the second Banking
Day before the first day of such period.

            "Event of Default" shall have the meaning provided in Section 9.

            "Existing  Credit  Agreement"  shall  mean  the  Credit   Facility
Agreement,  dated as  of  November 16,  1995,  by and  among  Reading &  Bates
Drilling Co. and Reading & Bates Exploration Co. as Borrowers, Reading & Bates
Corporation  as Guarantor, the Lenders  party thereto and  Christiania Bank og
Kreditkasse, as Agent.

            "Existing Indebtedness" shall have the meaning provided in Section
6.19.

            "Existing Indebtedness Agreements" shall have the meaning provided
in Section 5.06.

            "Existing Letter of  Credit" shall  have the  meaning provided  in
Section 2.01(a).

            "Facility" shall  mean the credit facility  established under this
Agreement, evidenced by the Total Commitment.

            "Facing Fee" shall have the meaning provided in Section 3.01(c).

            "Federal Funds  Effective  Rate"  shall mean  for  any  period,  a
fluctuating  interest  rate equal  for  each  day during  such  period to  the
weighted average of  the rates  on overnight Federal  Funds transactions  with
members of the  Federal Reserve System arranged  by Federal Funds brokers,  as
published for such day  (or, if such day is  not a Business Day, for  the next
preceding Business Day) by  the Federal Reserve Bank of New  York, or, if such
rate is not so published  for any day which is a Business Day,  the average of
the quotations  for such day on  such transactions received by  the Agent from
three Federal Funds brokers of recognized standing selected by the Agent.

            "Fees"  shall mean all amounts payable pursuant to, or referred to
in, Section 3.01.

            "Foreign Pension  Plan" means  any plan, fund  (including, without
limitation, any superannuation  fund) or other similar  program established or
maintained outside the United States of America by Holdings or any one or more
of its Subsidiaries primarily for the benefit of employees of Holdings or such
Subsidiaries residing outside the  United States of America, which  plan, fund
or  other  similar  program provides,  or  results  in,  retirement income,  a
deferral of income in contemplation of  retirement or payments to be made upon
termination of employment, and which plan is not subject to ERISA or the Code.

            "GAAP" shall mean generally  accepted accounting principles in the
United States of  America as in effect on the date of this Agreement; it being
understood and agreed that determinations in accordance with GAAP for purposes
of Section  8, including defined  terms as used  therein, are subject  (to the
extent provided therein) to Section 12.07(a).

            "Guaranteed  Obligations"  shall  mean  all  obligations   of  the
Borrower to each Bank for the full and prompt payment when due (whether at the
stated maturity, by acceleration  or otherwise) of the principal  and interest
on each Note  issued by the Borrower  to such Bank, and Loans  made, under the
Credit Agreement  and all reimbursement  obligations and Unpaid  Drawings with
respect to Letters of Credit, together with all the other obligations and lia-
bilities  (including,  without  limitation,  indemnities,  fees  and  interest
thereon)  of the  Borrower to  such Bank  now existing  or hereafter  incurred
under, arising out of or in connection  with the Credit Agreement or any other
Credit Document  and the due  performance and compliance  with all  the terms,
conditions and agreements contained in the Credit Documents by the Borrower.

            "Guarantor" shall mean each Subsidiary Guarantor and Holdings.

            "Guaranty" shall mean the guaranty of Holdings pursuant to Section
13 hereof and the Subsidiaries Guaranty.

            "Hazardous  Materials"  means  (a)  any  petroleum  or   petroleum
products, radioactive materials, asbestos  in any form that is or could become
friable, urea  formaldehyde foam  insulation, transformers or  other equipment
that contained, electric fluid containing levels of polychlorinated biphenyls,
and  radon  gas; (b)  any  chemicals, materials  or  substances defined  as or
included  in  the definition  of  "hazardous  substances," "hazardous  waste,"
"hazardous  materials,"  "extremely  hazardous waste,"  "restricted  hazardous
waste,"   "toxic   substances,"   "toxic   pollutants,"   "contaminants,"   or
"pollutants," or  words of similar import, under  any applicable Environmental
Law; and (c)  any other chemical, material or substance,  exposure to which is
prohibited, limited or regulated by any governmental authority.

            "Holdings" shall have the meaning provided in the  first paragraph
of this Agreement.

            "Holdings Convertible  Debentures" shall mean Holdings'  8% Senior
Subordinated Convertible Debentures due December 1998.

            "Indebtedness" of  any Person  shall mean without  duplication (i)
all indebtedness of such Person for borrowed money, (ii) the deferred purchase
price  of assets or services  which in accordance with  GAAP would be shown on
the liability side of the balance sheet of such Person,  (iii) the face amount
of all  letters of credit issued  for the account of such  Person and, without
duplication,  all drafts drawn thereunder,  (iv) all Indebtedness  of a second
Person secured by any Lien on any property owned by such first Person, whether
or  not  such  indebtedness  has  been  assumed,  (v)  all  Capitalized  Lease
Obligations  of such  Person, (vi)  all obligations  of such  Person to  pay a
specified purchase  price for goods  or services whether  or not delivered  or
accepted, i.e., take-or-pay and similar obligations, (vii) all net obligations
of  such Person  under  Interest Rate  Agreements  and (viii)  all  Contingent
Obligations of such Person (other than Contingent Obligations arising from the
guaranty by  such Person of  the obligations of Holdings,  the Borrower and/or
their respective Subsidiaries  to the extent  such guaranteed obligations  are
permitted under this Agreement); provided  that Indebtedness shall not include
trade payables  and accrued  expenses, in  each case  arising in the  ordinary
course of business.

            "Initial  Borrowing  Date" shall  mean  the  date upon  which  the
initial Borrowing of Loans occurs.

            "Interest Period" with respect to any Loan shall mean the interest
period applicable thereto, as determined pursuant to Section 1.08.

            "Interest  Rate  Agreement"  shall  mean any  interest  rate  swap
agreement, any interest rate cap agreement, any interest rate collar agreement
or other similar agreement or arrangement designed to protect any Credit Party
against interest rate risk.

            "Leasehold"  of any  Person  means all  of  the right,  title  and
interest of  such Person  as lessee  or licensee in,  to and  under leases  or
licenses of land, improvements and/or fixtures.

            "L/C Supportable  Obligations" shall mean such  obligations of the
Borrower,  the Guarantors  or their  Subsidiaries (other  than  obligations in
respect  of Indebtedness)  as are  not inconsistent  with the policies  of the
Letter of Credit Issuer.

            "Letter of  Credit" shall  have the  meaning  provided in  Section
2.01(a).

            "Letter  of Credit Fee" shall have the meaning provided in Section
3.01(b).

            "Letter  of   Credit  Issuer"  shall  mean   Christiania  Bank  og
Kreditkasse, New York Branch.

            "Letter of Credit Outstandings"  shall mean, at any time,  the sum
of,  without duplication, (i) the  aggregate Stated Amount  of all outstanding
Letters  of Credit  and (ii) the  aggregate amount  of all  Unpaid Drawings in
respect of all Letters of Credit.

            "Letter  of Credit  Request" shall  have the  meaning  provided in
Section 2.02(a).

            "Leverage  Ratio" shall  mean, at any  date of  determination, the
ratio of Consolidated  Indebtedness on  such date to  Total Capitalization  on
such date.

            "Lien"   shall  mean  any  mortgage,  pledge,  security  interest,
security  title,  encumbrance,  lien or  charge  of  any  kind (including  any
agreement to  give any of the  foregoing, any conditional sale  or other title
retention  agreement or  any lease in  the nature thereof)  other than arising
from an event constituting a Total Loss.

            "Loan" shall have the meaning provided in Section 1.01.

            "Margin Stock" shall have the meaning provided in Regulation U.

            "Market Value" shall mean as of  any date of calculation the value
as of such  date of any offshore drilling rig or  other vessel provided in the
most recent valuation report delivered in connection with Section 5.16(ii) and
Section 7.10, or in  the case two reports have been supplied  as of such date,
the arithmetic mean of the values provided in such reports.

            "Material Adverse Effect" shall mean  a material adverse effect on
the business, property, assets, liabilities, operations,  condition (financial
or otherwise)  or prospects of the  Borrower or Holdings  and its Subsidiaries
taken as a whole.

            "Maturity  Date" shall mean the date that is the fifth anniversary
of the Effective Date.

            "Minimum Borrowing Amount" shall mean $1,000,000.

            "Mortgage" shall have the meaning provided in Section 5.13(a).

            "Mortgaged  Rigs"  shall  mean  and   include  the  US  Rigs,  the
Panamanian Rig, the Australian Rig and the Bahamian Rig.

            "Mortgagor" shall mean each Credit Party party to a Mortgage.

            "Non-Defaulting Bank" shall mean each Bank other than a Defaulting
Bank.

            "Note" shall have the meaning provided in Section 1.05(a).

            "Notice of Borrowing" shall  have the meaning provided  in Section
1.03.

            "Notice Office" shall mean the office of the Agent at 11 West 42nd
Street,  7th Floor, New York, New York 10036 or such other office as the Agent
may designate to the Borrower from time to time.

            "Obligations"  shall   mean  all  amounts,  direct   or  indirect,
contingent  or  absolute,  of  every  type or  description,  and  at  any time
existing, owing to the Agent, the Collateral Agent or any Bank pursuant to the
terms of this Agreement or any other Credit Document.

            "Panamanian Mortgage"  shall have the meaning  provided in Section
5.13(a).

            "Panamanian  Rig" shall  mean  the offshore  drilling rig  Charley
Graves.

            "Participant" shall have the meaning provided in Section 2.04(a). 

            "Payment Office"  shall mean the  office of  the Agent at  11 West
42nd Street, 7th  Floor, New York, New York 10036 or  such other office as the
Agent may designate to the Borrower from time to time.

            "PBGC"   shall  mean  the  Pension  Benefit  Guaranty  Corporation
established pursuant to Section 4002 of ERISA, or any successor thereto.

            "Percentage" shall mean for  each Bank the percentage  obtained by
dividing such Bank's Commitment by the Total Commitment, provided that  if the
Total  Commitment has  been terminated, the  Percentage of each  Bank shall be
determined  by  dividing such  Bank's  Commitment  immediately prior  to  such
termination by the Total Commitment immediately prior to such termination.

            "Permitted Liens"  shall mean  Liens described in  Section 8.03(a)
through (g).

            "Person" shall  mean any individual,  partnership, joint  venture,
firm, corporation, association, trust or other enterprise or any government or
political subdivision or any agency, department or instrumentality thereof.

            "Plan"  shall mean  any multiemployer  or single-employer  plan as
defined in Section 4001 of ERISA, which is maintained or contributed to by (or
to which there is an obligation to contribute of)  Holdings or a Subsidiary of
Holdings or an ERISA Affiliate.

            "Projections" shall have the meaning set forth in Section 6.10(d).

            "RCRA" shall mean the  Resource Conservation and Recovery Act,  as
amended, 42 U.S.C.   6901 et seq.

            "Real Property" of  any Person shall mean all  of the right, title
and  interest of  such  Person  in and  to  land, improvements  and  fixtures,
including Leaseholds.

            "Register" shall have the meaning provided in Section 12.16.

            "Regulation D" shall mean  Regulation D of the Board  of Governors
of the Federal Reserve System as from time to time in effect and any successor
to all or a portion thereof establishing reserve requirements.

            "Regulation U" shall mean  Regulation U of the Board  of Governors
of the Federal Reserve System as from time to time in effect and any successor
to all or a portion thereof establishing margin requirements.

            "Replaced Bank" shall have the meaning provided in Section 1.12.

            "Replacement  Bank" shall  have  the meaning  provided in  Section
1.12.

            "Reportable  Event"  shall  mean  an event  described  in  Section
4043(c) of ERISA with  respect to a Plan other  than those events as  to which
the 30-day notice period is waived under subsection .13, .14, .16, .18, .19 or
 .20 of PBGC Regulation Section 2615.

            "Required Banks" shall mean Non-Defaulting Banks whose outstanding
Commitments  (or,  if after  the Total  Commitment  has been  terminated, out-
standing  Loans and Adjusted Percentage of Letter of Credit Outstandings) con-
stitute greater  than 50% of the  Adjusted Total Commitment (or,  if after the
Total  Commitment has  been terminated,  the total  outstanding Loans  of Non-
Defaulting Banks and the aggregate  Adjusted Percentages of all Non-Defaulting
Banks of the total Letter of Credit Outstandings at such time).

            "Scheduled Commitment Reduction" shall  have the meaning  provided
in Section 3.03(b).

            "SEC"  shall mean the  Securities and  Exchange Commission  or any
successor thereto.

            "Section 4.04(b)(ii) Certificate" shall have  the meaning provided
in Section 4.04(b)(ii).

            "Secured  Creditors"  shall have  the  meaning  set  forth in  the
Security Documents.

            "Security Agreement"  shall have  the meaning provided  in Section
5.11.

            "Security Agreement  Collateral"  shall mean  all "Collateral"  as
defined in the Security Agreement.

            "Security  Documents"   shall  mean   and  include   the  Security
Agreement,  the Collateral  Assignments of  Insurance, each  Mortgage  and the
Vessel Trust Indenture.

            "Stated  Amount" of each Letter  of Credit shall  mean the maximum
available to be  drawn thereunder  (regardless of whether  any conditions  for
drawing could then be met).

            "Subsidiary Guaranty"  shall have the meaning  provided in Section
5.12.

            "Subsidiary"  of  any  Person  shall  mean  and  include  (i)  any
corporation more than 50% of whose stock of any class or classes having by the
terms thereof  ordinary voting power to  elect a majority of  the directors of
such corporation  (irrespective of  whether or  not at the  time stock  of any
class or classes of such corporation shall have or might have voting  power by
reason  of the  happening of  any contingency)  is at  the time owned  by such
Person  directly or indirectly through Subsidiaries  and (ii) any partnership,
association, joint  venture or other entity  in which such Person  directly or
indirectly through Subsidiaries,  has more than a  50% equity interest at  the
time.    Unless  otherwise  expressly   provided,  all  references  herein  to
"Subsidiary" shall mean a Subsidiary of Holdings.

            "Subsidiary Guarantor" shall mean  each Subsidiary of the Borrower
which owns a Mortgaged Rig and executes the Subsidiary Guaranty.

            "Substitute  Basis" shall  have  the meaning  provided in  Section
1.09(b).

            "Supermajority Banks" at any  time shall mean Non-Defaulting Banks
whose  outstanding  Commitments   (or,  if  the  Total  Commitment   has  been
terminated,  outstanding Loans  and Adjusted  Percentage of  Letter  of Credit
Outstandings) constitute  greater than  80% of  the Adjusted  Total Commitment
(or, if after the Total Commitment  has been terminated, the total outstanding
Loans  of Non-Defaulting Banks and  the aggregate Adjusted  Percentages of all
Non-Defaulting Banks of the total Letter of Credit Outstandings at such time).

            "Taxes" shall have the meaning provided in Section 4.04(a).

            "Total Capitalization"  shall  mean,  at  any  time,  the  sum  of
Consolidated Indebtedness and Consolidated Net Worth at such time.

            "Total  Commitment"  shall  mean, at  any  time,  the  sum of  the
Commitments of each of the Banks.

            "Total  Loss"  shall  mean any  "Total  Loss"  as  defined in  any
Mortgage.

            "Total Unutilized  Commitment" shall  mean, at any  time, (i)  the
Total Commitment at  such time less  (ii) the sum  of the aggregate  principal
amount  of all Loans  at such time  plus the Letter  of Credit Outstandings at
such time.

            "Trustee" shall  mean Wilmington Trust Company, as trustee for the
Banks  pursuant to  the  Vessel Trust  Indenture,  and any  successor  trustee
appointed in accordance with the terms thereof.

            "UCC" shall mean the Uniform Commercial Code.

            "Unfunded Current Liability" of any Plan means the amount, if any,
by which the actuarial  present value of the  accumulated plan benefits  under
the Plan as of the close of its most  recent plan year exceeds the fair market
value  of the  assets allocable  thereto, each  determined in  accordance with
Statement of Financial Accounting  Standards No. 87, based upon  the actuarial
assumptions used by the Plan's actuary in the most recent  annual valuation of
the Plan.

            "Unpaid  Drawing"  shall  have  the meaning  provided  in  Section
2.03(a).

            "Unutilized Commitment" for  each Bank, shall  mean the excess  of
(i)  the Commitment of such Bank  over (ii) the sum of  (x) the aggregate out-
standing principal amount of Loans  made by such Bank plus (y) an amount equal
to  such Bank's Adjusted  Percentage of the  Letter of  Credit Outstandings at
such time.

            "US Mortgage" shall have the meaning provided in Section 5.13(a).

            "US Rigs" shall mean  the offshore drilling rigs Jack  Bates, D.R.
Stewart and W.D. Kent.

            "U.S.  Dollar  Equivalent"   shall  mean,  at  any  time  for  the
determination  thereof, the amount of  U.S. Dollars necessary  to purchase the
amount of the relevant currency  at the spot exchange rate therefor  as quoted
by the  Agent as of  11:00 a.m.  (London time) on  the date two  Business Days
prior to the date of any determination thereof for purchase on such date.

            "U.S. Dollars" shall mean freely transferable  lawful money of the
United States.

            "Vessel  Trust  Indenture"  shall  have the  meaning  provided  in
Section 5.15.

            "Voting Stock" shall  mean, with respect  to any corporation,  the
outstanding stock of all  classes (or equivalent interests) which  ordinarily,
in the absence  of contingencies,  entitles holders  thereof to  vote for  the
election  of  directors  (or Persons  performing  similar  functions) of  such
corporation,  even though  the right  so  to vote  has been  suspended by  the
happening of such a contingency.

            "Wholly-Owned Subsidiary" of any  Person shall mean any Subsidiary
of  such Person  to the  extent all  of the  capital stock or  other ownership
interests  in  such Subsidiary,  other  than directors'  qualifying  shares or
shares  held by a nominee  or in trust  for such Person, is  owned directly or
indirectly by such Person.

            "Working Capital"  shall mean  the excess of  Consolidated Current
Assets  over  Consolidated  Current  Liabilities  exclusive  of  the  Holdings
Convertible Debentures.

            "Written"  or  "in  writing"  shall  mean  any   form  of  written
communication or a communication by means of telex or facsimile transmission.

            SECTION 11.  The Agent.

            11.01  Appointment.  The Banks hereby designate Christiania Bank og
Kreditkasse, New  York Branch as Agent  (for purposes of this  Section 11, the
term "Agent" shall include CBK in its capacity as Collateral Agent pursuant to
this Agreement and  the Security Documents) to act as  specified herein and in
the other Credit Documents.  Each Bank hereby irrevocably authorizes, and each
holder of any Note by the acceptance of  such Note shall be deemed irrevocably
to authorize, the Agent to take such action on its behalf under the provisions
of this  Agreement, the other Credit  Documents and any other  instruments and
agreements referred  to herein or therein  and to exercise such  powers and to
perform  such duties hereunder and thereunder as are specifically delegated to
or required of the Agent by the terms hereof and thereof and such other powers
as are reasonably incidental thereto.  The Agent may perform any of its duties
hereunder by or through its respective  officers, directors, agents, employees
or Affiliates. 

            11.02  Nature of Duties.  The  Agent shall not  have any duties or
responsibilities  except those expressly set  forth in this  Agreement and the
other Credit Documents.  Neither the Agent nor any of its respective officers,
directors,  agents, employees  or Affiliates  shall be  liable for  any action
taken or omitted by it or them hereunder or under any other Credit Document or
in  connection herewith  or therewith,  unless  caused by  its or  their gross
negligence or willful misconduct.  The duties of the Agent shall be mechanical
and  administrative in  nature; the  Agent shall  not have  by reason  of this
Agreement or any other Credit Document  a fiduciary relationship in respect of
any Bank or the holder of any Note; and nothing in this Agreement or any other
Credit Document, expressed or implied, is intended to or shall be so construed
as to  impose upon the Agent any  obligations in respect of  this Agreement or
any other Credit Document except as expressly set forth herein or therein.

            11.03  Lack of Reliance on the  Agent.  Independently  and without
reliance upon the Agent, each Bank and the holder of each Note, to  the extent
it  deems appropriate, has made and  shall continue to make  (i) its own inde-
pendent investigation of the  financial condition and affairs of  Holdings and
its Subsidiaries  in connection  with the  making and  the continuance of  the
Loans and issuance and/or participation in Letters of Credit and the taking or
not taking of any  action in connection herewith and (ii) its own appraisal of
the creditworthiness of Holdings and its Subsidiaries and, except as expressly
provided in this Agreement, the Agent  shall not have any duty or responsibil-
ity, either  initially or on  a continuing basis, to  provide any Bank  or the
holder of any Note with any credit or other information  with respect thereto,
whether coming into  its possession before the  making of the Loans or  at any
time or times thereafter.   The Agent shall not be responsible to  any Bank or
the  holder of any Note  for any recitals,  statements, information, represen-
tations or  warranties herein or in any document, certificate or other writing
delivered in connection herewith or for the execution, effectiveness, genuine-
ness,   validity,  enforceability,  perfection,  collectibility,  priority  or
sufficiency  of this Agreement  or any other Credit  Document or the financial
condition of  Holdings and its Subsidiaries or be required to make any inquiry
concerning  either  the  performance  or  observance  of  any  of  the  terms,
provisions or conditions  of this Agreement or  any other Credit  Document, or
the financial condition  of Holdings and its Subsidiaries or  the existence or
possible existence of any Default or Event of Default.

            11.04  Certain Rights of the Agent.   If the  Agent shall  request
instructions  from the  Required  Banks  with respect  to  any act  or  action
(including failure  to act)  in connection  with this  Agreement or any  other
Credit Document, the Agent shall  be entitled to refrain from such act or tak-
ing  such action unless  and until the Agent  shall have received instructions
from the Required Banks; and the Agent shall not incur liability to any Person
by reason of so refraining.   Without limiting the foregoing, neither any Bank
nor the holder of  any Note shall have any right of  action whatsoever against
the Agent as a result of the  Agent acting or refraining from acting hereunder
or under any other Credit Document  in accordance with the instructions of the
Required Banks.

            11.05  Reliance. The Agent shall be entitled to rely, and shall be
fully  protected  in  relying,  upon any  note,  writing,  resolution, notice,
statement,  certificate, telex,  teletype  or  telecopier message,  cablegram,
radiogram,  order or other document or  telephone message signed, sent or made
by any  Person that  the Agent  believed to  be the  proper Person,  and, with
respect to all legal matters pertaining to this Agreement and any other Credit
Document  and  its duties  hereunder and  thereunder,  upon advice  of counsel
selected by the Agent (which may be counsel for Holdings and/or the Borrower).

            11.06  Indemnification. To the extent  the Agent is not reimbursed
and  indemnified by the Borrower,  the Banks will  reimburse and indemnify the
Agent,  in proportion to their respective "percentages" as used in determining
the  Required Banks,  for and  against any  and all  liabilities, obligations,
losses, damages, penalties, claims, actions, judgments, suits, costs, expenses
or  disbursements of  whatsoever  kind or  nature  which  may be  imposed  on,
asserted against or incurred by the Agent in performing its respective  duties
hereunder  or  under any  other Credit  Document, in  any  way relating  to or
arising  out of this Agreement or any  other Credit Document; provided that no
Bank shall be liable for any portion of such liabilities, obligations, losses,
damages,  penalties, claims,  actions,  judgments, suits,  costs, expenses  or
disbursements resulting  from the  Agent's  gross negligence  or willful  mis-
conduct.

            11.07  The Agent in Its Individual Capacity.  With respect  to its
obligation to make Loans under this Agreement, the Agent shall have the rights
and powers specified herein for a "Bank" and  may exercise the same rights and
powers  as though it were not performing  the duties specified herein; and the
term "Banks," "Required Banks," "holders of Notes" or any similar terms shall,
unless the context clearly otherwise indicates, include the Agent in its indi-
vidual  capacity.   The Agent  may accept  deposits from,  lend money  to, and
generally engage in any kind of banking, trust or other business with Holdings
or its Subsidiaries or any Affiliate thereof as if it were not  performing the
duties  specified herein,  and may  accept fees  and other  consideration from
Holdings or  any of  its Subsidiaries  for services  in  connection with  this
Agreement and otherwise without having to account for the same to the Banks.

            11.08  Holders. The Agent may deem and treat the payee of any Note
as the owner thereof for all purposes hereof unless and until a written notice
of the assignment, transfer or endorsement thereof, as the case  may be, shall
have been filed  with the  Agent.  Any  request, authority  or consent of  any
Person who, at  the time of making  such request or  giving such authority  or
consent, is  the holder of  any Note  shall be conclusive  and binding on  any
subsequent holder,  transferee, assignee or indorsee,  as the case  may be, of
such Note or of any Note or Notes issued in exchange therefor.

            11.09  Resignation by the Agent.   (a)  The  Agent may resign from
the performance of  all its functions  and duties hereunder  and/or under  the
other  Credit Documents at any time by  giving 15 Business Days' prior written
notice to the Borrower and the Banks.  Such resignation shall take effect upon
the appointment of a successor  Agent pursuant to clauses (b) and (c) below or
as otherwise provided below.

            (b)  Upon any such notice of resignation, the Required Banks shall
appoint a  successor Agent hereunder or  thereunder who shall  be a commercial
bank or trust company reasonably acceptable to the Borrower.

            (c)  If  a successor Agent shall not have been so appointed within
such 15  Business Day  period, the  Agent, with the  consent of  the Borrower,
shall  then appoint a  successor Agent who  shall serve as  Agent hereunder or
thereunder until such time, if any, as the Required Banks  appoint a successor
Agent as provided above.

            (d)  If no successor Agent  has been appointed pursuant  to clause
(b)  or (c)  above by  the 20th  Business Day  after the  date such  notice of
resignation  was  given by  the Agent,  the  Agent's resignation  shall become
effective and the Required  Banks shall thereafter perform  all the duties  of
the Agent hereunder and/or under any other Credit Document until such time, if
any, as the Required Banks appoint a successor Agent as provided above.

            SECTION 12.  Miscellaneous.

            12.01  Payment of Expenses,  etc.  The  Borrower agrees  to:   (i)
whether or not the  transactions herein contemplated are consummated,  pay all
reasonable  out-of-pocket costs and expenses of  the Agent and the Co-Agent in
connection with the  negotiation, preparation, execution  and delivery of  the
Credit Documents and the documents and instruments referred to therein and any
amendment, waiver or consent  relating thereto (including, without limitation,
the reasonable  fees and disbursements  of White  & Case and  special maritime
counsel Watson, Farley  & Williams) and of the Agent  and the Collateral Agent
and, after the occurrence and  during the continuance of an Event  of Default,
each  of the Banks in connection with  the enforcement of the Credit Documents
and  the documents  and  instruments referred  to therein  (including, without
limitation,  the actual reasonable fees  and disbursements of  counsel for the
Agent  and, after  the occurrence and  during the  continuance of  an Event of
Default for each of the Banks); (ii)  pay and hold each of the Banks  harmless
from and against  any and all present and future stamp and other similar taxes
with respect to the foregoing matters and save each of the Banks harmless from
and against  any and  all liabilities  with respect to  or resulting  from any
delay or omission (other than  to the extent attributable to such Bank) to pay
such taxes;  and (iii) indemnify each  Bank (including in its  capacity as the
Agent  or  Letter  of  Credit  Issuer),  its  officers, directors,  employees,
representatives and agents from and hold each of them harmless against any and
all  liabilities, obligations,  losses, damages,  penalties, claims,  actions,
judgments,  suits,  costs, expenses  or  disbursements of  whatsoever  kind or
nature which may be imposed on, asserted against or incurred by any of them as
a result of, or arising out of, or in any way related to, or by reason of, (a)
any  investigation, litigation or other proceeding (whether or not any Bank is
a party thereto) related to the entering into and/or performance of any Credit
Document or the use of the proceeds of any Loans hereunder or the consummation
of  any transactions contemplated in any Credit Document, whether initiated by
the  Borrower or any other  Person, including, without  limitation, the actual
reasonable fees and disbursements  of counsel incurred in connection  with any
such investigation, litigation  or other  proceeding (but  excluding any  such
losses, liabilities, claims,  damages or  expenses to the  extent incurred  by
reason  of the  gross negligence  or willful  misconduct of  the Person  to be
indemnified) or (b) the actual  or alleged presence of Hazardous Materials  in
the  air,  surface  water, groundwater,  surface  or  subsurface  of any  Real
Property, offshore  drilling rig, facility  or location at  any time owned  or
operated  by Holdings  or any  of its  Subsidiaries, the  generation, storage,
transportation  or  disposal  of Hazardous  Materials  at  any  Real Property,
offshore drilling rig, facility or  location at any time owned or  operated by
Holdings or any of its Subsidiaries, the non-compliance of  any Real Property,
offshore drilling rig,  facility or location at any time  owned or operated by
Holdings or  any of  its  Subsidiaries with  federal,  state and  local  laws,
regulations,  and ordinances (including applicable permits thereunder) applic-
able to any  such Real Property, offshore drilling rig,  facility or location,
or any Environmental Claim asserted against Holdings, any of its Subsidiaries,
or any Real Property, offshore drilling rig, facility or location  at any time
owned or operated  by Holdings or any of its  Subsidiaries, including, in each
case,  without limitation,  the actual  reasonable fees  and disbursements  of
counsel  and  other   consultants  incurred  in   connection  with  any   such
investigation, litigation or other proceeding (but excluding any  losses, lia-
bilities, claims,  damages or expenses to the extent incurred by reason of the
gross  negligence or willful misconduct of the  Person to be indemnified).  To
the extent that  the undertaking to indemnify, pay or  hold harmless the Agent
or any Bank set forth  in the preceding sentence may be  unenforceable because
it  is violative  of any  law or  public policy, the  Borrower shall  make the
maximum   contribution  to  the  payment  and  satisfaction  of  each  of  the
indemnified liabilities which is permissible under applicable law.

            12.02  Right of Setoff. In addition to any rights now or hereafter
granted under applicable law or otherwise, and not by way of limitation of any
such rights, if  an Event of Default  then exists, each Bank  is hereby autho-
rized at any  time or from time to time,  without presentment, demand, protest
or other notice of any kind to the  Borrower or to any other Person, any  such
notice being hereby expressly waived, to set off and to  appropriate and apply
any and  all deposits (general or  special) and any other  Indebtedness at any
time held  or owing by such Bank (including without limitation by branches and
agencies of such Bank wherever located) to or for the credit or the account of
the Borrower against and on account  of the Obligations and liabilities of the
Borrower to such Bank under  this Agreement or under  any of the other  Credit
Documents, including, without limitation, all  interests in Obligations of the
Borrower purchased  by such Bank pursuant  to Section 12.06(b), and  all other
claims of  any nature  or description  arising out of  or connected  with this
Agreement or any  other Credit Document,  irrespective of whether or  not such
Bank  shall have made any demand hereunder and although said Obligations, lia-
bilities or claims, or any of them, shall be contingent or unmatured.

            12.03  Notices.  (a)    Except  as  otherwise  expressly  provided
herein, all notices and  other communications provided for hereunder  shall be
in writing (including telex or  telecopier communication) and mailed, telexed,
telecopied or  delivered, if to Holdings  or its Subsidiaries,  at the address
specified  opposite  its  signature below  or  in  the  other relevant  Credit
Documents, as the case  may be; if to any  Bank, at its address  specified for
such Bank on Annex II; or, at such other address as shall be designated by any
party in a written  notice to the other parties hereto.   All such notices and
communications shall be effective when received.

            (b)  Without in any way limiting the obligation of the Borrower to
confirm in writing any telephonic notice permitted  to be given hereunder, the
Agent may, prior  to receipt  of written confirmation,  act without  liability
upon the basis of such telephonic notice  believed by the Agent in good  faith
to be  from an Authorized  Officer of  the Borrower.   In each such  case, the
Borrower hereby waives the right to dispute the Agent's record of the terms of
such telephonic notice.

            12.04  Benefit of Agreement.  (a)  This Agreement shall be binding
upon  and  inure to  the  benefit  of and  be  enforceable  by the  respective
successors and assigns of the parties  hereto, provided that the Borrower  may
not assign or transfer any of its rights or obligations  hereunder without the
prior  written  consent of  the  Banks.   Each  Bank  may  at  any time  grant
participations in any  of its rights  hereunder or under any  of the Notes  to
another  financial  institution,  provided  that  in  the  case  of  any  such
participation,  the participant shall not have any rights under this Agreement
or any of the  other Credit Documents (the  participant's rights against  such
Bank in respect of such  participation to be those set forth in  the agreement
executed by  such Bank in favor  of the participant relating  thereto) and all
amounts payable  by the Borrower hereunder shall be determined as if such Bank
had not sold such participation, except that the participant shall be entitled
to the benefits of Sections 1.09 and 4.04 of this Agreement to the extent that
such Bank would be entitled to such benefits if the participation had not been
entered into or  sold, and,  provided further,  that no  Bank shall  transfer,
grant  or  assign any  participation under  which  the participant  shall have
rights to approve  any amendment to or  waiver of this Agreement or  any other
Credit Document except to the extent such amendment or waiver would (i) extend
the final scheduled maturity of any Loan or Note in which such participant  is
participating (it being  understood that any waiver of the  application of any
prepayment  or  the  method  of any  application  of  any  prepayment  to, the
Scheduled Commitment Reductions shall not constitute an extension of the final
maturity date), or reduce the rate  or extend the time of payment  of interest
or Fees  thereon (except in connection  with a waiver of  the applicability of
any post-default increase in  interest rates), or reduce the  principal amount
thereof,  or  increase  such   participant's  participating  interest  in  any
Commitment over  the amount thereof then in effect (it being understood that a
waiver of any condition, covenant, Default or Event  of Default or of a manda-
tory reduction in the Total Commitment,  or a mandatory prepayment, shall  not
constitute a change in the  terms of any Commitment), (ii) release all or sub-
stantially  all  of the  Collateral  or  (iii) consent  to  the  assignment or
transfer  by the  Borrower of  any of  its rights  and obligations  under this
Agreement.

            (b)  Notwithstanding the foregoing, (x) any Bank may assign all or
a portion of  its outstanding Commitment and its rights  and obligations here-
under to  its Affiliate or  to another Bank, and  (y) with the  consent of the
Agent and the Borrower (which consent shall not be unreasonably withheld), any
Bank may assign all or a portion of its outstanding Commitment  and its rights
and obligations hereunder  to one or more Eligible Transferees.  No assignment
pursuant  to the  immediately  preceding sentence  shall  to the  extent  such
assignment represents an assignment  to an institution other than one  or more
Banks hereunder,  be in an  aggregate amount less  than $5,000,000  unless the
entire Commitment of  the assigning Bank is so assigned.  If any Bank so sells
or assigns  all or  a part  of its rights  hereunder or  under the  Notes, any
reference  in this Agreement or the Notes  to such assigning Bank shall there-
after refer to such Bank and to the respective assignee to the extent of their
respective interests and the respective assignee shall have,  to the extent of
such  assignment  (unless otherwise  provided  therein), the  same  rights and
benefits as it would if it were such assigning Bank.  Each assignment pursuant
to  this Section  12.04(b) shall  be effected  by the  assigning Bank  and the
assignee Bank executing an Assignment and  Assumption Agreement.  In the event
of any such assignment (x) to a commercial bank or other financial institution
not previously  a Bank hereunder,  either the assigning  or the  assignee Bank
shall pay  to the Agent a nonrefundable assignment fee  of $3,500 and (y) to a
Bank, either  the assigning or  assignee Bank shall  pay to  the Agent a  non-
refundable  assignment  fee  of $1,500,  and  at  the time  of  any assignment
pursuant to this Section 12.04(b),  (i) Annex I shall be deemed to  be amended
to reflect the Commitment of the  respective assignee (which shall result in a
direct  reduction to the  Commitment of the  assigning Bank) and  of the other
Banks,  and (ii)  if any  such assignment occurs  after the  Initial Borrowing
Date, if requested  by the assigning Bank and the  assignee Bank, the Borrower
will issue new Notes  to the respective assignee and to the  assigning Bank in
conformity with the requirements of Section 1.05.  Each Bank  and the Borrower
agree to  execute such documents  (including without limitation  amendments to
this Agreement and the other Credit Documents) as shall be necessary to effect
the foregoing.  Nothing in this clause (b)  shall prevent or prohibit any Bank
from  pledging its  Notes or  Loans to a  Federal Reserve  Bank in  support of
borrowings made by such Bank from such Federal Reserve Bank.

            (c)  Notwithstanding any  other provisions of  this Section 12.04,
no transfer  or  assignment  of  the  interests or  obligations  of  any  Bank
hereunder or  any grant of  participation therein  shall be permitted  if such
transfer, assignment or grant would require Holdings or the Borrower to file a
registration statement  with the SEC or  to qualify the Loans  under the "Blue
Sky" laws of any State.

            (d)  Each   Bank  initially   party   to  this   Agreement  hereby
represents,  and  each Person  that became  a Bank  pursuant to  an assignment
permitted by this Section 12 will,  upon its becoming party to this Agreement,
represent that it is a commercial lender, other financial institution or other
"accredited" investor  (as defined in SEC  Regulation D) which  makes loans in
the ordinary course of its business and that it will make or acquire Loans for
its own account in the ordinary course of such business, provided that subject
to the preceding clauses (a) and (b), the disposition of  any promissory notes
or other evidences of or interests in  Indebtedness held by such Bank shall at
all times be within its exclusive control.

            12.05  No Waiver; Remedies Cumulative.  No failure or delay on the
part of the  Agent or  any Bank in  exercising any  right, power or  privilege
hereunder or under any other Credit Document and no course  of dealing between
Holdings or any of its Subsidiaries and the Agent or any Bank shall operate as
a waiver thereof; nor shall any single or partial exercise of any right, power
or  privilege hereunder or under any other  Credit Document preclude any other
or  further exercise  thereof or  the exercise  of any  other right,  power or
privilege hereunder or thereunder.   The rights and remedies  herein expressly
provided are cumulative and not exclusive of any rights or  remedies which the
Agent or any Bank would otherwise have.  No notice to or demand on Holdings or
any of  its Subsidiaries  in any  case shall  entitle Holdings  or any  of its
Subsidiaries  to any  other or further  notice or  demand in  similar or other
circumstances or constitute a waiver of  the rights of the Agent or the  Banks
to any other or further action in any circumstances without notice or demand.

            12.06  Payments Pro  Rata.  (a)  The  Agent agrees  that  promptly
after  its receipt of each  payment from or  on behalf of any  Credit Party in
respect  of  any  Obligations  of  the Borrower  or  any  other  Credit  Party
hereunder, it shall distribute such payment  to the Banks (other than any Bank
that has expressly waived its right to receive its pro rata share thereof) pro
rata based  upon their  respective shares,  if  any, of  the Obligations  with
respect to which such payment was received.

            (b)  Each  of  the Banks  agrees that,  if  it should  receive any
amount hereunder (whether by voluntary  payment, by realization upon security,
by the exercise  of the right of  setoff or banker's lien, by  counterclaim or
cross  action, by the enforcement of any  right under the Credit Documents, or
otherwise) which is applicable to the payment of the principal of, or interest
on, the Loans, Unpaid  Drawings or Fees,  of a sum which  with respect to  the
related  sum or sums received by  other Banks is in  a greater proportion than
the total of such Obligation then owed and due to such Bank bears to the total
of such Obligation  then owed and due to all of the Banks immediately prior to
such receipt, then such  Bank receiving such excess payment shall purchase for
cash  without recourse  or warranty from  the other  Banks an  interest in the
Obligations of the Borrower or  any other Credit Party, respectively, to  such
Banks in such amount as shall result in a proportional participation by all of
the Banks in such amount, provided  that if all or any portion of  such excess
amount  is thereafter  recovered  from  such  Bank,  such  purchase  shall  be
rescinded and  the purchase price restored to the extent of such recovery, but
without interest.

            (c)   Notwithstanding anything  to the contrary  contained herein,
the provisions of the preceding Sections 12.06(a) and (b) shall  be subject to
the express provisions of  this Agreement which require, or  permit, differing
payments to be made to Non-Defaulting Banks as opposed to Defaulting Banks.

            12.07  Calculations; Computations.  (a)  The financial  statements
to be furnished  to the Banks  pursuant hereto shall  be made and prepared  in
accordance  with GAAP  consistently  applied throughout  the periods  involved
(except as set forth in the notes thereto or as otherwise disclosed in writing
by Holdings  or  the Borrower  to  the Banks),  provided  that (x)  except  as
otherwise specifically  provided herein, all computations  determining compli-
ance  with  Section  8,  including  definitions  used  therein, shall  utilize
accounting principles  and policies in effect  at the time  of the preparation
of, and  in conformity  with  those used  to prepare,  the  December 31,  1995
historical financial statements of Holdings delivered to the Banks pursuant to
Section 6.10(b)  and  (y) that  if at  any time  the computations  determining
compliance with  Section 8 utilize accounting principles  different from those
utilized  in the financial statements  furnished to the  Banks, such financial
statements shall be accompanied by reconciliation work-sheets.

            (b)  All computations of interest and Fees hereunder shall be made
on the actual number of days elapsed over a year of 360 days.

            12.08  GOVERNING LAW; SUBMISSION TO JURISDICTION; VENUE; WAIVER OF
JURY TRIAL.  (a)  THIS AGREEMENT AND THE OTHER CREDIT DOCUMENTS AND THE RIGHTS
AND OBLIGATIONS OF THE PARTIES HEREUNDER  AND THEREUNDER SHALL BE CONSTRUED IN
ACCORDANCE WITH  AND BE GOVERNED  BY THE LAW  OF THE STATE  OF NEW YORK.   ANY
LEGAL ACTION  OR PROCEEDING WITH RESPECT TO THIS AGREEMENT OR ANY OTHER CREDIT
DOCUMENT MAY BE  BROUGHT IN  THE COURTS OF  THE STATE  OF NEW YORK  OR OF  THE
UNITED STATES  FOR THE SOUTHERN  DISTRICT OF NEW  YORK, AND, BY  EXECUTION AND
DELIVERY OF  THIS  AGREEMENT, HOLDINGS  AND  THE BORROWER  HEREBY  IRREVOCABLY
ACCEPT  FOR THEMSELVES  AND  IN  RESPECT  OF  THEIR  PROPERTY,  GENERALLY  AND
UNCONDITIONALLY, THE JURISDICTION OF  THE AFORESAID COURTS.  HOLDINGS  AND THE
BORROWER FURTHER IRREVOCABLY CONSENT TO  THE SERVICE OF PROCESS OUT OF  ANY OF
THE  AFOREMENTIONED COURTS IN ANY SUCH ACTION  OR PROCEEDING BY THE MAILING OF
COPIES  THEREOF BY  REGISTERED  OR CERTIFIED  MAIL,  POSTAGE PREPAID,  TO  THE
BORROWER LOCATED  OUTSIDE NEW YORK CITY AND  BY HAND DELIVERY TO  THE BORROWER
LOCATED  WITHIN NEW YORK CITY, AT ITS  ADDRESS FOR NOTICES PURSUANT TO SECTION
12.03, SUCH SERVICE  TO BECOME EFFECTIVE 30 DAYS AFTER  SUCH MAILING.  NOTHING
HEREIN SHALL AFFECT THE RIGHT OF THE AGENT, ANY BANK OR THE HOLDER OF ANY NOTE
TO SERVE PROCESS  IN ANY OTHER  MANNER PERMITTED BY  LAW OR TO  COMMENCE LEGAL
PROCEEDINGS OR OTHERWISE PROCEED AGAINST HOLDINGS OR THE BORROWER IN ANY OTHER
JURISDICTION.

            (b)  HOLDINGS  AND  THE  BORROWER  HEREBY  IRREVOCABLY  WAIVE  ANY
OBJECTION WHICH THEY  MAY NOW OR HEREAFTER HAVE TO THE  LAYING OF VENUE OF ANY
OF THE AFORESAID ACTIONS OR  PROCEEDINGS ARISING OUT OF OR IN  CONNECTION WITH
THIS AGREEMENT OR ANY OTHER CREDIT DOCUMENT BROUGHT IN THE  COURTS REFERRED TO
IN CLAUSE  (A) ABOVE  AND HEREBY  FURTHER IRREVOCABLY WAIVE  AND AGREE  NOT TO
PLEAD OR CLAIM IN ANY SUCH COURT THAT ANY SUCH ACTION OR PROCEEDING BROUGHT IN
ANY SUCH COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

            (c)  EACH  OF THE  PARTIES  TO THIS  AGREEMENT HEREBY  IRREVOCABLY
WAIVES  ALL RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM
ARISING OUT  OF OR RELATING TO  THIS AGREEMENT, THE OTHER  CREDIT DOCUMENTS OR
THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

            12.09  Counterparts. This Agreement  may be executed in any number
of  counterparts and by the different parties hereto on separate counterparts,
each of which when so executed and delivered shall be an original, but  all of
which  shall together  constitute  one and  the  same instrument.    A set  of
counterparts  executed by  all the  parties hereto  shall  be lodged  with the
Borrower and the Agent.

            12.10  Effectiveness. This Agreement shall become effective on the
date (the  "Effective Date") on which  Holdings, the Borrower and  each of the
Banks shall have  signed a copy hereof (whether the  same or different copies)
and shall have  delivered the same to the  Agent at the Payment Office  of the
Agent or, in the  case of the Banks, shall have given  to the Agent telephonic
(confirmed in writing), written telex or facsimile transmission  notice (actu-
ally received) at such office that the same has been signed and mailed to it.

            12.11  Headings Descriptive. The headings  of the several sections
and subsections of this  Agreement are inserted for convenience only and shall
not in any way  affect the meaning  or construction of  any provision of  this
Agreement.

            12.12  Amendment or Waiver.  (a)  Neither  this Agreement  nor any
other Credit Document nor any terms  hereof or thereof may be changed, waived,
discharged  or terminated unless such change, waiver, discharge or termination
is in writing signed by the Borrower  and the Required Banks, provided that no
such  change, waiver, discharge or  termination shall, without  the consent of
each Bank  (other than  a Defaulting Bank)  affected thereby,  (i) extend  the
Maturity  Date (it being understood that any  waiver of the application of any
prepayment of the Loans or the method of application of any prepayment to  the
Scheduled Commitment Reductions, shall not  constitute any such extension), or
reduce  the rate or  extend the time of  payment of interest  (other than as a
result of waiving the  applicability of any post-default increase  in interest
rates) or  Fees thereon, or reduce the principal amount thereof, (ii) increase
the  Commitment of any Bank  over the amount thereof then  in effect (it being
understood  that a  waiver of  any condition,  covenant, Default  or Event  of
Default  or  of  a  mandatory reduction  in  the  Total  Commitment  shall not
constitute a change in the terms of any Commitment of any Bank), (iii) release
or permit the release of (x) any Mortgaged Rig from the Lien of the respective
Security Documents or  (y) the Guaranty of Holdings pursuant  to Section 13 or
the Guaranty of any Subsidiary Guarantor  so long as such Subsidiary Guarantor
continues to own  any Mortgaged Rig (except,  in the case of both  (x) and (y)
above,  as expressly provided in the  Credit Documents), (iv) amend, modify or
waive any provision of  this Section (subject  to the following proviso),  (v)
reduce the  percentage specified in the definition of Required Banks (it being
understood and agreed that, with the consent of the Required Banks, additional
extensions  of credit  pursuant  to  this Agreement  may  be  included in  the
determination  of  Required  Banks on  substantially  the  same  basis as  the
Commitments (and related extensions  of credit) are included on  the Effective
Date) or (vi) consent to the assignment or transfer by the  Borrower of any of
its rights and  obligations under  this Agreement; provided  further, that  no
such  change, waiver, discharge or  termination shall, without  the consent of
the Supermajority  Banks, (1) waive, change the timing or amount of, or extend
any Scheduled Commitment Reduction,  (2) amend, modify or waive  any provision
contained  in the definition  of Supermajority Banks  or (3) amend,  modify or
waive any  provision contained in this proviso.  No provision of Sections 2 or
11, or  any other provisions  relating to the Letter  of Credit Issuer  or the
Agent may be modified without the consent of the Agent.

            (b)  If, in connection with any proposed change, waiver, discharge
or termination to  any of the provisions of this  Agreement as contemplated by
clauses (i) through (vi), inclusive, of  the proviso to Section 12.12(a),  the
consent of the  Required Banks is obtained  but the consent of one  or more of
such other Banks whose consent is  required is not obtained, then the Borrower
shall  have the right  to replace each  such non-consenting Bank  or Banks (so
long as all non-consenting Banks are so replaced) with one or more Replacement
Banks pursuant to  Section 1.12 so long  as at the  time of such  replacement,
each  such Replacement Bank consents to the proposed change, waiver, discharge
or termination; provided that the Borrower shall not have the right to replace
a Bank  solely as  a result  of the exercise  of such  Bank's rights  (and the
withholding  of any  required  consent  by  such  Bank)  pursuant  to  Section
12.12(a)(ii). 

            12.13  Survival. All  indemnities  set  forth   herein  including,
without limitation, in  Section 1.09, 1.10, 2.05,  4.04, 11.06 or 12.01  shall
survive  the execution  and  delivery of  this  Agreement and  the making  and
repayment of the Loans.

            12.14  Domicile of Loans.  Each  Bank may  transfer and  carry its
Loans at, to or for  the account of any branch office, subsidiary or Affiliate
of such  Bank, provided that the  Borrower shall not be  responsible for costs
arising under Section  1.09 or 4.04  resulting from any  such transfer  (other
than  a transfer  pursuant to  Section 1.11(a))  to  the extent  not otherwise
applicable to such Bank prior to such transfer.

            12.15  Confidentiality. Subject to Section  12.04, the Banks shall
hold  all non-public information obtained pursuant to the requirements of this
Agreement in accordance with its customary procedure for handling confidential
information of this nature and in accordance with safe and sound banking prac-
tices  and in any  event may make  disclosure reasonably required  by any bona
fide transferee or participant in connection with the contemplated transfer of
any Loans or participation therein (so long as such  transferee or participant
agrees  to be bound by the provisions of this Section 12.15) or as required or
requested  by any governmental agency or representative thereof or pursuant to
legal process, provided that, unless specifically prohibited by applicable law
or  court order, each  Bank shall  notify the Borrower  of any request  by any
governmental  agency or representative thereof (other than any such request in
connection with an examination of the financial condition of such Bank by such
governmental agency) for disclosure of  any such non-public information  prior
to disclosure of such information, and provided further that in no event shall
any  Bank be  obligated  or  required to  return  any  materials furnished  by
Holdings or any Subsidiary.

            12.16  Registry. The Borrower hereby designates the Agent to serve
as  the Borrower's  agent,  solely  for purposes  of  this Section  12.16,  to
maintain  a register (the "Register") on which  it will record the Commitments
from time to  time of each of the  Banks, the Loans made by each  of the Banks
and each  repayment in respect of  the principal amount  of the Loans  of each
Bank.  Failure to make any such recordation, or  any error in such recordation
shall not  affect the Borrower's obligations  in respect of such  Loans.  With
respect to  any Bank,  the transfer of  the Commitments of  such Bank  and the
rights to  the principal of, and interest  on, any Loan made  pursuant to such
Commitments shall not  be effective  until such  transfer is  recorded on  the
Register maintained by the Agent with respect to ownership of such Commitments
and Loans  and prior to such  recordation all amounts owing  to the transferor
with  respect to  such  Commitments  and  Loans  shall  remain  owing  to  the
transferor.  The registration of assignment or transfer of all  or part of any
Commitments and Loans shall be recorded by the Agent on the Register only upon
the  acceptance by the  Agent of a properly  executed and delivered Assignment
and  Assumption Agreement pursuant to  Section 12.04(b).   Coincident with the
delivery of  such an  Assignment and  Assumption  Agreement to  the Agent  for
acceptance and  registration of  assignment or  transfer of all  or part  of a
Loan, or as  soon thereafter as practicable, the assigning  or transferor Bank
shall  surrender the Note evidencing such Loan,  and thereupon one or more new
Notes in the same aggregate principal  amount shall be issued to the assigning
or transferor Bank and/or the new Bank.

            SECTION 13.  Holdings Guaranty.

            13.1  The  Guaranty. In  order to induce  the Banks  to enter into
this Agreement and to extend credit hereunder and in recognition of the direct
benefits  to be received  by Holdings from  the proceeds of the  Loans and the
issuance of  the Letters of Credit,  Holdings hereby agrees with  the Banks as
follows:  Holdings hereby unconditionally and  irrevocably guarantees as prim-
ary obligor and  not merely as  surety the full  and prompt payment when  due,
whether  upon maturity, by  acceleration or otherwise,  of any and  all of the
Guaranteed Obligations  of the Borrower to  the Secured Creditors.   If any or
all of  the Guaranteed  Obligations of the  Borrower to the  Secured Creditors
becomes  due and payable  hereunder, Holdings unconditionally  promises to pay
such indebtedness to the Secured Creditors, on order, or demand, together with
any and  all reasonable expenses  which may  be incurred by  the Agent  or the
Secured Creditors in collecting any of the Guaranteed Obligations.

            13.2  Bankruptcy.   Additionally,  Holdings   unconditionally  and
irrevocably   guarantees  the  payment  of  any  and  all  of  the  Guaranteed
Obligations  of the Borrower to the Secured  Creditors whether or not then due
or payable by the  Borrower upon the occurrence in respect  of the Borrower of
any  of the events specified in Section 9.05, and unconditionally and irrevoc-
ably promises to  pay such Guaranteed Obligations to the Secured Creditors, on
order, or demand, in lawful money of the United States.  Holdings' guaranty of
the  payment  of any  and all  of the  Guaranteed Obligations  hereunder shall
constitute a guaranty of payment, and not of collection. 

            13.3  Nature of Liability.  The liability of Holdings hereunder is
exclusive  and  independent  of any  security  for  or other  guaranty  of the
Guaranteed Obligations of the Borrower whether executed by Holdings, any other
guarantor or by any other party, and the liability of Holdings hereunder shall
not be affected or impaired by (a) any direction  as to application of payment
by the Borrower or  by any other party, or  (b) any other continuing  or other
guaranty,  undertaking or  maximum liability  of a  guarantor or of  any other
party as to the Guaranteed Obligations of the Borrower, or (c)  any payment on
or in reduction  of any such other guaranty or undertaking, or (d) any dissol-
ution, termination  or increase, decrease  or change in personnel  by the Bor-
rower,  or (e) any payment  made to the Agent or  the Secured Creditors on the
indebtedness which the Agent or such Secured Creditors repay the Borrower pur-
suant  to   court  order  in  any   bankruptcy,  reorganization,  arrangement,
moratorium or other debtor relief proceeding, and Holdings waives any right to
the  deferral or modification  of its obligations  hereunder by  reason of any
such proceeding.

            13.4  Independent   Obligation.    The  obligations   of  Holdings
hereunder are  independent of the  obligations of  any other guarantor  or the
Borrower,  and  a separate  action or  actions may  be brought  and prosecuted
against Holdings whether or not action is brought against  any other guarantor
or the Borrower  and whether or  not any  other guarantor or  the Borrower  be
joined in any such action or actions.   Holdings waives, to the fullest extent
permitted by  law, the  benefit of  any statute  of limitations affecting  its
liability hereunder or  the enforcement thereof.  Any payment  by the Borrower
or other circumstance which operates to toll any statute of  limitations as to
the Borrower shall operate to toll the statute of limitations as to Holdings.

            13.5  Waiver  of Notice,  etc.  Holdings hereby  waives  notice of
acceptance of this Guaranty and notice of any liability to which it may apply,
and  waives promptness,  diligence, presentment,  demand of  payment, protest,
notice of  dishonor or nonpayment of  any such liabilities, suit  or taking of
other  action  by the  Agent,  any  Bank, the  Letter  of  Credit Issuer,  the
Collateral Agent  or the Trustee against,  and any other notice  to, any party
liable thereon (including Holdings, any other guarantor or the Borrower).

            13.6  Authorization. Holdings authorizes the Agent and the Secured
Creditors without notice or demand (except  as shall be required by applicable
statute  and cannot  be  waived),  and  without  affecting  or  impairing  its
liability hereunder, from time to time to:

            (a)  change  the  manner, place  or  terms of  payment  of, and/or
      change or extend the  time of payment of, renew, increase, accelerate or
      alter,  any of  the Guaranteed  Obligations  (including any  increase or
      decrease in the rate of interest thereon), any security therefor, or any
      liability incurred  directly or indirectly  in respect thereof,  and the
      Guaranty herein made  shall apply  to the Guaranteed  Obligations as  so
      changed, extended, renewed or altered;

            (b)  take  and hold  security for  the payment  of the  Guaranteed
      Obligations  and sell,  exchange,  release, surrender,  realize upon  or
      otherwise  deal with  in any  manner and  in any  order any  property by
      whomsoever  at any  time pledged  or mortgaged  to secure,  or howsoever
      securing, the  Guaranteed Obligations or any  liabilities (including any
      of those hereunder)  incurred directly or indirectly  in respect thereof
      or hereof, and/or any offset thereagainst;

            (c)  exercise or  refrain from  exercising any rights  against the
      Borrower or others or otherwise act or refrain from acting;

            (d)  release or substitute any  one or more endorsers, guarantors,
      the Borrower or other obligors;

            (e)  settle or  compromise any of the  Guaranteed Obligations, any
      security  therefor or any  liability (including any  of those hereunder)
      incurred  directly or indirectly in  respect thereof or  hereof, and may
      subordinate the payment of all or any part thereof to the payment of any
      liability (whether due  or not) of  the Borrower to its  creditors other
      than the Banks;

            (f)  apply  any sums by  whomsoever paid or  howsoever realized to
      any  liability or liabilities of  the Borrower to  the Secured Creditors
      regardless  of what liability or liabilities of Holdings or the Borrower
      remain unpaid;

            (g)  consent to or waive  any breach of, or  any act, omission  or
      default  under, this Agreement or  any of the  instruments or agreements
      referred  to  herein,  or otherwise  amend,  modify  or supplement  this
      Agreement or any of such other instruments or agreements; and/or

            (h)  take any other action which would, under otherwise applicable
      principles of common law, give rise to a legal or equitable discharge of
      Holdings from its liabilities under this Section 13.

            13.7  Reliance.  It is not necessary for  the Agent or the Secured
Creditors to  inquire into  the  capacity or  powers of  the  Borrower or  its
Subsidiaries  or  the  officers,  directors,  partners  or  agents  acting  or
purporting  to act  on  its behalf,  and any  Guaranteed  Obligations made  or
created in reliance upon the professed exercise of such powers  shall be guar-
anteed hereunder.

            13.8  Subordination.   Any of  the  indebtedness  of the  Borrower
relating  to the Guaranteed Obligations now or  hereafter owing to Holdings is
hereby subordinated to the Guaranteed Obligations of the Borrower owing to the
Agent and the Secured Creditors; and if  the Agent so requests at a time  when
an Event  of Default exists, all such  indebtedness relating to the Guaranteed
Obligations of the Borrower  to Holdings shall be collected,  enforced and re-
ceived by Holdings for the benefit  of the Secured Creditors and be paid  over
to the Agent on behalf  of the Secured Creditors on account  of the Guaranteed
Obligations of the Borrower to the Secured Creditors, but without affecting or
impairing  in any manner the liability  of Holdings under the other provisions
of this Guaranty.  Prior to the transfer by Holdings of any note or negotiable
instrument evidencing  any  of the  indebtedness  relating to  the  Guaranteed
Obligations of  the Borrower  to Holdings,  Holdings shall  mark such note  or
negotiable  instrument  with  a  legend  that the  same  is  subject  to  this
subordination.  

            13.9  Waiver.  (a)  Holdings waives any right (except  as shall be
required by applicable statute and  cannot be waived) to require the  Agent or
the Secured Creditors to (i) proceed against the Borrower, any other guarantor
or any other party, (ii) proceed against or exhaust any security held from the
Borrower,  any other guarantor  or any other  party or (iii)  pursue any other
remedy in the Agent's  or the Secured  Creditors' power whatsoever.   Holdings
waives any defense based on or arising out of any defense of the Borrower, any
other  guarantor  or any  other  party,  other than  payment  in  full of  the
Guaranteed  Obligations, based  on or  arising out  of the  disability of  the
Borrower, any other guarantor or  any other party, or the unenforceability  of
the  Guaranteed Obligations  or  any  part  thereof from  any  cause,  or  the
cessation  from any cause of the liability  of the Borrower other than payment
in full  of the Guaranteed Obligations.   The Agent and  the Secured Creditors
may,  at their election, foreclose on any security held by the Agent, the Col-
lateral Agent or the Secured Creditors by one or more  judicial or nonjudicial
sales, whether or not every aspect of any such sale is commercially reasonable
(to the  extent such sale  is permitted  by applicable law),  or exercise  any
other right or remedy the Agent and the Secured Creditors may have against the
Borrower  or any other party, or any  security, without affecting or impairing
in  any  way the  liability of  Holdings hereunder  except  to the  extent the
Guaranteed  Obligations have been paid.   Holdings waives  any defense arising
out of any such election  by the Agent and the Secured Creditors,  even though
such election operates to  impair or extinguish any right  of reimbursement or
subrogation  or other right or remedy of  Holdings against the Borrower or any
other party or any security.

            (b)  Holdings  waives all  presentments, demands  for performance,
protests and notices, including  without limitation notices of nonperformance,
notices  of  protest,  notices of  dishonor,  notices  of  acceptance of  this
Guaranty, and  notices  of the  existence,  creation or  incurring of  new  or
additional Guaranteed  Obligations.   Holdings assumes all  responsibility for
being  and keeping itself informed  of the Borrower's  financial condition and
assets, and of all other circumstances  bearing upon the risk of nonpayment of
the Guaranteed Obligations and the nature, scope and extent of the risks which
Holdings  assumes  and incurs  hereunder, and  agrees that  the Agent  and the
Secured  Creditors shall have no duty  to advise Holdings of information known
to them regarding such circumstances or risks.

                         *             *            *


            IN  WITNESS WHEREOF,  each  of the  parties  hereto has  caused  a
counterpart of this Agreement to be duly executed and delivered as of the date
first above written.

Address:                      READING & BATES CORPORATION

901 Threadneedle
Suite 200                     By                                   
Houston, Texas  77079             Name:  
Attn:  General Counsel            Title: 
Telephone:  (713) 496-5000
Facsimile:  (713) 496-0285

                              READING & BATES DRILLING CO.


                              By                                   
                                  Name:  
                                  Title: 

                               CHRISTIANIA BANK OG KREDITKASSE, NEW YORK
                               BRANCH,
                               Individually and as Agent


                               By                                   
                                   Name:  
                                   Title: 

                               By
                                   Name:
                                   Title:

                              CREDIT LYONNAIS NEW YORK BRANCH
                              Individually and as Co-Agent


                              By                                   
                                  Name:
                                  Title:

                              BANQUE INDOSUEZ


                              By                                   
                                  Name:
                                  Title:

                              BANK AUSTRIA AKTIENGESELLSCHAFT


                              By                                   
                                  Name:
                                  Title:

                              THE FUJI BANK, LIMITED


                              By                                   
                                  Name:
                                  Title: 

                                                                     ANNEX I


                                  COMMITMENTS

                       Bank                          Commitment
     Christiania Bank og Kreditkasse, New            $  45,000,000
        York Branch
     Credit Lyonnais New York Branch                 $  25,000,000
     Banque Indosuez                                 $  11,000,000
     Bank Austria Aktiengesellschaft                 $  11,000,000
     The Fuji Bank, Limited                          $   8,000,000

           Total                                      $100,000,000


                                                                      ANNEX II

                                BANK ADDRESSES

Christiania Bank og Kreditkasse,        11 West 42nd Street
New York Branch                         7th Floor
                                        New York, NY  10036
                                        Attn:  Loan Administration
                                        Tel. No.:  (212) 827-4800
                                        Fax No.:   (212) 827-4888

Credit Lyonnais                         1301 Avenue of the Americas
New York Branch                         New York, NY 10019
                                        Attn:  Susan Kopech, Esq.
                                        Tel. No.:  (212) 261-7052
                                        Fax No.:  (212) 459-3187

                                with a copy to:

                                        1000 Louisiana
                                        Suite 5360
                                        Houston, Texas 77002
                                        Attn:  Diane Scott
                                        Tel. No.:  (713) 751-0500
                                        Fax No.:  (713) 751-0307

Banque Indosuez                         9 Rue Louis Murat
                                        75371 Paris Cedex 08
                                        France
                                        Attn:  Francine Struxiano-Auffray
                                        Tel. No.: 011 33 1 4420 2377
                                        Fax No.:  011 33 1 4420 1934

Bank Austria Aktiengesellschaft         565 Fifth Avenue
                                        New York, NY 10017
                                        Attn:  Lynn Perri-Petrini
                                        Tel. No.: (212) 880-1171
                                        Fax No.:  (212) 880-1180

The Fuji Bank, Limited                  One Houston Center
                                        Suite 4100
                                        1221 McKinney Street
                                        Houston, Texas 77010
                                        Attn:  Mark Polasek
                                        Tel. No.: (713) 650-7863
                                        Fax No.:  (713) 759-0048


                                                                 Exhibit 10.86

                              SECURITY AGREEMENT


            SECURITY AGREEMENT (as amended, modified or supplemented from time
to  time, this  "Agreement"), dated as  of April  30, 1996,  between Reading &
Bates Drilling Co. (the "Borrower"),  Reading & Bates Exploration Co., Reading
&  Bates  (A)  Pty.  Ltd.  and Reading  and  Bates  Borneo  Drilling  Co. Ltd.
(collectively the  Subsidiary Guarantors and, together with  the Borrower, the
"Assignors"),  and Christiania  Bank  og  Kreditkasse,  New  York  Branch,  as
Collateral Agent (the  "Collateral Agent"), for the benefit  of the Banks, the
Letter of Credit Issuer,  the Agent and the Trustee under,  and as defined in,
the Credit  Agreement hereinafter  referred to (such  Banks, Letter  of Credit
Issuer, Agent  and Trustee  are hereinafter called  the "Secured  Creditors").
Except as otherwise defined herein,  capitalized terms used herein and defined
in the Credit Agreement shall be used herein as so defined.


                             W I T N E S S E T H :


            WHEREAS,  Reading &  Bates Corporation,  the Borrower,  the Banks,
Credit  Lyonnais  New  York  Branch,  as  Co-Agent  and  Christiania  Bank  og
Kreditkasse, New  York Branch,  as Agent  (the "Agent"),  have entered into  a
Credit Agreement,  dated as of  April 30,  1996 (as modified,  supplemented or
amended from time to time,  the "Credit Agreement"), providing for the  making
of  Loans and  the issuance  of, and  participation in,  Letters of  Credit as
contemplated therein;

            WHEREAS, the  Subsidiary Guarantors have  executed the  Subsidiary
Guaranty  and thereby  guaranteed the  obligations of  the Borrower  under the
Credit Agreement and the other Credit Documents;

            WHEREAS, the Borrower  desires to incur Loans and  to have Letters
of Credit issued for its account under the Credit Agreement;

            WHEREAS,  it is a  condition precedent to the  making of Loans and
the  issuance  of Letters  of Credit  under the  Credit  Agreement and  to the
occurrence  of the Effective Date  that the Assignors  shall have executed and
delivered to the Collateral Agent this Agreement;

            WHEREAS, the Assignors desire to execute this Agreement to satisfy
the conditions described in the preceding paragraph;


            NOW, THEREFORE, in consideration  of the benefits accruing to  the
Assignors, the receipt  and sufficiency of which are  hereby acknowledged, the
Assignors  hereby  make the  following representations  and warranties  to the
Collateral Agent and  hereby covenant and  agree with the Collateral  Agent as
follows:

            SECTION 1.  PLEDGE AND GRANT OF SECURITY INTEREST.

            1.01 Obligations Secured.  The  Agreement is made for the  benefit
of the Secured Creditors to secure (i) the full and prompt payment when due of
(x) the principal of and  interest on the Notes issued, and Loans  made, under
the Credit  Agreement, and all  reimbursement obligations and  Unpaid Drawings
with respect  to the Letters of  Credit issued under the  Credit Agreement and
(y)  all other  obligations and  indebtedness (including,  without limitation,
indemnities,  Fees  and interest  thereon)  of  the  Borrower to  the  Secured
Creditors, whether now existing or hereafter incurred under, arising out of or
in connection with the Credit Agreement and the other Credit Documents and the
due performance  and  compliance  by  the  Borrower with  all  of  the  terms,
conditions  and agreements  contained in  the Credit  Agreement and  the other
Credit Documents;  (ii) any and all  sums advanced by the  Collateral Agent in
order  to preserve  the Collateral  (as hereinafter  defined) or  preserve its
security interest  in the Collateral; (iii) in the event of any proceeding for
the collection or enforcement of any indebtedness, obligations, or liabilities
of the Borrower referred  to in clause  (i) above, after  an Event of  Default
shall  have  occurred  and  be  continuing, the  reasonable  expenses  of  the
Collateral Agent of  re-taking, holding, preparing for sale  or lease, selling
or otherwise disposing  of or realizing on the Collateral,  or of any exercise
by  the Collateral  Agent of  its rights  hereunder, together  with reasonable
attorneys'  fees of counsel to the Collateral  Agent and court costs; and (iv)
all amounts paid by  any Indemnitee as to which such  Indemnitee has the right
to reimbursement  under Section  11 of this  Agreement (all  such obligations,
liabilities, sums  and expenses referred to in  clauses (i) through (iv) above
being  collectively referred to as the "Obligations").  It is acknowledged and
agreed that the  "Obligations" shall include extensions of credit of the types
described above, whether outstanding on the date of this Agreement or extended
from time to time after the date of this Agreement.

            1.02 Pledge  and  Grant  of  Security  Interest.    As  collateral
security for  the Obligations, the Assignors  hereby pledge and  assign to the
Collateral  Agent, for  the benefit  of  the Secured  Creditors, a  continuing
possessory lien  and security interest in  all of the Assignors'  right, title
and  interest in  and to  the Concentration  Account (as  hereinafter defined)
together with  all deposits made from time to time therein and all investments
from time to time therein and/or made with the funds therein  and all cash and
non-cash proceeds of any of the  foregoing, from the date this Agreement until
the termination thereof pursuant to the terms hereof (the "Collateral").

            SECTION 2.  ESTABLISHMENT OF COLLATERAL ACCOUNT; ETC.

            2.01 Establishment.     The  Assignors  currently   maintain  with
Christiania Bank  og Kreditkasse,  Grand Cayman  Branch  ("CBKGC", with  CBKGC
acting as agent  for the Agent with respect  to such account) an  account (No.
4062660601) for  purposes of  this  Agreement (the  "Concentration  Account").
Only  Collateral will  be  deposited  and shall  remain  in the  Concentration
Account until  such Collateral is  released from the Concentration  Account in
accordance with this Agreement.  Subject  to the provisions of this  Agreement
(including  the  automatic   release  provision  of   Section  2.02(b)),   the
Concentration Account shall  be under  the sole  dominion and  control of  the
Collateral  Agent,  with  the  Collateral  Agent  having  the  right  to  make
withdrawals from the balance  of the Concentration  Account from time to  time
therein  in accordance  with  the terms  of  this Agreement.    All Collateral
delivered to or held  by or on behalf of the  Collateral Agent pursuant hereto
shall be held  in the Concentration Account in accordance  with the provisions
hereof.

            2.02 Deposits  to  Concentration Account; etc.   (a) The Assignors
shall deposit  or direct  their Subsidiaries to  deposit in  the Concentration
Account on  a daily basis  all collected (i)  earnings of the  Collateral Rigs
from  any source;  (ii) all  moneys or  other compensation  paid by  reason of
requisition of  title  or for  hire  or other  compulsory acquisition  of  any
Collateral  Rig; and  (iii) proceeds  of  the foregoing  maintained with  such
institutions  to the Concentration Account.  As used herein, "earnings" in (i)
means:

            (x)   all rent, charterhire and other moneys and rights and claims
      to  moneys, other  than the  local currency  portion necessary  to cover
      expenses  relating  to  the  relevant  contract  (the  "Local   Currency
      Portion");

            (y)   all the Assignors'  right, title and interest to  and in any
      moneys  other than the  Local Currency Portion payable to the  Assignors
      under any bareboat or time charter, drilling contract, or other contract
      for the use  or employment of the Collateral Rigs,  and all other rights
      and benefits whatsoever accruing to the Assignors thereunder,  including
      (but without  prejudice to the  generality of the foregoing)  all claims
      for damages  for any breach by  any charterer or other  party thereto of
      any such bareboat or time  charter, drilling contract, or other contract
      for the use or employment of the Collateral Rigs; and 

            (z)   all freights (if any), passage  moneys (if any), hire moneys
      (if any), compensation (if any) payable to the Assignors in the event of
      the  requisition of  the  Collateral  Rigs  for hire,  remuneration  for
      salvage and towage services (if any), demurrage and detention moneys (if
      any), and  any other earnings  whatsoever due  or to become  due to  the
      Assignors.

            (b)  Subject  to  the  provisions  of  Section  2.02(c)  of   this
Agreement, the Collateral Agent's security interest in the funds maintained in
the  Concentration Account  shall  automatically be  and  be deemed  released,
without the need for any action on the part of the Collateral Agent, from time
to time as requested or directed by the Borrower.

            (c)  Upon  the  occurrence of  an  Event  of Default  pursuant  to
Section 9.05 of the Credit Agreement (a "Bankruptcy  Default") and without any
further act or notice, or upon the giving by the Collateral Agent of a written
notice (a "Release Termination Notice")  to the Assignors after the occurrence
and  during the  continuance of an  Event of  Default other  than a Bankruptcy
Default, the automatic release set forth  in Section 2.02(b) of this Agreement
shall terminate.

            (d)  Upon the  occurrence of  an Event  of Default, the  Assignors
shall continue to deposit, or cause  to be deposited, all payments of earnings
of the Collateral Rigs directly into the Concentration Account.

            It is hereby expressly  agreed that, anything contained herein  to
the  contrary notwithstanding,  the Assignors  shall remain  liable under  all
charters  and contracts  pertaining  to  the Collateral  Rigs  to perform  the
obligations assumed by them thereunder, and the Collateral Agent shall have no
obligation or  liability of any  nature whatsoever  under any such  charter or
contract by  reason of,  or  arising out  of, this  Agreement,  nor shall  the
Collateral  Agent be  required to  assume  or be  obligated in  any manner  to
perform or  fulfill any obligation of  the Assignors under or  pursuant to any
such charter or  contract or to make any payment or make any inquiry as to the
nature or  sufficiency of any  payment received  by the Collateral  Agent, or,
unless and until indemnified to its satisfaction, to present or file any claim
or to take any other action  to collect or enforce the payment of  any amounts
which may have been assigned to it or to which it may be entitled hereunder or
pursuant hereto at any time or times.

            2.03  Investment  of Funds Deposited in the Concentration Account.
Until  the date on  which the Total  Commitment under the  Credit Agreement is
terminated and  no Letter  of Credit remains  outstanding and  all Obligations
have been paid  in full, and so long  as no Event of Default  is in existence,
the Collateral Agent will from time to time, at the request of the  Assignors,
invest funds on deposit in the Concentration Account in Cash Equivalents which
are  substantially  similar  to  those  investments  being  requested  by  the
Assignors on  or about the  date hereof  or such other  investments as  may be
requested by the Assignors and acceptable to the Collateral Agent  in its sole
discretion (investments  permitted under this  Section 2.03 are  herein called
"Permitted Investments").  All investments  made pursuant to this Section 2.03
(and any instruments evidencing same), and all proceeds thereof, shall be held
in the Concentration Account as part  of the Collateral.  All such investments
shall be  made in  the name of  the Collateral  Agent.   All risk  of loss  in
respect  of investments  made pursuant to  this Section  2.03 shall  be on the
Assignors.

            SECTION 3.  FURTHER ASSURANCES.

            The Assignors will, at any time and from time to  time, at its own
expense, promptly execute and deliver all further agreements, instruments  and
other documents and take all further action  that may be necessary or that the
Collateral Agent  may reasonably request in  order to perfect and  protect the
security  interest purported to  be created hereby or  otherwise to enable the
Collateral Agent to exercise and enforce its rights and remedies hereunder.

            SECTION 4.  TRANSFERS AND OTHER LIENS.

            The  Assignors  will  not,  without  the  written consent  of  the
Collateral  Agent, (i)  sell,  assign (by  operation of  law or  otherwise) or
otherwise dispose of  any interest in the Collateral or  (ii) create or suffer
to exist  any Lien, security interest  or other charge or  encumbrance upon or
with respect to any Collateral except  for the security interest purported  to
be created hereby.

            SECTION 5.  ATTORNEY-IN-FACT.

            The Assignors  hereby appoint the Collateral  Agent the Assignors'
attorney-in-fact, with full authority only  after the occurrence of and during
the continuance  of  an  Event of  Default,  in the  place  and stead  of  the
Assignors and in the name of the Assignors or otherwise, from time to  time in
the Collateral Agent's  discretion to execute  any instrument and to  take any
other  action which  the Collateral  Agent may in  good faith  reasonably deem
necessary  or advisable  to accomplish  the purposes  of this Agreement  or to
facilitate the assignment or other transfer  by the Collateral Agent of any or
all of  its rights hereunder,  including, without limitation, (i)  to receive,
endorse  and  collect  all  instruments  made payable  to  the  Assignors  and
representing  any interest  payment or  other distribution  in respect  of the
Collateral  and to give  full discharge for  the same and (ii)  to execute and
deliver any and all  instruments and other documents that the Collateral Agent
may request in connection with the exercise  by the Collateral Agent of any or
all of  its rights hereunder.   Such  appointment of the  Collateral Agent  as
attorney-in-fact is irrevocable and coupled with an interest.

            SECTION 6.  PERFORMANCE BY THE COLLATERAL AGENT.

            If  the Assignors  fail  to perform  any  agreement or  obligation
contained herein, the Collateral Agent itself may perform or cause performance
of such agreement or obligation, and the reasonable expenses of the Collateral
Agent  incurred in  connection therewith  shall be  payable to  the Collateral
Agent by the Assignors.

            SECTION 7.  RESPONSIBILITY OF THE COLLATERAL AGENT.

            Other  than the  exercise of  reasonable care  to assure  the safe
custody of  the Collateral  while held hereunder,  the Collateral  Agent shall
have no duty or liability  to preserve rights pertaining thereto and  shall be
relieved  of all  responsibility for  the Collateral  upon surrendering  it or
tendering surrender  of it to  the Assignors.   The Collateral Agent  shall be
deemed to have exercised  reasonable care in  the custody and preservation  of
the  Collateral in  its possession  if  the Collateral  is accorded  treatment
substantially  equal  to that  which  the  Collateral  Agent accords  its  own
property.   Without  limiting the  generality  of the  foregoing, neither  the
Collateral Agent nor any of its directors, officers, agents or employees shall
be  liable  (i)  for  any  failure to  invest  or  reinvest  any  cash in  the
Concentration  Account in accordance herewith  in the absence  of its or their
own gross  negligence or  willful misconduct  or for  any  losses incurred  by
reason of investments made by the Collateral Agent pursuant to Section 2.03 or
(ii)  for any action taken or omitted to  be taken by the Collateral Agent (x)
in good faith  in accordance with  the advice of counsel  with respect to  any
question as to the  construction of any provision hereof  or any action to  be
taken  by  the  Collateral Agent  hereunder  or  (y)  in accordance  with  any
instructions or other notice which the Collateral Agent believes in good faith
to be properly given by the Assignors hereunder.  This Section 7 shall have no
application to CBK except in its capacity as Collateral Agent.

            SECTION 8.  REMEDIES UPON DEFAULT.

            If any Event of Default shall occur and be continuing:

            (a)  The  Collateral  Agent may  (i)  exercise in  respect  of the
Collateral, in addition  to other rights  and remedies provided for  herein or
otherwise available  to it, all of the rights  and remedies of a secured party
on  default under the Uniform Commercial  Code then in effect  in the State of
New York, (ii) withdraw any funds, if any, from the Concentration Account, and
(iii) without  notice  except as  specified  below, sell  any  or all  of  the
Collateral  in one  or more  parcels  at any  public or  private sale,  at any
exchange, broker's  board  or at  any  of the  Collateral  Agent's offices  or
elsewhere, for cash, on credit  or for future delivery,  and at such price  or
prices and upon such other terms as the Collateral Agent may deem commercially
reasonable.  The Assignors  agree that, to the extent notice  of sale shall be
required by law,  at least 10  Business Days' notice  to the Assignors of  the
time and place  of any public sale or the time after which any private sale or
other disposition is to be made shall constitute reasonable notification.  The
Collateral  Agent  shall not  be  obligated  to make  any  sale of  Collateral
regardless  of notice  of sale having  been given.   The  Collateral Agent may
adjourn any public or private sale from time to time  (by announcement, in the
case of any public sale, at the time and place fixed  therefor), and such sale
may, without further  notice, be made at the time and place to which it was so
adjourned.

            (b)  All cash proceeds received by the Collateral Agent in respect
of any sale  of, collection from, or other realization upon all or any part of
the Collateral shall  be applied in  accordance with the Credit  Agreement and
the  Mortgages (as defined in the Credit Agreement) relating to the Collateral
Rigs.

            (c)  Notwithstanding  the foregoing provisions  of this Section 8,
the Collateral Agent may elect,  by notice to the Assignors, to retain any and
all of  the Collateral, to  collect or  cause the collection  of the  proceeds
thereof and  to hold any and  all of such Collateral  as continuing collateral
for, and to apply at such times and in such manner as the Collateral Agent may
elect any  and all of such  Collateral to pay, the  Obligations; provided that
the Collateral is valued at fair market value for purposes  of determining the
amount by  which the  Obligations  shall be  reduced in  consideration of  the
retention  of such  Collateral.   The Assignors hereby  waive, to  the fullest
extent permitted  by law,  any and  all rights  they may  have to  require the
Collateral Agent to sell or otherwise dispose of any or all of the Collateral.

            SECTION 9.  APPLICATION OF PROCEEDS.

            (a)  All moneys collected by the Collateral Agent upon any sale or
other disposition of  any Collateral, together with all  other moneys received
by  the  Collateral  Agent  hereunder  or under  any  of  the  other  Security
Documents, shall be applied as follows:

        (i) first, to the payment of all amounts owing the Collateral Agent of
      the type described in clauses (ii) and (iii) of Section 1.01;

       (ii) second, to the extent moneys remain after the application pursuant
      to the  preceding  clause (i),  an  amount  equal to    the  outstanding
      Obligations  shall be  paid  to  the Secured  Creditors  as provided  in
      Section 9(c),  with each Secured  Creditor receiving an amount  equal to
      such Obligations held by it or, if the proceeds are  insufficient to pay
      in full all  such Obligations, its Pro Rata Share  (as defined below) of
      the amount remaining to be distributed; and

      (iii) third, to the extent moneys remain after the  application pursuant
      to the  preceding clauses (i) and (ii), and following the termination of
      this Agreement pursuant to Section  12, any surplus then remaining shall
      be paid to the Assignors, subject,  however, to the rights of the holder
      of any  then  existing Lien  of which  the Collateral  Agent has  actual
      notice (without investigation).

            (b)   For purposes of this Agreement  "Pro Rata Share" shall mean,
when calculating a Secured Creditor's portion of any distribution or amount in
respect of any Obligations, the amount (expressed as  a percentage) equal to a
fraction the  numerator of which is the then unpaid amount of such Obligations
owing  to or held by such Secured Creditor and the denominator of which is the
then outstanding  amount of all such Obligations.  For purposes of determining
the amount payable  to each  Secured Creditor, the  Collateral Agent shall  be
entitled to request each Secured Creditor to furnish it with written notice of
the amount of Obligations then owed to  it and shall be entitled to rely  upon
the amounts stated therein in making such distribution.

            (c)   All payments  required  to  be  made  to  Secured  Creditors
hereunder  shall  be made  to the  Agent under  the  Credit Agreement  for the
account of the Secured Creditors.

            (d)   For  purposes of  applying  payments received  in accordance
with this Section 9, the  Collateral Agent shall be entitled to rely  upon (i)
the Agent  under the  Credit Agreement  and (ii) the  Secured Creditors  for a
determination (which the Agent and  each Secured Creditor, by their acceptance
of  the benefits of this Agreement shall  be obligated to provide upon request
of the Collateral  Agent) of the  outstanding Obligations owed to  the Secured
Creditors.  Unless it has actual knowledge (including by way of written notice
from  a  Secured Creditor)  to  the  contrary,  the  Agent  under  the  Credit
Agreement, in furnishing  information pursuant to the  preceding sentence, and
the Collateral Agent,  in acting hereunder, shall  be entitled to assume  that
(x) no obligations other than  principal, interest and regularly accruing fees
are owing to any Secured Creditor.

            SECTION  10.  REPRESENTATIONS, WARRANTIES  AND  COVENANTS  OF  THE
ASSIGNORS.

            The  Assignors represent  and  warrant  that on  the  date of  the
deposit by  the Assignors of  any Collateral in the  Concentration Account, it
will  be the legal,  record and  beneficial owner of,  and will  have good and
marketable title  to, the  Collateral, subject to  no pledge,  lien, mortgage,
hypothecation, security interest, charge, option or other interests other than
the  lien created by  this Agreement.   The Assignors covenant  and agree that
they will defend the Collateral Agent's right, title  and security interest in
and to the Collateral and the  proceeds thereof against the claims and demands
of all Persons whomsoever; and the Assignors covenant and agree that they will
have  like title  to  and right  to  pledge any  other  property  at any  time
hereafter pledged  to the  Collateral Agent as  Collateral hereunder  and will
likewise  defend  the right  thereto  and  security  interest therein  of  the
Collateral Agent.

            SECTION 11.  INDEMNITY.

            11.1   Indemnity.    (a)    The  Assignors  agree  to   indemnify,
reimburse  and hold  the Collateral  Agent,  each Secured  Creditor and  their
respective successors, assigns, employees, agents and servants (hereinafter in
this Section 11.1 referred  to individually as "Indemnitee," and  collectively
as "Indemnitees") harmless from any and all liabilities, obligations, damages,
injuries, penalties, claims,  demands, actions, suits,  judgments and any  and
all costs  and expenses (including  reasonable attorneys'  fees and  expenses)
(for  the purposes of this Section  11.1 the foregoing are collectively called
"expenses")  of whatsoever  kind and  nature imposed  on, asserted  against or
incurred  by any of the  Indemnitees in any way relating  to or arising out of
this  Agreement,  the Credit  Agreement,  any  other  Credit Document  or  the
documents executed  in connection herewith and  therewith or in any  other way
connected with  the administration of the transactions contemplated hereby and
thereby or the enforcement of any of  the terms of, or the preservation of any
rights  under  any such  Credit  Document or  other  document, or  in  any way
relating to or arising out  of the manufacture, ownership, ordering, purchase,
delivery,  control,  acceptance,  lease,  financing,   possession,  operation,
condition,  sale,  return or  other  disposition,  or  use of  the  Collateral
(including,  without  limitation, latent  or  other  defects, whether  or  not
discoverable), the  violation  of the  laws  of any  country,  state or  other
governmental  body or  unit, any tort  (including, without  limitation, claims
arising  or imposed  under the  doctrine  of strict  liability, or  for or  on
account of injury to or the death of any Person (including any Indemnitee), or
property  damage), or  contract claim;  provided that  no Indemnitee  shall be
indemnified   pursuant  to  this  Section  11.1(a)   for  losses,  damages  or
liabilities  to the extent caused by the gross negligence or wilful misconduct
of  such Indemnitee.   The  Assignors agree  that upon  written notice  by any
Indemnitee of the  assertion of such a liability,  obligation, damage, injury,
penalty, claim, demand,  action, judgment or suit, the  Assignors shall assume
full responsibility  for the defense  thereof.  Each Indemnitee  agrees to use
its best efforts  to promptly notify  the Assignors of  any such assertion  of
which such Indemnitee has knowledge.

            (b)   Without  limiting the  application  of Section  11.1(a), the
Assignors agree  to pay,  or reimburse  the Collateral Agent  for any  and all
fees,  costs and expenses  of whatever kind  or nature incurred  in connection
with the creation, preservation or  protection of the Collateral Agent's Liens
on,  and security interest in, the  Collateral, including, without limitation,
all fees and taxes in  connection with the recording or filing  of instruments
and documents  in public offices, payment  or discharge of any  taxes or Liens
upon or in  respect of the Collateral, premiums for  insurance with respect to
the Collateral  and all  other fees,  costs  and expenses  in connection  with
protecting, maintaining  or  preserving  the  Collateral  and  the  Collateral
Agent's interest  therein, whether through judicial  proceedings or otherwise,
or in defending or  prosecuting any actions, suits or proceedings  arising out
of or relating to the Collateral.

            (c)   Without limiting the application of Section 11.1(a) or  (b),
the  Assignors agree to pay, indemnify and  hold each Indemnitee harmless from
and against  any loss, costs, damages  and expenses which such  Indemnitee may
suffer,   expend  or  incur   in  consequence  of   or  growing   out  of  any
misrepresentation by the Assignors in  this Agreement, the Credit Agreement or
any other  Credit Document or in  any statement or writing  contemplated by or
made or delivered pursuant to or in connection with this Agreement, the Credit
Agreement or any other Credit Document.

            (d)   If and to  the extent that the obligations  of the Assignors
under this Section 11.1 are unenforceable for any reason, the Assignors hereby
agree to make the maximum contribution to the payment and satisfaction of such
obligations which is permissible under applicable law.

            11.2   Indemnity Obligations Secured by Collateral; Survival.  Any
amounts paid by  any Indemnitee as to  which such Indemnitee has  the right to
reimbursement shall constitute  Obligations secured  by the  Collateral.   The
indemnity  obligations of  the Assignors  contained in  this Section  11 shall
continue in  full force and effect notwithstanding the full payment of all the
Notes  issued under the Credit Agreement and  all of the other Obligations and
notwithstanding the discharge thereof.

            SECTION 12.  TERMINATION; RELEASE; PARTIAL RELEASE.

            (a)   On the date on which the Credit Agreement and all Letters of
Credit  shall have been  terminated, when no Note  remains outstanding and all
Obligations shall  have been  irrevocably paid in  full, this  Agreement shall
terminate, and  the  Collateral  Agent, at  the  request and  expense  of  the
Assignors, will execute  and deliver to the  Assignors a proper  instrument or
instruments acknowledging the satisfaction and termination of this  Agreement,
and will duly assign, transfer and deliver  to the Assignors (without recourse
and without  any representation or  warranty) such  of the  Collateral as  may
remain  in the possession of the Collateral  Agent together with any moneys at
the time held by the Collateral Agent hereunder.

            (b)   Subject to Section  2.02 hereof and so  long as no Event  of
Default shall be in existence,  upon instructions of the Assignors, Collateral
shall be  released  from the  Concentration  Account to  the  Assignors or  as
directed by the Assignors.

            SECTION 13.  NOTICES, ETC.

            Except  as otherwise  expressly provided  herein, all  notices and
other communications  provided  for hereunder  shall be  delivered and  become
effective in accordance with Section 12.03 of the Credit Agreement.

            SECTION 14.  MISCELLANEOUS.

            This  Agreement shall  be  binding upon  the  Assignors and  their
successors and  assigns (although the Assignors may not assign their rights or
obligations under this  Agreement) and shall  inure to the  benefit of and  be
enforceable  by the  Collateral Agent  and its  successors and  assigns.   The
headings in  this Agreement are for  purposes of reference only  and shall not
limit  or  define the  meaning  hereof.   This  Agreement and  the  rights and
obligations of the parties hereunder shall be construed in accordance with and
be governed  by the  law of the  State of  New York.   This  Agreement may  be
executed in  any number of counterparts,  each of which shall  be an original,
but all of which shall constitute one instrument.  This Agreement shall become
effective on the date  on which each  of the parties  shall have executed  and
delivered a copy  hereof.  In the  event that any provision  of this Agreement
shall prove to be invalid or  unenforceable, such provision shall be deemed to
be severable from the  other provisions of this  Agreement which shall  remain
binding on all parties hereto.

            SECTION 15.  WAIVER; AMENDMENT.

            None of the terms and conditions of this Agreement may be changed,
waived, modified  or varied in  any manner  whatsoever unless in  writing duly
signed by the Assignors and the Collateral Agent.

            SECTION 16.  SECURED CREDITOR ACKNOWLEDGMENT.

            By accepting the benefits of this Agreement, each Secured Creditor
acknowledges  and agrees  that the  rights and  obligations of  the Collateral
Agent shall be as set forth in Section 12 of the Credit Agreement.

            IN WITNESS WHEREOF,  the Assignors and  the Collateral Agent  have
caused this  Agreement to  be executed  by their  duly  elected officers  duly
authorized as of the date first above written.

ADDRESS:

901 Threadneedle                    READING & BATES DRILLING CO.
Suite 200
Houston, Texas  77079               By________________________________
Attention:  General Counsel            Title:  
Tel: (713) 496-5000
Fax: (713) 496-0285                 READING & BATES EXPLORATION CO.

                                    By_______________________________
                                      Title:

                                    READING & BATES (A) PTY. LTD.

                                    By_______________________________
                                      Title:

                                    READING AND BATES BORNEO DRILLING
                                      CO. LTD.

                                    By_______________________________
                                      Title:


11 West 42nd Street                 CHRISTIANIA BANK og KREDITKASSE,
New York, New York  10036            NEW YORK BRANCH
Attention: Hans Chr. Kjelsrud
Tel: (212) 827-4814                 By________________________________
Fax: (212) 827-4888                   Title:
                                    By________________________________
                                      Title:    


                                                                 Exhibit 10.87




                              SUBSIDIARY GUARANTY


            SUBSIDIARY  GUARANTY, dated  as  of  April 30,  1996  made by  the
undersigned (each  a "Guarantor" and collectively, the  "Guarantors").  Except
as  otherwise defined  herein,  terms used  herein and  defined in  the Credit
Agreement (as hereinafter defined) shall be used herein as therein defined.


                             W I T N E S S E T H :


            WHEREAS, Reading & Bates Corporation, Reading & Bates Drilling Co.
(the  "Borrower"),  various financial  institutions  from time  to  time party
thereto  (the "Banks"),  Credit  Lyonnais  New York  Branch,  as Co-Agent  and
Christiania Bank og Kreditkasse, New York Branch,  as Agent (the "Agent") have
entered  into a  Credit Agreement,  dated as  of April  30, 1996  (as amended,
modified or supplemented from time to time, the "Credit Agreement"), providing
for the making of Loans and the issuance of,  and participation in, Letters of
Credit as contemplated  therein (the  Banks, the Agent,  the Letter of  Credit
Issuer, the  Collateral Agent and  the Trustee are herein  collectively called
the "Creditors");

            WHEREAS, the  Borrower owns, directly  or indirectly, 100%  of the
capital stock of each Guarantor;

            WHEREAS, it is a condition to the making of Loans and the issuance
of, and  participation in, Letters  of Credit under the  Credit Agreement that
each Guarantor shall have executed and delivered this Guaranty; and

            WHEREAS, each  Guarantor will obtain benefits  from the incurrence
of  Loans by the  Borrower and  the issuance  of Letters  of Credit  under the
Credit Agreement and,  accordingly, desires to execute this  Guaranty in order
to satisfy  the conditions described in the  preceding paragraph and to induce
the Banks to  make Loans to  the Borrower and the  Letter of Credit  Issuer to
issue Letters of Credit;


            NOW, THEREFORE,  in  consideration  of  the  foregoing  and  other
benefits accruing to each Guarantor, the receipt and sufficiency of which  are
hereby acknowledged, each Guarantor hereby makes the following representations
and warranties  to the  Creditors and  hereby covenants  and agrees with  each
Creditor as follows:

            1.  Each  Guarantor,   jointly  and  severally,   irrevocably  and
unconditionally, guarantees, as  primary obligor and not merely  as surety, to
the  Creditors the  full and prompt  payment when  due (whether  at the stated
maturity, by acceleration  or otherwise) of (x) the principal  of and interest
on  the Notes issued by, and the Loans  made to, the Borrower under the Credit
Agreement, and all reimbursement obligations and Unpaid Drawings with  respect
to the Letters  of Credit issued under the Credit Agreement  and (y) all other
obligations (including  obligations which,  but for  the automatic stay  under
Section 362(a) of the Bankruptcy Code, would become due) and liabilities owing
by the Borrower to the Creditors  under the Credit Agreement (including, with-
out  limitation, indemnities,  Fees  and  interest  thereon) now  existing  or
hereafter incurred  under, arising out  of or  in connection  with the  Credit
Agreement or any other Credit Document and the due performance and  compliance
with the  terms of the Credit  Documents by the Borrower  (all such principal,
interest,  liabilities and  obligations being  herein collectively  called the
"Guaranteed Obligations").   Each Guarantor understands,  agrees and  confirms
that the Creditors  may enforce  this Guaranty up  to the full  amount of  the
Guaranteed Obligations  against each Guarantor without  proceeding against any
other  Guarantor or  the Borrower,  against  any security  for the  Guaranteed
Obligations,  or under  any other guaranty  covering all  or a  portion of the
Guaranteed Obligations.   All payments  by each Guarantor under  this Guaranty
shall be  made on the  same basis as payments  by the Borrower  under Sections
4.03 and 4.04 of the Credit Agreement.

            2.  Additionally,   each   Guarantor,   jointly   and   severally,
unconditionally  and  irrevocably, guarantees  the  payment  of  any  and  all
Guaranteed Obligations of the Borrower to  the Creditors whether or not due or
payable by the Borrower upon the occurrence in respect of the  Borrower of any
of  the  events  specified  in  Section  9.05  of  the  Credit Agreement,  and
unconditionally and irrevocably, jointly  and severally, promises to pay  such
Guaranteed Obligations to  the Creditors, or order, on demand, in lawful money
of  the United States.  This Guaranty  shall constitute a guaranty of payment,
and not of collection.

            3.  The  liability of  each Guarantor  hereunder is  exclusive and
independent of any  security for or other guaranty of  the indebtedness of the
Borrower whether  executed by such  Guarantor, any other Guarantor,  any other
guarantor or by any other party, and the liability of each Guarantor hereunder
shall  not be affected or  impaired by (a) any direction  as to application of
payment by  the Borrower or  by any other party,  (b) any other  continuing or
other  guaranty, undertaking  or maximum  liability of a  guarantor or  of any
other party as to the  indebtedness of the Borrower, (c) any payment  on or in
reduction  of any  such other  guaranty or  undertaking, (d)  any dissolution,
termination or increase, decrease or change in  personnel by the Borrower, (e)
any payment made to any Creditor on the indebtedness which any Creditor repays
the  Borrower  pursuant  to  court order  in  any  bankruptcy, reorganization,
arrangement, moratorium or other debtor relief proceeding, and each  Guarantor
waives any right to  the deferral or modification of its obligations hereunder
by reason of any such proceeding, (f) any action or inaction by  the Creditors
as  contemplated in Section  6 hereof, or (g)  any invalidity, irregularity or
unenforceability  of  all or  part  of the  Guaranteed  Obligations or  of any
security therefor.

            4.  The obligations of each Guarantor hereunder are independent of
the obligations of any  other Guarantor, any other guarantor or  the Borrower,
and a  separate action or actions  may be brought and  prosecuted against each
Guarantor whether or not  action is brought  against any other Guarantor,  any
other guarantor  or the Borrower and  whether or not any  other Guarantor, any
other guarantor or the Borrower be joined in any  such action or actions.  Any
payment  by the  Borrower or  other circumstance  which operates  to toll  any
statute of limitations as to the Borrower shall operate to toll the statute of
limitations as to each Guarantor.

            5.  Each Guarantor  hereby waives  notice  of acceptance  of  this
Guaranty  and notice  of  any liability  to  which it  may  apply, and  waives
promptness, diligence,  presentment, demand  of  payment, protest,  notice  of
dishonor or nonpayment of any such liabilities, suit or taking of other action
by the Agent or any other Creditor against, and any other notice to, any party
liable  thereon  (including  such  Guarantor,  any  other   guarantor  or  the
Borrower).

            6.  Any Creditor may at any time and from time to time without the
consent of, or  notice to, any Guarantor, without  incurring responsibility to
such  Guarantor,  without  impairing  or  releasing  the  obligations of  such
Guarantor hereunder, upon or without  any terms or conditions and in  whole or
in part:

            (a)   change the  manner,  place or  terms of  payment of,  and/or
      change or extend  the time of  payment of,  renew or alter,  any of  the
      Guaranteed Obligations, any security therefor, or any liability incurred
      directly or indirectly in respect  thereof, and the guaranty herein made
      shall  apply  to the  Guaranteed  Obligations as  so  changed, extended,
      renewed or altered;

            (b)   take and  hold security  for the  payment of the  Guaranteed
      Obligations and  sell, exchange,  release,  surrender, realize  upon  or
      otherwise  deal with  in any  manner and  in any  order any  property by
      whomsoever  at any  time pledged  or mortgaged  to secure,  or howsoever
      securing, the  Guaranteed Obligations or any  liabilities (including any
      of those hereunder)  incurred directly or indirectly  in respect thereof
      or hereof, and/or any offset thereagainst;

            (c)   exercise or  refrain from exercising any  rights against the
      Borrower or others or otherwise act or refrain from acting;

            (d)   settle or compromise any of the Guaranteed Obligations,  any
      security therefor or  any liability (including  any of those  hereunder)
      incurred directly  or indirectly in  respect thereof or hereof,  and may
      subordinate the payment of all or any part thereof to the payment of any
      liability (whether  due  or not)  of the  Borrower to  creditors of  the
      Borrower;

            (e)   apply  any sums by whomsoever  paid or howsoever realized to
      any liability or liabilities of the Borrower to the Creditors regardless
      of what liabilities of the Borrower remain unpaid;

            (f)   release or substitute any one or more endorsers, guarantors,
      any Credit Party or other obligors;

            (g)   consent to or waive  any breach of, or any act,  omission or
      default under, any of the Credit  Documents or any of the instruments or
      agreements referred to therein, or otherwise amend, modify or supplement
      any  of the Credit Documents or any  of such other instruments or agree-
      ments; and/or

            (h)   act or  fail  to act  in  any  manner referred  to  in  this
      Guaranty which  may deprive such  Guarantor of its right  to subrogation
      against the  Borrower to  recover full indemnity  for any  payments made
      pursuant to this Guaranty.

            7.  No invalidity, irregularity or unenforceability of all or  any
part  of the Guaranteed Obligations or  of any security therefor shall affect,
impair  or be a defense to this  Guaranty, and this Guaranty shall be primary,
absolute and unconditional notwithstanding the  occurrence of any event or the
existence  of  any other  circumstances  which  might  constitute a  legal  or
equitable discharge  of a surety  or guarantor except  payment in full  of the
Guaranteed Obligations.

            8.  This Guaranty is a continuing one and all liabilities to which
it applies  or may apply under the terms hereof shall be conclusively presumed
to have been created in reliance hereon.   No failure or delay on the  part of
any  Creditor in  exercising any  right,  power or  privilege hereunder  shall
operate as a waiver thereof;  nor shall any single or partial exercise  of any
right, power  or privilege  hereunder preclude any  other or  further exercise
thereof or the  exercise of any other right,  power or privilege.   The rights
and remedies  herein expressly specified  are cumulative and not  exclusive of
any rights or remedies which any Creditor would otherwise  have.  No notice to
or demand on  any Guarantor in  any case shall  entitle such Guarantor  to any
other further notice or demand in similar or other circumstances or constitute
a waiver of the rights of any  Creditor to any other or further action  in any
circumstances without notice or demand.   It is not necessary for any Creditor
to  inquire  into  the capacity  or  powers  of the  Borrower  or  any of  its
Subsidiaries  or  the  officers,  directors,  partners  or  agents  acting  or
purporting  to act  on its  behalf, and  any indebtedness  made or  created in
reliance  upon the  professed  exercise  of such  powers  shall be  guaranteed
hereunder.

            9.  Any indebtedness of the Borrower  now or hereafter held by any
Guarantor  is hereby subordinated  to the indebtedness of  the Borrower to the
Creditors;  and such  indebtedness of the  Borrower to  any Guarantor,  if the
Agent, after  an  Event  of  Default  has  occurred,  so  requests,  shall  be
collected,  enforced  and  received  by  such Guarantor  as  trustee  for  the
Creditors and be paid over to the Creditors on account of  the indebtedness of
the  Borrower  to the  Creditors, but  without affecting  or impairing  in any
manner the  liability of such  Guarantor under  the other  provisions of  this
Guaranty.  Prior to  the transfer by any Guarantor  of any note or  negotiable
instrument evidencing any indebtedness of the Borrower to such Guarantor, such
Guarantor shall mark such note or negotiable instrument with a legend that the
same is subject to this subordination.  Without limiting the generality of the
foregoing, each Guarantor  hereby agrees with the  Creditors that it will  not
exercise any right of subrogation which it may at any time otherwise have as a
result  of  this Guaranty  (whether  contractual,  under  Section 509  of  the
Bankruptcy  Code  or otherwise)  until  all Guaranteed  Obligations  have been
irrevocably paid in full in cash.

            10.  (a)  Each Guarantor  waives any  right  (except as  shall  be
required by applicable  law and cannot be waived) to  require the Creditors to
(A)  proceed against the Borrower, any other Guarantor, any other guarantor or
any other party,  (B) proceed against  or exhaust any  security held from  the
Borrower, any other  Guarantor, any other guarantor or any  other party or (C)
pursue any other  remedy in the Creditors'  power whatsoever.  Each  Guarantor
waives any defense based on or arising out of any defense of the Borrower, any
other Guarantor, any other guarantor or  any other party other than payment in
full of the  Guaranteed Obligations, including without limitation  any defense
based  on or  arising  out  of  the  disability of  the  Borrower,  any  other
Guarantor, any other guarantor or any  other party, or the unenforceability of
the  Guaranteed  Obligations  or  any part  thereof  from  any  cause,  or the
cessation  from any cause of the liability  of the Borrower other than payment
in full of the Guaranteed Obligations.   The Creditors may, at their election,
foreclose on any  security held by the Agent or the  other Creditors by one or
more judicial  or nonjudicial sales, whether  or not every aspect  of any such
sale  is  commercially reasonable  (to the  extent such  sale is  permitted by
applicable law),  or exercise any other right or remedy the Creditors may have
against the Borrower or any other party, or any security, without affecting or
impairing in  any way the liability  of any Guarantor hereunder  except to the
extent the  Guaranteed Obligations  have been  paid in  full.  Each  Guarantor
waives any defense  arising out of  any such election  by the Creditors,  even
though  such  election   operates  to  impair  or  extinguish   any  right  of
reimbursement  or subrogation  or  other  right or  remedy  of such  Guarantor
against the Borrower or any other party or any security.

            (b)  Each  Guarantor   waives   all  presentments,   demands   for
performance,  protests and  notices, including  without limitation  notices of
nonperformance, notices of protest, notices of dishonor, notices of acceptance
of this Guaranty, and notices  of the existence, creation or incurring  of new
or  additional indebtedness.   Each Guarantor  assumes all  responsibility for
being and  keeping itself informed  of the Borrower's financial  condition and
assets, and  of all other circumstances bearing upon the risk of nonpayment of
the Guaranteed Obligations and the nature, scope and extent of the risks which
such Guarantor  assumes and  incurs hereunder, and  agrees that  the Creditors
shall  have  no duty  to advise  any Guarantor  of  information known  to them
regarding such circumstances or risks.

            11.  The Creditors agree that this  Guaranty may be enforced  only
by the action of the  Agent or the Collateral Agent, in each  case acting upon
the instructions  of the Required  Banks and that  no Creditor shall  have any
right individually  to seek to enforce  or to enforce this  Guaranty, it being
understood and  agreed that such rights  and remedies may be  exercised by the
Agent or the Collateral Agent for the benefit of the Creditors upon  the terms
of  this Guaranty.  The Creditors further  agree that this Guaranty may not be
enforced  against any  director,  officer,  employee  or  stockholder  of  any
Guarantor  (except  to  the  extent  such  stockholder  is  also  a  Guarantor
hereunder).

            12.  Each Guarantor  covenants and  agrees that on  and after  the
date  hereof and  until the termination  of the  Total Commitment  and when no
Letter of  Credit or Note  remains outstanding and all  Guaranteed Obligations
have  been  paid in  full, such  Guarantor shall  take,  or will  refrain from
taking, as the  case may be, all actions that are necessary to be taken or not
taken so that  no violation of any provision, covenant  or agreement contained
in Section 7 or 8 of the Credit Agreement, and so that no Event of Default, is
caused by the actions of such Guarantor or any of its Subsidiaries.

            13.  The  Guarantors hereby jointly and severally agree to pay all
reasonable out-of-pocket  costs and  expenses (x), after  an Event  of Default
shall have occurred and be continuing, of each Creditor in connection with the
enforcement  of this  Guaranty and  the protection  of such  Creditor's rights
hereunder   (including,  without   limitation,   the   reasonable   fees   and
disbursements of counsel  (including in-house counsel) employed by  any of the
Creditors) and  (y) of the Agent  in connection with any  amendment, waiver or
consent relating hereto  (including, without limitation,  the reasonable  fees
and  disbursements of  counsel  (including in-house  counsel) employed  by the
Agent.

            14.  This Guaranty  shall be binding  upon each Guarantor  and its
successors  and assigns and  shall inure to  the benefit of  the Creditors and
their successors and assigns.

            15.  Neither  this  Guaranty  nor  any  provision  hereof  may  be
changed, waived, discharged  or terminated except with the  written consent of
the Required Banks (or to the  extent required by Section 12.12 of the  Credit
Agreement, with the written consent of  each Bank) and each Guarantor affected
thereby (it being  understood that the  addition or  release of any  Guarantor
hereunder  shall not  constitute a  change, waiver,  discharge or  termination
affecting any Guarantor other than the Guarantor so added or released).

            16.  Each Guarantor acknowledges  that an executed  (or conformed)
copy of each of the Credit Documents has been made available to  its principal
executive officers and such officers are familiar with the contents thereof.

            17.  In  addition to  any rights  now  or hereafter  granted under
applicable law  (including, without  limitation, Section 151  of the  New York
Debtor and Creditor Law) and not by way of limitation of any such rights, upon
the occurrence and during the continuance of an Event of Default (such term to
mean and include  any "Event of  Default" as defined  in the Credit  Agreement
continuing  after any  applicable  grace  period),  each  Creditor  is  hereby
authorized at any time or  from time to time, without notice to  any Guarantor
or to any other Person, any such notice being expressly waived, to set off and
to  appropriate and apply  any and all  deposits (general or  special) and any
other indebtedness at  any time held or owing  by such Creditor to or  for the
credit  or the  account  of such  Guarantor,  against and  on  account of  the
obligations  and liabilities  of such  Guarantor to  such Creditor  under this
Guaranty,  irrespective of  whether or not  such Creditor shall  have made any
demand  hereunder  and although  said  obligations,  liabilities, deposits  or
claims, or any of them, shall be contingent or unmatured.

            18.  All  notices,  requests,   demands  or  other  communications
pursuant hereto shall be deemed to have been duly given or made when delivered
to the Person to which such notice, request, demand or  other communication is
required or  permitted to be given  or made under this  Guaranty, addressed to
such party  at (i)  in the case  of any  Creditor, as  provided in the  Credit
Agreement and  (ii) in  the case of  any Guarantor,  at its address  set forth
opposite its signature  below; or in any case at such  other address as any of
the Persons listed above may hereafter notify the others in writing.

            19.  If  claim is  ever made  upon any  Creditor for  repayment or
recovery  of any amount or amounts received in payment or on account of any of
the Guaranteed Obligations and any of the aforesaid payees repays  all or part
of said amount by reason of (a) any  judgment, decree or order of any court or
administrative body having jurisdiction over such payee or any of its property
or (b)  any settlement or compromise of any  such claim effected by such payee
with any such  claimant (including the Borrower), then and  in such event each
Guarantor  agrees  that  any  such  judgment,  decree,  order,  settlement  or
compromise  shall be binding upon  such Guarantor, notwithstanding any revoca-
tion  hereof or  of  any  other instrument  evidencing  any liability  of  the
Borrower,  and such  Guarantor shall  be and  remain liable  to  the aforesaid
payees hereunder for the amount so  repaid or recovered to the same  extent as
if such amount had never originally been received by any such payee.

            20.  (a)  THIS GUARANTY  AND THE  RIGHTS  AND OBLIGATIONS  OF  THE
CREDITORS AND OF  THE UNDERSIGNED HEREUNDER SHALL BE GOVERNED BY AND CONSTRUED
IN  ACCORDANCE WITH THE  LAW OF THE  STATE OF NEW  YORK.  Any  legal action or
proceeding  with respect to this Guaranty or  any other Credit Document may be
brought in  the courts of  the State of  New York or  of the United  States of
America for  the Southern District of New York, and, by execution and delivery
of  this Guaranty, each Guarantor hereby accepts  for itself and in respect of
its property, generally and unconditionally, the jurisdiction of the aforesaid
courts and hereby  irrevocably waives any right it  may have to object  to the
laying  of venue of any such action  or proceeding in the aforesaid courts and
hereby further  irrevocably waives and agrees  not to plead or  claim that any
such  action or proceeding  has been brought  in an inconvenient  forum.  Each
Guarantor hereby  irrevocably designates, appoints and  empowers the Borrower,
with offices on the date hereof at 901 Threadneedle, Suite 200, Houston, Texas
77079 as its designee, appointee and agent  to receive, accept and acknowledge
for any on  its behalf, and in respect of its property, service or any and all
legal process, summons, notices and documents  which may be served in any such
action or  proceeding.  If for  any reason such designee,  appointee and agent
shall cease to be available to act as such, each Guarantor agrees to designate
a new designee, appointee and agent in New York City on the terms  and for the
purposes of this provision satisfactory to the Agent for the  Banks under this
Guaranty.   Each  Guarantor further  irrevocably  consents to  the service  of
process  out  of any  of  the  aforementioned courts  in  any  such action  or
proceeding by the mailing of  copies thereof by registered or  certified mail,
postage  prepaid, to  each Guarantor  at its  address set  forth  opposite its
signature  below.   Nothing  herein  shall  affect the  right  of  any of  the
Creditors to serve process in any other manner permitted by law or to commence
legal proceedings  or otherwise  proceed against each  Guarantor in  any other
jurisdiction.

            (b)  Each Guarantor hereby irrevocably waives  any objection which
it may now  or hereafter have to the  laying of venue of any  of the aforesaid
actions  or proceedings arising out of or  in connection with this Guaranty or
any other  credit document  brought in  the courts referred  to in  clause (a)
above and hereby further irrevocably  waives and agrees not to plead  or claim
in any such court that such action or proceeding brought in any such court has
been brought in an inconvenient forum.

            21.  In the event  that all of  the capital stock  of one or  more
Guarantors is sold or  otherwise disposed of or liquidated  in compliance with
the requirements  of Section 8.02  of the  Credit Agreement (or  such sale  or
other  disposition has been approved in writing  by the Required Banks (or all
Banks if required by Section 12.12  of the Credit Agreement)) and the proceeds
of such  sale, disposition or  liquidation are applied in  accordance with the
provisions of the  Credit Agreement, to the extent  applicable, such Guarantor
shall be released from this Guaranty and this Guaranty shall, as to  each such
Guarantor or Guarantors, terminate,  and have no further  force or effect  (it
being understood and agreed that the sale of any Person that owns, directly or
indirectly, the capital stock of any Guarantor shall be deemed to be a sale of
such Guarantor for the purposes of this Section 21).

            22.  At  any time  a payment  in respect  of the  Guaranteed Obli-
gations  is made under  this Guaranty, the  right of contribution,  if any, of
each Guarantor against  any other Guarantor  required to  make any payment  to
such  Guarantor  pursuant  to  this  Section  22  (a "Contributor")  shall  be
determined as provided  in the immediately following sentence,  with the right
of contribution of each Guarantor  to be revised and restated as of  each date
on  which  a  payment  (a  "Relevant  Payment")  is  made  on  the  Guaranteed
Obligations under this Guaranty.  At any time that a Relevant Payment  is made
by  a Guarantor that results in the  aggregate payments made by such Guarantor
in respect  of the  Guaranteed Obligations  to and including  the date  of the
Relevant  Payment  exceeding  such  Guarantor's  Contribution  Percentage  (as
hereinafter  defined) of  the aggregate  payments  made by  all Guarantors  in
respect  of the  Guaranteed  Obligations  to and  including  the  date of  the
Relevant Payment  (such  excess, the  "Aggregate  Excess Amount"),  each  such
Guarantor shall have a right of contribution against each  Contributor who has
made payments in respect  of the Guaranteed  Obligations to and including  the
date   of  the  Relevant  Payment  in  an  aggregate  amount  less  than  such
Contributor's Contribution  Percentage of the  aggregate payments made  to and
including the date of the Relevant Payment by all Guarantors in respect of the
Guaranteed Obligations  (the aggregate amount of such  deficit, the "Aggregate
Deficit Amount") in an amount equal  to (x) a fraction the numerator  of which
is the  Aggregate Excess Amount of such Guarantor and the denominator of which
is  the Aggregate  Excess  Amount  of all  Guarantors  multiplied by  (y)  the
Aggregate  Deficit  Amount  of  such  Contributor.   A  Guarantor's  right  of
contribution, if any,  pursuant to the preceding sentences shall  arise at the
time of each computation, subject to adjustment to the time  of any subsequent
computation; provided,  that no Guarantor may take  any action to enforce such
right until  the Guaranteed Obligations have been paid in full, all Letters of
Credit have terminated  and the Total Commitment has been terminated, it being
expressly recognized  and agreed  by all parties  hereto that  any Guarantor's
right  of  contribution  arising  pursuant  to this  Section  22  against  any
Contributor shall be  expressly junior and  subordinate to such  Contributor's
obligations and liabilities  in respect of the Guaranteed  Obligations and any
other obligations owing under this  Guaranty.  As used in this  Agreement, (i)
each  Contributor's  "Contribution  Percentage"   shall  mean  the  percentage
obtained by dividing (x) the Adjusted Net Worth of such Contributor by (y) the
aggregate Adjusted Net Worth of all Guarantors; (ii)  the "Adjusted Net Worth"
of each  Guarantor  shall  mean the  greater  of (x)  the  Net Worth  of  such
Guarantor or (y) zero; and (iii) the "Net  Worth" of each Guarantor shall mean
the amount by  which the fair salable value of such  Guarantor's assets on the
Initial  Borrowing  Date  exceeds its  existing  debts  and other  liabilities
(including contingent liabilities, but without giving effect to any Guaranteed
Obligations arising under this Guaranty), in each case after  giving effect to
all transactions occurring on the Initial Borrowing Date.

            23.  Each  Guarantor recognizes  and agrees  that, except  for any
right of  contribution arising  pursuant to Section  22, until  the Guaranteed
Obligations have  been paid in full,  each Guarantor who makes  any payment in
respect of  the Guaranteed Obligations shall have  no right of contribution or
subrogation against any other  Guarantor in respect of such  payment, any such
right  of contribution  or subrogation  arising under  law or  otherwise being
expressly waived by all Guarantors  until the Guaranteed Obligations have been
paid in full.

            24.  Each Guarantor recognizes and acknowledges that the rights to
contribution arising hereunder shall constitute an asset in favor of the party
entitled to such  contribution.   In this connection,  each Guarantor has  the
right  to waive  its contribution  right against  any other  Guarantor to  the
extent  that after giving  effect to such  waiver such  Guarantor would remain
solvent, in the determination of the Required Banks.

            25.  This  Guaranty may be executed  in any number of counterparts
and by  the different parties hereto  on separate counterparts, each  of which
when so executed  and delivered shall be  an original, but all of  which shall
together  constitute one  and  the same  instrument.   A  set of  counterparts
executed by all the parties hereto shall be lodged with the Guarantors and the
Agent.

            26.  EACH GUARANTOR  HEREBY IRREVOCABLY  WAIVES  ALL RIGHTS  TO  A
TRIAL BY  JURY IN  ANY ACTION,  PROCEEDING OR COUNTERCLAIM  ARISING OUT  OF OR
RELATING  TO THIS  GUARANTY, THE  OTHER CREDIT  DOCUMENTS OR  THE TRANSACTIONS
CONTEMPLATED HEREBY OR THEREBY.

            27.  It  is  understood and  agreed  that  any  Subsidiary of  the
Borrower that is required to  execute a counterpart of this Guaranty  pursuant
to the  Credit Agreement shall  automatically become a Guarantor  hereunder by
executing a counterpart hereof and delivering the same to the Agent.

            28.  All  payments made  by any  Guarantor hereunder will  be made
without setoff, counterclaim or other defense.


                              *     *     *     *


            IN WITNESS WHEREOF, each Guarantor  has caused this Guaranty to be
executed and delivered as of the date first above written.


Address for each Guarantor

c/o Reading & Bates Drilling Co.        READING & BATES EXPLORATION CO.
901 Threadneedle
Suite 200
Houston, Texas  77079                   By_______________________________
Attention:  General Counsel               Title:
Tel: (713) 496-5000
Fax: (713) 496-0285
                                        READING & BATES (A) PTY. LTD.


                                        By_______________________________
                                          Title:


                                        READING AND BATES BORNEO DRILLING 
                                         CO., LTD.


                                        By______________________________
                                          Title:




Accepted and Agreed to:

CHRISTIANIA BANK OG KREDITKASSE,
  NEW YORK BRANCH, 
  as Agent


By____________________________
  Title:


By____________________________
  Title:



                                                            Exhibit 10.88     


                           FIRST PREFERRED MORTGAGE

                             Dated April 30, 1996

                        READING & BATES EXPLORATION CO.

                                - in favor of -

                     WILMINGTON TRUST COMPANY, not in its
                   individual capacity but solely as Trustee

                                 D.R. STEWART

==============================================================================
                                     INDEX

CLAUSE                  SUBJECT MATTER                                    PAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . . . 9 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  10 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  13 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  17 
      9     ENFORCEABILITY AND TRUSTEE'S POWERS . . . . . . . . . . . . .  18 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  19 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  20 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  21 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  21 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  23 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  24 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  24 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  24 

      ACKNOWLEDGEMENT OF MORTGAGE

      EXHIBIT 1 FORM OF CREDIT AGREEMENT

 EXHIBIT 2 FORM OF SUBSIDIARY GUARANTY

==============================================================================

THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 30th day  of
April, 1996

BY

(1)    READING &  BATES EXPLORATION CO.,  an Oklahoma  corporation having  its
       principal offices at 901  Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"),

IN FAVOR OF

(2)    WILMINGTON   TRUST  COMPANY,  a  Delaware  banking  corporation  having
       offices at Rodney Square  North, 1100 North Market Street,  Wilmington,
       Delaware  19890-0001, not  in  its individual  capacity  but solely  as
       indenture  trustee  for  the  Banks  (as  hereinafter  defined)  and as
       mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is the sole owner of the whole of  the offshore drilling unit
       D.R. STEWART  documented under the laws  and flag of the  United States
       of America with Official  Number 626904 of 6,494 gross registered  tons
       and 5,834 net registered tons (the "Rig").

(B)    By a  Credit Agreement dated as  of April 30,  1996 (as in  effect from
       time  to   time,  the  "Credit   Agreement")  among  Reading  &   Bates
       Corporation,  a  Delaware corporation  ("Holdings"),  Reading  &  Bates
       Drilling  Co., an  Oklahoma  corporation  (the "Borrower"),  the  Banks
       party  thereto, Credit  Lyonnais,  New York  Branch,  as co-agent,  and
       Christiania  Bank  og  Kreditkasse, New  York  Branch,  as  agent  (the
       "Agent") (the  form of which Credit  Agreement together with  Exhibit B
       thereto but without  the remaining  attachments is  attached hereto  as
       Exhibit 1), it was  agreed among other things that the Banks would make
       available  to the  Borrower  upon  the  terms  and  conditions  therein
       described a reducing  revolving credit facility (the "Facility")  in an
       aggregate  amount  at  any  time  outstanding of  One  Hundred  Million
       United States  Dollars (US$100,000,000),  providing for  the  making of
       Loans and the issuance of,  and participation in, Letters of Credit  as
       contemplated therein.

(C)    The  obligations of  the  Borrower with  respect  to the  Facility  are
       evidenced by  the  Credit Agreement  and  the other  Credit  Documents,
       including the promissory notes of the Borrower  payable to the order of
       the respective  Banks (each  a "Note"  and, collectively, the  "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed  and   delivered  a   Subsidiary  Guaranty  (the   "Subsidiary
       Guaranty"),  the form  of which Subsidiary  Guaranty is attached hereto
       as Exhibit 2,  in favor  of the Agent  guaranteeing the performance  by
       the Borrower  of its  obligations under  the Credit  Agreement and  the
       other Credit Documents.

(E)    This Mortgage is  made for  the benefit of  the Trustee  to secure  the
       guaranty  by the Owner of (i)  the full and prompt  payment when due of
       (x) the  principal of  interest on  the Notes  issued, and  Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect  to the Letters of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of  the Borrower  to  the Secured  Creditors  (as hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit  Agreement and the other Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by the  Borrower with  all  of the  terms,
       conditions and agreements  contained in  the Credit  Agreement and  the
       other Credit  Documents including,  without limitation, this  Mortgage;
       (ii) any and all sums advanced by the Trustee in  order to preserve the
       Collateral (as hereinafter  defined) or preserve its  security interest
       in  the  Collateral;  (iii) in  the  event of  any  proceeding  for the
       collection   or  enforcement  of   any  indebtedness,  obligations,  or
       liabilities  of the Borrower referred to  in clause (i) above, after an
       Event of Default shall have occurred and  be continuing, the reasonable
       expenses of  the Trustee of re-taking,  holding, preparing for  sale or
       lease,  selling   or  otherwise  disposing  of   or  realizing  on  the
       Collateral, or of any exercise by the  Trustee of its rights hereunder,
       together with reasonable attorneys' fees of counsel  to the Trustee and
       court costs; and  (iv) all amounts paid  by any Indemnitee as  to which
       such  Indemnitee has the right to reimbursement under Clause 13 of this
       Mortgage  (all   such  obligations,  liabilities,   sums  and  expenses
       referred  to  in  clauses (i)  through  (iv)  above  being collectively
       referred to as the "Obligations").  It  is acknowledged and agreed that
       the  "Obligations"  shall include  extensions  of credit  of  the types
       described above,  whether outstanding on the  date of this  Mortgage or
       extended from time to time after the date of this Mortgage. 

(F)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of the  Banks agreeing to make the Facility  available to
       the  Borrower  and  as  a  condition thereto  and  for  other  good and
       valuable consideration provided  by the Banks (the sufficiency of which
       the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In  this Mortgage unless the  context otherwise requires, the following
       expressions shall have the following meanings:-

       "Agent" shall have  the same meaning for such term  as set forth in the
       Credit Agreement;

       "Bank"  means any lender  listed from time  to time  on Annex 1  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral Assignment  of Insurance"  means the  Collateral Assignment
       of Insurance in respect  of the Rig executed  or to be executed by  the
       Owner in favor of the Agent;

       "Credit Agreement"  means the Credit Agreement,  dated as of  April 30,
       1996,  among Holdings,  the  Borrower, the  Banks, Credit  Lyonnais New
       York Branch, as co-agent,  and the Agent  first referred to in  Recital
       (B) hereto;

       "Credit Documents"  shall have the meaning  for such term as  set forth
       in the Credit Agreement;

       "Credit Facility Period"  shall mean the period commencing on  the date
       hereof and  ending on the date  the Total Commitments  have terminated,
       no Letters  of Credit remain outstanding  and the Loans and  the Unpaid
       Drawings together  with interest, fees  and all  other obligations  are
       paid in full;

       "Credit Party"  shall have the same meaning for  such term as set forth
       in the Credit Agreement;

       "Default  Rate"  shall  mean   the  rate  of  interest  calculated   in
       accordance with Section 1.07(b) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal reports  prepared  by  Holdings  or any  of  its  Subsidiaries
       solely in  the ordinary  course of  such Person's business  and not  in
       response  to  any  third  party  action or  request  of  any  kind)  or
       proceedings relating in any way to any Environmental Law or  any permit
       issued,  or  any  approval  given,  under any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable Environmental  Law, and  (b)  any and  all
       Claims   by   any    third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release  of Environmentally
       Sensitive  Material   from  the  Rig,  (ii)   any  incident   in  which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and  which involves collision  between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which Environmentally  Sensitive Material is released from  a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and, in  each  such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing and  the  like, into  or upon  any  land or  water or  air,  or
       otherwise entering into the environment);

       "Environmental   Laws"   means  all   applicable   laws,   regulations,
       conventions   and  agreements  whatsoever   relating  to  pollution  or
       protection of the  environment (including, without limitation,  the Oil
       Pollution Act  of 1990 (33  U.S.C.  2701  et seq.),  the Comprehensive
       Environmental Response,  Compensation, and  Liability Act  of 1980  (42
       U.S.C.   9601 et seq.), the Hazardous  Materials Transportation Act (49
       U.S.C.    1801 et seq.), the Resource  Conservation and Recovery Act of
       1976  (42 U.S.C.   6901 et  seq.), the Clean Air Act  (42 U.S.C.  7401
       et seq.), the Federal Water Pollution Control Act (33 U.S.C.  1251  et
       seq.) and the Toxic  Substances Control Act (15 U.S.C.   2601 et seq.)
       (all  of the  foregoing as  amended), and  any comparable  laws of  the
       individual  States of the  United States of America  or any other state
       or nation);

       "Fees" shall have  the same meaning for such  term as set forth  in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials,  asbestos in  any form that  is or could  become
       friable,  urea  formaldehyde  foam  insulation, transformers  or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or included  in the definition  of "hazardous
       substances,"  "hazardous  waste,"  "hazardous   materials,"  "extremely
       hazardous  waste," "restricted  hazardous  waste," "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar  import, under any  applicable Environmental  Law; and  (c) any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression  includes  all  entries  of the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to time  taken  out  or
       entered into  in respect of the Rig or  otherwise by the Owner (whether
       in the sole  name of the Owner or in  the joint names of the  Owner and
       the Agent)  and all  benefits thereof  (including claims of  whatsoever
       nature and return of premiums);

       "Interest  Period" shall have  the same  meaning for  such term  as set
       forth in Section 1.08 of the Credit Agreement;

       "Letter  of Credit" shall  have the same meaning  for such  term as set
       forth in Section 2.01 of the Credit Agreement;

       "Loan(s)"  shall have the  same meaning for such  term as  set forth in
       the Credit Agreement;

       "Major  Casualty" means any casualty to  the Rig in respect whereof the
       claim  or the  aggregate of  the claims  against  all insurers,  before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note"  means each  promissory  note of  the  Borrower referred  to  in
       Recital (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil  Pollution Act 1990"  means the Oil Pollution  Act 1990 (33 U.S.C.
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       offshore  drilling rig  JACK  BATES owned  by  the Borrower  documented
       under  the  laws and  flag of  the United  States with  Official Number
       906283  of 19,928  gross registered  tons and    14,948 net  registered
       tons; (ii) the  offshore drilling  rig W. D.  KENT owned  by the  Owner
       documented under the laws and flag  of the United States with  Official
       Number 583169 of  5,383 gross registered tons and 4,185  net registered
       tons; (iii) the  offshore drilling rig CHARLEY GRAVES owned  by Reading
       and Bates Borneo Drilling Co., Ltd. documented under the  laws and flag
       of  the Republic  of Panama  with Patente  Number  6618-76-CH of  5,829
       gross registered tons and 1,748 net registered  tons; (iv) the offshore
       drilling rig  RON  TAPPMEYER owned  by  Reading &  Bates  (A) Pty  Ltd.
       documented  under  the  laws  and  flag  of  Australia  with   Official
       Number 855213 of 11,455 gross  registered tons and 3436  net registered
       tons;  and (v)  the  offshore drilling  rig J.W.  McLEAN  owned by  the
       Borrower  documented  under the  laws  and  flag of  the  Bahamas  with
       Official  Number 715954  of 9199.01 gross  registered tons  and 7267.22
       net registered tons;

       "Permitted  Liens" means:  (1)  liens incident  to expenses  of current
       operations, other than  for master's and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty  (30) days (or being contested in good faith, provided
       such liens are  not in excess  of U.S.$5,000,000.00, and  if in  excess
       thereof, then the Owner  shall, upon the written request of  the Agent,
       provide a bond or other security satisfactory to the  Agent); (2) liens
       for master's and  crew's wages not yet  due and payable; (3)  liens for
       taxes, assessments,  governmental charges, fines  and penalties not  at
       the time delinquent  (unless being  contested in  good faith,  provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then the Owner shall,  upon the written request of the  Agent,
       provide a bond or other security satisfactory to the Agent);  (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for  claims covered  by valid policies  of insurance meeting  the
       requirements of Clause 6  hereof (except that no  lien shall be  deemed
       not covered by insurance  to the extent insurance in force  would cover
       the  amount secured  by  the lien  but  for any  applicable  deductible
       amount  approved by  the  Agent); (6)  liens  arising pursuant  to  any
       judgment  or to  an order  of attachment,  distraint  or similar  legal
       process arising in  connection with legal proceedings, but only  if and
       so long as the  execution or other enforcement thereof is  not unstayed
       for more than  30 consecutive  days; (7) any  lien for  the payment  or
       discharge of which provisions satisfactory to the  Agent have been made
       as evidenced by the Agent's written consent to  such lien; (8) any lien
       in favor  of the Banks;  and provided  that Permitted  Liens shall  not
       include any liens described in subclauses (1)  through (7) above unless
       they:  (i)  are subordinate  to  the  lien  of this  Mortgage  or  (ii)
       constitute a  maritime lien  which would  in any  event be entitled  as
       such to  priority over  the Mortgage under  the United States  shipping
       laws or  other applicable laws relating  to the Rig's  trading pattern.
       Nothing  herein shall  be deemed a  waiver of  the preferred  status of
       this Mortgage; 

       "Protection  and indemnity  risks"  means the  usual  risks covered  by
       protection   and   indemnity  associations   of   international  repute
       including the proportion  not recoverable  in case  of collision  under
       the ordinary  running-down clause (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the Credit Facility Period by  reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means  the vessel  described in Recital  (A) hereto and  includes
       any  share  or interest  therein  and  her  engines, machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and  appurtenances whether  on board  or ashore and  whether
       now owned  or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors"  shall mean the Trustee,  the Banks, the  Letter of
       Credit  Issuer  and  the  Agent under  and  as  defined  in  the Credit
       Agreement;

       "Security Documents" shall  have the same meaning for  such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or  other security interest or arrangement of  any kind
       whatsoever;

       "Subsidiary Guaranty"  means the agreement dated  as of April  23, 1996
       made  by the  Owner  in favor  of the  Agent  as first  referred to  in
       Recital (D) hereto;

       "Taxes" shall have  the same meaning for such term  as set forth in the
       Credit Agreement;

       "Total  Commitment" shall  have the same  meaning for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive,  arranged, agreed, or
       compromised Total Loss  of the Rig;  (b) the requisition  for title  or
       other compulsory  acquisition or forfeiture  of the Rig otherwise  than
       by  requisition for  hire; (c) the  capture, seizure, arrest, detention
       or confiscation of  the Rig by any  government or by persons  acting or
       purporting to  act  on behalf  of  any  government unless  the  Rig  be
       released from such capture,  seizure, arrest or detention within ninety
       (90) days after the occurrence thereof;

       "United States  Dollars" and  "US$" means  the lawful  currency of  the
       United States of America;

       "Unpaid  Drawing" shall  have the  same meaning  for such  term  as set
       forth in the Credit Agreement;

       "War Risks" includes the risk of mines and all risks excluded from  the
       standard form  of English  marine policy  by  the free  of capture  and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:-

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect the  construction of this  Mortgage and, unless  otherwise
             specified,  all  references to  Clauses  are to  clauses  of this
             Mortgage;

       (b)   unless  the   context  otherwise  requires,  words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to assets  include  property,  rights and  assets  of
             every description;

       (e)   references to any  document are to be construed as  references to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:-

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to  any Security Interest (except for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has not  sold or  transferred, or  agreed  to sell  or
             transfer, title to the Rig or any share therein;

       (c)   the Owner  is a corporation  duly organized and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the Owner has full  power and authority (i)  to register the  Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig;

       (f)   the  Owner has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner  enforceable against the Owner in accordance with its terms
             (except  to   the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency,  moratorium or other laws  of general
             application  relating  to   or  affecting   the  enforcement   of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's  National Vessel  Documentation Center  in Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect  (i) any law or regulation  of any governmental or
             official  authority or  body,  or (ii)  any  of the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is  a party or which  is binding upon the  Owner or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection  with   the  entry  into,  performance,  validity  and
             enforceability    of   this   Mortgage   and   the   transactions
             contemplated hereby  and thereby  have been  obtained and  are in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage, it  is not  necessary for the  legality, validity,
             enforceability  or  admissibility in  evidence  of this  Mortgage
             that it or  any document relating thereto  be registered,  filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or that any stamp, registration or similar  taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws relating to the Rig, its operation and management;

       (k)   the  Owner has  obtained all  Environmental  Approvals and  is in
             compliance with all requests thereof;

       (l)   no Environmental  Claim has  been made or  threatened against the
             Owner, the Approved  Manager or otherwise in  connection with the
             Rig; and

       (m)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be expected  to result,  in an Environmental  Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall  survive the execution of this Mortgage and shall be deemed to be
       repeated at  the time of the making of each Loan and at the time of the
       issuance  of  each Letter  of  Credit, with  respect to  the  facts and
       circumstances existing  at each  such time,  as  if made  at each  such
       time.

3.     MORTGAGE

3.01   In  order to secure the Obligations the Owner has granted, conveyed and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the Trustee, its successors and  assigns, the whole of the Rig  TO HAVE
       AND  TO HOLD  the same  unto the  Trustee, its  successors and  assigns
       forever upon  the terms  herein set  forth for  the enforcement of  the
       Obligations.

       Provided only and  the condition of these presents is  such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been performed  in full  as  and when  the same  shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in the  Subsidiary Guaranty and this  Mortgage
       expressed or  implied to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then these  presents and  the rights  hereunder shall  cease, determine
       and be void otherwise  to be and remain  in full force and  effect and,
       in such event, the  Indenture Trustee agrees  to execute and record  at
       the expense  of  the  Owner,  all  such  documents  as  the  Owner  may
       reasonably require to discharge this Mortgage.

       Notwithstanding  anything to  the contrary  herein  it is  not intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that if  any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig  and none of the Secured  Creditors shall
       be under  any obligation of any  kind whatsoever in  respect thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors   for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or other  moneys as  are stated  in this  Mortgage to  be
             payable by  the Owner to  or recoverable  from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other  moneys referred to
             in Clause 4.01(a)  from the date on  which demand is made  by any
             Secured  Creditor  for  payment  by  the  Owner  of  the relevant
             expense,  claim,  liability, loss,  cost,  duty,  fee, charge  or
             other money incurred  by a Secured  Creditor for which  the Owner
             is  responsible (both before and  after any relevant judgment) at
             the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing  to  a  Secured  Creditor  under  this   Mortgage  and  the
             Subsidiary  Guaranty at  the  times and  in the  manner specified
             herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:-

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be prejudiced  or affected by any  of the other  Security
             Documents;

       (c)   the Trustee shall not have  to wait for the Agent to  enforce any
             of  the other  Security Documents  before enforcing  the security
             created by this Mortgage;

       (d)   no  delay or  omission on the  part of the  Trustee in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or remedy  or be construed  as a waiver thereof  nor
             shall any single  or partial exercise of any such right, power or
             remedy preclude any further  exercise thereof or the  exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given in  writing and then only for  the purpose and
             upon the terms for which it is given.

5.02   Any settlement  or discharge  under this  Mortgage between  the Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being  avoided or set-aside or ordered to be refunded or reduced
       by  virtue  of  any  provision or  enactment  relating  to  bankruptcy,
       insolvency, administration  or liquidation for the  time being in force
       and, if such condition is not satisfied, the  Trustee shall be entitled
       to recover from the Owner  on demand the value of such security  or the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to  impair, affect or discharge  such rights and  security, in whole or
       in  part, including without limitation, and whether  or not known to or
       discoverable by the Secured Creditors or any other person:-

       (a)   any time or  waiver granted  to the Credit  Parties or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of the  Credit  Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents  (other than this Mortgage)  or any  other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or   frustration   of  any
             obligations  of any  of the  Credit Parties  or any  other person
             under  the Credit Agreement, any of  the other Security Documents
             (other than this Mortgage) or any other document or security.

6.     INSURANCE

6.01   The Owner  covenants with  the Trustee  throughout the Credit  Facility
       Period that:-

       (a)   The Owner  shall, at its  own expense,  when and  so long as  any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured,  or cause the Rig to be  insured, in lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and  indemnity  risks, pollution  liability,  and war
             risks), in such  form (including without limitation, the  form of
             the  loss payable  clause and the  designation of named assureds)
             and  with such  first  class insurance  companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably satisfactory to the Agent.   With respect to hull  and
             machinery/increased  value  insurance,  including  war  risk, the
             Owner  shall insure the  Rig and keep  her insured,  or cause the
             Rig  to be  insured, for  an amount  which is  at least  the full
             commercial value of the Rig, and  when such amount is  aggregated
             with  the amount of  such insurance coverage  on the  Other Rigs,
             such  aggregate  amount  shall be  at  least  110%  of  the Total
             Commitment.   The Rig shall in no  event be insured for an amount
             less  than the agreed  valuation as set  forth in  the applicable
             marine and war risk  policies.  Such insurance shall cover marine
             and war risk perils,  on hull and machinery, with deductibles not
             in  excess of US$500,000  (such deductibles not  to apply  in the
             case of Total Loss  of the Rig), and  shall be maintained in  the
             broadest   forms  available   in   the   American,  British   and
             Scandinavian   insurance  markets   or   in  such   other   major
             international  markets reasonably  acceptable to the  Agent.  The
             Owner shall maintain,  or cause to be maintained,  protection and
             indemnity or equivalent  insurance, including war risk protection
             and indemnity coverage and coverage against pollution  liability,
             in an amount  not less than  US$100,000,000 (or, with  respect to
             pollution  liability  coverage, such  greater  amount  as may  be
             required from  time to  time by the  Oil Pollution  Act 1990,  or
             other Environmental Laws), as  and when applicable to the Rig and
             its operations,  through underwriters or  associations acceptable
             to the Agent.  In addition, the Owner shall,  at its own expense,
             furnish  to  the  Agent  a  mortgagee's  single  interest  policy
             providing coverage  which, when  aggregated with the  mortgagee's
             interest  insurance  furnished to  the  Agent in  respect  of the
             Other  Rigs, shall be in an amount  equal to at least 110% of the
             aggregate  amount of  the Total  Commitment (or  in lieu  of such
             mortgagee's  interest insurance  Owner shall  cause the  hull and
             machinery/increased  value  insurance to  be  endorsed  to afford
             breach of warranty coverage for  the benefit of the Agent).  Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies for the benefit of the Agent shall be  maintained in the
             broadest   form   available  in   the   American,   British   and
             Scandinavian  markets  or   other  major  international   markets
             acceptable  to the  Agent through underwriters  acceptable to the
             Agent.   The Rig shall  not operate  in or proceed  into any area
             then excluded by trading  warranties under its marine or war risk
             policies (including  protection and indemnity)  without obtaining
             any  necessary  additional  coverage,  satisfactory  in form  and
             substance,  and  evidence of  which  shall be  furnished,  to the
             Agent.

       (b)   The  policy  or   policies  of  insurance  shall   be  issued  by
             responsible  underwriters  reasonably  acceptable  to  the Agent,
             shall  contain  conditions,  terms,   stipulations  and  insuring
             covenants satisfactory to  the Agent, and  shall be kept  in full
             force and effect by  the Owner so long as any  Obligations remain
             outstanding.    All  such  policies, binders  and  other  interim
             insurance contracts shall be executed and  issued in the name  of
             the Owner and shall,  to the extent required herein, provide that
             loss be  payable to the Agent  for distribution by  it to itself,
             the Banks and the Owner  as their interests may appear, and shall
             provide for at least  ten days' prior notice  to be given to  the
             Agent  by  the  underwriters  or  association  in  the  event  of
             cancellation or the  failure of the  Owner to pay any  premium or
             call  which  would  suspend  coverage  under  the policy  or  the
             payment  of a claim thereunder.  The  Agent and the Trustee shall
             be named  as  co-assureds  on all  such  policies  and  insurance
             contracts, but without liability  of the Agent or the Trustee for
             premiums  or  calls.    Certified copies  of  all  such policies,
             binders and other interim insurance contracts  shall be deposited
             with  the Agent.    Originals shall  also  be  provided upon  the
             request of  the Agent.   The  Owner  shall furnish  to the  Agent
             annually a detailed report signed by  a firm of marine  insurance
             brokers satisfactory to the Agent as  to the insurance maintained
             in  respect of the Rig,  as to  their opinion as  to the adequacy
             thereof and as to compliance with  the provisions of this  Clause
             6.01.

             Unless  otherwise  required  by  the  Agent  by   notice  to  the
             underwriters, although the following insurance is  payable to the
             Agent,  (i) any loss under any  insurance on the Rig with respect
             to  protection and indemnity  risks may be  paid directly  to the
             Owner to reimburse  it for any  loss, damage or  expense incurred
             by it  and covered by such insurance or to the person to whom any
             liability covered by such  insurance has  been incurred and  (ii)
             in  the case of any loss (other  than a loss covered by (i) above
             or by the next  following paragraph of this Clause 6.01(b)) under
             any  insurance with respect  to the Rig  involving any  damage to
             the Rig, the underwriters  may pay direct for the repair, salvage
             or other  charges involved  or,  if the  Owner  shall have  first
             fully repaired  the damage or  paid all of  the salvage or  other
             charges, may pay the  Owner as reimbursement therefor;  provided,
             however, that  if such  damage involves a  before deductible loss
             in excess of  US$1,000,000, the underwriters shall  not make such
             payment  without first  obtaining the written  consent thereto of
             the  Agent (which  consent shall  not be  unreasonably withheld).
             Any  loss covered  by this paragraph  which is paid  to the Agent
             but  which   might  have  been  paid,   in  accordance  with  the
             provisions  of this paragraph, directly  to the  Owner or others,
             shall be paid by the Agent  to, or as directed by, the  Owner and
             all  other  payments  to the  Agent  of  losses  covered  by this
             paragraph  shall  be  applied  by the  Agent  in  accordance with
             Clause 10.01.

             In the  event  of an  actual  or  constructive Total  Loss  or  a
             compromised constructive Total Loss or requisition  of title, all
             insurance  payments therefor  shall be  paid to  the Agent.   The
             Owner shall not declare or agree  with the underwriters that  the
             Rig  is  a  constructive  or  compromised,   agreed  or  arranged
             constructive Total Loss without the prior  written consent of the
             Agent.

       (c)   In the event of an  actual or constructive Total Loss of the Rig,
             the Agent shall retain  out of the insurance payments received on
             account  of such  loss any  sum or sums  that shall  be or become
             owing  to  the Secured  Creditors under  the  Security Documents,
             whether or not  the same be then  due and payable,  together with
             accrued  interest  and  the  cost,  if  any,  of  collecting  the
             insurance, and pay the balance as provided in Clause 10.

       (d)   The  Owner shall comply with and satisfy all of the provisions of
             any applicable  law, regulation, proclamation or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will  maintain, or cause  to be maintained, all  certificates
             or other evidence of financial responsibility as may  be required
             by any such  law, regulation, proclamation or  order with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The Owner shall renew all insurances as they expire  and so as to
             insure that there is  no gap in coverage, keep the  Agent advised
             of the progress of such renewals,  and procure that the  insurers
             shall promptly confirm  in writing to the Agent  as and when each
             such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or  other  sums payable  in  respect  of  all such
             insurances and produce all relevant receipts  when so required by
             the Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner  shall not  employ the  Rig or  suffer  the Rig  to be
             employed  otherwise than  in  conformity with  the  terms of  the
             instruments   of  insurance   aforesaid  relative   to   the  Rig
             (including  any warranties, express  or implied, therein) without
             first obtaining the  consent of  the insurers to  such employment
             and complying  with  such requirements  as  to extra  premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The Owner  covenants  with  the  Trustee  that  throughout  the  Credit
       Facility Period the Owner will:-

       (a)   maintain its existence  as a  corporation in  good standing  duly
             organized under the laws of the State of Oklahoma;

       (b)   keep the  Rig documented in  its name  as a United  States vessel
             and to do  or allow to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the  Rig in a good and  efficient state of repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  Self-Elevating  Drilling Unit)  at  the  American Bureau  of
             Shipping  free of recommendations  and qualifications  and change
             of class, save those  notified to and approved in writing  by the
             Trustee  and so  as  to comply  with  all  laws, regulations  and
             requirements  (statutory   or  otherwise)   from  time   to  time
             applicable to vessels documented under the  laws and flag of  the
             United   States  and   applicable  to  vessels   trading  to  any
             jurisdiction to which the Rig may,  subject to the provisions  of
             this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or  lost parts or equipment  be effected in  such manner (both as
             regards workmanship and quality of materials) as to  not diminish
             the value  of the Rig and not to remove  any material part of, or
             item of equipment installed on,  the Rig unless the part or  item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is in the  same condition as  or better condition than  the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner  and  subject to  the  security  constituted  by  this
             Mortgage;

       (f)   submit  the Rig  to such periodical  or other  surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee and the Agent copies  of all survey reports
             issued in respect thereof;

       (g)   permit the representatives of the Agent  or independent surveyors
             representing  the Trustee  to  board the  Rig  at all  reasonable
             times and  upon reasonable  notice for the  purpose of inspecting
             her condition  or for  the  purpose of  satisfying themselves  in
             regard to proposed or executed repairs  and to afford all  proper
             facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in respect  of the  Rig and  all  other outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig  pursuant  to legal  process,  or  in the  event  of her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (i)   not  employ the  Rig  or allow  her employment  in  any trade  or
             business  which  is  unlawful  under  the  laws  of any  relevant
             jurisdiction  or in  carrying illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world  (whether war be declared or
             not) not employ the Rig or suffer her  employment in carrying any
             contraband  goods or  to  enter or  trade to  any  zone which  is
             declared  a  war zone  by  any  government or  by  the  war risks
             insurers of the  Rig unless there shall have been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time to  time require  regarding the  Rig, her  employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages and, upon the  request of the Trustee in writing, copies
             of all  charters  and  other  contracts  for  her  employment  or
             otherwise howsoever concerning her;

       (k)   notify both  the Trustee  and  the Agent  forthwith  by telex  or
             telecopy thereafter confirmed by letter of:-

             (i)  any  casualty to the Rig which is or is likely to be a Major
                  Casualty, and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss, and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by  any competent  authority
                     which is not immediately complied with, and

             (iv)    any  arrest of  the  Rig  or  the exercise  or  purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire, and

             (v)  any intended dry  docking of the Rig, as to  which the Owner
                  shall give the Trustee ten (10) days prior notice, provided,
                  that  in the event of any  emergency dry docking of the Rig,
                  the Owner shall immediately notify the Trustee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for  normal periods of  inactivity between contracts
                     for the Rig during which  periods the Rig remains manned)
                     and obtain the prior written consent of the Trustee;

       (l)   keep  proper books of account  in respect  of the Rig  and as and
             when  the Trustee  or the  Agent may  so reasonably  require make
             such books available for  inspection on behalf of the Trustee and
             furnish satisfactory evidence that  the wages and allotments  and
             the  insurance of the  master and crew  are being  regularly paid
             and that  all deductions  from  crew's wages  in  respect of  tax
             and/or  social security  liability are  being properly  accounted
             for  and that  the master  has no  claim for  disbursements other
             than those incurred by  him in the ordinary course of  trading on
             the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit  Agreement which apply  to the Rig  and the  Owner, and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person  for the purpose of work being done upon
             her in an amount  exceeding or likely to exceed Two  Million Five
             Hundred  Thousand United  States Dollars  (US$2,500,000) (or  the
             equivalent in any other currency) unless  such person shall first
             have  given to  the Trustee and  in terms reasonably satisfactory
             to  it a written undertaking not to  exercise any lien on the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established by  the  Ship Mortgage  Act and  any other  pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid  and enforceable first and  preferred lien  upon the
             Rig and  promptly to  furnish to  the Trustee from  time to  time
             such proof as the Trustee may  request for its satisfaction  with
             respect to the  Owner's compliance  with the  provisions of  this
             sub-clause;

       (p)   place,  and use  due diligence  to retain,  a properly  certified
             copy  of this Mortgage on board the Rig with her papers and cause
             such  certified copy of this Mortgage  to be exhibited to any and
             all persons having  business with the  Rig which might  give rise
             to any lien thereon other  than a lien for crew's  wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and  in the  master's cabin  of  the Rig  a  framed printed
             notice in  plain type in English of  such size that the paragraph
             of reading matter  shall cover  a space  not less  than 6  inches
             wide and 9 inches high reading as follows:-


                                       "NOTICE OF MORTGAGE

             This Rig is covered by a  First Preferred Mortgage to  WILMINGTON
             TRUST  COMPANY  not  in  its individual  capacity  but  solely as
             Trustee  for  the  Banks  defined  in  the  said  Mortgage  under
             authority  of  the  United States  Ship  Mortgage  Act,  1920, as
             amended, recodified  as 46  U.S.C.  31301 et.  seq.   Under  the
             terms of the  said Mortgage neither  the Owner nor  any charterer
             nor the master of  this Rig nor any  other person has any  right,
             power or authority to create, incur or permit to  be imposed upon
             this  Rig any  lien  whatsoever  other  than  for  crew's  wages,
             general average and salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)  any Environmental  Claim which could reasonably  be expected
                  to result in damages in  excess of US$200,000 being or  made
                  against the Owner, or otherwise in connection  with the Rig;
                  or

             (ii)    any  Environmental  Incident   occurring,  and  keep  the
                     Trustee advised, in writing on such  regular basis and in
                     such detail as the Trustee shall require, of  the Owner's
                     response  to such  Environmental  Claim or  Environmental
                     Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by  the  Credit Agreement)  without  the written  consent  of the
             Trustee having first  been obtained, and any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to be  a waiver of this  provision with respect  to any
             subsequent proposed  sale, mortgage or transfer.   Any such sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and  the lien it  creates.  The Owner  shall not charter
             the  Rig to, or permit the Rig  to serve under any contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or "specially  designated national"
             of a "designated  foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury Department,  31 C.F.R. Parts 500 and  515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity"  in  the Libyan
             Sanctions  Regulations of the  United States Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity  of the Government of  Iraq" or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be  codified at 31  C.F.R. Part 575,  as amended,  all within the
             meaning   of   said   Regulations   or    of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters  or enter any Cuban port for  any purpose or engage in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the   Iranian  Transactions
             Regulations, 31  C.F.R. Part 560, as  amended, the  Foreign Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or violation  would (i)  expose the  Trustee to  any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to law, shall  not abandon the  Rig in  a foreign port,
             shall not  engage in  any unlawful trade  or violate  any law  or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or capture,  and shall not  do, or suffer or  permit to  be done,
             anything which can or may injuriously affect the  registration or
             enrollment of the  Rig under the  laws of  the United States  and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at  any time and as  often as may  be necessary to  take any
       such action  as it  may in  the reasonable exercise  of its  discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created  by this  Mortgage and the  other Credit  Documents (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:-

       (a)   if  the Owner does not comply  with the provisions of Clause 6 or
             any  of  them the  Agent  shall be  entitled (but  not  bound) to
             effect  or to replace  and renew and  thereafter to  maintain the
             Insurances  in such manner as in its  discretion it may think fit
             and to  require that  all policies, contracts  and other  records
             relating   to   the  Insurances   (including   details   of   any
             correspondence  concerning   outstanding  claims)   be  forthwith
             delivered  to such  brokers  as the  Agent  may  nominate and  to
             collect, recover,  compromise and give a  good discharge  for all
             claims  then   outstanding  or   thereafter  arising  under   the
             Insurances or  any of  them and  to take  over  or institute  (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection therewith as the Agent in its absolute  discretion may
             think fit and to permit the  brokers through whom the  collection
             or recovery is effected to  charge the usual brokerage  therefor;
             and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but not bound) to arrange for the carrying out of  such
             repairs to and/or  surveys of the  Rig as  it deems expedient  or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or any  of them  the Trustee shall  be entitled (but  not
             bound)  to  pay  and  discharge  all  such   debts,  damages  and
             liabilities  and  all   such  tolls,  dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND TRUSTEE'S POWERS

9.01   Upon  the happening of any  of the  Events of Default  specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to the effect that an Event  of Default
       has occurred (and whether  prior to or after the  Required Banks having
       served on the Owner any  such notice as is referred to  in Section 9 of
       the Credit Agreement)  the security constituted by this  Mortgage shall
       become immediately  enforceable and  the Trustee shall  be entitled, as
       and when it may see  fit, to put into force and exercise  all or any of
       the powers possessed by it as mortgagee of the Rig or  otherwise and in
       particular:-

       (a)   to exercise  all  the  rights  and remedies  in  foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to take possession of the Rig whether actually  or constructively
             and/or otherwise to take control  of the Rig wherever the Rig may
             be  and cause the Owner or any  other person in possession of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without  legal process  and without liability  of the Trustee for
             any  losses or  damages  incurred thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and   correspondence  concerning   outstanding   claims)  be
             forthwith delivered to or to the order of the Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure  that  the Agent  collect, recover,  compromise  and give
             good discharge for any  and all moneys or claims for  moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection or recovery  is effected to charge the usual brokerage
             therefor;

       (e)   to take  over or institute  (if necessary using  the name of  the
             Owner)  or, to  the extent  lawful, procure  that the  Agent take
             over or  institute all  such proceedings in  connection with  the
             Rig,  the  Insurances, or  any  Requisition  Compensation as  the
             Trustee  in its absolute discretion  thinks fit and to discharge,
             compound,  release  or compromise  claims  against  the Owner  in
             respect  of the  Rig which  have given  or may  give rise  to any
             charge or lien on the Rig  or which are or may be  enforceable by
             proceedings against the Rig;

       (f)   to  sell the  Rig  or any  share  therein with  or  without prior
             notice  to the Owner  free from any claim  of or by  the Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some  or all of the purchase price be deferred) as the Trustee in
             its absolute discretion may determine with power  to postpone any
             such sale, without  being answerable  for any loss  occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to  purchase the  Rig at any  such public auction  and to set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for the purposes aforesaid  the Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting the Rig,  and the insurance, management,  maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in all  respects as if the Trustee were the  owner of the Rig and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses as  may  be  incurred  by  the Trustee  in  or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental to  the  exercise  by  it  of any  of  the  powers
             aforesaid.

9.02   The Trustee  shall not be obliged to make any  enquiry as to the nature
       or sufficiency of any payment received by it under  this Mortgage or to
       make any  claim, take  any action  or enforce any  rights and  benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors, nor their  agents, managers, officers,
       employees,  delegates  and advisers  shall be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection with  the  exercise or  purported  exercise of  any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall not by reason of  the taking possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or  be liable for any loss upon  realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon any  sale  of the  Rig or  any share  therein by  the Trustee  the
       purchaser shall  not be bound  to see or enquire  whether the  power of
       sale  of the Trustee has arisen in the manner provided in this Mortgage
       and the sale shall be deemed  to be within the power of the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge the purchaser who  shall not be concerned with the  manner of
       application  of  the proceeds  of  sale  or be  in  any way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  All moneys received by  the Trustee (or any other Secured  Creditor, as
       the case  may be) in respect of sale of the Rig or any part thereof, in
       respect of recovery under the Insurances  or in respect of  Requisition
       Compensation, shall be applied in the following manner:-

       (i)   first, to  the payment of  all amounts owing  the Trustee of  the
             type described in clauses (ii) and (iii) of Recital E;

       (ii)  second,  to  the  extent  moneys  remain  after  the  application
             pursuant  to the  preceding clause  (i), an  amount equal  to the
             outstanding  Obligations shall  be paid to  the Secured Creditors
             as  provided  in  Clause  10.01(c), with  each  Secured  Creditor
             receiving  an amount equal to such  Obligations held by it or, if
             the   proceeds  are   insufficient  to  pay   in  full  all  such
             Obligations, its Pro Rata  Share (as defined below) of the amount
             remaining to be distributed; and

       (iii) third,  to  the  extent  moneys  remain   after  the  application
             pursuant to  the preceding  clauses (i)  and (ii),  and following
             the  termination of this  Mortgage pursuant  to Clause  3.01, any
             surplus  then remaining  shall  be paid  to  the Owner,  subject,
             however,  to the rights of  the holder of  any then existing Lien
             of which the Trustee has actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid  amount of such Obligations owing to  or held by such
             Secured  Creditor  and  the  denominator  of  which is  the  then
             outstanding  amount of  all such  Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee shall  be entitled  to request  each Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed  to it  and shall  be  entitled to  reply  upon the  amounts
             stated therein in making such distribution.

       (c)   All payments required to  be made to Secured Creditors  hereunder
             shall  be made to  the Agent under  the Credit  Agreement for the
             account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i)  the Agent under  the Credit Agreement  and (ii)  the Secured
             Creditors for a determination (which  the Agent and each  Secured
             Creditor, by  their acceptance of  the benefits of this  Mortgage
             shall  be obligated to  provide upon request  of the  Trustee) of
             the  outstanding  Obligations  owed  to  the  Secured  Creditors.
             Unless it  has  actual knowledge  (including  by way  of  written
             notice from a Secured  Creditor) to the contrary, the Agent under
             the Credit Agreement, in  furnishing information pursuant to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be  entitled  to  assume  that  (x)  no  obligations  other  than
             principal, interest and  regularly accruing fees are owing to any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:-

       (a)   perfecting  or protecting the security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving  or protecting any  of the rights  of the  Trustee and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring  that the security constituted by  this Mortgage and the
             covenants and obligations of the Owner  under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner, by  way of security and  in order more  fully to secure  the
       performance  of  the  Obligations,  hereby   irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:-

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering  in its name all  documents which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage  shall have become  immediately enforceable  pursuant to
             Clause 9.01; and

       (b)   executing,   signing,   perfecting,  doing   and   (if  required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of such  power as is referred to in Clause  12.01(a) by or
       on behalf  of the Trustee  shall not  put any  person dealing with  the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor  shall such  person be  in any  way affected  by notice
       that this  Mortgage has not become enforceable and, in relation to both
       Clauses 12.01(a)  and  12.01(b), the  exercise by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:-

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on the  release of  the Rig  from  the security  created by  this
             Mortgage,

       and each of  the Secured Creditors and each such  agent or attorney may
       retain and pay all  sums in respect of  the same out of  money received
       under  the powers  conferred  by  this  Mortgage.    All  such  amounts
       recoverable by such Secured Creditors or  such agent or attorney  shall
       be recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees,  attorneys and  agents from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of  them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury  (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental   Claim  brought  or
       threatened,  or  settlement  reached;  or (d)  any  violation  of laws,
       orders, regulations,  requirements or demands of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable law  or regulation, and whether pursuant to  a
       judgment being made or  registered against the Owner or the liquidation
       of  the Owner  or  for  any  other  reason, any  payment  under  or  in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than the currency  in which such payment is due  under or in connection
       with  this Mortgage (the  "contractual currency"),  then to  the extent
       that the amount of such payment actually received by the Trustee,  when
       converted into the contractual  currency at the rate of exchange, falls
       short of the amount due under or in connection  with this Mortgage, the
       Owner, as a  separate and  independent obligation, shall  indemnify and
       hold harmless the  Trustee against the amount  of such shortfall.   For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which the Trustee is able on  the date of such payment (or, if it is
       not practicable  for the  Trustee to purchase  the contractual currency
       with  the payment currency on the date  of such payment, at the rate of
       exchange as  soon afterwards as  is practicable for  the Trustee to  do
       so) to purchase the  contractual currency with the payment currency and
       shall take into  account any premium  and other costs of  exchange with
       respect thereto.

14.    EXPENSES

14.01  The Owner shall  pay to any Secured Creditor on  demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:-

       (a)   the  negotiation,  preparation  and   execution  of  the   Credit
             Agreement, the Subsidiary Guaranty  and the Credit Documents  (or
             any of them); and/or

       (b)   the  preserving  or enforcing  of, or  attempting to  preserve or
             enforce, any  of  its  rights  under the  Credit  Agreement,  the
             Subsidiary Guaranty or the Credit Documents (or any of them).

14.02  The Owner shall pay to  the Trustee and the Agent on demand  all costs,
       fees  and expenses  (including,  but not  limited  to,  legal fees  and
       expenses)  and  Taxes  thereon  incurred  by  any  Secured Creditor  in
       connection with:-

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the  Credit Agreement,  the Subsidiary  Guaranty or  the
             Credit  Documents  (or  any  of  them)  requested  by  the Owner,
             necessary or advisable  under applicable law or  relating to  the
             syndication of the Facility,  or initiated during the  occurrence
             and continuation of an Event of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the  Credit  Agreement, the  Subsidiary Guaranty  and  the Credit
             Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty and the Credit  Documents (or any of  them) may be subject  or
       give rise and  shall indemnify the  Trustee on  demand against any  and
       all  liabilities with  respect  to  or  resulting  from  any  delay  or
       omission on the part of the Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to  the Trustee hereunder shall be in  writing and shall be
       made to the following address:

                   Wilmington Trust Company
                   Rodney Square North
                   1100 North Market Street
                   Wilmington, DE  19890-0001
                   Telefax:  (302) 651-8882
                   Attention: Corporate Trust Division

                   With a copy to:

                   Jennifer L. Janss, Esq.
                   Richards, Layton & Finger
                   P.O. Box 551
                   Wilmington, DE  19899


       All  other notices  shall be  made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This Mortgage shall be binding  upon and shall enure to the  benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors and  permitted assigns  and references  in this Mortgage  to
       any of them shall be construed accordingly.

16.02  The Owner  may not  assign or transfer  all or any  part of  its rights
       and/or obligations under this Mortgage.

16.03  Pursuant to Section  12.16 of the  Credit Agreement, each Bank  has the
       right  to  assign or  transfer all  or any  part  of its  rights and/or
       obligations under the Credit Agreement  on the terms therein  provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The total  amount of this Mortgage is One  Hundred Million U.S. Dollars
       (US$100,000,000)  of  principal plus  interest,  fees, commissions  and
       performance of mortgage  covenants.  The  discharge amount is  the same
       as the total amount.

18.    MISCELLANEOUS

18.01  If at any time any  one or more of the  provisions in this Mortgage  is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability of  the
       remaining provisions of  this Mortgage shall not be in any way affected
       or impaired thereby.

18.02  The Trustee, at any  time and from time to time, may  delegate by power
       of attorney or in any other  manner to any person or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such  delegation may be made upon such  terms and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be  in any way liable  or responsible to the Owner  for any loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for in this  Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The  Owner agrees that the Trustee shall have the liberty but shall not
       be  obliged to  take any  proceedings in the  courts of  any country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the  purpose of any proceedings for  such enforcement the Owner
       hereby submits to the jurisdiction  of the courts of any country of the
       choice of the Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place the Rig  shall be found lying  and for the purpose of  any action
       which the Trustee may bring before  the courts of such jurisdiction  or
       other judicial authority and  for the purpose of  any action which  the
       Trustee may bring against the Rig, any  writ, notice, judgment or other
       legal process or documents may (without  prejudice to any other  method
       of service under  applicable law) be served upon the  master of the Rig
       (or upon anyone acting as the master) and such  service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner  agrees that  should the  Trustee  bring a  legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out of or  in connection with  this Mortgage, no immunity  from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the  Owner hereby consents generally in respect  of any legal action or
       proceedings arising out of  or in connection with this Mortgage  to the
       giving out  of any relief  or the  issue of  any process in  connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which  may be made or given in such
       action or proceedings.

IN WITNESS  whereof the Owner has caused this Mortgage to be executed the  day
and year first before written.


READING & BATES EXPLORATION CO.


By_____________________________________
  Its:




                         ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On this 30th day of April, 1996  before me personally appeared ____________ to
me known who  being by me duly  sworn did dispose and  say that he  resides at
_________________________________, that he is ____________________________ for
READING  &  BATES EXPLORATION  CO.,  the corporation  described  in and  which
executed the foregoing  instrument; and  that he  signed his  name thereto  by
order of the Board of Directors of READING & BATES EXPLORATION CO.




                                                 --------------------
                                                 Notary Public

                                                            Exhibit 10.89     
                                                                            


                           FIRST PREFERRED MORTGAGE

                             Dated April 30, 1996

                         READING & BATES DRILLING CO.

                                - in favor of -

                     WILMINGTON TRUST COMPANY, not in its 
                   individual capacity but solely as Trustee

                                  JACK BATES


==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTER                                   PAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . .   2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . .   7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . .   8 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . .   9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .   9 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  17 
      9     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS . . . . . . . .  18 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  21 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  23 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  24 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  24 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

      ACKNOWLEDGEMENT OF MORTGAGE

      EXHIBIT 1 FORM OF CREDIT AGREEMENT

==============================================================================

THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 30th day  of

April, 1996



BY



(1)    READING  &  BATES  DRILLING CO.,  an  Oklahoma  corporation  having its
       principal offices at 901 Threadneedle, Suite  200, Houston, Texas 77079
       (the "Owner"), 

IN FAVOR OF

(2)    WILMINGTON  TRUST  COMPANY,  a  Delaware  banking  corporation   having
       offices  at Rodney Square North,  1100 North Market Street, Wilmington,
       Delaware  19890-0001,  not in  its  individual capacity  but  solely as
       indenture trustee  for  the  Banks  (as  hereinafter  defined)  and  as
       mortgagee (the "Trustee")

WHEREAS

(A)    The Owner  is  the sole  owner  of the  whole  of the  semi-submersible
       drilling unit  JACK BATES  documented under  the laws and  flag of  the
       United States  of America  with Official Number 906283  of 19,928 gross
       registered tons and 14,948 net registered tons (the "Rig").

(B)    By a  Credit Agreement dated as  of April 30,  1996 (as in  effect from
       time   to  time,   the  "Credit  Agreement")   among  Reading  &  Bates
       Corporation,  a  Delaware corporation,  ("Holdings"),  the  Owner,  the
       Banks party  thereto, Credit Lyonnais,  New York  Branch, as  co-agent,
       and Christiania  Bank og  Kreditkasse, New York  Branch, as agent  (the
       "Agent") (the  form of which Credit  Agreement together with  Exhibit B
       thereto but  without the  remaining attachments  is attached  hereto as
       Exhibit 1), it was agreed among other things that the Banks would  make
       available to the Owner upon the terms  and conditions therein described
       a reducing revolving  credit facility (the "Facility") in  an aggregate
       amount  at any  time outstanding  of One  Hundred Million United States
       Dollars (US$100,000,000), providing  for the  making of  Loans and  the
       issuance  of, and participation in,  Letters of  Credit as contemplated
       therein.

(C)    The  obligations  of  the  Owner  with  respect  to  the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the  promissory notes of  the Owner payable  to the  order of
       the respective Banks (each a "Note" and  collectively the "Notes") (the
       form of which is attached as Exhibit B to the Credit Agreement). 

(D)    This  Mortgage and this  Deed of Covenants is  made for  the benefit of
       the Mortgagee to  secure the guaranty by the Owner  of (i) the full and
       prompt payment  when due of  (x) the principal  of and interest on  the
       Notes  issued, and  Loans made,  under the  Credit  Agreement, and  all
       reimbursement  obligations and  Unpaid  Drawings  with respect  to  the
       Letters of Credit  issued under the Credit Agreement  and (y) all other
       obligations   and    indebtedness   (including   without    limitation,
       indemnities, Fees and interest thereon) of the  Borrower to the Secured
       Creditors (as hereinafter  defined), whether now existing  or hereafter
       incurred  under,  arising out  of  or  in connection  with  the  Credit
       Agreement  and   the   other   Credit  Documents   including,   without
       limitation,  this Mortgage and  the due  performance and  compliance by
       the  Borrower  with   all  of  the  terms,  conditions  and  agreements
       contained  in  the Credit  Agreement  and  the other  Credit  Documents
       including,  without limitation,  this Mortgage;  (ii) any  and all sums
       advanced  by  the Trustee  in  order  to preserve  the  Collateral  (as
       hereinafter  defined)  or   preserve  its  security  interest   in  the
       Collateral;  (iii) in the event of any proceeding for the collection or
       enforcement of  any indebtedness,  obligations, or  liabilities of  the
       Borrower referred to  in clause (i)  above, after an  Event of  Default
       shall have occurred  and be continuing, the reasonable expenses  of the
       Trustee of re-taking, holding, preparing for sale  or lease, selling or
       otherwise  disposing of  or  realizing on  the  Collateral, or  of  any
       exercise  by  the  Trustee  of  its  rights  hereunder,  together  with
       reasonable attorneys' fees  of counsel to the Trustee and  court costs;
       and  (iv)  all  amounts  paid  by  any  Indemnitee  as  to  which  such
       Indemnitee  has the  right to  reimbursement under  Clause  13 of  this
       Mortgage   (all  such  obligations,   liabilities,  sums  and  expenses
       referred  to  in  clauses  (i) through  (iv)  above  being collectively
       referred to as  the "Obligations").  It is acknowledged and agreed that
       the  "Obligations" shall  include  extensions of  credit  of the  types
       described above,  whether outstanding on the  date of this  Mortgage or
       extended from time to time after the date of this Mortgage.  

(E)    This  Mortgage is entered  into by  the Owner  in consideration  of the
       Banks agreeing,  at the  request of  the Owner,  to  make the  Facility
       available to the Owner  under the terms of the Credit  Agreement and as
       a condition  thereto  and for  other  good and  valuable  consideration
       provided  by the  Banks  (the sufficiency  of  which the  Owner  hereby
       acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage  unless the context otherwise requires,  the following
       expressions shall have the following meanings:-

       "Agent" shall have the  same meaning for such term as set  forth in the
       Credit Agreement;

       "Bank" means  any lender  listed from time  to time  on Annex I  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral Assignment  of Insurance" means  the Collateral  Assignment
       of Insurance in  respect of the Rig executed  or to be executed  by the
       Owner in favor of the Agent;

       "Credit Agreement"  means the  Agreement, dated as  of April 30,  1996,
       among  Holdings,  the  Owner,  the Banks,  Credit  Lyonnais,  New  York
       Branch, as co-agent,  and the  Agent first referred  to in Recital  (B)
       hereto;

       "Credit Documents" shall have  the meaning for such  term as set  forth
       in the Credit Agreement;

       "Credit Facility Period"  shall mean the period commencing on  the date
       hereof and  ending on the date  the Total Commitments  have terminated,
       no Letters of  Credit remain outstanding and  the Loans and  the Unpaid
       Drawings, together with  interest, fees  and all other  obligations are
       paid in full;

       "Credit Party" shall have  the meaning  for such term  as set forth  in
       the Credit Agreement;

       "Default  Rate"  shall  mean   the  rate  of  interest  calculated   in
       accordance with Section 1.07(b) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claim" means  any and all administrative,  regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal reports  prepared  by  Holdings  or any  of  its  Subsidiaries
       solely in  the ordinary  course of  such Person's business  and not  in
       response  to  any  third  party  action or  request  of  any  kind)  or
       proceedings relating in any way to any Environmental Law or  any permit
       issued,  or  any  approval  given,  under any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable Environmental  Law, and  (b)  any and  all
       Claims   by   any    third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment.

       "Environmental  Incident"  means  (i)  any  release  of Environmentally
       Sensitive  Material   from  the  Rig,  (ii)   any  incident   in  which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and  which involves collision  between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which Environmentally  Sensitive Material is released from  a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and, in  each  such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing and  the  like, into  or upon  any  land or  water or  air,  or
       otherwise entering into the environment);

       "Environmental   Laws"   means  all   applicable   laws,   regulations,
       conventions   and  agreements  whatsoever   relating  to  pollution  or
       protection of the  environment (including, without limitation,  the Oil
       Pollution Act  of 1990 (33  U.S.C.  2701  et seq.),  the Comprehensive
       Environmental Response,  Compensation, and  Liability Act  of 1980  (42
       U.S.C.  9601 et seq.), the Hazardous  Materials Transportation Act (49
       U.S.C.   1801 et seq.), the Resource  Conservation and Recovery Act of
       1976  (42 U.S.C.  6901 et  seq.), the Clean Air Act  (42 U.S.C.  7401
       et seq.), the Federal Water Pollution Control Act (33 U.S.C.  1251  et
       seq.) and the Toxic  Substances Control Act (15 U.S.C.   2601 et seq.)
       (all  of the  foregoing as  amended), and  any comparable  laws of  the
       individual  States of the  United States of America  or any other state
       or nation); 

       "Fees" shall have  the same meaning for such  term as set forth  in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials,  asbestos in  any form that  is or could  become
       friable,  urea  formaldehyde  foam  insulation, transformers  or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or included  in the definition  of "hazardous
       substances,"  "hazardous  waste,"  "hazardous   materials,"  "extremely
       hazardous  waste," "restricted  hazardous  waste," "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar  import, under any  applicable Environmental  Law; and  (c) any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning provided in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression  includes  all  entries  of the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to time  taken  out  or
       entered into  in respect of the Rig or  otherwise by the Owner (whether
       in the sole  name of the Owner or in  the joint names of the  Owner and
       the Agent)  and all  benefits thereof  (including claims of  whatsoever
       nature and return of premiums);

       "Interest  Period" shall have  the same  meaning for  such term  as set
       forth in Section 1.08 of the Credit Agreement;

       "Letter  of Credit" shall  have the same meaning  for such  term as set
       forth in Section 2.01 of the Credit Agreement; 

       "Loan(s)"  shall have the  same meaning for such  term as  set forth in
       the Credit Agreement;

       "Major  Casualty" means any casualty to  the Rig in respect whereof the
       claim  or the  aggregate of  the claims  against  all insurers,  before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means  each promissory note of the  Owner referred to in Recital
       (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (D) hereto;

       "Oil  Pollution Act 1990"  means the Oil Pollution  Act 1990 (33 U.S.C.
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       offshore  drilling  rig  D.  R.  STEWART  owned   by  Reading  &  Bates
       Exploration Co. ("R&B Exploration") documented under the  laws and flag
       of  the  United  States  with Official  Number  626904  of  6494  gross
       registered  tons  and  5834  net  registered  tons;  (ii)  the offshore
       drilling rig W. D. KENT owned  by R&B Exploration documented under  the
       laws  and flag  of the  United States  with Official  Number  583169 of
       5,383 gross  registered tons and 4,185  net registered tons;  (iii) the
       offshore drilling rig CHARLEY GRAVES owned by  Reading and Bates Borneo
       Drilling Co., Ltd.  documented under the laws and  flag of the Republic
       of  Panama with  Patente Number  6618-76-CH of  5,829 gross  registered
       tons and 1,748 net  registered tons; (iv) the offshore drilling rig RON
       TAPPMEYER owned  by Reading & Bates  (A) Pty Ltd. documented  under the
       laws and flag of Australia with Official  Number 855213 of 11,455 gross
       registered tons  and 3436  net registered  tons; and  (v) the  offshore
       drilling rig J.W.  McLEAN owned by the Owner  documented under the laws
       and  flag of the Bahamas  with Official Number  715954 of 9199.01 gross
       registered tons and 7267.22 net registered tons;

       "Permitted  Liens" means:  (1)  liens incident  to expenses  of current
       operations, other than  for master's and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty  (30) days (or being contested in good faith, provided
       such liens are  not in excess  of U.S.$5,000,000.00, and  if in  excess
       thereof, then the Owner  shall, upon the written request of  the Agent,
       provide a bond or other security satisfactory to the  Agent); (2) liens
       for master's and  crew's wages not yet  due and payable; (3)  liens for
       taxes, assessments,  governmental charges, fines  and penalties not  at
       the time delinquent  (unless being  contested in  good faith,  provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then the Owner shall,  upon the written request of the  Agent,
       provide a bond or other security satisfactory to the Agent);  (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for  claims covered  by valid policies  of insurance meeting  the
       requirements of Clause 6  hereof (except that no  lien shall be  deemed
       not covered by insurance  to the extent insurance in force  would cover
       the  amount secured  by  the lien  but  for any  applicable  deductible
       amount  approved by  the  Agent); (6)  liens  arising pursuant  to  any
       judgment  or to  an order  of attachment,  distraint  or similar  legal
       process arising in  connection with legal proceedings, but only  if and
       so long as the  execution or other enforcement thereof is  not unstayed
       for more than  30 consecutive  days; (7) any  lien for  the payment  or
       discharge of which provisions satisfactory to the  Agent have been made
       as evidenced by the Agent's written consent to  such lien; (8) any lien
       in favor  of the Banks;  and provided  that Permitted  Liens shall  not
       include any liens described in subclauses (1)  through (7) above unless
       they:  (i)  are subordinate  to  the  lien  of this  Mortgage  or  (ii)
       constitute a  maritime lien  which would  in any  event be entitled  as
       such to  priority over  the Mortgage under  the United States  shipping
       laws or  other applicable laws relating  to the Rig's  trading pattern.
       Nothing  herein shall  be deemed a  waiver of  the preferred  status of
       this Mortgage; 

       "Protection  and indemnity  risks"  means the  usual  risks covered  by
       protection   and   indemnity  associations   of   international  repute
       including the proportion  not recoverable  in case  of collision  under
       the ordinary  running-down clause (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the Credit Facility Period by  reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means  the vessel  described in Recital  (A) hereto and  includes
       any  share  or interest  therein  and  her  engines, machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and  appurtenances whether  on board  or ashore and  whether
       now owned  or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors"  shall mean the Trustee,  the Banks, the  Letter of
       Credit  Issuer  and  the  Agent under  and  as  defined  in  the Credit
       Agreement;

       "Security Documents" shall  have the same meaning for  such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or  other security interest or arrangement of  any kind
       whatsoever;

       "Taxes" shall  have the same meaning for such term  as set forth in the
       Credit Agreement;

       "Total  Commitment" shall have  the same  meaning for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means (a)  the actual, constructive, arranged,  agreed, or
       compromised  Total Loss  of the Rig;  (b) the requisition  for title or
       other compulsory  acquisition or forfeiture  of the Rig otherwise  than
       by requisition  for hire;  (c) the capture,  seizure, arrest, detention
       or confiscation of  the Rig by any  government or by persons  acting or
       purporting  to  act  on behalf  of  any government  unless  the  Rig be
       released from such capture, seizure, arrest  or detention within ninety
       (90) days after the occurrence thereof;

       "United States  Dollars" and  "US$" means  the lawful  currency of  the
       United States of America;

       "Unpaid  Drawing"  shall have  the same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War Risks" includes the  risk of mines and all risks excluded from the
       standard  form of  English marine  policy by  the free  of  capture and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:-

       (a)   Clause headings are inserted  for convenience only and shall  not
             affect the  construction of this  Mortgage and, unless  otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,  words  denoting   the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to assets  include  property,  rights and  assets  of
             every description;

       (e)   references to any  document are to be construed as  references to
             such document as amended or supplemented from time to time; and

       (f)   references to  any  enactment include  re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:-

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to any Security Interest (except  for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has  not sold  or transferred,  or agreed  to sell  or
             transfer, title to the Rig or any share therein; 

       (c)   the Owner  is a  corporation duly organized  and validly existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the Owner  has full power  and authority (i) to  register the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the Owner  has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig; 

       (f)   the  Owner  has  taken  all necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner enforceable against the  Owner in accordance with its terms
             (except   to  the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency, moratorium  or other laws of  general
             application  relating   to  or  affecting   the  enforcement   of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's National  Vessel  Documentation Center  in Falling
             Waters, West Virginia will create a legal, valid and  enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any  respect (i) any law or regulation  of any governmental or
             official  authority or  body,  or (ii)  any  of the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the  Owner is a party  or which is binding  upon the Owner or any
             of its assets;

       (h)   all  consents, licenses, approvals and authorizations required in
             connection  with  the  entry  into,   performance,  validity  and
             enforceability    of   this   Mortgage   and   the   transactions
             contemplated hereby  and thereby have  been obtained  and are  in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage,  it is not necessary  for the  legality, validity,
             enforceability or  admissibility  in  evidence of  this  Mortgage
             that  it or  any document relating  thereto be registered, filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or  that any stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       (j)   all  applicable Environmental  Laws  and Environmental  Approvals
             relating  to  the  Rig,  its  operation  and  management and  the
             business of  the  Owner  (as  now  conducted  and  as  reasonably
             anticipated to be conducted  in the future) have been obtained or
             complied with;

       (k)   no  Environmental Claim has been  made or  threatened against the
             Owner,  the Approved Manager or otherwise  in connection with the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be  expected to result, in  an Environmental  Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall  survive the execution of this Mortgage and shall be deemed to be
       repeated at  the time of the making of each Loan and at the time of the
       issuance  of each  Letter  of Credit,  with  respect to  the  facts and
       circumstances  existing at  each such  time, as  if made  at each  such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto the Trustee, its successors  and assigns, the whole of the  Rig TO
       HAVE AND TO HOLD the  same unto the Trustee, its successors and assigns
       forever upon  the terms herein  set forth  for the  enforcement of  the
       Obligations.

       Provided only and  the condition of these presents is  such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been performed  in full  as  and when  the same  shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained  in the Subsidiary Guaranty and  this Mortgage
       expressed or implied to be performed, observed or complied with  by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent  and meaning thereof,
       then these  presents and the  rights hereunder  shall cease,  determine
       and be  void otherwise to be  and remain in full  force and effect and,
       in such  event, the indenture Trustee  agrees to execute and  record at
       the  expense  of  the  Owner,  all such  documents  as  the  Owner  may
       reasonably require to discharge this Mortgage.  
       Notwithstanding anything  to the  contrary herein  it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of  this Mortgage  and that  if any  provision or  part  thereof herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in relation to  the Rig and none  of the Secured Creditors  shall
       be under  any obligation of any  kind whatsoever in respect  thereof or
       be under any liability whatsoever  in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors  for   all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges  or other  moneys as are  stated in  this Mortgage  to be
             payable by  the Owner  to or  recoverable from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to  indemnify any of  the Secured Creditors  at the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other moneys  referred to
             in  Clause 4.01(a) from the  date on which demand  is made by any
             Secured Creditors as  the case may  be, for payment by  the Owner
             of  the  relevant expense,  claim, liability,  loss,  cost, duty,
             fee, charge or other money incurred  by any Secured Creditor  for
             which  the  Owner  is  responsible  (both  before and  after  any
             relevant judgment) at the Default Rate; and

       (c)   to pay and perform its  obligations which may be or become due or
             owing to any Secured Creditor under  this Mortgage and the  other
             Credit Documents  to which the  Owner is or is  to be a  party at
             the times and in the manner specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:-

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee as  a  continuing security  for  the performance  of  the
             Obligations  and  that  the  security  so  created  shall not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way  be prejudiced or  affected by any of  the other Security
             Documents;

       (c)   the Trustee shall not  have to wait for  the Agent, the Banks  or
             the Letter of Credit Issuer to enforce  any of the other Security
             Documents   before  enforcing   the  security   created  by  this
             Mortgage;

       (d)   no delay  or omission on  the part of  the Trustee  in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or  remedy or be construed  as a waiver thereof  nor
             shall any single or partial exercise of any such right,  power or
             remedy preclude any further  exercise thereof or the exercise  of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given in writing  and then only for the purpose  and
             upon the terms for which it is given.

5.02   Any settlement  or discharge  under this Mortgage  between the  Trustee
       and  the Owner shall be conditional upon  no security or payment to the
       Secured  Creditors or any of  them by  the Credit Parties  or any other
       person being avoided or set-aside or ordered to be  refunded or reduced
       by virtue  of  any  provision  or  enactment  relating  to  bankruptcy,
       insolvency, administration or  liquidation for the time being  in force
       and, if such condition  is not satisfied, the Trustee shall be entitled
       to recover  from the Owner on demand the  value of such security or the
       amount of any  such payment as if such settlement  or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security   hereby  constituted  shall  not  be  affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to  impair, affect or  discharge such rights and  security, in whole or
       in part, including  without limitation, and whether or  not known to or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:-

       (a)   any  time or  waiver granted to  the Credit Parties  or any other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of the  Credit  Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents  (other than this Mortgage)  or any  other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or   frustration   of  any
             obligations  of any  of the  Credit Parties  or any  other person
             under the  Credit Agreement,  any of the  other Credit  Documents
             (other than this Mortgage) or any other document or security.

5.04   Until the Obligations have been satisfied  in full to the  satisfaction
       of  the Trustee,  the Owner  shall not  by virtue  of any  payment made
       hereunder  on  account  of  the  Obligations   or  by  virtue  of   any
       enforcement  by  the  Trustee of  its  rights  under,  or  the security
       constituted  by,  this  Mortgage  or  by  virtue  of  any  relationship
       between,  or  transaction involving,  the Owner  and  Holdings (whether
       such relationship or transaction  shall constitute the Owner a creditor
       of Holdings,  a guarantor  of the obligations  of Holdings  or a  party
       subrogated  to  the  rights  of others  against  Holdings  or otherwise
       howsoever and whether or  not such relationship or transaction shall be
       related  to,  or  in  connection  with,  the  subject  matter  of  this
       Mortgage):-

       (a)   exercise any rights  of subrogation  in relation  to any  rights,
             security or moneys held  or received or receivable by the Secured
             Creditors or any other person; or

       (b)   be  entitled  to  exercise  any right  of  contribution  from any
             co-surety  liable in respect of such moneys and liabilities under
             any other guaranty, security or agreement; or


       (c)   exercise  any right  of set-off or  counterclaim against Holdings
             or any such co-surety; or

       (d)   receive, claim or have the benefit  of any payment, distribution,
             security or indemnity from Holdings or any such co-surety; or

       (e)   unless so directed by the  Trustee (when the Owner will  prove in
             accordance  with  such  directions),  claim  as   a  creditor  of
             Holdings or any such co-surety in competition with the Trustee.

       The  Owner shall  hold in  trust for the  Trustee and  forthwith pay or
       transfer (as  appropriate) to the Trustee  any such  payment (including
       an amount equal to any such  set-off), distribution or benefit of  such
       security, indemnity or claim in fact received by it.

5.05   The Owner  unconditionally  and irrevocably  agrees  that if  any  sums
       hereby secured are not recoverable on the basis of a guaranty  (whether
       by reason of legal limitation, illegality,  disability or incapacity on
       or of  Holdings or the Owner  or any other person  or by reason  of any
       other  fact  or   circumstance,  and  whether   or  not  known   to  or
       discoverable by the Owner,  Holdings, the Trustee or any other person),
       then the  Owner will, as a separate  and independent stipulation and as
       a primary obligor, pay  to the Trustee on  demand an amount or  amounts
       equal  to the amount or amounts which  the Owner would have been liable
       to pay  but for such irrecoverability and will  on demand indemnify the
       Trustee against  any loss  or  liability suffered  or  incurred by  the
       Secured Creditors or any of them as a result of such irrecoverability.

6.     INSURANCE

6.01   The Owner  covenants with  the Trustee  throughout the Credit  Facility
       Period that:-

       (a)   The Owner  shall, at its  own expense,  when and  so long as  any
             Obligations  remain  outstanding, insure  the  Rig  and keep  her
             insured,  or cause the Rig to be  insured, in lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and  indemnity  risks, pollution  liability,  and war
             risks), in such  form (including without limitation, the  form of
             the  loss payable  clause and the  designation of named assureds)
             and  with such  first  class insurance  companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably satisfactory to the Agent.   With respect to hull  and
             machinery/increased  value  insurance,  including  war  risk, the
             Owner  shall insure the  Rig and keep  her insured,  or cause the
             Rig  to be  insured, for  an amount  which is  at least  the full
             commercial value of the Rig, and  when such amount is  aggregated
             with  the amount of  such insurance coverage  on the  Other Rigs,
             such  aggregate  amount  shall be  at  least  110%  of  the Total
             Commitment.   The Rig shall in no  event be insured for an amount
             less  than the agreed  valuation as set  forth in  the applicable
             marine and war risk  policies.  Such insurance shall cover marine
             and war risk perils,  on hull and machinery, with deductibles not
             in  excess of US$500,000  (such deductibles not  to apply  in the
             case of Total Loss  of the Rig), and  shall be maintained in  the
             broadest   forms  available   in   the   American,  British   and
             Scandinavian   insurance  markets   or   in  such   other   major
             international  markets reasonably  acceptable to the  Agent.  The
             Owner shall maintain,  or cause to be maintained,  protection and
             indemnity or equivalent  insurance, including war risk protection
             and indemnity coverage and coverage against pollution  liability,
             in an amount  not less than  US$100,000,000 (or, with  respect to
             pollution  liability  coverage, such  greater  amount  as may  be
             required from  time to  time by the  Oil Pollution  Act 1990,  or
             other Environmental Laws), as  and when applicable to the Rig and
             its operations,  through underwriters or  associations acceptable
             to the Agent.  In addition, the Owner shall,  at its own expense,
             furnish  to  the  Agent  a  mortgagee's  single  interest  policy
             providing coverage  which, when  aggregated with the  mortgagee's
             interest  insurance  furnished to  the  Agent in  respect  of the
             Other  Rigs, shall be in an amount  equal to at least 110% of the
             Total  Commitment  (or  in  lieu  of  such  mortgagee's  interest
             insurance  Owner  shall cause  the  hull and  machinery/increased
             value  insurance to  be  endorsed to  afford  breach of  warranty
             coverage  for  the  benefit  of  the  Agent).    Such mortgagee's
             interest insurance and any additional insurance  policies for the
             benefit  of the Agent  shall be maintained  in the  broadest form
             available  in the  American, British and  Scandinavian markets or
             other  major   international  markets  acceptable  to  the  Agent
             through underwriters acceptable to  the Agent.  The Rig shall not
             operate  in or  proceed into  any area  then excluded  by trading
             warranties  under  its marine  or  war  risk policies  (including
             protection  and   indemnity)  without  obtaining   any  necessary
             additional coverage,  satisfactory  in  form and  substance,  and
             evidence of which shall be furnished, to the Agent.

       (b)   The   policy  or  policies  of   insurance  shall  be  issued  by
             responsible  underwriters  reasonably  acceptable to  the  Agent,
             shall   contain  conditions,  terms,  stipulations  and  insuring
             covenants satisfactory to  the Agent, and  shall be kept  in full
             force  and effect by the Owner so  long as any Obligations remain
             outstanding.    All  such  policies, binders  and  other  interim
             insurance contracts shall be executed and  issued in the name  of
             the Owner and shall,  to the extent required herein, provide that
             loss be payable to  the Agent for  distribution by it to  itself,
             the Banks and  the Owner as their interests may appear, and shall
             provide for at least  ten days' prior notice  to be given to  the
             Agent  by  the  underwriters  or  association  in  the  event  of
             cancellation  or the failure  of the Owner to  pay any premium or
             call  which  would  suspend  coverage under  the  policy  or  the
             payment of a claim thereunder.   The Agent and the  Trustee shall
             be  named  as co-assureds  on  all  such  policies and  insurance
             contracts, but without liability  of the Agent or the Trustee for
             premiums  or  calls.   Certified  copies  of all  such  policies,
             binders and other interim insurance contracts  shall be deposited
             with  the Agent.    Originals shall  also  be  provided upon  the
             request  of the  Agent.   The Owner  shall  furnish to  the Agent
             annually a detailed report signed by  a firm of marine  insurance
             brokers satisfactory to the  Agent as to the insurance maintained
             in respect  of the Rig,  as to their opinion  as to  the adequacy
             thereof and as to compliance with  the provisions of this  Clause
             6.01.

             Unless  otherwise  required  by  the  Agent   by  notice  to  the
             underwriters, although the following insurance is  payable to the
             Agent, (i) any loss  under any insurance on the Rig  with respect
             to  protection and indemnity  risks may be  paid directly  to the
             Owner to reimburse  it for any  loss, damage or  expense incurred
             by it and covered by such insurance or to the  person to whom any
             liability covered  by such  insurance has been  incurred and (ii)
             in the  case of any loss (other than a  loss covered by (i) above
             or by the next  following paragraph of this Clause 6.01(b)) under
             any  insurance with respect  to the Rig  involving any  damage to
             the Rig, the underwriters  may pay direct for the repair, salvage
             or other  charges involved  or,  if the  Owner  shall have  first
             fully repaired the  damage or paid  all of the  salvage or  other
             charges, may pay the  Owner as reimbursement therefor;  provided,
             however, that  if such damage  involves a before deductible  loss
             in  excess of US$1,000,000, the  underwriters shall not make such
             payment  without first  obtaining the written  consent thereto of
             the  Agent (which  consent shall  not be  unreasonably withheld).
             Any loss  covered by this  paragraph which is  paid to the  Agent
             but  which  might  have   been  paid,  in  accordance  with   the
             provisions of this  paragraph, directly  to the Owner  or others,
             shall  be paid by the Agent to,  or as directed by, the Owner and
             all  other  payments  to the  Agent  of  losses  covered  by this
             paragraph  shall  be applied  by  the  Agent in  accordance  with
             Clause 10.01.

             In  the event  of  an  actual or  constructive  Total  Loss or  a
             compromised constructive Total Loss or requisition  of title, all
             insurance  payments therefor  shall be  paid to  the Agent.   The
             Owner shall not declare or agree  with the underwriters that  the
             Rig  is  a  constructive  or  compromised,   agreed  or  arranged
             constructive Total Loss without  the prior written consent of the
             Agent.

       (c)   In the event of an actual or constructive Total  Loss of the Rig,
             the Agent shall retain  out of the insurance payments received on
             account of  such loss any  sum or  sums that  shall be or  become
             owing  to  the Secured  Creditors under  the  Security Documents,
             whether  or not the same  be then due  and payable, together with
             accrued  interest  and  the  cost,  if  any,  of  collecting  the
             insurance, and pay the balance as provided in Clause 10. 

       (d)   The Owner shall comply with and satisfy all of the  provisions of
             any applicable law, regulation, proclamation  or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will maintain,  or cause to be  maintained, all  certificates
             or other evidence of financial responsibility  as may be required
             by  any such law, regulation,  proclamation or order with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The  Owner shall renew all insurances as they expire and so as to
             insure that  there is no gap in coverage,  keep the Agent advised
             of the progress of such renewals,  and procure that the  insurers
             shall  promptly confirm in writing to  the Agent as and when each
             such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or other  sums  payable  in  respect of  all  such
             insurances and produce  all relevant receipts when so required by
             the Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments   of   insurance  aforesaid   relative  to   the  Rig
             (including any warranties, express  or implied, therein)  without
             first  obtaining the  consent of the  insurers to such employment
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants  with  the  Trustee  that  throughout the  Credit
       Facility Period the Owner will:-

       (a)   maintain  its existence  as a  corporation in  good standing duly
             organized under the laws of the State of Oklahoma;

       (b)   keep the Rig  documented in  its name as  a United States  vessel
             and  to do or allow to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig in a  good and efficient state of repair  consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1 Column Stabilized Drilling Unit with  Ice Strengthening Class
             1C)  at the American Bureau  of Shipping  free of recommendations
             and qualifications and  change of class, save  those notified  to
             and  approved in writing by the Trustee  and so as to comply with
             all laws, regulations and  requirements (statutory or  otherwise)
             from time  to time  applicable  to vessels  documented under  the
             laws  and flag  of the  United States  and applicable  to vessels
             trading to any  jurisdiction to which the Rig may, subject to the
             provisions of this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost parts  or equipment be  effected in such manner  (both as
             regards workmanship and quality of materials)  as to not diminish
             the value of the  Rig and not to remove any  material part of, or
             item of equipment installed  on, the Rig unless the part  or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is  in the same  condition as or better  condition than the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner and  subject  to  the  security  constituted  by  this
             Mortgage;

       (f)   submit  the Rig to  such periodical  or other  surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee and the Agent  copies of all survey reports
             issued in respect thereof;

       (g)   permit the representatives of the Agent  or independent surveyors
             representing  the  Trustee to  board  the Rig  at  all reasonable
             times and  upon reasonable notice  for the purpose of  inspecting
             her condition  or  for the  purpose of  satisfying themselves  in
             regard to proposed or executed repairs  and to afford all  proper
             facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in respect  of the  Rig  and all  other outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig pursuant  to  legal  process, or  in  the event  of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require; 

       (i)   not  employ  the Rig  or allow  her  employment in  any  trade or
             business  which  is  unlawful  under  the laws  of  any  relevant
             jurisdiction  or in carrying  illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part  of the world (whether war be declared or
             not) not employ the Rig or suffer  her employment in carrying any
             contraband  goods  or to  enter or  trade  to any  zone  which is
             declared a  war  zone  by any  government  or  by the  war  risks
             insurers  of the Rig unless there shall have been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time to  time require  regarding the  Rig,  her employment,
             position   and  engagements,  particulars   of  all  towages  and
             salvages and,  upon the  Trustee's request in  writing, copies of
             all  charters and other contracts for her employment or otherwise
             howsoever concerning her;

       (k)   notify both  the Trustee  and  the Agent  forthwith  by telex  or
             telecopy thereafter confirmed by letter of:-

             (i)  any casualty to the Rig which is or is  likely to be a Major
                  Casualty, and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss, and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by any  competent  authority
                     which is not immediately complied with, and

             (iv)    any  arrest  of  the  Rig or  the  exercise  or purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire, and

             (v)  any intended dry docking of the  Rig, as to which the  Owner
                  shall give the Trustee ten (10) days prior notice, provided,
                  that in the event  of any emergency dry docking of  the Rig,
                  the Owner shall immediately notify the Trustee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for  normal periods of inactivity  between contracts
                     for the  Rig during which periods the Rig remains manned)
                     and obtain the Trustee's prior written consent;

       (l)   keep proper  books of account  in respect of the  Rig and  as and
             when  the Trustee  or the  Agent may  so reasonably  require make
             such books available for  inspection on behalf of the Trustee and
             furnish satisfactory evidence that  the wages and allotments  and
             the  insurance of the  master and crew  are being  regularly paid
             and that  all deductions  from  crew's wages  in  respect of  tax
             and/or social  security liability  are  being properly  accounted
             for  and that  the master  has no  claim for  disbursements other
             than  those incurred by him in the  ordinary course of trading on
             the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement  which apply to  the Rig  and the Owner,  and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis; 

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of  any person for the purpose of work being done upon
             her  in an amount exceeding or likely  to exceed Two Million Five
             Hundred  Thousand United  States  Dollars (US$2,500,000)  (or the
             equivalent in any  other currency) unless such person shall first
             have given  to the Trustee  and in terms reasonably  satisfactory
             to it a written undertaking  not to exercise any lien on  the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established  by the  Ship Mortgage  Act and  any other  pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid and enforceable  first and  preferred lien upon  the
             Rig  and promptly  to furnish to  the Trustee  from time  to time
             such proof as the Trustee may  request for its satisfaction  with
             respect  to the  Owner's compliance  with the  provisions of this
             sub-clause;

       (p)   place,  and use  due diligence  to retain,  a  properly certified
             copy of this Mortgage on  board the Rig with her papers and cause
             such certified copy of  this Mortgage to be exhibited to  any and
             all persons having  business with the  Rig which might  give rise
             to any lien  thereon other than a lien  for crew's wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and in  the master's  cabin  of the  Rig  a framed  printed
             notice in plain type in  English of such size that the  paragraph
             of  reading matter  shall cover  a space  not less  than 6 inches
             wide and 9 inches high reading as follows:-

                                       "NOTICE OF MORTGAGE

             This Rig is covered by a  First Preferred Mortgage to  WILMINGTON
             TRUST  COMPANY  not  in its  individual  capacity  but solely  as
             Trustee  for  the  Banks  defined  in  the  said  Mortgage  under
             authority  of  the United  States  Ship  Mortgage  Act, 1920,  as
             amended, recodified  as 46  U.S.C.  31301 et.  seq.   Under  the
             terms of the  said Mortgage neither  the Owner nor  any charterer
             nor the master of  this Rig nor any  other person has any  right,
             power  or authority to create, incur or permit to be imposed upon
             this  Rig  any  lien  whatsoever  other  than  for  crew's wages,
             general average and salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)  any Environmental Claim  which could reasonably be  expected
                  to result in damages in  excess of US$200,000 being or  made
                  against the Owner, or otherwise  in connection with the Rig;
                  or

             (ii)    any  Environmental  Incident  occurring,  and  keep   the
                     Trustee advised, in writing on  such regular basis and in
                     such detail as the Trustee shall  require, of the Owner's
                     response  to such  Environmental  Claim or  Environmental
                     Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by the  Credit  Agreement) without  the  written consent  of  the
             Trustee  having first been obtained, and any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to  be a waiver of  this provision with respect  to any
             subsequent proposed sale, mortgage  or transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the lien  it creates.   The Owner shall not  charter
             the Rig to, or permit  the Rig to serve under any  contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or  "specially designated national"
             of  a "designated foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury  Department, 31 C.F.R. Parts 500  and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity" in  the  Libyan
             Sanctions Regulations of  the United States  Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of the  Government of Iraq" or "Iraqi  Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified at  31 C.F.R. Part  575, as amended,  all within  the
             meaning    of   said   Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter any Cuban  port for any purpose or engage  in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision  of   the  Iranian   Transactions
             Regulations, 31 C.F.R.  Part 560, as amended,  the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or violation  would (i)  expose the  Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary to law,  shall not abandon  the Rig in  a foreign  port,
             shall not  engage in  any unlawful  trade or violate  any law  or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or  capture, and  shall not do,  or suffer or  permit to be done,
             anything which can or may injuriously  affect the registration or
             enrollment of  the Rig under  the laws of  the United  States and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound)  at any time and  as often as may  be necessary to  take any
       such action  as it  may in  the reasonable  exercise of its  discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created  by this Mortgage  and the  other Credit  Documents (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:-

       (a)   if the Owner  does not comply with the  provisions of Clause 6 or
             any  of them  the  Agent shall  be  entitled (but  not bound)  to
             effect  or to replace  and renew and  thereafter to  maintain the
             Insurances in such manner  as in its discretion it may  think fit
             and to  require that all  policies, contracts  and other  records
             relating   to   the   Insurances  (including   details   of   any
             correspondence  concerning   outstanding  claims)   be  forthwith
             delivered  to such  brokers  as the  Agent  may  nominate and  to
             collect, recover, compromise and  give a  good discharge for  all
             claims  then  outstanding   or  thereafter   arising  under   the
             Insurances or  any  of them  and to  take over  or institute  (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection therewith as the Agent in its absolute discretion  may
             think fit and to permit the  brokers through whom the  collection
             or  recovery is effected to charge  the usual brokerage therefor;
             and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but  not bound) to arrange for the carrying out of such
             repairs to  and/or surveys of  the Rig as  it deems  expedient or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or  any of them  the Trustee  shall be entitled  (but not
             bound)  to  pay  and  discharge  all   such  debts,  damages  and
             liabilities  and  all  such  tolls,   dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS

9.01   Upon the  happening of any  of the Events of  Default specified  in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration  in any jurisdiction to the effect that an Event of Default
       has occurred (and whether prior to  or after the Required Banks  having
       served on the Owner any such notice  as is referred to in Section  9 of
       the  Credit Agreement) the security constituted  by this Mortgage shall
       become immediately  enforceable and the  Trustee shall be entitled,  as
       and when it may see fit, to  put into force and exercise all or any  of
       the powers possessed by it as mortgagee of the Rig or otherwise and  in
       particular:-

       (a)   to  exercise  all  the rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to take possession of the Rig  whether actually or constructively
             and/or otherwise to take control of the  Rig wherever the Rig may
             be and cause the Owner  or any other person in possession  of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal  process and without  liability of the Trustee  for
             any  losses  or damages  incurred thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure  that  the Agent  collect, recover,  compromise  and give
             good discharge for any and  all moneys or claims for  moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection or recovery is effected to  charge the usual brokerage
             therefor;

       (e)   to take over  or institute (if  necessary using  the name of  the
             Owner)  or, to  the extent  lawful, procure  that the  Agent take
             over or  institute all  such proceedings  in connection with  the
             Rig,  the  Insurances, or  any  Requisition  Compensation as  the
             Trustee in its  absolute discretion thinks fit  and to discharge,
             compound,  release  or compromise  claims  against  the Owner  in
             respect  of the  Rig which  have given  or may  give rise  to any
             charge or lien on the  Rig or which are or may  be enforceable by
             proceedings against the Rig;

       (f)   to  sell  the Rig  or  any share  therein with  or  without prior
             notice to the  Owner free from any  claim of or  by the Owner  of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or all of the purchase price be deferred)  as the Trustee in
             its absolute discretion may determine with power to postpone  any
             such  sale, without being answerable  for any  loss occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to purchase  the Rig at  any such public auction  and to  set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for the purposes aforesaid the Trustee  shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting the Rig,  and the insurance,  management, maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in  all respects as if the Trustee were  the owner of the Rig and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as  may be  incurred  by  the  Trustee in  or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental  to the  exercise  by  it  of any  of  the  powers
             aforesaid.

9.02   The  Trustee shall not be obliged to make  any enquiry as to the nature
       or  sufficiency of any payment received by it under this Mortgage or to
       make any  claim, take  any action  or enforce any  rights and  benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates and  advisers shall  be liable  for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection with  the  exercise or  purported  exercise of  any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall  not by reason of the taking possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or  be liable for any loss upon  realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any sale  of the  Rig or  any share  therein by  the  Trustee the
       purchaser shall not  be bound to see  or enquire whether the  Trustee's
       power of sale has  arisen in the manner  provided in this Mortgage  and
       the sale shall be deemed to be within the power  of the Trustee and the
       receipt  of  the  Trustee  for  the  purchase money  shall  effectively
       discharge the  purchaser who shall not be concerned  with the manner of
       application  of the  proceeds  of  sale or  be  in any  way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All moneys received by the Trustee  (or any Secured Creditor,  as
             the case  may be)  in respect  of  sale of  the Rig  or any  part
             thereof;  in respect  of  recovery under  the  Insurances; or  in
             respect of Requisition Compensation,

       shall be applied in the following manner:-

             (i)     first, to the payment of all amounts owing the Trustee of
                     the type described in  clauses (ii) and (iii) of  Recital
                     D;
             (ii)            second,  to the  extent  moneys remain  after the
                             application pursuant to the preceding clause (i),
                             an  amount equal  to the  outstanding Obligations
                             shall  be  paid  to  the   Secured  Creditors  as
                             provided in  Clause 10.01(c),  with each  Secured
                             Creditor  receiving  an   amount  equal  to  such
                             Obligations held by  it or,  if the proceeds  are
                             insufficient to pay in full all such Obligations,
                             its  Pro  Rata Share  (as  defined below)  of the
                             amount remaining to be distributed; and

             (iii)           third,  to  the  extent moneys  remain  after the
                             application pursuant to the preceding clauses (i)
                             and (ii),  and following the termination  of this
                             Mortgage  pursuant to  Clause  3.01, any  surplus
                             then  remaining  shall  be  paid  to  the  Owner,
                             subject, however, to the rights  of the holder of
                             any then existing  Lien of which the  Trustee has
                             actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid  amount of such Obligations owing to  or held by such
             Secured  Creditor  and  the  denominator  of  which is  the  then
             outstanding  amount of  all such  Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee shall  be entitled  to request  each Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed  to it  and shall  be  entitled to  reply  upon the  amounts
             stated therein in making such distribution.

       (c)   All payments required to  be made to Secured Creditors  hereunder
             shall  be made to  the Agent under  the Credit  Agreement for the
             account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i)  the Agent under  the Credit Agreement  and (ii)  the Secured
             Creditors for a determination (which  the Agent and each  Secured
             Creditor, by  their acceptance of  the benefits of this  Mortgage
             shall  be obligated to  provide upon request  of the  Trustee) of
             the  outstanding  Obligations  owed  to  the  Secured  Creditors.
             Unless it  has  actual knowledge  (including  by way  of  written
             notice from a Secured  Creditor) to the contrary, the Agent under
             the Credit Agreement, in  furnishing information pursuant to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be  entitled  to  assume  that  (x)  no  obligations  other  than
             principal, interest and  regularly accruing fees are owing to any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:-

       (a)   perfecting  or protecting the security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting  any of the  rights of the  Trustee, the
             Agent,  the Banks,  and the  Letter of  Credit Issuer  under this
             Mortgage; or

       (c)   ensuring that the  security constituted by this Mortgage  and the
             covenants and obligations of the Owner under this  Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner, by  way of security and  in order more  fully to secure  the
       performance  of  the  Obligations,  hereby   irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:-

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering  in its name all  documents which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage  shall have become  immediately enforceable  pursuant to
             Clause 9.01; and

       (b)   executing,   signing,   perfecting,  doing   and   (if  required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of such  power as is referred to in Clause  12.01(a) by or
       on behalf  of the Trustee  shall not  put any  person dealing with  the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor  shall such  person be  in any  way affected  by notice
       that this  Mortgage has not become enforceable and, in relation to both
       Clauses 12.01(a)  and  12.01(b), the  exercise by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The Owner will  indemnify and save  harmless the Secured  Creditors and
       each  agent or attorney  appointed under or  pursuant to  this Mortgage
       (each an "Indemnitee") from and against  any and all expenses,  claims,
       liabilities, losses, taxes, costs,  duties, fees and charges  suffered,
       incurred or made  by such Secured  Creditors or such agent  or attorney
       in good faith:-

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in  the preservation or enforcement of the Trustee's rights under
             this Mortgage; or

       (c)   on the  release of  the Rig  from  the security  created by  this
             Mortgage,

       and the Secured  Creditors and each such  agent or attorney may  retain
       and  pay all sums  in respect of  the same out of  money received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by  such  Secured  Creditor  or  such   agent  or  attorney  shall   be
       recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees,  attorneys and  agents from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of  them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury  (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental   Claim  brought  or
       threatened,  or  settlement  reached;  or (d)  any  violation  of laws,
       orders, regulations,  requirements or demands of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable law  or regulation, and whether pursuant to  a
       judgment being made or  registered against the Owner or the liquidation
       of  the Owner  or  for  any  other  reason, any  payment  under  or  in
       connection  with this  Mortgage is made  or fails to  be satisfied in a
       currency  (the "payment  currency") other  than the  currency in  which
       such payment  is due  under or  in connection with  this Mortgage  (the
       "contractual  currency"), then to  the extent that  the amount  of such
       payment  actually received  by  the Trustee,  when  converted into  the
       contractual  currency at  the  rate of  exchange,  falls  short of  the
       amount due under or in  connection with this Mortgage, the Owner,  as a
       separate and independent obligation, shall indemnify  and hold harmless
       the  Trustee against the amount of such shortfall.  For the purposes of
       this Clause 13.03,  "rate of  exchange"  means the  rate  at which  the
       Trustee  is  able  on the  date  of  such  payment (or,  if  it  is not
       practicable  for the Trustee to  purchase the contractual currency with
       the  payment  currency on  the date  of such  payment,  at the  rate of
       exchange as  soon afterwards as  is practicable for  the Trustee to  do
       so) to purchase the  contractual currency with the payment currency and
       shall take into  account any premium  and other costs of  exchange with
       respect thereto.

14.    EXPENSES

14.01  The Owner  shall pay to the Trustee and  the Agent on demand all costs,
       fees  and expenses,  including,  but not  limited  to,  legal fees  and
       expenses and valuation fees and Taxes  thereon incurred by any  Secured
       Creditor may become liable in connection with:-

       (a)   the  negotiation,  preparation  and   execution  of  the   Credit
             Agreement and the Credit Documents (or any of them); and/or

       (b)   the  preserving or  enforcing of,  or attempting  to preserve  or
             enforce,  any of its  rights under the  Credit Agreement  and the
             Credit Documents (or any of them).

14.02  The Owner shall pay to the Trustee  and the Agent on demand all  costs,
       fees  and expenses  (including,  but not  limited  to,  legal fees  and
       expenses)  and  Taxes  thereon  incurred  by any  Secured  Creditor  in
       connection with:-

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the  Credit Agreement and  the Credit Documents  (or any
             of them) requested  by the  Owner, necessary  or advisable  under
             applicable  law or relating to  the syndication  of the Facility,
             or  initiated during the occurrence and  continuation of an Event
             of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the Credit Agreement and the Credit Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement  and  the  Credit
       Documents  (or any  of them)  may  be subject  or give  rise and  shall
       indemnify the Trustee  on demand against  any and all  liabilities with
       respect to or resulting from any  delay or omission on the part of  the
       Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to the Trustee  hereunder shall be in writing and  shall be
       made to the following address:

                   Wilmington Trust Company
                   Rodney Square North
                   1100 North Market Street
                   Wilmington, DE  19890-0001
                   Telefax:  (302) 651-8882
                   Attention: Corporate Trust Division 
 
                   With a copy to:

                   Jennifer L. Janss, Esq.
                   Richards, Layton & Finger
                   P.O. Box 551
                   Wilmington, DE  19899


       All  other notices  shall  be made  to the  addresses given  in Section
       12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This Mortgage shall  be binding upon and shall enure  to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors and  permitted assigns  and references  in this Mortgage  to
       any of them shall be construed accordingly.

16.02  The Owner may  not assign  or transfer all  or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.16 of the  Credit Agreement, each  Bank has the
       right  to assign  or transfer  all  or any  part of  its rights  and/or
       obligations  under the Credit Agreement on  the terms therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The total amount of this  Mortgage is One Hundred Million U.S.  Dollars
       (US$100,000,000)  of principal  plus  interest, fees,  commissions  and
       performance of mortgage  covenants.  The  discharge amount is  the same
       as the total amount.

18.    MISCELLANEOUS

18.01  If at any  time any one or more  of the provisions in  this Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law  or regulation,  the validity,  legality and  enforceability of the
       remaining provisions of this Mortgage shall not  be in any way affected
       or impaired thereby.

18.02  The Trustee, at any  time and from time to time,  may delegate by power
       of attorney or in  any other manner to any person or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any  such delegation may be made upon such  terms and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in any  way liable or responsible to  the Owner for any loss  or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided  for in this Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The Owner agrees that the  Trustee shall have the liberty but shall not
       be obliged  to take any  proceedings in  the courts  of any country  to
       protect  or enforce the  security constituted  by this  Mortgage and/or
       the Credit  Agreement and  the  Security Documents  or  to enforce  any
       provisions  of  this  Mortgage and/or  the  Credit  Agreement  and  the
       Security Documents or  to enforce the  Obligations and for  the purpose
       of  any proceedings for  such enforcement the  Owner hereby  submits to
       the jurisdiction  of the courts  of any  country of  the choice of  the
       Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place the  Rig shall be found  lying and for the  purpose of any action
       which the  Trustee may bring before the  courts of such jurisdiction or
       other judicial authority and  for the purpose  of any action which  the
       Trustee may bring  against the Rig, any writ, notice, judgment or other
       legal process or documents may (without  prejudice to any other  method
       of service under applicable law)  be served upon the master of  the Rig
       (or upon anyone acting as  the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The Owner  agrees  that should  the  Trustee bring  a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out of  or in connection with  this Mortgage, no immunity  from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without  limitation,  suit,   attachment  prior   to  judgment,   other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by or  on behalf of the Owner  or with respect of  its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby  consents generally in respect of  any legal action or
       proceedings arising out of or  in connection with this Mortgage  to the
       giving  out of  any relief  or the issue  of any  process in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made  or given in such
       action or proceedings.

IN WITNESS  whereof the Owner has  caused this Mortgage to be executed the day
and year first before written.

READING & BATES DRILLING CO.

By_____________________________________
  Its:


                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On   this   30th  day   of   April,  1996   before   me  personally   appeared
________________________ to me  known who being  by me duly sworn  did dispose
and  say that  he  resides at  _________________________________,  that he  is
____________________________ for READING & BATES DRILLING CO., the corporation
described in and  which executed the foregoing instrument; and  that he signed
his  name thereto  by  order of  the Board  of  Directors of  READING  & BATES
DRILLING CO.

                                                    
                                                 Notary Public 


                                                            Exhibit 10.90     
                                                                              


                           FIRST PREFERRED MORTGAGE

                             Dated April 30, 1996

                        READING & BATES EXPLORATION CO.

                                - in favor of -

                     WILMINGTON TRUST COMPANY, not in its
                   individual capacity but solely as Trustee

                                   W.D.KENT

==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTER                                    PAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . . . 9 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  10 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  13 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  17 
      9     ENFORCEABILITY AND TRUSTEE'S POWERS . . . . . . . . . . . . .  17 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  19 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  20 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  21 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  21 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  23 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  24 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  24 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  24 

      ACKNOWLEDGEMENT OF MORTGAGE

      EXHIBIT 1 FORM OF CREDIT AGREEMENT

      EXHIBIT 2 FORM OF SUBSIDIARY GUARANTY

==============================================================================

THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 30th day  of
April, 1996

BY

(1)    READING &  BATES EXPLORATION CO.,  an Oklahoma  corporation having  its
       principal offices at 901  Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"),

IN FAVOR OF

(2)    WILMINGTON   TRUST  COMPANY,  a  Delaware  banking  corporation  having
       offices at Rodney Square  North, 1100 North Market Street,  Wilmington,
       Delaware  19890-0001, not  in  its individual  capacity  but solely  as
       indenture  trustee  for  the  Banks  (as  hereinafter  defined)  and as
       mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is the sole owner of the whole of  the offshore drilling unit
       W.D. KENT documented  under the laws and  flag of the United  States of
       America with Official Number 583169 of 5,383 gross  registered tons and
       4,185 net registered tons (the "Rig").

(B)    By a  Credit Agreement dated as  of April 30,  1996 (as in  effect from
       time  to   time,  the  "Credit   Agreement")  among  Reading  &   Bates
       Corporation,  a  Delaware corporation  ("Holdings"),  Reading  &  Bates
       Drilling  Co., an  Oklahoma  corporation  (the "Borrower"),  the  Banks
       party  thereto, Credit  Lyonnais,  New York  Branch,  as co-agent,  and
       Christiania  Bank  og  Kreditkasse, New  York  Branch,  as  agent  (the
       "Agent") (the  form of which Credit  Agreement together with  Exhibit B
       thereto but without  the remaining  attachments is  attached hereto  as
       Exhibit 1), it was  agreed among other things that the Banks would make
       available  to the  Borrower  upon  the  terms  and  conditions  therein
       described a reducing  revolving credit facility (the "Facility")  in an
       aggregate  amount  at  any  time  outstanding of  One  Hundred  Million
       United States  Dollars (US$100,000,000),  providing for  the  making of
       Loans and the issuance of,  and participation in, Letters of Credit  as
       contemplated therein.

(C)    The  obligations of  the  Borrower with  respect  to the  Facility  are
       evidenced by  the  Credit Agreement  and  the other  Credit  Documents,
       including the promissory notes of the Borrower  payable to the order of
       the respective  Banks (each  a "Note"  and, collectively, the  "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed  and   delivered  a   Subsidiary  Guaranty  (the   "Subsidiary
       Guaranty"),  the form  of which Subsidiary  Guaranty is attached hereto
       as Exhibit 2,  in favor  of the Agent  guaranteeing the performance  by
       the Borrower  of its  obligations under  the Credit  Agreement and  the
       other Credit Documents.

(E)    This Mortgage is  made for  the benefit of  the Trustee  to secure  the
       guaranty  by the Owner of (i)  the full and prompt  payment when due of
       (x) the  principal of  interest on  the Notes  issued, and  Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect  to the Letters of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of  the Borrower  to  the Secured  Creditors  (as hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit  Agreement and the other Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by the  Borrower with  all  of the  terms,
       conditions and agreements  contained in  the Credit  Agreement and  the
       other Credit  Documents including,  without limitation, this  Mortgage;
       (ii) any and all sums advanced by the Trustee in  order to preserve the
       Collateral (as hereinafter  defined) or preserve its  security interest
       in  the  Collateral;  (iii) in  the  event of  any  proceeding  for the
       collection   or  enforcement  of   any  indebtedness,  obligations,  or
       liabilities  of the Borrower referred to  in clause (i) above, after an
       Event of Default shall have occurred and  be continuing, the reasonable
       expenses of  the Trustee of re-taking,  holding, preparing for  sale or
       lease,  selling   or  otherwise  disposing  of   or  realizing  on  the
       Collateral, or of any exercise by the  Trustee of its rights hereunder,
       together with reasonable attorneys' fees of counsel  to the Trustee and
       court costs; and  (iv) all amounts paid  by any Indemnitee as  to which
       such  Indemnitee has the right to reimbursement under Clause 13 of this
       Mortgage  (all   such  obligations,  liabilities,   sums  and  expenses
       referred  to  in  clauses (i)  through  (iv)  above  being collectively
       referred to as the "Obligations").  It  is acknowledged and agreed that
       the  "Obligations"  shall include  extensions  of credit  of  the types
       described above,  whether outstanding on the  date of this  Mortgage or
       extended from time to time after the date of this Mortgage.

(F)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of the  Banks agreeing to make the Facility  available to
       the  Borrower  and  as  a  condition thereto  and  for  other  good and
       valuable consideration provided  by the Banks (the sufficiency of which
       the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In  this Mortgage unless the  context otherwise requires, the following
       expressions shall have the following meanings:-

       "Agent" shall have  the same meaning for such term  as set forth in the
       Credit Agreement;

       "Bank"  means any lender  listed from time  to time  on Annex 1  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral Assignment  of Insurance"  means the  Collateral Assignment
       of Insurance in respect  of the Rig executed  or to be executed by  the
       Owner in favor of the Agent;

       "Credit Agreement"  means the Credit Agreement,  dated as of  April 30,
       1996, among Holdings,  the Borrower,  the Banks,  Credit Lyonnais,  New
       York Branch, as co-agent,  and the Agent  first referred to in  Recital
       (B) hereto;

       "Credit Documents"  shall have the meaning  for such term as  set forth
       in the Credit Agreement;

       "Credit Facility Period"  shall mean the period commencing on  the date
       hereof and  ending on the date  the Total Commitments  have terminated,
       no Letters  of Credit remain outstanding  and the Loans and  the Unpaid
       Drawings together  with interest, fees  and all  other obligations  are
       paid in full;

       "Credit Party"  shall have the same meaning for  such term as set forth
       in the Credit Agreement;

       "Default  Rate"  shall  mean   the  rate  of  interest  calculated   in
       accordance with Section 1.07(b) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal reports  prepared  by  Holdings  or any  of  its  Subsidiaries
       solely in  the ordinary  course of  such Person's business  and not  in
       response  to  any  third  party  action or  request  of  any  kind)  or
       proceedings relating in any way to any Environmental Law or  any permit
       issued,  or  any  approval  given,  under any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable Environmental  Law, and  (b)  any and  all
       Claims   by   any    third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release  of Environmentally
       Sensitive  Material   from  the  Rig,  (ii)   any  incident   in  which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and  which involves collision  between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which Environmentally  Sensitive Material is released from  a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and, in  each  such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing and  the  like, into  or upon  any  land or  water or  air,  or
       otherwise entering into the environment);

       "Environmental   Laws"   means  all   applicable   laws,   regulations,
       conventions   and  agreements  whatsoever   relating  to  pollution  or
       protection of the  environment (including, without limitation,  the Oil
       Pollution Act  of 1990 (33  U.S.C.  2701  et seq.),  the Comprehensive
       Environmental Response,  Compensation, and  Liability Act  of 1980  (42
       U.S.C.  9601 et seq.), the Hazardous  Materials Transportation Act (49
       U.S.C.   1801 et seq.), the Resource  Conservation and Recovery Act of
       1976  (42 U.S.C.  6901 et  seq.), the Clean Air Act  (42 U.S.C.  7401
       et seq.), the Federal Water Pollution Control Act (33 U.S.C.  1251  et
       seq.) and the Toxic  Substances Control Act (15 U.S.C.   2601 et seq.)
       (all  of the  foregoing as  amended), and  any comparable  laws of  the
       individual  States of the  United States of America  or any other state
       or nation);

       "Fees" shall have  the same meaning for such  term as set forth  in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials,  asbestos in  any form that  is or could  become
       friable,  urea  formaldehyde  foam  insulation, transformers  or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or included  in the definition  of "hazardous
       substances,"  "hazardous  waste,"  "hazardous   materials,"  "extremely
       hazardous  waste," "restricted  hazardous  waste," "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar  import, under any  applicable Environmental  Law; and  (c) any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression  includes  all  entries  of the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to time  taken  out  or
       entered into  in respect of the Rig or  otherwise by the Owner (whether
       in the sole  name of the Owner or in  the joint names of the  Owner and
       the Agent)  and all  benefits thereof  (including claims of  whatsoever
       nature and return of premiums);

       "Interest  Period" shall have  the same  meaning for  such term  as set
       forth in Section 1.08 of the Credit Agreement;

       "Letter  of Credit" shall  have the same meaning  for such  term as set
       forth in Section 2.01 of the Credit Agreement;

       "Loan(s)"  shall have the  same meaning for such  term as  set forth in
       the Credit Agreement;

       "Major  Casualty" means any casualty to  the Rig in respect whereof the
       claim  or the  aggregate of  the claims  against  all insurers,  before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note"  means each  promissory  note of  the  Borrower referred  to  in
       Recital (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil  Pollution Act 1990"  means the Oil Pollution  Act 1990 (33 U.S.C.
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       offshore  drilling rig  JACK  BATES owned  by  the Borrower  documented
       under  the  laws and  flag of  the United  States with  Official Number
       906283  of 19,928  gross registered  tons and    14,948 net  registered
       tons; (ii) the offshore  drilling rig D.R.  STEWART owned by the  Owner
       documented under the laws and flag  of the United States with  Official
       Number 626904 of  6,494 gross registered tons and 5,834  net registered
       tons; (iii) the  offshore drilling rig CHARLEY GRAVES owned  by Reading
       and Bates Borneo Drilling Co., Ltd. documented under the  laws and flag
       of  the Republic  of Panama  with Patente  Number  6618-76-CH of  5,829
       gross registered tons and 1,748 net registered  tons; (iv) the offshore
       drilling rig  RON  TAPPMEYER owned  by  Reading &  Bates  (A) Pty  Ltd.
       documented  under  the  laws  and  flag  of  Australia  with   Official
       Number 855213 of  11,455 gross registered tons and 3,436 net registered
       tons;  and (v)  the  offshore drilling  rig J.W.  McLEAN  owned by  the
       Borrower  documented  under the  laws  and  flag of  the  Bahamas  with
       Official  Number 715954  of 9199.01 gross  registered tons  and 7267.22
       net registered tons;

       "Permitted  Liens" means:  (1)  liens incident  to expenses  of current
       operations, other than  for master's and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty  (30) days (or being contested in good faith, provided
       such liens are  not in excess  of U.S.$5,000,000.00, and  if in  excess
       thereof, then the Owner  shall, upon the written request of  the Agent,
       provide a bond or other security satisfactory to the  Agent); (2) liens
       for master's and  crew's wages not yet  due and payable; (3)  liens for
       taxes, assessments,  governmental charges, fines  and penalties not  at
       the time delinquent  (unless being  contested in  good faith,  provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then the Owner shall,  upon the written request of the  Agent,
       provide a bond or other security satisfactory to the Agent);  (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for  claims covered  by valid policies  of insurance meeting  the
       requirements of Clause 6  hereof (except that no  lien shall be  deemed
       not covered by insurance  to the extent insurance in force  would cover
       the  amount secured  by  the lien  but  for any  applicable  deductible
       amount  approved by  the  Agent); (6)  liens  arising pursuant  to  any
       judgment  or to  an order  of attachment,  distraint  or similar  legal
       process arising in  connection with legal proceedings, but only  if and
       so long as the  execution or other enforcement thereof is  not unstayed
       for more than  30 consecutive  days; (7) any  lien for  the payment  or
       discharge of which provisions satisfactory to the  Agent have been made
       as evidenced by the Agent's written consent to  such lien; (8) any lien
       in favor  of the Banks;  and provided  that Permitted  Liens shall  not
       include any liens described in subclauses (1)  through (7) above unless
       they:  (i)  are subordinate  to  the  lien  of this  Mortgage  or  (ii)
       constitute a  maritime lien  which would  in any  event be entitled  as
       such to  priority over  the Mortgage under  the United States  shipping
       laws or  other applicable laws relating  to the Rig's  trading pattern.
       Nothing  herein shall  be deemed a  waiver of  the preferred  status of
       this Mortgage; 

       "Protection  and indemnity  risks"  means the  usual  risks covered  by
       protection   and   indemnity  associations   of   international  repute
       including the proportion  not recoverable  in case  of collision  under
       the ordinary  running-down clause (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the Credit Facility Period by  reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means  the vessel  described in Recital  (A) hereto and  includes
       any  share  or interest  therein  and  her  engines, machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and  appurtenances whether  on board  or ashore and  whether
       now owned  or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors"  shall mean the Trustee,  the Banks, the  Letter of
       Credit  Issuer  and  the  Agent under  and  as  defined  in  the Credit
       Agreement;

       "Security Documents" shall  have the same meaning for  such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or  other security interest or arrangement of  any kind
       whatsoever;

       "Subsidiary Guaranty"  means the agreement dated  as of April  23, 1996
       made  by the  Owner  in favor  of the  Agent  as first  referred to  in
       Recital (D) hereto;

       "Taxes" shall have  the same meaning for such term  as set forth in the
       Credit Agreement;

       "Total  Commitment" shall  have the same  meaning for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive,  arranged, agreed, or
       compromised Total Loss  of the Rig;  (b) the requisition  for title  or
       other compulsory  acquisition or forfeiture  of the Rig otherwise  than
       by  requisition for  hire; (c) the  capture, seizure, arrest, detention
       or confiscation of  the Rig by any  government or by persons  acting or
       purporting to  act  on behalf  of  any  government unless  the  Rig  be
       released from such capture,  seizure, arrest or detention within ninety
       (90) days after the occurrence thereof;

       "United States  Dollars" and  "US$" means  the lawful  currency of  the
       United States of America;

       "Unpaid  Drawing" shall  have the  same meaning  for such  term  as set
       forth in the Credit Agreement;

       "War Risks" includes the risk of mines and all risks excluded from  the
       standard form  of English  marine policy  by  the free  of capture  and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:-

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect the  construction of this  Mortgage and, unless  otherwise
             specified,  all  references to  Clauses  are to  clauses  of this
             Mortgage;

       (b)   unless  the   context  otherwise  requires,  words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to assets  include  property,  rights and  assets  of
             every description;

       (e)   references to any  document are to be construed as  references to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:-

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to  any Security Interest (except for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has not  sold or  transferred, or  agreed  to sell  or
             transfer, title to the Rig or any share therein;

       (c)   the Owner  is a corporation  duly organized and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the Owner has full  power and authority (i)  to register the  Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig;

       (f)   the  Owner has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner  enforceable against the Owner in accordance with its terms
             (except  to   the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency,  moratorium or other laws  of general
             application  relating  to   or  affecting   the  enforcement   of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's  National Vessel  Documentation Center  in Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect  (i) any law or regulation  of any governmental or
             official  authority or  body,  or (ii)  any  of the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is  a party or which  is binding upon the  Owner or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection  with   the  entry  into,  performance,  validity  and
             enforceability    of   this   Mortgage   and   the   transactions
             contemplated hereby  and thereby  have been  obtained and  are in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage, it  is not  necessary for the  legality, validity,
             enforceability  or  admissibility in  evidence  of this  Mortgage
             that it or  any document relating thereto  be registered,  filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or that any stamp, registration or similar  taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws relating to the Rig, its operation and management;

       (k)   the  Owner has  obtained all  Environmental  Approvals and  is in
             compliance with all requests thereof;

       (l)   no Environmental  Claim has  been made or  threatened against the
             Owner, the Approved  Manager or otherwise in  connection with the
             Rig; and

       (m)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be expected  to result,  in an Environmental  Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall  survive the execution of this Mortgage and shall be deemed to be
       repeated at  the time of the making of each Loan and at the time of the
       issuance  of  each Letter  of  Credit, with  respect to  the  facts and
       circumstances existing  at each  such time,  as  if made  at each  such
       time.

3.     MORTGAGE

3.01   In  order to secure the Obligations the Owner has granted, conveyed and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the Trustee, its successors and  assigns, the whole of the Rig  TO HAVE
       AND  TO HOLD  the same  unto the  Trustee, its  successors and  assigns
       forever upon  the terms  herein set  forth for  the enforcement of  the
       Obligations.

       Provided only and  the condition of these presents is  such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been performed  in full  as  and when  the same  shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in the  Subsidiary Guaranty and this  Mortgage
       expressed or  implied to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then these  presents and  the rights  hereunder shall  cease, determine
       and be void otherwise  to be and remain  in full force and  effect and,
       in such event, the  Indenture Trustee agrees  to execute and record  at
       the expense  of  the  Owner,  all  such  documents  as  the  Owner  may
       reasonably require to discharge this Mortgage.

       Notwithstanding  anything to  the contrary  herein  it is  not intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that if  any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig  and none of the Secured  Creditors shall
       be under  any obligation of any  kind whatsoever in  respect thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors   for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or other  moneys as  are stated  in this  Mortgage to  be
             payable by  the Owner to  or recoverable  from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other  moneys referred to
             in Clause 4.01(a)  from the date on  which demand is made  by any
             Secured  Creditor  for  payment  by  the  Owner  of  the relevant
             expense,  claim,  liability, loss,  cost,  duty,  fee, charge  or
             other money incurred  by a Secured  Creditor for which  the Owner
             is  responsible (both before and  after any relevant judgment) at
             the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing  to  a  Secured  Creditor  under  this   Mortgage  and  the
             Subsidiary  Guaranty at  the  times and  in the  manner specified
             herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:-

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be prejudiced  or affected by any  of the other  Security
             Documents;

       (c)   the Trustee shall not have  to wait for the Agent to  enforce any
             of  the other  Security Documents  before enforcing  the security
             created by this Mortgage;

       (d)   no  delay or  omission on the  part of the  Trustee in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or remedy  or be construed  as a waiver thereof  nor
             shall any single  or partial exercise of any such right, power or
             remedy preclude any further  exercise thereof or the  exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given in  writing and then only for  the purpose and
             upon the terms for which it is given.

5.02   Any settlement  or discharge  under this  Mortgage between  the Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being  avoided or set-aside or ordered to be refunded or reduced
       by  virtue  of  any  provision or  enactment  relating  to  bankruptcy,
       insolvency, administration  or liquidation for the  time being in force
       and, if such condition is not satisfied, the  Trustee shall be entitled
       to recover from the Owner  on demand the value of such security  or the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to  impair, affect or discharge  such rights and  security, in whole or
       in  part, including without limitation, and whether  or not known to or
       discoverable by the Secured Creditors or any other person:-

       (a)   any time or  waiver granted  to the Credit  Parties or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of the  Credit  Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents  (other than this Mortgage)  or any  other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or   frustration   of  any
             obligations  of any  of the  Credit Parties  or any  other person
             under  the Credit Agreement, any of  the other Security Documents
             (other than this Mortgage) or any other document or security.

6.     INSURANCE

6.01   The Owner  covenants with  the Trustee  throughout the Credit  Facility
       Period that:-

       (a)   The Owner  shall, at its  own expense,  when and  so long as  any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured,  or cause the Rig to be  insured, in lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and  indemnity  risks, pollution  liability,  and war
             risks), in such  form (including without limitation, the  form of
             the  loss payable  clause and the  designation of named assureds)
             and  with such  first  class insurance  companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably satisfactory to the Agent.   With respect to hull  and
             machinery/increased  value  insurance,  including  war  risk, the
             Owner  shall insure the  Rig and keep  her insured,  or cause the
             Rig  to be  insured, for  an amount  which is  at least  the full
             commercial value of the Rig, and  when such amount is  aggregated
             with  the amount of  such insurance coverage  on the  Other Rigs,
             such  aggregate  amount  shall be  at  least  110%  of  the Total
             Commitment.   The Rig shall in no  event be insured for an amount
             less  than the agreed  valuation as set  forth in  the applicable
             marine and war risk  policies.  Such insurance shall cover marine
             and war risk perils,  on hull and machinery, with deductibles not
             in  excess of US$500,000  (such deductibles not  to apply  in the
             case of Total Loss  of the Rig), and  shall be maintained in  the
             broadest   forms  available   in   the   American,  British   and
             Scandinavian   insurance  markets   or   in  such   other   major
             international  markets reasonably  acceptable to the  Agent.  The
             Owner shall maintain,  or cause to be maintained,  protection and
             indemnity or equivalent  insurance, including war risk protection
             and indemnity coverage and coverage against pollution  liability,
             in an amount  not less than  US$100,000,000 (or, with  respect to
             pollution  liability  coverage, such  greater  amount  as may  be
             required from  time to  time by the  Oil Pollution  Act 1990,  or
             other Environmental Laws), as  and when applicable to the Rig and
             its operations,  through underwriters or  associations acceptable
             to the Agent.  In addition, the Owner shall,  at its own expense,
             furnish  to  the  Agent  a  mortgagee's  single  interest  policy
             providing coverage  which, when  aggregated with the  mortgagee's
             interest  insurance  furnished to  the  Agent in  respect  of the
             Other  Rigs, shall be in an amount  equal to at least 110% of the
             aggregate  amount of  the Total  Commitment (or  in lieu  of such
             mortgagee's  interest insurance  Owner shall  cause the  hull and
             machinery/increased  value  insurance to  be  endorsed  to afford
             breach of warranty coverage for  the benefit of the Agent).  Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies for the benefit of the Agent shall be  maintained in the
             broadest   form   available  in   the   American,   British   and
             Scandinavian  markets  or   other  major  international   markets
             acceptable  to the  Agent through underwriters  acceptable to the
             Agent.   The Rig shall  not operate  in or proceed  into any area
             then excluded by trading  warranties under its marine or war risk
             policies (including  protection and indemnity)  without obtaining
             any  necessary  additional  coverage,  satisfactory  in form  and
             substance,  and  evidence of  which  shall be  furnished,  to the
             Agent.

       (b)   The  policy  or   policies  of  insurance  shall   be  issued  by
             responsible  underwriters  reasonably  acceptable  to  the Agent,
             shall  contain  conditions,  terms,   stipulations  and  insuring
             covenants satisfactory to  the Agent, and  shall be kept  in full
             force and effect by  the Owner so long as any  Obligations remain
             outstanding.    All  such  policies, binders  and  other  interim
             insurance contracts shall be executed and  issued in the name  of
             the Owner and shall,  to the extent required herein, provide that
             loss be  payable to the Agent  for distribution by  it to itself,
             the Banks and the Owner  as their interests may appear, and shall
             provide for at least  ten days' prior notice  to be given to  the
             Agent  by  the  underwriters  or  association  in  the  event  of
             cancellation or the  failure of the  Owner to pay any  premium or
             call  which  would  suspend  coverage  under  the policy  or  the
             payment  of a claim thereunder.  The  Agent and the Trustee shall
             be named  as  co-assureds  on all  such  policies  and  insurance
             contracts, but without liability  of the Agent or the Trustee for
             premiums  or  calls.    Certified copies  of  all  such policies,
             binders and other interim insurance contracts  shall be deposited
             with  the Agent.    Originals shall  also  be  provided upon  the
             request of  the Agent.   The  Owner  shall furnish  to the  Agent
             annually a detailed report signed by  a firm of marine  insurance
             brokers satisfactory to the Agent as  to the insurance maintained
             in  respect of the Rig,  as to  their opinion as  to the adequacy
             thereof and as to compliance with  the provisions of this  Clause
             6.01.

             Unless  otherwise  required  by  the  Agent  by   notice  to  the
             underwriters, although the following insurance is  payable to the
             Agent,  (i) any loss under any  insurance on the Rig with respect
             to  protection and indemnity  risks may be  paid directly  to the
             Owner to reimburse  it for any  loss, damage or  expense incurred
             by it  and covered by such insurance or to the person to whom any
             liability covered by such  insurance has  been incurred and  (ii)
             in  the case of any loss (other  than a loss covered by (i) above
             or by the next  following paragraph of this Clause 6.01(b)) under
             any  insurance with respect  to the Rig  involving any  damage to
             the Rig, the underwriters  may pay direct for the repair, salvage
             or other  charges involved  or,  if the  Owner  shall have  first
             fully repaired  the damage or  paid all of  the salvage or  other
             charges, may pay the  Owner as reimbursement therefor;  provided,
             however, that  if such  damage involves a  before deductible loss
             in excess of  US$1,000,000, the underwriters shall  not make such
             payment  without first  obtaining the written  consent thereto of
             the  Agent (which  consent shall  not be  unreasonably withheld).
             Any  loss covered  by this paragraph  which is paid  to the Agent
             but  which   might  have  been  paid,   in  accordance  with  the
             provisions  of this paragraph, directly  to the  Owner or others,
             shall be paid by the Agent  to, or as directed by, the  Owner and
             all  other  payments  to the  Agent  of  losses  covered  by this
             paragraph  shall  be  applied  by the  Agent  in  accordance with
             Clause 10.01.

             In the  event  of an  actual  or  constructive Total  Loss  or  a
             compromised constructive Total Loss or requisition  of title, all
             insurance  payments therefor  shall be  paid to  the Agent.   The
             Owner shall not declare or agree  with the underwriters that  the
             Rig  is  a  constructive  or  compromised,   agreed  or  arranged
             constructive Total Loss without the prior  written consent of the
             Agent.

       (c)   In the event of an  actual or constructive Total Loss of the Rig,
             the Agent shall retain  out of the insurance payments received on
             account  of such  loss any  sum or sums  that shall  be or become
             owing  to  the Secured  Creditors under  the  Security Documents,
             whether or not  the same be then  due and payable,  together with
             accrued  interest  and  the  cost,  if  any,  of  collecting  the
             insurance, and pay the balance as provided in Clause 10.

       (d)   The  Owner shall comply with and satisfy all of the provisions of
             any applicable  law, regulation, proclamation or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will  maintain, or cause  to be maintained, all  certificates
             or other evidence of financial responsibility as may  be required
             by any such  law, regulation, proclamation or  order with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The Owner shall renew all insurances as they expire  and so as to
             insure that there is  no gap in coverage, keep the  Agent advised
             of the progress of such renewals,  and procure that the  insurers
             shall promptly confirm  in writing to the Agent  as and when each
             such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or  other  sums payable  in  respect  of  all such
             insurances and produce all relevant receipts  when so required by
             the Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner  shall not  employ the  Rig or  suffer  the Rig  to be
             employed  otherwise than  in  conformity with  the  terms of  the
             instruments   of  insurance   aforesaid  relative   to   the  Rig
             (including  any warranties, express  or implied, therein) without
             first obtaining the  consent of  the insurers to  such employment
             and complying  with  such requirements  as  to extra  premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The Owner  covenants  with  the  Trustee  that  throughout  the  Credit
       Facility Period the Owner will:-

       (a)   maintain its existence  as a  corporation in  good standing  duly
             organized under the laws of the State of Oklahoma;

       (b)   keep the  Rig documented in  its name  as a United  States vessel
             and to do  or allow to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the  Rig in a good and  efficient state of repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1   Barge)  at  the  American   Bureau  of   Shipping  free  of
             recommendations  and qualifications  and  change  of class,  save
             those notified to and  approved in writing by the Trustee  and so
             as  to  comply  with  all  laws,   regulations  and  requirements
             (statutory  or otherwise) from time to time applicable to vessels
             documented under  the laws  and  flag of  the  United States  and
             applicable to  vessels trading to  any jurisdiction to which  the
             Rig may, subject to the provisions  of this Mortgage, trade  from
             time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or  lost parts or equipment  be effected in  such manner (both as
             regards workmanship and quality of materials) as to  not diminish
             the value  of the Rig and not to remove  any material part of, or
             item of equipment installed on,  the Rig unless the part or  item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is in the  same condition as  or better condition than  the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner  and  subject to  the  security  constituted  by  this
             Mortgage;

       (f)   submit  the Rig  to such periodical  or other  surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee and the Agent copies  of all survey reports
             issued in respect thereof;

       (g)   permit the representatives of the Agent  or independent surveyors
             representing  the Trustee  to  board the  Rig  at all  reasonable
             times and  upon reasonable  notice for the  purpose of inspecting
             her condition  or for  the  purpose of  satisfying themselves  in
             regard to proposed or executed repairs  and to afford all  proper
             facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in respect  of the  Rig and  all  other outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig  pursuant  to legal  process,  or  in the  event  of her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (i)   not  employ the  Rig  or allow  her employment  in  any trade  or
             business  which  is  unlawful  under  the  laws  of any  relevant
             jurisdiction  or in  carrying illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world  (whether war be declared or
             not) not employ the Rig or suffer her  employment in carrying any
             contraband  goods or  to  enter or  trade to  any  zone which  is
             declared  a  war zone  by  any  government or  by  the  war risks
             insurers of the  Rig unless there shall have been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time to  time require  regarding the  Rig, her  employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages and, upon the  request of the Trustee in writing, copies
             of all  charters  and  other  contracts  for  her  employment  or
             otherwise howsoever concerning her;

       (k)   notify both  the Trustee  and  the Agent  forthwith  by telex  or
             telecopy thereafter confirmed by letter of:-

             (i)  any  casualty to the Rig which is or is likely to be a Major
                  Casualty, and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss, and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by  any competent  authority
                     which is not immediately complied with, and

             (iv)    any  arrest of  the  Rig  or  the exercise  or  purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire, and

             (v)     any intended dry docking of the Rig, as to which the Owner
                     shall give  the  Trustee  ten  (10)  days  prior  notice,
                     provided, that in the event of any  emergency dry docking
                     of  the  Rig,  the  Owner  shall  immediately  notify the
                     Trustee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for  normal periods of  inactivity between contracts
                     for the Rig during which  periods the Rig remains manned)
                     and obtain the prior written consent of the Trustee;

       (l)   keep  proper books of account  in respect  of the Rig  and as and
             when  the Trustee  or the  Agent may  so reasonably  require make
             such books available for  inspection on behalf of the Trustee and
             furnish satisfactory evidence that  the wages and allotments  and
             the  insurance of the  master and crew  are being  regularly paid
             and that  all deductions  from  crew's wages  in  respect of  tax
             and/or  social security  liability are  being properly  accounted
             for  and that  the master  has no  claim for  disbursements other
             than those incurred by  him in the ordinary course of  trading on
             the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit  Agreement which apply  to the Rig  and the  Owner, and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person  for the purpose of work being done upon
             her in an amount  exceeding or likely to exceed Two  Million Five
             Hundred  Thousand United  States Dollars  (US$2,500,000) (or  the
             equivalent in any other currency) unless  such person shall first
             have  given to  the Trustee and  in terms reasonably satisfactory
             to  it a written undertaking not to  exercise any lien on the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established by  the  Ship Mortgage  Act and  any other  pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid  and enforceable first and  preferred lien  upon the
             Rig and  promptly to  furnish to  the Trustee from  time to  time
             such proof as the Trustee may  request for its satisfaction  with
             respect to the  Owner's compliance  with the  provisions of  this
             sub-clause;

       (p)   place,  and use  due diligence  to retain,  a properly  certified
             copy  of this Mortgage on board the Rig with her papers and cause
             such  certified copy of this Mortgage  to be exhibited to any and
             all persons having  business with the  Rig which might  give rise
             to any lien thereon other  than a lien for crew's  wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and  in the  master's cabin  of  the Rig  a  framed printed
             notice in  plain type in English of  such size that the paragraph
             of reading matter  shall cover  a space  not less  than 6  inches
             wide and 9 inches high reading as follows:-

                                       "NOTICE OF MORTGAGE

             This Rig is covered by a  First Preferred Mortgage to  WILMINGTON
             TRUST COMPANY  not  in  its  individual capacity  but  solely  as
             Trustee  for  the  Banks  defined  in  the  said  Mortgage  under
             authority of  the  United  States Ship  Mortgage  Act,  1920,  as
             amended, recodified  as 46  U.S.C.  31301 et.  seq.   Under  the
             terms of the  said Mortgage neither  the Owner nor  any charterer
             nor the master of  this Rig nor any  other person has any  right,
             power or authority  to create, incur or permit to be imposed upon
             this  Rig  any  lien  whatsoever  other  than  for  crew's wages,
             general average and salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)  any Environmental Claim  which could reasonably be  expected
                  to result in damages in  excess of US$200,000 being or  made
                  against the Owner, or otherwise  in connection with the Rig;
                  or

             (ii) any Environmental Incident occurring, and  keep the  Trustee
                  advised, in writing on such regular basis and in such detail
                  as the Trustee shall  require, of the  Owner's  response  to
                  such  Environmental  Claim or  Environmental Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by the  Credit  Agreement) without  the  written consent  of  the
             Trustee  having first been obtained, and any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to  be a waiver of  this provision with respect  to any
             subsequent proposed sale, mortgage  or transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the lien  it creates.   The Owner shall not  charter
             the Rig to, or permit  the Rig to serve under any  contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or  "specially designated national"
             of  a "designated foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury  Department, 31 C.F.R. Parts 500  and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity" in  the  Libyan
             Sanctions Regulations of  the United States  Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of the  Government of Iraq" or "Iraqi  Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified at  31 C.F.R. Part  575, as amended,  all within  the
             meaning    of   said   Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter any Cuban  port for any purpose or engage  in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision  of   the  Iranian   Transactions
             Regulations, 31 C.F.R.  Part 560, as amended,  the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or violation  would (i)  expose the  Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary to law,  shall not abandon  the Rig in  a foreign  port,
             shall not  engage in  any unlawful  trade or violate  any law  or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or  capture, and  shall not do,  or suffer or  permit to be done,
             anything which can or may injuriously  affect the registration or
             enrollment of  the Rig under  the laws of  the United  States and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound)  at any time and  as often as may  be necessary to  take any
       such action  as it  may in  the reasonable  exercise of its  discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created  by this Mortgage  and the  other Credit  Documents (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:-

       (a)   if the Owner  does not comply with the  provisions of Clause 6 or
             any  of them  the  Agent shall  be  entitled (but  not bound)  to
             effect  or to replace  and renew and  thereafter to  maintain the
             Insurances in such manner  as in its discretion it may  think fit
             and to  require that all  policies, contracts  and other  records
             relating   to   the   Insurances  (including   details   of   any
             correspondence  concerning   outstanding  claims)   be  forthwith
             delivered  to such  brokers  as the  Agent  may  nominate and  to
             collect, recover, compromise and  give a  good discharge for  all
             claims  then  outstanding   or  thereafter   arising  under   the
             Insurances or  any  of them  and to  take over  or institute  (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection therewith as the Agent in its absolute discretion  may
             think fit and to permit the  brokers through whom the  collection
             or  recovery is effected to charge  the usual brokerage therefor;
             and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but  not bound) to arrange for the carrying out of such
             repairs to  and/or surveys of  the Rig as  it deems  expedient or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or  any of them  the Trustee  shall be entitled  (but not
             bound)  to  pay  and  discharge  all   such  debts,  damages  and
             liabilities  and  all  such  tolls,   dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND TRUSTEE'S POWERS

9.01   Upon the  happening of any  of the Events of  Default specified  in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration  in any jurisdiction to the effect that an Event of Default
       has occurred (and whether prior to  or after the Required Banks  having
       served on the Owner any such notice  as is referred to in Section  9 of
       the  Credit Agreement) the security constituted  by this Mortgage shall
       become immediately  enforceable and the  Trustee shall be entitled,  as
       and when it may see fit, to  put into force and exercise all or any  of
       the powers possessed by it as mortgagee of the Rig or otherwise and  in
       particular:-

       (a)   to  exercise  all  the rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to take possession of the Rig  whether actually or constructively
             and/or otherwise to take control of the  Rig wherever the Rig may
             be and cause the Owner  or any other person in possession  of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal  process and without  liability of the Trustee  for
             any  losses  or damages  incurred thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure  that  the Agent  collect, recover,  compromise  and give
             good discharge for any and  all moneys or claims for  moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection or recovery is effected to  charge the usual brokerage
             therefor;

       (e)   to take over  or institute (if  necessary using  the name of  the
             Owner)  or, to  the extent  lawful, procure  that the  Agent take
             over or  institute all  such proceedings  in connection with  the
             Rig,  the  Insurances, or  any  Requisition  Compensation as  the
             Trustee in its  absolute discretion thinks fit  and to discharge,
             compound,  release  or compromise  claims  against  the Owner  in
             respect  of the  Rig which  have given  or may  give rise  to any
             charge or lien on the  Rig or which are or may  be enforceable by
             proceedings against the Rig;

       (f)   to  sell  the Rig  or  any share  therein with  or  without prior
             notice to the  Owner free from any  claim of or  by the Owner  of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or all of the purchase price be deferred)  as the Trustee in
             its absolute discretion may determine with power to postpone  any
             such  sale, without being answerable  for any  loss occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to purchase  the Rig at  any such public auction  and to  set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for the purposes aforesaid the Trustee  shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting the Rig,  and the insurance,  management, maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in  all respects as if the Trustee were  the owner of the Rig and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as  may be  incurred  by  the  Trustee in  or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental  to the  exercise  by  it  of any  of  the  powers
             aforesaid.

9.02   The  Trustee shall not be obliged to make  any enquiry as to the nature
       or  sufficiency of any payment received by it under this Mortgage or to
       make any  claim, take  any action  or enforce any  rights and  benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors, nor their  agents, managers, officers,
       employees,  delegates and  advisers shall  be liable  for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection with  the  exercise or  purported  exercise of  any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall  not by reason of the taking possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or  be liable for any loss upon  realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any sale  of the  Rig or  any share  therein by  the  Trustee the
       purchaser shall  not be bound  to see or enquire  whether the  power of
       sale  of the Trustee has arisen in the manner provided in this Mortgage
       and the sale shall be deemed to be within the  power of the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge the  purchaser who shall not be concerned  with the manner of
       application  of the  proceeds  of  sale or  be  in any  way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  All moneys received by  the Trustee (or any other Secured  Creditor, as
       the case  may be) in respect of sale of the Rig or any part thereof, in
       respect of recovery under the Insurances  or in respect of  Requisition
       Compensation, shall be applied in the following manner:-

       (i)   first, to the  payment of all  amounts owing the  Trustee of  the
             type described in clauses (ii) and (iii) of Recital E;

       (ii)  second,  to  the  extent  moneys  remain  after  the  application
             pursuant  to the  preceding clause  (i), an  amount equal  to the
             outstanding  Obligations shall  be paid to  the Secured Creditors
             as  provided  in  Clause  10.01(c), with  each  Secured  Creditor
             receiving an amount equal to  such Obligations held by it or,  if
             the  proceeds  are   insufficient  to  pay  in   full  all   such
             Obligations, its Pro Rata  Share (as defined below) of the amount
             remaining to be distributed; and

       (iii) third,  to  the  extent  moneys  remain   after  the  application
             pursuant to  the preceding  clauses (i)  and (ii), and  following
             the  termination of  this Mortgage  pursuant to  Clause 3.01, any
             surplus  then remaining  shall  be paid  to  the Owner,  subject,
             however, to the  rights of the holder  of any then  existing Lien
             of which the Trustee has actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then  unpaid amount of such Obligations owing  to or held by such
             Secured  Creditor  and  the denominator  of  which  is  the  then
             outstanding amount  of  all such  Obligations.   For purposes  of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee  shall be  entitled to request  each Secured  Creditor to
             furnish it with written  notice of the amount of Obligations then
             owed  to it  and  shall be  entitled  to reply  upon  the amounts
             stated therein in making such distribution.

       (c)   All  payments required to be made  to Secured Creditors hereunder
             shall be made  to the Agent  under the  Credit Agreement for  the
             account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i)  the Agent under  the Credit Agreement  and (ii)  the Secured
             Creditors for  a determination (which the  Agent and each Secured
             Creditor,  by their acceptance of  the benefits  of this Mortgage
             shall  be obligated to  provide upon request  of the  Trustee) of
             the  outstanding  Obligations  owed  to  the  Secured  Creditors.
             Unless it  has  actual knowledge  (including  by way  of  written
             notice from a Secured  Creditor) to the contrary, the Agent under
             the Credit Agreement, in  furnishing information pursuant to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be  entitled  to  assume  that  (x)  no  obligations  other  than
             principal, interest and regularly accruing fees are owing to  any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:-

       (a)   perfecting or protecting the security created (or  intended to be
             created) by this Mortgage; or

       (b)   preserving  or protecting any  of the rights  of the  Trustee and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the  security constituted by this  Mortgage and the
             covenants and obligations  of the Owner under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner, by  way of security  and in order  more fully to  secure the
       performance   of  the  Obligations,  hereby  irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:-

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in  its name all documents which  the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage  shall have  become immediately  enforceable pursuant to
             Clause 9.01; and

       (b)   executing,   signing,   perfecting,  doing   and   (if  required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of such power as is  referred to in Clause 12.01(a) by  or
       on behalf  of the Trustee  shall not  put any  person dealing with  the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable  nor shall  such person  be in  any way  affected by notice
       that  this Mortgage has not become enforceable and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by the  Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:-

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on  the release  of the  Rig from  the security  created by  this
             Mortgage,

       and each of the Secured  Creditors and each such agent or  attorney may
       retain and pay all  sums in respect of  the same out of money  received
       under  the powers  conferred  by  this  Mortgage.    All  such  amounts
       recoverable by such Secured Creditors or  such agent or attorney  shall
       be recoverable on a full indemnity basis.

13.02  Without limiting the  foregoing Clause 13.01, the  Owner hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers, directors,  employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable  attorneys'   fees   and   expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of them,  by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal  injury (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;  (c)   any  Environmental  Claim   brought  or
       threatened,  or  settlement  reached; or  (d)  any  violation of  laws,
       orders, regulations, requirements  or demands of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If,  under any applicable law or  regulation, and whether pursuant to a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or for  any  other  reason,  any  payment under  or  in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than the currency in which  such payment is due under or  in connection
       with this Mortgage  (the "contractual  currency"), then  to the  extent
       that  the amount of such payment actually received by the Trustee, when
       converted into the contractual  currency at the rate of exchange, falls
       short of the amount due  under or in connection with this Mortgage, the
       Owner, as  a separate  and independent obligation,  shall indemnify and
       hold  harmless the Trustee  against the amount of  such shortfall.  For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which the Trustee is able on the date of such payment  (or, if it is
       not  practicable for  the Trustee to  purchase the contractual currency
       with the  payment currency on the date of  such payment, at the rate of
       exchange  as soon  afterwards as is  practicable for the  Trustee to do
       so) to purchase the  contractual currency with the payment currency and
       shall take into account  any premium and  other costs of exchange  with
       respect thereto.

14.    EXPENSES

14.01  The Owner shall pay to  any Secured Creditor on demand all  costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:-

       (a)   the  negotiation,   preparation  and  execution  of   the  Credit
             Agreement, the Subsidiary Guaranty  and the Credit Documents  (or
             any of them); and/or

       (b)   the preserving  or enforcing  of,  or attempting  to preserve  or
             enforce,  any  of  its rights  under  the  Credit  Agreement, the
             Subsidiary Guaranty or the Credit Documents (or any of them).

14.02  The Owner shall pay  to the Trustee and the Agent on  demand all costs,
       fees  and expenses  (including,  but not  limited  to,  legal fees  and
       expenses)  and Taxes  thereon  incurred  by  any  Secured  Creditor  in
       connection with:-

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms  of the  Credit Agreement, the  Subsidiary Guaranty  or the
             Credit  Documents  (or  any of  them)  requested  by  the  Owner,
             necessary  or advisable  under applicable law  or relating to the
             syndication of the Facility,  or initiated during the  occurrence
             and continuation of an Event of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the  Credit  Agreement, the  Subsidiary Guaranty  and  the Credit
             Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty and the Credit  Documents (or any of  them) may be subject  or
       give rise  and shall indemnify  the Trustee on  demand against any  and
       all  liabilities with  respect  to  or  resulting  from  any  delay  or
       omission on the part of the Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to  the Trustee hereunder shall be in  writing and shall be
       made to the following address:

                   Wilmington Trust Company
                   Rodney Square North
                   1100 North Market Street
                   Wilmington, DE  19890-0001
                   Telefax:  (302) 651-8882
                   Attention: Corporate Trust Division

                   With a copy to:

                   Jennifer L. Janss, Esq.
                   Richards, Layton & Finger
                   P.O. Box 551
                   Wilmington, DE  19899

       All  other  notices shall  be made  to  the addresses  provided  for in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors and  permitted assigns  and references in  this Mortgage  to
       any of them shall be construed accordingly.

16.02  The Owner may  not assign  or transfer all  or any part  of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to Section 12.16  of the Credit  Agreement, each Bank has  the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations under the Credit  Agreement on the terms  therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The total amount of  this Mortgage is One Hundred Million  U.S. Dollars
       (US$100,000,000)  of  principal  plus interest,  fees,  commissions and
       performance of mortgage  covenants.  The  discharge amount is  the same
       as the total amount.

18.    MISCELLANEOUS

18.01  If at any time  any one or more  of the provisions in this  Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability of  the
       remaining provisions of this  Mortgage shall not be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time  and from time to time, may delegate  by power
       of attorney or in any other manner to any person or persons all or  any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such delegation  may be made upon such terms  and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in any way  liable or responsible to the  Owner for any loss  or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for in this Mortgage shall, in the absence of  manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The Owner agrees that the  Trustee shall have the liberty but shall not
       be obliged  to take any  proceedings in  the courts  of any country  to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose of any  proceedings for such enforcement the  Owner
       hereby submits to the jurisdiction of the courts of  any country of the
       choice of the Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place the Rig shall be  found lying and for  the purpose of any  action
       which the Trustee may  bring before the courts of such  jurisdiction or
       other judicial authority  and for the purpose  of any action which  the
       Trustee may bring against the Rig, any writ, notice, judgment  or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner  agrees that  should  the Trustee  bring a  legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out of  or in connection with  this Mortgage, no  immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without  limitation,   suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be  claimed by or on  behalf of the Owner or  with respect of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby consents  generally in respect of any legal  action or
       proceedings  arising out of or in  connection with this Mortgage to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made or given in  such
       action or proceedings.

IN WITNESS  whereof the Owner has caused this Mortgage to be  executed the day
and year first before written.


READING & BATES EXPLORATION CO.


By_____________________________________
  Its:



                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )

On this 30th day of April, 1996 before me personally appeared  ____________ to
me known  who being by me  duly sworn did  dispose and say that  he resides at
_________________________________, that he is ____________________________ for
READING  &  BATES EXPLORATION  CO.,  the corporation  described  in and  which
executed the  foregoing instrument;  and that  he signed  his name  thereto by
order of the Board of Directors of READING & BATES EXPLORATION CO.


                                                  _____________
                                                  Notary



                                                            Exhibit 10.91     


                       INDENTURE OF FIRST NAVAL MORTGAGE


                  READING AND BATES BORNEO DRILLING CO., LTD.

                                    - and -

                    CHRISTIANIA BANK OG KREDITKASSE, agent

                                 as Mortgagee


                                CHARLEY GRAVES

                             Dated April 30, 1996

==============================================================================

                                     INDEX

CLAUSE      SUBJECT MATTER                                                PAGE

  1         REPRESENTATIONS AND COVENANTS . . . . . . . . . . . . . . . . . 2 
  2         DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 4 
  3         MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
  4         PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
  5         PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
  6         INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
  7         RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
  8         PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
  9         ENFORCEABILITY AND MORTGAGEE'S POWERS . . . . . . . . . . . .  18 
  10        APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
  11        FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
  12        POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
  13        INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
  14        EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
  15        COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
  16        ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
  17        TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
  18        WAIVER; AMENDMENT . . . . . . . . . . . . . . . . . . . . . .  25 
  19        MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
  20        JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

EXHIBIT 1   FORM OF CREDIT AGREEMENT
EXHIBIT 2   FORM OF SUBSIDIARY GUARANTY

==============================================================================

       THIS INDENTURE OF FIRST NAVAL MORTGAGE made and entered into this  30th
day of  April, 1996, between READING  AND BATES BORNEO DRILLING  CO., LTD., an
Oklahoma  company duly constituted and existing in conformity with the laws of
the State  of Oklahoma with  its principal  office at 901  Threadneedle, Suite
200, Houston,  Texas  77079  (hereinafter called the "Owner")  and CHRISTIANIA
BANK OG  KREDITKASSE, NEW YORK BRANCH  having offices at 11  West 42nd Street,
New  York,  NY  10036,  as  agent  for  the  Banks  (as  hereinafter  defined)
(hereinafter called the "Mortgagee"), on  the Panamanian offshore drilling rig
CHARLEY  GRAVES of  5,829 gross  tons, 1,748  net tons  and with  a  length of
87.78m, a  breadth of 21.34m  and a  depth of  6.55m and  Permanent Patent  of
Navigation  No. 6618-76-CH  (hereinafter  called the  "Rig"), duly  registered
under the laws and flag of the Republic of Panama, the detailed description of
which is hereinafter more particularly set forth.

                             W I T N E S S E T H :

WHEREAS

(A)    The Owner is the sole owner of  the whole of the offshore drilling  rig
       CHARLEY GRAVES documented under  the laws and flag  of the Republic  of
       Panama.

(B)    By a  Credit Agreement dated  as of April 30,  1996 (as in  effect from
       time   to  time,  the  "Credit   Agreement")  among   Reading  &  Bates
       Corporation,  a  Delaware   corporation,  as  guarantor   ("Holdings"),
       Reading   &  Bates   Drilling  Co.,   an   Oklahoma  corporation   (the
       "Borrower"), the Banks party thereto, Credit Lyonnais New  York Branch,
       as  co-agent and  the  Mortgagee, as  agent (the  form of  which Credit
       Agreement together  with the  form of promissory  note of the  Borrower
       attached as  Exhibit B  thereto but without  the remaining exhibits  is
       attached hereto as Exhibit 1),  it was agreed amongst other things that
       the Banks  would make  available to the  Borrower a reducing  revolving
       credit facility  (the "Facility")  in the  maximum aggregate  principal
       amount  at any  one  time outstanding  of  One Hundred  Million  United
       States Dollars  (U.S.$100,000,000), providing for  the making of  Loans
       and  the  issuance  of  and participations  in  Letters  of  Credit  as
       contemplated therein.   As required  by Article 1515  Section 3 of  the
       Commercial Code of Panama, the dates on which  payments of principal in
       respect of the Loans are due  may be determined from the provisions  of
       the Credit Agreement including Section 3.03.

(C)    The  obligations of  the  Borrower with  respect  to the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the promissory notes of the Borrower payable to  the order of
       the respective  Banks (each  a "Note"  and, collectively,  the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed   and  delivered  a   Subsidiary  Guaranty   (the  "Subsidiary
       Guaranty"), the form  of which  Subsidiary Guaranty is  attached hereto
       as Exhibit  2, in favor  of the  Agent guaranteeing the  performance by
       the Borrower  of its  obligations under  the Credit  Agreement and  the
       other Credit Documents.

(E)    This Mortgage is  made for the benefit  of the Mortgagee to  secure the
       guaranty by the  Owner of (i) the  full and prompt payment when  due of
       (x)  the principal of  interest on  the Notes  issued, and  Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect to the Letters  of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of  the Borrower  to  the Secured  Creditors  (as hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in  connection with the Credit Agreement and the other Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by the  Borrower with  all  of the  terms,
       conditions and  agreements contained in  the Credit  Agreement and  the
       other  Credit Documents including,  without limitation,  this Mortgage;
       (ii) any and  all sums advanced by  the Mortgagee in order  to preserve
       the  Collateral  (as  hereinafter defined)  or  preserve  its  security
       interest in  the Collateral; (iii) in  the event of any  proceeding for
       the  collection or  enforcement of  any  indebtedness, obligations,  or
       liabilities of the  Borrower referred to in clause  (i) above, after an
       Event of Default shall have occurred and  be continuing, the reasonable
       expenses of the Mortgagee of re-taking, holding,  preparing for sale or
       lease,  selling  or  otherwise   disposing  of  or  realizing   on  the
       Collateral,  or  of  any  exercise  by  the  Mortgagee  of  its  rights
       hereunder, together with  reasonable attorneys' fees of counsel  to the
       Mortgagee  and court costs; and (iv) all amounts paid by any Indemnitee
       as  to which  such  Indemnitee has  the  right to  reimbursement  under
       Clause  13 of  this Mortgage (all  such obligations,  liabilities, sums
       and  expenses referred  to  in clauses  (i)  through (iv)  above  being
       collectively  referred to  as the  "Obligations").   It is acknowledged
       and agreed that  the "Obligations"  shall include extensions  of credit
       of the types described above,  whether outstanding on the date  of this
       Mortgage  or extended  from  time  to  time  after  the  date  of  this
       Mortgage.

(F)    This Indenture  of First Naval  Mortgage, which is entered  into by the
       Owner  in consideration  of the  Banks agreeing  to  make the  Facility
       available to  the Borrower and  as a  condition thereto  and for  other
       good and valuable consideration provided by the  Banks (the sufficiency
       of which the Owner hereby acknowledges).

NOW, THEREFORE, the  appearing parties, each in the name and  on behalf of his
respective principal, state  that they hereby execute this  Indenture of First
Naval Mortgage pursuant to the following representations:

1.     REPRESENTATIONS AND COVENANTS

1.01   The Owner represents and covenants to the Mortgagee that:

       a.    The Rig is  permanently registered in  the name of  the Owner  in
             the Public Registry of the City of  Panama, Republic of Panama in
             the  Microfilm Section  (Mercantile),  Microjacket N-12808,  Roll
             34425, Frame 95;

       b.    The Owner,  as sole legal  and beneficial owner  of the  Rig, has
             received   and  presently   possesses  a   Permanent  Patent   of
             Navigation for  the Rig,  duly issued by  the Republic of  Panama
             under No. 6618-76-CH;

       c.    Neither  the whole nor  any share  in the  Rig is subject  to any
             Security  Interest  (as defined  herein)  (except  for  Permitted
             Liens (as defined herein) and the lien of this Mortgage);

       d.    the Owner  has not  sold  or transferred,  or agreed  to sell  or
             transfer, title to the Rig or any share therein;

       e.    the Owner is  a corporation  duly organized and  validly existing
             and in good standing under the laws of the State of Oklahoma;

       f.    the  Owner  has full  power  and  authority (i)  to  execute  and
             deliver this Mortgage,  (ii) to mortgage the Rig as  security for
             the Obligations and  (iii) to comply with the provisions  of, and
             perform all its obligations under, this Mortgage;

       g.    the  Owner has  complied with  all  statutory and  other material
             requirements  relative   to  the   ownership,  registration   and
             operation of the Rig;

       h.    the  Owner  has  taken  all  necessary  action  to authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the legal,  valid  and  binding obligation  of  the
             Owner enforceable against the Owner in accordance  with its terms
             (except   to  the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency, moratorium  or other laws of  general
             application  relating   to  or  affecting   the  enforcement   of
             creditors' rights  as from  time to  time in  effect and  general
             equitable principles)  and when  preliminarily recorded with  the
             Public Registry  in Panama  through the  Panamanian Consulate  in
             New York,  New York  will create a  legal, valid and  enforceable
             first preferred  mortgage lien  on the  Rig subject  only to  the
             permanent  filing  of this  Mortgage  in the  Public  Registry in
             Panama within six months of the date  of the preliminary recorded
             filing;

       i.    the entry  into and  performance by  the Owner  of this  Mortgage
             does  not and  will not  during the  Credit  Facility Period  (as
             defined herein) violate in any respect (i)  any law or regulation
             of any  governmental or official authority  or body, or  (ii) any
             of  the  constitutive  documents  of   the  Owner  including  the
             Certificate of Incorporation or By-laws, as amended  from time to
             time,  or  (iii)  any  material   agreement,  contract  or  other
             undertaking to  which the  Owner is a  party or which  is binding
             upon the Owner or any of its assets;

       j.    all consents, licenses, approvals and authorizations  required in
             connection  with  the   entry  into,  performance,  validity  and
             enforceability   of   this   Mortgage    and   the   transactions
             contemplated hereby  and thereby  have been  obtained and are  in
             full  force and  effect  and will  be  so maintained  during  the
             Credit Facility Period;

       k.    save for  such registrations  and filings as  are referred to  in
             this Mortgage,  it is not  necessary for the legality,  validity,
             enforceability  or  admissibility  in evidence  of  this Mortgage
             that it or any  document relating  thereto be registered,  filed,
             recorded or enrolled with any court or  authority in any relevant
             jurisdiction or that any stamp, registration  or similar taxes be
             paid on or in relation to this Mortgage;

       l.    the  Owner is  in compliance  with  all applicable  Environmental
             Laws (as defined  herein) relating to the Rig, its  operation and
             management;

       m.    the Owner  has obtained all  Environmental Approvals (as  defined
             herein) and is in compliance with all requests thereof;

       n.    no  Environmental  Claim (as  defined  herein) has  been  made or
             threatened against the Owner or otherwise in connection with  the
             Rig;

       o.    no   Environmental  Incident   (as  defined   herein)  which  has
             resulted, or which could reasonably be expected  to result, in an
             Environmental Claim in excess of US$200,000 has occurred; and

       p.    The Owner  hereby  affirms  as  its representations  all  of  the
             statements contained in the "WHEREAS" clauses of this Mortgage.

1.02   The representations and warranties of the Owner  set out in Clause 1.01
       shall survive the execution  of this Mortgage and shall be deemed to be
       repeated at the time  of the  making of each  Loan (as defined  herein)
       and at the time  of the issuance of each Letter of Credit, with respect
       to the facts and circumstances existing  at each such time, as if  made
       at each such time.

1.03   The  Mortgagee  represents  that  the  Banks  have  made  the  Facility
       available to  the Borrower,  as evidenced  by, inter  alia, the  Credit
       Agreement, the  Notes and the  Security Documents (as defined  herein),
       and accepts  the Mortgage constituted by  this instrument upon  the Rig
       as  security for  the due  and prompt  payment  and performance  of the
       obligations of the Owner under the Subsidiary Guaranty.

1.04   Each of the contracting parties declares that it is  satisfied with the
       representations and  covenants made  by the other  and accepts them  as
       true;  and the  parties  mutually  acknowledge their  respective  legal
       status  as well  as  the authority  of  the persons  representing  them
       respectively in  this instrument to  sign the same  on behalf of  their
       respective principals.

2.     DEFINITIONS AND INTERPRETATION

2.01   In this Mortgage unless  the context otherwise requires, the  following
       expressions shall have the following meanings:-

       "Agent" shall have the  same meaning for such term as  set forth in the
       Credit Agreement;

       "Bank" means  any lender listed  from time to  time on  Annex 1 to  the
       Credit Agreement (collectively, the "Banks");

       "Collateral Assignment  of Insurances" means  the Collateral Assignment
       of Insurances in respect of the  Rig executed or to be executed by  the
       Owner in favor of the Agent;

       "Commitment" shall have the same meaning for such  term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the Credit Agreement,  dated as of  April 30,
       1996,  among Holdings,  the Borrower,  the Banks,  Credit Lyonnais  New
       York Branch, as  co-agent, and the Agent  first referred to in  Recital
       (B) hereto;

       "Credit Documents"  shall have the meaning  for such term  as set forth
       in the Credit Agreement;

       "Credit Facility Period"  shall mean the period commencing on  the date
       hereof and  ending on the date  the Total Commitments  have terminated,
       no  Letters  of  Credit remain  outstanding  and  the  Unpaid  Drawings
       together with  interest, fees  and all  other obligations  are paid  in
       full;

       "Credit Party"  shall have the same meaning for  such term as set forth
       in the Credit Agreement;

       "Default  Rate"  shall  mean   the  rate  of  interest  calculated   in
       accordance with Section 1.07(b) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal reports  prepared  by  Holdings  or any  of  its  Subsidiaries
       solely in  the ordinary  course of  such Person's business  and not  in
       response  to  any  third  party  action or  request  of  any  kind)  or
       proceedings relating in any way to any Environmental Law or  any permit
       issued,  or  any  approval  given,  under any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable Environmental  Law, and  (b)  any and  all
       Claims   by   any    third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;
       "Environmental  Incident"  means (i)  any  release  of  Environmentally
       Sensitive  Material  from  the   Rig,  (ii)   any  incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and which  involves collision  between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or otherwise liable (in whole  or in part) or (iii) any  incident
       in  which Environmentally Sensitive Material is  released from a vessel
       other than the Rig and where the Rig  is actually or potentially liable
       to  be arrested  as  a result  and/or where  the  Owner is  actually or
       allegedly  at  fault or  otherwise  liable  (and, in  each  such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking,  leaching,  dumping,  emitting,  escaping, emptying,  seeping,
       placing and  the  like, into  or upon  any  land or  water  or air,  or
       otherwise entering into the environment);

       "Environmental  Laws"   means   all   applicable   laws,   regulations,
       conventions  and  agreements  whatsoever   relating  to  pollution   or
       protection of the  environment (including, without limitation,  the Oil
       Pollution Act of  1990 (33 U.S.C.   2701  et seq.), the  Comprehensive
       Environmental Response,  Compensation, and  Liability Act  of 1980  (42
       U.S.C.  9601 et seq.), the Hazardous  Materials Transportation Act (49
       U.S.C.  1801 et seq.),  the Resource Conservation and Recovery Act  of
       1976 (42  U.S.C.  6901 et seq.),  the Clean Air Act  (42 U.S.C.  7401
       et seq.), the Federal  Water Pollution Control Act (33 U.S.C.  1251 et
       seq.) and  the Toxic Substances Control Act (15  U.S.C.  2601 et seq.)
       (all  of the  foregoing as  amended), and  any comparable  laws  of the
       individual States  of the United States  of America or any  other state
       or nation);

       "Fees" shall have  the same meaning for  such term as set  forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials,  asbestos in  any form that  is or could  become
       friable,  urea  formaldehyde  foam insulation,  transformers  or  other
       equipment  that   contained,  electric  fluid   containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or included  in the definition  of "hazardous
       substances,"  "hazardous  waste,"  "hazardous   materials,"  "extremely
       hazardous waste,"  "restricted  hazardous waste,"  "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental  Law; and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression  includes  all  entries  of the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to time  taken  out  or
       entered into in respect  of the Rig or otherwise by  the Owner (whether
       in the sole name  of the Owner or  in the joint names of the  Owner and
       the  Agent) and all  benefits thereof  (including claims  of whatsoever
       nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for  such term as  set
       forth in Section 1.08 of the Credit Agreement;

       "Letter of Credit" shall  have the  same meaning for  such term as  set
       forth in Section 2.01 of the Credit Agreement;

       "Loan(s)" shall have the  same meaning  for such term  as set forth  in
       the Credit Agreement;

       "Major Casualty"  means any casualty to the Rig  in respect whereof the
       claim  or the  aggregate of  the claims  against  all insurers,  before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note"  means each  promissory  note of  the  Borrower referred  to  in
       Recital (C) hereto and in Section 1.05(c) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (C) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution  Act 1990 (33  U.S.C.
       2701 et seq.), as amended;

       "Other Rigs"  means,  individually or  collectively,  each of  (i)  the
       offshore rig  JACK BATES  documented under  the  laws and  flag of  the
       United States  of America with Official  Number 906283 of  19,928 gross
       registered tons and  14,948 net registered tons; (ii) the  offshore rig
       D.  R.  STEWART  owned  by  Reading  &   Bates  Exploration  Co.  ("R&B
       Exploration") documented under  the laws and flag of the  United States
       with Official  Number 626904 of 6,494  gross registered tons  and 5,834
       net  registered tons; (iii) the offshore  drilling rig W. D. KENT owned
       by  R&B  Exploration  documented  under  the  laws   and  flag  of  the
       United States with  Official Number  583169 of  5,383 gross  registered
       tons and 4,185 net registered tons; (iv) the offshore  drilling rig RON
       TAPPMEYER owned by  Reading & Bates  (A) Pty Ltd. documented  under the
       laws and flag of Australia with Official  Number 855213 of 11,455 gross
       registered tons  and 3,436  net registered tons;  and (v) the  offshore
       drilling J.W.  McLEAN owned by the  Borrower documented under  the laws
       and flag of  the Bahamas with Official  Number 715954 of 9199.01  gross
       registered tons and 7267.22 net registered tons;

       "Permitted Liens"  means: (1)  liens  incident to  expenses of  current
       operations, other than  for master's and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being  contested in good faith, provided
       such  liens are  not in excess  of U.S.$5,000,000.00, and  if in excess
       thereof, then  the Owner shall, upon the  written request of the Agent,
       provide  a bond or other security satisfactory to the Agent); (2) liens
       for master's and  crew's wages not yet  due and payable; (3)  liens for
       taxes, assessments,  governmental charges, fines  and penalties not  at
       the  time delinquent (unless  being contested  in good  faith, provided
       such liens  are not  in excess of  U.S.$5,000,000.00, and if  in excess
       thereof, then the  Owner shall, upon the written  request of the Agent,
       provide a  bond or other security satisfactory to the Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for  claims covered  by valid policies  of insurance meeting  the
       requirements of Clause  6 hereof (except that  no lien shall be  deemed
       not covered  by insurance to the extent  insurance in force would cover
       the  amount secured  by  the lien  but  for any  applicable  deductible
       amount  approved by  the  Agent); (6)  liens  arising pursuant  to  any
       judgment  or to  an order  of attachment,  distraint  or similar  legal
       process arising in  connection with legal proceedings, but only  if and
       so  long as the execution or  other enforcement thereof is not unstayed
       for more  than 30  consecutive days; (7)  any lien  for the payment  or
       discharge of which provisions satisfactory to the  Agent have been made
       as evidenced by the Agent's written consent to such lien; (8) any  lien
       in favor  of the  Banks; and  provided that Permitted  Liens shall  not
       include any liens described in subclauses (1)  through (7) above unless
       they:  (i)  are  subordinate  to  the lien  of  this  Mortgage  or (ii)
       constitute a maritime  lien which  would in  any event  be entitled  as
       such to  priority over  the Mortgage under  the United States  shipping
       laws or  other applicable laws relating  to the Rig's  trading pattern.
       Nothing herein shall be deemed a waiver  of the priority preferred lien
       status of this Mortgage;

       "Protection  and indemnity  risks"  means the  usual  risks covered  by
       protection  and   indemnity   associations  of   international   repute
       including  the proportion not  recoverable in  case of  collision under
       the ordinary running-down  clause (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Required Banks" shall have  the meaning for such term as  set forth in
       the Credit Agreement;

       "Requisition Compensation"  means  all  moneys  or  other  compensation
       payable during the Credit Facility Period by  reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means  the vessel  described in Recital  (A) hereto and  includes
       any share  or  interest  therein  and her  engines,  machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and  appurtenances whether  on board or  ashore and  whether
       now owned  or hereafter  acquired (but  excluding therefrom any  leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Banks, the Letter of  Credit Issuer
       and the Agent under and as defined in the Credit Agreement;

       "Security Documents" shall have  the same meaning for such term  as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating), pledge, lien, hypothecation, assignment,  trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Subsidiary Guaranty" means  the agreement dated  as of April  23, 1996
       made by  the  Owner in  favor of  the  Agent as  first referred  to  in
       Recital (D) hereto;

       "Taxes" shall  have the same meaning for such  term as set forth in the
       Credit Agreement;

       "Total Commitment"  shall have the  same meaning for  such term  as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive, arranged,  agreed, or
       compromised total  loss of the  Rig; (b)  the requisition for  title or
       other compulsory acquisition  or forfeiture  of the Rig  otherwise than
       by  requisition for hire; (c)  the capture,  seizure, arrest, detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting  to  act  on behalf  of  any  government unless  the  Rig be
       released from such capture, seizure, arrest or detention  within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing" shall  have the  same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard form  of  English marine  policy by  the free  of capture  and
       seizure clause.

2.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall bear the same meanings when used in this Mortgage.

2.03   In this Mortgage:-

       (a)   Clause headings are  inserted for convenience only  and shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified,  all references  to  Clauses are  to  clauses of  this
             Mortgage;

       (b)   unless  the  context   otherwise  requires,  words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

3.     MORTGAGE

3.01   In order  to secure the Obligations the Owner has granted, conveyed and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the  Mortgagee,  its successors  and  assigns, in  accordance  with the
       provisions  of Chapter  V,  Title IV  of  Book Second  of  the Code  of
       Commerce  and  pertinent  provisions  of  the   Civil  Code  and  other
       legislation of  the  Republic of  Panama,  the whole  of the  Rig,  the
       detailed description of which is as follows:

             offshore   drilling   rig    CHARLEY   GRAVES;   gross    tonnage
             approximately  5,829;  net  tonnage  approximately  1,748; length
             overall  87.78 meters,  breadth 21.34 meters;  depth 6.55 meters;
             built  in 1975 by  Far East  Livingston Shipbuilding  Ltd.; radio
             call letters HP-3275;

       TO  HAVE AND  TO HOLD the  same unto the  Mortgagee, its successors and
       assigns forever, upon  the terms herein  set forth for  the enforcement
       of the Obligations.

       PROVIDED  ONLY and the condition of these  presents is such that if the
       Owner  or its successors and assigns shall pay or cause to be repaid to
       the Secured Creditors and  their respective  successors or assigns  the
       Obligations  as  and when  the  same shall  become due  and  payable in
       accordance with the terms  of the Subsidiary Guaranty and this Mortgage
       and shall observe  and comply with  the covenants terms  and conditions
       contained in the  Subsidiary Guaranty  and this Mortgage,  expressed or
       implied to be  performed, observed or complied with by  and on the part
       of the  Owner and its  successors and assigns, then  these presents and
       the rights hereunder shall  cease, determine and  be void and, in  such
       event,  the Mortgagee  agrees to  furnish, execute  and record,  at the
       expense of the Owner, all  such documents as the Owner may   reasonably
       require to discharge this Mortgage, otherwise to  be and remain in full
       force and effect.

       Notwithstanding  anything to  the  contrary herein  it is  not intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of  this Mortgage  and that  if any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it  in relation to the  Rig and none of  the Secured Creditors shall
       be under  any obligation of any  kind whatsoever in respect  thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

3.03   This Mortgage,  when it shall  have been  duly executed  and signed  on
       behalf  of  the parties,  shall be  provisionally recorded  through the
       Panamanian Consulate at New  York, New York and thereafter within three
       months permanently recorded in the Public Registry in Panama.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured   Creditors  for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or  other moneys as  are stated  in this  Mortgage to  be
             payable by  the Owner  to or recoverable  from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or  other moneys referred to
             in  Clause 4.01(a) from  the date on  which the relevant expense,
             claim, liability, loss,  cost, duty,  fee, charge or  other money
             is  paid by  any  Secured Creditor  (both  before  and after  any
             relevant judgment) at the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing to  any Secured  Creditor, as the  case may be,  under this
             Mortgage  and the  Subsidiary Guaranty  at the  times and  in the
             manner specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:-

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Mortgagee  as a continuing  security for  the performance  of the
             Obligations and  that  the  security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way  be prejudiced or affected  by any of the  other Security
             Documents;

       (c)   the Mortgagee shall  not have to  wait for  the Agent to  enforce
             any  of  the  other  Security  Documents   before  enforcing  the
             security created by this Mortgage;

       (d)   no failure  or delay on  the part of the  Mortgagee in exercising
             any right, power, privilege  or remedy hereunder and no course of
             dealing between  Owner and Mortgagee  or the Agent shall  operate
             as a waiver thereof; nor  shall any single or partial exercise of
             any  right,  power, privilege  or remedy  hereunder  preclude any
             other or further  exercise thereof or  the exercise of  any other
             right, power  or privilege  hereunder.  The  rights and  remedies
             herein  expressly provided  are cumulative  and not  exclusive of
             any  rights or remedies  which the Mortgagee  or the  Agent would
             otherwise have.  No notice to or  demand on the Owner in any case
             shall entitle the Owner to any other or  further notice or demand
             in similar or other circumstances or  constitute a waiver of  the
             rights of the  Mortgagee or  the Agent  to any  other or  further
             action in any circumstances without notice or demand; and

       (e)   any waiver by the Mortgagee of any terms of  this Mortgage or any
             consent given by the  Mortgagee under this Mortgage shall only be
             effective if given  in writing and then only  for the purpose and
             upon the terms for which it is given.

5.02   Any settlement or  discharge under this Mortgage between  the Mortgagee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured  Parties or  any of  them by  the Credit  Parties or  any other
       person  being avoided or set-aside or ordered to be refunded or reduced
       by  virtue of  any  provision  or  enactment  relating  to  bankruptcy,
       insolvency, administration or  liquidation for the time being  in force
       and,  if  such  condition is  not  satisfied,  the  Mortgagee  shall be
       entitled  to  recover  from  the Owner  on  demand  the  value of  such
       security or  the amount of  any such payment as  if such  settlement or
       discharge had not occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby   constituted  shall  not  be  affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair, affect or  discharge such rights  and security, in whole  or
       in part, including without limitation, and  whether or not known to  or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:-

       (a)   any waiver granted to or composition  with the Credit Parties  or
             any other person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents or any other document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or   frustration   of  any
             obligations  of the Credit  Party or any  other person  under the
             Credit Agreement, any of  the other Credit Documents or any other
             document or security.

6.     INSURANCE

6.01   The Owner covenants with  the Mortgagee throughout the  Credit Facility
       Period that:-

       (a)   The Owner  shall, at its  own expense,  when and  so long as  any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured,  or cause the Rig to be  insured, in lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             Protection  and Indemnity  Risks,  pollution liability,  and  War
             Risks), in such form  (including without limitation, the  form of
             the loss payable  clause and the designation  of named  assureds)
             and  with such  first  class  insurance companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably satisfactory to the Agent.   With respect to hull  and
             machinery/increased  value  insurance,  including  war  risk, the
             Owner shall insure  the Rig and  keep her  insured, or cause  the
             Rig  to be  insured, for an  amount which is  at least the agreed
             value of  the Rig, and  when such amount  is aggregated with  the
             total amount of such insurance coverage  on the Other Rigs,  such
             aggregate amount shall be  at least 110% of the Total Commitment.
             Such insurance shall  cover marine and  war risk perils,  on hull
             and  machinery, with per occurrence  deductibles not in excess of
             US$500,000 (such deductibles  not to apply  in the case  of Total
             Loss of the Rig),  and shall be maintained in the  broadest forms
             available  in the  American, British  and Scandinavian  insurance
             markets or in such  other major international markets  acceptable
             to the  Mortgagee.    The  Owner shall  maintain  protection  and
             indemnity insurance, including  war risk protection and indemnity
             coverage and coverage against  pollution liability, in an  amount
             not  less  than US$100,000,000  (or,  with  respect to  pollution
             liability coverage, such greater  amount as may be at least equal
             from   time  to  time  to  the  limitation  of  liability  amount
             applicable to the Rig under the  Oil Pollution Act 1990 or  other
             Environmental  Laws),   through   underwriters  or   associations
             acceptable to the  Mortgagee.  In  addition, the Owner  shall, at
             its  own  expense, furnish  to  the  Agent a  mortgagee's  single
             interest policy  providing coverage which,  when aggregated  with
             the  mortgagee's  interest insurance  furnished to  the  Agent in
             respect  of the Other  Rigs, shall  be in an  amount equal  to at
             least  110%  of  the   Total  Commitment  (or  in  lieu  of  such
             mortgagee's  interest insurance  Owner shall  cause the  hull and
             machinery/increased  value insurance  to  be  endorsed to  afford
             breach of warranty coverage for the benefit of the  Agent).  Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies for  the benefit of the Agent shall be maintained in the
             broadest   form   available  in   the   American,   British   and
             Scandinavian  markets  or   other  major  international   markets
             acceptable  to the  Agent through underwriters  acceptable to the
             Agent.   The Rig shall  not operate  in or proceed  into any area
             then excluded by trading  warranties under its marine or war risk
             policies  (including protection and indemnity) without satisfying
             the conditions of the  relevant policies evidence of  which shall
             be furnished to the Mortgagee.

       (b)   The   policy  or  policies  of   insurance  shall  be  issued  by
             responsible  underwriters  reasonably  acceptable to  the  Agent,
             shall   contain  conditions,  terms,  stipulations  and  insuring
             covenants satisfactory to  the Agent, and  shall be kept  in full
             force and effect by the  Owner so long as the Security  Documents
             and  the Secured  Indebtedness  shall be  outstanding.   All such
             policies, binders and other interim insurance  contracts shall be
             executed and issued in  the name of the  Owner and shall, to  the
             extent required herein,  provide that the Mortgagee shall  be the
             loss payee  for distribution by it  to itself, the Banks  and the
             Owner  as their interests  may appear, and  shall provide  for at
             least ten days' prior notice  to be given to the Mortgagee by the
             underwriters or association  in the event of cancellation  or the
             failure of  the Owner  to pay  any premium  or  call which  would
             suspend coverage  under the  policy  or the  payment  of a  claim
             thereunder.  The  Mortgagee and the Banks  shall be named as  co-
             assureds  on  all  such  policies and  insurance  contracts,  but
             without liability of the  Mortgagee, or the Banks for premiums or
             calls.   Complete certified copies  of all such policies, binders
             and other interim  insurance contracts shall be  delivered to the
             Mortgagee.  Originals shall  also be provided upon the request of
             the  Mortgagee.    The  Owner  shall  furnish  to  the  Mortgagee
             annually a detailed report signed by  a firm of marine  insurance
             brokers  satisfactory  to  the  Mortgagee  as  to  the  insurance
             maintained in respect  of the Rig, as to their  opinion as to the
             adequacy  thereof and  as to  compliance with  the  provisions of
             this Clause 6.01.

             Unless otherwise  required by  the  Mortgagee, by  notice to  the
             underwriters, although the following insurance is  payable to the
             Mortgagee, (i)  any loss  under  any insurance  on  the Rig  with
             respect to Protection  and Indemnity Risks may  be paid  directly
             to the  Owner to  reimburse it  for any loss,  damage or  expense
             incurred  by it and covered by such insurance or to the person to
             whom any liability covered  by such  insurance has been  incurred
             and (ii) in the  case of any loss (other  than a loss covered  by
             (i) above  or by  the  next following  paragraph  of this  Clause
             6.01(b))  under any  insurance with respect  to the Rig involving
             any damage  to the Rig, the  underwriters may pay direct  for the
             repair, salvage or other  charges involved or, if the Owner shall
             have first  fully repaired  the  damage or  paid  the salvage  or
             other  charges,  may pay  the  Owner  as reimbursement  therefor;
             provided,  however,  that  if  such  damage   involves  a  before
             deductible  loss in  excess of US$1,000,000.00  (One Million U.S.
             Dollars),  the underwriters  shall not make  such payment without
             first  obtaining  the written  consent thereto  of  the Mortgagee
             (which  consent shall  not be  unreasonably withheld).   Any loss
             covered  by this  paragraph which  is paid  to the  Mortgagee but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by  the Mortgagee to, or as directed  by, the Owner and all other
             payments to  the Mortgagee  of losses  covered by  this paragraph
             shall  be  applied by  the  Mortgagee in  accordance  with Clause
             10.01.

             In  the event of  a Total Loss,  all insurance  payments therefor
             shall  be paid to the Mortgagee.   The Owner shall not declare or
             agree  with the underwriters that the Rig is a Total Loss without
             the prior written consent of the Mortgagee.

       (c)   In the  event of a  Total Loss  of the  Rig, the Mortgagee  shall
             retain out of the  insurance payments received on account of such
             loss  any sum  or  sums that  shall  be or  become  owing to  the
             Secured  Creditors under  the Security Documents,  whether or not
             the  same shall be  then due and  payable, together  with accrued
             interest and the cost, if any,  of collecting the insurance,  and
             pay the balance as provided in Clause 10.

       (d)   The  Owner shall comply with and satisfy all of the provisions of
             any applicable law, regulation, proclamation or order  concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will  maintain, or cause  to be maintained, all  certificates
             or other evidence of financial responsibility as  may be required
             by any  such law, regulation, proclamation  or order with respect
             to the trade in which the Rig from time to time is engaged.

       (e)   The Owner shall renew all  such insurances as they expire and  so
             as  to  insure  that  there  is  no  gap in  coverage,  keep  the
             Mortgagee  advised of the  progress of  such renewals,  and shall
             provide evidence of such renewal in  writing to the Mortgagee  as
             and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or other  sums  payable  in  respect of  all  such
             insurances and produce  all relevant receipts when so required by
             the Mortgagee.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments   of  insurance   aforesaid  relative   to  the   Rig
             (including any warranties,  express or implied,  therein) without
             first  obtaining the  consent to such  employment of the insurers
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants with  the  Mortgagee that  throughout  the Credit
       Facility Period the Owner will:-

       (a)   keep the Rig documented in  its name as a Panamanian flag  vessel
             and  do or allow  to be done  nothing whereby  such documentation
             may be forfeited or imperilled;

       (b)   not  without the  previous consent  in writing  of the  Mortgagee
             except as otherwise contemplated by the  Credit Agreement, change
             the  name of  the Rig or  make any modification  to the Rig which
             would  materially  alter  the  structure,  type  or   performance
             characteristics of the Rig and which  would materially reduce the
             value of the Rig;

       (c)   keep the Rig in a  good and efficient state of repair  consistent
             with first-class ship-ownership and management  practice employed
             by owners  of drilling rigs of similar size and type and so as to
             maintain her present class (namely +A1 Barge) at  American Bureau
             of  Shipping  free  of  recommendations  and  qualifications  and
             change of class, save  those approved in writing by the Mortgagee
             and  so as  to  comply with  all  applicable  laws, treaties  and
             conventions  of  the  Republic  of Panama  and  other  applicable
             jurisdictions, and rules  and regulations issued thereunder,  and
             have on  board as and  when required  thereby valid  certificates
             showing compliance therewith;

       (d)   procure that all repairs to or  replacement of any damaged,  worn
             or  lost parts  or  equipment in  such  manner  (both as  regards
             workmanship  and  quality  of  materials) as  to  not  materially
             diminish  the value of  the Rig  and not  to remove  any material
             part of, or  item of equipment owned  by the Owner  installed on,
             the  Rig unless  (i) the  part or  item so  removed is  forthwith
             replaced  by  a  suitable part  or  item  which  is in  the  same
             condition as or better condition than  the part or item  removed,
             is free from any Security  Interest (other than Permitted  Liens)
             in favor  of any person other  than the Mortgagee  and becomes on
             installation on the Rig the  property of the Owner and subject to
             the security constituted  by this  Mortgage or  (ii) the  removal
             will not materially diminish the value of the Rig;

       (e)   submit  the Rig to  such periodical  or other  surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the  Mortgagee copies of  all survey reports  issued in
             respect thereof;

       (f)   permit  the Mortgagee  by independent surveyors  to board the Rig
             at all  reasonable  times  and  upon reasonable  notice  for  the
             purpose  of  inspecting  her  condition  or  for  the  purpose of
             satisfying themselves in regard  to proposed or executed  repairs
             and  to  afford  all  proper  facilities  for  such  inspections,
             provided that unless an  Event of Default shall have occurred and
             be continuing, the cost of  any such inspection shall be  for the
             account of the Mortgagee;

       (g)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in respect  of the  Rig and  all other  outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig pursuant  to  legal  process, or  in  the  event of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (h)   not employ  the  Rig or  allow  her employment  in any  trade  or
             business  which  is  unlawful  under  the laws  of  any  relevant
             jurisdiction  or in carrying  illicit or  prohibited goods  or in
             any manner whatsoever  which can reasonably be expected to render
             her liable  to destruction,  seizure or  confiscation and in  the
             event  of hostilities in  any part  of the world  (whether war be
             declared or not) not employ  the Rig or suffer her  employment in
             carrying any contraband  goods or to enter  or trade to  any zone
             which  is declared  a war  zone by any  government or  by the War
             Risks insurers of the Rig unless  there shall have been  effected
             by  the  Owner  (at  its  expense) such  special,  additional  or
             modified  insurance   cover  as  the  Mortgagee   may  reasonably
             require;

       (i)   promptly furnish to the  Mortgagee all such information as it may
             from  time to  time require  regarding the  Rig,  her employment,
             position  and  engagements,   particulars  of  all  towages   and
             salvages and, upon the Mortgagee's request in writing,  copies of
             all  charters and other contracts for her employment or otherwise
             howsoever concerning her;

       (j)   notify the  Mortgagee forthwith by telecopy  thereafter confirmed
             by letter of:-

             (i)  any casualty to  the Rig which is or is likely to be a Major
                  Casualty; and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss; and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by any  competent  authority
                     which is not complied with; and

             (iv)    any  arrest  of  the  Rig or  the  exercise  or purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire; and

             (v)  any intended dry docking  of the Rig, as to which  the Owner
                  shall give  the Mortgagee  30 days  prior notice,  provided,
                  that in the  event of any emergency dry  docking of the Rig,
                  the Owner shall immediately notify the Mortgagee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for normal periods  of inactivity between  contracts
                     for the  Rig during which periods the Rig remains manned)
                     and obtain the Mortgagee's prior written consent;

       (k)   keep proper  books of account  in respect of the  Rig and  as and
             when  the Mortgagee  may so  reasonably  require make  such books
             available  for inspection on behalf of  the Mortgagee and furnish
             satisfactory  evidence  that the  wages  and  allotments and  the
             insurance  of the master  and crew are  being regularly  paid and
             that all deductions  from crew's wages  in respect of  tax and/or
             social  security liability  are being properly  accounted for and
             that the master has no claim  for disbursements other than  those
             incurred by him  in the ordinary course of  trading on the voyage
             then in progress;

       (l)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit  Agreement which  apply to the  Rig and the  Owner, and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (m)   not  without the  previous consent  in  writing of  the Mortgagee
             (such consent not to  be unreasonably withheld), put the Rig into
             the possession of any  person for the purpose of work  being done
             upon her in an amount  exceeding or likely to exceed Two  Million
             Five  Hundred  United  States Dollars  (US$2,500,000.00)  (or the
             equivalent in  any other currency) unless  (i) such  person shall
             first have given  to the Mortgagee  and in terms  satisfactory to
             it a written undertaking not to exercise any lien  on the Rig for
             the cost of such work or otherwise or (ii)  the cost of such work
             shall be fully covered by applicable insurance;

       (n)   comply with  and satisfy  all the  provisions of applicable  laws
             and  regulations  of  the Republic  of  Panama,  as  at  any time
             amended, in order  to establish and  maintain this Mortgage  as a
             first priority  naval mortgage thereunder upon  the Rig  and upon
             all renewals,  improvements and  replacements made  in or to  the
             same,  and promptly to furnish to the Mortgagee from time to time
             such proofs as  the Mortgagee  may request  for its  satisfaction
             with respect to the compliance by  the Owner with the  provisions
             of this  sub-clause, including,  appropriate certificates of  the
             Public  Registry  showing  that  this  Mortgage   has  been  duly
             registered and  filed and  is a  first and  absolute lien  on the
             Rig;

       (o)   place,  and use  due diligence  to retain,  a properly  certified
             copy of this Mortgage on board the Rig with  her papers and cause
             such certified  copy of this Mortgage to  be exhibited to any and
             all persons having  business with the  Rig which might  give rise
             to  any  lien thereon  other  than a  lien  for crew's  wages and
             salvage and to any  representative of the Mortgagee on demand and
             to place and keep prominently displayed in  the chart room and in
             the  master's cabin of  the Rig a framed  printed notice in plain
             type  in English  of  such size  that  the  paragraph of  reading
             matter shall  cover a space  not less  than 6  inches wide and  9
             inches high reading as follows:-

                                         "NOTICE OF MORTGAGE

                  This Rig  is subject to an Indenture of First Naval Mortgage
             in  favor of CHRISTIANIA  BANK OG KREDITKASSE,  as Agent  for the
             Banks   defined  in   said  Mortgage,  in   conformity  with  the
             provisions  of Chapter V, Title IV of  Book Second of the Code of
             Commerce,  and the  pertinent provisions  of the  Civil Code  and
             other legislation of the Republic of Panama.  Under the terms  of
             said Mortgage neither  the owner,  any charterer,  the Master  of
             the Rig  nor any  other person  shall have  the  right, power  or
             authority to  create, incur or permit  to be placed upon  the Rig
             any other  lien whatsoever  other than  for current crew's  wages
             and salvage and Permitted Liens (as that term is defined  in said
             Mortgage)."

       (p)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (q)   notify the Mortgagee forthwith upon:

             (i)  any Environmental  Claim which could  reasonably be expected
                  to result in damages in  excess of US$200,000 being or  made
                  against the Owner, or otherwise in connection with  the Rig;
                  or

             (ii)    any  Environmental  Incident  occurring,  and  keep   the
                     Mortgagee advised, in  writing on such regular  basis and
                     in  such detail  as the Mortgagee  shall require,  of the
                     Owner's   response  to   such   Environmental  Claim   or
                     Environmental Incident.

       (r)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by the  Credit  Agreement) without  the  written consent  of  the
             Mortgagee  having  first  been  obtained, and  any  such  written
             consent  to any one such sale,  mortgage or transfer shall not be
             construed to be  a waiver of  this provision with respect  to any
             subsequent proposed sale,  mortgage or transfer.   Any such sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and  the lien it creates.   The Owner shall  not charter
             the Rig to, or permit  the Rig to serve under any  contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or  "specially designated national"
             of a "designated foreign  country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United  States Treasury Department, 31  C.F.R. Parts 500 and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the Government  of  Libya"  or  "Libyan  entity"  in  the  Libyan
             Sanctions Regulations  of the United States  Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of  the Government of Iraq"  or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified at  31 C.F.R.  Part 575, as  amended, all within  the
             meaning   of   said    Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter any Cuban  port for any purpose or engage  in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the  Iranian   Transactions
             Regulations,  31 C.F.R.  Part 560, as  amended, the Foreign Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction or violation would  (i) expose  the Mortgagee to  any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (s)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary   to  law  (except  where  the  failure  to  operate  in
             compliance with any law  would not have a material adverse effect
             on the Owner, the  Rig or the lien  of this Mortgage), shall  not
             abandon  the Rig  in a foreign  port and shall  not engage in any
             unlawful trade or violate  any law or carry any cargo  that shall
             expose the Rig to forfeiture or capture.

8.     PROTECTION OF SECURITY

8.01   The Mortgagee shall  without prejudice to  its other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at any time and  as often as may be necessary (but unless an
       Event of  Default shall  have  occurred and  be  continuing with  prior
       written notice to  the Owner) to take any such  action as it may in the
       reasonable  exercise of  its discretion  think fit  for the  purpose of
       protecting or  maintaining the  security created by  this Mortgage  and
       the other Credit Documents (including, without  limitation, such action
       as  is  referred  to  in  Clause 8.02)  and  each  and  every  expense,
       liability, or  loss (including,  without  limitation, reasonable  legal
       fees)  so incurred by the Secured Creditors  in or about the protection
       or  maintenance of  the said  security together  with interest  payable
       thereon under Clause 4.01(b) shall  be repayable to it by the  Owner on
       demand.

8.02   Without prejudice to the generality of Clause 8.01:-

       (a)   if the  Owner does not  comply in any  material respect with  the
             provisions  of Clause 6  or any  of them  the Mortgagee  shall be
             entitled (but not  bound) to effect  or to replace and  renew and
             thereafter to maintain the Insurances in  such manner it, in  its
             discretion,  may  think fit  and  to require  that  all policies,
             contracts   and  other   records  relating   to  the   Insurances
             (including details  of any correspondence  concerning outstanding
             claims)  be forthwith delivered to such  brokers as the Mortgagee
             may  nominate  and,  upon  the  direction  of  the  Mortgagee  to
             collect, recover,  compromise and  give a good  discharge for all
             claims  then   outstanding  or   thereafter  arising  under   the
             Insurances  or any  of them  and to  take over  or institute  (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection   therewith  as   the   Mortgagee   in  its   absolute
             discretion, may think fit  and to permit the brokers through whom
             the  collection  or recovery  is  effected  to  charge the  usual
             brokerage therefor;

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or any  of them  the Mortgagee  shall be
             entitled (but not  bound) to arrange for the carrying out of such
             repairs to and/or  surveys of the  Rig as  it deems expedient  or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or any of them, the Mortgagee shall be entitled  (but not
             bound)  to  pay   and  discharge  all  such  debts,  damages  and
             liabilities   and  all  such  tolls,  dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND MORTGAGEE'S POWERS

9.01   Upon  the happening  of any of  the Events of  Default specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to the effect that an Event  of Default
       has occurred  (and  whether prior  to  or after  the Mortgagee  or  the
       Required  Banks having  served  on the  Owner  any  such notice  as  is
       referred  to in  Section  9  of  the  Credit  Agreement)  the  security
       constituted by this Mortgage  shall become immediately enforceable  and
       the Mortgagee shall  be entitled, as  and when it  may see fit, to  put
       into force  and exercise all or  any of the  powers possessed by  it as
       mortgagee of the Rig or otherwise and in particular:-

       (a)   to  exercise  all the  rights  and  remedies in  foreclosure  and
             otherwise  given to  mortgagees by  the laws  of the  Republic of
             Panama or other applicable laws;

       (b)   to take possession of  the Rig whether actually or constructively
             and/or otherwise to take control  of the Rig wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon demand  to surrender the same to the Mortgagee
             without legal process  and without liability of the Mortgagee for
             any  losses or  damages incurred  thereby and  without having  to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Mortgagee;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure that the Mortgagee collect, recover,  compromise and give
             good discharge for  any and all moneys or  claims for moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection or recovery is  effected to charge the usual brokerage
             therefor;

       (e)   to take  over or institute  (if necessary  using the name  of the
             Owner)  all such  proceedings  in connection  with  the Rig,  the
             Insurances, or any Requisition  Compensation as the Mortgagee  in
             its  absolute discretion  thinks fit and  to discharge, compound,
             release or compromise claims  against the Owner in respect of the
             Rig which have  given or may give  rise to any charge or  lien on
             the  Rig  or  which are  or  may  be  enforceable  by proceedings
             against the Rig;

       (f)   to  sell the  Rig  or any  share  therein with  or  without prior
             notice to  the Owner free from  any claim of  or by the  Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or all of  the purchase price be deferred) as  the Mortgagee
             in its absolute discretion may  determine with power to  postpone
             any such sale,  without being answerable for any  loss occasioned
             by  such  sale or  resulting  from  postponement thereof,  and/or
             itself to purchase the Rig  at any such public auction and to set
             off  the  purchase  price  against  all   or  any  part  of   the
             Obligations,  subject to  notice  of  sale  being  given  by  the
             Mortgagee to the  Owner and other  mortgagees of record,  if any,
             by  airmail,  postage  pre-paid  and  by publication  once  in  a
             newspaper  of general circulation in the City of Panama, Republic
             of Panama, not less  than twenty (20) calendar days in advance of
             the sale, to satisfy  the requirement of notice of sale contained
             in  Article 1527  of the  Panama Code  of Commerce.   Such notice
             shall be necessary only in respect of the initial date of sale;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and for such period as the  Mortgagee in its absolute  discretion
             deems  expedient  and for  the purposes  aforesaid  the Mortgagee
             shall  be  entitled  to do  all  acts  and  things  incidental or
             conducive   thereto  and   in  particular  to   enter  into  such
             arrangements respecting  the Rig, and  the insurance, management,
             maintenance, repair,  classification, chartering and   employment
             of the Rig, in  all respects as if  the Mortgagee were the  owner
             of  the Rig and  without being responsible  for any  loss thereby
             incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as may  be incurred  by  the Mortgagee  in  or about  the
             exercise   of   the  power   vested   in   the  Mortgagee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or loss  incurred by the Mortgagee in or about
             or  incidental  to  the exercise  by  it  of  any of  the  powers
             aforesaid.

9.02   The  Mortgagee shall  not be  obliged  to make  any enquiry  as to  the
       nature  or sufficiency  of  any  payment  received  by  it  under  this
       Mortgage or to make  any claim, take any  action or enforce any  rights
       and  benefits assigned  to the Mortgagee  by this Mortgage  or to which
       the Mortgagee may at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates  and advisers  shall be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection with  the  exercise or  purported  exercise of  any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Mortgagee shall not by  reason of the taking possession of  the Rig
       be liable to  account as mortgagee-in-possession or for anything except
       actual receipts or  be liable for any loss upon  realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon any  sale of  the Rig or  any share  therein by the  Mortgagee the
       purchaser shall not be bound to see or enquire  whether the Mortgagee's
       power of sale has  arisen in the manner  provided in this Mortgage  and
       the sale shall  be deemed to be  within the power of  the Mortgagee and
       the receipt of the Mortgagee for  the purchase money shall  effectively
       discharge the purchaser who  shall not be concerned with the  manner of
       application  of  the proceeds  of  sale  or be  in  any way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All moneys  received by  the Mortgagee  or any  Secured Creditor,
             including, without limitation, in respect of  sale of the Rig  or
             any part  thereof, in respect of  recovery under  the Insurances,
             or in  respect of Requisition  Compensation, shall be applied  in
             the following manner:-

             (i)  first, to  the payment of all amounts owing the Mortgagee of
                  the type described in clauses (ii) and (iii) of Recital E;

             (ii)    second, to the extent moneys remain after the application
                     pursuant to the preceding clause (i), an amount equal  to
                     the outstanding Obligations shall be  paid to the Secured
                     Creditors  as  provided  in Clause  10.01(c),  with  each
                     Secured  Creditor  receiving  an  amount  equal  to  such
                     Obligations  held  by   it  or,   if  the  proceeds   are
                     insufficient to pay in full all such Obligations, its Pro
                     Rata Share (as  defined below) of the amount remaining to
                     be distributed; and

             (iii)   third, to the extent moneys  remain after the application
                     pursuant  to  the  preceding clauses  (i)  and  (ii), and
                     following the  termination of  this Mortgage  pursuant to
                     Clause 3.01, any  surplus then remaining shall be paid to
                     the Owner, subject, however, to  the rights of the holder
                     of any  then  existing Lien  of which  the Mortgagee  has
                     actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount  of such Obligations owing to  or held by such
             Secured  Creditor  and  the denominator  of  which  is  the  then
             outstanding amount  of  all such  Obligations.   For purposes  of
             determining  the  amount payable  to each  Secured  Creditor, the
             Mortgagee shall be entitled to  request each Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed to  it  and shall  be  entitled to  reply upon  the  amounts
             stated therein in making such distribution.

       (c)   All  payments required to be made  to Secured Creditors hereunder
             shall be  made to  the Agent under  the Credit Agreement  for the
             account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01, the  Mortgagee shall be entitled to reply upon
             (i)  the Agent under  the Credit Agreement  and (ii)  the Secured
             Creditors for  a determination (which the  Agent and each Secured
             Creditor,  by their acceptance of  the benefits  of this Mortgage
             shall be obligated to provide upon  request of the Mortgagee)  of
             the  outstanding  Obligations  owed  to  the  Secured  Creditors.
             Unless it  has  actual knowledge  (including  by way  of  written
             notice from a Secured  Creditor) to the contrary, the Agent under
             the Credit Agreement, in  furnishing information pursuant to  the
             preceding  sentence,  and the  Mortgagee,  in  acting  hereunder,
             shall be entitled  to assume that  (x) no obligations  other than
             principal, interest and regularly accruing fees are owing to  any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Mortgagee in its absolute discretion may require for:-

       (a)   perfecting or protecting the security created (or  intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting any of the  rights of the Mortgagee  and
             the Agent under this Mortgage; or

       (c)   ensuring that the  security constituted by this  Mortgage and the
             covenants and obligations  of the Owner under this Mortgage shall
             inure to the benefit  of any transferee, successor or assignee of
             the Mortgagee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Mortgagee under this Mortgage,

       in  any such case, forthwith  upon demand  by the Mortgagee  and at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner,  by way of  security and in order  to more fully  secure the
       performance of the Obligations under this  Mortgage, hereby irrevocably
       appoints the Mortgagee as  its attorney for the duration  of the Credit
       Facility Period for the purposes of:-

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in  its name all documents which  the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on behalf  of  the  Mortgagee until  this
             Mortgage shall  have become  immediately enforceable  pursuant to
             Clause 9.01; and

       (b)   executing,   signing,   perfecting,  doing   and   (if  required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of such power as  is referred to in Clause 12.01(a) by  or
       on behalf of the  Mortgagee shall not put  any person dealing with  the
       Mortgagee upon  any enquiry  as  to whether  this  Mortgage has  become
       enforceable nor  shall such  person be  in any way  affected by  notice
       that this Mortgage has not become enforceable and,  in relation to both
       Clauses 12.01(a) and 12.01(b),  the exercise by the  Mortgagee of  such
       power  shall be  conclusive evidence  as against  third parties  of its
       right to exercise the same.

13.    INDEMNITIES

13.01  The Owner will  indemnify and save  harmless the Secured  Creditors and
       each  agent or attorney  appointed under or  pursuant to  this Mortgage
       (each an "Indemnitee") from and against  any and all expenses,  claims,
       liabilities, losses, taxes, costs,  duties, fees and charges  suffered,
       incurred or made  by such Secured Creditors  or such agent or  attorney
       in good faith:-

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in  the  preservation or  enforcement of  the  Mortgagee's rights
             under this Mortgage; or

       (c)   on  the release  of the  Rig from  the  security created  by this
             Mortgage,

       and  the Secured Creditors  and each such agent  or attorney may retain
       and pay  all sums in  respect of the  same out of  money received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by a Secured  Creditor or such agent  or attorney shall  be recoverable
       on a full indemnity basis.

13.02  Without limiting the  foregoing Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of them, by reason of  (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including wrongful death) or  property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement reached;  or  (d)  any  violation of  laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If,  under any applicable law or  regulation, and whether pursuant to a
       judgment being made or  registered against the Owner or the liquidation
       of  the Owner  or  for  any  other  reason, any  payment  under  or  in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than the currency  in which such payment is due  under or in connection
       with this  Mortgage (the  "contractual currency"), then  to the  extent
       that  the amount of  such payment actually  received by  the Mortgagee,
       when converted into the contractual currency  at the rate of  exchange,
       falls short  of  the  amount  due under  or  in  connection  with  this
       Mortgage, the  Owner, as a separate  and independent  obligation, shall
       indemnify and hold  harmless the Mortgagee  against the amount  of such
       shortfall.  For the purposes of  this Clause 13.03, "rate of  exchange"
       means  the rate  at which  the Mortgagee is  able on  the date  of such
       payment (or,  if it is  not practicable for  the Mortgagee  to purchase
       the contractual currency with the payment currency  on the date of such
       payment, at the rate of  exchange as soon afterwards as is  practicable
       for the  Mortgagee to do so) to  purchase the contractual currency with
       the  payment currency and shall take into account any premium and other
       costs of exchange with respect thereto.

14.    EXPENSES

14.01  The  Owner shall pay  to the  Mortgagee on demand  all costs,  fees and
       expenses, including, but  not limited to,  legal fees and  expenses and
       valuation fees and  Taxes thereon incurred  by any Secured  Creditor or
       for which any Secured Creditor may become liable in connection with:-

       (a)   the  negotiation,   preparation  and  execution  of   the  Credit
             Agreement,   the  Subsidiary  Guaranty   and  the   other  Credit
             Documents (or any of them); and/or

       (b)   the  preserving or  enforcing of,  or attempting  to preserve  or
             enforce,  any  of  its  rights under  the  Credit  Agreement, the
             Subsidiary Guaranty  or the  other  Credit Documents  (or any  of
             them).

14.02  The  Owner shall  pay to  the Mortgagee on  demand all  costs, fees and
       expenses (including, but not limited to,  legal fees and expenses)  and
       Taxes thereon incurred by any Secured Creditor in connection with:-

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of  the Credit  Agreement, the  Subsidiary Guaranty  or the
             other Credit Documents (or any of  them) requested by the  Owner,
             necessary or  advisable under applicable law  or relating  to the
             syndication  of  the Credit  Facility,  or  initiated during  the
             occurrence and continuation of an Event of Default; and/or

       (b)   any consent or waiver  required from the Mortgagee in relation to
             the  Credit  Agreement, the  Subsidiary  Guaranty  and the  other
             Credit Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty  and  the other  Credit  Documents  (or any  of  them) may  be
       subject  or give  rise  and shall  indemnify  the  Mortgagee on  demand
       against any and all  liabilities with respect to or  resulting from any
       delay or omission  on the part of the  Owner to pay any  such duties or
       Taxes.

15.    COMMUNICATIONS

15.01  All notices required to be given  to the Mortgagee shall be made to the
       following address:

                           Christiania Bank og Kreditkasse, New York Branch
                           11 West 42nd Street
                           7th Floor
                           New York, New York  10036
                           Attention:  Loan Administration
                           Telephone:  (212) 827-4800
                           Telefax:    (212) 827-4888

       All  other notices  shall  be made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This Mortgage shall  be binding upon and shall inure  to the benefit of
       the Secured Creditors and their respective  transferees, successors and
       permitted assigns,  and references  in  this Mortgage  to  any of  them
       shall be construed accordingly.

16.02  The Owner may  not assign  or transfer all  or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.16 of the  Credit Agreement, each  Bank has the
       right  to assign  or transfer  all  or any  part of  its rights  and/or
       obligations  under the Credit Agreement on  the terms therein provided.
       The  Mortgagee  shall notify  the  Owner  promptly following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The total amount  of this  Mortgage is One  Hundred Million US  Dollars
       (US$100,000,000) of  principal  plus  interest, fees,  commissions  and
       performance of mortgage  covenants.  The  discharge amount is  the same
       as the total amount.

18.    WAIVER; AMENDMENT

18.01  None of  the terms  and conditions  of  this Mortgage  may be  changed,
       waived, modified or varied in any  manner whatsoever unless in  writing
       duly signed by the Owner  and the Mortgagee (with the consent of either
       the Required Banks  or, to the extent required by  Section 12.12 of the
       Credit Agreement,  all of the  Banks).  No amendment  to the Subsidiary
       Guaranty  which affects  the rights  and obligations  of the  Mortgagee
       hereunder shall  be  effective without  the  consent of  the  Mortgagee
       thereto.

19.    MISCELLANEOUS

19.01  This Mortgage shall be governed by the laws of the Republic of Panama.

19.02  If at any  time any one or more  of the provisions in  this Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability  of the
       remaining  provisions of this Mortgage shall not be in any way affected
       or impaired thereby.

19.03  The  Mortgagee, at  any time  and from  time to  time, may  delegate by
       power  of attorney or in any other  manner to any person or persons all
       or any  of the powers,  authorities and discretions  which are for  the
       time  being  exercisable  by  the  Mortgagee  under  this  Mortgage  in
       relation to the  Rig.  Any such delegation may  be made upon such terms
       and subject to such  regulations as the Mortgagee  may think fit.   The
       Mortgagee shall not be  in any way liable  or responsible to the  Owner
       for  any loss  or damage  arising from  any act,  default,  omission or
       misconduct on the part of any such delegate.

19.04  The  appearing parties  hereby confer  a special  power of  attorney on
       Benedetti &  Benedetti, lawyers  of Panama,  Republic of Panama  and/or
       any partners in  the firm authorizing such firm or  any such partner to
       take  all necessary  steps  to record  this  Indenture  of First  Naval
       Mortgage in the  appropriate registries of the  City of Panama, and  to
       substitute this Power of Attorney herein granted.

19.05  A  certification or  determination by  the Mortgagee  as to  any matter
       provided for in this Mortgage  shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.06  The  Mortgagee  declares  that  it accepts  the  naval  mortgage hereby
       created under the terms above set forth.

20.    JURISDICTION

20.01  The Owner  agrees that the  Mortgagee shall have the  liberty but shall
       not be obliged to take any proceedings in the courts of any  country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose  of any proceedings for such enforcement  the Owner
       hereby submits to the jurisdiction of the courts of  any country of the
       choice of the Mortgagee.

20.02  Without  prejudice  to the  generality of  Clause 20.01,  the Mortgagee
       shall  have the  right to  arrest and  take action  against the  Rig at
       whatever place the Rig shall  be found lying and for the purpose of any
       action  which the  Mortgagee  may  bring  before  the  courts  of  such
       jurisdiction  or other judicial  authority and for  the purpose  of any
       action  which  the  Mortgagee may  bring  against  the  Rig,  any writ,
       notice,  judgment  or other  legal  process or  documents  may (without
       prejudice to  any other  method  of service  under  applicable law)  be
       served upon  the  master of  the  Rig (or  upon  anyone acting  as  the
       master) and such service shall be deemed good service  on the Owner for
       all purposes.

20.03  The Owner  agrees that  should the  Mortgagee bring a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in  connection with this Mortgage,  no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by or  on behalf of the Owner  or with respect of  its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner  hereby consents generally in respect  of any legal action or
       proceedings arising out of  or in connection with this  Mortgage to the
       giving out  of any relief  or the  issue of  any process in  connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made or given in  such
       action or proceedings.

IN WITNESS   whereof  the Owner  and the  Mortgagee have  duly executed  these
presents the day and year first before written.

READING AND BATES BORNEO DRILLING CO., LTD.


By:  _____________________________________

CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH


By:  _____________________________________


                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK             )
                              )    ss:
COUNTY OF NEW YORK            )


                   On this  ____  day of  April,  1996, before  me  personally
appeared ____________________ to me known and who resides at                  
                      ;  and  who submitted  evidence  to  me  that  he  is  a
___________  of   READING   AND  BATES   BORNEO   DRILLING  CO.,   LTD.,   the
___________________  company  described in  and  which executed  the foregoing
mortgage; and that he signed his name thereto pursuant to authority granted to
him by the Board of Directors of said corporation.


                                                    ___________________
                                                    Notary Public



                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK             )
                              )    ss:
COUNTY OF NEW YORK            )

                   On this  ____  day of  April,  1996, before  me  personally
appeared    ______________    to    me    known    and    who    resides    at
__________________________; and  who submitted evidence  to me that  he/she is
__________  of  CHRISTIANIA  BANK  OG   KREDITKASSE,  NEW  YORK  BRANCH,   the
corporation described in and which  executed the foregoing mortgage; and  that
he/she signed his/her name thereto pursuant to authority granted to him/her by
the Board of Directors of said corporation.



                                                   _______________________
                                                   Notary Public


                                                         Exhibit 10.92     
                                                                           

                       READING & BATES (A) PTY. LTD.

                                   - to -

                      CHRISTIANIA BANK OG KREDITKASSE,
                              NEW YORK BRANCH

                         __________________________

                          FIRST PRIORITY MORTGAGE

                            Dated April 30, 1996

                         _________________________


                               RON TAPPMEYER

==============================================================================

THIS FIRST PRIORITY MORTGAGE is made the 30th day of April, 1996 by READING
& BATES (A) PTY. LTD.,  ACN 064 532 252,  a company organized and  existing
under the  laws of the State  of Western Australia and  the Commonwealth of
Australia and having its registered  office 66 Kings Park Road, West Perth,
West Australia,  (the "Owner") to  CHRISTIANIA BANK  OG KREDITKASSE  acting
through its New York Branch  having its office at 11 West 42nd  Street, 7th
Floor, New York, NY  10036 (the "Mortgagee", which expression shall include
its successors and assigns),

WHEREAS:

(1)   The Owner is the sole,  absolute and unencumbered owner of sixty-four
      sixty-fourth shares of the Rig described in the Schedule 1 hereto.

(2)   By a Credit Agreement dated  as of April 30, 1996 (as  in effect from
      time   to  time  the  "Credit   Agreement")  among  Reading  &  Bates
      Corporation,  a Delaware corporation,  ("Holdings"), the  Banks party
      thereto Credit  Lyonnais,  New  York Branch,  as  co-agent,  and  the
      Mortgagee, as  agent for  the Banks  (in this capacity,  the "Agent")
      (the form of  which Credit Agreement together  with Exhibit B thereto
      but without the  remaining attachments is attached  hereto as Exhibit
      1),  it was  agreed among  other  things that  the  Banks would  make
      available  to  the Borrower  upon the  terms  and conditions  therein
      described a reducing revolving credit facility in an aggregate amount
      at  any one  time outstanding  of  One Hundred  Million United States
      Dollars (US$100,000,000)  providing for the  making of  Loans and the
      issuance of and participations in, Letters  of Credit as contemplated
      therein.

(3)   The  obligations of  the Borrower  with respect  to the  Facility are
      evidenced by the Credit Agreement and the other Credit Documents, and
      including the promissory  notes of the Borrower  payable to the order
      of  the respective  Banks  (each  a  "Note"  and,  collectively,  the
      "Notes") (the  form of which is  attached as Exhibit B  to the Credit
      Agreement).

(4)   The  Owner,  for good  and  valuable  consideration, has  authorized,
      executed  and  delivered  a  Subsidiary   Guaranty  (the  "Subsidiary
      Guaranty"), the form of  which Subsidiary Guaranty is attached hereto
      as Exhibit  2, in favor of the Agent  guaranteeing the performance by
      the Borrower of its obligations under the  Credit Agreement including
      the payment, when due, of all Obligations.

(5)   This Mortgage is made for  the benefit of the Mortgagee to secure the
      guaranty by the Owner of (i) the full and prompt payment when due (x)
      the  principal of and  interest on the Notes  issued, and Loans made,
      under  the Credit  Agreement, and  all reimbursement  obligations and
      Unpaid Drawings  with respect to  the Letters of  Credit issued under
      the Credit Agreement and  (y) all other obligations  and indebtedness
      (including,  without  limitation,   indemnities,  Fees  and  interest
      thereon)  of the  Borrower  to the  Secured Creditors  as hereinafter
      defined), whether  now existing or hereafter  incurred under, arising
      out  of or  in connection  with  the Credit  Agreement and  the other
      Credit Documents including, without limitation, this Mortgage and the
      due performance and compliance by the Borrower with all of the terms,
      conditions and agreements contained  in the Credit Agreement and  the
      other Credit Documents including,  without limitation, this Mortgage;
      (ii) any and all sums advanced by the Mortgagee  in order to preserve
      the Rig  or preserve its security  interest in the Rig;  (iii) in the
      event  of any  proceeding for  the collection  or enforcement  of any
      indebtedness, obligations, or liabilities of the Borrower referred to
      in clause (i)  above, after an Event  of Default shall have  occurred
      and be  continuing, the reasonable  expenses of the  Mortgagee or re-
      taking, holding,  preparing for sale or  lease, selling or  otherwise
      disposing  of or  realizing on  the Rig,  or of  any exercise  by the
      Mortgagee  of  its   rights  hereunder,   together  with   reasonable
      attorneys' fees of counsel to the Mortgagee and court costs; and (iv)
      all amounts paid  by any Indemnitee  as to which such  Indemnitee has
      the right to reimbursement under Clause 13 of this Mortgage (all such
      obligations, liabilities,  sums and  expenses referred to  in clauses
      (i)  through  (iv)  above  being  collectively  referred  to  as  the
      "Obligations").  It is acknowledged and agreed that the "Obligations"
      shall  include extensions  of credit  of the  types  described above,
      whether outstanding  on the  date of  this Mortgage or  extended from
      time to time after the date of this Mortgage.

(6)   This  First Priority Mortgage, which is entered  into by the Owner in
      consideration of the Banks agreeing to make the Facility available to
      the  Borrower and  as  a condition  thereto  and for  other good  and
      valuable  consideration provided  by  the Banks  (the  sufficiency of
      which the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED as follows:

1.    (A)   In this Mortgage unless the context otherwise requires:

      "Agent" shall have the same meaning for such term as set forth in the
      Credit Agreement;

      "Bank" means any  lender listed from time  to time on Annex  1 to the
      Credit Agreement (collectively, the "Banks");

      "Collateral Assignment of Insurances" means the Collateral Assignment
      of Insurance in respect of the Rig executed or to be executed by  the
      Owner in favor of the Agent;

      "Credit Agreement" means the Credit  Agreement, dated as of April 30,
      1996,  among Holdings,  the Borrower, the Banks,  Credit Lyonnais New
      York Branch, as co-agent, and the Agent first referred  to in Recital
      (2) hereto;

      "Credit Facility Period" shall mean the period commencing on the date
      hereof and ending on the  date the Total Commitments have terminated,
      no Letters of Credit remain outstanding and the  Loans and the Unpaid
      Drawings, together with interest, fees  and all other obligations are
      paid in full;

      "Credit Party" shall have the same meaning for such term as set forth
      in the Credit Agreement;

      "Default  Rate"  shall  mean  the  rate  of  interest  calculated  in
      accordance with Section 1.07(b) of the Credit Agreement;

      "Environmental  Approvals"  means  all approvals,  licenses, permits,
      exemptions or  authorization required under  applicable Environmental
      Laws;

      "Environmental Claims"  means any and  all administrative, regulatory
      or judicial  actions, suits, demands, demand  letters, claims, liens,
      notices  of noncompliance  or violation,  investigations  (other than
      internal reports  prepared by  Holdings  or any  of its  Subsidiaries
      solely  in the ordinary  course of such Person's  business and not in
      response  to  any third  party  action  or request  of  any kind)  or
      proceedings  relating in  any way  to  any Environmental  Law  or any
      permit  issued, or  any approval given, under  any such Environmental
      Law (hereafter, "Claims"), including, without limitation, (a) any and
      all Claims by governmental or regulatory authorities for enforcement,
      cleanup,  removal, response,  remedial  or other  actions  or damages
      pursuant to  any applicable  Environmental Law,  and (b) any  and all
      Claims   by   any  third   party   seeking   damages,   contribution,
      indemnification,  cost  recovery,  compensation or  injunctive relief
      resulting  from Hazardous  Materials arising  from alleged  injury or
      threat of injury to health, safety or the environment.

      "Environmental  Incident"  means (i)  any release  of Environmentally
      Sensitive  Material  from  the  Rig,  (ii)  any  incident  in   which
      Environmentally Sensitive  Material is  released from a  vessel other
      than the  Rig and which  involves collision between the  Rig and such
      other vessel  or some other  incident of navigation  or operation, in
      either case, where the Rig or the Owner are  actually or allegedly at
      fault or otherwise liable (in whole or in part) or (iii) any incident
      in which Environmentally Sensitive Material is released from a vessel
      other than  the  Rig and  where the  Rig is  actually or  potentially
      liable to be arrested as  a result and/or where the Owner is actually
      or allegedly  at fault or otherwise  liable (and, in  each such case,
      "release"  shall  mean  disposing, discharging,  injecting, spilling,
      leaking,  leaching, dumping,  emitting, escaping,  emptying, seeping,
      placing  and the  like, into or  upon any  land or  water or  air, or
      otherwise entering into the environment);

      "Environmental   Laws"  means   all  applicable   laws,  regulations,
      conventions  and  agreements  whatsoever  relating  to  pollution  or
      protection of the environment (including, without limitation, the Oil
      Pollution Act of  1990 (33 U.S.C.  2701 et  seq.), the Comprehensive
      Environmental Response,  Compensation, and Liability Act  of 1980 (42
      U.S.C.   9601 et seq.),  the Hazardous  Materials Transportation Act
      (49 U.S.C.   1801 et  seq.), the Resource  Conservation and Recovery
      Act of 1976 (42 U.S.C.  6901 et seq.), the  Clean Air Act (42 U.S.C.
      7401 et seq.), the Federal Water Pollution Control Act (33 U.S.C. 
      1251  et seq.) and the Toxic Substances Control Act (15 U.S.C.  2601
      et  seq.) (all of the foregoing  as amended), and any comparable laws
      of  the  individual  States  of  the  United States  of  America  the
      Commonwealth of  Australia, the  individual states or  territories of
      Australia or any other state or nation); 

      "Fees" shall have the same meaning for such term  as set forth in the
      Credit Agreement;

      "Hazardous Materials" means (a)  any petroleum or petroleum products,
      radioactive materials, asbestos  in any form that  is or could become
      friable,  urea formaldehyde  foam insulation,  transformers  or other
      equipment  that  contained,  electric  fluid  containing  levels   of
      polychlorinated  biphenyls,  and   radon  gas;  (b)   any  chemicals,
      materials or substances  defined as or included  in the definition of
      "hazardous  substances,"  "hazardous  waste," "hazardous  materials,"
      "extremely  hazardous  waste,"  "restricted hazardous  waste," "toxic
      substances," "toxic pollutants,"  "contaminants," or "pollutants," or
      words of similar import,  under any applicable Environmental Law; and
      (c) any other  chemical, material or substance,  exposure to which is
      prohibited, limited or regulated by any governmental authority;

      "Indemnitee" shall have the meaning provided in Section 13(A);

      "Insurances" includes all policies  and contracts of insurance (which
      expression  includes all  entries  of  the Rig  in  a protection  and
      indemnity  association) which  are from  time  to time  taken  out or
      entered into in respect of the Rig or otherwise by the Owner (whether
      in the  sole name of the Owner or in the joint names of the Owner and
      the  Agent) and all benefits thereof  (including claims of whatsoever
      nature and return of premiums);

      "Interest Period" shall  have the same meaning  for such term as  set
      forth in Section 1.08 of the Credit Agreement;

      "Letter  of Credit" shall have the same  meaning for such term as set
      forth in Section 2.01 of the Credit Agreement; 

      "Loan(s)"  shall have the same meaning for  such term as set forth in
      the Credit Agreement;

      "Major Casualty" means any casualty to the Rig in respect whereof the
      claim or  the aggregate  of the  claims against all  insurers, before
      adjustment  for any  relevant franchise  or deductible,  exceeds Five
      Hundred Thousand United States Dollars (US$500,000) or the equivalent
      in any other currency;

      "Note"  means each  promissory note  of the  Borrower referred  to in
      Recital (3) hereto and in Section 1.05(a) of the Credit Agreement;

      "Obligations" shall have the meaning provided in Recital (5) hereto;

      "Oil Pollution Act 1990" means the Oil Pollution Act 1990  (33 U.S.C.
      2701 et seq.), as amended;

      "Other Rigs"  means, individually  or collectively,  each of  (i) the
      offshore drilling rig  JACK BATES  owned by  the Borrower  documented
      under the laws  and flag of  the United  States with Official  Number
      906283  of 19,928  gross  registered tons  and 14,948  net registered
      tons; (ii)  the offshore drilling rig  W. D. KENT owned  by Reading &
      Bates Exploration  ("R&B Exploration") documented under  the laws and
      flag of the United States with  Official Number 583169 of 5,383 gross
      registered  tons and  4,185 net registered  tons; (iii)  the offshore
      drilling  rig  CHARLEY GRAVES  owned  by  Reading  and  Bates  Borneo
      Drilling Co., Ltd. documented under the laws and flag of the Republic
      of Panama with  Patente Number 6618-76-CH  of 5,829  gross registered
      tons and  1,748 net registered  tons; (iv) the  offshore drilling rig
      D.R. STEWART owned  by R&B Exploration documented  under the laws and
      flag  of United  States with  Official  Number 626904 of  6,494 gross
      registered tons and  5,834 net registered tons;  and (v) the offshore
      drilling rig J.W.  McLEAN owned by the  Borrower documented under the
      laws and flag  of the Bahamas with Official  Number 715954 of 9199.01
      gross registered tons and 7267.22 net registered tons;

      "Permitted Liens" means:  (1) liens incident  to expenses  of current
      operations, other than for master's and crew's wages, incurred in the
      ordinary  course of business of the Owner and due and payable for not
      more  than  thirty (30)  days  (or  being  contested  in good  faith,
      provided such liens are not in excess of U.S.$5,000,000.00, and if in
      excess thereof, then the Owner shall, upon the written request of the
      Agent, provide a  bond or other security  satisfactory to the Agent);
      (2) liens for master's and  crew's wages not yet due and payable; (3)
      liens  for  taxes,   assessments,  governmental  charges,  fines  and
      penalties not at the time  delinquent (unless being contested in good
      faith,  provided such liens are  not in excess  of U.S.$5,000,000.00,
      and if  in excess  thereof, then the  Owner shall,  upon the  written
      request of the  Agent, provide a bond  or other security satisfactory
      to the Agent);  (4) liens for general  average and salvage (including
      contract salvage); (5) liens for  claims covered by valid policies of
      insurance meeting the requirements of Clause 6 hereof (except that no
      lien shall be deemed not covered by insurance to the extent insurance
      in  force would  cover the  amount secured  by the  lien but  for any
      applicable  deductible  amount  approved  by  the Agent);  (6)  liens
      arising  pursuant to  any  judgment  or to  an  order of  attachment,
      distraint or similar  legal process arising in connection  with legal
      proceedings,  but  only if  and so  long  as the  execution  or other
      enforcement  thereof is  not unstayed  for more  than  30 consecutive
      days; (7) any lien  for the payment or discharge of  which provisions
      satisfactory to the  Agent have been made as evidenced by the Agent's
      written consent to such lien; (8) any lien in favor of the Banks; and
      provided that  Permitted Liens shall not include  any liens described
      in subclauses (1) through (7)  above unless they: (i) are subordinate
      to the lien of this Mortgage or (ii) constitute a maritime lien which
      would in any event be entitled as such to  priority over the Mortgage
      under  the United  States  shipping  laws or  other  applicable  laws
      relating  to the  Rig's trading  pattern.   Nothing  herein  shall be
      deemed  a  waiver of  the  priority  preferred  lien  status of  this
      Mortgage; 

      "Protection  and indemnity  risks" means the  usual risks  covered by
      protection  and   indemnity  associations  of   international  repute
      including the proportion  not recoverable in case  of collision under
      the ordinary  running-down clause  (unless such is  recoverable under
      the relevant hull and machinery coverage);

      "Requisition  Compensation" means  all  moneys or  other compensation
      payable during  the Credit Facility  Period by  reason of requisition
      for title or  other compulsory acquisition of  the Rig otherwise than
      by requisition for hire;

      "Rig" means  the vessel  referred to in  Recital (1) hereto  and more
      fully  described in  Schedule  1  hereto and  includes  any share  or
      interest therein  and her engines, machinery,  boats, tackle, outfit,
      spare  gear,  fuel,  consumable   or  other  stores,  belongings  and
      appurtenances whether  on board  or ashore  and whether now  owned or
      hereafter  acquired (but  excluding  therefrom any  leased  equipment
      owned by third parties);

      "Secured Creditors" shall mean the Banks, the Letter of Credit Issuer
      and the Agent under and as defined in the Credit Agreement;

      "Security Documents" shall have the same meaning for such term as set
      forth in the Credit Agreement;

      "Security  Interest"  means  a  mortgage,  charge (whether  fixed  or
      floating),   pledge,    lien,   hypothecation,    assignment,   trust
      arrangement,   title  retention   or   other  security   interest  or
      arrangement of any kind whatsoever;

      "Subsidiary Guaranty" means the agreement  dated as of April 23, 1996
      made  by the Owner  in favor  of the  Agent as  first referred  to in
      Recital (4) hereto;

      "Taxes" shall have the same meaning for such term as set forth in the
      Credit Agreement;

      "Total Commitment" shall have the  same meaning for such term as  set
      forth in the Credit Agreement;

      "Total Loss" means (a) the actual, constructive, arranged, agreed, or
      compromised Total  Loss of the Rig; (b) the  requisition for title or
      other compulsory  acquisition or forfeiture of the Rig otherwise than
      by requisition for hire;  (c) the capture, seizure, arrest, detention
      or  confiscation of the Rig by any government or by persons acting or
      purporting  to act  on behalf  of any  government unless  the  Rig be
      released  from  such capture,  seizure,  arrest  or detention  within
      ninety (90) days after the occurrence thereof;

      "United States  Dollars" and "US$"  means the lawful  currency of the
      United States of America;

      "Unpaid  Drawing" shall have  the same meaning  for such  term as set
      forth in the Credit Agreement;

      (B)   In Clause 5(A) hereof:

            (i)   "Excess risks" means the proportion of claims for general
                  average  and  salvage  charges  and  under  the  ordinary
                  running-down clause not recoverable in consequence of the
                  value at  which a vessel  is assessed for the  purpose of
                  such claim exceeding her insured value;

            (ii)  "Protection and  indemnity risks" means  the usual  risks
                  covered  by  a   protection  and  indemnity   association
                  including  the proportion  not  recoverable  in  case  of
                  collision under the ordinary running-down clause;

            (iii) "War  risks" includes  the risk  of mines  and  all risks
                  excluded from the standard form  of English marine policy
                  by the free of capture and seizure clause.

      (C)   This Mortgage shall be read together with the Credit Agreement,
            the  Notes,  the  Subsidiary  Guaranty  and  the  other  Credit
            Security Documents.

      (D)   The Owner hereby represents and warrants to the Mortgagee that:

            (i)   the Owner is the  sole legal and beneficial owner of  the
                  whole of the  Rig and neither the whole nor  any share in
                  the Rig is subject  to any Security Interest (except  for
                  Permitted Liens and the lien of this Mortgage);

            (ii)  the Owner  has not sold or transferred, or agreed to sell
                  or transfer, title to the Rig or any share therein; 

            (iii) the Owner  is a  corporation duly  organized and  validly
                  existing and in good standing under the laws of the State
                  of Western Australia and the Commonwealth of Australia;

            (iv)  the Owner  has full power  and authority  (i) to register
                  the  Rig  in  its name  under  Australian  flag,  (ii) to
                  execute and deliver this Mortgage,  (iii) to mortgage the
                  Rig  as security  for the Obligations and  (iv) to comply
                  with the provisions  of, and perform all  its obligations
                  under, this Mortgage;

            (v)   the  Owner  has  complied with  all  statutory  and other
                  material  requirements   relating   to   the   ownership,
                  registration and operation of the Rig; 

            (vi)  the Owner has taken all necessary action to authorize the
                  execution and delivery of this Mortgage and this Mortgage
                  constitutes, the legal, valid  and binding obligation  of
                  the  Owner enforceable  against the  Owner  in accordance
                  with  its  terms   (except  to  the  extent   limited  by
                  applicable   bankruptcy,   reorganization,    insolvency,
                  moratorium or other laws of general application  relating
                  to or affecting  the enforcement of creditors'  rights as
                  from  time  to  time  in  effect  and  general  equitable
                  principles) and when filed with the Registrar of Ships at
                  the  Australian  Shipping  Registration  Office  and  the
                  Australian Securities  Commission will  create  a  legal,
                  valid and  enforceable first  preferred mortgage  lien on
                  the Rig;

            (vii) the  entry into  and performance  by  the Owner  of  this
                  Mortgage does not and will not during the Credit Facility
                  Period violate in any  respect (i) any law or  regulation
                  of any  governmental or  official authority  or body,  or
                  (ii)  any  of  the constitutive  documents  of  the Owner
                  including its Memorandum and Articles of Association,  as
                  amended  from  time  to  time,   or  (iii)  any  material
                  agreement,  contract or  other  undertaking to  which the
                  Owner  is a party  or which is binding  upon the Owner or
                  any of its assets;

           (viii) all consents,   licenses,  approvals  and  authorizations
                  required in connection with the entry into,  performance,
                  validity and enforceability of this Mortgage    and   the
                  transactions  contemplated hereby and  thereby have  been
                  obtained  and are in full force and effect and will be so
                  maintained during  the Credit  Facility Period; 

            (ix)  save for such  registrations and filings as  are referred
                  to  in  this  Mortgage,  it  is  not  necessary  for  the
                  legality,  validity, enforceability  or admissibility  in
                  evidence  of  this  Mortgage  that  it  or  any  document
                  relating  thereto  be   registered,  filed,  recorded  or
                  enrolled with  any court  or  authority in  any  relevant
                  jurisdiction or  that any stamp, registration  or similar
                  taxes be paid on or in relation to this Mortgage;

            (x)   the   Owner  is   in  compliance   with  all   applicable
                  Environmental Laws relating to the Rig, its operation and
                  management;

            (xi)  the Owner has obtained all Environmental Approvals and is
                  in compliance with all requests thereof;

            (xii) no  Environmental  Claim  has  been  made  or  threatened
                  against the Owner,  the Approved Manager or  otherwise in
                  connection with the Rig; and

           (xiii) no Environmental  Incident which  has resulted,  or which
                  could  reasonably   be  expected   to   result,   in   an
                  Environmental Claim in excess of US$200,000 has occurred.

2.    In order to  induce Banks to enter  into the Credit Agreement  and to
      make the Facility available thereunder and in consideration  of other
      valuable consideration (receipt whereof is hereby acknowledged by the
      Owner) the Owner hereby covenants with the Mortgagee as follows:

      (A)   The Owner  shall pay the  full amount of all  moneys comprising
            the Obligations  as  and when  the  same shall  become due  and
            payable in accordance with the terms of the Subsidiary Guaranty
            and the other Credit Documents.

      (B)   The Owner  will  pay to  or  indemnify the  Mortgagee for  such
            additional  amounts  as may  be  necessary  in order  that  all
            payments  under this  Mortgage after  deduction of, for,  or on
            account  of  every  present  or   future  tax,  assessment  and
            governmental charge imposed  by any competent authority  in the
            State of Western Australia or Commonwealth of  Australia (or in
            such other jurisdictions to the revenue laws of which the Owner
            may for the time  being be subject) shall be no  less than such
            payments would have been had there been no such tax, assessment
            or charge.

3.    By way of security  for the performance of the  Obligations THE OWNER
      as BENEFICIAL OWNER HEREBY MORTGAGES AND  CHARGES to and in favor  of
      the Mortgagee all the Owner's interest in the Rig, including, without
      limitation, all 64 shares in the Rig, the Earnings and the Insurances
      (all of which the Owner hereby warrants to be free at the date hereof
      from any other charge or incumbrance whatsoever, other than Permitted
      Liens, if any) and  Requisition Compensation and without prejudice to
      the generality of the  foregoing THE OWNER HEREBY ASSIGNS AND  AGREES
      to assign to the Mortgagee (or  to procure to assign to the Mortgagee
      as the case may be)  the Earnings and the Insurances and  Requisition
      Compensation  as  defined  herein  PROVIDED  HOWEVER  that  any  sums
      receivable in respect of the Insurances shall be payable as follows:

      (A)   There  shall  be  paid to  the  Mortgagee  any  and  every  sum
            receivable in respect of a Total Loss.

      (B)   Unless and until Underwriters have been otherwise instructed by
            notice in  writing from the  Mortgagee, (i) any loss  under any
            insurance on the Rig  with respect to protection and  indemnity
            risks may be paid directly to the Owner to reimburse it for any
            loss, damage  or expense  incurred by  it and  covered by  such
            insurance  or to  the person to  whom any liability  covered by
            such insurance has been incurred, (ii)  in the case of any loss
            (other than a Total Loss or  a loss covered by (i) above) under
            any insurance with respect  to the Rig involving any damage  to
            the  Rig, the  Underwriters may  pay directly  for the  repair,
            salvage, liability or other charges involved or, if  the Owners
            shall have  first fully repaired  the damage and paid  the cost
            thereof, or discharged the liability or paid all of the salvage
            or other charges, then  the Underwriters may pay the Owners  as
            reimbursement therefor, provided, however,  that if such damage
            involves a  loss in excess of U.S. $1,000,000 or its equivalent
            the Underwriters  shall not  make  such payment  without  first
            obtaining the written consent thereto of the Mortgagee.

4.    It is declared and agreed that the security created by  this Mortgage
      shall  be held  by  the Mortgagee  as a  continuing security  for the
      performance of  all Obligations  under the  Credit Documents  and the
      performance  and  observance  of  and  compliance  with  all  of  the
      covenants, terms and conditions therein and herein contained and that
      the security  so created shall  not be satisfied by  any intermediate
      payment or satisfaction of any part of the amount hereby and  thereby
      secured and that the security so created shall be in  addition to and
      shall not in any  way be prejudiced or affected by  any collateral or
      other security  now or hereafter held by the Mortgagee for all or any
      part of the  moneys hereby and thereby  secured and that  every power
      and remedy given to the Mortgagee hereunder shall  be in addition to,
      and not a limitation of, any  and every other power or remedy  vested
      in the Mortgagee under  the Subsidiary Guaranty and the other  Credit
      Documents or any other  document or instrument entered  into pursuant
      to the Credit  Agreement or at law and that  all the powers so vested
      in the Mortgagee may be exercised from  time to time and as often  as
      the Mortgagee may deem expedient.

5.    The Owner further covenants with the Mortgagee and undertakes that:

      (A)(i)      The Owner shall, at its own  expense, when and so long as
                  the  Obligations remain  outstanding, insure the  Rig and
                  keep her  insured, or  cause the  Rig to  be insured,  in
                  lawful  money of the United States,  in such amounts, for
                  such  risks  (including   without  limitation,  hull  and
                  machinery/increased  value,   protection  and   indemnity
                  risks, pollution liability, and war  risks), in such form
                  (including  without  limitation,  the  form of  the  loss
                  payable clause and the designation of named assureds) and
                  with such first class insurance companies,  underwriters,
                  funds, mutual insurance  associations or clubs, as  shall
                  be  reasonably  satisfactory  to  the  Mortgagee.    With
                  respect to hull and machinery/increased value  insurance,
                  including  war risk,  the Owner shall insure  the Rig and
                  keep  her insured, or cause the Rig to be insured, for an
                  amount which is at least the full commercial value of the
                  Rig, and when such amount  is aggregated with the  amount
                  of  such  insurance  coverage  on  the  Other Rigs,  such
                  aggregate  amount shall be at least 110% of the aggregate
                  amount of  the Total  Commitment.   The Rig  shall in  no
                  event be  insured for  an  amount less  than  the  agreed
                  valuation  as set forth in the  applicable marine and war
                  risk policies.  Such insurance shall cover marine and war
                  risk perils, on hull and  machinery, with deductibles not
                  in excess of US$500,000 (such deductibles not to apply in
                  the  case  of  Total Loss  of  the  Rig),  and  shall  be
                  maintained  in  the   broadest  forms  available  in  the
                  American, British  and Scandinavian insurance  markets or
                  in  such  other  major international  markets  reasonably
                  acceptable to the  Mortgagee.  The Owner  shall maintain,
                  or cause to  be maintained,  protection and indemnity  or
                  equivalent insurance,  including war risk  protection and
                  indemnity   coverage  and   coverage  against   pollution
                  liability, in an amount not less than US$100,000,000 (or,
                  with  respect  to   pollution  liability  coverage,  such
                  greater amount  as may be  required from time to  time by
                  the Oil Pollution Act 1990, or other Environmental Laws),
                  as and  when applicable  to the  Rig and  its operations,
                  through underwriters  or associations  acceptable to  the
                  Mortgagee.    In addition,  the Owner  shall, at  its own
                  expense, furnish  to the  Mortgagee a  mortgagee's single
                  interest policy providing coverage which, when aggregated
                  with the mortgagee's  interest insurance furnished to the
                  Mortgagee in  respect of the  Other Rigs, shall be  in an
                  amount equal  to at least 110% of the aggregate amount of
                  the Total  Commitment (or  in  lieu of  such  mortgagee's
                  interest  insurance  Owner  shall  cause   the  hull  and
                  machinery/increased  value  insurance to  be endorsed  to
                  afford breach of warranty coverage for the benefit of the
                  Mortgagee).  Such  mortgagee's interest insurance and any
                  additional  insurance  policies for  the  benefit of  the
                  Mortgagee  shall  be  maintained  in  the  broadest  form
                  available  in  the  American,  British  and  Scandinavian
                  markets or  other major international  markets acceptable
                  to the  Mortgagee through underwriters  acceptable to the
                  Mortgagee.   The Rig shall not operate in or proceed into
                  any area then  excluded by  trading warranties under  its
                  marine or  war  risk policies  (including protection  and
                  indemnity) without  obtaining  any  necessary  additional
                  coverage,  satisfactory   in  form  and   substance,  and
                  evidence of which shall be furnished, to the Mortgagee.

      (ii)        The policy  or policies of  insurance shall  be issued by
                  responsible underwriters  reasonably  acceptable  to  the
                  Mortgagee, shall contain conditions, terms,  stipulations
                  and insuring covenants satisfactory to the Mortgagee, and
                  shall be  kept in full force  and effect by  the Owner so
                  long as the Obligations  shall be outstanding.   All such
                  policies, binders  and other interim  insurance contracts
                  shall be executed and issued in the name of the Owner and
                  shall, to the  extent required herein, provide  that loss
                  be payable  to the  Mortgagee for  distribution by  it to
                  itself, the Banks and  the Owner as  their interests  may
                  appear, and  shall provide for at  least ten days'  prior
                  notice to be given  to the Mortgagee by the  underwriters
                  or  association  in  the  event  of  cancellation or  the
                  failure  of the  Owner to pay  any premium or  call which
                  would suspend coverage under the policy or the payment of
                  a  claim  thereunder.    Certified  copies  of  all  such
                  policies, binders and  other interim insurance  contracts
                  shall be deposited  with the Mortgagee.   Originals shall
                  also be  provided upon the request of the Mortgagee.  The
                  Owner shall furnish to the  Mortgagee annually a detailed
                  report  signed  by  a firm  of  marine  insurance brokers
                  satisfactory  to  the   Mortgagee  as  to  the  insurance
                  maintained in  respect of the Rig, as to their opinion as
                  to the  adequacy thereof and  as to  compliance with  the
                  provisions of this Clause 5(A).

                  Unless otherwise required  by the Mortgagee by  notice to
                  the  underwriters, although  the  following  insurance is
                  payable  to  the  Mortgagee,  (i)   any  loss  under  any
                  insurance  on  the  Rig with  respect  to  protection and
                  indemnity  risks may  be paid  directly to  the  Owner to
                  reimburse it for any loss,  damage or expense incurred by
                  it and covered by such insurance or to the person to whom
                  any liability covered by such insurance has been incurred
                  and (ii)  in  the case  of any  loss (other  than a  loss
                  covered by (i)  above or by the next  following paragraph
                  of this Clause 5(A)(ii) under  any insurance with respect
                  to  the  Rig  involving   any  damage  to  the  Rig,  the
                  underwriters may pay  direct for  the repair, salvage  or
                  other charges involved or, if the Owner shall  have first
                  fully repaired the damage  or paid all of the salvage  or
                  other  charges,  may  pay  the  Owner   as  reimbursement
                  therefor; provided, however, that if such damage involves
                  a before deductible  loss in excess of  US$1,000,000, the
                  underwriters shall not  make such  payment without  first
                  obtaining the  written consent  thereto of the  Mortgagee
                  (which consent shall not be  unreasonably withheld).  Any
                  loss  covered by  this paragraph  which  is paid  to  the
                  Mortgagee but which  might have been paid,  in accordance
                  with the provisions  of this  paragraph, directly to  the
                  Owner or others, shall be paid by the Mortgagee to, or as
                  directed by,  the Owner  and all  other payments  to  the
                  Mortgagee of losses  covered by  this paragraph shall  be
                  applied by the Mortgagee in accordance with Clause 10.01.

                  In the event of an actual or constructive Total Loss or a
                  compromised  constructive Total  Loss  or  requisition of
                  title, all insurance  payments therefor shall be  paid to
                  the Mortgagee.  The Owner shall not declare or agree with
                  the  underwriters  that  the  Rig  is  a constructive  or
                  compromised, agreed or  arranged constructive Total  Loss
                  without the prior written consent of the Mortgagee.

      (iii)       In the event of an actual  or constructive Total  Loss of
                  the Rig, the Mortgagee shall retain out of  the insurance
                  payments received on account of such loss any sum or sums
                  that  shall be or become owing  to the  Secured Creditors 
                  under the Credit Documents,  whether or  not the same  be
                  then due  and payable, together with accrued interest and
                  the  cost,  if any, of collecting the insurance,  and pay
                  the  balance as  provided in  Clause 9.

      (iv)        The  Owner  shall  comply  with  and  satisfy  all of the
                  provisions  of   any  applicable  law,  regulation,  pro-
                  clamation  or  order  concerning financial responsibility
                  for liabilities imposed  on  the  Owner  or  the Rig with
                  respect to the carriage of passengers  or  pollution, and
                  will maintain, or cause to be maintained, all certificates
                  or  other evidence of  financial responsibility as may be
                  required  by  any such  law, regulation,  proclamation or
                  order  with respect to the trade which the Rig from time
                  to time is engaged in.

      (v)         The Owner shall  renew all insurances as  they expire and
                  so  as to insure that  there is no gap  in coverage, keep
                  the Mortgagee advised  of the progress of  such renewals,
                  and procure that  the insurers shall promptly  confirm in
                  writing to the Mortgagee as and when each such renewal is
                  effected.

      (vi)        The Owner shall punctually  pay   all  premiums,   calls,
                  contributions  or other  sums payable  in  respect of all
                  such insurances and produce all relevant receipts when so
                  required by the Mortgagee.

      (vii)       The  Owner  shall  arrange  for  the  execution  of  such
                  guarantees as may  from  time  to  time  be required  by
                  any  protection and indemnity or war risks association.

      (viii)      The  Owner shall not employ the  Rig or suffer the Rig to
                  be employed otherwise  than in conformity with  the terms
                  of the instruments of insurance aforesaid relative to the
                  Rig  (including  any  warranties,   express  or  implied,
                  therein)  without  first  obtaining  the  consent  of the
                  insurers  to  such  employment  and complying  with  such
                  requirements as  to extra  premium  or otherwise  as  the
                  insurers may prescribe.

      (B)   maintain its existence as  a corporation in good  standing duly
            organized under  the laws of the State of Western Australia and
            Commonwealth of Australia;

      (C)   Not to change the name of the Rig without the Mortgagee's prior
            approval and  to keep the  Rig registered as an  Australian Rig
            and not  do or  suffer  to be  done  anything, or  omit  to  do
            anything the doing or  omission of which could or might  result
            in such  registration being  forfeited or  imperilled or  which
            could  or  might  result  in  the  Rig  being  required  to  be
            registered  otherwise  than as  an Australian  Rig  and not  to
            register the  Rig or  permit its registration  under any  other
            flag  or at any other port without the prior written consent of
            the Mortgagee.

      (D)   not without  the previous consent in  writing of the  Mortgagee
            make   any  modification  to  the  Rig  which  would  or  might
            materially  alter  the   structure  or   type  or  reduce   the
            performance characteristics of the Rig or materially reduce the
            value of the Rig;

      (E)   To  keep the  Rig  in a  good  and  efficient state  of  repair
            consistent  with  the  ownership  and  operating  practices  of
            first-class  rig owners  and operators  so as  to maintain  her
            present  class (namely  Rig Class  +A1  Self-Elevating Drilling
            Rig) and  so as to comply  with the provisions  of the Shipping
            Registration Act 1981 (Commonwealth of Australia) and all other
            laws, regulations  and requirements  (statutory  or  otherwise)
            from time to time applicable to vessels registered in Australia
            and  to  procure that  all  repairs to  or  replacement of  any
            damaged, worn  or lost parts  or equipment be effected  in such
            manner (both as  regards workmanship and quality  of materials)
            as not to diminish the value of the Rig;

      (F)   procure that all repairs to or replacement of any damaged, worn
            or lost parts  or equipment be effected in such manner (both as
            regards  workmanship  and  quality  of  materials)  as  to  not
            diminish the value of  the Rig and not  to remove any  material
            part of, or item of equipment installed on, the  Rig unless the
            part  or item  so removed is  forthwith replaced by  a suitable
            part  or  item which  is  in the  same condition  as  or better
            condition than  the  part or  item  removed, is  free from  any
            Security Interest (other than  Permitted Liens) in favor of any
            person other than the Mortgagee and  becomes on installation on
            the Rig the property of the  Owner and subject to the  security
            constituted by this Mortgage;

      (G)   submit the Rig to  such periodical or  other surveys as may  be
            required for  classification purposes  and  if so  required  to
            supply to  the Mortgagee copies of all survey reports issued in
            respect thereof;

      (H)   permit  the representatives  of  the  Mortgagee or  independent
            surveyors representing  the Mortgagee to board  the Rig at  all
            reasonable  times and upon reasonable notice for the purpose of
            inspecting  her  condition  or for  the  purpose  of satisfying
            themselves in regard  to proposed  or executed  repairs and  to
            afford all proper facilities for such inspections;

      (I)   promptly pay and  discharge all debts, damages  and liabilities
            whatsoever  which have  given or may  give rise to  maritime or
            possessory liens  (other than  Permitted  Liens) on  or  claims
            enforceable  against  the  Rig  and  all  tolls,  dues,  taxes,
            assessments, governmental charges, fines and penalties lawfully
            charged on  or in  respect of the  Rig and all  other outgoings
            whatsoever in respect of the Rig  and in the event of arrest of
            the Rig  pursuant to  legal process,  or in  the event  of  her
            detention in exercise or purported exercise of any such lien or
            claim as  aforesaid, procure the  release of the Rig  from such
            arrest or detention forthwith upon  receiving notice thereof by
            providing bail or otherwise as the circumstances may require; 

      (J)   not  employ the  Rig or allow  her employment  in any  trade or
            business  which is  unlawful  under the  laws  of  any relevant
            jurisdiction or in carrying  illicit or prohibited goods  or in
            any  manner  whatsoever   which  may   render  her  liable   to
            destruction,  seizure  or  confiscation  and  in  the event  of
            hostilities in any part  of the world (whether war be  declared
            or not) not employ the Rig or suffer her employment in carrying
            any contraband goods or to enter or trade to any  zone which is
            declared  a war  zone by  any  government or  by the  war risks
            insurers of  the Rig unless  there shall have been  effected by
            the Owner (at its expense) such special, additional or modified
            insurance cover as the Mortgagee may require;

      (K)   Promptly to furnish to the Mortgagee all such information as it
            may   from  time  to  time   require  regarding  the  Rig,  her
            employment,  position  and  engagements,  particulars  of   all
            towages  and salvages  and copies  of  all charters  and  other
            contracts for her  employment or otherwise howsoever concerning
            her.

      (L)   To notify the Mortgagee  forthwith by cable or  telex confirmed
            by letter of:

            (i)   Any  accident  to  the  Rig  involving  repairs the  cost
                  whereof will or is likely to be a Major Casualty;

            (ii)  Any occurrence in consequence whereof  the Rig has become
                  or is likely to become a Total Loss;

            (iii) Any requirement or recommendation made  by any insurer or
                  classification  society  or  by  any competent  authority
                  which is not immediately complied with;

            (iv)  Any arrest  of  the  Rig  or the  exercise  or  purported
                  exercise of any lien on the Rig or any requisition of the
                  Rig for hire;

            (v)   any intended  dry docking  of the  Rig, as  to which  the
                  Owner  shall  give  the  Mortgagee  ten  (10) days  prior
                  notice, provided, that in the  event of any emergency dry
                  docking of the  Rig, the  Owner shall immediately  notify
                  the Mortgagee; and

            (vi)  any intended  deactivation or  lay-up of  the Rig  (other
                  than for  normal periods of  inactivity between contracts
                  for the Rig during which periods the Rig  remains manned)
                  and obtain the Mortgagee's prior written consent;

      (M)   keep proper books of  account in respect of the Rig  and as and
            when  the Mortgagee may so  reasonably require make  such books
            available for inspection on behalf of the Mortgagee and furnish
            satisfactory evidence  that the  wages and  allotments and  the
            insurance of the master  and crew are being regularly paid  and
            that all  deductions from crew's wages in respect of tax and/or
            social security liability are being  properly accounted for and
            that the master has no claim for disbursements other than those
            incurred by him in the ordinary course of trading on the voyage
            then in progress;

      (N)   observe the  obligations contained in  Sections 7 and 8  of the
            Credit Agreement which apply to the  Rig and the Owner, and  in
            pursuance thereof such obligations shall be incorporated in and
            deemed to form part of this Mortgage mutatis mutandis; 

      (O)   not without  the previous  consent in writing of  the Mortgagee
            (such consent  not to  be unreasonably  withheld), put  the Rig
            into the possession of any person for the purpose of work being
            done  upon her in  an amount exceeding or  likely to exceed Two
            Million   Five   Hundred   Thousand   United   States   Dollars
            (US$2,500,000) (or the equivalent in any other currency) unless
            such person  shall first  have given  to the  Mortgagee and  in
            terms reasonably satisfactory  to it a written  undertaking not
            to exercise any  lien on the Rig  for the cost of such  work or
            otherwise;

      (P)   Reimburse the  Mortgagee promptly, with interest at the Default
            Rate,  for any  and  all expenditures  which  the Mortgagee may
            from time  to time make, lay out or  expend in  providing  such
            protection  in respect of insurance, discharge of liens, taxes,
            dues, assessments, governmental charges, fines  and   penalties
            lawfully imposed, repairs, attorneys' fees and other matters as
            the Shipowner is  obligated herein to  provide,  but  fails  to
            provide.  Such   obligation  of  the  Owner  to  reimburse  the
            Mortgagee shall  be an  additional indebtedness  due  from  the
            Owner, secured by this Mortgage, and  shall be payable  by  the
            Owner on demand.  The Mortgagee, though privileged  so  to  do,
            shall be under  no obligation to  the Owner to  make  any  such
            expenditures, nor  shall the making thereof   relieve the Owner
            of any default in that respect.

      (Q)   To  pay on  demand to the Mortgagee  (or as it  may direct) the
            amount of  all  investigation and  legal expenses  of any  kind
            whatsoever, stamp duties  (if any),  registration fees and  any
            other  charges incurred  reasonably and  in good  faith  by the
            Mortgagee  in  connection  with  the  preparation,  completion,
            enforcement  and  registration of  the  Security  Documents  or
            otherwise in connection  with the Obligations and  the security
            therefor.

      (R)   comply, or procure compliance with,  all Environmental Laws and
            Environmental Approvals relating  to the Rig, its  operation or
            management and the business of the Owner from time to time;

      (S)   notify the Mortgagee forthwith upon:

            (i)   any  Environmental   Claim  which  could   reasonably  be
                  expected to  result in  damages in  excess of  US$200,000
                  being  or  made  against  the   Owner,  or  otherwise  in
                  connection with the Rig; or

            (ii)  any  Environmental  Incident  occurring,  and  keep   the
                  Mortgagee advised, in  writing on such regular  basis and
                  in such detail  as the  Mortgagee shall  require, of  the
                  Owner's   response   to  such   Environmental  Claim   or
                  Environmental Incident;

      (T)   not sell, mortgage or transfer the Rig (other than as permitted
            by  the Credit Agreement)  without the  written consent  of the
            Mortgagee having  first been  obtained,  and any  such  written
            consent to any one such sale, mortgage or transfer shall not be
            construed to be a waiver of this  provision with respect to any
            subsequent proposed sale, mortgage or transfer.  Any such sale,
            mortgage or transfer shall be subject to the provisions of this
            Mortgage and  the lien it creates.  The Owner shall not charter
            the Rig to, or permit the Rig to serve under any contract with,
            a person  included within the definition of (i) "national" of a
            "designated  foreign   country,"   or   "specially   designated
            national" of  a "designated  foreign country,"  in the  Foreign
            Assets  Control   Regulations  or  the  Cuban   Assets  Control
            Regulations of the United States Treasury Department, 31 C.F.R.
            Parts 500 and 515, in each case as amended, (ii) "Government of
            Libya", "entity of the Government of Libya"  or "Libyan entity"
            in  the  Libyan  Sanctions  Regulations  of  the United  States
            Treasury  Department, 31 C.F.R. Part  550, as amended, or (iii)
            "Government of  Iraq", "entity  of the Government  of Iraq"  or
            "Iraqi Government  entity" in the Iraqi  Sanctions Regulations,
            56 Fed.  Reg. 2112 (1991) to be codified at 31 C.F.R. Part 575,
            as amended,  all within the  meaning of said Regulations  or of
            any regulations, interpretations or  rulings issued thereunder,
            or sail in Cuban waters or enter any Cuban port for any purpose
            or engage  in any  transaction that  violates any  provision of
            said Regulations or that violates  any provision of the Iranian
            Transactions Regulations, 31  C.F.R. Part 560, as  amended, the
            Foreign  Funds  Control  Regulations, 31  C.F.R.  Part  520, as
            amended, the  Transaction Control  Regulations, 31 C.F.R.  Part
            505, as amended, the Haitian Transaction Regulations, 31 C.F.R.
            Part 580, as  amended, the Foreign Assets  Control Regulations,
            31 C.F.R. Part 500,  as amended, or Executive Orders 12810  and
            12831; if  such transaction  or violation would (i)  expose the
            Mortgagee to  any penalty,  sanction or  investigation or  (ii)
            jeopardize the  lien created by  this Mortgage or (iii)  have a
            material adverse  effect on the  Owner or the operation  of the
            Rig;

      (U)   shall not  cause or permit the Rig to be operated in any manner
            contrary  to law, shall not abandon the  Rig in a foreign port,
            shall  not engage in  any unlawful trade or  violate any law or
            carry   any  cargo  that  shall  expose  the  Rig  to  penalty,
            forfeiture or capture, and shall not do, or suffer or permit to
            be done,  anything which  can  or may  injuriously  affect  the
            registration  or  enrollment  of  the  Rig  under  the  laws of
            Australia and  will at all  times keep the Rig  duly documented
            thereunder.

6.    (A)   The Mortgagee shall without prejudice  to its other rights  and
            powers hereunder be entitled (but not bound) at any time and as
            often as may be necessary to take any  such action as it may in
            its  discretion think  fit for  the purpose  of  protecting the
            security  created  by  the  Credit  Agreement,  the  Subsidiary
            Guaranty and other Credit Documents and each  and every expense
            or liability so incurred  by the Secured Creditors in or  about
            the protection of the security shall be repayable  to it by the
            Owner on demand  together with interest thereon  at the Default
            Rate from  the  date  whereon such  expense  or  liability  was
            incurred by  the Mortgagee until the date of actual receipt (as
            well after as before any judgment).

      (B)   Without prejudice to the generality of the foregoing:

            (i)   In every case  that the provisions of Clause  5(A) hereof
                  or any  of them shall not be complied with, the Mortgagee
                  shall be at liberty  to effect and thereafter to maintain
                  all such  insurances upon the Rig as in its discretion it
                  may think fit;

            (ii)  In the event that  the provisions of Clause 5(C) or  5(D)
                  hereof  or any  of them shall  not be complied  with, the
                  Mortgagee shall be at liberty to arrange for the carrying
                  out of  such repairs and surveys as it may deem expedient
                  or necessary;

            (iii) In the event that the provisions of Clause 5(F) hereof or
                  any of  them shall  not be  complied with, the  Mortgagee
                  shall be  at liberty to pay and discharge all such debts,
                  damages and liabilities  as are therein mentioned  and to
                  take  any  such measures  as  it  may deem  expedient  or
                  necessary  for the purpose of securing the release of the
                  Rig.

            Each  and  every  expense  or  liability  so  incurred  by  the
            Mortgagee shall be  recoverable, together with interest  at the
            Default Rate, from the Owner as provided herein.

7.    Upon  the happening of  any of the  following events (the  "Events of
      Default")  the  security  created  by   this  Mortgage  shall  become
      immediately enforceable:

      (A)   The owner does  not pay to the  Mortgagee forthwith any sum  of
            money payable under the Subsidiary Guaranty or the other Credit
            Documents.

      (B)   If the Owner is in breach of the covenants contained in Clauses
            5A, 5B, 5C, 5F, 5G, 5H, 5I, 5K, 5L, 5M, 5N or 5O.

      (C)   If the  Owner is in breach of any of the other covenants, terms
            and conditions hereof and  such breach is not remediable or  if
            it is  capable  of being  remedied,  the same  is not  remedied
            within  10  days  of  receipt  of  notice  from  the  Mortgagee
            requesting remedial action.

      (D)   It becomes  impossible or unlawful for the Owner to fulfill any
            of the covenants  and obligations  contained in the  Subsidiary
            Guaranty or  the other Credit Documents or for the Mortgagee to
            exercise  the rights  or any  of them  vested in  it under  the
            Credit Documents or otherwise.

      (E)   Anything is done or suffered or omitted to be done by the Owner
            which  in the  reasonable opinion of the  Mortgagee may imperil
            the security created  by the  Subsidiary Guaranty or the  other
            Security Documents.

      (F)   An  Event  of  Default under  the Credit  Agreement  shall have
            occurred and be continuing.

8.    Upon  the  security  created by  this  Mortgage  becoming immediately
      enforceable  pursuant to Clause 7 hereof the  Mortgagee may by notice
      of default given to the Owner declare the Obligations to be forthwith
      due and  payable and the Mortgagee shall become forthwith entitled as
      and when it may see fit to put into force and exercise all the powers
      possessed by it as mortgagee of the  Rig and chargee of the Rig,  the
      insurances and the Earnings and in particular:

      (A)   To exercise  all of the rights and remedies given to mortgagees
            by the laws of the Commonwealth of Australia and the States and
            Territories  of Australia or  other applicable  laws, including
            the right to cause the Rig to be arrested and  sold by judicial
            authority.

      (B)   To take possession of the Rig.

      (C)   To  require  that  all policies,  contracts  and  other records
            relating to the Insurances or any of them (including details of
            and correspondence concerning outstanding  claims) be forthwith
            delivered  to  such   adjusters  and/or  brokers  and/or  other
            insurers as the Mortgagee may nominate.

      (D)   To  collect, recover, compromise and give  a good discharge for
            all claims  then outstanding  or thereafter  arising under  the
            Insurances and to  take over  or institute (if necessary  using
            the  name of  the  Owner) all  such  proceedings  in connection
            therewith as the  Mortgagee in  its absolute discretion  thinks
            fit  and  to permit  any  brokers  through whom  collection  or
            recovery  is  effected  to  charge  the  usual  brokerage  fees
            therefor.

      (E)   To discharge,  compound, release  or compromise claims  against
            the Owner in  respect of the Rig  which have given or  may give
            rise to any  charge or lien on  the Rig or which  are or may be
            enforceable by proceedings against the Rig.

      (F)   To  sell the  Rig or  any share therein  with or  without prior
            notice to  the Owner by  public auction or private  contract at
            home or  abroad and  upon such  terms as  the Mortgagee  in its
            absolute discretion may  determine with  power to postpone  any
            such sale and without being answerable for  any loss occasioned
            by such sale or resulting from postponement thereof and  itself
            to purchase the Rig  at any such public auction and  to set off
            the purchase price against all or any part of the Obligations.

      (G)   Pending sale  of the Rig to manage, insure, maintain and repair
            the  Rig and to employ or lay up the Rig in such manner and for
            such period as  the Mortgagee in its  absolute discretion deems
            expedient and for the purposes aforesaid the Mortgagee shall be
            entitled  to  do all  acts and  things incidental  or conducive
            thereto  and  in  particular to  enter  into  such arrangements
            respecting the  Rig, her  insurance,  management,  maintenance,
            repair, classification and employment in all respects as if the
            Mortgagee  were  the  owner  of  the   Rig  and  without  being
            responsible for any loss thereby incurred.

      (H)   To recover  from the Owner on demand any  such losses as may be
            incurred by the Mortgagee in or about the exercise of the power
            vested  in  the  Mortgagee   under  sub-clause (G)  above  with
            interest thereon  at the Default  Rate from the date  when such
            losses were  incurred by the Mortgagee until the date of actual
            receipt (as well after as before any judgment).

      (I)   To recover  from the Owner on demand all expenses, payments and
            disbursements  incurred  by  the  Mortgagee   in  or  about  or
            incidental to the exercise by it of any of the powers aforesaid
            together with interest  thereon at  the Default  Rate from  the
            date  when  such  expenses,  payments   or  disbursements  were
            incurred by  the Mortgagee until the date of actual receipt (as
            well after as before any judgment).

PROVIDED ALWAYS that  upon any sale of the Rig or any  share therein by the
Mortgagee pursuant to sub-clause (F) above the purchaser shall not be bound
to see or inquire  whether the Mortgagee's power of sale has  arisen in the
manner herein provided and the sale of the Rig shall be deemed to be within
the power  of the  Mortgagee  and the  receipt  of the  Mortgagee  for  the
purchase  money shall effectively discharge the purchaser thereof who shall
not be concerned with the manner of application  of the proceeds of sale or
be in any way answerable therefor.

9.    Upon  the  security  created by  this  Mortgage  becoming immediately
      enforceable  pursuant  to clause  7  hereof,  the Mortgagee  shall be
      entitled  to appoint  a receiver or  manager or receiver  and manager
      (the  "Receiver") of  the Rig  and  the freights,  hire,  insurances,
      revenues, income  and profits due or  to become due  and arising from
      the operation  of the Rig.   Any  Receiver so appointed shall  be the
      agent of  the Owner unless  at any  time otherwise  specified by  the
      Mortgagee.    The   Owner  shall  be   solely  responsible   for  the
      remuneration, costs  and expenses of the Receiver.  The Mortgagee may
      at  any time terminate the appointment  of the Receiver.  In addition
      to all the rights and powers conferred on  the Receiver at law and in
      equity, a Receiver shall  be entitled to exercise  all of the  powers
      and rights  conferred upon the  Mortgagee under this Mortgage  or any
      other Credit Document.

10.   (a)   All moneys received by the  Mortgagee in respect of any sale by
            it of the Rig or any share therein or otherwise pursuant to the
            provisions of this Mortgage shall be place to pay or retain all
            such  payments, disbursements,  expenses and  losses whatsoever
            (together with interest thereon as provided herein) as may have
            been incurred by the Mortgagee in or about or incidental to the
            exercise  by  the  Mortgagee  of  the  powers  applied  in  the
            following manner:

            (i)   first, to the payment  of all amounts owing the Mortgagee
            of the type described in clauses (ii) and (iii) of Recital 5;

            (ii)  second, to the extent moneys remain after the application
            pursuant to  the preceding clause  (i), an amount equal  to the
            outstanding Obligations shall be paid  to the Secured Creditors
            as provided  in Clause  10.01(c),  with each  Secured  Creditor
            receiving an amount equal to such Obligations held by it or, if
            the   proceeds  are  insufficient  to  pay  in  full  all  such
            Obligations,  its Pro  Rata  Share (as  defined  below)  of the
            amount remaining to be distributed; and

            (iii) third, to the extent moneys  remain after the application
            pursuant  to the preceding clauses  (i) and (ii), and following
            the termination of  this Mortgage pursuant to  Clause 3.01, any
            surplus  then remaining shall  be paid  to the  Owner, subject,
            however, to the rights of the holder of any then  existing Lien
            of   which   the   Mortgagee   has   actual   notice   (without
            investigation).

      (b)   For purposes of this Mortgage "Pro Rata Share" shall mean, when
            calculating a Secured Creditor's portion of any distribution or
            amount in  respect of any Obligations, the amount (expressed as
            a percentage) equal to a fraction the numerator of which is the
            then unpaid amount of such Obligations owing to or held by such
            Secured  Creditor and  the  denominator of  which  is  the then
            outstanding amount of all  such Obligations.   For purposes  of
            determining the amount  payable to  each Secured Creditor,  the
            Mortgagee shall be entitled to request each Secured Creditor to
            furnish it  with written  notice of  the amount  of Obligations
            then owed to it and shall be entitled to reply upon the amounts
            stated therein in making such distribution.

      (c)   All payments required to be made to Secured Creditors hereunder
            shall be made  to the Agent under the Credit  Agreement for the
            account of the Secured Creditors.

      (d)   For purposes of  applying payments received in  accordance with
            this Clause  10.01, the  Mortgagee shall  be entitled  to reply
            upon (i)  the Agent  under the  Credit Agreement  and (ii)  the
            Secured Creditors for a determination (which the Agent and each
            Secured Creditor, by  their acceptance of the benefits  of this
            Mortgage  shall be  obligated to  provide  upon request  of the
            Mortgagee) of the  outstanding Obligations owed to  the Secured
            Creditors.  Unless it has actual knowledge (including by way of
            written notice  from a Secured Creditor)  to the contrary,  the
            Agent under  the Credit  Agreement, in  furnishing  information
            pursuant  to  the  preceding sentence,  and  the  Mortgagee, in
            acting hereunder,  shall be  entitled  to assume  that  (x)  no
            obligations  other  than  principal,  interest  and   regularly
            accruing fees are owing to any Secured Creditor.

11.   No delay  or omission of the Mortgagee to exercise any right or power
      vested  in  it under  the  Subsidiary Guaranty  or  the other  Credit
      Documents  shall impair  such right  or power  or be  construed  as a
      waiver of or an acquiescence in any default by the Owner and in event
      of the  Mortgagee at  any time agreeing  to waive  any such  right or
      power such waiver shall be revocable by the Mortgagee at any time and
      the right or power  shall thenceforth be again exercisable as  though
      there had been no such waiver.

12.   The Mortgagee shall be  entitled at any time and  as often as may  be
      expedient to delegate all or any of the powers and discretions vested
      in  it  by the  Subsidiary  Guaranty or  the  other Credit  Documents
      (including the power vested in it  by virtue of Clause 14 hereof)  in
      such manner  upon such terms and to such  persons as the Mortgagee in
      its absolute discretion may think fit.

13.   (A)   The  Owner  will  indemnify  and   save  harmless  the  Secured
            Creditors  and  each  agent  or  attorney  appointed  under  or
            pursuant  to  this  Mortgage (each  an  "Indemnitee")  from and
            against  any and  all  expenses, claims,  liabilities,  losses,
            taxes, costs, duties,  fees and  charges suffered, incurred  or
            made  by such  Secured Creditors or  such agent or  attorney in
            good faith:-

            (a)   in the  exercise or  purported  exercise of  any  rights,
                  powers or  discretions vested  in them  pursuant to  this
                  Mortgage; or

            (b)   in the preservation  or enforcement  of the rights  under
                  this Mortgage of the Mortgagee; or

            (c)   on the  release of the  Rig from the security  created by
                  this Mortgage,

      and  the Secured Creditors and each such agent or attorney may retain
      and pay all  sums in respect of the same out  of money received under
      the powers  conferred by this Mortgage.  All such amounts recoverable
      by  such  Secured  Creditor  or  such  agent  or  attorney  shall  be
      recoverable on a full indemnity basis.

      (B)   Without limiting  the foregoing  Clause 13A,  the Owner  hereby
            further indemnifies  and holds  harmless  each of  the  Secured
            Creditors and their respective officers, directors,  employees,
            attorneys and agents from  and against any and all liabilities,
            losses,  obligations,  claims,  damages,  penalties, causes  of
            action, costs  and  expenses  (including,  without  limitation,
            reasonable  attorneys'  fees  and  expenses,  consultant  fees,
            investigation and laboratory fees) imposed  upon or incurred by
            or asserted against them, or any  of them, by reason of (a)  an
            actual, alleged  or threatened Environmental  Incident; (b) any
            personal injury  (including wrongful death) or  property damage
            (real or personal) or economic damage arising out of or related
            to  such Environmental  Incident;  (c) any  Environmental Claim
            brought  or  threatened,  or  settlement  reached;  or (d)  any
            violation of laws, orders, regulations, requirements or demands
            of governmental authorities relating to Hazardous Materials at,
            or discharged from the Rig.

      (C)   If,  under  any  applicable  law  or  regulation,  and  whether
            pursuant  to a  judgment being made  or registered  against the
            Owner or the liquidation of the Owner or for  any other reason,
            any payment under or  in connection with this Mortgage is  made
            or fails to be satisfied in a currency (the "payment currency")
            other than the  currency in which such payment  is due under or
            in connection with this Mortgage (the "contractual  currency"),
            then  to the  extent that the  amount of such  payment actually
            received by the Mortgagee, when  converted into the contractual
            currency at the rate of exchange, falls short of the amount due
            under or  in connection  with this  Mortgage, the  Owner, as  a
            separate  and independent obligation, shall  indemnify and hold
            harmless the Mortgagee  against the  amount of such  shortfall.
            For the purposes of this Clause C, "rate of exchange" means the
            rate at which the Mortgagee is able on the date of such payment
            (or, if  it is not  practicable for the Mortgagee)  to purchase
            the contractual  currency with the payment currency on the date
            of such payment, at the rate  of exchange as soon afterwards as
            is practicable  for the  Mortgagee to  do so)  to purchase  the
            contractual currency with  the payment currency and  shall take
            into  account any  premium  and  other costs  of exchange  with
            respect thereto.

14.   (A)   The Owner  hereby irrevocably  appoints  the Mortgagee  as  its
            attorney-in-fact for the duration of the Credit Facility Period
            for the purpose of  doing in its name all acts  which the Owner
            itself  could do  in  relation  to  the  Rig,  the  Requisition
            Compensation  and the  Insurances  and  the  Earnings  PROVIDED
            HOWEVER that  such  power shall  not  be exercisable  by or  on
            behalf of the Mortgagee  unless an Event of Default shall  have
            occurred.

      (B)   The exercise of  such power by  or on behalf  of the  Mortgagee
            shall not  put any person  dealing with the Mortgagee  upon any
            inquiry as  to whether  an Event  of Default  has occurred  nor
            shall  such person be  in any  way affected  by notice  that an
            Event of  Default  has not  occurred  and the  exercise by  the
            Mortgagee of  such power  shall be  conclusive evidence  of its
            right to exercise the same.

15.   The Owner  hereby further undertakes  at its own expense  to execute,
      sign,  perfect, do  and  (if required)  register  every  such further
      assurance, document, act or thing as in the opinion of  the Mortgagee
      may  be necessary  or desirable for  the purpose of  more effectually
      mortgaging  and  charging   the  Rig   or  perfecting  the   security
      constituted  by  the  Subsidiary  Guaranty  and  the  other  Security
      Documents.

16.   The  Owner covenants  with the Mortgagee  that it will  indemnify the
      Mortgagee and hold it harmless against any loss or damage or expenses
      which  consequent  upon a  judgment  being  obtained  or enforced  in
      respect of the non-payment  by the Owner of any amount  due under the
      Subsidiary Guaranty and the other Credit Documents  arises or results
      from any variation in rates of exchange between U.S. Dollars  and the
      currency  in which such judgment was obtained between the date of the
      said amounts  becoming due (or  the date of  the said judgment  being
      obtained as  the case may be) and the  date of actual payment thereof
      and this indemnity shall  not be affected by  any time or  indulgence
      granted to  the Owner from  time to  time and shall continue  in full
      force  and  effect  notwithstanding  any  judgment in  favor  of  the
      Mortgagee.

17.   (A)   This Mortgage shall  be construed and enforceable  according to
            the laws of the Australian Capital Territory, Australia.

      (B)   The  Owner agrees  that the  Mortgagee shall  have liberty  but
            shall  not be obliged to take  any proceedings in the Courts of
            any  country  to   protect  or  enforce  the   security  hereby
            constituted or  to enforce  any  provisions of  the  Subsidiary
            Guaranty and the other  Credit Documents or to  recover payment
            of the Obligations and  for the purpose of any proceedings  for
            the enforcement of the Subsidiary Guaranty or the other  Credit
            Documents  the Owner hereby submits  to the jurisdiction of the
            Courts of any country of the choice of the Mortgagee.

18.   All communications  provided for or permitted  hereunder shall be  in
      writing or  by telex  or telefax  confirmed in writing  and shall  be
      delivered, air mailed, telexed or telefaxed to the addresses given in
      Section 12.03 of the Credit Agreement:

19.   In accordance with section 282 of the Corporation Law (as  set out in
      section  82 of  the Corporation  Act  1989 (Western  Australia)), the
      maximum prospective liability secured by this Mortgage will be  (U.S.
      $150,000,000) One Hundred  Fifty Million  United States Dollars,  but
      this clause  shall not  limit the  amount secured  by or  recoverable
      under this Mortgage or any other Credit Document.
 
      IN WITNESS  WHEREOF Reading  & Bates (A)  Pty. Ltd.  has caused  this
Mortgage to be executed by on the day and year first above written.


THE COMMON SEAL OF            )
READING & BATES (A)           )
PTY LTD (ACN                  )
064 532 252) was              )
affixed by the authority of   )
the Board of Directors in the )
presence of:                  )


                                                                           
_______________________             _______________________         
Signature of Secretary/Director     Signature of Director


                                                                           
_______________________             _______________________
Name of Secretary/Director          Name of Director


Accepted and Agreed:

CHRISTIANIA BANK OG KREDITKASSE,
   NEW YORK BRANCH


By: ____________________________________
    Title:




                    SCHEDULE I hereinbefore referred to
                    -----------------------------------


      The offshore drilling rig "RON TAPPMEYER" of the following dimensions
and tonnages:

                  Tons Gross approx.             11,455
                  Tons Net approx.                3,436

having  Official  Number  855213  at  the Registry  of  Ships  in Canberra,
Australia.



                                SCHEDULE II

                 AUSTRALIAN SHIPPING REGISTRATION ACT 1981

Particulars under section 38(2)


1.    Name and Official Number:

      "RON TAPPMEYER", Australian Official No. 855213.

2.    The number of shares affected - 64

3.    Name and address of the mortgagor

            Reading & Bates (A) Pty. Ltd., a company organized and existing
            under  the  laws of  the  State of  Western  Australia and  the
            Commonwealth of Australia  and having its registered  office at
            66 Kings Park Road, West Perth, Western Australia.

4.    Name and address of the mortgagee:

            Christiania Bank og Kreditkasse,  New York Branch, 11 West 42nd
            Street, 7th Floor, New York, NY  10036


Signed by READING & BATES (A) PTY. LTD. by__________________________________
                                       Its:  Attorney-in-Fact



                               ACKNOWLEDGMENT


STATE OF NEW YORK     )
                      :  ss.:
COUNTY OF NEW YORK    )



      On  the   ___  day  of   April,  1996,  before  me   personally  came
________________, to me  known, who being by  me duly sworn did  depose and
say  that  he  resides   at  ___________________________;  that  he  is  an
__________________  for READING  & BATES  (A)  PTY. LTD.,  the  corporation
described in and which executed the above First Priority Mortgage; and that
he  signed his  name thereto pursuant  to authority  granted to him  by the
Board of Directors of said corporation.



                                 _________________________________
                                            Notary Public


                               ACKNOWLEDGMENT

STATE OF NEW YORK     )
                      :  ss.:
COUNTY OF NEW YORK    )


      On  the   ___  day  of   April,  1996,  before  me   personally  came
_________________, to  me known, who being by me  duly sworn did depose and
say that she resides at  __________________________________; that she is an
________________  for  CHRISTIANIA  BANK  OG KREDITKASSE,  the  corporation
described in and which executed the above First Priority Mortgage; and that
she signed her  name thereto pursuant  to authority granted  to her  by the
Board of Directors of said corporation.



                                   _________________________________
                                          Notary Public



                                                            Exhibit 10.93 


                             Dated April 30, 1996


                         READING & BATES DRILLING CO.,
                                   as Owner

                                     -and-

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                                 as Mortgagee


                                  J.W. McLEAN

                           -----------------------
                               DEED OF COVENANT
                           -----------------------

==============================================================================

                                     INDEX

CLAUSE                                                                    PAGE

1        DEFINITIONS AND INTERPRETATION                                      2
2        REPRESENTATIONS AND WARRANTIES                                      7
3        PAYMENT COVENANTS                                                   8
4        MORTGAGE                                                            9
5        PRESERVATION OF SECURITY                                            9
6        INSURANCE                                                          12
7        RIG COVENANTS                                                      14
8        PROTECTION OF SECURITY                                             18
9        ENFORCEABILITY AND MORTGAGEE'S POWERS                              18
10       APPLICATION OF MONEYS                                              20
11       FURTHER ASSURANCES                                                 21
12       POWER OF ATTORNEY                                                  22
13       INDEMNITIES                                                        22
14       EXPENSES                                                           23
15       COMMUNICATIONS                                                     24
16       ASSIGNMENTS                                                        24
17       MISCELLANEOUS                                                      24
18       LAW AND JURISDICTION                                               24

         EXECUTION

EXHIBIT 1  FORM OF CREDIT AGREEMENT
==============================================================================

THIS DEED OF COVENANT is made on the 30th day of April, 1996
BETWEEN:

(1)    READING & BATES  DRILLING CO., a corporation incorporated  in the State
       of Oklahoma having its principal office at 901 Threadneedle, Suite 200,
       Houston, Texas  77079 (the "Owner"), and

(2)    CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK BRANCH having  offices at 11
       West 42nd  Street, New  York, NY   10036,  as agent  for the Banks  (as
       hereinafter defined) (the "Mortgagee")

WHEREAS

(A)     By a Credit Agreement  dated as of April  30, 1996 (as in effect  from
time to  time the  "Credit Agreement")  among Reading  & Bates  Corporation, a
Delaware corporation ("Holdings"),  the Owner, the Banks party thereto, Credit
Lyonnais, New York  Branch, as co-agent, and Christiania  Bank og Kreditkasse,
New York Branch, (the  "Agent") (the form  of which Credit Agreement  together
with  Exhibit B  thereto but  without  the remaining  attachments is  attached
hereto as Exhibit 1),  it was agreed among  other things that the  Banks would
make available  to the Owner upon the terms and conditions therein described a
reducing revolving credit facility (the  "Facility") in an aggregate amount at
any  one  time  outstanding  of  One  Hundred  Million  United States  Dollars
(US$100,000,000) providing  for the making  of Loans and  the issuance of  and
participations in Letters of Credit as contemplated therein. 

(B)    The  obligations of  the  Borrower  with respect  to  the Facility  are
evidenced by the Credit Agreement and the other Credit Documents including the
promissory notes of the Borrower payable  to the order of the respective Banks
(each a  "Note" and, collectively, the "Notes") (the form of which is attached
as Exhibit B to the Credit Agreement). 

(C)    It  is a condition  precedent to the Banks  advancing amounts under the
Credit  Facility  to the  Owner  that the  Owner  shall  execute, deliver  and
register a statutory mortgage in favor of the Mortgagee over sixty four sixty-
fourth shares in the Rig (as hereinafter defined) and shall  enter into a Deed
of Covenant supplemental thereto in the form of this Deed.

(D)    The  Owner has executed in favor  of the Mortgagee a statutory mortgage
in account current form  bearing the same date as this Deed and constituting a
first mortgage of sixty four sixty-fourth shares in the  said Rig and the said
statutory mortgage  and  this Deed  are  each entered  into  by the  Owner  in
consideration  of the  Banks agreeing, at  the request  of the  Owner, to make
Loans  to the Owner and  issue Letters of Credit for  the account of the Owner
under the Credit  Facility and as a  condition thereto and for other  good and
valuable consideration provided  by the Banks (the sufficiency  and receipt of
which the Owner hereby acknowledges).  The Mortgage and this Deed of Covenants
is made  for the benefit of the Mortgagee  and the other Secured Creditors (as
hereinafter defined) to secure (i) the full and prompt payment when due of (x)
the principal of and interest  on the Notes issued, and Loans made,  under the
Credit Agreement, and  all reimbursement obligations and Unpaid  Drawings with
respect to the Letters of Credit issued under the Credit Agreement and (y) all
other obligations and indebtedness (including without limitation, indemnities,
Fees and interest  thereon) of the Borrower to the  Secured Creditors, whether
now existing or hereafter incurred under, arising out of or in connection with
the  Credit  Agreement  and the  other  Credit  Documents  (including, without
limitation, the Mortgage and  this Deed of Covenants) and  the due performance
and  compliance  by the  Borrower  with  all  of  the  terms,  conditions  and
agreements contained  in the Credit  Agreement and the other  Credit Documents
(including, without limitation, the Mortgage and this Deed of Covenants); (ii)
any  and all sums advanced  by the Secured Creditors  in order to preserve the
Collateral (as hereinafter  defined) or preserve its security  interest in the
Collateral; (iii)  in  the  event of  any  proceeding for  the  collection  or
enforcement of any  indebtedness, obligations, or liabilities  of the Borrower
referred to in clause (i) above, after an Event of Default shall have occurred
and  be continuing,  the reasonable  expenses of  the Mortgagee  of re-taking,
holding, preparing  for sale or  lease, selling or  otherwise disposing  of or
realizing on the Collateral, or of any exercise by the Mortgagee of its rights
hereunder,  together  with  reasonable  attorneys'  fees  of  counsel  to  the
Mortgagee and  court costs; and (iv) all amounts  paid by any Indemnitee as to
which  such Indemnitee has the right to  reimbursement under Clause 13 of this
Deed  of  Covenants  (all such  obligations,  liabilities,  sums  and expenses
referred to  in clauses (i) through (iv)  above being collectively referred to
as the "Obligations").   It is acknowledged and agreed  that the "Obligations"
shall  include extensions  of credit  of  the types  described above,  whether
outstanding on the date of  this Deed or extended from time to  time after the
date of this Deed.

(E)    This  Deed is supplemental  to the said  statutory mortgage and  to the
security thereby created.

NOW THIS DEED WITNESSETH AND IT IS HEREBY AGREED

1      DEFINITIONS AND INTERPRETATION

1.1    In  this  Deed unless  the  context otherwise  requires,  the following
expressions shall have the following meanings:

       "Agent" shall have the same meaning  for such term as set forth  in the
       Credit Agreement;

       "Bank" means any lender listed from time to time Annex 1  to the Credit
       Agreement (collectively, the "Banks");

       "Business  Day" shall have the same meaning  for such term as set forth
       in the Credit Agreement;

       "Collateral Assignment of Insurances"  means the Collateral  Assignment
       of Insurance in  respect of the Rig  executed or to be  executed by the
       Owner in favor of the Agent;

       "Commitment" shall have the same meaning  for such term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the Credit  Agreement, dated as of  April 30,
       1996, among  Holdings, the Owner,  the Banks, Credit Lyonnais  New York
       Branch, as  co-agent, and the  Agent first referred  to in Recital  (A)
       hereto;

       "Credit Documents" shall have the meaning for such term as set forth in
       the Credit Agreement;

       "Credit Facility Period"  shall mean the period commencing  on the date
       hereof and ending on the date the Total Commitments have terminated, no
       Letters  of Credit  remain outstanding  and  the Loans  and the  Unpaid
       Drawings  together with  interest, fees and  all other  obligations are
       paid in full; 

       "Credit Party" shall have the meaning for such term as set forth in the
       Credit Agreement;

       "Default Rate" shall mean the rate of interest calculated in accordance
       with Section 1.07(b) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any  and all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance  or  violation,  investigations (other  than
       internal reports prepared by Holdings or any of its Subsidiaries solely
       in the ordinary course of such Person's business and not in response to
       any  third party action or request of any kind) or proceedings relating
       in  any way  to any  Environmental  Law or  any permit  issued, or  any
       approval given, under any such Environmental Law (hereafter, "Claims"),
       including,  without limitation, (a) any  and all Claims by governmental
       or regulatory authorities for enforcement, cleanup,  removal, response,
       remedial  or  other  actions  or  damages  pursuant to  any  applicable
       Environmental Law,  and (b)  any  and all  Claims  by any  third  party
       seeking   damages,   contribution,  indemnification,   cost   recovery,
       compensation  or injunctive  relief resulting from  Hazardous Materials
       arising  from alleged injury  or threat of injury  to health, safety or
       the environment.

       "Environmental  Incident"  means  (i) any  release  of  Environmentally
       Sensitive  Material   from  the  Rig,   (ii)  any  incident   in  which
       Environmentally Sensitive Material is released from a vessel other than
       the Rig  and which involves  collision between the  Rig and  such other
       vessel or  some other  incident of navigation  or operation,  in either
       case, where the Rig or the Owner  are actually or allegedly at fault or
       otherwise  liable (in whole or in part)  or (iii) any incident in which
       Environmentally Sensitive Material is released from a vessel other than
       the  Rig and  where the  Rig is  actually or  potentially liable  to be
       arrested as a result and/or where the Owner is actually or allegedly at
       fault or otherwise liable (and, in each such case, "release" shall mean
       disposing,   discharging,  injecting,   spilling,  leaking,   leaching,
       dumping, emitting,  escaping, emptying, seeping, placing  and the like,
       into or upon any  land or water or air, or  otherwise entering into the
       environment);

       "Environmental   Laws"   means   all  applicable   laws,   regulations,
       conventions  and  agreements   whatsoever  relating  to   pollution  or
       protection of  the environment (including, without  limitation, the Oil
       Pollution  Act of 1990  (33 U.S.C.   2701 et  seq.), the Comprehensive
       Environmental  Response, Compensation,  and Liability  Act of  1980 (42
       U.S.C.  9601 et seq.),  the Hazardous Materials Transportation Act (49
       U.S.C.  1801 et seq.), the  Resource Conservation and Recovery Act  of
       1976 (42 U.S.C.  6901 et seq.), the Clean Air Act (42 U.S.C.  7401 et
       seq.), the Federal  Water Pollution Control  Act (33  U.S.C.  1251  et
       seq.) and the  Toxic Substances Control Act (15 U.S.C.   2601 et seq.)
       (all  of the  foregoing as  amended),  and any  comparable laws  of the
       individual States of the United States of America or any other state or
       nation); 

       "Fees" shall have the  same meaning for such terms as set  forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a)  any petroleum or  petroleum products,
       radioactive materials,  asbestos in  any form that  is or  could become
       friable,  urea  formaldehyde  foam insulation,  transformers  or  other
       equipment  that   contained,  electric  fluid   containing  levels   of
       polychlorinated biphenyls, and radon  gas; (b) any chemicals, materials
       or substances  defined as or  included in the definition  of "hazardous
       substances,"  "hazardous  waste,"   "hazardous  materials,"  "extremely
       hazardous  waste,"  "restricted hazardous  waste,"  "toxic substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental Law;  and (c)  any
       other chemical, material or substance, exposure to which is prohibited,
       limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.1;

       "Insurances" includes  all policies  and contracts of  insurance (which
       expression  includes  all  entries  of  the Rig  in  a  protection  and
       indemnity association) which are from time to time taken out or entered
       into in respect of the  Rig or otherwise by  the Owner (whether in  the
       sole name  of the  Owner or in  the joint  names of  the Owner and  the
       Agent) and all benefits thereof  (including claims of whatsoever nature
       and return of premiums);

       "Interest Period"  shall have  the same  meaning for  such term as  set
       forth in Section 1.08 of the Credit Agreement;

       "Letter of  Credit" shall have  the same meaning  for such term  as set
       forth in Section 2.01 of the Credit Agreement; 

       "Loan(s)" shall have the same meaning for such term as set forth in the
       Credit Agreement;
       "Major  Casualty" means any casualty to  the Rig in respect whereof the
       claim  or the  aggregate of  the  claims against  all insurers,  before
       adjustment  for  any relevant  franchise  or  deductible, exceeds  Five
       Hundred Thousand  United States Dollars (US$500,000)  or the equivalent
       in any other currency;

       "Mortgage" means  the statutory  mortgage on the  Rig bearing  the same
       date as this Deed first referred to in Recital (D) hereto;

       "Note" means each  promissory note of the Owner referred  to in Recital
       (B) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (D) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution  Act 1990 (33  U.S.C.
       2701 et seq.), as amended;

       "Other Rigs"  means,  individually or  collectively,  each of  (i)  the
       offshore  drilling  rig  D.  R.   STEWART  owned  by  Reading  &  Bates
       Exploration Co.  ("R&B Exploration") documented under the laws and flag
       of  the  United  States  with  Official Number  626904  of  6494  gross
       registered  tons  and  5834  net  registered tons;  (ii)  the  offshore
       drilling  rig W. D. KENT owned  by R&B Exploration documented under the
       laws and flag of the United States with Official Number 583169 of 5,383
       gross registered tons and 4,185 net registered tons; (iii) the offshore
       drilling rig CHARLEY GRAVES owned  by Reading and Bates Borneo Drilling
       Co., Ltd.  documented under the laws and flag of the Republic of Panama
       with Patente Number 6618-76-CH of 5,829 gross registered tons and 1,748
       net registered tons; (iv) the offshore drilling rig RON TAPPMEYER owned
       by  Reading & Bates (A) Pty Ltd. documented  under the laws and flag of
       Australia with  Official Number 855213 of 11,455  gross registered tons
       and 3,436 net  registered tons; and (v) the offshore  drilling rig JACK
       BATES owned  by the Owner  documented under  the laws and  flag of  the
       United States with  Official Number 906283  of 19,928 gross  registered
       tons and 14,948 net registered tons;

       "Permitted  Liens"  means: (1)  liens incident  to expenses  of current
       operations, other than  for master's and crew's wages,  incurred in the
       ordinary course  of business of the  Owner and due and  payable for not
       more than thirty (30) days (or being contested in good faith,  provided
       such  liens are  not in excess  of U.S.$5,000,000.00, and  if in excess
       thereof,  then the Owner shall, upon the  written request of the Agent,
       provide a bond or other security  satisfactory to the Agent); (2) liens
       for master's  and crew's wages not  yet due and payable;  (3) liens for
       taxes, assessments,  governmental charges,  fines and penalties  not at
       the time delinquent  (unless being  contested in  good faith,  provided
       such liens  are not  in excess of  U.S.$5,000,000.00, and if  in excess
       thereof, then the  Owner shall, upon the written request  of the Agent,
       provide a bond or other security satisfactory  to the Agent); (4) liens
       for general average and salvage (including contract salvage); (5) liens
       for  claims  covered  by  valid  policies  of   insurance  meeting  the
       requirements of  Clause 6 hereof (except  that no lien  shall be deemed
       not  covered by insurance to the extent  insurance in force would cover
       the amount secured by the lien but for any applicable deductible amount
       approved by the Agent); (6)  liens arising pursuant to any judgment  or
       to an order  of attachment, distraint or similar  legal process arising
       in connection  with legal proceedings, but  only if and so  long as the
       execution or other enforcement thereof is not unstayed for more than 30
       consecutive days;  (7) any lien for  the payment or discharge  of which
       provisions satisfactory to the Agent have been made as evidenced by the
       Agent's  written consent  to such lien;  (8) any  lien in  favor of the
       Banks; and  provided that Permitted  Liens shall not include  any liens
       described  in subclauses  (1) through  (7) above  unless they:  (i) are
       subordinate to the lien  of this Mortgage or (ii) constitute a maritime
       lien which would  in any event be entitled as such to priority over the
       Mortgage under the United States shipping laws or other applicable laws
       relating to the Rig's trading pattern.  Nothing herein shall  be deemed
       a waiver of the priority preferred lien status of this Mortgage;

       "Protection  and  indemnity risks"  means  the usual  risks  covered by
       protection and indemnity associations of international repute including
       the proportion not recoverable in  case of collision under the ordinary
       running-down clause (unless such is recoverable under the relevant hull
       and machinery coverage);

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the Credit Facility  Period by reason of requisition for
       title  or other  compulsory acquisition  of the  Rig otherwise  than by
       requisition for hire;

       "Rig" means the  whole of the offshore drilling  J.W. McLEAN documented
       under  the laws and flag of the  Bahamas with Official Number 715954 of
       9199.01  gross registered  tons  and 7267.22  net  registered tons  and
       includes  any share  or interest  therein  and her  engines, machinery,
       boats, tackle, outfit,  spare gear, fuel,  consumable or other  stores,
       belongings and appurtenances whether on board or ashore and whether now
       owned  or  hereafter  acquired  (but  excluding  therefrom  any  leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Banks, the Letter  of Credit Issuer
       and the Agent under and as defined in the Credit Agreement;

       "Security Documents" shall have  the same meaning for such term  as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a   mortgage,  charge  (whether  fixed  or
       floating), pledge, lien,  hypothecation, assignment, trust arrangement,
       title retention or  other security interest or arrangement  of any kind
       whatsoever;

       "Taxes" shall have the same meaning  for such term as set forth in  the
       Credit Agreement;

       "Total Commitment" shall  have the  same meaning for  such term as  set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive,  arranged, agreed, or
       compromised Total  Loss of the  Rig; (b) the  requisition for title  or
       other compulsory acquisition or forfeiture of the Rig otherwise than by
       requisition  for hire; (c)  the capture, seizure,  arrest, detention or
       confiscation  of  the Rig  by any  government or  by persons  acting or
       purporting  to act  on  behalf of  any  government  unless the  Rig  be
       released from such capture, seizure, arrest or  detention within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid Drawing" shall have the same meaning for such term as set forth
       in the Credit Agreement;

       "War Risks"  includes the risk of mines and all risks excluded from the
       standard  form of  English  marine policy  by the  free of  capture and
       seizure clause.

1.2    In Clause 6.1:

       "excess risks"   means  the proportion of  claims for  general average,
       salvage  and  salvage  charges  not  recoverable  under  the  hull  and
       machinery  policies in respect of the Rig in consequence of her insured
       value  being less than the value  at which the Rig  is assessed for the
       purpose of such claims;

       "protection and  indemnity risks"   means the usual risks  covered by a
       protection and  indemnity association  managed in London  including the
       proportion (if any) of any sums  payable to any other person or persons
       in  case of  collision which  are not  recoverable under  the  hull and
       machinery policies by  reason of the incorporation therein  of Clause 1
       of  the  Institute Time  Clauses  (Hulls)  (1/10/83) or  the  Institute
       Amended Running Down Clause (1/10/71) or any equivalent provision;

1.3    Except  where  otherwise  expressly  provided  or  unless  the  context
otherwise  requires, words  and expressions  defined in  the Credit  Agreement
shall bear the same meanings when used in this Deed.

1.4    This Deed shall be read together with the other Security Documents.

1.5    Notwithstanding that this Deed is supplemental to the Mortgage it shall
continue in full force and effect after any discharge of the Mortgage.

1.6    In this Deed:

       (a)  Clause headings are  inserted for convenience  only and shall  not
            affect  the  construction  of  this  Deed  and,  unless  otherwise
            specified, all references to Clauses are to clauses of this Deed;

       (b)  unless the context otherwise requires, words denoting the singular
            number shall include the plural and vice versa;

       (c)  references to persons  include references to bodies  corporate and
            unincorporate;

       (d)  references to assets include property,  rights and assets by every
            description;

       (e)  references to  any document are to  be construed as  references to
            such document as amended or supplemented from time to time; and

       (f)  references   to  any   enactment   shall  include   re-enactments,
            amendments and extensions thereof.

2      REPRESENTATIONS AND WARRANTIES

2.1    The Owner hereby represents and warrants to the Mortgagee that:

       (a)  the Owner  is the sole  legal and  beneficial owner of  sixty four
            sixty-fourths shares of and in the Rig and none of the said shares
            is subject  to any Security Interest  (save as constituted  by the
            Permitted Liens, the Mortgage and this Deed); 

       (b)  the  Owner has  not  sold or  transferred, or  agreed  to sell  or
            transfer, the Rig or any share therein; 

       (c)  the Owner  has full  power and  authority to  mortgage sixty  four
            sixty-fourth  shares  of and  in  the  Rig  as  security  for  the
            Obligations; 

       (d)  the Owner is a corporation duly organized and validly existing and
            in good standing under the laws of the State of Oklahoma;

       (e)  the  Owner  has complied  with  all statutory  and  other material
            requirements relating to the ownership, registration and operation
            of the Rig; 

       (f)  the  Owner  has  taken  all  necessary  action  to  authorize  the
            execution  and delivery of  the Mortgage  and this Deed,  and this
            Deed constitutes the  legal, valid and  binding obligation of  the
            Owner enforceable against the  Owner in accordance with its  terms
            (except   to  the   extent  limited   by  applicable   bankruptcy,
            reorganization,  insolvency, moratorium  or other laws  of general
            application relating to or affecting the enforcement of creditors'
            rights  as  from time  to  time in  effect  and general  equitable
            principles).  The  Mortgage when filed with the Bahamian Registrar
            of Ships will create a legal, valid and enforceable first priority
            mortgage lien on the Rig;

       (g)  the entry into and performance by the Owner of this Deed  does not
            and will  not during  the Credit  Facility Period  violate in  any
            respect (i)  any law or regulation of any governmental or official
            authority or  body, or (ii) any  of the constitutive  documents of
            the Owner including  the Certificate of Incorporation  or By-laws,
            as  amended from time  to time,  or (iii) any  material agreement,
            contract  or other  undertaking to which  the Owner is  a party or
            which is binding upon the Owner or any of its assets;

       (h)  all consents, licenses,  approvals and authorizations required  in
            connection  with  the  entry   into,  performance,  validity   and
            enforceability of  this  Deed and  the  transactions  contemplated
            hereby and thereby  have been obtained and  are in full  force and
            effect  and will  be  so  maintained  during the  Credit  Facility
            Period; 

       (i)  save for such registrations and filings as are referred to in this
            Deed,   it   is  not   necessary   for  the   legality,  validity,
            enforceability or admissibility  in evidence of this Deed  that it
            or any document relating thereto be registered, filed, recorded or
            enrolled with any court or  authority in any relevant jurisdiction
            or that any stamp, registration or similar taxes be paid on  or in
            relation to this Deed; and

       (j)  the Owner is fully familiar with  and agrees to all the provisions
            of all agreements relating to the Obligations.

2.2    The Owner hereby further represents and warrants to the Mortgagee that:

       (a)  all applicable  Environmental  Laws  and  Environmental  Approvals
            relating to the Rig, its operation and management and the business
            of the Owner (as now conducted and as reasonably anticipated to be
            conducted in the future) have been complied with; and

       (b)  no Environmental Claim  has been  made or  threatened against  the
            Owner or  the Approved Manager or otherwise in connection with the
            Rig; and

       (c)  no  Environmental  Incident  which has  resulted,  or  which could
            reasonably  be expected to  result, in  an Environmental  Claim in
            excess of US$200,000 has occurred.


2.3    The representations  and warranties of the Owner  set out in Clause 2.1
and Clause 2.2 shall survive the execution of this Deed and shall be deemed to
be repeated throughout the Credit Facility Period at the time of the making of
each Loan  and the issuance of each Letter of Credit with respect to the facts
and circumstances existing at each such time, as if made at each such time.

3      PAYMENT COVENANTS

3.1    The Owner hereby covenants with the Secured Creditors:

       (a)  to  pay  all such  expenses,  claims, liabilities,  losses, costs,
            duties, fees, charges or other moneys as  are stated in the Credit
            Agreement  and/or this  Deed  to be  payable  by the  Owner to  or
            recoverable from the Owner by the Secured Creditors or any of them
            (or in respect of which  the Owner agrees in the  Credit Agreement
            and/or this Deed to indemnify any of the Secured Creditors) at the
            times and in the manner  specified in the Credit Agreement  and/or
            this Deed; and

       (b)  to pay  interest on  any amount  payable  by the  Owner under  the
            Credit Agreement and  on any  such expenses, claims,  liabilities,
            losses, costs,  duties, fees, charges or other  moneys referred to
            in  Clause  3.1(a) from  the  date on  which  the relevant  amount
            becomes payable under the Credit Agreement or such expense, claim,
            liability, loss, cost, duty, fee, charge or other money is paid or
            incurred  by  any  Secured  Creditor  until  the  date of  payment
            reimbursement thereof to  such Secured Creditor (as well  after as
            before judgment) at the Default Rate; and

       (c)  to pay each  and every other sum  of money which may  be or become
            owing  to the any Secured  Creditor under this  Deed and the other
            Credit Documents to which the Owner is or  is to be a party at the
            times and in the manner specified herein or therein.

4      MORTGAGE

4.1    By way  of security  for  the Obligations  the  Owner with  full  title
guarantee hereby mortgages and  charges and agrees to  mortgage and charge  to
and in favor of the Mortgagee all its rights, title and interest,  present and
future, to and in the Rig.

4.2    The  Owner covenants with  the Mortgagee that  it will not  at any time
during the Credit Facility Period without  the previous consent in writing  of
the Mortgagee  (and  then only  subject to  such terms  as  the Mortgagee  may
impose):

       (a)  create or suffer the  creation of any  Security Interest on or  in
            respect  of the Rig  or any share  therein in favor  of any person
            other than the Mortgagee  or unless the same is being contested in
            good  faith  by proceedings  diligently  conducted in  relation to
            which the Owner has established an adequate reserve; or

       (b)  sell, agree to sell or otherwise  dispose of the Rig or any  share
            therein.

4.3    The Owner shall remain liable to perform all the obligations assumed by
it  in relation to the Rig  and the Mortgagee shall  be under no obligation of
any kind whatsoever in respect thereof or be under any liability whatsoever in
event  of any  failure by  the  Owner to  perform its  obligations  in respect
thereof.

4.4    On  the date on  which the Credit  Agreement and all  Letters of Credit
shall  have  been  terminated,  when  no  Note  remains  outstanding  and  all
Obligations shall have been  irrevocably paid in  full, the Mortgage and  this
Deed of  Covenants shall  terminate,  and the  Mortgagee  at the  request  and
expense  of  the  Owner,  will execute  and  deliver  to  the  Owner a  proper
instrument or instruments  acknowledging the  satisfaction and termination  of
the Mortgage and  this Deed of Covenants,  and will duly assign,  transfer and
deliver to  the  Owner (without  recourse and  without  any representation  or
warranty) such of  the Rig as  may remain in the  possession of the  Mortgagee
together with any moneys at the time held by the Mortgagee hereunder.

5      PRESERVATION OF SECURITY

5.1    It is declared and agreed that:

       (a)  the  security created by the Mortgage and  this Deed (or either of
            them) shall be held by the  Mortgagee as a continuing security for
            the  performance  of the  Obligations  and  that the  security  so
            created shall  not  be satisfied  by any  intermediate payment  or
            satisfaction of any part of the Obligations;

       (b)  the security  so created shall be in addition  to and shall not in
            any way be  prejudiced or affected  by any  of the other  Security
            Documents;

       (c)  the  Mortgagee shall  not be  bound to  enforce  any of  the other
            Security Documents before  enforcing the  security created by  the
            Mortgage and this Deed (or either of them);

       (d)  no delay or  omission on the  part of the Mortgagee  in exercising
            any  right, power or remedy  under the Mortgage  and this Deed (or
            either of  them) shall  impair such right,  power or remedy  or be
            construed as  a waiver  thereof nor  shall any  single or  partial
            exercise of any such right,  power or remedy preclude any  further
            exercise thereof  or the  exercise of  any other  right, power  or
            remedy.  The rights powers and remedies provided in this Deed  are
            cumulative  and not exclusive  of any rights,  powers and remedies
            provided by law  and may  be exercised  from time to  time and  as
            often as the Mortgagee may deem expedient; and

       (e)  any waiver  by the  Mortgagee of  any terms  of this  Deed or  any
            consent given  by  the Mortgagee  under this  Deed  shall only  be
            effective if given  in writing and then  only for the  purpose and
            upon the terms for which it is given.

5.2    Any settlement or discharge under the Mortgage and this Deed (or either
of them) between  the Mortgagee  and the  Owner shall be  conditional upon  no
security or payment  to the Secured Creditors  by any person being  avoided or
set-aside or  ordered to be refunded or reduced  by virtue of any provision or
enactment  relating to  bankruptcy, insolvency, administration  or liquidation
for  the time  being in  force and,  if such condition  is not  satisfied, the
Mortgagee shall be entitled  to recover from the Owner on  demand the value of
such security  or the  amount of any  such payment  as if  such settlement  or
discharge had not occurred.

5.3    The rights of the  Secured Creditors under the  Mortgage and this  Deed
and the security thereby and hereby  constituted shall not be affected by  any
act, omission, matter or thing which, but for this provision, might operate to
impair, affect or  discharge such rights  and security, in  whole or in  part,
including without limitation, and  whether or not known to  or discoverable by
any person:

       (a)  any time or waiver granted to or composition with any person; or

       (b)  the  taking,  variation,  compromise,  renewal  or release  of  or
            refusal or neglect to perfect  or enforce any rights, remedies  or
            securities against any person; or

       (c)  any   legal   limitation,   disability,   incapacity   or    other
            circumstances relating to any person; or

       (d)  any amendment or  supplement to any of the Credit Documents or any
            other document or security; or

       (e)  the dissolution, amalgamation, reconstruction or reorganisation of
            any person; or

       (f)  the unenforceability, invalidity or frustration of any obligations
            of  any person  under any  of the  Credit Documents  or any  other
            document or security.

5.4    Until  the   Obligations  have   been  satisfied   unconditionally  and
irrevocably paid and  discharged in full to the satisfaction of the Mortgagee,
the Owner shall not by virtue of any payment made hereunder on account of  the
Obligations  or by virtue  of any enforcement  by the Mortgagee  of its rights
under, or the security constituted by, the Mortgage and this Deed or by virtue
of  any relationship between  or transaction involving  any person in  any way
whatsoever and  whether or not such  relation or transaction  shall be related
to, or in  connection with, the  subject matter of  the Credit Agreement,  the
Mortgage and/or this Deed):

       (a)  exercise  any  rights of  subrogation in  relation to  any rights,
            security or moneys held or  received or receivable by the  Secured
            Creditors or any other person; or

       (b)  exercise any  right of contribution  from any co-surety  liable in
            respect of such moneys and  liabilities under any other  guaranty,
            security or agreement; or

       (c)  exercise any right  of set-off or counterclaim against  any person
            or any co-surety; or

       (d)  receive, claim or have the  benefit of any payment,  distribution,
            security or indemnity from any person or any co-surety; or

       (e)  unless so  directed by the Mortgagee (when the Owner will prove in
            accordance  with  such directions),  claim  as a  creditor  of any
            person or any co-surety in competition with the Secured Creditors.


       The Owner shall  hold in trust for  the Mortgagee and forthwith  pay or
transfer (as  appropriate) to  the Mortgagee  any such  payment (including  an
amount equal to  any such set-off), distribution or benefit  of such security,
indemnity or claim in fact received by it.

5.5    Until  the  Obligations  have  been   unconditionally  and  irrevocably
performed in full to the satisfaction  of the Mortgagee, the Mortgagee may  at
any  time keep in  a separate  account for as  long as  it may think  fit, any
moneys received,  recovered or realised under  the Mortgage and this  Deed (or
either of them) or under  any other guarantee, security or agreement  relating
in  whole or  in part  to  the Secured  Indebtedness without  being  under any
intermediate obligation to  apply the same or  any part thereof in  or towards
the discharge of such amount.

5.6    The  Owner  unconditionally and  irrevocably  agrees that  if  any sums
hereby  secured are  not recoverable on  the basis  of a guaranty  (whether by
reason of legal limitation, illegality, disability or incapacity on or of  any
person or  by reason of  any other  fact or circumstance,  and whether  or not
known to or  discoverable by any person),  then the Owner will,  as a separate
and  independent stipulation  and as  a primary  obligor, pay  to the  Secured
Creditors on demand an  amount or amounts equal to the amount or amounts which
the Owner would have been liable to pay but for such irrecoverability and will
on  demand indemnify the Mortgagee  against any loss  or liability suffered or
incurred by the Secured Creditors as a result of such irrecoverability.

6      INSURANCE

6.1    The Owner covenants  with the Mortgagee throughout  the Credit Facility
Period that:

       (a)  The Owner shall, at its  own expense, when and so long as  the any
            Obligations  remain  outstanding,  insure  the  Rig and  keep  her
            insured, or cause  the Rig to be  insured, in lawful money  of the
            United States, in such amounts, for such risks  (including without
            limitation,  hull and  machinery/increased  value, protection  and
            indemnity risks, pollution liability, and war risks), in such form
            (including without limitation, the form of the loss payable clause
            and the designation of named  assureds) and with such first  class
            insurance  companies,   underwriters,   funds,  mutual   insurance
            associations or  clubs, as shall be reasonably satisfactory to the
            Mortgagee.   With respect  to hull  and machinery/increased  value
            insurance, including  war risk, the Owner shall insure the Rig and
            keep her insured,  or cause the Rig  to be insured, for  an amount
            which is  at least the full commercial value  of the Rig, and when
            such  amount is  aggregated  with  the  amount of  such  insurance
            coverage on  the Other  Rigs, such  aggregate amount  shall be  at
            least 110% of the Total Commitment.  The Rig  shall in no event be
            insured for an amount  less than the agreed valuation as set forth
            in the  applicable marine and war  risk policies.   Such insurance
            shall  cover marine and  war risk  perils, on hull  and machinery,
            with deductibles not in excess of US$500,000 (such deductibles not
            to apply in  the case  of Total  Loss of  the Rig),  and shall  be
            maintained  in  the  broadest  forms  available in  the  American,
            British and Scandinavian insurance markets or in such other  major
            international markets reasonably acceptable to the Mortgagee.  The
            Owner shall  maintain, or cause  to be maintained,  protection and
            indemnity or equivalent  insurance, including war risk  protection
            and indemnity coverage and  coverage against pollution  liability,
            in  an amount not  less than  US$100,000,000 (or, with  respect to
            pollution  liability  coverage,  such  greater  amount as  may  be
            required from time to time by the Oil Pollution Act 1990, or other
            Environmental  Laws), as and  when applicable  to the Rig  and its
            operations, through underwriters or associations acceptable to the
            Mortgagee.   In addition,  the Owner  shall, at  its own  expense,
            furnish  to  the Mortgagee  a  mortgagee's single  interest policy
            providing coverage  which,  when aggregated  with the  mortgagee's
            interest insurance  furnished to the  Mortgagee in respect  of the
            Other  Rigs, shall be in an  amount equal to at  least 110% of the
            Total  Commitment  (or  in  lieu   of  such  mortgagee's  interest
            insurance the Owner  shall cause the hull  and machinery/increased
            value  insurance  to  be  endorsed to  afford  breach  of warranty
            coverage for  the benefit  of  the Mortgagee).   Such  mortgagee's
            interest insurance and  any additional insurance policies  for the
            benefit of  the Mortgagee shall be maintained in the broadest form
            available in  the American,  British and  Scandinavian markets  or
            other  major international  markets  acceptable  to the  Mortgagee
            through underwriters acceptable  to the Mortgagee.  The  Rig shall
            not  operate in or proceed into  any area then excluded by trading
            warranties  under  its  marine  or  war risk  policies  (including
            protection   and  indemnity)   without  obtaining   any  necessary
            additional  coverage,  satisfactory  in form  and  substance,  and
            evidence of which shall be furnished, to the Mortgagee.

       (b)  The policy or policies of insurance shall be issued by responsible
            underwriters reasonably acceptable to the Mortgagee, shall contain
            conditions,    terms,   stipulations   and    insuring   covenants
            satisfactory to the Mortgagee, and shall be kept in full force and
            effect by the Owner so long as any Obligations remain outstanding.
            All such policies,  binders and other interim  insurance contracts
            shall be executed and  issued in the name of the  Owner and shall,
            to the extent required herein, provide that loss be payable to the
            Mortgagee for  distribution by  it to  itself, the  Banks and  the
            Owner as  their interests  may appear,  and shall  provide for  at
            least ten days' prior notice to  be given to the Mortgagee by  the
            underwriters  or association in  the event of  cancellation or the
            failure  of the  Owner  to pay  any  premium or  call which  would
            suspend  coverage  under the  policy  or the  payment  of a  claim
            thereunder.   Certified copies of  all such policies,  binders and
            other  interim  insurance contracts  shall  be deposited  with the
            Mortgagee.  Originals shall also  be provided upon the request  of
            the Mortgagee.   The Owner shall furnish to the Mortgagee annually
            a  detailed report signed  by a  firm of marine  insurance brokers
            satisfactory to  the Mortgagee as  to the insurance  maintained in
            respect of the Rig, as to their opinion as to the adequacy thereof
            and as to compliance with the provisions of this Clause 6.01.

            Unless  otherwise  required by  the  Mortgagee  by notice  to  the
            underwriters, although the  following insurance is payable  to the
            Mortgagee,  (i)  any loss  under  any insurance  on  the Rig  with
            respect to  protection and indemnity risks may be paid directly to
            the Owner to reimburse it for any loss, damage or expense incurred
            by it and covered  by such insurance or to the person  to whom any
            liability covered  by such insurance has been incurred and (ii) in
            the case of any loss (other than a loss covered by (i) above or by
            the  next following  paragraph of  this Clause 6.01(b))  under any
            insurance with respect to the Rig involving any damage to the Rig,
            the underwriters may pay direct  for the repair, salvage or  other
            charges involved  or, if the Owner shall have first fully repaired
            the damage or  paid all of the  salvage or other charges,  may pay
            the Owner as  reimbursement therefor;  provided, however, that  if
            such  damage  involves  a  before deductible  loss  in  excess  of
            US$1,000,000, the underwriters shall not make such payment without
            first  obtaining  the  written consent  thereto  of  the Mortgagee
            (which consent  shall not  be unreasonably  withheld).   Any  loss
            covered by this paragraph which is paid to the Mortgagee but which
            might have  been paid, in accordance  with the provisions  of this
            paragraph, directly to  the Owner or others, shall be  paid by the
            Mortgagee to, or as directed by, the  Owner and all other payments
            to the  Mortgagee of  losses covered  by this  paragraph shall  be
            applied by the Mortgagee in accordance with Clause 10.01.

            In the  event  of  an  actual  or constructive  Total  Loss  or  a
            compromised constructive Total  Loss or requisition of  title, all
            insurance payments therefor shall be  paid to the Mortgagee.   The
            Owner shall  not declare or agree  with the underwriters  that the
            Rig  is  a   constructive  or  compromised,  agreed   or  arranged
            constructive Total Loss  without the prior written consent  of the
            Mortgagee.

       (c)  In the  event of an actual or constructive  Total Loss of the Rig,
            the Mortgagee shall retain out of the insurance payments  received
            on account of such  loss any sum or  sums that shall be  or become
            owing  to  the  Secured Creditors  under  the  Security Documents,
            whether or  not the  same be then  due and payable,  together with
            accrued  interest  and  the  cost,   if  any,  of  collecting  the
            insurance, and pay the balance as provided in Clause 10. 

       (d)  The Owner shall  comply with and satisfy all  of the provisions of
            any applicable  law, regulation, proclamation  or order concerning
            financial responsibility for  liabilities imposed on the  Owner or
            the Rig with respect to  the carriage of passengers or  pollution,
            and will  maintain, or cause to be maintained, all certificates or
            other  evidence of financial responsibility  as may be required by
            any such  law, regulation, proclamation  or order with  respect to
            the trade which the Rig from time to time is engaged in.

       (e)  The Owner shall renew all insurances  as they expire and so as  to
            insure  that  there is  no  gap in  coverage,  keep the  Mortgagee
            advised  of the progress  of such  renewals, and procure  that the
            insurers shall promptly confirm in writing to the Mortgagee as and
            when each such renewal is effected.

       (f)  The Owner shall punctually pay  all premiums, calls, contributions
            or  other  sums payable  in  respect of  all  such insurances  and
            produce all relevant receipts when so required by the Mortgagee.

       (g)  The Owner  shall arrange for the  execution of such  guarantees as
            may from time to time be required  by any protection and indemnity
            or war risks association.

       (h)  The  Owner  shall not  employ  the Rig  or  suffer the  Rig  to be
            employed  otherwise  than in  conformity  with  the terms  of  the
            instruments of insurance aforesaid relative  to the Rig (including
            any  warranties,   express  or  implied,  therein)  without  first
            obtaining  the consent  of  the insurers  to  such employment  and
            complying with such requirements as  to extra premium or otherwise
            as the insurers may prescribe.

7       RIG COVENANTS

7.1    The  Owner further  covenants with  the Mortgagee  that throughout  the
Credit Facility Period the Owner will:

       (a)  keep the Rig registered in its  name as a Bahamian flag vessel  at
            the Port of Nassau  and to do or allow to  be done nothing whereby
            such registration may be forfeited  or imperilled and, if the  Rig
            shall  be provisionally as opposed to  permanently registered as a
            Bahamas vessel  as at the date of this  Deed, procure that the Rig
            be duly  permanently registered within three months of the date of
            this Deed and promptly furnish to the  Mortgagee from time to time
            such proofs as the Mortgagee may request for its satisfaction with
            respect to the Owner's compliance with this sub-clause;

       (b)  not without  the  previous consent  in  writing of  the  Mortgagee
            change  the  name or  port  of registry  of  the Rig  or  make any
            modification to  the Rig which would or might materially alter the
            structure,  type  or  performance characteristics  of  the  Rig or
            materially reduce the value of the Rig;

       (c)  keep the  Rig in a good  and efficient state  of repair consistent
            with first-class ship ownership and management  practice and so as
            to  maintain  the   highest  classification  available   from  her
            classification  society,  namely  +A1 Column  Stabilized  Drilling
            Unit,  free  of  recommendations  and  qualifications  save  those
            notified to and approved in writing by the Mortgagee or which have
            been complied  with in  accordance with their  terms and so  as to
            comply with the provisions of the Merchant ping Acts and all other
            regulations and requirements of  any government, government agency
            or other regulatory  authority (statutory or otherwise)  from time
            to  time  applicable  to  vessels  registered   at  ports  in  the
            Commonwealth of  the Bahamas and applicable to vessels of the same
            type as the Rig trading to any jurisdiction to which the  Rig may,
            subject to the provisions of this Deed, trade from time to time;

       (d)  procure that all repairs to or replacement of any damaged  worn or
            lost  parts  or equipment  be  effected in  such  manner (both  as
            regards workmanship and quality  of materials) as not to  diminish
            the value of the  Rig and not to  remove any material part  of, or
            item of equipment installed on, the Rig unless the part or item so
            removed is forthwith replaced by a suitable part or  item which is
            in the same condition as or better condition than the part or item
            removed, is free  from any Security Interest (other than Permitted
            Liens) in favor of any person other than the Mortgagee and becomes
            on installation on  the Rig the property of the  Owner and subject
            to the security constituted by the Mortgage and this Deed;

       (e)  submit the  Rig regularly to such  periodical or other  surveys as
            may be  required for classification purposes and if so required to
            supply  to the Mortgagee  copies of  all survey reports  issued in
            respect thereof;

       (f)  permit the Mortgagee by surveyors or other persons appointed by it
            for that purpose to board the Rig at all reasonable times  for the
            purpose  of  inspecting  her  condition  or  for  the  purpose  of
            satisfying themselves in  regard to  proposed or executed  repairs
            and to afford all proper facilities for such inspections;

       (g)  promptly  pay  and discharge  all  debts, damages  and liabilities
            whatsoever  which  have given  or  may give  rise  to maritime  or
            possessory  liens  (other  than  Permitted  Liens)  on  or  claims
            enforceable  against  the   Rig  and   all  tolls,  dues,   taxes,
            assessments,  governmental charges,  fines and  penalties lawfully
            charged on  or  in respect  of  the Rig  and  all other  outgoings
            whatsoever in respect of the Rig and in the event of arrest of the
            Rig pursuant to legal process, or in the event of her detention in
            exercise  or  purported exercise  of  any such  lien  or claim  as
            aforesaid, procure  the release  of the  Rig from  such arrest  or
            detention  forthwith upon  receiving notice  thereof  by providing
            bail or otherwise as the circumstances may require; 

       (h)  not  employ the  Rig  or  allow her  employment  in any  trade  or
            business  which  is  unlawful  under  the  laws  of  any  relevant
            jurisdiction or  in carrying illicit or prohibited goods or in any
            manner  whatsoever  which may  render  her liable  to destruction,
            seizure  or confiscation and  in the  event of hostilities  in any
            part of the  world (whether war be declared or not) not employ the
            Rig or suffer her employment  in carrying any contraband goods  or
            to enter or trade to any zone which is declared  a war zone by any
            government or by  the war risks insurers  of the Rig unless  there
            shall  have  been effected  by  the Owner  (at  its expense)  such
            special, additional or  modified insurance cover as  the Mortgagee
            may require;

       (i)  promptly furnish to the Mortgagee  all such information as it  may
            from  time to  time  require regarding  the  Rig, her  employment,
            position and engagements, particulars of  all towages and salvages
            and,  upon the  Mortgagee's  request  in  writing, copies  of  all
            charters  and  other  contracts for  her  employment  or otherwise
            howsoever concerning her;

       (j)  notify the  Mortgagee forthwith  by telex  or telecopy  thereafter
            confirmed by letter of:-

            (i)  any casualty to the  Rig which is or is likely  to be a Major
                 Casualty, and

            (ii) any occurrence in consequence  whereof the Rig has become  or
                 is, by the passing  of time or otherwise, likely  to become a
                 Total Loss, and

            (iii)     any requirement or recommendation made by any insurer or
                      classification  society  or by  any  competent authority
                      which is not immediately complied with, and

            (iv) any arrest of the Rig  or the exercise or purported  exercise
                 of  any lien  on the Rig  or any  requisition of the  Rig for
                 hire, and

            (v)  any  intended dry docking of  the Rig, as  to which the Owner
                 shall  give  the  Mortgagee  ten   (10)  days  prior  notice,
                 provided, that in the event  of any emergency dry docking  of
                 the Rig, the  Owner shall  immediately notify the  Mortgagee;
                 and

            (vi) any  intended deactivation or  lay-up of the  Rig (other than
                 for normal periods  of inactivity  between contracts for  the
                 Rig during which  periods the Rig remains  manned) and obtain
                 the Mortgagee's prior written consent;

       (k)  keep proper books of account in respect of the Rig and as and when
            the Mortgagee may so reasonably  require make such books available
            for inspection on behalf of the Mortgagee and furnish satisfactory
            evidence that  the wages and allotments  and the insurance  of the
            master and crew are being  regularly paid and that all  deductions
            from  crew's  wages in  respect  of  tax  and/or  social  security
            liability are being properly accounted for and that the master has
            no claim for disbursements other than those incurred by him in the
            ordinary course of trading on the voyage then in progress;

       (l)  observe the  obligations  contained in  Sections 7  and  8 of  the
            Credit Agreement  which apply  to the Rig  and the  Owner, and  in
            pursuance thereof such  obligations shall  be incorporated in  and
            deemed to form part of and this Deed mutatis mutandis; 

       (m)  not without the previous consent in writing of the Mortgagee (such
            consent  not to be  unreasonably withheld),  put the Rig  into the
            possession of any person  for the purpose of work  being done upon
            her in an  amount exceeding or likely  to exceed Two  Million Five
            Hundred  Thousand  United  States Dollars  (US$2,500,000)  (or the
            equivalent in any other  currency) unless such person  shall first
            have  given to the Mortgagee and  in terms reasonably satisfactory
            to it a  written undertaking not to  exercise any lien on  the Rig
            for the cost of such work or otherwise;


       (n)  keep the  Mortgage registered  against the  Rig as  a valid  first
            priority mortgage,  to carry on board the  Rig a certified copy of
            the  Mortgage  and  this Deed  and  to  place  and maintain  in  a
            conspicuous place in the navigation room and the Master's cabin of
            the Rig a framed printed notice  stating that the Rig is mortgaged
            by the Owner to the Mortgagee.

7.2    The  Owner further  covenants with  the Mortgagee  that throughout  the
Security Period the Owner will:

       (a)  comply, or  procure compliance  with, all  Environmental Laws  and
            Environmental  Approvals  relating to  the  Rig, its  operation or
            management and the business of the Owner from time to time;

       (b)  notify the Mortgagee forthwith upon:

            (i)  any Environmental Claim  being made  against the Owner  which
                 could reasonably be expected to  result in damages in  excess
                 of US$200,000 or otherwise in connection with the Rig; or

            (ii) any Environmental Incident occurring,

            and keep the Mortgagee advised,  in writing on such regular  basis
            and in such detail as the Mortgagee  shall require, of the Owner's
            response to such Environmental Claim or Environmental Incident.


       (c)  not sell, mortgage or transfer the Rig (other than as permitted by
            the Credit Agreement) without the written consent of the Mortgagee
            having first  been obtained, and any  such written consent  to any
            one such sale, mortgage or transfer shall not be construed to be a
            waiver of this  provision with respect to  any subsequent proposed
            sale, mortgage or transfer.   Any such sale, mortgage or  transfer
            shall be subject  to the provisions of this Mortgage  and the lien
            it creates.  The Owner shall not charter the Rig to, or permit the
            Rig to serve under any contract with, a person included within the
            definition of (i) "national" of a "designated foreign country," or
            "specially designated national" of a "designated foreign country,"
            in  the Foreign  Assets Control  Regulations  or the  Cuban Assets
            Control Regulations of  the United States Treasury  Department, 31
            C.F.R.  Parts   500  and  515,  in  each  case  as  amended,  (ii)
            "Government of  Libya",  "entity of  the Government  of Libya"  or
            "Libyan entity" in the Libyan Sanctions Regulations of the  United
            States  Treasury Department,  31 C.F.R.  Part 550, as  amended, or
            (iii) "Government  of Iraq", "entity of the Government of Iraq" or
            "Iraqi Government entity"  in the Iraqi Sanctions  Regulations, 56
            Fed. Reg.  2112 (1991) to  be codified at  31 C.F.R. Part  575, as
            amended, all  within the  meaning of  said Regulations  or of  any
            regulations, interpretations or rulings issued thereunder, or sail
            in Cuban waters  or enter any Cuban port for any purpose or engage
            in any transaction that violates any provision of said Regulations
            or  that  violates  any  provision  of  the  Iranian  Transactions
            Regulations,  31 C.F.R.  Part 560,  as amended, the  Foreign Funds
            Control  Regulations,  31   C.F.R.  Part  520,  as   amended,  the
            Transaction Control Regulations,  31 C.F.R. Part 505,  as amended,
            the  Haitian  Transaction  Regulations,  31  C.F.R. Part  580,  as
            amended, the Foreign  Assets Control  Regulations, 31 C.F.R.  Part
            500, as  amended, or  Executive Orders  12810 and  12831; if  such
            transaction or  violation would  (i) expose  the Mortgagee  to any
            penalty, sanction  or investigation  or (ii)  jeopardize the  lien
            created by this Mortgage or  (iii) have a material adverse  effect
            on the Owner or the operation of the Rig;

       (d)  shall not cause  or permit the  Rig to be  operated in any  manner
            contrary  to law,  shall not  abandon the Rig  in a  foreign port,
            shall not engage in any unlawful trade or violate any law or carry
            any cargo  that shall  expose the  Rig to  penalty, forfeiture  or
            capture,  and  shall not  do,  or  suffer or  permit  to  be done,
            anything which can or may  injuriously affect the registration  or
            enrollment of the Rig under the laws of the United States and will
            at all times keep the Rig duly documented thereunder.

8      PROTECTION OF SECURITY

8.1    The Mortgagee  shall without prejudice to  its other rights  and powers
under the Mortgage  and this Deed and  the other Credit Documents  be entitled
(but not bound) at any time and as often  as may be necessary to take any such
action as it may in its discretion think fit for  the purpose of protecting or
maintaining  the security created  by the  Mortgage and this  Deed (including,
without limitation, such action as is referred  to in Clause 8.2) and each and
every  expense, liability, or loss (including, without limitation, legal fees)
so incurred by  the Mortgagee in or about the protection or maintenance of the
said security together with interest payable thereon under Clause 3.1(c) shall
be repayable to it by the Owner on demand.

8.2    Without prejudice to the generality of Clause 8.1:

       (a)  if the Owner does not comply with  the provisions of Clause 6.1 or
            any  of them  the Mortgagee shall  be entitled (but  not bound) to
            effect  or  to  replace  and  renew  and  thereafter  to  maintain
            Insurances in  such manner as in  its discretion it may  think fit
            and  to require  that all  policies, contracts  and other  records
            relating   to   the   Insurances   (including   details   of   and
            correspondence  concerning   outstanding   claims)  be   forthwith
            delivered  to such brokers  as the  Mortgagee may nominate  and to
            collect, recover,  compromise and  give a  good discharge  for all
            claims then outstanding or thereafter arising under the Insurances
            or any of them and to  take over or institute (if necessary  using
            the  name  of  the  Owner)  all  such  proceedings  in  connection
            therewith as the  Mortgagee in its  absolute discretion may  think
            fit and  to  permit the  brokers through  whom  the collection  or
            recovery is effected to charge the usual brokerage therefor; and

       (b)  if the Owner does not comply with the provisions of  Clause 7.1(c)
            and/or  7.1(e) or any of them the Mortgagee shall be entitled (but
            not  bound) to  arrange for  the carrying  out of such  repairs to
            and/or surveys of the Rig as it deems expedient or necessary; and

       (c)  if the Owner does not comply with the provisions  of Clause 7.1(g)
            or any of  them the Mortgagee shall be entitled (but not bound) to
            pay and  discharge all such debts, damages and liabilities and all
            such tolls,  dues, taxes,  assessments, charges,  fines, penalties
            and other  outgoings as are therein  mentioned and/or to  take any
            such measures as it deems  expedient or necessary for the  purpose
            of securing the release of the Rig.

9      ENFORCEABILITY AND MORTGAGEE'S POWERS

9.1    Upon the  happening of any  of the Events  of Default specified  in the
Credit Agreement but without the necessity for any court  order or declaration
in any jurisdiction to the effect  that an Event of Default has occurred  (and
whether prior to or  after the Mortgagee having  served on the Owner  any such
notice  is  referred  in Section  9  of  the  Credit Agreement)  the  security
constituted by the Mortgage and this Deed shall become immediately enforceable
and the power of sale  and other powers conferred by law shall  be immediately
exercisable and the Mortgagee  shall be entitled, as and when  it may see fit,
to put  into force and to exercise all the powers possessed by it as mortgagee
and chargee of the Rig and in particular:

       (a)  to take possession of  the Rig whether actually  or constructively
            and/or otherwise to  take control of the Rig wherever  the Rig may
            be and cause  the Owner or any  other person in possession  of the
            Rig forthwith upon demand to  surrender the same to the  Mortgagee
            without legal process  and without liability of  the Mortgagee for
            any losses  or  damages incurred  thereby  and without  having  to
            render accounts to the Owner in connection therewith;

       (b)  to require that all policies,  contracts, certificate of entry and
            other records relating to the Insurances (including details of and
            correspondence  concerning   outstanding   claims)  be   forthwith
            delivered to or to the order of the Mortgagee;

       (c)  to collect,  recover, compromise and give a good discharge for any
            and all moneys or claims for moneys then outstanding or thereafter
            arising  under the  Insurances and to  permit any  brokers through
            whom  collection  or  recovery is  effected  to  charge  the usual
            brokerage therefor;

       (d)  to take  over or institute  (if necessary  using the  name of  the
            Owner)  all  such  proceedings in  connection  with  the Mortgaged
            Premises as the  Mortgagee in its  absolute discretion thinks  fit
            and to discharge,  compound, release or compromise  claims against
            the Owner in respect of the Rig which have given or may  give rise
            to any  charge  or  lien  on  the Rig  or  which  are  or  may  be
            enforceable by proceedings against the Rig;

       (e)  to sell the Rig or any share  therein with or without prior notice
            to the Owner, and with or  without the benefit of any charterparty
            or other contract for her employment, by public auction or private
            contract at  such place  and upon  such terms (including,  without
            limitation,  on terms  such that  payment  of some  or all  of the
            purchase price  be  deferred) as  the  Mortgagee in  its  absolute
            discretion  may determine  with power to  postpone any  such sale,
            without being answerable for any  loss occasioned by such sale  or
            resulting from postponement thereof, and/or itself to purchase the
            Rig at any such  public auction and to set off  the purchase price
            against all or any part of the Obligations;

       (f)  to  manage, insure, maintain  and repair  the Rig and  to charter,
            employ, sail or lay up the Rig in such manner, upon such terms and
            for such  period as the Mortgagee in its absolute discretion deems
            expedient and for  the purposes aforesaid  the Mortgagee shall  be
            entitled to do all acts and things incidental or conducive thereto
            and in particular  to enter into such arrangements  respecting the
            Rig,   and   the  insurance,   management,   maintenance,  repair,
            classification,  chartering  and  employment of  the  Rig,  in all
            respects as if the Mortgagee were the owner of the Rig and without
            being responsible for any loss thereby incurred;

       (g)  to recover from the Owner  on demand any expenses, liabilities  or
            losses  as  may  be incurred  by  the  Mortgagee in  or  about the
            exercise of the power vested in the Mortgagee under Clause 9.1(f);

       (h)  generally, to  recover from  the Owner  on demand  each and  every
            expense, liability or loss incurred  by the Mortgagee in or  about
            or  incidental  to the  exercise  by  it  of  any  of  the  powers
            aforesaid.

9.2    The Mortgagee shall not be obliged to make any enquiry as to the nature
or sufficiency of any payment received by  it under the Mortgage and this Deed
(or either of  them) or to make  any claim under this  Deed or to  enforce any
rights and  benefits assigned to the  Mortgagee by this  Deed or to  which the
Mortgagee may at any time be entitled hereunder.

9.3    Neither the  Secured Creditors  nor their  agents, managers,  officers,
employees, delegates  and advisers  shall be  liable for  any expense,  claim,
liability,  loss, cost, damage  or expense  incurred or arising  in connection
with the exercise or purported exercise  of any rights, powers and discretions
under the Mortgage and this Deed  (or either of them) in the absence  of gross
negligence or wilful misconduct.

9.4    The Mortgagee shall not  by reason of the taking possession  of the Rig
be liable  to account as mortgagee-in-possession or for anything except actual
receipts or  be liable  for any loss  upon realisation  or for any  default or
omission for which a mortgagee-in-possession might be liable.

9.5    Upon any sale  of the Rig  or any share  therein by the  Mortgagee, the
purchaser shall not be  bound to see or enquire whether  the Mortgagee's power
of sale has  become exercisable in  the manner provided  in this Deed and  the
sale  shall be deemed to be within the  power of the Mortgagee and the receipt
of  the  Mortgagee for  the  purchase money  shall  effectively discharge  the
purchaser who  shall not be  concerned with the  manner of application  of the
proceeds of sale or be in any way answerable therefor.

10     APPLICATION OF MONEYS

10.1   (a)  All moneys received by the Mortgagee in respect of sale of the Rig
            or any share therein; in respect of recovery under the Insurances;
            or in respect of Requisition Compensation;

            (i)  first, to the payment of  all amounts owing the Mortgagee  of
            the type described in clauses (ii) and (iii) of Recital D;

            (ii) second, to  the extent  moneys remain  after the  application
            pursuant to  the  preceding clause  (i), an  amount  equal to  the
            outstanding Obligations shall be paid  to the Secured Creditors as
            provided in Clause 10.01(c), with  each Secured Creditor receiving
            an amount equal to such Obligations held by it or, if the proceeds
            are insufficient to pay in full all such Obligations, its Pro Rata
            Share  (as   defined  below)  of   the  amount  remaining   to  be
            distributed; and

            (iii)     third, to the extent moneys remain after the application
            pursuant to  the preceding clauses (i) and (ii), and following the
            termination of  Mortgage and  this Deed  of Covenants  pursuant to
            Clause 4.4, any surplus then remaining shall be paid to the Owner,
            subject, however, to the rights of the holder of any then existing
            Lien  of   which  the   Mortgagee  has   actual  notice   (without
            investigation).

       (b)  For purposes  of this  Deed of  Covenants "Pro  Rata Share"  shall
            mean,  when  calculating  a  Secured  Creditor's  portion  of  any
            distribution  or amount in respect  of any Obligations, the amount
            (expressed as a percentage) equal  to a fraction the numerator  of
            which is the  then unpaid amount  of such Obligations owing  to or
            held  by such Secured Creditor and the denominator of which is the
            then outstanding  amount of all such Obligations.  For purposes of
            determining  the  amount  payable to  each  Secured  Creditor, the
            Mortgagee shall be  entitled to request  each Secured Creditor  to
            furnish it with written notice  of the amount of Obligations  then
            owed to it and shall be entitled to reply upon the  amounts stated
            therein in making such distribution.

       (c)  All  payments required to  be made to  Secured Creditors hereunder
            shall  be made to  the Agent  under the  Credit Agreement  for the
            account of the Secured Creditors.

       (d)  For purposes of applying payments received in accordance with this
            Clause 10.01,  the Mortgagee shall be  entitled to reply  upon (i)
            the  Agent  under  the  Credit  Agreement  and  (ii)  the  Secured
            Creditors for a  determination (which the  Agent and each  Secured
            Creditor, by their acceptance of  the benefits of this Deed  shall
            be obligated  to provide  upon request  of the  Mortgagee) of  the
            outstanding Obligations owed to the Secured Creditors.  Unless  it
            has actual  knowledge (including by way  of written notice  from a
            Secured  Creditor) to  the contrary,  the Agent  under the  Credit
            Agreement, in  furnishing information  pursuant  to the  preceding
            sentence,  and  the  Mortgagee,  in  acting  hereunder,  shall  be
            entitled to assume  that (x) no obligations other  than principal,
            interest  and regularly  accruing fees  are owing  to  any Secured
            Creditor.

11     FURTHER ASSURANCES

11.1   The Owner shall execute and do all such assurances, acts and  things as
the Mortgagee in its absolute discretion may require for:

       (a)  perfecting or protecting the security  created (or intended to  be
            created) by the Mortgage and this Deed; or

       (b)  preserving or  protecting any of the rights of the Mortgagee under
            the Mortgage and this Deed (or either of them); or

       (c)  ensuring  that the security  constituted by the  Mortgage and this
            Deed  and the covenants  and obligations  of the Owner  under this
            Deed  shall enure  to  the benefit  of  any such  assignee  of the
            Mortgagee as is referred to in Clause 16.3; or

       (d)  enforcing the security constituted  by the Mortgage and this  Deed
            on or at any time after the same shall have become enforceable; or

       (e)  the exercise of any power,  authority or discretion vested in  the
            Mortgagee under the Mortgage and this Deed (or either of them),

in any such case, forthwith upon demand by the Mortgagee and at the expense of
the Owner.

12     POWER OF ATTORNEY

12.1   The Owner, by way  of security and  in order more  fully to secure  the
performance of the Obligations, hereby  irrevocably appoints the Mortgagee  as
its attorney for the  duration of the Credit Facility Period  for the purposes
of:

       (a)  doing  in  its name  all  acts  and  executing,  signing  and  (if
            required) registering  in its name  all documents which  the Owner
            itself could  do, execute,  sign or  register in  relation to  the
            (including without  limitation, transferring  title to  the  to  a
            third  party)   Provided  however  that such  power  shall not  be
            exercisable by  or on behalf of  the Mortgagee until  the Mortgage
            and this Deed  shall have become immediately  enforceable pursuant
            to Clause 9.1; and

       (b)  executing,   signing,   perfecting,   doing   and  (if   required)
            registering every such further assurance document, act or thing as
            is referred to in Clause 11.

12.2   The exercise of such power as is referred to in Clause 12.1(a) by or on
behalf of the  Mortgagee shall not put  any person dealing with  the Mortgagee
upon  any  enquiry  as to  whether  the  Mortgage and  this  Deed  have become
enforceable nor shall  such person be in  any way affected by notice  that the
Mortgage and this  Deed have not become  enforceable and, in relation  to both
Clauses 12.1(a) and 12.1(b), the exercise by the Mortgagee of such power shall
be conclusive evidence of its right to exercise the same.

13     INDEMNITIES

13.1   The Owner  will indemnify and save  harmless the Secured  Creditors and
each agent or  attorney appointed  under or  pursuant to this  Deed (each,  an
"Indemnitee") from  and against  any and  all  expenses, claims,  liabilities,
losses, taxes, costs, duties,  fees and charges suffered, incurred  or made by
such Secured Creditor or such agent or attorney:

       (a)  in  the exercise or  purported exercise  of any rights,  powers or
            discretions vested  in them pursuant to the Mortgage and this Deed
            (or either of them); or

       (b)  in the preservation or enforcement of the Mortgagee's rights under
            the Mortgage and this Deed (or either of them); or

       (c)  on the release of  the Rig or any share therein  from the security
            created by the Mortgage and this Deed (or either of them),

and the Secured Creditors  and each such agent or attorney may  retain and pay
all  sums in  respect of  the  same out  of  money received  under the  powers
conferred by the Mortgage and this Deed (or either of them).  All such amounts
recoverable by  such  Secured Creditor  or  such agent  or  attorney shall  be
recoverable on a full indemnity basis.

13.2   Without limiting the  foregoing Clause 13.01, the Owner  hereby further
indemnifies  and  holds  harmless  each of  the  Secured  Creditors  and their
respective  officers,  directors,  employees, attorneys  and  agents  from and
against  any  and  all  liabilities,  losses,  obligations,  claims,  damages,
penalties,  causes  of   action,  costs   and  expenses  (including,   without
limitation,  reasonable   attorneys'  fees  and  expenses,   consultant  fees,
investigation  and laboratory fees)  imposed upon  or incurred by  or asserted
against them,  or  any  of them,  by  reason  of  (a) an  actual,  alleged  or
threatened Environmental Incident; (b) any personal injury (including wrongful
death) or property damage (real or personal) or economic damage arising out of
or related to such Environmental Incident; (c) any Environmental Claim brought
or  threatened, or settlement reached;  or (d) any  violation of laws, orders,
regulations, requirements  or demands  of government  authorities relating  to
Hazardous Materials at, or discharged from the Rig.

13.3   If,  under any applicable law or  regulation, and whether pursuant to a
judgment being made or registered against the  Owner or the liquidation of the
Owner  or for any  other reason, any  payment under or  in connection with the
Mortgage and this Deed (or either of them) is made or falls to be satisfied in
a currency  (the "payment  currency") other  than the  currency in  which such
payment is due  under or in  connection with the  Mortgage and this  Deed (the
"contractual currency"), then  to the extent  that the amount of  such payment
actually  received by  the  Mortgagee,  when  converted into  the  contractual
currency at the rate  of exchange, falls short  of the amount due under  or in
connection with  the Mortgage  and this  Deed, the  Owner, as  a separate  and
independent  obligation,  shall  indemnify  and  hold harmless  the  Mortgagee
against the  amount of such shortfall.  For  the purposes of this Clause 13.3,
"rate of exchange" means the rate at  which the Mortgagee is able on the  date
of such  payment (or, if it  is not practicable for the  Mortgagee to purchase
the  contractual  currency  with the  payment  currency  on the  date  of such
payment, at the rate of exchange as soon afterwards as it practicable  for the
Mortgagee  to do so)  to purchase  the contractual  currency with  the payment
currency and shall take into account  any premium and other costs of  exchange
with respect thereto.

14     EXPENSES

14.1   The Owner shall  pay to  the Mortgagee  on demand all  costs, fees  and
expenses (including,  but not limited  to, legal, surveyor's  and shipbroker's
fees and  expenses) and Taxes thereon incurred by  any Secured Creditor or for
which any Secured Creditor may become liable in connection with:

       (a)  the negotiation, preparation and execution of the Credit Agreement
            and the Credit Documents; and/or

       (b)  the preserving  or  enforcing of,  or  attempting to  preserve  or
            enforce, any  of its  rights under  the Credit  Agreement and  the
            Credit Documents (or any of them).

14.2   The Owner  shall pay  to the Mortgagee  on demand  all costs,  fees and
expenses (including, but  not limited to, legal  fees and expenses)  and Taxes
thereon incurred by any Secured Creditor in connection with:

       (a)  any variation of, or amendment or supplement to, any  of the terms
            of the Credit Agreement and the Credit Documents (or any of them);
            and/or

       (b)  any consent or waiver required  from the Mortgagee in relation  to
            the Credit Agreement and the Credit Documents (or any of them),

and  in each  case, regardless  of whether the  same is  actually implemented,
completed or granted, as the case may be.

14.3   The Owner  shall pay  promptly all  stamp, documentary  and other  like
duties and Taxes  to which the Credit  Agreement and the Credit  Documents (or
any of them) may be subject or give  rise and shall indemnify the Mortgagee on
demand against any and all liabilities  with respect to or resulting from  any
delay or omission on the part of the Owner to pay any such duties or Taxes.

15     COMMUNICATIONS

15.1   The provisions of Clause  12.03 of the Credit Agreement  shall apply in
relation to any notice, demand or other communication under this Deed.

16     ASSIGNMENTS

16.1   The Mortgage and this Deed shall be binding upon and shall enure to the
benefit of the Owner and the Secured Creditors and their respective successors
and permitted assigns and references in  the Mortgage and this Deed to  either
of them shall be construed accordingly.

16.2   The  Owner may not  assign or  transfer all or  any part of  its rights
and/or obligations under the Mortgage and this Deed (or either of them).

16.3   The  Mortgagee may assign or transfer all or  any part of its rights or
obligations under the  Mortgage and  this Deed  to any  permitted assignee  or
transferee of all or any such part of  its rights and/or obligations under the
Credit Agreement on the  terms therein provided.   The Mortgagee shall  notify
the Owner promptly following any such assignment, transfer or change.

17     MISCELLANEOUS

17.1   If at  any time any one  or more of  the provisions in this  Deed is or
becomes  invalid, illegal  or unenforceable  in any respect  under any  law or
regulation,  the  validity,  legality  and  enforceability  of  the  remaining
provisions of this Deed shall not be in any way affected or impaired thereby.

17.2   The Mortgagee, at any time and from time to time, may delegate by power
of attorney or in any other manner to any  person or persons all or any of the
powers, authorities and discretions which  are for the time being  exercisable
by the  Mortgagee under  the Mortgage  and this  Deed (or  either of them)  in
relation to the Mortgaged  Premises or any part thereof.   Any such delegation
may be made upon such  terms and subject to such regulations as  the Mortgagee
may think fit.  The Mortgagee shall not be in any way liable or responsible to
the Owner for  any loss or damage arising  from any act, default,  omission or
misconduct on the part of any such delegate.

17.3   This Deed may be  executed in several counterparts, each of which shall
be an  original, but  which together  shall constitute  but one  and the  same
document.

18     LAW AND JURISDICTION

18.1   This  Deed  shall be  governed  by, and  construed  in accordance  with
Bahamian Law.

18.2   The Owner agrees  that the Mortgagee shall have  the liberty, but shall
not be obligated, to take any proceedings in the courts of any jurisdiction to
protect  and  enforce the  security  hereby  constituted  or  to  enforce  any
provision of the Security Documents or  to enforce the Obligations.    For the
purpose  of any  proceedings for the  enforcement of  this Deed and  the other
Security Documents, the Owner hereby submits to the jurisdiction of the courts
of the Bahamas, the state and federal courts located in New York, New York and
the courts  of any  jurisdiction where  the Rig  may be found,  and the  Owner
agrees to accept  service in respect of  any such proceeding by  registered or
certified mail addressed in accordance with the Credit Agreement.
 
18.3   Without prejudice  to the generality of Clause 18.2 the Mortgagee shall
have the right to arrest and take action against the Rig at whatever place the
Rig shall be found lying and for the purpose of any action which the Mortgagee
may bring before  the Courts of such jurisdiction or  other judicial authority
and for the purpose  of any action which  the Mortgagee may bring against  the
Rig,  any  writ, notice,  judgment  or other  legal  process or  documents may
(without prejudice  to any other  method of service  under applicable law)  be
served  upon the Master of the  Rig (or upon anyone  acting as the Master) and
such service shall be deemed good service on the Owner for all purposes.

IN  WITNESS   whereof the  parties hereto  have caused  this Deed  to  be duly
executed the day and year first before written.


OWNER

SIGNED SEALED and DELIVERED           )
on behalf of READING & BATES          )
DRILLING CO.                          )
by                                    )                                
its duly authorised attorney-in-fact  )
in the presence of:                   )

           Witness:



MORTGAGEE


SIGNED SEALED and DELIVERED           )
on behalf of CHRISTIANIA BANK OG      )
KREDITKASSE, NEW YORK BRANCH          )
by                                    )                                
its duly authorised attorney-in-fact  )
in the presence of:                   )

           Witness:



                                                      Exhibit 10.94  
                                                                              

                              INDENTURE OF TRUST

                          Dated as of April 30, 1996

                   READING & BATES DRILLING CO., as Borrower

                                    - and -

           READING & BATES EXPLORATION CO., as Subsidiary Guarantor

                                    - and -

                           WILMINGTON TRUST COMPANY,
                                  as Trustee

==============================================================================

                               TABLE OF CONTENTS
                                                                          Page

INDENTURE OF TRUST  . . . . . . . . . . . . . . . . . . . . . . . . . .  - 1 -
RECITALS OF THE BORROWER AND THE SUBSIDIARY GUARANTOR . . . . . . . . .  - 1 -
GRANTING CLAUSE . . . . . . . . . . . . . . . . . . . . . . . . . . . .  - 2 -

ARTICLE 1
DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION . . . . . . . .  - 2 -

Section 1.01.     Definitions . . . . . . . . . . . . . . . . . . . . .  - 2 -
Section 1.02.     Notices . . . . . . . . . . . . . . . . . . . . . . .  - 4 -
Section 1.03.     Waiver of Notice  . . . . . . . . . . . . . . . . . .  - 5 -
Section 1.04.     Effect of Headings; Table of Contents . . . . . . . .  - 5 -
Section 1.05.     Severability Clause; Further Assurances . . . . . . .  - 5 -
Section 1.06.     Governing Law; Jurisdiction . . . . . . . . . . . . .  - 6 -
Section 1.07.     Appointment of Process Agent  . . . . . . . . . . . .  - 6 -
Section 1.08.     Counterparts  . . . . . . . . . . . . . . . . . . . .  - 6 -
Section 1.09.     Survival  . . . . . . . . . . . . . . . . . . . . . .  - 6 -
Section 1.10.     No Transfer in Violation of Shipping Act  . . . . . .  - 7 -
Section 1.11.     Monies of Trustee Received by the Borrower  . . . . .  - 7 -
Section 1.12.     Binding Effect  . . . . . . . . . . . . . . . . . . .  - 7 -

ARTICLE 2
REPRESENTATIONS, WARRANTIES AND COVENANTS . . . . . . . . . . . . . . .  - 7 -

Section 2.01  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  - 7 -
(a)   Organization and Existence  . . . . . . . . . . . . . . . . . . .  - 7 -
(b)   Power and Authority . . . . . . . . . . . . . . . . . . . . . . .  - 7 -
(c)   Due Authorization, Execution and Enforceability . . . . . . . . .  - 7 -
(d)   No Violations . . . . . . . . . . . . . . . . . . . . . . . . . .  - 8 -
(e)   Liens and Security Interests  . . . . . . . . . . . . . . . . . .  - 8 -
(f)   Notices of Defaults . . . . . . . . . . . . . . . . . . . . . . .  - 8 -

Section 2.02  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  - 8 -
(a)   Organization Existence  . . . . . . . . . . . . . . . . . . . . .  - 8 -
(b)   Power and Authority . . . . . . . . . . . . . . . . . . . . . . .  - 8 -
(c)   Due Authorization, Execution and Enforceability . . . . . . . . .  - 8 -
(d)   No Violations . . . . . . . . . . . . . . . . . . . . . . . . . .  - 8 -

ARTICLE 3
REMEDIES UPON AN EVENT OF DEFAULT . . . . . . . . . . . . . . . . . . .  - 9 -

Section 3.01.     Remedies  . . . . . . . . . . . . . . . . . . . . . .  - 9 -
Section 3.02.     Suits for Enforcement by Trustee  . . . . . . . . . .  - 9 -
Section 3.03.     Enforcement of Claims . . . . . . . . . . . . . . . .  - 9 -
Section 3.04.     Application of Monies Collected After Default . . . .  - 9 -
Section 3.05.     Rights and Remedies Cumulative  . . . . . . . . . . . - 10 -
Section 3.06.     Delay or Omission Not Waiver  . . . . . . . . . . . . - 10 -
Section 3.07.     Discontinuance of Enforcement Proceedings . . . . . . - 10 -
Section 3.08.     Control by the Required Banks . . . . . . . . . . . . - 11 -
Section 3.09.     Undertaking for Costs . . . . . . . . . . . . . . . . - 11 -
Section 3.10.     Waiver of Demand, etc . . . . . . . . . . . . . . . . - 11 -

ARTICLE 4
THE TRUSTEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 11 -

Section 4.01.     Certain Duties and Liabilities  . . . . . . . . . . . - 11 -
Section 4.02.     Certain Rights of Trustee . . . . . . . . . . . . . . - 12 -
Section 4.03.     Not Responsible for Recitals  . . . . . . . . . . . . - 13 -
Section 4.04.     Money Held in Trust . . . . . . . . . . . . . . . . . - 13 -
Section 4.05.     Compensation, Reimbursement and Indemnification . . . - 13 -
Section 4.06.     Corporate Trustee Required; Eligibility . . . . . . . - 14 -
Section 4.07.     Disqualification, Removal or Resignation of the Trustee;
                     Successor Trustees   . . . . . . . . . . . . . . . - 14 -
Section 4.08.     Co-trustees and Separate Trustees . . . . . . . . . . - 16 -

ARTICLE 5
SATISFACTION AND DISCHARGE  . . . . . . . . . . . . . . . . . . . . . . - 17 -

Section 5.01.     General . . . . . . . . . . . . . . . . . . . . . . . - 17 -
Section 5.02.     Survival of Certain Obligations . . . . . . . . . . . - 18 -

ARTICLE 6
SUPPLEMENTAL INDENTURES . . . . . . . . . . . . . . . . . . . . . . . . - 18 -

Section 6.01.     Waivers and Supplemental Indentures
                      With Consent of Banks . . . . . . . . . . . . . . - 18 -
Section 6.02.     Execution of Supplemental Indentures  . . . . . . . . - 18 -
Section 6.03.     Effect of Supplemental Indentures . . . . . . . . . . - 18 -

ARTICLE 7
INSTRUCTIONS OF THE AGENT OR REQUIRED BANKS . . . . . . . . . . . . . . - 18 -

Section 7.01.     Instructions of the Agent or Required Banks.  . . . . - 18 -

ARTICLE 8
LIMITATION OF LIABILITY . . . . . . . . . . . . . . . . . . . . . . . . - 19 -

Section 8.01.     Limitation of Liability of Wilmington Trust Company.  - 19 -


==============================================================================

                              INDENTURE OF TRUST


      THIS INDENTURE OF  TRUST (this "Indenture") dated as of  April 30, 1996,
among (i) READING  & BATES DRILLING  CO., as  borrower (the "Borrower");  (ii)
READING  & BATES  EXPLORATION CO.,  as  subsidiary guarantor  (the "Subsidiary
Guarantor"), each an  Oklahoma corporation and (iii) WILMINGTON TRUST COMPANY,
a Delaware banking corporation, not  in its individual capacity but  solely as
indenture trustee (the "Trustee").

             RECITALS OF THE BORROWER AND THE SUBSIDIARY GUARANTOR

      A.    By a Credit  Agreement dated as of April  30, 1996 ( as  in effect
from time to  time, the "Credit Agreement") among Reading & Bates Corporation,
a Delaware  corporation ("Holdings"),  the Borrower, the  banks party  thereto
(the "Banks"), Credit  Lyonnais New York Branch, as  co-agent, and Christiania
Bank og  Kreditkasse, New York  branch, as agent  (the "Agent") it  was agreed
among other  things that the Banks  would make available to  the Borrower upon
the  terms  and  conditions  therein  described  a  reducing  revolving credit
facility (the "Facility") in  an aggregate amount at  any time outstanding  of
One Hundred Million  United States Dollars (US$100,000,000)  providing for the
making  of Loans and the issuance of,  and participation in, Letters of Credit
as contemplated therein.

      B.    The Subsidiary  Guarantor for good and  valuable consideration has
authorized,  executed and  delivered  a Subsidiary  Guaranty (the  "Subsidiary
Guaranty") in favor of the Agent guaranteeing  the performance by the Borrower
of  its obligations under the Credit  Agreement and the other Credit Documents
as defined in the Credit Agreement.

      C.    Pursuant to the Credit Agreement  and to secure the obligations of
the Borrower thereunder, (i) the Borrower is required to execute and deliver a
first preferred mortgage on the U.S. documented semi-submersible drilling unit
JACK BATES;  and (ii)  the  Subsidiary Guarantor  is required  to execute  and
deliver first preferred mortgages (together  with the first preferred mortgage
on the JACK BATES the "Mortgages") on each of (1)  the U.S. documented jack-up
drilling unit, D.R. STEWART and (2) the U.S. documented offshore drilling unit
W.D. KENT (together  with the JACK BATES,  the "Vessels").  As  certain of the
Banks are  not citizens of the United States of  America within the meaning of
Section 2 of the Shipping Act, 1916, as amended, and  are therefore ineligible
to be  mortgagees of  the  Vessels, the  Banks  have requested  the  Indenture
Trustee to hold, pursuant to the terms of this Indenture, the Mortgages.

      D.    To  secure  their  respective  obligations under  (i)  the  Credit
Agreement and  the Note and (ii) the Subsidiary Guaranty, the Borrower and the
Subsidiary Guarantor have  duly authorized the execution and  delivery of this
Indenture.

      E.    All things have  been done which are necessary  to constitute this
Indenture a  valid security agreement  and contract  for the  security of  the
respective obligations of the Borrower  and the Subsidiary Guarantor under (i)
the  Credit  Agreement  and  the   Note  and  (ii)  the  Subsidiary  Guaranty,
respectively, in accordance with  the terms of the Credit Agreement, the Note,
the Subsidiary Guaranty and this Indenture.


                                GRANTING CLAUSE
               NOW, THEREFORE, THIS INDENTURE WITNESSETH, that,

      To secure the payment of the Loans (as defined in the Credit Agreement),
the Unpaid Drawings (as defined in the Credit Agreement), and interest thereon
and  all other  Obligations  (as defined  below)  and the  performance of  the
covenants therein and  herein contained, and in consideration  of the premises
and of  the Banks' making  the Facility available  to the Borrower,  and other
good and valuable consideration, the  Borrower and the Subsidiary Guarantor by
these presents do grant, sell, convey,  assign, transfer, pledge, set over and
confirm  unto the Trustee  for the benefit  of the  Banks, continuing security
interests in all  of their right, title  and interest in and  all benefits in,
under and to all of the following, but as security only for the payment of the
Obligations:

      1.    The  U.S. documented  vessel JACK  BATES,  as granted  by a  first
            preferred mortgage on the JACK BATES by the Borrower;

      2.    The U.S.  documented vessel  D.R. STEWART, as  granted by  a first
            preferred  mortgage   on  the  D.R.  STEWART   by  the  Subsidiary
            Guarantor;
      3.    The  U.S. documented  vessel  W.D.  KENT, as  granted  by a  first
            preferred  mortgage on the W.D. KENT  by the Subsidiary Guarantor;
            and

      4.    Proceeds of the foregoing.

      The  Trustee shall  hold the  Mortgages as  collateral security  for the
Obligations, subject to the terms of this Indenture.

      AND IT  IS HEREBY  COVENANTED AND DECLARED  that the  security interests
granted  above are  to be  held and  applied by  the  Trustee, subject  to the
further covenants,  conditions and trusts  herein set forth, and  the Borrower
and  the Subsidiary  Guarantor do hereby  covenant and  agree to  and with the
Trustee, for the benefit of the Banks as follows:


                                   ARTICLE 1
            DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

Section 1.01.     Definitions.

      (a)   For all purposes  of this Indenture, except as otherwise expressly
provided herein or unless the  context otherwise requires, in addition to  the
words  and expressions  defined in  the recitals  hereto, the  following terms
shall have the following meanings:

      "Actual Knowledge" has the meaning specified in Section 4.01(h).

      "Business Day"  shall have  the meaning ascribed  thereto in  the Credit
      Agreement.

      "Collateral" means the  mortgages listed in the granting  clause of this
      Indenture and proceeds thereof.

      "Dollars",  "dollars"  or  "$"  means  lawful  and  freely  transferable
      currency of the United States.

      "Default Rate" shall have the  rate of interest calculated in accordance
      with Section 1.07(b) of the Credit Agreement.

      "Event  of Default"  has  the  meaning ascribed  thereto  in the  Credit
      Agreement.

      "Instructions" has the meaning set forth in Section 7.01.

      "Letters  of Credit"  has the  meaning  ascribed thereto  in the  Credit
      Agreement.

      "MARAD" means  the United States Department  of Transportation, Maritime
      Administration.

      "Obligations"  shall  means the  obligations  of  the Borrower  and  the
      Subsidiary Guarantor  with respect  to (i) the  full and  prompt payment
      when due of (x)  the principal of interest  on the Loans made under  the
      Credit Agreement, and all  reimbursement obligations and Unpaid Drawings
      with respect to the Letters of Credit  issued under the Credit Agreement
      and  (y)  all other  obligations  and  indebtedness (including,  without
      limitation, indemnities, Fees and interest  thereon) of the Borrower  to
      the Secured Creditors, whether now existing or hereafter incurred under,
      arising out of or in connection  with the Credit Agreement and the other
      Credit Documents and the due  performance and compliance by the Borrower
      with all of the terms, conditions and agreements contained in the Credit
      Agreement and the other Credit Documents; (ii) any and all sums advanced
      by  the Trustee  in order  to  preserve the  Collateral (as  hereinafter
      defined) or preserve  its security interest in the  Collateral; (iii) in
      the event  of any proceeding  for the  collection or enforcement  of any
      indebtedness,  obligations,  or  liabilities  of  the  Borrower  or  the
      Subsidiary Guarantor referred to in clause (i) above, after  an Event of
      Default shall have occurred  and be continuing, the reasonable  expenses
      of  the Trustee  of re-taking,  holding,  preparing for  sale or  lease,
      selling or otherwise disposing  of or realizing on the Collateral, or of
      any  exercise by  the Trustee  of  its rights  hereunder, together  with
      reasonable attorneys'  fees of counsel  to the Trustee and  court costs;
      and (iv) all amounts paid by any Indemnitee as to  which such Indemnitee
      has the right to reimbursement  (all such obligations, liabilities, sums
      and  expenses  referred to  in  clauses  (i)  through (iv)  above  being
      collectively referred to as the  "Obligations").  It is acknowledged and
      agreed that the "Obligations" shall  include extensions of credit of the
      types described above, whether outstanding on the date of this Indenture
      or extended from time to time after the date of this Indenture.

      "Officer's Certificate" means (i) when used with respect to the Borrower
      or the Subsidiary Guarantor, a  certificate signed by the president, the
      chief  executive  officer,  any   vice  president,  the  secretary,  any
      assistant  secretary, the treasurer  or any  assistant treasurer  of the
      Borrower  or the Subsidiary Guarantor and (ii) when used with respect to
      the  Trustee, a  certificate  signed  by a  Responsible  Officer of  the
      Trustee.

      "Person" means any individual, corporation,  partnership, joint venture,
      joint-stock company, trust, unincorporated organization or government or
      any agency or political subdivision thereof.

      "Required  Banks"  has  the  meaning  ascribed  thereto  in  the  Credit
      Agreement.

      "Responsible Officer", when used with  respect to the Trustee, means any
      officer  with  direct  responsibility  for the  administration  of  this
      Indenture and also  means, with respect to a  particular corporate trust
      matter, any other officer to whom such matter is referred because of his
      knowledge of  and familiarity with the  particular subject. "Responsible
      Officer",  when used  with respect  to  the Borrower  or the  Subsidiary
      Guarantor, means the president,  any vice president, the secretary,  any
      assistant secretary,  the treasurer  or any  assistant treasurer  of the
      Borrower or the  Subsidiary Guarantor or any other  officer or assistant
      officer  of  the  Borrower   or  the  Subsidiary  Guarantor  customarily
      performing  functions  similar   to  those  performed  by  any   of  the
      above-designated officers.

      "Secured Creditors"  shall mean  the Trustee, the  Banks, the  Letter of
      Credit  Issuer  and  the  Agent  under and  as  defined  in  the  Credit
      Agreement.

      "Security  Documents"  shall have  the meaning  ascribed thereto  in the
      Credit Agreement.

      "Supplemental  Indenture"  means  any  indenture  supplemental  to  this
      Indenture entered into pursuant to Article 6.

      "United States" means the United States of America.

      "Unpaid  Drawings"  has  the  meaning ascribed  thereto  in  the  Credit
      Agreement.

            (b)   For  purposes of this  Indenture, unless otherwise expressly
      provided  or  unless the  context  otherwise,  requires, all  references
      herein  to Articles,  Sections or  other subdivisions,  unless otherwise
      specified,  refer  to the  corresponding  Articles,  Sections and  other
      subdivisions of this Indenture, and the terms "hereof, "herein", hereby"
      hereafter" and "herewith" refer to this Indenture.

            (c)   The terms defined in this Article include the plural as well
      as the singular.

            (d)   All other  terms used in  this Indenture and not  defined in
      this  Indenture which  are defined  by  reference herein  to the  Credit
      Agreement or  other instruments, have  the meanings assigned to  them in
      the Credit Agreement or such other instruments.

            (e)   All  agreements referred  to in  this Article  I and  in the
      Recitals of this Indenture  mean such agreements as  originally executed
      or, if duly amended or supplemented, as so amended or supplemented.

Section 1.02.     Notices.

      (a)   All  notices or other  communications required or  permitted to be
made hereunder  to the Borrowers,  the Subsidiary Guarantor, the  Trustee, the
Agent  or the  Banks shall  be sufficiently given  if in  writing and  made or
delivered by  hand or  by certified  or registered  mail, postage  prepaid, by
telex or telecopy, addressed  to the particular parties as provided  below, or
to such  other addresses as  such parties may  hereafter specify by  a written
notice to  such other parties (and with respect to any notice or communication
to the Trustee, with a copy to the Agent):

Borrower/Subsidiary     READING & BATES CORPORATION
Guarantor:              901 Threadneedle, Suite 200
                        Houston, TX  77079
                        Telefax: (713) 496-0285
                        Attention: Chief Financial Officer


Indenture Trustee:      WILMINGTON TRUST COMPANY
                        Rodney Square North
                        1100 North Market Street
                        Wilmington, DE 19890-0001
                        Telefax: (302) 651-8882
                        Attention:  Corporate Trust Division

                        With a copy to:

                        Jennifer L. Janss, Esq.
                        Richards, Layton & Finger
                        P.O. Box 551
                        Wilmington, DE 19899


Notices to the Agent shall be addressed to:

                        CHRISTIANIA BANK OG KREDITKASSE, 
                        New York Branch
                        11 West 42nd Street, 7th Floor
                        New York, NY 10036
                        Telefax: (212) 827-4888
                        Attention: Loan Administration

Notices to the Banks shall be addressed as provided  in Annex II to the Credit
Agreement.


Section 1.03.     Waiver of Notice.

      Where this Indenture provides for notice in any manner, such  notice may
be waived  in writing by  the person entitled  to receive such  notice, either
before or  after the event,  and such waiver  shall be the equivalent  of such
notice.

Section 1.04.     Effect of Headings; Table of Contents.                

      The table  of contents, the titles  of the Articles and  the headings of
the  Sections and paragraphs are not a part of this Indenture and shall not be
deemed to affect the meaning or construction of any of its provisions.

Section 1.05.     Severability Clause; Further Assurances.

      In case any  provision of this Indenture or any  other Security Document
shall  be  invalid,  illegal  or  unenforceable, the  validity,  legality  and
enforceability  of the  remaining provisions  of this  Indenture or  any other
Security  Document shall not  in any way  be affected or  impaired thereby. In
case this Indenture or any other Security Document, or any provision hereof or
thereof, shall be  deemed invalid,  illegal or unenforceable,  in whole or  in
part,  by reason  of any present  or future law  or any decision  of any court
having jurisdiction, or if the documents at any time held by the Trustee shall
be  deemed by  the Trustee  in the  reasonable exercise  of its  duties to  be
insufficient for  any reason to implement the rights and powers granted to the
Trustee  herein or  any other Security  Document, then,  from time  to time on
demand of  the Trustee,  the Borrower  and the  Subsidiary Guarantor  will do,
execute, acknowledge and deliver, or  cause to be done, executed, acknowledged
and  delivered, such  other  and further  assurances and  documents as  in the
opinion of the  Trustee may reasonably  be required to  create or confirm  the
security interests purported to be created by the Granting Clause hereof or to
perfect the security  interest of the Trustee therein, or  otherwise to obtain
or maintain the full benefits of this Indenture and the Mortgages.

Section 1.06.     Governing Law; Jurisdiction.

      This  Indenture shall  be  deemed  to  be  a  contract  made  under  the
substantive  laws of  the State  of New  York and  for all  purposes  shall be
construed  in  accordance  with  the  internal laws  of  said  State,  without
reference to principles  of conflicts of law.  This  Indenture may be enforced
in the federal or  state courts in  the State of New  York or any other  court
having jurisdiction. Each of the  Borrower and the Subsidiary Guarantor hereby
irrevocably  submits itself  to  the nonexclusive  jurisdiction of  the United
States District Court for the Southern District of New  York and the courts of
the State of  New York located  in the City  and County of  New York for  such
purpose.  In  addition  thereto,  each  of the  Borrower  and  the  Subsidiary
Guarantor  irrevocably waives,  to the  fullest extent  permitted by  law, any
objection which it may now or hereafter have to the laying of the venue of any
such  proceeding  brought  in any  such  court  or  any  claim that  any  such
proceeding  brought in  any such  court has  been brought  in an  inconvenient
forum.

Section 1.07.     Appointment of Process Agent.

      Each  of  the Borrower  and  the  Subsidiary Guarantor  hereby  appoints
Prentice Hall Corporation, 500 Central  Avenue, Albany, New York 12206-2290 as
its agent to accept service of process in any proceeding on  its behalf in the
State  of New York and  acknowledges that the purpose of  this provision is to
provide that service upon  such firm at its offices in  Albany, New York shall
have  the same effect as if each of  the Borrower and the Subsidiary Guarantor
had been personally served in the State of New York.

Section 1.08.     Counterparts.

      This Indenture may  be executed in any  number of counterparts,  each of
which shall  be an original;  but such counterparts shall  together constitute
but one and the same instrument.

Section 1.09.     Survival.

      All   representations,  warranties,  covenants   and  agreements  herein
contained or made  in writing in connection with any  Security Documents shall
survive the execution  of this Indenture and shall continue  in full force and
effect until  the Indebtedness secured hereby or  thereby shall have been paid
in full, and the  same shall bind and inure  to the benefit of  the respective
successors  and assigns  of the  Borrower,  the Subsidiary  Guarantor and  the
Trustee.

Section 1.10.     No Transfer in Violation of Shipping Act.

      Notwithstanding any  other provision herein  to the contrary,  except to
the extent permitted by law, no sale,  transfer or other disposition of any of
the Vessels, or  any interest therein, may be made to any person not a citizen
of the United  States within the  meaning of  Section 2 of  the Shipping  Act,
1916, as amended,  without the approval of the  Secretary of Transportation of
the United States or pursuant to an exemption therefrom.

Section 1.11.     Monies  of   Trustee  Received  by  the   Borrower  and  the
Subsidiary Guarantor.

      Any monies which  may from time to time  be received by the  Borrower or
the Subsidiary Guarantor  which should have been paid to the Trustee hereunder
shall be so received in  trust for the Trustee,  shall not be commingled  with
other funds of the  Borrower or the Subsidiary Guarantor, as the  case may be,
and shall promptly be remitted to the Trustee.

Section 1.12.     Binding Effect.

      All the covenants, promises, stipulations  and agreements of each of the
Borrower and the Subsidiary Guarantor in this Indenture shall bind each of the
Borrower  and the  Subsidiary  Guarantor and  their respective  successors and
assigns, and  shall inure to the benefit of the Trustee and its successors and
assigns, whether so expressed or not.   This Indenture is for the sole benefit
of the Borrower, the Subsidiary Guarantor, the Trustee and the Banks and their
respective successors and  assigns, and no  other party  shall have any  right
hereunder.


                                   ARTICLE 2
                   REPRESENTATIONS, WARRANTIES AND COVENANTS

Section 2.01.   Each of the  Borrower and the Subsidiary  Guarantor represents
and warrants  to the  Trustee as  of the  date hereof  and covenants with  the
Trustee that:

      (a)   Organization  and   Existence.  Each  of  the   Borrower  and  the
Subsidiary  Guarantor was  duly  organized and  is now  validly existing  as a
corporation  under the laws of the State  of Oklahoma with power and authority
to conduct its business as the same is presently  being conducted. Each of the
Borrower and the Subsidiary Guarantor shall maintain such existence so long as
this Indenture remains in effect.

      (b)   Power and  Authority.  Each of  the  Borrower and  the  Subsidiary
Guarantor had and has  legal power and authority  to enter into and  carry out
the terms of this Indenture. 

      (c)   Due  Authorization, Execution  and Enforceability.  This Indenture
has been duly authorized by all necessary corporate action on the part of each
of  the Borrower  and the  Subsidiary  Guarantor, has  been duly  executed and
delivered  by  each   of  the  Borrower  and  the   Subsidiary  Guarantor  and
constitutes,  in accordance  with  its  terms, the  legal,  valid and  binding
agreements  enforceable  against  each  of  the  Borrower and  the  Subsidiary
Guarantor,   except  to   the   extent  limited   by  applicable   bankruptcy,
reorganization, insolvency,  moratorium or  other laws of  general application
relating to  or affecting the enforcement of creditors' rights as from time to
time in effect and general equitable principles.

      (d)   No Violations.  The consummation of the  transactions contemplated
by,  and compliance by each of the  Borrower and the Subsidiary Guarantor with
all the terms and  provisions of, this Indenture  do not and will not  violate
any provisions of the Certificate of  Incorporation or Bylaws of either of the
Borrower or the Subsidiary  Guarantor, and will not result in a  breach of the
terms  and provisions  of, or  constitute a  default under,  any agreement  or
undertaking by either of the Borrower or the Subsidiary Guarantor, or by which
either of them or any of their respective properties is bound, or any order of
any court or administrative agency entered in any proceedings to which  either
of  the Borrower or the Subsidiary Guarantor is or has been a party or violate
any applicable statute, rule or regulation.

      (e)   Liens and Security Interests.

            (1)   The security interest granted by this Indenture constitutes,
a  valid perfected  assignment  of  and security  interest  in the  properties
assigned hereby  having a priority over  any other security interests  in such
property.

            (2)   Except pursuant to this Indenture  (or as permitted by  this
Indenture)  or the  Mortgages  (or  as permitted  by  the Mortgages),  neither
Borrower  nor the  Subsidiary  Guarantor has  assigned,  pledged or  otherwise
granted a  security interest in  or lien on,  and shall not  assign, pledge or
otherwise grant a security interest  in or lien on, the whole or  any part of,
the Vessels or any rights assigned by the Indenture or the Mortgages.

      (f)   Notices of Defaults. Upon the  occurrence of any Event of Default,
the Borrower and  the Subsidiary Guarantor shall promptly  notify the Trustee,
the Agent and the Banks by telecopy, confirmed by letter, unless such Event of
Default shall have been cured.


Section 2.02.  The Trustee represents and warrants that:

      (a)   Organization Existence.  The Trustee was duly organized and is now
validly existing as a banking corporation under laws of the State of Delaware.

      (b)   Power  and Authority.   The  Trustee had  and has legal  power and
authority to enter into and carry out the terms of this Indenture.

      (c)   Due Authorization,  Execution and Enforceability.   This Indenture
has been duly authorized  by all necessary corporate action on the part of the
Trustee,  has been  duly executed and  delivered by the  Trustee and, assuming
this  Indenture constitutes  the legal,  valid and  binding obligation  of the
other parties hereto, enforceable against  such parties in accordance with its
terms, constitutes, in accordance with its terms, the legal, valid and binding
agreement of the Trustee enforceable against the Trustee, except to the extent
limited by  applicable bankruptcy,  reorganization, insolvency,  moratorium or
other laws of  general application relating to or affecting the enforcement of
creditors'  rights as  from  time  to time  in  effect  and general  equitable
principles.

      (d)   No Violations.  The  consummation of the transactions contemplated
by,  and compliance by  the Trustee with  all of the  terms and provisions of,
this  Indenture do not and will not  violate any provisions of the Articles of
Incorporation or By-Laws of the Trustee and will not result in a breach of the
terms and  provisions  of, or  constitute a  default under,  any agreement  or
undertaking of the Trustee or by which it  or any of its property is bound, or
any order  of any court or administrative agency entered in any proceedings to
which the Trustee  is or has been  a party or violate any  applicable statute,
rule or regulation.


                                   ARTICLE 3
                       REMEDIES UPON AN EVENT OF DEFAULT

Section 3.01.     Remedies.

      If  an Event  of  Default shall  have  occurred and  be continuing,  the
Trustee shall be  entitled to, and shall upon  receipt of written Instructions
of the  Agent, without further notice  or demand, enforce and  exercise all or
any of its rights and  powers as a mortgagee under the respective Mortgages at
law, in equity or in admiralty.

Section 3.02.     Suits for Enforcement by Trustee.

      Subject to the provisions of Section  3.08, if an Event of Default shall
occur and  be continuing  and the  Trustee has  Actual Knowledge  thereof, the
Trustee  may in its discretion proceed to protect its rights and the rights of
the  Banks by such appropriate judicial  proceedings as the Trustee shall deem
most effectual  to protect any  such rights,  or to protect  any other  proper
right, power  or remedy  then available  to the Trustee  under the  Mortgages,
provided that  the Trustee shall  immediately thereafter notify the  Agent and
the Banks by telecopier of any action taken or proposed to be taken  hereunder
and shall thereafter act only  in accordance with the written Instructions  of
the Agent or the Required Banks or either thereof.

Section 3.03.     Enforcement of Claims by the Trustee. 

      All rights of action  and claims under this Indenture may  be prosecuted
and enforced by the Trustee in a proceeding brought in its own name as trustee
of an express  trust, and any recovery of judgment  shall, after provision for
the  payment  of  the  reasonable compensation,  expenses,  disbursements  and
advances  of the  Trustee, its agents  or counsel,  be for the  benefit of the
Banks.

Section 3.04.     Application of Monies Collected After Default.

      Any monies collected by the Trustee  pursuant to any enforcement of  any
of its rights hereunder or  under any other Credit Document on account  of the
occurrence of an Event of Default shall be applied as follows:

            (i)   to the payment or reimbursement  of all amounts owing to the
                  Trustee of the  type described in clauses (ii)  and (iii) of
                  the definition of Obligations;

            (ii)  second, to  the extent  moneys remain after  the application
                  pursuant to the preceding clause (i), an amount equal to the
                  outstanding  Obligations  shall be  paid  to  the Agent  for
                  distribution  to the  Secured  Creditors, with  each Secured
                  Creditor receiving an amount  equal to such Obligations held
                  by it or,  if the proceeds are  insufficient to pay in  full
                  all such Obligations, its Pro Rata Share (as  defined below)
                  of the amount remaining to be distributed; and

            (iii) third,  to the  extent moneys  remain after  the application
                  pursuant  to  the  preceding   clauses  (i)  and  (ii),  and
                  following  the termination  of  this  Indenture pursuant  to
                  Article 5, any  surplus then remaining shall be  paid to the
                  Borrower or the  Subsidiary Guarantor, subject, however,  to
                  the rights of  the holder of any then existing lien of which
                  the Trustee has actual notice (without investigation).

      For  purposes  of this  Indenture  "Pro  Rata  Share" shall  mean,  when
calculating  a Secured  Creditors portion  of  any distribution  or amount  in
respect of  any Obligations, the amount (expressed as a percentage) equal to a
fraction the numerator of which is the then unpaid amount  of such Obligations
owning to or held by such Secured Creditor and the denominator of which is the
then outstanding amount of all such Obligations.  For  purposes of determining
the amount payable to each Secured Creditor, the Trustee shall  be entitled to
request each Secured Creditor to furnish  it with written notice of the amount
of Obligations then owed to it and shall be entitled to reply upon the amounts
stated therein in making such distribution.

Section 3.05.     Rights and Remedies Cumulative.

      No right or remedy herein conferred upon or reserved to the Trustee, the
Agent or any  of the Banks is intended  to be exclusive of any  other right or
remedy, and every right  and remedy shall, to the extent permitted  by law, be
cumulative and in addition to every other right and remedy given hereunder, or
under  the other Security  Documents or now  or hereafter existing  at law, in
equity, in  admiralty, by statute or otherwise. The assertion or employment of
any right or remedy hereunder or otherwise shall not prevent the concurrent or
subsequent assertion  or employment  of another right  or remedy  hereunder or
otherwise.

Section 3.06.     Delay or Omission Not Waiver.

      No delay or  omission of the Indenture Trustee,  the Agent or of  any of
the  Banks to exercise any right or  remedy accruing upon any Event of Default
nor  any course of dealings among the  Indenture Trustee, the Agent, the Banks
and the Borrower  and the Subsidiary Guarantor shall impair  any such right or
remedy  or constitute  a waiver  of any  Event of  Default or  an acquiescence
therein nor shall any single exercise or partial exercise of any such right or
remedy preclude  any other exercise  thereof or any  exercise of any  other or
further  right or remedy;  nor shall the acceptance  by the Indenture Trustee,
the Agent or any of the  Banks of any security or  any payment of any part  of
the Credit  Facility maturing after any Event of  Default or of any payment on
account of  any past default be construed to be  a waiver of any right to take
advantage of  any future Event of Default or of  any past Event of Default not
completely cured  thereby.   To the  extent permitted by  law, every  right or
remedy given by this Indenture or any other Security Document or by law to the
Indenture Trustee, the Agent or any of the Banks may be exercised from time to
time,  and as  often and  in such  order as  may be  deemed expedient,  by the
Indenture Trustee, the Agent or the Banks, as the case may be.

Section 3.07.     Discontinuance of Enforcement Proceedings.

      In case the Indenture Trustee shall have proceeded to enforce any right,
power or remedy under this Indenture or under any Mortgage and such proceeding
shall have  been discontinued or abandoned  for any reason or  shall have been
adversely determined to the  Indenture Trustee, then, and in every  such case,
the  Borrower, the  Subsidiary Guarantor  and the  Indenture Trustee  shall be
restored to their former  positions and rights  hereunder with respect to  the
property  subject or  intended  to  be subject  to  this Indenture  or  either
Mortgage,  as the  case may  be, and  all rights,  remedies and powers  of the
Indenture Trustee shall continue as if no such proceedings had been taken.

Section 3.08.     Control by the Required Banks.

      Subject to (i)  the provisions of Section 3.09 and (ii) the requirements
of Sections 9 and  37 of the Shipping Act, 1916, as amended,  the Agent or the
Required Banks shall have the right by written Instructions to the Trustee, to
direct the time, method and place of conducting any proceeding  for any remedy
available to the  Trustee under this  Indenture or any Mortgage  or exercising
any  trust or  power conferred  on  the Trustee  herein or  therein, and  upon
receipt of such  written Instructions, the Trustee, subject  to the provisions
of Article 4,  shall take the actions specified in  such written Instructions,
provided that such written instructions shall not be in conflict with any rule
of law or with this or expose the Indenture Trustee to personal liability.

Section 3.09.     Undertaking for Costs.

      The  parties to  this  Indenture  agree, and  the  Banks  by making  the
Facility available shall be deemed  to have agreed, that any court may  in its
discretion  require, in any  suit for the  enforcement of any  right or remedy
under this Indenture, or in any suit against the Trustee for any  action taken
or omitted by it as Trustee, the filing  by any party litigant in such suit of
an undertaking  to pay the costs of such suit,  and that such court may in its
discretion  assess  reasonable  costs, including  reasonable  attorneys' fees,
against any party litigant  in such suit, having due regard  to the merits and
good  faith of  the claims or  defenses made  by such party  litigant; but the
provisions  of this  Section shall  not apply  to any  suit instituted  by the
Trustee, or to any suit instituted  by the Banks, unless otherwise required by
law.

Section 3.10.     Waiver of Demand, etc.

      Each  of  the Borrower  and  the Subsidiary  Guarantor  hereby expressly
waives  demand and  presentment for  payment, notice  of nonpayment,  protest,
notice of protest,  notice of  dishonor, bringing  of suit,  and diligence  in
taking any  action to collect  amounts called  for under  this Indenture,  the
other Security Documents,  the Subsidiary Guaranty or the  Credit Agreement at
any time in connection herewith and therewith.

                                   ARTICLE 4
                                  THE TRUSTEE

Section 4.01.     Certain Duties and Liabilities.

      (a)   The Trustee undertakes to perform such duties and only such duties
as are specifically  set forth in this Indenture, and  no implied covenants or
obligations shall be read into this Indenture against the Trustee.

      (b)   Without  limiting the provisions of paragraph  (a) of this Section
4.01 or  the provisions of Section 3.08,  in any case where  the terms of this
Indenture or  any Mortgage  vest in  the Trustee non-mandatory,  discretionary
authority to take any action or give any consent or approval  upon the request
of  either of the  Borrower, the Subsidiary  Guarantor, the Agent,  any of the
Banks or otherwise,  the Trustee shall  be required, first  to give notice  of
such proposed  action, approval or consent  to the Agent, and  upon receipt of
written Instructions  of the Agent, the Trustee shall act with respect to such
action, approval or consent only in accordance with such written Instructions.

      (c)   In case an Event of Default shall have occurred and be continuing,
the Trustee shall (except as otherwise provided in Section 3.08) exercise such
of the  rights and powers  vested in it  by this Indenture,  and use  the same
degree of care and skill in their exercise, as a prudent man would exercise or
use under the circumstances in the conduct of his own affairs.

      (d)   No provision of  this Indenture shall be construed  to relieve the
Trustee  from  liability for  its  own  gross negligence  or  its own  willful
misconduct or that of its employees, agents, officers and attorneys.

      (e)   Save for the provisions of paragraph (d) hereof, the Trustee shall
not be liable with respect to any action taken or omitted to be taken by it in
accordance with Instructions  of the Agent or  the Required Banks  relating to
the  exercise of any trust, right, remedy  or power conferred upon the Trustee
under  this  Indenture or  any  Mortgage, or  exercisable by  it  hereunder or
thereunder.

      (f)   None of the provisions of this Indenture shall require the Trustee
to expend  or  risk  its  own  funds or  otherwise  incur  personal  financial
liability in the performance of any of its duties or in the exercise of any of
its rights  or powers, if  there is reasonable  ground for believing  that the
repayment of such funds or liability is not reasonably assured to it under the
terms of  this Indenture or by special agreement of  the Agent or the Required
Banks.

      (g)   Whether  or not therein expressly  so provided, every provision of
this  Indenture relating  to  the conduct  or  affecting the  liability of  or
affording protection to the Trustee shall be subject to the provisions of this
Section.

      (h)   The  Trustee  shall  not  be deemed  to  have  knowledge  ("Actual
Knowledge")  of the existence of an Event  of Default unless the Trustee shall
have received telecopied or other written notice of such Event of Default from
the Agent or Required Banks,  or a Responsible Officer in the  Corporate Trust
Office of the Trustee shall have actual knowledge of such Event of Default.

      (i)   The Trustee shall promptly, upon receiving Actual  Knowledge of an
Event of Default, inform the Agent and the Banks by telex  or telecopy of such
Event of Default.

      (j)   None of the provisions of this Indenture shall require the Trustee
to review  or hold policies  of insurance or  to make any  claims or  take any
other action with respect to  such insurance unless specifically instructed to
do so by the Agent.

      (k)   The Trustee agrees  that it will in its individual capacity and at
its own cost and expense promptly take such action as may be necessary duly to
discharge and satisfy in full all  liens on the Mortgages and other collateral
security held by the Trustee attributable to it in its individual capacity.

Section 4.02.     Certain Rights of Trustee.

      Except as otherwise provided in Section 4.01:

      (a)   The  Trustee  may  rely  and  shall  be  protected  in  acting  or
refraining  from  acting  upon  any  written  statement,  instrument,  notice,
request, instruction, direction or other paper  or document believed by it  to
be  genuine and  to  have been  signed  or presented  by the  proper  party or
parties;

      (b)   The Trustee  may consult  with counsel and  the written  advice of
such  counsel shall  be  full  and complete  authorization  and protection  in
respect of any  action taken, suffered or omitted by  it hereunder in reliance
thereon and in  compliance therewith, absent bad faith,  negligence or willful
misconduct on the part of the Trustee;

      (c)   The  Trustee shall be under  no obligation to  exercise any of the
rights or powers vested in it by this Indenture at the request or direction of
the Agent or  the Required Banks pursuant to this  Indenture, unless the Agent
or the Required Banks shall have offered to the Trustee reasonable security or
indemnity  against the  costs and expenses  which might  be incurred  by it in
compliance with such request or direction; 

      (d)   The Trustee shall not be bound  to make any investigation into the
facts  or  matters  stated  in  any  statement,  instrument, notice,  request,
direction or  other paper or  document referred  to in paragraph  (a) of  this
Section;

      (e)   The  Trustee may execute any of the  trusts or powers hereunder or
perform  any duties  hereunder  either directly  or by  or  through agents  or
attorneys and the  Trustee shall not be responsible for  the negligence of any
attorney or agent appointed by the Indenture Trustee with due care; and

      (f)   Should the Trustee receive written Instructions from the  Agent or
the Required  Banks which the  Trustee, in  its sole opinion,  believes to  be
conflicting Instructions, the Trustee  shall have no duty to act  thereon, but
if  indemnified to its satisfaction for  any costs, expenses or liabilities it
may  incur, it shall  seek instructions concerning  its responsibilities under
this Indenture with respect to such conflicting Instructions from any court of
competent jurisdiction.

Section 4.03.     Not Responsible for Recitals.

      The recitals contained herein  shall be taken as the  statements of each
of the  Borrower and  the Subsidiary  Guarantor, and  the  Trustee assumes  no
responsibility for their correctness. The  Trustee makes no representations as
to the validity or sufficiency of this Indenture or any Mortgage.

Section 4.04.     Money Held in Trust.

      Any money held by the Trustee in trust hereunder need  not be segregated
from other funds  except to the extent required by law.   The Trustee shall be
under no liability for interest  on any money received by it  hereunder except
as otherwise  agreed with  the  Borrower and  the Subsidiary  Guarantor.   Any
payments made  by the  Trustee under  this Indenture shall  be made  only from
monies held by it in trust hereunder.

Section 4.05.     Compensation, Reimbursement and Indemnification.

      The Borrower and the  Subsidiary Guarantor jointly and  severally agree,
subject to the provisions of Article 5:

      (a)   To pay  to the Trustee  from time to time  reasonable compensation
for  all services rendered  by it hereunder  (which compensation  shall not be
limited to any provision of law in regard to  the compensation of a trustee of
an express trust);

      (b)   To  reimburse the  Trustee  upon its  request  for all  reasonable
expenses,  disbursements and  advances  incurred  or made  by  the Trustee  in
accordance  with   any  provision   of  this  Indenture   (including,  without
limitation,  reasonable compensation  and  expenses and  disbursements of  its
agents and counsel and expenses  incurred in enforcing its rights  or remedies
under any Security Document), except any such expense, disbursement or advance
as may be attributable to its gross negligence or willful misconduct; and

      (c)   To indemnify  the Trustee, its directors,  officers, employees and
agents  for, and  to hold it  and them  harmless against, any  and all claims,
losses,  liabilities  or  expenses of  any  kind  (including attorneys'  fees)
incurred without gross  negligence or willful misconduct on its  or their part
and arising out of or  in connection with the acceptance or  administration of
this trust, including the costs and expenses of defending itself or themselves
against any claim of liability in the premises.

      (d)   That to secure the obligations  of the Borrower and the Subsidiary
Guarantor under this Section 4.05, the Trustee shall have a lien  prior to the
rights of the Banks on all money  or property held or collected by the Trustee
pursuant to this Indenture.

Section 4.06.     Corporate Trustee Required; Eligibility.

      There shall at all times be a Trustee hereunder which shall be a bank or
trust company which (i) is organized as a corporation or  banking association,
and  is doing  business under  the  laws of  the United  States  or any  State
thereof,  (ii) is  authorized  under  such laws  to  exercise corporate  trust
powers, (iii) is a citizen of the United States  within the meaning of Section
2 of the  Shipping Act, 1916,  as amended, (iv)  is subject to  supervision or
examination by  federal or state  authority, (v)  has a  combined capital  and
surplus (as set forth in its most recent published report of  condition) of at
least  $50,000,000 and  (vi)  is  a  trustee  approved  by  the  Secretary  of
Transportation pursuant to  Section 9  and, if applicable,  Section 37 of  the
Shipping Act, 1916,  as amended,  and Chapter 313  of Title  46 of the  United
States Code.  The  Trustee hereby  represents and  warrants that  on the  date
hereof it complies with the requirements  of the foregoing sentence. If at any
time the  Trustee shall cease to be eligible in accordance with the provisions
of this Section, it shall resign immediately in the manner and with the effect
hereinafter specified in this Article.

Section 4.07.     Disqualification,  Removal  or Resignation  of  the Trustee;
Successor Trustees.

      (a)   If  the Trustee  ceases at any  time to  be a  Trustee approved by
MARAD, it promptly will so notify the Agent and resign hereunder and cooperate
in all reasonable respects in the appointment of its successor, but shall have
no other  liability hereunder for loss  of its status as  an approved trustee.
The Agent  shall immediately  appoint a qualified  successor trustee  or shall
take the actions provided for below in the event a qualified successor trustee
cannot be found by it. In addition, the Agent may in its discretion remove the
Trustee  at any  time, without  cause,  by causing  a written  notice of  such
removal to be delivered to the Trustee, the Borrower, the Subsidiary Guarantor
and the Banks  which notice shall state the effective date and the name of the
qualified  successor  trustee selected  by  the  Agent.  No removal  shall  be
effective unless a qualified successor trustee is available and willing to act
for  the Banks  or  unless the  actions  provided  for below  in  the event  a
qualified successor trustee is not available to the Agent have been initiated.
In the  event of discharge or removal, the Trustee shall execute all documents
and take such  other actions  as necessary or  desirable to the  Agent or  the
Required Banks to  transfer the Trustee's function of trustee to the successor
trustee. The  compensation of the Trustee shall cease as of the effective date
of discharge  or removal, except  those rights of indemnification  which shall
survive  its removal.  Upon discharge  or removal,  the Trustee  shall, within
thirty  days, furnish  the Agent,  the  Banks, the  successor trustee  and the
Borrower  and the  Subsidiary Guarantor  a  complete accounting  of the  trust
estate, its  compensation, costs and expenses  as of the date  of discharge or
removal. Such amount shall be promptly paid by the Borrower and the Subsidiary
Guarantor. 

      (b)   (i)   The Trustee or any successor  thereto may resign at any time
without  cause by  giving at  least ninety  days prior  written notice  to the
Agent,  the Banks  and  to the  Borrower and  the  Subsidiary Guarantor,  such
resignation to  be effective on the  date specified in such  notice. The Agent
shall, prior to the date specified in such notice, appoint a successor trustee
meeting  the requirements  of  Section  4.06.  If the  Agent  shall  not  have
appointed  such a  qualified successor  trustee within  sixty days  after such
notice,  the Trustee  may apply  to  any court  of  competent jurisdiction  to
appoint a  qualified successor trustee  to act until such  time, if any,  as a
successor  shall  have been  appointed by  the Agent  as herein  provided. Any
qualified successor trustee  so appointed by such court  shall immediately and
without further act be superseded by any qualified successor trustee appointed
by the  Agent. Any banking institution  or trust company  becoming a successor
trustee hereunder shall  be deemed  the Trustee for  all purposes hereof,  and
each reference herein to the Trustee shall thereafter be deemed a reference to
such banking institution or trust company.

            (ii)  Any successor trustee,  whether appointed by  a court or  by
the Agent  as provided in subparagraph  (b) (i), shall execute  and deliver to
the  predecessor  trustee  an   instrument  accepting  such  appointment,  and
thereupon such  successor trustee,  without further  act, shall become  vested
with all  the estates, properties,  rights, powers, duties  and trusts  of the
predecessor trustee in  the trust hereunder with like  effect as if originally
named as  the Trustee herein; and  such predecessor trustee  shall execute and
deliver an instrument transferring to  such successor trustee, upon the trusts
herein  expressed, all  the estates,  properties, rights,  powers, duties  and
trusts of  such predecessor trustee,  and such predecessor trustee  shall duly
assign, transfer, deliver and pay over to such successor trustee  any property
or monies  or other things of value then held by such predecessor trustee upon
the trusts herein expressed.

            (iii) Any successor trustee, however appointed, shall be a trustee
approved by MARAD in accordance with the provisions of Chapter 313 of Title 46
of the United States Code.

            (iv)  Any bank into  which the Trustee may be  merged or converted
or with which it may be  consolidated, or any bank resulting from any  merger,
conversion on consolidation to which the Trustee shall be a party, or any bank
to  which  substantially all  the  business of  the  Indenture Trustee  may be
transferred, shall,  subject to  the terms  of  this Section  4.07(b), be  the
Trustee under this  Indenture without any further act,  provided the successor
bank remains qualified.

            (v)   Within sixty days of the  effective date of its resignation,
the Trustee  shall provide the Agent  a statement and accounting  as though it
had been removed in accordance with Section 4.07(a) hereof.

      (c)   A successor trustee shall be appointed by an instrument in writing
which  shall state the  effective date on  which said  successor trustee shall
become the Trustee hereunder and  the holder of this instrument and  the trust
estate,  which   document  shall  contain  the   executed  acknowledgement  of
acceptance by  the successor trustee  of the trust,  the trust estate  and the
duties of the Trustee as herein provided.

      The  Trustee or  any  predecessor trustee  shall duly  assign, transfer,
deliver  and pay  over to  any successor  trustee any  property and  monies or
things of value subject to the trust hereunder and  held by the Trustee or any
predecessor trustee, as the case may  be. Should any act or further instrument
from  the Trustee, any  predecessor trustee, or  the Banks be  required by any
successor  trustee for more  fully and certainly vesting  in and confirming to
such successor  trustee such estates, properties, rights, remedies and trusts,
then  on  request by  such  successor  trustee  any  and  all  such  acts  and
instruments shall be  done, made, executed, acknowledged and  delivered by the
Indenture Trustee, any predecessor trustee, or the Banks, as the case may be.

      (d)   Should for any  reason the Agent  be unable to locate  a qualified
successor trustee,  then  prior  to ceasing  to  act as  trustee  or  becoming
disqualified to do so the Trustee shall cooperate with the Agent and the Banks
in the following:

            (i)   First,   petition  MARAD   for  approval   of  a   presently
unqualified bank or trust  company satisfactory to  the Agent or the  Required
Banks and willing to act as trustee;

            (ii)  If  MARAD approval  cannot  be obtained  for such  available
unqualified trustee then the Agent or the Required Banks and the Trustee shall
petition the United  States District Court  for the Southern  District of  New
York  for instructions to  the Trustee in  order that the  trust estate may be
preserved  and to prevent the Agent, the  Banks or the Trustee from falling in
violation of law. To the  extent that such may  be required or necessary,  the
parties  hereto agree  that  said  Court has  jurisdiction  for this  purpose;
however, if, in the interest of justice, the said Court determines to transfer
the  matter to any other United States court,  the parties hereby agree to the
jurisdiction of  such transferee court. Any such petition shall be served upon
the parties hereto and MARAD, with a copy mailed to the chief counsel of MARAD
and the Borrower  and the Subsidiary Guarantor. The Trustee  and any successor
trustee hereby  agree to abide by  the instructions of the  court issuing same
and to all acts, execute such documents and instructions as may be required in
connection  therewith and  all other  instruments  and documents  necessary to
preserve  the trust  estate for  the benefit  of the Banks,  as beneficiaries,
under the terms  hereof as well as preserving the  adequacy and enforceability
of any interest held in the trust estate.

Section 4.08.     Co-trustees and Separate Trustees.

      At any time or times, for the purpose of meeting  the legal requirements
of any jurisdiction  in which any  security may  at the time  be located,  the
Borrower,  the  Subsidiary Guarantor  and  the  Trustee  shall have  power  to
appoint, and upon  the written  request of the  Trustee, the  Agent or of  the
Required  Banks, the  Borrower and  the  Subsidiary Guarantor  shall for  such
purpose join with  the Trustee in execution,  delivery and performance  of all
instruments and agreements necessary or proper to appoint, one or more persons
approved by the Trustee either to act as co-trustee, jointly with the Trustee,
and,  if deemed  necessary  by the  appointing  party, as  secured party  with
respect to all or any part of the security, or to act as separate trustee and,
if deemed  necessary as aforesaid, as  secured party with respect  to any such
property, in either case with such powers as may be provided in the instrument
of  appointment,  and to  vest  in  such person  or  persons  in the  capacity
aforesaid, any property, title, right  or power deemed necessary or desirable,
subject  to the  other provisions  of this  Section. If  the Borrower  and the
Subsidiary Guarantor do not join in such appointment within fifteen days after
the receipt by them  of a request so to do, or in case an Event of Default has
occurred and  is continuing, the Trustee acting alone shall have power to make
such appointment.

      Any person appointed  as co-trustee or separate trustee  hereunder shall
satisfy the  qualifications prescribed in clauses (i), (iii), (iv) and (vi) of
Section 4.06.

      Should  any  written instrument  from  the Borrower  and  the Subsidiary
Guarantor be  required by any co-trustee or  separate trustee so appointed for
more fully  confirming to such  co-trustee or separate trustee  such property,
title,  right or  power, any and  all such  instruments shall,  on request, be
executed, acknowledged  and  delivered  by  the Borrower  and  the  Subsidiary
Guarantor.

      Every co-trustee or  separate trustee shall, to the  extent permitted by
law, but  to such extent  only, be appointed  subject to the  following terms,
namely:

      (a)   All rights, powers, duties and obligations hereunder in respect of
the custody  of the Security Documents held by the Trustee hereunder, shall be
exercised solely by the Trustee.

      (b)   The  rights, powers,  duties and  obligations hereby  conferred or
imposed  upon  the  Trustee  in  respect  of  any  property  covered  by  such
appointment shall be conferred or  imposed upon and exercised or performed  by
the Trustee or by the Trustee and such co-trustee or separate trustee jointly,
as  shall be provided in the instrument appointing such co-trustee or separate
Trustee, except to the  extent that under any law or any jurisdiction in which
any  particular act is  to be performed,  the Trustee shall  be incompetent or
unqualified to perform  such act, in which  event such rights, powers,  duties
and  obligations  shall be  exercised  and  performed  by such  co-trustee  or
separate trustee.

      (c)   The  Trustee at any time, by an  instrument in writing executed by
it,  with  the  concurrence  of  the Borrower  and  the  Subsidiary  Guarantor
evidenced by separate  resolutions of the  board of directors  of each of  the
Borrower and the Subsidiary Guarantor, may accept the resignation of or remove
any  co-trustee or separate trustee appointed under this Section, and, in case
an Event of Default shall have occurred and be continuing, the Trustee may act
alone  in the  execution,  delivery  and performance  of  all instruments  and
agreements necessary  or proper to  effectuate such resignation or  removal. A
successor to any co-trustee or separate trustee so resigned or  removed may be
appointed in the manner provided in this Section.

      (d)   No co-trustee  or separate  trustee hereunder shall  be personally
liable  by reason  of any  act or omission  of the  Trustee or  any other such
trustee hereunder.

      (e)   Any notice of instruction delivered to the Trustee by the Agent or
the Required  Banks  shall be  deemed  to have  been  delivered to  each  such
co-trustee and separate trustee.

                                   ARTICLE 5
                          SATISFACTION AND DISCHARGE

Section 5.01.     General.

      If the  Borrower and the Subsidiary  Guarantor shall pay or  cause to be
paid  all of the  Obligations, then this  Indenture and the  liens, estate and
rights  and interest  hereby and  thereby created  shall cease,  determine and
become null  and void, and the  Trustee, upon written request  of the Borrower
and the Subsidiary Guarantor, accompanied  by an opinion of counsel acceptable
to the Trustee, and at the cost and expense of the Borrower and the Subsidiary
Guarantor, shall forthwith cause satisfaction and discharge of  this Indenture
and  shall execute and  deliver to the  Borrower and the  Subsidiary Guarantor
such instruments as may be  necessary, duly acknowledging the satisfaction and
discharge  of  this Indenture  and  forthwith  the  estate, right,  title  and
interest of the Trustee in and to any property held by it under this Indenture
or  under any Mortgage  shall thereupon cease,  determine and  become null and
void,  and  the Trustee  shall  transfer  the same  to  the  Borrower and  the
Subsidiary Guarantor.


Section 5.02.     Survival of Certain Obligations.

      Notwithstanding the  satisfaction and  discharge of this  Indenture, (a)
the liabilities and  obligations of the Borrower and  the Subsidiary Guarantor
to  the Trustee under Section 4.05 shall survive, and (b) if the Borrower's or
the  Subsidiary Guarantor's  trustee in  bankruptcy  or any  Person under  any
applicable bankruptcy law shall recover all or part of the Obligations payable
hereunder from the  Trustee or from any  of the Banks, this Indenture  and all
other Security  Documents  shall be  deemed  not to  have  been satisfied  and
discharged  but shall continue to be in full force and effect to the extent of
the amount so recovered.

                                   ARTICLE 6
                            SUPPLEMENTAL INDENTURES

Section 6.01.     Waivers and Supplemental Indentures With Consent of Banks.

      This  Indenture may  not be  waived, modified,  amended  or supplemented
without the prior written consent of the Agent or the Required Banks.

Section 6.02.     Execution of Supplemental Indentures.

      In  executing,  or  accepting  the  additional  trusts  created  by  any
indenture  supplemental  hereto or  the  modifications thereby  of  the trusts
created by  this Indenture,  the  Trustee shall  be entitled  to receive,  and
(subject to  Sections 4.01 and 6.01) shall be fully protected in relying upon,
an opinion  of counsel  of the Borrower  and the Subsidiary  Guarantor stating
that the execution  of such Supplemental Indenture is  authorized or permitted
by this Indenture.  The Trustee may, but shall not be obligated to, enter into
any such Supplemental Indenture which affects the Trustee's own rights, duties
or immunities under this Indenture or otherwise.

Section 6.03.     Effect of Supplemental Indentures.

      Upon  the execution of any indenture supplemental hereto, this Indenture
shall be  modified in  accordance therewith,  and such Supplemental  Indenture
shall form a part of this Indenture for all purposes.

                                   ARTICLE 7
                  INSTRUCTIONS OF THE AGENT OR REQUIRED BANKS

Section 7.01.     Instructions of the Agent or Required Banks.

      (a)   Any  request, demand,  authorization, direction,  notice, consent,
waiver of or other action required or  permitted by this Indenture to be given
by  the  Agent  or  the  Required  Banks  (sometimes  referred  to  herein  as
"Instructions") shall be given in accordance with Section 1.02.   The Trustee,
the Borrower and the Subsidiary Guarantor shall be entitled to assume that any
Instructions so  given have  been duly authorized.   No instructions  shall be
given which are in violation  of this Indenture (or the Credit  Agreement, the
Subsidiary Guaranty or any of the Security Documents, as defined in the Credit
Agreement) or in violation of any applicable laws. 

      (b)   Unless  and  until the  Trustee  shall  have received  conflicting
Instructions  from the  Agent  or  the Required  Banks,  any request,  demand,
authorization, direction, notice, consent, waiver or other action by the Agent
or the Required Banks  shall bind the other Banks in respect  of anything done
or  suffered  to  be done  by  the  Indenture  Trustee,  the Borrower  or  the
Subsidiary Guarantor in reliance thereon.


                                   ARTICLE 8
                            LIMITATION OF LIABILITY

Section 8.01.     Limitation of Liability of Wilmington Trust Company.

      It is  expressly understood and  agreed by the parties  hereto that this
Indenture   is  executed  and  delivered   by  Wilmington  Trust  Company  not
individually  but solely  as  Indenture  Trustee and,  except  as provided  in
Section  4.01, nothing  contained herein  shall be  construed as  creating any
liability  on Wilmington  Trust Company  individually, including  any covenant
either express or implied herein, all such liability,  if any, being expressly
waived by all parties hereto.   


      IN WITNESS WHEREOF, the parties hereto  have caused this Indenture to be
duly executed on the day and year first above written.


                              READING & BATES DRILLING CO.


                              By:  ______________________________
                                    Title:

                              READING & BATES EXPLORATION CO.


                              By:  ________________________________
                                    Title:

                              WILMINGTON  TRUST COMPANY, not in its individual
                              capacity but solely as Trustee  


                              By:  ______________________________
                                    Title:



                                ACKNOWLEDGEMENT



STATE OF NEW YORK       )
                        ) S.S.
COUNTY OF NEW YORK      )



On   this  ______   day  of   April,  1996   before  me   personally  appeared
_________________ to me  known who being by  me duly sworn did  depose and say
that he resides at  ___________________________, that he is __________________
for READING  & BATES  DRILLING CO.,  the corporation  described  in and  which
executed the  foregoing instrument;  and that  he signed  his name  thereto by
order of the Board of Directors of READING & BATES DRILLING CO.


                          __________________________
                                 Notary Public




                                ACKNOWLEDGEMENT



STATE OF NEW YORK       )
                        ) S.S.
COUNTY OF NEW YORK      )



On   this  ______   day  of   April,  1996   before  me   personally  appeared
_________________  to me known who being  by me duly sworn  did depose and say
that he resides at  ___________________________, that he is __________________
for READING &  BATES EXPLORATION CO., the  corporation described in and  which
executed the  foregoing instrument; and  that he  signed his  name thereto  by
order of the Board of Directors of READING & BATES EXPLORATION CO.


                          __________________________
                                 Notary Public





                                ACKNOWLEDGEMENT



STATE OF DELAWARE       )
                        ) S.S.
COUNTY OF NEW CASTLE    )



On   this  ______   day  of   April,  1996   before  me   personally  appeared
_________________ to me  known who being by  me duly sworn did  depose and say
that he resides at  ___________________________, that he is __________________
for WILMINGTON TRUST COMPANY, the  corporation described in and which executed
the foregoing instrument; and that he signed his name  thereto by order of the
Board of Directors of WILMINGTON TRUST COMPANY.


                          __________________________
                                 Notary Public



                                                                Exhibit 10.95 


                      COLLATERAL ASSIGNMENT OF INSURANCE


      READING  &  BATES DRILLING  CO.,  an  Oklahoma corporation  (hereinafter
called the  "Assignor"), the  owner of the  United States  registered offshore
drilling rig  JACK  BATES (the  "Rig"), in  consideration of  One Dollar  ($1)
lawful  money of  the United  States of  America and  other good  and valuable
consideration, the receipt and  sufficiency of which are  hereby acknowledged,
has sold,  assigned, transferred, set  over, and granted a  security interest,
and  by this  instrument does  sell, assign,  transfer, set  over and  grant a
security  interest  unto Wilmington  Trust  Company,  not  in  its  individual
capacity but as Trustee for the  Banks (as that term is defined in  the Credit
Agreement, as defined below) (hereinafter  called the "Assignee") and unto the
Assignee's successors  and assigns, to it  and its successors  and assigns own
proper use  and benefit, and  as collateral security  for the full  and prompt
payment  when  due  (whether  at  the  stated  maturity,  by  acceleration  or
otherwise) of all obligations and liabilities of the Assignor, now existing or
hereafter incurred, under,  arising out of  or in connection  with any  Credit
Document (as that term is  defined in the Credit Agreement, as  defined below)
to which it is a party and the due performance and compliance by  the Assignor
with the terms of each such Credit Document, all right, title and  interest of
the  Assignor  under,  in  and  to  the   following  (all  of  the  following,
collectively,  the "Insurance  Collateral"):   (i) all  insurances (including,
without limitation, all certificates of  entry in protection and indemnity and
war risks  associations or clubs) in  respect of the  Rig, whether heretofore,
now  or hereafter effected, and all renewals  of or replacements for the same,
(ii) except as hereinafter provided, all  claims, returns of premium and other
moneys and claims for moneys due and to become due under or in respect of said
insurances, (iii) all other rights of the Assignor under or in respect of said
insurances and (iv)  any proceeds of any  of the foregoing.   It is  expressly
agreed  that anything herein  contained to  the contrary  notwithstanding, the
Assignor  shall remain  liable under  said insurances  to perform  all of  the
obligations assumed by it thereunder and the Assignee shall have no obligation
or liability (including, without limitation,  any obligation or liability with
respect  to  the  payment  of  premiums,  calls  or  assessments)  under  said
insurances by  reason of or arising  out of this instrument  of assignment nor
shall  the  Assignee be  required or  obligated in  any  manner to  perform or
fulfill any obligations  of the Assignor under or pursuant  to said insurances
or to make any payment or to make  any inquiry as to the nature or sufficiency
of any payment received by it or to  present or file any claim, or to take any
other action to  collect or enforce  the payment of any  amounts which or  may
have been assigned to it or to which  it may be entitled hereunder at any time
or times.

      This Assignment  is made pursuant  to the Credit Agreement,  dated April
30, 1996 (as  the same may be  amended, modified or supplemented  from time to
time,  the "Credit  Agreement"), by  and  among Reading  & Bates  Corporation,
Reading  & Bates Drilling Co., the Banks  (as defined therein) and Christiania
Bank og Kreditkasse, New York Branch, as Agent.

      The Assignor  hereby constitutes  the Assignee  and  its successors  and
assigns, the Assignor's true and lawful attorney, with full power (in the name
of the Assignor or otherwise) to  ask, require, demand, receive, compound  and
give acquittance for  any and  all moneys  and claims  for moneys  due and  to
become  due under or arising out of said  insurances, to endorse any checks or
other instruments  or orders in connection therewith and to file any claims or
to take any action or institute any proceedings which the Assignee may deem to
be  necessary  or advisable  in  the  premises;  provided, however,  that  the
Assignee  shall not  take any  action pursuant  to the  power granted  by this
paragraph unless  an Event of  Default under  the Credit Agreement  shall have
occurred and be  continuing.  Such appointment of the  Assignee as attorney is
irrevocable and coupled with an interest. 

      The Assignor hereby  covenants and agrees to procure that notice of this
Assignment, in  the  form of  Annex  I hereto,  shall  be  duly given  to  all
underwriters  and  that where  the  consent  of  any underwriter  is  required
pursuant  to any  of  the insurances  assigned hereby,  such consent  shall be
obtained and evidence thereof shall  be given to the Assignee, and  that there
shall be  duly endorsed upon all slips, cover notes, policies, certificates of
entry  or other  instruments issued  or to  be issued  in connection  with the
insurances assigned hereby such clauses as to additional named assured or loss
payees  set forth in Annex I hereto.  In all cases, unless otherwise agreed in
writing by  the Assignee,  such slips, cover  notes, notices,  certificates of
entry or other instruments shall show the Assignee and the Banks as additional
named assured and  shall provide that  there will be  no recourse against  the
Assignee for payment of premiums, calls or assessments.

      The powers  and authority to the  Assignee herein have been  given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees  that at any  time and from  time to time, upon  the
written, reasonable  request of the  Assignee, the Assignor will  promptly and
duly execute and deliver any and all such further instruments and documents as
the Assignee may  reasonably require in  obtaining the full  benefits of  this
Assignment and of the rights and powers herein granted.

      The Assignor hereby warrants and represents  that it has not assigned or
pledged, and hereby covenants that,  without the prior written consent thereof
of the  Assignee, so long  as this  instrument of assignment  shall remain  in
effect, it will not assign or pledge the whole or any part of the right, title
and interest hereby assigned to anyone other than the Assignee, its successors
or assigns, and it  will not take  or omit to take  any action, the taking  or
omission  of  which might  result  in  an  alteration  or impairment  of  said
insurances  or this  Assignment,  or of  any  of the  rights  created by  said
insurances or this Assignment.

      All notices or other communications which are required to be made to the
Assignee hereunder shall be made by airmail postage prepaid letter, telefax or
by telex, confirmed by letter to:

                  Wilmington Trust Company
                  Rodney Square North
                  Wilmington, Delaware  19890
                  Attn:  Corporate Trust Division
                  Fax No.:  (302) 651-8882

                  With copies to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888

                  Jennifer L. Janss, Esq.
                  Richard Layton & Finger
                  P.O. Box 551 
                  Wilmington, Delaware  19899

or  at such other  address as any  such party  may designate by  notice to the
others.

      Any payments  made pursuant to  the terms hereof  shall be made  to such
account  as  may,  from  time  to time,  be  designated  by  the  Assignee for
distribution in accordance with the Vessel Trust Indenture, the Mortgages, the
Credit Agreement and the other Credit Documents.

      THIS  ASSIGNMENT SHALL BE GOVERNED BY THE  INTERNAL LAWS OF THE STATE OF
NEW YORK, WITHOUT  REFERENCE TO PRINCIPLES OF CONFLICTS OF  LAW.  THE ASSIGNOR
HEREBY IRREVOCABLY  WAIVES  ALL RIGHTS  TO  A TRIAL  BY  JURY IN  ANY  ACTION,
PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO  THIS ASSIGNMENT, THE
OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

      None of  the terms  and conditions  of this  Assignment may be  changed,
waived, modified  or varied in  any manner  whatsoever unless in  writing duly
signed  by  the Assignor  and the  Assignee (with  the  consent of  either the
Required Banks (as defined in the Credit Agreement) or, to the extent required
by Section 12.12 of the Credit Agreement, all of the Banks).

      In the  event that the  Insurance Collateral  or any portion  thereof is
sold  in connection  with  a sale  permitted  by Section  8.02  of the  Credit
Agreement or  is otherwise released at the direction of the Required Banks (or
all  the Banks,  to  the  extent  required  by Section  12.12  of  the  Credit
Agreement),  the Assignee,  at the request  and expense of  the Assignor, will
duly assign, transfer and  deliver to the Assignor (without recourse and with-
out  any representation  or warranty)  such of  the Insurance  Collateral (and
releases therefor)  as is then being (or has been)  so sold or released and as
may be in the possession of the Assignee and has not theretofore been released
pursuant to  this Assignment.    At any  time the  Assignor  desires that  the
Insurance  Collateral or  a portion  thereof be  released as provided  in this
paragraph, the Assignor shall deliver to  the Assignee a certificate signed by
an Authorized Officer  (as defined in the  Credit Agreement) stating that  the
release of the  Insurance Collateral or portion thereof  is permitted pursuant
to this paragraph.

      The  Assignor  hereby  authorizes  the  Assignee  to  execute  and  file
Financing  Statements  (Form  UCC-1)  and amendments  thereto  as  provided in
Article 9 of the Uniform Commercial Code.

      IN WITNESS WHEREOF, the  Assignor has caused this Assignment to  be duly
executed the 30th day of April, 1996.


                                    READING & BATES DRILLING CO.


                                    By: ________________________
                                        Title:



                                                                ANNEX I       
                                                                  to          
                                                      Assignment of Insurances


                             NOTICE OF ASSIGNMENT


      Reading &  Bates Drilling  Co. (the  "Owner"), the owner  of the  United
States flag offshore drilling  rig Jack Bates (the "Rig"), HEREBY GIVES NOTICE
that  by a Collateral  Assignment of Insurance  dated April 30,  1996 and made
between the  Owner and Wilmington  Trust Company, as Trustee  (the "Assignee")
for itself and certain other Banks (the "Assignee"), the Owner assigned to the
Assignee all of the Owner's right, title and interest in and to all insurances
and the benefit of all insurances now or hereafter taken out in respect of the
Rig.  This  Notice of Assignment and the Loss  Payable Clauses attached hereto
are to be indorsed on  all policies and certificates of entry  evidencing such
insurance.


                        READING & BATES DRILLING CO.

                        By                        
                           Title:





                             LOSS PAYABLE CLAUSES

                              Hull and War Risks


      Loss, if  any, payable to  Wilmington Trust Company, as  Trustee for the
Banks,  for distribution by it  to said Banks and to  Reading & Bates Drilling
Co., Owner, as their respective  interests may appear, or order,  except that,
unless Underwriters have  been otherwise instructed by notice  in writing from
the  Trustee, in  the case  of any  loss involving  any damage  to the  Rig or
liability of  the  Rig, the  Underwriters  may pay  directly for  the  repair,
salvage, liability or other charges involved or, if the Owner of the Rig shall
have  repaired  the  damage and  paid  the  cost  thereof, or  discharged  the
liability or paid the salvage or other charges, then the  Underwriters may pay
the Owner as reimbursement to the extent the Owner has paid the covered loss.

      In the event of an actual or constructive total loss or a compromised or
arranged total  loss or requisition  of title, all insurance  payment therefor
shall be paid to the  Trustee, for distribution by  it in accordance with  the
terms of the first preferred United States mortgage relating to the Rig.




                           PROTECTION AND INDEMNITY

      Loss, if any,  payable to Wilmington Trust  Company, as Trustee  for the
Banks for distribution by it to the Banks and to Reading & Bates Drilling Co.,
Owner, as their respective interests may appear, or order, except that, unless
and until  Underwriters have  been otherwise instructed  by notice  in writing
from the Trustee,  any loss may  be paid directly  to the  person to whom  the
liability covered by this insurance has been  incurred, or to the Owner of the
Rig to  reimburse it  for  any loss,  damage or  expenses incurred  by it  and
covered by this  insurance, provided that in respect of any claim in excess of
$1,000,000,  the  Underwriters shall  have  first received  evidence  that the
liability insured against has been discharged.


                                                                Exhibit 10.96 


                      COLLATERAL ASSIGNMENT OF INSURANCE


      READING &  BATES EXPLORATION  CO., an Oklahoma  corporation (hereinafter
called the  "Assignor"), the  owner of the  United States  registered offshore
drilling  rig D.R. STEWART  (the "Rig"), in  consideration of  One Dollar ($1)
lawful  money of  the United  States of  America and  other good  and valuable
consideration, the receipt and  sufficiency of which are  hereby acknowledged,
has sold,  assigned, transferred, set  over, and granted a  security interest,
and  by this  instrument does  sell, assign,  transfer, set  over and  grant a
security  interest  unto Wilmington  Trust  Company,  not  in  its  individual
capacity but as Trustee for the  Banks (as that term is defined in  the Credit
Agreement, as defined below) (hereinafter  called the "Assignee") and unto the
Assignee's successors  and assigns, to it  and its successors  and assigns own
proper use  and benefit, and  as collateral security  for the full  and prompt
payment  when  due  (whether  at  the  stated  maturity,  by  acceleration  or
otherwise) of all obligations and liabilities of the Assignor, now existing or
hereafter incurred, under,  arising out of  or in connection  with any  Credit
Document (as that term is  defined in the Credit Agreement, as  defined below)
to which it is a party and the due performance and compliance by  the Assignor
with the terms of each such Credit Document, all right, title and  interest of
the  Assignor  under,  in  and  to  the   following  (all  of  the  following,
collectively,  the "Insurance  Collateral"):   (i) all  insurances (including,
without limitation, all certificates of  entry in protection and indemnity and
war risks  associations or clubs) in  respect of the  Rig, whether heretofore,
now  or hereafter effected, and all renewals  of or replacements for the same,
(ii) except as hereinafter provided, all  claims, returns of premium and other
moneys and claims for moneys due and to become due under or in respect of said
insurances, (iii) all other rights of the Assignor under or in respect of said
insurances and (iv)  any proceeds of any  of the foregoing.   It is  expressly
agreed  that anything herein  contained to  the contrary  notwithstanding, the
Assignor  shall remain  liable under  said insurances  to perform  all of  the
obligations assumed by it thereunder and the Assignee shall have no obligation
or liability (including, without limitation,  any obligation or liability with
respect  to  the  payment  of  premiums,  calls  or  assessments)  under  said
insurances by  reason of or arising  out of this instrument  of assignment nor
shall  the  Assignee be  required or  obligated in  any  manner to  perform or
fulfill any obligations  of the Assignor under or pursuant  to said insurances
or to make any payment or to make  any inquiry as to the nature or sufficiency
of any payment received by it or to  present or file any claim, or to take any
other action to  collect or enforce  the payment of any  amounts which or  may
have been assigned to it or to which  it may be entitled hereunder at any time
or times.

      This Assignment  is made pursuant  to the Credit Agreement,  dated April
30, 1996 (as  the same may be  amended, modified or supplemented  from time to
time,  the "Credit  Agreement"), by  and  among Reading  & Bates  Corporation,
Reading  & Bates Drilling Co., the Banks  (as defined therein) and Christiania
Bank og Kreditkasse, New York Branch, as Agent.

      The Assignor  hereby constitutes  the Assignee  and  its successors  and
assigns, the Assignor's true and lawful attorney, with full power (in the name
of the Assignor or otherwise) to  ask, require, demand, receive, compound  and
give acquittance for  any and  all moneys  and claims  for moneys  due and  to
become  due under or arising out of said  insurances, to endorse any checks or
other instruments  or orders in connection therewith and to file any claims or
to take any action or institute any proceedings which the Assignee may deem to
be  necessary  or advisable  in  the  premises;  provided, however,  that  the
Assignee  shall not  take any  action pursuant  to the  power granted  by this
paragraph unless  an Event of  Default under  the Credit Agreement  shall have
occurred and be  continuing.  Such appointment of the  Assignee as attorney is
irrevocable and coupled with an interest. 

      The Assignor hereby  covenants and agrees to procure that notice of this
Assignment, in  the  form of  Annex  I hereto,  shall  be  duly given  to  all
underwriters  and  that where  the  consent  of  any underwriter  is  required
pursuant  to any  of  the insurances  assigned hereby,  such consent  shall be
obtained and evidence thereof shall  be given to the Assignee, and  that there
shall be  duly endorsed upon all slips, cover notes, policies, certificates of
entry  or other  instruments issued  or to  be issued  in connection  with the
insurances assigned hereby such clauses as to additional named assured or loss
payees  set forth in Annex I hereto.  In all cases, unless otherwise agreed in
writing by  the Assignee,  such slips, cover  notes, notices,  certificates of
entry or other instruments shall show the Assignee and the Banks as additional
named assured and  shall provide that  there will be  no recourse against  the
Assignee for payment of premiums, calls or assessments.

      The powers  and authority to the  Assignee herein have been  given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees  that at any  time and from  time to time, upon  the
written, reasonable  request of the  Assignee, the Assignor will  promptly and
duly execute and deliver any and all such further instruments and documents as
the Assignee may  reasonably require in  obtaining the full  benefits of  this
Assignment and of the rights and powers herein granted.

      The Assignor hereby warrants and represents  that it has not assigned or
pledged, and hereby covenants that,  without the prior written consent thereof
of the  Assignee, so long  as this  instrument of assignment  shall remain  in
effect, it will not assign or pledge the whole or any part of the right, title
and interest hereby assigned to anyone other than the Assignee, its successors
or assigns, and it  will not take  or omit to take  any action, the taking  or
omission  of  which might  result  in  an  alteration  or impairment  of  said
insurances  or this  Assignment,  or of  any  of the  rights  created by  said
insurances or this Assignment.

      All notices or other communications which are required to be made to the
Assignee hereunder shall be made by airmail postage prepaid letter, telefax or
by telex, confirmed by letter to:

                  Wilmington Trust Company
                  Rodney Square North
                  Wilmington, Delaware  19890
                  Attn:  Corporate Trust Division
                  Fax No.:  (302) 651-8882

                  With copies to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888

                  Jennifer L. Janss, Esq.
                  Richard Layton & Finger
                  P.O. Box 551 
                  Wilmington, Delaware  19899

or  at such other  address as any  such party  may designate by  notice to the
others.

      Any payments  made pursuant to  the terms hereof  shall be made  to such
account  as  may,  from  time  to time,  be  designated  by  the  Assignee for
distribution in accordance with the Vessel Trust Indenture, the Mortgages, the
Credit Agreement and the other Credit Documents.

      THIS  ASSIGNMENT SHALL BE GOVERNED BY THE  INTERNAL LAWS OF THE STATE OF
NEW YORK, WITHOUT  REFERENCE TO PRINCIPLES OF CONFLICTS OF  LAW.  THE ASSIGNOR
HEREBY IRREVOCABLY  WAIVES  ALL RIGHTS  TO  A TRIAL  BY  JURY IN  ANY  ACTION,
PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO  THIS ASSIGNMENT, THE
OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

      None of  the terms  and conditions  of this  Assignment may be  changed,
waived, modified  or varied in  any manner  whatsoever unless in  writing duly
signed  by  the Assignor  and the  Assignee (with  the  consent of  either the
Required Banks (as defined in the Credit Agreement) or, to the extent required
by Section 12.12 of the Credit Agreement, all of the Banks).

      In the  event that the  Insurance Collateral  or any portion  thereof is
sold  in connection  with  a sale  permitted  by Section  8.02  of the  Credit
Agreement or  is otherwise released at the direction of the Required Banks (or
all  the Banks,  to  the  extent  required  by Section  12.12  of  the  Credit
Agreement),  the Assignee,  at the request  and expense of  the Assignor, will
duly assign, transfer and  deliver to the Assignor (without recourse and with-
out  any representation  or warranty)  such of  the Insurance  Collateral (and
releases therefor)  as is then being (or has been)  so sold or released and as
may be in the possession of the Assignee and has not theretofore been released
pursuant to  this Assignment.    At any  time the  Assignor  desires that  the
Insurance  Collateral or  a portion  thereof be  released as provided  in this
paragraph, the Assignor shall deliver to  the Assignee a certificate signed by
an Authorized Officer  (as defined in the  Credit Agreement) stating that  the
release of the  Insurance Collateral or portion thereof  is permitted pursuant
to this paragraph.

      The  Assignor  hereby  authorizes  the  Assignee  to  execute  and  file
Financing  Statements  (Form  UCC-1)  and amendments  thereto  as  provided in
Article 9 of the Uniform Commercial Code.



      IN WITNESS WHEREOF, the  Assignor has caused this Assignment to  be duly
executed the 30th day of April, 1996.


                                    READING & BATES EXPLORATION CO.


                                    By: ________________________
                                        Title:



                                                                ANNEX I       
                                                                  to          
                                                      Assignment of Insurances


                             NOTICE OF ASSIGNMENT


      Reading & Bates Exploration Co.  (the "Owner"), the owner of  the United
States  flag offshore  drilling rig  D.R.  Stewart (the  "Rig"), HEREBY  GIVES
NOTICE that by a Collateral  Assignment of Insurance dated April 30,  1996 and
made  between  the  Owner  and  Wilmington  Trust  Company,  as  Trustee  (the
"Assignee") for  itself and  certain other Banks  (the "Assignee"),  the Owner
assigned to  the Assignee all of the Owner's  right, title and interest in and
to all insurances and the benefit of all insurances now or hereafter taken out
in respect of the Rig.  This Notice of Assignment and the Loss Payable Clauses
attached hereto are to be  indorsed on all policies and certificates  of entry
evidencing such insurance.


                        READING & BATES EXPLORATION CO.

                        By________________________
                           Title:




                             LOSS PAYABLE CLAUSES

                              Hull and War Risks


      Loss, if  any, payable to  Wilmington Trust Company, as  Trustee for the
Banks, for distribution by it to said Banks and to Reading & Bates Exploration
Co., Owner, as their respective  interests may appear, or order,  except that,
unless Underwriters have  been otherwise instructed by notice  in writing from
the  Trustee, in  the case  of any  loss involving  any damage  to the  Rig or
liability of  the  Rig, the  Underwriters  may pay  directly for  the  repair,
salvage, liability or other charges involved or, if the Owner of the Rig shall
have  repaired  the  damage and  paid  the  cost  thereof, or  discharged  the
liability or paid the salvage or other charges, then the  Underwriters may pay
the Owner as reimbursement to the extent the Owner has paid the covered loss.

      In the event of an actual or constructive total loss or a compromised or
arranged total  loss or requisition  of title, all insurance  payment therefor
shall be paid to the  Trustee, for distribution by  it in accordance with  the
terms of the first preferred United States mortgage relating to the Rig.




                           PROTECTION AND INDEMNITY

      Loss, if any,  payable to Wilmington Trust  Company, as Trustee  for the
Banks for  distribution by it to the Banks and  to Reading & Bates Exploration
Co., Owner, as their  respective interests may appear, or order,  except that,
unless  and until  Underwriters have  been otherwise  instructed by  notice in
writing from the Trustee, any loss may be paid directly to  the person to whom
the liability covered by this insurance has  been incurred, or to the Owner of
the  Rig to reimburse it  for any loss, damage or  expenses incurred by it and
covered by this  insurance, provided that in respect of any claim in excess of
$1,000,000,  the  Underwriters shall  have  first received  evidence  that the
liability insured against has been discharged.



                                                                Exhibit 10.97 


                      COLLATERAL ASSIGNMENT OF INSURANCE


      READING &  BATES EXPLORATION  CO., an Oklahoma  corporation (hereinafter
called the  "Assignor"), the  owner of the  United States  registered offshore
drilling rig W.D. KENT (the "Rig"), in consideration of One Dollar ($1) lawful
money  of   the  United  States  of  America   and  other  good  and  valuable
consideration, the receipt and  sufficiency of which are  hereby acknowledged,
has sold,  assigned, transferred, set  over, and granted a  security interest,
and  by this  instrument does  sell, assign,  transfer, set  over and  grant a
security  interest  unto Wilmington  Trust  Company,  not  in  its  individual
capacity but as Trustee for the  Banks (as that term is defined in  the Credit
Agreement, as defined below) (hereinafter  called the "Assignee") and unto the
Assignee's successors  and assigns, to it  and its successors  and assigns own
proper use  and benefit, and  as collateral security  for the full  and prompt
payment  when  due  (whether  at  the  stated  maturity,  by  acceleration  or
otherwise) of all obligations and liabilities of the Assignor, now existing or
hereafter incurred, under,  arising out of  or in connection  with any  Credit
Document (as that term is  defined in the Credit Agreement, as  defined below)
to which it is a party and the due performance and compliance by  the Assignor
with the terms of each such Credit Document, all right, title and  interest of
the  Assignor  under,  in  and  to  the   following  (all  of  the  following,
collectively,  the "Insurance  Collateral"):   (i) all  insurances (including,
without limitation, all certificates of  entry in protection and indemnity and
war risks  associations or clubs) in  respect of the  Rig, whether heretofore,
now  or hereafter effected, and all renewals  of or replacements for the same,
(ii) except as hereinafter provided, all  claims, returns of premium and other
moneys and claims for moneys due and to become due under or in respect of said
insurances, (iii) all other rights of the Assignor under or in respect of said
insurances and (iv)  any proceeds of any  of the foregoing.   It is  expressly
agreed  that anything herein  contained to  the contrary  notwithstanding, the
Assignor  shall remain  liable under  said insurances  to perform  all of  the
obligations assumed by it thereunder and the Assignee shall have no obligation
or liability (including, without limitation,  any obligation or liability with
respect  to  the  payment  of  premiums,  calls  or  assessments)  under  said
insurances by  reason of or arising  out of this instrument  of assignment nor
shall  the  Assignee be  required or  obligated in  any  manner to  perform or
fulfill any obligations  of the Assignor under or pursuant  to said insurances
or to make any payment or to make  any inquiry as to the nature or sufficiency
of any payment received by it or to  present or file any claim, or to take any
other action to  collect or enforce  the payment of any  amounts which or  may
have been assigned to it or to which  it may be entitled hereunder at any time
or times.

      This Assignment  is made pursuant  to the Credit Agreement,  dated April
30, 1996 (as  the same may be  amended, modified or supplemented  from time to
time,  the "Credit  Agreement"), by  and  among Reading  & Bates  Corporation,
Reading  & Bates Drilling Co., the Banks  (as defined therein) and Christiania
Bank og Kreditkasse, New York Branch, as Agent.

      The Assignor  hereby constitutes  the Assignee  and  its successors  and
assigns, the Assignor's true and lawful attorney, with full power (in the name
of the Assignor or otherwise) to  ask, require, demand, receive, compound  and
give acquittance for  any and  all moneys  and claims  for moneys  due and  to
become  due under or arising out of said  insurances, to endorse any checks or
other instruments  or orders in connection therewith and to file any claims or
to take any action or institute any proceedings which the Assignee may deem to
be  necessary  or advisable  in  the  premises;  provided, however,  that  the
Assignee  shall not  take any  action pursuant  to the  power granted  by this
paragraph unless  an Event of  Default under  the Credit Agreement  shall have
occurred and be  continuing.  Such appointment of the  Assignee as attorney is
irrevocable and coupled with an interest. 

      The Assignor hereby  covenants and agrees to procure that notice of this
Assignment, in  the  form of  Annex  I hereto,  shall  be  duly given  to  all
underwriters  and  that where  the  consent  of  any underwriter  is  required
pursuant  to any  of  the insurances  assigned hereby,  such consent  shall be
obtained and evidence thereof shall  be given to the Assignee, and  that there
shall be  duly endorsed upon all slips, cover notes, policies, certificates of
entry  or other  instruments issued  or to  be issued  in connection  with the
insurances assigned hereby such clauses as to additional named assured or loss
payees  set forth in Annex I hereto.  In all cases, unless otherwise agreed in
writing by  the Assignee,  such slips, cover  notes, notices,  certificates of
entry or other instruments shall show the Assignee and the Banks as additional
named assured and  shall provide that  there will be  no recourse against  the
Assignee for payment of premiums, calls or assessments.

      The powers  and authority to the  Assignee herein have been  given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees  that at any  time and from  time to time, upon  the
written, reasonable  request of the  Assignee, the Assignor will  promptly and
duly execute and deliver any and all such further instruments and documents as
the Assignee may  reasonably require in  obtaining the full  benefits of  this
Assignment and of the rights and powers herein granted.

      The Assignor hereby warrants and represents  that it has not assigned or
pledged, and hereby covenants that,  without the prior written consent thereof
of the  Assignee, so long  as this  instrument of assignment  shall remain  in
effect, it will not assign or pledge the whole or any part of the right, title
and interest hereby assigned to anyone other than the Assignee, its successors
or assigns, and it  will not take  or omit to take  any action, the taking  or
omission  of  which might  result  in  an  alteration  or impairment  of  said
insurances  or this  Assignment,  or of  any  of the  rights  created by  said
insurances or this Assignment.

      All notices or other communications which are required to be made to the
Assignee hereunder shall be made by airmail postage prepaid letter, telefax or
by telex, confirmed by letter to:

                  Wilmington Trust Company
                  Rodney Square North
                  Wilmington, Delaware  19890
                  Attn:  Corporate Trust Division
                  Fax No.:  (302) 651-8882

                  With copies to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888

                  Jennifer L. Janss, Esq.
                  Richard Layton & Finger
                  P.O. Box 551 
                  Wilmington, Delaware  19899

or  at such other  address as any  such party  may designate by  notice to the
others.

      Any payments  made pursuant to  the terms hereof  shall be made  to such
account  as  may,  from  time  to time,  be  designated  by  the  Assignee for
distribution in accordance with the Vessel Trust Indenture, the Mortgages, the
Credit Agreement and the other Credit Documents.

      THIS  ASSIGNMENT SHALL BE GOVERNED BY THE  INTERNAL LAWS OF THE STATE OF
NEW YORK, WITHOUT  REFERENCE TO PRINCIPLES OF CONFLICTS OF  LAW.  THE ASSIGNOR
HEREBY IRREVOCABLY  WAIVES  ALL RIGHTS  TO  A TRIAL  BY  JURY IN  ANY  ACTION,
PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO  THIS ASSIGNMENT, THE
OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

      None of  the terms  and conditions  of this  Assignment may be  changed,
waived, modified  or varied in  any manner  whatsoever unless in  writing duly
signed  by  the Assignor  and the  Assignee (with  the  consent of  either the
Required Banks (as defined in the Credit Agreement) or, to the extent required
by Section 12.12 of the Credit Agreement, all of the Banks).

      In the  event that the  Insurance Collateral  or any portion  thereof is
sold  in connection  with  a sale  permitted  by Section  8.02  of the  Credit
Agreement or  is otherwise released at the direction of the Required Banks (or
all  the Banks,  to  the  extent  required  by Section  12.12  of  the  Credit
Agreement),  the Assignee,  at the request  and expense of  the Assignor, will
duly assign, transfer and  deliver to the Assignor (without recourse and with-
out  any representation  or warranty)  such of  the Insurance  Collateral (and
releases therefor)  as is then being (or has been)  so sold or released and as
may be in the possession of the Assignee and has not theretofore been released
pursuant to  this Assignment.    At any  time the  Assignor  desires that  the
Insurance  Collateral or  a portion  thereof be  released as provided  in this
paragraph, the Assignor shall deliver to  the Assignee a certificate signed by
an Authorized Officer  (as defined in the  Credit Agreement) stating that  the
release of the  Insurance Collateral or portion thereof  is permitted pursuant
to this paragraph.

      The  Assignor  hereby  authorizes  the  Assignee  to  execute  and  file
Financing  Statements  (Form  UCC-1)  and amendments  thereto  as  provided in
Article 9 of the Uniform Commercial Code.



      IN WITNESS WHEREOF, the  Assignor has caused this Assignment to  be duly
executed the 30th day of April, 1996.


                                    READING & BATES EXPLORATION CO.


                                    By: ________________________
                                        Title:



                                                                ANNEX I       
                                                                  to          
                                                      Assignment of Insurances



                             NOTICE OF ASSIGNMENT


      Reading & Bates Exploration Co.  (the "Owner"), the owner of  the United
States  flag offshore drilling rig W.D. Kent  (the "Rig"), HEREBY GIVES NOTICE
that  by a Collateral  Assignment of Insurance  dated April 30,  1996 and made
between the  Owner and Wilmington  Trust Company, as Trustee  (the "Assignee")
for itself and certain other Banks (the "Assignee"), the Owner assigned to the
Assignee all of the Owner's right, title and interest in and to all insurances
and the benefit of all insurances now or hereafter taken out in respect of the
Rig.  This  Notice of Assignment and the Loss  Payable Clauses attached hereto
are to be indorsed on  all policies and certificates of entry  evidencing such
insurance.


                        READING & BATES EXPLORATION CO.

                        By____________________
                           Title:




                             LOSS PAYABLE CLAUSES

                              Hull and War Risks


      Loss, if  any, payable to  Wilmington Trust Company, as  Trustee for the
Banks, for distribution by it to said Banks and to Reading & Bates Exploration
Co., Owner, as their respective  interests may appear, or order,  except that,
unless Underwriters have  been otherwise instructed by notice  in writing from
the  Trustee, in  the case  of any  loss involving  any damage  to the  Rig or
liability of  the  Rig, the  Underwriters  may pay  directly for  the  repair,
salvage, liability or other charges involved or, if the Owner of the Rig shall
have  repaired  the  damage and  paid  the  cost  thereof, or  discharged  the
liability or paid the salvage or other charges, then the  Underwriters may pay
the Owner as reimbursement to the extent the Owner has paid the covered loss.

      In the event of an actual or constructive total loss or a compromised or
arranged total  loss or requisition  of title, all insurance  payment therefor
shall be paid to the  Trustee, for distribution by  it in accordance with  the
terms of the first preferred United States mortgage relating to the Rig.




                           PROTECTION AND INDEMNITY

      Loss, if any,  payable to Wilmington Trust  Company, as Trustee  for the
Banks for  distribution by it to the Banks and  to Reading & Bates Exploration
Co., Owner, as their  respective interests may appear, or order,  except that,
unless  and until  Underwriters have  been otherwise  instructed by  notice in
writing from the Trustee, any loss may be paid directly to  the person to whom
the liability covered by this insurance has  been incurred, or to the Owner of
the  Rig to reimburse it  for any loss, damage or  expenses incurred by it and
covered by this  insurance, provided that in respect of any claim in excess of
$1,000,000,  the  Underwriters shall  have  first received  evidence  that the
liability insured against has been discharged.




                                                                Exhibit 10.98 


                      COLLATERAL ASSIGNMENT OF INSURANCE


      READING &  BATES  BORNEO DRILLING  CO.,  LTD., an  Oklahoma  corporation
(hereinafter called the  "Assignor"), the owner  of the Panamanian  registered
offshore  drilling rig  CHARLEY GRAVES  (the "Rig"),  in consideration  of One
Dollar  ($1) lawful money of  the United States of  America and other good and
valuable  consideration, the  receipt  and  sufficiency  of which  are  hereby
acknowledged,  has sold,  assigned,  transferred,  set  over,  and  granted  a
security interest, and  by this  instrument does sell,  assign, transfer,  set
over and grant a security  interest unto Christiania Bank og  Kreditkasse, New
York Branch,  not in its individual  capacity but as  Agent for the  Banks (as
that term is  defined in the Credit Agreement, as  defined below) (hereinafter
called the "Assignee") and unto  the Assignee's successors and assigns, to  it
and its successors  and assigns own proper use and  benefit, and as collateral
security  for the  full and  prompt payment  when due  (whether at  the stated
maturity,  by acceleration or otherwise) of all obligations and liabilities of
the Assignor, now existing or hereafter  incurred, under, arising out of or in
connection  with any Credit  Document (as that  term is defined  in the Credit
Agreement,  as defined below) to  which it is a  party and the due performance
and compliance  by the Assignor with  the terms of each  such Credit Document,
all right, title and interest  of the Assignor under, in and to  the following
(all of the  following, collectively,  the "Insurance Collateral"):   (i)  all
insurances  (including,  without  limitation,  all certificates  of  entry  in
protection  and indemnity and  war risks associations or  clubs) in respect of
the Rig, whether heretofore, now or hereafter effected, and all renewals of or
replacements  for the same, (ii)  except as hereinafter  provided, all claims,
returns of premium  and other moneys and  claims for moneys due  and to become
due  under or  in respect of  said insurances,  (iii) all other  rights of the
Assignor under or in respect of  said insurances and (iv) any proceeds of  any
of the  foregoing.  It is  expressly agreed that anything  herein contained to
the  contrary notwithstanding,  the Assignor  shall remain  liable  under said
insurances to perform all of the  obligations assumed by it thereunder and the
Assignee shall have no obligation or liability (including, without limitation,
any obligation or liability with respect to the payment of  premiums, calls or
assessments) under  said  insurances by  reason  of  or arising  out  of  this
instrument of assignment  nor shall the  Assignee be required or  obligated in
any  manner to  perform or fulfill  any obligations  of the  Assignor under or
pursuant to  said insurances or to make any payment  or to make any inquiry as
to the nature or sufficiency  of any payment received  by it or to present  or
file any claim, or to take any other action to collect or enforce  the payment
of any  amounts which or may  have been assigned to  it or to which  it may be
entitled hereunder at any time or times.

      This  Assignment is made pursuant  to the Credit  Agreement, dated April
30,  1996 (as the same  may be amended, modified  or supplemented from time to
time,  the  "Credit Agreement"),  by and  among  Reading &  Bates Corporation,
Reading & Bates Drilling Co.,  the Banks (as defined therein)  and Christiania
Bank og Kreditkasse, New York Branch, as Agent.

      The  Assignor hereby  constitutes  the Assignee  and its  successors and
assigns, the Assignor's true and lawful attorney, with full power (in the name
of the Assignor or  otherwise) to ask, require, demand,  receive, compound and
give  acquittance for  any and  all moneys and  claims for  moneys due  and to
become due  under or arising out of said  insurances, to endorse any checks or
other instruments or orders in connection therewith and to file  any claims or
to take any action or institute any proceedings which the Assignee may deem to
be  necessary  or  advisable in  the  premises;  provided,  however, that  the
Assignee  shall not  take any  action pursuant  to the  power granted  by this
paragraph unless an  Event of  Default under the  Credit Agreement shall  have
occurred and be continuing.   Such appointment of the Assignee as  attorney is
irrevocable and coupled with an interest. 

      The  Assignor hereby covenants and agrees to procure that notice of this
Assignment, in  the  form  of Annex  I  hereto, shall  be  duly given  to  all
underwriters  and  that  where the  consent  of  any  underwriter is  required
pursuant  to  any of  the insurances  assigned hereby,  such consent  shall be
obtained  and evidence thereof shall be given  to the Assignee, and that there
shall be duly endorsed upon all slips, cover notes, policies, certificates  of
entry  or other  instruments issued  or to  be issued  in connection  with the
insurances assigned hereby such clauses as to additional named assured or loss
payees  set forth in Annex I hereto.  In all cases, unless otherwise agreed in
writing by the  Assignee, such  slips, cover notes,  notices, certificates  of
entry or other instruments shall show the Assignee and the Banks as additional
named assured  and shall provide  that there will  be no recourse  against the
Assignee for payment of premiums, calls or assessments.

      The powers  and authority to the  Assignee herein have been  given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees  that at any time  and from time  to time, upon  the
written,  reasonable request of the  Assignee, the Assignor  will promptly and
duly execute and deliver any and all such further instruments and documents as
the  Assignee may reasonably  require in obtaining  the full  benefits of this
Assignment and of the rights and powers herein granted.

      The Assignor hereby  warrants and represents that it has not assigned or
pledged,  and hereby covenants that, without the prior written consent thereof
of  the Assignee,  so long as  this instrument  of assignment  shall remain in
effect, it will not assign or pledge the whole or any part of the right, title
and interest hereby assigned to anyone other than the Assignee, its successors
or assigns, and  it will not take  or omit to take  any action, the taking  or
omission of  which  might  result  in  an alteration  or  impairment  of  said
insurances or  this  Assignment, or  of  any of  the  rights created  by  said
insurances or this Assignment.

      All notices or other communications which are required to be made to the
Assignee hereunder shall be made by airmail postage prepaid letter, telefax or
by telex, confirmed by letter to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888


or at  such other address  as any such  party may designate  by notice  to the
others.

      Any  payments made pursuant  to the terms  hereof shall be  made to such
account  as may,  from  time  to  time,  be designated  by  the  Assignee  for
distribution  in accordance with the  Mortgages, the Credit  Agreement and the
other Credit Documents.

      THIS ASSIGNMENT SHALL  BE GOVERNED BY THE INTERNAL LAWS  OF THE STATE OF
NEW YORK, WITHOUT REFERENCE TO  PRINCIPLES OF CONFLICTS OF LAW.   THE ASSIGNOR
HEREBY  IRREVOCABLY  WAIVES ALL  RIGHTS  TO A  TRIAL  BY JURY  IN  ANY ACTION,
PROCEEDING OR COUNTERCLAIM ARISING OUT OF  OR RELATING TO THIS ASSIGNMENT, THE
OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

      None  of the  terms and  conditions of this  Assignment may  be changed,
waived, modified  or varied  in any manner  whatsoever unless in  writing duly
signed by  the Assignor  and  the Assignee  (with the  consent  of either  the
Required Banks (as defined in the Credit Agreement) or, to the extent required
by Section 12.12 of the Credit Agreement, all of the Banks).

      In  the event  that the Insurance  Collateral or any  portion thereof is
sold in  connection  with a  sale  permitted by  Section  8.02 of  the  Credit
Agreement or is otherwise released at the direction of the  Required Banks (or
all  the  Banks,  to the  extent  required  by  Section  12.12 of  the  Credit
Agreement), the Assignee,  at the request  and expense of  the Assignor,  will
duly  assign, transfer and deliver to the Assignor (without recourse and with-
out  any representation  or warranty)  such of  the Insurance  Collateral (and
releases therefor) as is then being  (or has been) so sold or released  and as
may be in the possession of the Assignee and has not theretofore been released
pursuant  to this  Assignment.   At  any time  the Assignor  desires that  the
Insurance Collateral  or a  portion thereof be  released as  provided in  this
paragraph, the  Assignor shall deliver to the Assignee a certificate signed by
an Authorized Officer (as  defined in the Credit  Agreement) stating that  the
release of the Insurance  Collateral or portion thereof is  permitted pursuant
to this paragraph.

      The  Assignor  hereby  authorizes  the  Assignee  to  execute  and  file
Financing  Statements  (Form UCC-1)  and  amendments  thereto as  provided  in
Article 9 of the Uniform Commercial Code.


      IN WITNESS WHEREOF, the  Assignor has caused this Assignment  to be duly
executed the 30th day of April, 1996.


                                    READING & BATES BORNEO DRILLING CO., LTD.


                                    By: ________________________
                                        Title:



                                                                ANNEX I       
                                                                  to          
                                                      Assignment of Insurances





                             NOTICE OF ASSIGNMENT


      Reading & Bates Borneo Drilling Co. Ltd. (the "Owner"), the owner of the
Panamanian flag offshore drilling rig Charley Graves (the "Rig"), HEREBY GIVES
NOTICE that by  a Collateral Assignment of Insurance dated  April 30, 1996 and
made  between the Owner and Christiania  Bank og Kreditkasse, New York Branch,
as Agent (the "Assignee") for itself and certain other Banks (the "Assignee"),
the  Owner assigned  to  the Assignee  all  of the  Owner's  right, title  and
interest in  and to all  insurances and the  benefit of all insurances  now or
hereafter taken out  in respect of the Rig.  This Notice of Assignment and the
Loss Payable  Clauses attached hereto are  to be indorsed on  all policies and
certificates of entry evidencing such insurance.


                        READING & BATES BORNEO DRILLING CO., LTD.

                        By                        
                           Title:


                             LOSS PAYABLE CLAUSES

                              Hull and War Risks


      Loss,  if any,  payable to  Christiania  Bank og  Kreditkasse, New  York
Branch, as Agent for the  Banks, for distribution by  it to said Banks and  to
Reading & Bates Borneo Drilling Co. Ltd., Owner, as their respective interests
may appear,  or order,  except that, unless  Underwriters have  been otherwise
instructed by  notice  in writing  from the  Agent, in  the case  of any  loss
involving  any damage to the Rig or liability of the Rig, the Underwriters may
pay directly  for the repair, salvage, liability or other charges involved or,
if the  Owner of  the Rig shall  have repaired  the damage  and paid the  cost
thereof, or  discharged the liability  or paid  the salvage or  other charges,
then the Underwriters  may pay the  Owner as reimbursement  to the extent  the
Owner has paid the covered loss.

      In the event of an actual or constructive total loss or a compromised or
arranged total  loss or requisition  of title, all insurance  payment therefor
shall be  paid to  the Agent, for  distribution by it  in accordance  with the
terms of the first preferred Panamanian mortgage relating to the Rig.

                           PROTECTION AND INDEMNITY

      Loss,  if any,  payable to  Christiania  Bank og  Kreditkasse, New  York
Branch,  as Agent for  the Banks for  distribution by it  to the Banks  and to
Reading  &  Bates  Borneo  Drilling  Co., Ltd.,  Owner,  as  their  respective
interests may  appear, or  order, except that,  unless and  until Underwriters
have been otherwise instructed by notice in writing from the  Agenty, any loss
may be  paid directly  to the  person to whom  the liability  covered by  this
insurance has been  incurred, or to the  Owner of the Rig to  reimburse it for
any loss, damage  or expenses incurred  by it and  covered by this  insurance,
provided  that  in   respect  of  any  claim  in  excess  of  $1,000,000,  the
Underwriters shall  have first  received evidence that  the liability  insured
against has been discharged.



                                                              Exhibit 10.99

                     COLLATERAL ASSIGNMENT OF INSURANCE


      READING &  BATES  (A)  PTY. LTD.,  a  Western  Australia  corporation
(hereinafter called the "Assignor"), the owner of the Australian registered
offshore drilling  rig RON TAPPMEYER  (the "Rig"), in  consideration of One
Dollar ($1) lawful money of the United States of America and other good and
valuable consideration, the  receipt and  sufficiency of  which are  hereby
acknowledged,  has  sold, assigned,  transferred, set  over, and  granted a
security interest, and by this  instrument does sell, assign, transfer, set
over and  grant a security  interest unto Christiania  Bank og Kreditkasse,
New York Branch, not in its  individual capacity but as Agent for the Banks
(as  that  term  is defined  in  the Credit  Agreement,  as  defined below)
(hereinafter called the "Assignee") and unto the Assignee's  successors and
assigns, to it  and its successors and assigns own  proper use and benefit,
and  as collateral  security  for  the full  and  prompt  payment when  due
(whether  at the  stated maturity,  by  acceleration or  otherwise)  of all
obligations  and  liabilities of  the Assignor,  now existing  or hereafter
incurred, under, arising  out of or in connection with  any Credit Document
(as  that term  is defined in  the Credit  Agreement, as  defined below) to
which it is a party and the due performance and compliance  by the Assignor
with  the terms of each such Credit Document, all right, title and interest
of  the Assignor  under, in  and to  the following  (all of  the following,
collectively, the "Insurance Collateral"):   (i) all insurances (including,
without limitation, all  certificates of entry in  protection and indemnity
and  war  risks  associations or  clubs)  in  respect of  the  Rig, whether
heretofore, now or hereafter effected,  and all renewals of or replacements
for the same, (ii) except  as hereinafter provided, all claims,  returns of
premium and other moneys and claims for moneys due and to become  due under
or in  respect of said insurances,  (iii) all other rights  of the Assignor
under or in respect of said insurances and (iv) any proceeds of any of  the
foregoing.   It is expressly agreed  that anything herein  contained to the
contrary  notwithstanding,  the Assignor  shall  remain  liable under  said
insurances to perform all of the  obligations assumed by it thereunder  and
the Assignee  shall have  no obligation  or liability  (including,  without
limitation,  any obligation  or liability  with respect  to the  payment of
premiums,  calls or  assessments) under  said  insurances by  reason  of or
arising out  of this  instrument of  assignment nor  shall the  Assignee be
required or obligated in any  manner to perform or fulfill  any obligations
of the Assignor under or pursuant to said insurances or to make any payment
or to make  any inquiry  as to  the nature  or sufficiency  of any  payment
received by it or to present or file any claim, or to take any other action
to collect or  enforce the payment  of any amounts  which or may have  been
assigned to it  or to which  it may be  entitled hereunder  at any time  or
times.

      This Assignment is made pursuant to the Credit Agreement, dated April
30, 1996 (as the same may be amended, modified or supplemented from time to
time, the  "Credit Agreement"), by  and among Reading  & Bates Corporation,
Reading  &  Bates  Drilling  Co.,   the  Banks  (as  defined  therein)  and
Christiania Bank og Kreditkasse, New York Branch, as Agent.

      The Assignor hereby constitutes  the Assignee and its  successors and
assigns, the Assignor's  true and lawful attorney, with  full power (in the
name  of the  Assignor  or  otherwise) to  ask,  require, demand,  receive,
compound and give acquittance for any and all moneys  and claims for moneys
due and to become due under  or arising out of said insurances,  to endorse
any checks  or other instruments  or orders in connection  therewith and to
file any  claims or to take  any action or institute  any proceedings which
the  Assignee may  deem  to be  necessary  or  advisable in  the  premises;
provided, however, that the Assignee shall not take any action  pursuant to
the power  granted by this paragraph  unless an Event of  Default under the
Credit Agreement shall  have occurred and be  continuing.  Such appointment
of the Assignee as attorney is irrevocable and coupled with an interest. 

      The Assignor  hereby covenants and  agrees to procure  that notice of
this Assignment, in the form of  Annex I hereto, shall be duly given to all
underwriters  and that  where the  consent of  any underwriter  is required
pursuant to  any of the insurances  assigned hereby, such  consent shall be
obtained and evidence  thereof shall  be given  to the  Assignee, and  that
there  shall  be duly  endorsed  upon  all  slips,  cover notes,  policies,
certificates  of entry  or  other instruments  issued or  to  be issued  in
connection  with  the  insurances  assigned  hereby  such  clauses   as  to
additional named assured or  loss payees set forth  in Annex I hereto.   In
all cases, unless otherwise agreed  in writing by the Assignee, such slips,
cover notes, notices, certificates of entry or other instruments shall show
the Assignee  and the Banks as  additional named assured and  shall provide
that  there  will  be  no recourse  against  the  Assignee  for payment  of
premiums, calls or assessments.

      The powers and authority to the Assignee herein have been given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees that at any  time and from time to time, upon the
written, reasonable request of the Assignee, the Assignor will promptly and
duly execute and deliver any and all such further instruments and documents
as the Assignee may  reasonably require in obtaining  the full benefits  of
this Assignment and of the rights and powers herein granted.

      The Assignor hereby warrants and  represents that it has not assigned
or pledged,  and hereby covenants  that, without the  prior written consent
thereof of the  Assignee, so  long as this  instrument of assignment  shall
remain in effect, it will not assign or pledge the whole or any part of the
right,  title  and  interest  hereby  assigned  to anyone  other  than  the
Assignee, its successors or assigns,  and it will not take or  omit to take
any action, the taking or  omission of which might result in  an alteration
or  impairment of  said insurances  or this  Assignment, or  of any  of the
rights created by said insurances or this Assignment.

      All notices or other communications which are required to be made  to
the Assignee  hereunder shall  be made  by airmail postage  prepaid letter,
telefax or by telex, confirmed by letter to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888


or at such other address as  any such party may designate by  notice to the
others.

      Any payments made pursuant to  the terms hereof shall be made to such
account  as  may, from  time to  time,  be designated  by the  Assignee for
distribution in accordance with the Mortgages, the Credit Agreement and the
other Credit Documents.

      THIS ASSIGNMENT SHALL BE  GOVERNED BY THE INTERNAL LAWS OF  THE STATE
OF NEW  YORK, WITHOUT REFERENCE  TO PRINCIPLES  OF CONFLICTS OF  LAW.   THE
ASSIGNOR HEREBY  IRREVOCABLY WAIVES ALL RIGHTS  TO A TRIAL  BY JURY IN  ANY
ACTION,  PROCEEDING OR  COUNTERCLAIM ARISING  OUT  OF OR  RELATING  TO THIS
ASSIGNMENT,  THE OTHER  CREDIT DOCUMENTS  OR THE  TRANSACTIONS CONTEMPLATED
HEREBY OR THEREBY.

      None of the  terms and conditions of this  Assignment may be changed,
waived, modified or varied in any  manner whatsoever unless in writing duly
signed by  the Assignor and  the Assignee (with  the consent  of either the
Required  Banks  (as defined  in the  Credit Agreement)  or, to  the extent
required by Section 12.12 of the Credit Agreement, all of the Banks).

      In the event that the  Insurance Collateral or any portion thereof is
sold  in connection  with a sale  permitted by  Section 8.02  of the Credit
Agreement  or is otherwise released at the  direction of the Required Banks
(or all  the Banks, to the  extent required by Section 12.12  of the Credit
Agreement), the  Assignee, at the request and expense of the Assignor, will
duly assign,  transfer and  deliver to  the Assignor (without  recourse and
without any representation or  warranty) such of  the Insurance  Collateral
(and releases therefor) as is then being (or  has been) so sold or released
and as  may be in  the possession of the  Assignee and has  not theretofore
been released  pursuant  to this  Assignment.   At  any time  the  Assignor
desires  that the Insurance Collateral or  a portion thereof be released as
provided in  this paragraph, the Assignor  shall deliver to  the Assignee a
certificate  signed by  an Authorized  Officer  (as defined  in  the Credit
Agreement) stating that the release  of the Insurance Collateral or portion
thereof is permitted pursuant to this paragraph.

      The  Assignor  hereby  authorizes the  Assignee to  execute  and file
Financing  Statements (Form  UCC-1) and  amendments thereto as  provided in
Article 9 of the Uniform Commercial Code.


      IN WITNESS  WHEREOF, the  Assignor has  caused this Assignment  to be
duly executed the 30th day of April, 1996.


                                    READING & BATES (A) PTY. LTD.


                                    By: ________________________
                                        Title:


                                                             ANNEX I       
                                                               to          
                                                   Assignment of Insurances


                            NOTICE OF ASSIGNMENT


      Reading  & Bates  (A)  Pty.  Ltd. (the  "Owner"),  the owner  of  the
Australian flag  offshore drilling rig  Ron Tappmeyer  (the "Rig"),  HEREBY
GIVES NOTICE that  by a Collateral Assignment of  Insurance dated April 30,
1996 and made between  the Owner and Christiania  Bank og Kreditkasse,  New
York  Branch, as Agent (the "Assignee") for  itself and certain other Banks
(the "Assignee"),  the Owner assigned  to the Assignee  all of  the Owner's
right, title and interest in and  to all insurances and the benefit  of all
insurances now or hereafter  taken out in respect of the Rig.   This Notice
of Assignment  and the  Loss  Payable Clauses  attached  hereto are  to  be
indorsed  on  all  policies  and  certificates  of  entry  evidencing  such
insurance.


                        READING & BATES (A) PTY. LTD.

                        By _____________________
                           Title:



                            LOSS PAYABLE CLAUSES

                             Hull and War Risks


      Loss, if  any, payable to  Christiania Bank og  Kreditkasse, New York
Branch, as Agent for the Banks, for distribution by it to said Banks and to
Reading & Bates  (A) Pty. Ltd.,  Owner, as their  respective interests  may
appear,  or  order, except  that, unless  Underwriters have  been otherwise
instructed  by notice in  writing from the  Agent, in the case  of any loss
involving  any damage to the Rig or  liability of the Rig, the Underwriters
may  pay directly  for  the  repair, salvage,  liability  or other  charges
involved or, if  the Owner of  the Rig shall  have repaired the damage  and
paid  the cost thereof, or discharged the  liability or paid the salvage or
other charges, then the Underwriters  may pay the Owner as reimbursement to
the extent the Owner has paid the covered loss.

      In the event of an actual or constructive total loss or a compromised
or  arranged total  loss or  requisition  of title,  all  insurance payment
therefor  shall be paid to the Agent,  for distribution by it in accordance
with the terms  of the first preferred Australian  mortgage relating to the
Rig.


                          PROTECTION AND INDEMNITY

      Loss, if  any, payable to  Christiania Bank og  Kreditkasse, New York
Branch, as  Agent for the Banks for distribution by it  to the Banks and to
Reading & Bates  (A) Pty.  Ltd., Owner, as  their respective interests  may
appear,  or order,  except that,  unless and  until Underwriters  have been
otherwise  instructed by notice in writing from the Agenty, any loss may be
paid directly to the person to whom the liability covered by this insurance
has been incurred, or to the Owner of the Rig to reimburse it for any loss,
damage or expenses  incurred by it and covered  by this insurance, provided
that  in respect of  any claim  in excess  of $1,000,000,  the Underwriters
shall  have first received evidence that the liability insured against  has
been discharged.


                                                               Exhibit 10.100 


                      COLLATERAL ASSIGNMENT OF INSURANCE


      READING  &  BATES DRILLING  CO.,  an  Oklahoma corporation  (hereinafter
called the "Assignor"), the owner of the Bahamian registered offshore drilling
rig J.W. McLEAN (the "Rig"), in  consideration of One Dollar ($1) lawful money
of the United States of America and other good and valuable consideration, the
receipt  and sufficiency of which are hereby acknowledged, has sold, assigned,
transferred, set over, and granted a security interest, and by this instrument
does  sell, assign,  transfer, set  over  and grant  a security  interest unto
Christiania  Bank og  Kreditkasse,  New York  Branch,  not in  its  individual
capacity  but as Agent  for the Banks (as  that term is  defined in the Credit
Agreement,  as defined below) (hereinafter called the "Assignee") and unto the
Assignee's  successors and assigns,  to it and its  successors and assigns own
proper use  and benefit, and  as collateral security  for the full  and prompt
payment  when  due  (whether  at  the  stated  maturity,  by  acceleration  or
otherwise) of all obligations and liabilities of the Assignor, now existing or
hereafter incurred,  under, arising out  of or  in connection with  any Credit
Document (as that term is  defined in the Credit Agreement, as  defined below)
to which it is a party and the due performance and compliance by  the Assignor
with the terms of each such Credit Document, all right,  title and interest of
the  Assignor   under,  in  and  to  the  following  (all  of  the  following,
collectively,  the "Insurance  Collateral"):   (i) all  insurances (including,
without  limitation, all certificates of entry in protection and indemnity and
war  risks associations or  clubs) in respect of  the Rig, whether heretofore,
now  or hereafter effected, and all renewals  of or replacements for the same,
(ii)  except as hereinafter provided, all claims, returns of premium and other
moneys and claims for moneys due and to become due under or in respect of said
insurances, (iii) all other rights of the Assignor under or in respect of said
insurances  and (iv) any proceeds  of any of  the foregoing.   It is expressly
agreed that  anything herein  contained to the  contrary notwithstanding,  the
Assignor  shall remain  liable under  said  insurances to  perform all  of the
obligations assumed by it thereunder and the Assignee shall have no obligation
or liability (including, without limitation, any obligation  or liability with
respect  to  the  payment  of  premiums,  calls  or  assessments)  under  said
insurances by  reason of or arising  out of this instrument  of assignment nor
shall  the  Assignee be  required or  obligated in  any  manner to  perform or
fulfill any obligations of  the Assignor under or pursuant  to said insurances
or to make any payment or to make any inquiry as to the nature  or sufficiency
of any payment received by it or to  present or file any claim, or to take any
other action  to collect or  enforce the payment of  any amounts which  or may
have been assigned to it or to which it may be entitled hereunder at  any time
or times.

      This  Assignment is made pursuant  to the Credit  Agreement, dated April
30,  1996 (as the same  may be amended, modified  or supplemented from time to
time,  the  "Credit Agreement"),  by and  among  Reading &  Bates Corporation,
Reading & Bates Drilling Co.,  the Banks (as defined therein)  and Christiania
Bank og Kreditkasse, New York Branch, as Agent.

      The  Assignor hereby  constitutes  the Assignee  and its  successors and
assigns, the Assignor's true and lawful attorney, with full power (in the name
of the Assignor or  otherwise) to ask, require, demand,  receive, compound and
give  acquittance for  any and  all moneys and  claims for  moneys due  and to
become due  under or arising out of said  insurances, to endorse any checks or
other instruments or orders in connection therewith and to file  any claims or
to take any action or institute any proceedings which the Assignee may deem to
be  necessary  or  advisable in  the  premises;  provided,  however, that  the
Assignee  shall not  take any  action pursuant  to the  power granted  by this
paragraph unless an  Event of  Default under the  Credit Agreement shall  have
occurred and be continuing.   Such appointment of the Assignee as  attorney is
irrevocable and coupled with an interest. 

      The  Assignor hereby covenants and agrees to procure that notice of this
Assignment, in  the  form  of Annex  I  hereto, shall  be  duly given  to  all
underwriters  and  that  where the  consent  of  any  underwriter is  required
pursuant  to  any of  the insurances  assigned hereby,  such consent  shall be
obtained  and evidence thereof shall be given  to the Assignee, and that there
shall be duly endorsed upon all slips, cover notes, policies, certificates  of
entry  or other  instruments issued  or to  be issued  in connection  with the
insurances assigned hereby such clauses as to additional named assured or loss
payees  set forth in Annex I hereto.  In all cases, unless otherwise agreed in
writing by the  Assignee, such  slips, cover notes,  notices, certificates  of
entry or other instruments shall show the Assignee and the Banks as additional
named assured  and shall provide  that there will  be no recourse  against the
Assignee for payment of premiums, calls or assessments.

      The powers  and authority to the  Assignee herein have been  given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees  that at any time  and from time  to time, upon  the
written,  reasonable request of the  Assignee, the Assignor  will promptly and
duly execute and deliver any and all such further instruments and documents as
the  Assignee may reasonably  require in obtaining  the full  benefits of this
Assignment and of the rights and powers herein granted.

      The Assignor hereby  warrants and represents that it has not assigned or
pledged,  and hereby covenants that, without the prior written consent thereof
of  the Assignee,  so long as  this instrument  of assignment  shall remain in
effect, it will not assign or pledge the whole or any part of the right, title
and interest hereby assigned to anyone other than the Assignee, its successors
or assigns, and  it will not take  or omit to take  any action, the taking  or
omission of  which  might  result  in  an alteration  or  impairment  of  said
insurances or  this  Assignment, or  of  any of  the  rights created  by  said
insurances or this Assignment.

      All notices or other communications which are required to be made to the
Assignee hereunder shall be made by airmail postage prepaid letter, telefax or
by telex, confirmed by letter to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888


or at  such other address  as any such  party may designate  by notice  to the
others.

      Any  payments made pursuant  to the terms  hereof shall be  made to such
account  as may,  from  time  to  time,  be designated  by  the  Assignee  for
distribution  in accordance with the  Mortgages, the Credit  Agreement and the
other Credit Documents.

      THIS ASSIGNMENT SHALL  BE GOVERNED BY THE INTERNAL LAWS  OF THE STATE OF
NEW YORK, WITHOUT REFERENCE TO  PRINCIPLES OF CONFLICTS OF LAW.   THE ASSIGNOR
HEREBY  IRREVOCABLY  WAIVES ALL  RIGHTS  TO A  TRIAL  BY JURY  IN  ANY ACTION,
PROCEEDING OR COUNTERCLAIM ARISING OUT OF  OR RELATING TO THIS ASSIGNMENT, THE
OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

      None  of the  terms and  conditions of this  Assignment may  be changed,
waived, modified  or varied  in any manner  whatsoever unless in  writing duly
signed by  the Assignor  and  the Assignee  (with the  consent  of either  the
Required Banks (as defined in the Credit Agreement) or, to the extent required
by Section 12.12 of the Credit Agreement, all of the Banks).

      In  the event  that the Insurance  Collateral or any  portion thereof is
sold in  connection  with a  sale  permitted by  Section  8.02 of  the  Credit
Agreement or is otherwise released at the direction of the  Required Banks (or
all  the  Banks,  to the  extent  required  by  Section  12.12 of  the  Credit
Agreement), the Assignee,  at the request  and expense of  the Assignor,  will
duly  assign, transfer and deliver to the Assignor (without recourse and with-
out  any representation  or warranty)  such of  the Insurance  Collateral (and
releases therefor) as is then being  (or has been) so sold or released  and as
may be in the possession of the Assignee and has not theretofore been released
pursuant  to this  Assignment.   At  any time  the Assignor  desires that  the
Insurance Collateral  or a  portion thereof be  released as  provided in  this
paragraph, the  Assignor shall deliver to the Assignee a certificate signed by
an Authorized Officer (as  defined in the Credit  Agreement) stating that  the
release of the Insurance  Collateral or portion thereof is  permitted pursuant
to this paragraph.

      The  Assignor  hereby  authorizes  the  Assignee  to  execute  and  file
Financing  Statements  (Form UCC-1)  and  amendments  thereto as  provided  in
Article 9 of the Uniform Commercial Code.


      IN WITNESS WHEREOF, the  Assignor has caused this Assignment  to be duly
executed the 30th day of April, 1996.


                                    READING & BATES DRILLING CO.


                                    By: ________________________
                                        Title:



                                                                ANNEX I       
                                                                  to          
                                                      Assignment of Insurances





                             NOTICE OF ASSIGNMENT


      Reading & Bates  Drilling Co. (the "Owner"),  the owner of  the Bahamian
flag offshore drilling  rig J.W. McLean (the "Rig"), HEREBY  GIVES NOTICE that
by a Collateral Assignment of Insurance  dated April 30, 1996 and made between
the Owner  and Christiania Bank og Kreditkasse, New York Branch, as Agent (the
"Assignee") for itself  and certain  other Banks (the  "Assignee"), the  Owner
assigned to  the Assignee all of the Owner's  right, title and interest in and
to all insurances and the benefit of all insurances now or hereafter taken out
in respect of the Rig.  This Notice of Assignment and the Loss Payable Clauses
attached hereto are  to be indorsed on all policies  and certificates of entry
evidencing such insurance.


                        READING & BATES DRILLING CO.

                        By                        
                           Title:


                             LOSS PAYABLE CLAUSES

                              Hull and War Risks


      Loss,  if  any, payable  to Christiania  Bank  og Kreditkasse,  New York
Branch, as Agent  for the Banks, for distribution  by it to said Banks  and to
Reading & Bates Drilling Co., Owner, as their respective interests may appear,
or order, except that,  unless Underwriters have been otherwise  instructed by
notice in writing from the Agent, in the case of any loss involving any damage
to the Rig or liability  of the Rig, the Underwriters may pay directly for the
repair, salvage, liability  or other charges involved or, if  the Owner of the
Rig shall  have repaired the damage  and paid the cost  thereof, or discharged
the liability or paid the salvage or other charges, then  the Underwriters may
pay the Owner  as reimbursement to the  extent the Owner has  paid the covered
loss.

      In the event of an actual or constructive total loss or a compromised or
arranged  total loss or requisition  of title, all  insurance payment therefor
shall be  paid to the  Agent, for distribution  by it  in accordance with  the
terms of the first preferred Bahamian mortgage relating to the Rig.



                           PROTECTION AND INDEMNITY

      Loss,  if  any, payable  to Christiania  Bank  og Kreditkasse,  New York
Branch, as Agent  for the  Banks for distribution  by it to  the Banks and  to
Reading & Bates Drilling Co., Owner, as their respective interests may appear,
or  order,  except that,  unless and  until  Underwriters have  been otherwise
instructed by notice in writing from the Agenty, any loss may be paid directly
to  the  person to  whom  the liability  covered  by this  insurance  has been
incurred, or to  the Owner of the Rig to reimburse  it for any loss, damage or
expenses incurred  by  it and  covered  by this  insurance,  provided that  in
respect of  any claim  in excess  of $1,000,000, the  Underwriters shall  have
first   received  evidence  that  the  liability   insured  against  has  been
discharged.



                                                               Exhibit 10.101 

                      FIRST AMENDMENT TO CREDIT AGREEMENT


            FIRST AMENDMENT (the "Amendment"), dated as of July 9, 1996, among
READING  & BATES CORPORATION ("Holdings"),  READING & BATES  DRILLING CO. (the
"Borrower"), the financial institutions party to the Credit Agreement referred
to below (the "Banks"), Credit Lyonnais New York Branch, as Co-Agent (the "Co-
Agent") and Christiania Bank  og Kreditkasse, New  York Branch, as Agent  (the
"Agent").  All capitalized terms  used herein and not otherwise  defined shall
have the respective meanings provided such terms in the Credit Agreement.


                             W I T N E S S E T H :


            WHEREAS, Holdings, the Borrower,  the Banks, the Co-Agent and  the
Agent are  parties to  a Credit  Agreement,  dated as  of April  30, 1996  (as
amended, modified or supplemented, the "Credit Agreement"); and

            WHEREAS,  the parties hereto  wish to amend  certain provisions of
the Credit Agreement as herein provided;

            NOW, THEREFORE, it is agreed:

      1.    On and  after the First  Amendment Effective Date  (as hereinafter
defined),  the  Total Commitment  under the  Credit  Agreement shall  (and the
parties  hereto agree  that  it  shall)  be  increased  from  $100,000,000  to
$140,000,000 and the  Commitment of each Bank  shall on such date be  equal to
the respective amounts shown on  Annex I hereto, which on the  First Amendment
Effective Date shall replace existing Annex I to the Credit Agreement.

      2.    Section 2.01(c)  of  the Credit  Agreement  is hereby  amended  by
inserting  the following proviso immediately prior to the semi-colon in clause
(i)(y) thereof:

      ",  provided that on and after the First Amendment Effective Date, until
      such time as the conditions set forth in Section 7.13 are fully complied
      with,  for purposes  of this  clause (y)  the Adjusted  Total Commitment
      shall be calculated on the basis of a Total Commitment of $120,000,000.

      3.    Section 3.03(b)  of  the Credit  Agreement  is hereby  amended  by
deleting the commitment reduction schedule contained therein and inserting  in
lieu thereof the following new commitment reduction schedule:

            Date                    Amount

      May 1, 1997                   $11,900,000
      November 1, 1997              $11,900,000
      May 1, 1998                   $11,900,000
      November 1, 1998              $11,900,000
      May 1, 1999                   $11,900,000
      November 1, 1999              $11,900,000
      May 1, 2000                   $11,900,000
      November 1, 2000              $11,900,000
      Maturity Date                 Remaining amount
                                    of Total Commitment

      4.    Conditions Precedent to  the First Amendment Effective  Date.  The
occurrence of  the First Amendment  Effective Date and  the obligation  of the
Banks to increase their Commitments hereunder are subject (except as otherwise
hereinafter   indicated),  to  the  satisfaction  of  each  of  the  following
conditions: 

            (a)   Execution of Amendment; Notes.  (i) The Amendment shall have
      been executed and (ii) there shall have been delivered to  the Agent for
      the account of each  Bank which has a changed Commitment as  a result of
      this Amendment a new Revolving Note in the appropriate amount to reflect
      such new Commitment and as otherwise provided in the Credit Agreement.

            (b)   Opinions  of  Counsel.     The  Agent  shall  have  received
      opinions, addressed to  the Agent and  each of the  Banks and dated  the
      First Amendment  Effective Date,  from (i)  Wayne Hillin,  Esq., General
      Counsel  to the Credit Parties,  which opinion shall  cover matters, and
      shall be in form and substance, satisfactory to the Agent  and (ii) from
      local counsel satisfactory to the Agent as the  Agent may request, which
      opinions  shall   cover  the   perfection  of  the   security  interests
      (including, without  limitation, opinions  as to the  enforceability and
      effect of the Mortgage Amendments (as herein defined))  granted pursuant
      to  this Amendment and such  other matters incident  to the transactions
      contemplated herein as the Agent may reasonably  request and shall be in
      form and substance satisfactory to the Agent.

            (c)   Corporate Proceedings.  (1)   The Agent shall  have received
      from  each  of  RB  Drilling  Co.  and  HRB  Rig  Corporation  (each  an
      "Additional  Mortgagor" and  together  the  "Additional  Mortgagors")  a
      certificate, dated the  First Amendment  Effective Date,  signed by  the
      President or  any Vice-President or other  appropriate representative of
      such Additional  Mortgagor in  the form  of  Exhibit F with  appropriate
      insertions and  deletions, together  with copies  of the  certificate of
      formation,  the  by-laws,  or  other organizational  documents  of  such
      Additional Mortgagor  and the resolutions, or  such other administrative
      approval, of such  Additional Mortgagor referred to in  such certificate
      and  all of the foregoing (including each such certificate of formation,
      certificate   of  incorporation   and  by-laws)   shall  be   reasonably
      satisfactory to the Agent.

            (2)   All corporate and legal  proceedings and all instruments and
      agreements  in connection  with  the transactions  contemplated by  this
      Amendment  shall be reasonably satisfactory in form and substance to the
      Agent,  and the Agent shall have received  all information and copies of
      all certificates,  documents and papers, including  good standing certi-
      ficates and any  other records of corporate proceedings and governmental
      approvals, if any, which the Agent may have reasonably requested in con-
      nection therewith, such documents and  papers, where appropriate, to  be
      certified by proper corporate or governmental authorities.

            (d)   Fees.  The  Borrower shall have  paid to  the Agent and  the
      Banks all Fees and expenses agreed upon by such parties to be paid on or
      prior to such date.

            (e)   Repayment; Notice of Borrowing.  The Borrower shall repay to
      the  Agent  and  the Banks  all  amounts  outstanding  under the  Credit
      Facility  (including  accrued interest  thereon  and  any breakage  fees
      incurred  by the  Agent and the  Banks as  a result  of such repayment),
      whereupon the  Borrower may reborrow such amounts (which reborrowing may
      occur simultaneously with the repayment  described above), pursuant to a
      Notice of  Borrowing in the form  of Exhibit A to  the Credit Agreement,
      pro rata based upon  the commitments as in effect  immediately following
      the effectiveness of this Amendment.

            (f)   Security  Agreement.  Each  Additional Mortgagor  shall have
      duly  authorized, executed and  delivered a counterpart  to the Security
      Agreement, together with:

                  (1)   executed  copies of  Financing Statements  (Form UCC-1
            and/or UCC-3) or appropriate  local equivalent in appropriate form
            for filing under the  UCC or appropriate local equivalent  of each
            jurisdiction as may be necessary to perfect the security interests
            purported to be created by the Security Agreement;

                  (2)   certified copies of Requests for Information or Copies
            (Form  UCC-11), or  equivalent  reports,  each  of a  recent  date
            listing  all  effective   financing  statements   that  name   any
            Additional Mortgagor or a  division or operating unit of  any such
            Person, as debtor and that are filed in the jurisdictions referred
            to in  immediately preceding clause  (1), together with  copies of
            such  financing   statements  (none  of  which   shall  cover  the
            Collateral  except (x)  those  with respect  to which  appropriate
            termination statements executed  by the secured  lender thereunder
            have been delivered to the Collateral Agent and  (y) to the extent
            evidencing Permitted Liens);

                  (3)   evidence that all other  recordings and filings of, or
            with respect to, the Security Agreement, and all other actions, as
            may  be  necessary or,  in the  opinion  of the  Collateral Agent,
            desirable to perfect the security interests intended to be created
            by the Security Agreement have been completed (it being understood
            and  agreed   that  UCC   financing  statements  and   termination
            statements shall  be filed in the  appropriate governmental office
            within  three Business  Days after  the First  Amendment Effective
            Date); 

      and the  Security Agreement and  such other documents  shall be in  full
      force and effect.

            (g)   Subsidiary Guaranty.    Each Additional  Mortgagor  (each  a
      "Subsidiary  Guarantor")  shall  have   duly  authorized,  executed  and
      delivered  a counterpart of the Subsidiary  Guaranty, and the Subsidiary
      Guaranty  shall  be  in  full force  and  effect  with  respect to  such
      Additional Mortgagors.

            (h)   Change of Registry.  The  national registry of the  drilling
      rig  "J.W. McLean" shall be changed from  the Bahamas to Panama with the
      Bahamian  Mortgage to be replaced  by a Panamanian  Mortgage pursuant to
      clause (i)(2) below.

            (i)   Mortgages.  (i)  Each  Additional Mortgagor shall  have duly
      authorized, executed  and delivered the following  document or documents
      to  which it is a party (as  modified, amended or supplemented from time
      to time, the "Additional Mortgages"):

                  (1)   with respect  to the drilling rig "Harvey  H. Ward," a
            US Mortgage substantially in the form of Exhibit A-1 hereto; and

                  (2)   with respect to each of the drilling rigs "Rig 41" and
            "J.W. McLean," a Panamanian Mortgage, substantially in the form of
            Exhibit A-2 hereto. 

      All actions  necessary, desirable  or otherwise reasonably  requested by
      the  Collateral Agent to provide  the Collateral Agent  with a perfected
      first  priority  security interest  in  all Collateral  purported  to be
      covered by the Additional Mortgages shall have been taken.

            (ii)  The respective Mortgagors of the drilling rigs "Jack Bates,"
      "W.D.  Kent" and "D.R. Stewart" shall have duly authorized, executed and
      delivered   amendments  to   the   Mortgages  securing   such   vessels,
      substantially in the form  of Exhibit B-1 hereto,  and the Mortgagor  of
      the drilling rig "Charley  Graves" shall have duly  authorized, executed
      and  delivered  an  amendment  to  the  Mortgage  securing such  vessel,
      substantially in the form of Exhibit B-2 hereto.

            (j)   Evidence  of Lien, etc.   The Agent shall  have received (i)
      United  States Coast Guard  certificates of  ownership showing  (or con-
      firmation updating previously reviewed certificates and indicating) that
      the US  Rig Harvey H.  Ward is  registered in the  ownership of  HRB Rig
      Corporation, and subject to the Lien of  the US Mortgage and free of all
      other Liens of record, (ii) a certificate of the Director General of the
      Public Registry  of Panama showing (or  confirmation updating previously
      reviewed  certificates and  indicating) that  the  Panamanian Rig  41 is
      registered in the ownership of  RB Drilling Co., and the Panamanian  Rig
      J.W. McLean is registered in the ownership of the Borrower, each subject
      to the  Lien of the applicable Panamanian Mortgage and free of all other
      Liens of record.

            (k)   Vessel  Trust Indenture.    HRB Rig  Corporation shall  have
      acknowledged and agreed to the terms of the Amended  and Restated Vessel
      Trust Indenture.  

            (l)   Rig  Reports; Drilling Contracts.  (i)  The Agent shall have
      received:  

                  (1)   reports  from Approved  Shipbrokers setting  forth the
            Market  Value of  each of  the  Harvey H.  Ward, Rig  41, and  the
            offshore  production   vessel   Seillean  (each   an   "Additional
            Collateral  Rig"  and  collectively,  the  "Additional  Collateral
            Rigs");

                  (2)   evidence  satisfactory  to the  Collateral  Agent that
            each of the drilling rigs Harvey H. Ward and Rig 41 are classified
            in the  highest class available for rigs or vessels of its age and
            type  with  the  American  Bureau  of  Shipping,  Inc.  or another
            internationally   recognized  classification   society  reasonably
            acceptable  to   the  Collateral  Agent,  free   of  any  material
            outstanding requirements or recommendations; and

            (ii)  The Agent shall have received true and correct copies of all
      current  and pending drilling contracts  relating to the  Harvey H. Ward
      and Rig 41. 

            (m)   Insurance  Report.   On  or  prior  to the  First  Amendment
      Effective Date, the  Agent shall  have received a  detailed report  from
      Soriero & Company, Inc., or another firm of independent marine insurance
      brokers acceptable to the Agent  and the Required Banks with respect  to
      the insurance maintained by the Additional Mortgagors in connection with
      the Harvey  H. Ward and  Rig 41, together  with a certificate  from such
      broker  certifying  that  such  insurances  (i)  are  placed  with  such
      insurance companies  and/or underwriters and/or clubs,  in such amounts,
      against such risks, and in such form, as are normally insured against by
      similarly  situated insureds and as  are necessary or  advisable for the
      protection of the Trustee or the Agent, as the case may be, as Mortgagee
      and (ii) conform with the requirements of the Additional Mortgages.

            (n)   Collateral   Assignments  of  Insurance.    Each  Additional
      Mortgagor  shall have executed and  delivered to the  Collateral Agent a
      Collateral Assignment of  Insurance with respect to  the insurance main-
      tained by  such Additional Mortgagor on  the Harvey H. Ward  and Rig 41,
      together with:  

                  (1)   executed  copies of  Financing Statements  (Form UCC-1
            and/or UCC-3) or appropriate  local equivalent in appropriate form
            for filing under the  UCC or appropriate local equivalent  of each
            jurisdiction  as  may  be  necessary to  perfect  the  assignments
            purported  to   be  created  by  each   Collateral  Assignment  of
            Insurance; 

                  (2)   certified copies of Requests for Information or Copies
            (Form  UCC-11),  or equivalent  reports,  each  of  a recent  date
            listing   all  effective   financing  statements  that   name  any
            Additional  Mortgagor or  a  division or  operating  unit of  such
            Person, as debtor and that are filed in the jurisdictions referred
            to in immediately  preceding clause (1),  together with copies  of
            such  financing   statements  (none  of  which   shall  cover  the
            Collateral  except (x)  those  with respect  to which  appropriate
            termination statements  executed by the secured  lender thereunder
            have been delivered to the Collateral Agent  and (y) to the extent
            evidencing Permitted Liens);

                  (3)   evidence that all other  recordings and filings of, or
            with respect to, each Collateral Assignment of  Insurance, and all
            other  actions, as  may be  necessary or,  in the  opinion of  the
            Collateral Agent, desirable to perfect the assignments intended to
            be created  by each Collateral  Assignment of Insurance  have been
            completed  (it  being understood  and  agreed  that UCC  financing
            statements  and  termination  statements  shall be  filed  in  the
            appropriate  governmental office within  three Business Days after
            the First Amendment Effective Date);

      and each such Collateral Assignment of Insurance shall be in full  force
      and effect.

      5.    Section 7 of the  Credit Agreement is hereby amended  by inserting
at the end thereof the following Section 7.13:

                  7.13  Availability Covenants.   Notwithstanding  anything to
      the contrary contained in this Agreement, the sum of (x) the outstanding
      principal amount of Loans pursuant to  this Agreement and (y) the Letter
      of  Credit Outstandings  pursuant to  this Agreement  shall in  no event
      exceed $120,000,000 until such time, if any, as the following conditions
      are satisfied (as determined in good faith by the Agent):

                  (a)   Rig Acquisition.  RB Drilling Co. shall have completed
            the  purchase  of the  offshore  production  vessel Seillean  from
            Britoil   (Beta)  Limited,   pursuant  to   acquisition  documents
            reasonably acceptable in form  and substance to the Agent  and the
            Required Banks.

                  (b)   Mortgages.  RB   Drilling   Co.   shall    have   duly
            authorized,  executed and  delivered  a Panamanian  Mortgage  with
            respect to  the Seillean (the "Seillean  Mortgage"), substantially
            in  the  form of  Exhibit A-2  hereto  and all  actions necessary,
            desirable  or  otherwise reasonably  requested  by  the Collateral
            Agent  to provide  the  Collateral Agent  with  a perfected  first
            priority security interest in the Seillean shall have been taken.

                  (c)   Evidence of Lien, etc.  The Agent shall  have received
            a  certificate of the Director  General of the  Public Registry of
            Panama  showing  (or  confirmation  updating  previously  reviewed
            certificates and  indicating) that the Panamanian  Rig Seillean is
            registered in the ownership of RB Drilling Co., and subject to the
            Lien of the  Panamanian Mortgage and  free of all  other Liens  of
            record.

                  (d)   Report; Contracts.  The Agent shall have received:

                        (1)   evidence  satisfactory  to the  Collateral Agent
                  that the offshore production  vessel Seillean is  classified
                  in  the highest class available  for rigs or  vessels of its
                  age and type with  the American Bureau of Shipping,  Inc. or
                  another  internationally  recognized classification  society
                  reasonably acceptable  to the Collateral Agent,  free of any
                  material outstanding requirements or recommendations; and  

                        (2)   true  and correct  copies  of  all  current  and
            pending     operation and/or  charter  contracts relating  to  the
            Seillean.

                  (e)   Insurance Report.  On or prior to  the First Amendment
            Effective Date, the  Agent shall have  received a detailed  report
            from  Soriero &  Company,  Inc., or  another  firm of  independent
            marine insurance brokers acceptable to  the Agent and the Required
            Banks evidencing, to the satisfaction of  the Agent, the inclusion
            of the  Seillean under all appropriate insurances maintained by RB
            Drilling Co..

                  (f)   Collateral Assignment of  Insurance.  RB Drilling  Co.
            shall  have  executed and  delivered  a  Collateral Assignment  of
            Insurance  with  respect  to   the  insurance  maintained  on  the
            Seillean, together with:  

                  (1)   executed  copies of  Financing Statements  (Form UCC-1
            and/or UCC-3) or appropriate  local equivalent in appropriate form
            for filing under the  UCC or appropriate local equivalent  of each
            jurisdiction  as  may  be  necessary to  perfect  the  assignments
            purported  to   be  created  by  each   Collateral  Assignment  of
            Insurance; 

                  (2)   evidence that all other  recordings and filings of, or
            with respect to, such Collateral Assignment of  Insurance, and all
            other actions,  as may  be necessary  or, in  the  opinion of  the
            Collateral Agent, desirable to  perfect the assignment intended to
            be created  by such Collateral  Assignment of Insurance  have been
            completed  (it  being understood  and  agreed  that UCC  financing
            statements  and  termination  statements  shall be  filed  in  the
            appropriate governmental  office within three Business  Days after
            the First Amendment Effective Date);

            and such Collateral Assignment of Insurance shall be in full force
            and effect.

                  (g)   Updated Annexes.  The Agent shall have received (i) an
            updated schedule  of Rigs and Vessels  to replace Annex VI  to the
            Credit Agreement,  which schedule  shall  include the  information
            with  respect  to the  Seillean and  (ii)  an updated  schedule of
            Existing  Liens (if  necessary) to  replace Annex  VIII,  with all
            Liens required to be listed thereon constituting Permitted Liens.

      6.    Section  10 of the Credit Agreement is hereby amended by inserting
in appropriate alphabetical order the following new definitions:

            "First Amendment  Effective Date"  shall mean the  First Amendment
      Effective Date as defined in the First Amendment, dated July 9, 1996, to
      this Agreement.

            "First Amendment"  shall mean the  First Amendment, dated  July 9,
      1996, to this Agreement.

      7.    The  definition of "Bahamian Rig"  appearing in Section  10 of the
Credit  Agreement is hereby amended  by adding a reference  to ", prior to the
First Amendment Effective Date" immediately following  the reference to "shall
mean."

      8.    The definition of "Mortgage" appearing in Section 10 of the Credit
Agreement is hereby amended by deleting the current definition in its entirety
and inserting in lieu thereof the following new definition:

            "Mortgage" shall mean  (i) prior to the First  Amendment Effective
      Date,  each of the Mortgages as defined  in Section 5.13(a), (ii) on and
      after the First Amendment Effective Date, but prior to the effectiveness
      of  the Seillean  Mortgage as  defined in  paragraph 5(b)  of the  First
      Amendment, each of the  Mortgages as defined in Section  5.13(a) (except
      the Bahamian Mortgage) and  each of the Additional Mortgages  as defined
      in  paragraph 4(i) of  the First Amendment  and (iii) subsequent  to the
      effectiveness of the Seillean Mortgage, each of the Mortgages as defined
      in  Section  5.13(a)  (except  the  Bahamian  Mortgage),  each   of  the
      Additional Mortgages and the Seillean Mortgage.

      9.    The  definition of "Panamanian Rig" contained in Section 10 of the
Credit Agreement is hereby  amended by deleting the current  definition in its
entirety and inserting in lieu thereof the following new definition:

            "Panamanian  Rig" shall  mean  (i) prior  to  the First  Amendment
      Effective  Date, the offshore drilling  rig Charley Graves,  (ii) on and
      after the First Amendment Effective Date, but prior to the effectiveness
      of  the Seillean  Mortgage as  defined in  paragraph  5(b) of  the First
      Amendment, the offshore  drilling rigs Charley  Graves, J.W. McLean  and
      Rig  41, and  (iii)  subsequent to  the  effectiveness of  the  Seillean
      Mortgage,  the offshore drilling  rigs Charley Graves,  J.W. McLean, Rig
      41, and the offshore production vessel Seillean.

      10.   The  definition  of "U.S.  Rigs" contained  in  Section 10  of the
Credit Agreement is  hereby amended by deleting the current  definition in its
entirety and inserting in lieu thereof the following new definition:

            "U.S.  Rigs" shall mean (i) prior to the First Amendment Effective
      Date, the  offshore drilling rigs Jack Bates, D.R. Stewart and W.D. Kent
      and  (ii) on and after the First  Amendment Effective Date, the offshore
      drilling rigs Jack Bates, D.R. Stewart, W.D. Kent and Harvey H. Ward.

      11.   On  the First Amendment Effective Date, existing Annex IV shall be
replaced with Annex IV hereto.

      12.   In order to induce the Banks to enter into this Amendment, each of
Holdings and the Borrower  hereby represents and warrants that (i)  the repre-
sentations, warranties and  agreements contained  in Section 7  of the  Credit
Agreement are true and correct in all material respects on and as of the First
Amendment  Effective  Date (except  with  respect to  any  representations and
warranties limited by their terms to a specific date, which shall be true  and
correct in all  material respects as of  such date) and  (ii) there exists  no
Default or Event of Default on the First Amendment Effective  Date (as defined
herein) in each case both before and after giving effect to this Amendment.

      13.   This  Amendment is limited as specified and shall not constitute a
modification,  acceptance or  waiver  of any  other  provision of  the  Credit
Agreement or any other Credit Document.

      14.   This Amendment may be  executed in any number of  counterparts and
by  the different  parties  hereto on  separate  counterparts, each  of  which
counterparts  when executed  and delivered  shall be  an original, but  all of
which shall together constitute one  and the same instrument.  A  complete set
of counterparts  shall be lodged with  each of Holdings, the  Borrower and the
Agent.

      15.   THIS  AMENDMENT  AND THE  RIGHTS  AND OBLIGATIONS  OF  THE PARTIES
HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF THE
STATE OF NEW YORK.

      16.   This  Amendment shall  become effective  on the  date (the  "First
Amendment  Effective Date") when (i)  each of Holdings,  the Borrower, and the
Banks  shall have signed a copy hereof  (whether the same or different copies)
and shall have delivered (including by way of facsimile) the same to the Agent
at the Notice Office and (ii) each of the  conditions set forth in paragraph 4
hereof shall have been satisfied.

      17.    From and after the First Amendment Effective Date, all references
in the Credit Agreement and the other Credit Documents to the Credit Agreement
shall be deemed to be references to such Credit Agreement as modified hereby.

            IN WITNESSES  WHEREOF, the parties  hereto have caused  their duly
authorized officers to execute and deliver this Amendment as of the date first
above written.

                              READING & BATES CORPORATION 


                              By:                                             
                                 Title:

                              READING & BATES DRILLING CO.


                              By:                                             
                                 Title:

                              CHRISTIANIA BANK OG
                                KREDITKASSE, NEW YORK BRANCH,
                                Individually, and as Agent


                              By:                                             
                                 Title:

                              By:                                             
                                 Title:

                              CREDIT LYONNAIS NEW YORK
                                BRANCH


                              By:                                             
                                 Title:

                              BANQUE INDOSUEZ


                              By:                                             
                                 Title: 

                              By:                                             
                                 Title: 

                              BANK AUSTRIA AKTIENGESELLSCHAFT


                              By:                                             
                                 Title: 


                              By:                                             
                                 Title: 

                              THE FUJI BANK, LIMITED


                              By:                                             
                                 Title:

                                                                       ANNEX I


                                  COMMITMENTS

                           Bank                     Commitment

            Christiania Bank og Kreditkasse,        $55,000,000
            New York Branch
            Credit Lyonnais New York Branch         $32,500,000
            Banque Indosuez                         $18,500,000
            Bank Austria Aktiengesellschaft         $18,500,000
            The Fuji Bank, Limited                  $15,500,000

                  Total                            $140,000,000
                         


                                                               Exhibit 10.102 


                        SUBSIDIARY ASSUMPTION AGREEMENT


            SUBSIDIARY  ASSUMPTION AGREEMENT (this  "Agreement"), dated  as of
July 9,  1996, made by  RB DRILLING CO.,  an Oklahoma corporation  and HRB Rig
CORPORATION, an Oklahoma corporation (each a "New Subsidiary" and together the
"New Subsidiaries").  Unless otherwise defined herein, capitalized terms  used
herein and defined  in the Credit Agreement referred to  below are used herein
as so defined.


                             W I T N E S S E T H :


            WHEREAS, READING & BATES  CORPORATION, a Delaware corporation (the
"Holdings"),  READING &  BATES  DRILLING  CO.,  an Oklahoma  corporation  (the
"Borrower"), the financial institutions party to the Credit Agreement referred
to below (each, a "Bank" and, collectively,  the "Banks"), CREDIT LYONNAIS NEW
YORK  BRANCH,  as   Co-Agent  (the  "Co-Agent"),   and  CHRISTIANIA  BANK   OG
KREDITKASSE, NEW  YORK BRANCH, as Agent  for the Banks (in  such capacity, the
"Agent") are parties to  a Credit Agreement,  dated as of  April 30, 1996  (as
amended, modified or supplemented from time to time, the "Credit Agreement");

            WHEREAS,  in  connection  with   the  Credit  Agreement,   various
Subsidiaries of the Borrower have entered into a Subsidiary Guaranty, dated as
of  April 30,  1996 and  (as in  effect  on the  date hereof,  the "Subsidiary
Guaranty");

            WHEREAS, in connection with the Credit Agreement, the Borrower and
various of its Subsidiaries have entered into an Amended and Restated Security
Agreement,  dated as of April  30, 1996 (as in effect  on the date hereof, the
"Security  Agreement"   and,  together  with  the   Subsidiary  Guaranty,  the
"Documents"); and

            WHEREAS, each New Subsidiary  desires to execute and deliver  this
Agreement in order to become a party to each of the Documents;


            NOW, THEREFORE, IT IS AGREED:

            1.    Subsidiary  Guaranty.   By  executing  and  delivering  this
Agreement, the each New  Subsidiary hereby becomes  a party to the  Subsidiary
Guaranty as a  "Guarantor" thereunder,  and hereby expressly  and jointly  and
severally assumes all obligations and liabilities of a "Guarantor" thereunder,
subject to the limitations set forth therein.

            2.    Security  Agreement.    By  executing  and  delivering  this
Agreement, the each New Subsidiary hereby  (i) becomes a party to the Security
Agreement as  an "Assignor" thereunder, (ii) expressly assumes all obligations
and liabilities of an  "Assignor" thereunder and (iii)  pledges and grants  to
the  Collateral Agent,  for the  benefit of  Secured Creditors,  as collateral
security for the prompt payment in  full when due (whether at stated maturity,
by acceleration  or otherwise) of the Obligations  (as defined in the Security
Agreement),  a security  interest in, to  and for  the benefit  of the Secured
Creditors all of its right, title and interest in, to and under the Collateral
(as defined in the Security Agreement).  Each New Subsidiary hereby makes each
of the representations and  warranties contained in the Security  Agreement on
the date hereof, after giving effect to this Agreement.

            3.  Financing  Statements.  By   executing  and  delivering   this
Agreement, the each New Subsidiary hereby agrees to execute and deliver to the
Collateral  Agent  such  financing  statements,  in  form  acceptable  to  the
Collateral  Agent, as the Collateral Agent may  request or as are necessary or
desirable in the  opinion of the Collateral Agent to  establish and maintain a
valid,  enforceable,  first  priority   perfected  security  interest  in  the
Collateral   (as  defined  in  the  Security  Agreement)  owned  by  each  New
Subsidiary.

            4.   Counterparts.  This Agreement may  be signed in any number of
counterparts, each of which shall be an  original, with the same effect as  if
the signatures thereto and hereto were upon the same instrument.

            5.  GOVERNING  LAW.  THIS  AGREEMENT  SHALL  BE  GOVERNED  BY  AND
CONSTRUED IN ACCORDANCE WITH  THE LAWS OF THE STATE OF NEW YORK.

            IN  WITNESS WHEREOF, the undersigned has  caused this Agreement to
be duly executed and delivered as of the date first above written.

                                            RB DRILLING CO.

                                            By______________________________
                                                Title:

                                            HRB RIG CORPORATION

                                            By_____________________________
                                                Title:



                                                                Exhibit 10.103


                       INDENTURE OF FIRST NAVAL MORTGAGE

                         READING & BATES DRILLING CO.

                                    - and -

                    CHRISTIANIA BANK OG KREDITKASSE, agent

                                 as Mortgagee


                                  J.W. McLEAN


                              Dated July 9, 1996

==============================================================================

                                     INDEX

CLAUSE      SUBJECT MATTER                                                PAGE

  1         REPRESENTATIONS AND COVENANTS . . . . . . . . . . . . . . . . . 2 
  2         DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 4 
  3         MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
  4         PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . .  10 
  5         PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
  6         INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
  7         RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
  8         PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
  9         ENFORCEABILITY AND MORTGAGEE'S POWERS . . . . . . . . . . . .  19 
  10        APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
  11        FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
  12        POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
  13        INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
  14        EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
  15        COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
  16        ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
  17        TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
  18        WAIVER; AMENDMENT . . . . . . . . . . . . . . . . . . . . . .  25 
  19        MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
  20        JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  26 

EXHIBIT 1   FORM OF CREDIT AGREEMENT
EXHIBIT 2   FORM OF AMENDMENT

=============================================================================

       THIS INDENTURE OF FIRST  NAVAL MORTGAGE made and entered  into this 9th
day of July, 1996, between READING & BATES DRILLING  CO.,  an Oklahoma company
duly constituted  and existing in  conformity with  the laws of  the State  of
Oklahoma  with its principal office  at 901 Threadneedle,  Suite 200, Houston,
Texas   77079  (hereinafter  called  the  "Owner")  and  CHRISTIANIA  BANK  OG
KREDITKASSE, NEW  YORK BRANCH having offices at 11 West 42nd Street, New York,
NY  10036, as agent for the Banks (as hereinafter defined) (hereinafter called
the  "Mortgagee"),  on the  Panamanian offshore  drilling  rig J.W.  McLEAN of
15,453 gross registered tons, 4,636  net registered tons and with a  length of
111.86m, a breadth of 64.01m and a  depth of 42.67m and Provisional Patent  of
Navigation  No. 25384-PEXT  (hereinafter  called the  "Rig"), duly  registered
under the laws and flag of the Republic of Panama, the detailed description of
which is hereinafter more particularly set forth.

                             W I T N E S S E T H :

WHEREAS

(A)    The Owner is the sole owner of  the whole of the offshore drilling  rig
       J.W.  McLEAN documented  under the  laws and  flag of  the Republic  of
       Panama.

(B)    By a Credit Agreement dated as of April  30, 1996 (as amended, restated
       or  supplemented  from time  to  time,  the  "Credit Agreement")  among
       Reading  & Bates  Corporation,  a  Delaware corporation,  as  guarantor
       ("Holdings"), the Owner,  as borrower, the banks party  thereto, Credit
       Lyonnais  New  York  Branch,  as  co-agent  (the  "Co-Agent")  and  the
       Mortgagee, as agent,  (the form of which Credit Agreement together with
       the form  of promissory  note of  the  Borrower attached  as Exhibit  B
       thereto  but  without the  remaining  exhibits  is attached  hereto  as
       Exhibit 1); it was agreed among other things that the Banks would  make
       available to the  Borrower a  reducing revolving  credit facility  (the
       "Facility") in the maximum aggregate  principal amount at any  one time
       outstanding   of   One    Hundred   Million   United   States   Dollars
       (U.S.$100,000,000), providing for the making of  Loans and the issuance
       of and participations in Letters of Credit as contemplated therein.

(C)    By an Amendment to  the Credit Agreement dated as of July  9, 1996 (the
       "Amendment"),  the  form  of which  Amendment  without  attachments  is
       attached hereto  as Exhibit  2, among  Holdings, the  Owner, the  banks
       party thereto  (collectively the "Banks"), the  Co-Agent and the Agent,
       it was  agreed among  other things  that the Banks  would increase  the
       amount available  to  the Owner  under  the  Facility to  an  aggregate
       amount at  any time  outstanding of  One Hundred  Forty Million  United
       States  Dollars (US$140,000,000).  As  required by Article 1515 Section
       3  of the Commercial  Code of  Panama, the  dates on which  payments of
       principal in respect  of the Loans are  due may be determined  from the
       provisions of the Credit Agreement including Section 3.03.

(D)    The  obligations  of  the  Owner  with  respect  to  the  Facility  are
       evidenced by  the  Credit Agreement  and  the other  Credit  Documents,
       including the  promissory notes of  the Owner payable  to the  order of
       the  respective Banks (each  a "Note"  and, collectively,  the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(E)    This Mortgage is  made for the benefit  of the Mortgagee to  secure (i)
       the  full and  prompt payment  when due  of  (x) the  principal of  and
       interest on  the  Notes  issued,  and  Loans  made,  under  the  Credit
       Agreement, and all  reimbursement obligations and Unpaid  Drawings with
       respect to the Letters  of Credit issued under the Credit Agreement and
       (y)  all   other  obligations  and   indebtedness  (including,  without
       limitation,  indemnities, Fees and  interest thereon)  of the  Owner to
       the Secured  Creditors (as hereinafter  defined), whether now  existing
       or hereafter incurred under,  arising out of or in  connection with the
       Credit  Agreement and  the other  Credit  Documents including,  without
       limitation, this Mortgage  and the  due performance  and compliance  by
       the Owner  with all of  the terms, conditions  and agreements contained
       in  the  Credit Agreement  and  the other  Credit  Documents including,
       without limitation,  this Mortgage; (ii)  any and all  sums advanced by
       the Mortgagee  in  order to  preserve  the Collateral  (as  hereinafter
       defined) or preserve  its security interest in the Collateral; (iii) in
       the event  of any proceeding for  the collection or enforcement  of any
       indebtedness, obligations, or  liabilities of the Owner referred  to in
       clause (i) above, after an Event of Default shall have occurred and  be
       continuing,  the reasonable  expenses of  the  Mortgagee of  re-taking,
       holding,  preparing for sale or  lease, selling  or otherwise disposing
       of or realizing on the Collateral, or of any exercise by the  Mortgagee
       of its  rights hereunder, together  with reasonable attorneys' fees  of
       counsel to the Mortgagee  and court costs; and (iv) all amounts paid by
       any  Indemnitee  as  to  which   such  Indemnitee  has  the   right  to
       reimbursement under Clause 13 of  this Mortgage (all such  obligations,
       liabilities, sums and  expenses referred to in clauses (i) through (iv)
       above being  collectively referred  to as  the "Obligations").   It  is
       acknowledged  and   agreed  that   the   "Obligations"  shall   include
       extensions of  credit of the types described above, whether outstanding
       on the date of this  Mortgage or extended from  time to time after  the
       date of this Mortgage.

(F)    This Indenture  of First Naval Mortgage,  which is entered into  by the
       Owner in consideration  of the Banks  entering into  the Amendment  and
       agreeing  to  make  the  Facility  available  to  the  Owner and  as  a
       condition  thereto  and  for  other  good  and  valuable  consideration
       provided by  the  Banks (the  sufficiency  of  which the  Owner  hereby
       acknowledges).

NOW,  THEREFORE, the appearing parties, each in the  name and on behalf of his
respective principal, state that  they hereby execute this Indenture  of First
Naval Mortgage pursuant to the following representations:

1.     REPRESENTATIONS AND COVENANTS

1.01   The Owner represents and covenants to the Mortgagee that:

       a.    The Owner is the  sole and  absolute owner of  the Rig under  the
             laws and flag of the Republic of Panama; 

       b.    The Owner,  as sole legal  and beneficial owner  of the Rig,  has
             received  and  presently   possesses  a  Provisional  Patent   of
             Navigation for the  Rig, duly issued  by the  Republic of  Panama
             under No. 25384-PEXT;

       c.    Neither the whole  nor any  share in the  Rig is  subject to  any
             Security  Interest  (as defined  herein)  (except  for  Permitted
             Liens (as defined herein) and the lien of this Mortgage);

       d.    the  Owner has  not sold  or transferred,  or  agreed to  sell or
             transfer, title to the Rig or any share therein;

       e.    the Owner is  a corporation duly organized  and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       f.    the  Owner  has full  power  and  authority  (i)  to execute  and
             deliver this Mortgage, (ii) to  mortgage the Rig as  security for
             the Obligations and (iii) to  comply with the provisions  of, and
             perform all its obligations under, this Mortgage;

       g.    the  Owner has  complied with  all  statutory and  other material
             requirements  relative   to  the   ownership,  registration   and
             operation of the Rig;

       h.    the  Owner  has  taken  all  necessary  action  to authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the legal,  valid  and  binding obligation  of  the
             Owner enforceable against the Owner in accordance  with its terms
             (except   to  the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency, moratorium  or other laws of  general
             application  relating   to  or  affecting   the  enforcement   of
             creditors' rights  as from  time to  time in  effect and  general
             equitable principles)  and when  preliminarily recorded with  the
             Public Registry  in Panama  through the  Panamanian Consulate  in
             New York, New  York will create  a legal,  valid and  enforceable
             first preferred  mortgage lien  on the  Rig subject  only to  the
             permanent  filing  of this  Mortgage  in the  Public  Registry in
             Panama within six  months of the date of the preliminary recorded
             filing;

       i.    the entry  into and  performance by  the Owner  of this  Mortgage
             does  not and  will  not during  the  Credit Facility  Period (as
             defined herein) violate  in any respect (i) any law or regulation
             of any  governmental or official  authority or body,  or (ii) any
             of  the  constitutive  documents  of   the  Owner  including  the
             Certificate of Incorporation or By-laws, as amended  from time to
             time,  or  (iii)  any  material   agreement,  contract  or  other
             undertaking to which  the Owner is  a party  or which is  binding
             upon the Owner or any of its assets;

       j.    all consents, licenses, approvals and  authorizations required in
             connection   with  the  entry  into,  performance,  validity  and
             enforceability   of   this   Mortgage   and   the    transactions
             contemplated  hereby and  thereby have  been obtained  and are in
             full force  and  effect and  will  be  so maintained  during  the
             Credit Facility Period;

       k.    save for such  registrations and filings  as are  referred to  in
             this Mortgage,  it is  not necessary for  the legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that it  or any document relating  thereto be  registered, filed,
             recorded or enrolled  with any court or authority in any relevant
             jurisdiction or that any stamp, registration or  similar taxes be
             paid on or in relation to this Mortgage;

       l.    the  Owner is  in compliance  with  all applicable  Environmental
             Laws (as defined herein) relating  to the  Rig, its operation and
             management;

       m.    the Owner  has obtained all  Environmental Approvals (as  defined
             herein) and is in compliance with all requests thereof;

       n.    no  Environmental  Claim (as  defined  herein) has  been  made or
             threatened against the Owner or otherwise in connection with  the
             Rig;

       o.    no   Environmental  Incident   (as  defined   herein)  which  has
             resulted, or which  could reasonably be expected to result, in an
             Environmental Claim in excess of US$200,000 has occurred; and

       p.    The  Owner  hereby affirms  as  its  representations all  of  the
             statements contained in the "WHEREAS" clauses of this Mortgage.

1.02   The representations and  warranties of the Owner set out in Clause 1.01
       shall survive the execution of this Mortgage and shall be deemed to  be
       repeated at  the time of  the making of  each Loan (as defined  herein)
       and at the time of the issuance of each Letter of Credit,  with respect
       to the  facts and circumstances existing at each  such time, as if made
       at each such time.

1.03   The  Mortgagee  represents  that  the  Banks  have  made  the  Facility
       available  to  the Owner,  as  evidenced  by,  inter  alia, the  Credit
       Agreement,  the Notes and the  Security Documents  (as defined herein),
       and accepts  the Mortgage constituted  by this instrument  upon the Rig
       as  security for  the  due and  prompt payment  and performance  of the
       obligations  of the  Owner  under the  Credit  Agreement and  the other
       Credit Documents.

1.04   Each of the contracting parties declares that  it is satisfied with the
       representations and covenants  made by the  other and  accepts them  as
       true;  and the  parties  mutually  acknowledge their  respective  legal
       status as  well  as the  authority  of  the persons  representing  them
       respectively in  this instrument to  sign the  same on behalf  of their
       respective principals.

2.     DEFINITIONS AND INTERPRETATION

2.01   In this Mortgage unless  the context otherwise requires,  the following
       expressions shall have the following meanings:

       "Agent" shall  have the same meaning for such term  as set forth in the
       Credit Agreement;

       "Amendment" means  the  Amendment  dated  as  of  July  9,  1996  among
       Holdings, the  Owner,  the Banks,  the  Co-Agent  and the  Agent  first
       referred to in Recital (C) hereto;

       "Bank"  means any lender  listed from time  to time  on Annex 1  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral Assignment of  Insurances" means the Collateral  Assignment
       of Insurances in respect of  the Rig executed or to be executed  by the
       Owner in favor of the Agent;

       "Commitment" shall have the same meaning for such  term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the Credit  Agreement, dated as  of April 30,
       1996,  among Holdings,  the  Owner, the  Banks,  the Co-Agent,  and the
       Agent, as amended  by the Amendment,  first referred to in  Recital (B)
       hereto, and as further amended,  restated or supplemented from  time to
       time;

       "Credit Documents" shall  have the meaning for  such term as set  forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no  Letters  of  Credit  remain  outstanding  and  the Unpaid  Drawings
       together with  interest, fees  and all  other obligations  are paid  in
       full;

       "Credit Party" shall have  the same meaning for such term  as set forth
       in the Credit Agreement;

       "Default  Rate"  shall   mean  the  rate  of  interest   calculated  in
       accordance with Section 1.07(b) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions or  authorization  required under  applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal  reports  prepared  by Holdings  or  any  of  its Subsidiaries
       solely  in the ordinary  course of business of  such entity  and not in
       response  to  any  third  party action  or  request  of  any  kind)  or
       proceedings relating in any way to any Environmental Law  or any permit
       issued,  or  any  approval  given,  under  any  such  Environmental Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by    any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release of  Environmentally
       Sensitive  Material   from  the  Rig,   (ii)  any  incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than  the Rig  and which involves  collision between  the Rig  and such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which  Environmentally Sensitive Material is  released from a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing and  the like,  into  or upon  any  land or  water or  air,  or
       otherwise entering into the environment);

       "Environmental   Laws"   means  all   applicable   laws,   regulations,
       conventions  and  agreements   whatsoever  relating  to  pollution   or
       protection of the  environment (including, without limitation,  the Oil
       Pollution  Act of 1990  (33 U.S.C.   2701 et  seq.), the Comprehensive
       Environmental Response,  Compensation, and  Liability Act  of 1980  (42
       U.S.C.  9601  et seq.), the Hazardous Materials Transportation Act (49
       U.S.C.   1801 et seq.), the  Resource Conservation and Recovery Act of
       1976 (42 U.S.C.   6901 et seq.),  the Clean Air Act (42  U.S.C.  7401
       et seq.), the Federal Water Pollution Control Act (33 U.S.C.  1251  et
       seq.) and the Toxic  Substances Control Act (15 U.S.C.   2601 et seq.)
       (all  of the  foregoing as  amended), and  any comparable  laws of  the
       individual States of  the United States of  America or any other  state
       or nation);

       "Fees" shall have the  same meaning for such  term as set forth in  the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation,  transformers or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous  waste,"  "restricted hazardous  waste,"  "toxic substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any applicable  Environmental Law;  and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect of the  Rig or otherwise by the Owner  (whether
       in the sole name  of the Owner or in the  joint names of the Owner  and
       the Agent)  and all  benefits thereof  (including claims of  whatsoever
       nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for such  term as  set
       forth in Section 1.08 of the Credit Agreement;

       "Letter of  Credit" shall have  the same meaning  for such term as  set
       forth in Section 2.01 of the Credit Agreement;

       "Loan(s)" shall  have the same  meaning for such  term as set forth  in
       the Credit Agreement;

       "Major Casualty" means any casualty  to the Rig in respect  whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means each promissory note of  the Owner referred to in  Recital
       (D) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil  Pollution Act 1990" means  the Oil Pollution  Act 1990 (33 U.S.C.
       2701 et seq.), as amended;

       "Other  Rigs"  means, individually  or  collectively, each  of  (i) the
       semi-submersible drilling rig JACK BATES owned  by the Owner documented
       under the laws and flag of  the United States of America with  Official
       Number 906283  of   19,928  gross  registered   tons  and  14,948   net
       registered tons;  (ii) the jack-up drilling rig D.  R. STEWART owned by
       Reading &  Bates Exploration Co.  ("R&B Exploration") documented  under
       the laws and flag of the United States of America with Official  Number
       626904 of  6,494 gross registered  tons and 5,834  net registered tons;
       (iii)  the   drilling  tender  W.D. KENT   owned  by  R&B   Exploration
       documented under  the laws  and flag  of the  United States of  America
       with Official  Number 583169 of  5,383 gross registered  tons and 4,185
       net registered tons;  (iv) the jack-up drilling rig RON TAPPMEYER owned
       by Reading & Bates (A)  Pty Ltd. documented under the laws  and flag of
       Australia with Official  Number 855213 of 11,455 gross  registered tons
       and 3,436 net  registered tons;  (v) the semi-submersible  drilling rig
       RIG 41 owned  by RB Drilling Co.  ("RB") documented under the  laws and
       flag of the Republic of  Panama with Patente Number 22365-95  of 10,078
       gross registered tons  and 3,024 net registered tons; (vi) the drilling
       tender CHARLEY GRAVES owned by  Reading and Bates Borneo  Drilling Co.,
       Ltd. documented under the laws and flag of the Republic of Panama  with
       Patente Number 6618-76 CH of 5,829 gross registered tons and  1,748 net
       registered tons; (vii) the offshore  drilling rig HARVEY H.  WARD owned
       by  HRB  Rig Corporation  documented  under the  laws  and flag  of the
       United States of  America with Official  Number 642693  of 4,121  gross
       registered  tons  and  3,079   net  registered  tons  and   (viii)  the
       Panamanian  flag rig SEILLEAN  to be acquired by  RB as contemplated by
       the Amendment;

       "Permitted Liens"  means: (1)  liens  incident to  expenses of  current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being contested in good  faith, provided
       such liens  are not in  excess of  U.S.$5,000,000.00, and if  in excess
       thereof, then the Owner shall, upon  the written request of the  Agent,
       provide a bond or other  security satisfactory to the Agent); (2) liens
       for master's and  crew's wages not yet  due and payable; (3)  liens for
       taxes, assessments,  governmental charges, fines  and penalties not  at
       the  time delinquent (unless  being contested  in good  faith, provided
       such liens are  not in excess  of U.S.$5,000,000.00,  and if in  excess
       thereof,  then the Owner shall, upon the  written request of the Agent,
       provide a bond or other security satisfactory  to the Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause 6  hereof (except that  no lien shall be  deemed
       not covered by insurance to the  extent insurance in force would  cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount approved  by  the Agent);  (6)  liens  arising pursuant  to  any
       judgment  or to  an  order of  attachment,  distraint or  similar legal
       process arising in connection with  legal proceedings, but only  if and
       so long as the execution  or other enforcement thereof is  not unstayed
       for more  than 30  consecutive days; (7)  any lien  for the payment  or
       discharge of which  provisions satisfactory to the Agent have been made
       as evidenced by the Agent's written consent to such lien; (8) any  lien
       in  favor of  the Banks;  and provided  that Permitted  Liens shall not
       include any liens  described in subclauses (1) through (7) above unless
       they:  (i)  are  subordinate to  the  lien  of  this  Mortgage or  (ii)
       constitute a  maritime lien  which would in  any event  be entitled  as
       such to priority  over the Mortgage  under the  United States  shipping
       laws or  other applicable laws  relating to the  Rig's trading pattern.
       Nothing herein shall be deemed a waiver of the priority preferred  lien
       status of this Mortgage;

       "Protection  and  indemnity risks"  means  the usual  risks  covered by
       protection   and  indemnity   associations   of  international   repute
       including the  proportion not  recoverable in  case of collision  under
       the ordinary running-down clause (unless such is  recoverable under the
       relevant hull and machinery coverage);

       "Required Banks"  shall have the meaning for such  term as set forth in
       the Credit Agreement;

       "Requisition  Compensation"  means all  moneys  or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means the  vessel described in  Recital (A)  hereto and  includes
       any share  or  interest  therein and  her  engines,  machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and  appurtenances whether  on board  or ashore  and whether
       now  owned or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors" shall mean the  Banks, the Letter of  Credit Issuer
       and the Agent under and as defined in the Credit Agreement;

       "Security Documents"  shall have the same meaning for  such term as set
       forth in the Restated Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or other security  interest or arrangement of  any kind
       whatsoever;

       "Taxes" shall have the same  meaning for such term as set forth  in the
       Credit Agreement;

       "Total Commitment" shall  have the same  meaning for such  term as  set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive, arranged,  agreed, or
       compromised total loss  of the Rig;  (b) the  requisition for title  or
       other compulsory acquisition  or forfeiture  of the Rig  otherwise than
       by  requisition for hire; (c)  the capture,  seizure, arrest, detention
       or confiscation of  the Rig by any  government or by persons  acting or
       purporting to  act  on  behalf of  any  government  unless the  Rig  be
       released from such capture, seizure, arrest or detention  within ninety
       (90) days after the occurrence thereof;

       "United States  Dollars" and  "US$" means  the lawful  currency of  the
       United States of America;

       "Unpaid Drawing"  shall have  the same  meaning  for such  term as  set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard form  of English  marine policy  by the  free  of capture  and
       seizure clause.

2.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall bear the same meanings when used in this Mortgage.

2.03   In this Mortgage:

       (a)   Clause  headings are inserted for convenience  only and shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the   context  otherwise  requires,  words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

3.     MORTGAGE

3.01   In order to secure the Obligations the Owner has granted, conveyed  and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the  Mortgagee,  its successors  and  assigns, in  accordance  with the
       provisions  of Chapter  V,  Title IV  of  Book Second  of  the Code  of
       Commerce  and   pertinent  provisions  of  the  Civil  Code  and  other
       legislation  of the  Republic  of Panama,  the whole  of  the Rig,  the
       detailed description of which is as follows:

             offshore drilling  rig J.W.  McLEAN; gross tonnage  approximately
             15,453; net tonnage  approximately 4,636;  length overall  111.86
             meters, breadth 64.01  meters; depth 42.67 meters; built  in 1974
             by  Bethlehem Steel  Corporation in  Beaumont, Texas;  radio call
             letters HP-8713;

       TO  HAVE AND  TO HOLD the  same unto the  Mortgagee, its successors and
       assigns forever, upon  the terms herein  set forth for  the enforcement
       of the Obligations.

       PROVIDED ONLY and  the condition of these presents is  such that if the
       Owner or its successors and assigns shall pay or cause to be  repaid to
       the Secured  Creditors and their  respective successors or assigns  the
       Obligations  as  and when  the same  shall  become due  and  payable in
       accordance  with the terms  of the Credit  Agreement and  this Mortgage
       and the Owner and  its successors and assigns shall  observe and comply
       with  the  covenants, terms  and  conditions  contained in  the  Credit
       Agreement  and  this Mortgage,  expressed or  implied to  be performed,
       observed or  complied with  by and  on the  part of the  Owner and  its
       successors  and assigns, then these  presents and  the rights hereunder
       shall cease, determine  and be void  and, in such event,  the Mortgagee
       agrees to furnish,  execute and record,  at the  expense of the  Owner,
       all such documents  as the Owner may   reasonably require  to discharge
       this Mortgage, otherwise to be and remain in full force and effect.

       Notwithstanding  anything to  the contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of  this Mortgage  and that  if any  provision  or part  thereof herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig  and none of the  Secured Creditors shall
       be under any  obligation of any kind  whatsoever in respect  thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

3.03   This Mortgage, when  it shall  have been  duly executed  and signed  on
       behalf  of the  parties, shall  be provisionally  recorded  through the
       Panamanian Consulate at New  York, New York and thereafter within three
       months permanently recorded in the Public Registry in Panama.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay   and  indemnify  the  Secured  Creditors  for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or other  moneys as  are stated  in this  Mortgage to  be
             payable by  the Owner to  or recoverable  from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs,  duties, fees, charges or other moneys referred to
             in Clause 4.01(a) from  the date on which  the relevant  expense,
             claim, liability,  loss, cost, duty,  fee, charge or other  money
             is  paid by  any  Secured Creditor  (both  before  and after  any
             relevant judgment) at the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing to  any Secured Creditor,  as the case  may be,  under this
             Mortgage and the Credit Agreement at the  times and in the manner
             specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Mortgagee as  a continuing  security for the  performance of  the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be prejudiced  or affected by  any of the other  Security
             Documents;

       (c)   the Mortgagee  shall not have  to wait for  the Agent to  enforce
             any  of  the  other  Security  Documents   before  enforcing  the
             security created by this Mortgage;

       (d)   no failure or  delay on the part  of the Mortgagee  in exercising
             any right, power, privilege  or remedy hereunder and no course of
             dealing  between Owner  and Mortgagee or  the Agent shall operate
             as a waiver thereof; nor shall any single or partial  exercise of
             any  right,  power, privilege  or remedy  hereunder  preclude any
             other or further  exercise thereof or  the exercise of  any other
             right, power  or privilege  hereunder.   The rights and  remedies
             herein  expressly provided  are cumulative  and not  exclusive of
             any  rights or remedies  which the Mortgagee  or the  Agent would
             otherwise have.  No notice to or demand on the Owner  in any case
             shall entitle  the Owner to any other or further notice or demand
             in similar or other circumstances or  constitute a waiver of  the
             rights of  the Mortgagee  or the  Agent to any  other or  further
             action in any circumstances without notice or demand; and

       (e)   any waiver by the Mortgagee  of any terms of this Mortgage or any
             consent given by the  Mortgagee under this Mortgage shall only be
             effective if  given in writing and then only  for the purpose and
             upon the terms for which it is given.

5.02   Any settlement or discharge  under this Mortgage between the  Mortgagee
       and  the Owner shall be conditional upon  no security or payment to the
       Secured  Parties or  any of  them by  the Credit  Parties or  any other
       person being avoided or set-aside or ordered  to be refunded or reduced
       by  virtue  of  any provision  or  enactment  relating  to  bankruptcy,
       insolvency,  administration or liquidation for  the time being in force
       and,  if  such  condition is  not  satisfied,  the  Mortgagee  shall be
       entitled  to  recover  from the  Owner  on  demand  the  value of  such
       security  or the amount of  any such  payment as if  such settlement or
       discharge had not occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security   hereby  constituted  shall  not  be  affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair,  affect or discharge such  rights and security,  in whole or
       in part,  including without limitation, and whether or  not known to or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:

       (a)   any waiver granted to or composition  with the Credit Parties  or
             any other person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the Credit  Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents or any other document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity  or   frustration   of   any
             obligations  of the Credit  Party or any  other person  under the
             Credit Agreement, any of  the other Credit Documents or any other
             document or security.

6.     INSURANCE

6.01   The  Owner covenants with the Mortgagee  throughout the Credit Facility
       Period that:

       (a)   The  Owner shall,  at its  own expense, when  and so  long as any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured, or cause  the Rig to be insured, in  lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             Protection  and  Indemnity Risks,  pollution  liability,  and War
             Risks),  in such form (including without  limitation, the form of
             the loss  payable clause and  the designation of named  assureds)
             and with  such  first  class insurance  companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably satisfactory to the Agent.   With respect to hull  and
             machinery/increased  value  insurance, including  war  risk,  the
             Owner shall  insure the Rig  and keep her  insured, or  cause the
             Rig to  be insured, for  an amount which is  at least  the agreed
             value  of the  Rig, and when  such amount is  aggregated with the
             total amount of such insurance coverage  on the Other Rigs,  such
             aggregate amount shall be  at least 110% of the Total Commitment.
             Such insurance shall  cover marine and  war risk perils,  on hull
             and machinery, with per  occurrence deductibles not in excess  of
             US$500,000 (such deductibles  not to apply  in the case  of Total
             Loss  of the Rig), and shall  be maintained in the broadest forms
             available  in the  American, British  and  Scandinavian insurance
             markets or in such  other major international markets  acceptable
             to  the  Mortgagee.    The Owner  shall  maintain  protection and
             indemnity  insurance, including war risk protection and indemnity
             coverage and coverage against  pollution liability, in an  amount
             not  less  than US$100,000,000  (or,  with  respect to  pollution
             liability coverage, such greater  amount as may be at least equal
             from  time  to  time  to  the  limitation  of  liability   amount
             applicable to  the Rig under the Oil Pollution  Act 1990 or other
             Environmental  Laws),   through   underwriters  or   associations
             acceptable to the  Mortgagee.  In  addition, the Owner  shall, at
             its  own  expense,  furnish  to the  Agent  a  mortgagee's single
             interest  policy providing coverage  which, when  aggregated with
             the  mortgagee's  interest insurance  furnished to  the  Agent in
             respect of  the Other Rigs,  shall be  in an  amount equal to  at
             least  110%  of  the   Total  Commitment  (or  in  lieu  of  such
             mortgagee's  interest insurance  Owner shall  cause the  hull and
             machinery/increased value  insurance  to  be endorsed  to  afford
             breach of warranty  coverage for the benefit of the Agent).  Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies for the benefit of the Agent  shall be maintained in the
             broadest  form   available   in   the   American,   British   and
             Scandinavian  markets   or  other  major   international  markets
             acceptable  to the  Agent through underwriters  acceptable to the
             Agent.   The  Rig shall not  operate in or  proceed into any area
             then excluded by trading  warranties under its marine or war risk
             policies (including protection and  indemnity) without satisfying
             the  conditions of the relevant policies  evidence of which shall
             be furnished to the Mortgagee.

       (b)   The  policy  or   policies  of  insurance  shall   be  issued  by
             responsible  underwriters  reasonably  acceptable  to  the Agent,
             shall  contain  conditions,  terms,   stipulations  and  insuring
             covenants satisfactory to  the Agent, and  shall be kept  in full
             force and effect by the  Owner so long as the  Security Documents
             and  the Secured  Indebtedness shall  be  outstanding.   All such
             policies, binders and other interim insurance  contracts shall be
             executed and issued in  the name of the  Owner and shall, to  the
             extent  required herein, provide that  the Mortgagee shall be the
             loss payee for distribution  by it to  itself, the Banks and  the
             Owner  as their interests  may appear, and  shall provide  for at
             least  ten days' prior notice to be given to the Mortgagee by the
             underwriters  or association in the event  of cancellation or the
             failure  of the  Owner to  pay any  premium or  call which  would
             suspend coverage  under the  policy  or the  payment  of a  claim
             thereunder.   The Mortgagee and  the Banks shall be  named as co-
             assureds  on  all  such  policies and  insurance  contracts,  but
             without liability of the  Mortgagee, or the Banks for premiums or
             calls.  Complete certified  copies of all such policies,  binders
             and other  interim insurance contracts shall  be delivered to the
             Mortgagee.  Originals shall  also be provided upon the request of
             the  Mortgagee.    The  Owner  shall  furnish  to  the  Mortgagee
             annually a detailed report signed by  a firm of marine  insurance
             brokers  satisfactory  to  the  Mortgagee  as  to  the  insurance
             maintained in respect of the  Rig, as to their opinion as  to the
             adequacy thereof  and as  to compliance  with  the provisions  of
             this Clause 6.01.

             Unless  otherwise required  by  the Mortgagee,  by notice  to the
             underwriters, although the following insurance is  payable to the
             Mortgagee, (i)  any loss  under  any insurance  on  the Rig  with
             respect to  Protection and Indemnity  Risks may be paid  directly
             to the  Owner to  reimburse it  for any  loss, damage  or expense
             incurred by it and covered by such insurance or  to the person to
             whom any  liability covered by such  insurance has  been incurred
             and (ii) in the  case of any loss  (other than a loss covered  by
             (i) above  or by  the  next following  paragraph  of this  Clause
             6.01(b)) under any  insurance with  respect to the  Rig involving
             any damage to the  Rig, the underwriters  may pay direct for  the
             repair, salvage or other  charges involved or, if the Owner shall
             have first  fully repaired  the  damage or  paid  the salvage  or
             other  charges,  may pay  the  Owner  as reimbursement  therefor;
             provided,  however,  that  if  such  damage   involves  a  before
             deductible  loss in  excess of US$1,000,000.00  (One Million U.S.
             Dollars),  the underwriters  shall not make  such payment without
             first  obtaining  the written  consent thereto  of  the Mortgagee
             (which consent shall  not be  unreasonably withheld).   Any  loss
             covered  by this  paragraph which  is paid  to the  Mortgagee but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the Mortgagee  to, or as directed by, the  Owner and all other
             payments  to the Mortgagee  of losses  covered by  this paragraph
             shall  be applied  by  the Mortgagee  in  accordance with  Clause
             10.01.

             In  the event of  a Total Loss,  all insurance  payments therefor
             shall be paid  to the Mortgagee.  The Owner  shall not declare or
             agree with the underwriters that the Rig  is a Total Loss without
             the prior written consent of the Mortgagee.

       (c)   In  the event  of a  Total Loss of  the Rig,  the Mortgagee shall
             retain out of the  insurance payments received on account of such
             loss any  sum  or sums  that  shall be  or  become owing  to  the
             Secured  Creditors under  the Security Documents,  whether or not
             the  same shall be  then due and  payable, together  with accrued
             interest and the cost, if any,  of collecting the insurance,  and
             pay the balance as provided in Clause 10.

       (d)   The Owner shall  comply with and satisfy all of the provisions of
             any applicable law, regulation, proclamation  or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will maintain,  or cause to be  maintained, all  certificates
             or other evidence of financial responsibility  as may be required
             by  any such law, regulation,  proclamation or order with respect
             to the trade in which the Rig from time to time is engaged.

       (e)   The Owner  shall renew all such insurances  as they expire and so
             as  to  insure  that  there  is  no  gap  in  coverage, keep  the
             Mortgagee advised of  the progress  of such  renewals, and  shall
             provide evidence of such renewal in  writing to the Mortgagee  as
             and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or other  sums  payable  in  respect of  all  such
             insurances and produce  all relevant receipts when so required by
             the Mortgagee.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments  of   insurance   aforesaid  relative   to  the   Rig
             (including any  warranties, express or implied,  therein) without
             first  obtaining the  consent to such  employment of the insurers
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants with  the  Mortgagee that  throughout  the Credit
       Facility Period the Owner will:

       (a)   keep the Rig  documented in its name as  a Panamanian flag vessel
             and  do or allow  to be done  nothing whereby  such documentation
             may be forfeited or imperilled;

       (b)   not  without the  previous consent  in writing  of the  Mortgagee
             except as otherwise contemplated by the  Credit Agreement, change
             the  name of  the Rig or  make any modification  to the Rig which
             would  materially   alter  the  structure,  type  or  performance
             characteristics of  the Rig and which would materially reduce the
             value of the Rig;

       (c)   keep the Rig in a  good and efficient state of repair  consistent
             with first-class ship-ownership and management  practice employed
             by owners of drilling rigs of  similar size and type and so as to
             maintain  her   present  class  (namely   +A1  Column  Stabilized
             Drilling Unit) at Det Norske Veritas free  of recommendations and
             qualifications  and  change  of  class, save  those  approved  in
             writing by the Mortgagee and so as to comply  with all applicable
             laws,  treaties and  conventions of  the Republic  of  Panama and
             other applicable jurisdictions, and rules and regulations  issued
             thereunder, and have on  board as and when required thereby valid
             certificates showing compliance therewith;

       (d)   procure that all repairs to or  replacement of any damaged,  worn
             or  lost parts  or  equipment in  such  manner  (both as  regards
             workmanship  and  quality  of  materials) as  to  not  materially
             diminish the  value of  the Rig and  not to  remove any  material
             part of,  or item of equipment  owned by the Owner  installed on,
             the Rig  unless  (i) the  part or  item so  removed is  forthwith
             replaced by  a  suitable  part  or  item which  is  in  the  same
             condition as or better condition than  the part or item  removed,
             is free from any Security  Interest (other than Permitted  Liens)
             in favor  of any person other  than the Mortgagee and  becomes on
             installation on the Rig the property of the  Owner and subject to
             the security constituted  by this  Mortgage or  (ii) the  removal
             will not materially diminish the value of the Rig;

       (e)   submit the  Rig to  such periodical or  other surveys  as may  be
             required  for  classification  purposes  and if  so  required  to
             supply to the  Mortgagee copies of  all survey reports  issued in
             respect thereof;

       (f)   permit  the Mortgagee  by independent surveyors  to board the Rig
             at all  reasonable  times  and  upon reasonable  notice  for  the
             purpose  of  inspecting  her  condition  or  for  the  purpose of
             satisfying themselves in regard  to proposed or executed  repairs
             and  to  afford  all  proper  facilities  for  such  inspections,
             provided that unless an  Event of Default shall have occurred and
             be continuing,  the cost of any such inspection  shall be for the
             account of the Mortgagee;

       (g)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in  respect of  the Rig  and  all other  expenses
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig pursuant  to  legal process,  or  in  the event  of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (h)   not employ  the  Rig or  allow  her employment  in any  trade  or
             business  which  is  unlawful under  the  laws  of  any  relevant
             jurisdiction  or in  carrying illicit  or prohibited  goods or in
             any manner whatsoever which can reasonably be expected to  render
             her liable  to destruction, seizure  or confiscation  and in  the
             event  of hostilities in  any part  of the world  (whether war be
             declared or not) not employ  the Rig or suffer her  employment in
             carrying any contraband  goods or to enter  or trade to  any zone
             which  is declared  a war  zone by any  government or  by the War
             Risks insurers of the Rig unless  there shall have been  effected
             by  the  Owner  (at its  expense)  such  special,  additional  or
             modified  insurance  cover   as  the  Mortgagee  may   reasonably
             require;

       (i)   promptly furnish to the  Mortgagee all such information as it may
             from  time to  time require  regarding the  Rig, her  employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages  and, upon the Mortgagee's request in writing, copies of
             all charters and  other contracts for her employment or otherwise
             howsoever concerning her;

       (j)   notify the  Mortgagee forthwith by telecopy  thereafter confirmed
             by letter of:

             (i)  any  casualty  to  the Rig which is  or is likely to be a
                  Major Casualty; and

             (ii) any occurrence in consequence whereof  the Rig has become
                  or  is, by the  passing of  time or otherwise,  likely to
                  become a Total Loss; and

            (iii) any requirement or recommendation made  by any insurer or
                  classification  society  or  by  any competent  authority
                  which is not complied with; and

             (iv) any  arrest of  the  Rig  or  the exercise  or  purported
                  exercise of any lien on the Rig or any requisition of the
                  Rig for hire; and

             (v)  any  intended  dry  docking  of  the Rig, as to which the
                  Owner shall give  the  Mortgagee  30 days  prior  notice,
                  provided, that in the  event of any emergency dry docking
                  of  the  Rig,  the  Owner  shall  immediately  notify the
                  Mortgagee; and

             (vi) any intended deactivation or  lay-up  of  the Rig  (other
                  than for normal  periods of inactivity  between contracts
                  for the Rig during which periods the Rid remains  manned)
                  and obtain the Mortgagee's prior written consent;

       (k)   keep  proper books of account  in respect  of the Rig  and as and
             when the  Mortgagee may  so  reasonably require  make such  books
             available for inspection on behalf  of the Mortgagee and  furnish
             satisfactory  evidence  that the  wages  and  allotments and  the
             insurance  of the master  and crew are  being regularly  paid and
             that all deductions  from crew's wages  in respect of  tax and/or
             social  security liability  are being properly  accounted for and
             that the master has no claim  for disbursements other than  those
             incurred by him in the  ordinary course of trading on  the voyage
             then in progress;

       (l)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement which  apply to  the Rig and  the Owner, and  in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (m)   not  without the  previous consent  in writing  of  the Mortgagee
             (such consent not to  be unreasonably withheld), put the Rig into
             the possession of  any person for the purpose  of work being done
             upon her in an amount  exceeding or likely to exceed  Two Million
             Five  Hundred  United States  Dollars  (US$2,500,000.00) (or  the
             equivalent in  any other currency)  unless (i) such person  shall
             first have given  to the Mortgagee  and in terms  satisfactory to
             it a written undertaking not  to exercise any lien on the Rig for
             the cost of such work or otherwise or (ii) the cost of  such work
             shall be fully covered by applicable insurance;

       (n)   comply with  and satisfy  all the  provisions of  applicable laws
             and  regulations  of  the Republic  of  Panama,  as  at  any time
             amended, in order  to establish and  maintain this Mortgage  as a
             first priority  naval mortgage thereunder  upon the Rig and  upon
             all  renewals, improvements  and replacements  made in  or to the
             same, and promptly to furnish to the  Mortgagee from time to time
             such proofs  as the Mortgagee  may request  for its  satisfaction
             with respect to the compliance by  the Owner with the  provisions
             of this  sub-clause, including, appropriate  certificates of  the
             Public  Registry  showing  that  this  Mortgage   has  been  duly
             registered and  filed and  is a first  and absolute  lien on  the
             Rig;

       (o)   place,  and  use due  diligence to  retain, a  properly certified
             copy of this Mortgage on  board the Rig with her papers and cause
             such  certified copy of this Mortgage to  be exhibited to any and
             all persons having  business with the  Rig which might  give rise
             to  any  lien thereon  other than  a  lien for  crew's  wages and
             salvage and to any  representative of the Mortgagee on demand and
             to  place and keep prominently displayed in the chart room and in
             the master's  cabin of the Rig  a framed printed  notice in plain
             type  in English  of  such size  that  the  paragraph of  reading
             matter  shall cover  a space  not less than  6 inches  wide and 9
             inches high reading as follows:

                                         "NOTICE OF MORTGAGE

                  This Rig  is subject to an Indenture of First Naval Mortgage
             in  favor of CHRISTIANIA  BANK OG KREDITKASSE,  as Agent  for the
             Banks   defined  in   said  Mortgage,  in   conformity  with  the
             provisions of Chapter  V, Title IV of Book Second  of the Code of
             Commerce,  and the  pertinent provisions  of the  Civil  Code and
             other legislation  of the Republic of Panama.  Under the terms of
             said Mortgage  neither the  owner, any  charterer, the  Master of
             the  Rig nor  any other  person shall  have the  right, power  or
             authority to create,  incur or permit to  be placed upon the  Rig
             any other  lien whatsoever  other than  for current crew's  wages
             and  salvage and Permitted Liens (as that term is defined in said
             Mortgage)."

       (p)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (q)   notify the Mortgagee forthwith upon:

             (i)  any  Environmental Claim which  could reasonably be expected
                  to result in damages in  excess of US$200,000 being or  made
                  against  the Owner, or otherwise in connection with the Rig;
                  or

             (ii) any   Environmental   Incident   occurring,  and   keep  the
                  Mortgagee advised, in  writing on  such  regular  basis  and
                  in  such detail  as the  Mortgagee  shall  require,  of  the
                  Owner's   response  to   such    Environmental   Claim    or
                  Environmental Incident.

       (r)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by  the  Credit Agreement)  without  the written  consent  of the
             Mortgagee  having  first  been  obtained, and  any  such  written
             consent to any one such sale,  mortgage or transfer shall not  be
             construed to be a  waiver of this provision  with respect to  any
             subsequent proposed sale, mortgage or  transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the  lien it creates.   The Owner shall  not charter
             the  Rig to, or permit the Rig  to serve under any contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or "specially  designated national"
             of a "designated foreign country," in  the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury  Department, 31 C.F.R. Parts  500 and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity"  in  the Libyan
             Sanctions Regulations of  the United States  Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity  of the Government of  Iraq" or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified  at 31 C.F.R.  Part 575,  as amended, all  within the
             meaning    of   said   Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters  or enter any Cuban port for  any purpose or engage in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision  of   the  Iranian   Transactions
             Regulations, 31  C.F.R. Part 560,  as amended, the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction or violation  would (i)  expose the Mortgagee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (s)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to  law   (except  where  the  failure  to  operate  in
             compliance with any law  would not have a material adverse effect
             on the Owner, the  Rig or the lien  of this Mortgage), shall  not
             abandon the  Rig in a  foreign port and shall  not engage  in any
             unlawful trade or violate  any law or carry any  cargo that shall
             expose the Rig to forfeiture or capture.

8.     PROTECTION OF SECURITY

8.01   The Mortgagee shall  without prejudice to  its other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at any time and as often as may be necessary  (but unless an
       Event of  Default shall  have  occurred and  be  continuing with  prior
       written  notice to the Owner) to take any such  action as it may in the
       reasonable  exercise of  its discretion  think fit  for the  purpose of
       protecting or  maintaining the  security created  by this Mortgage  and
       the other Credit Documents (including, without  limitation, such action
       as  is  referred  to  in  Clause 8.02)  and  each  and  every  expense,
       liability,  or loss  (including,  without limitation,  reasonable legal
       fees)  so incurred by the Secured  Creditors in or about the protection
       or  maintenance  of the  said security  together with  interest payable
       thereon  under Clause 4.01(b) shall be repayable  to it by the Owner on
       demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the  Owner does not  comply in  any material respect  with the
             provisions  of Clause 6  or any  of them  the Mortgagee  shall be
             entitled  (but not bound) to  effect or to  replace and renew and
             thereafter to maintain the Insurances in  such manner it, in  its
             discretion,  may think  fit  and to  require  that all  policies,
             contracts   and  other   records  relating   to   the  Insurances
             (including details of  any correspondence concerning  outstanding
             claims) be forthwith delivered to  such brokers as the  Mortgagee
             may  nominate  and,  upon  the  direction  of  the  Mortgagee  to
             collect,  recover, compromise  and give a  good discharge for all
             claims   then  outstanding  or   thereafter  arising   under  the
             Insurances or  any  of them  and to  take over  or institute  (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection   therewith   as   the  Mortgagee   in   its  absolute
             discretion, may think fit  and to permit the brokers through whom
             the  collection or  recovery  is  effected  to charge  the  usual
             brokerage therefor;

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  or 7.01(f)  the  Mortgagee shall  be  entitled (but  not
             bound) to  arrange for  the carrying out  of such  repairs to  or
             surveys of the Rig as it deems expedient or necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) the Mortgagee  shall be entitled  (but not bound)  to pay
             and  discharge all  such debts, damages  and liabilities  and all
             such tolls, dues, taxes,  assessments, charges, fines,  penalties
             and other outgoings as are therein  mentioned and/or to take  any
             such measures as it  deems expedient or necessary for the purpose
             of securing the release of the Rig.

9.     ENFORCEABILITY AND MORTGAGEE'S POWERS

9.01   Upon  the happening  of any of  the Events of  Default specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in  any jurisdiction to the effect that an Event of Default
       has occurred (and whether prior to or after the  Mortgagee or the Banks
       having  served on  the  Owner any  such  notice as  is  referred to  in
       Section  9 of the  Credit Agreement) the  security constituted  by this
       Mortgage shall become immediately  enforceable and the Mortgagee  shall
       be entitled,  as  and when  it  may  see fit,  to  put into  force  and
       exercise all  or any of the powers possessed by  it as mortgagee of the
       Rig or otherwise and in particular:

       (a)   to  exercise  all the  rights  and  remedies in  foreclosure  and
             otherwise  given to  mortgagees by  the laws  of the  Republic of
             Panama or other applicable laws;

       (b)   to take possession of  the Rig whether actually or constructively
             and/or otherwise to take control of the Rig  wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon demand  to surrender the same to the Mortgagee
             without legal process  and without liability of the Mortgagee for
             any  losses or  damages incurred  thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Mortgagee;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure that the Mortgagee collect, recover,  compromise and give
             good discharge for  any and all moneys or  claims for moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection  or recovery is effected to charge the usual brokerage
             therefor;

       (e)   to take  over or institute  (if necessary  using the name  of the
             Owner)  all such  proceedings  in connection  with  the Rig,  the
             Insurances, or any Requisition  Compensation as the Mortgagee  in
             its  absolute discretion  thinks fit and  to discharge, compound,
             release or compromise claims  against the Owner in respect of the
             Rig which have  given or may give  rise to any charge or  lien on
             the  Rig  or  which are  or  may  be  enforceable  by proceedings
             against the Rig;

       (f)   to  sell  the Rig  or any  share  therein with  or  without prior
             notice to the Owner  free from any  claim of or  by the Owner  of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some  or all of the purchase  price be deferred) as the Mortgagee
             in its absolute discretion may  determine with power to  postpone
             any such sale,  without being answerable for any  loss occasioned
             by  such  sale or  resulting  from  postponement thereof,  and/or
             itself to purchase the Rig  at any such public auction and to set
             off  the  purchase  price  against  all   or  any  part  of   the
             Obligations,  subject to  notice  of  sale  being  given  by  the
             Mortgagee to the  Owner and other  mortgagees of record,  if any,
             by  airmail,  postage  pre-paid  and  by publication  once  in  a
             newspaper  of general circulation in the City of Panama, Republic
             of Panama, not less than twenty (20)  calendar days in advance of
             the sale, to satisfy  the requirement of notice of sale contained
             in Article  1527 of  the Panama  Code of  Commerce.   Such notice
             shall be necessary only in respect of the initial date of sale;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and for such period as the  Mortgagee in its absolute  discretion
             deems  expedient  and for  the purposes  aforesaid  the Mortgagee
             shall  be  entitled  to do  all  acts  and  things  incidental or
             conducive   thereto  and   in  particular  to   enter  into  such
             arrangements respecting the  Rig, and the  insurance, management,
             maintenance, repair,  classification, chartering and   employment
             of the Rig, in  all respects as if  the Mortgagee were the  owner
             of  the Rig and  without being responsible  for any  loss thereby
             incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as may  be incurred  by  the Mortgagee  in  or about  the
             exercise   of   the  power   vested   in   the  Mortgagee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or loss  incurred by the Mortgagee in or about
             or  incidental  to  the exercise  by  it  of  any of  the  powers
             aforesaid.

9.02   The Mortgagee  shall not  be  obliged to  make any  enquiry  as to  the
       nature  or sufficiency  of  any  payment  received  by  it  under  this
       Mortgage or to make  any claim, take any  action or enforce any  rights
       and benefits  assigned to  the Mortgagee by  this Mortgage or  to which
       the Mortgagee may at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates and  advisers shall  be liable  for any  expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with the  exercise  or purported  exercise  of any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Mortgagee shall  not by reason of the taking  possession of the Rig
       be  liable to account as mortgagee-in-possession or for anything except
       actual  receipts or be liable for any  loss upon realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any sale  of the Rig  or any share  therein by  the Mortgagee the
       purchaser shall not be bound to see or enquire whether  the Mortgagee's
       power of sale has  arisen in the manner  provided in this Mortgage  and
       the  sale shall be deemed  to be within the power  of the Mortgagee and
       the receipt of the Mortgagee for  the purchase money shall  effectively
       discharge the purchaser who  shall not be concerned with the  manner of
       application  of  the  proceeds of  sale  or  be in  any  way answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All moneys  received by  the Mortgagee  or any Secured  Creditor,
             including, without limitation, in respect of  sale of the Rig  or
             any part thereof, in  respect of  recovery under the  Insurances,
             or  in respect of Requisition  Compensation, shall  be applied in
             the following manner:

             (i)  first, to  the payment of all amounts owing the Mortgagee of
                  the type described in clauses (ii) and (iii) of Recital (E);

             (ii)    second, to the extent moneys remain after the application
                     pursuant to the preceding clause (i),  an amount equal to
                     the outstanding Obligations shall be  paid to the Secured
                     Creditors  as  provided  in  Clause 10.01(c),  with  each
                     Secured  Creditor  receiving  an  amount  equal  to  such
                     Obligations  held  by   it  or,   if  the  proceeds   are
                     insufficient to pay in full all such Obligations, its Pro
                     Rata Share (as defined below) of the amount remaining  to
                     be distributed; and

             (iii)   third, to the extent moneys  remain after the application
                     pursuant  to  the  preceding clauses  (i)  and  (ii), and
                     following  the termination of  this Mortgage  pursuant to
                     Clause 3.01, any  surplus then remaining shall be paid to
                     the Owner, subject, however, to  the rights of the holder
                     of any  then  existing Lien  of which  the Mortgagee  has
                     actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount of such Obligations  owing to or held by  such
             Secured  Creditor  and  the denominator  of  which  is  the  then
             outstanding amount  of  all such  Obligations.   For purposes  of
             determining  the  amount payable  to each  Secured  Creditor, the
             Mortgagee shall be entitled to  request each Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed to  it  and shall  be  entitled to  reply  upon the  amounts
             stated therein in making such distribution.

       (c)   All  payments required to be made  to Secured Creditors hereunder
             shall be  made to the  Agent under  the Credit Agreement  for the
             account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01, the  Mortgagee shall be entitled to reply upon
             (i)  the Agent under  the Credit Agreement  and (ii)  the Secured
             Creditors for  a determination (which the  Agent and each Secured
             Creditor,  by their acceptance of  the benefits  of this Mortgage
             shall be obligated to provide upon  request of the Mortgagee)  of
             the  outstanding  Obligations  owed  to  the  Secured  Creditors.
             Unless it  has  actual knowledge  (including  by way  of  written
             notice from a Secured  Creditor) to the contrary, the Agent under
             the Credit Agreement, in  furnishing information pursuant to  the
             preceding  sentence,  and the  Mortgagee,  in  acting  hereunder,
             shall be entitled  to assume that  (x) no obligations  other than
             principal, interest and regularly accruing fees  are owing to any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Mortgagee in its absolute discretion may require for:

       (a)   perfecting or protecting the  security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting any of the  rights of the Mortgagee  and
             the Agent under this Mortgage; or

       (c)   ensuring that the security  constituted by this Mortgage and  the
             covenants and obligations of the Owner under this Mortgage  shall
             inure to the benefit  of any transferee, successor or assignee of
             the Mortgagee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Mortgagee under this Mortgage,

       in  any such case, forthwith  upon demand  by the Mortgagee  and at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The  Owner, by way  of security and in  order to more  fully secure the
       performance of the Obligations under this  Mortgage, hereby irrevocably
       appoints  the Mortgagee as its attorney for  the duration of the Credit
       Facility Period for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in  its name all documents which  the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on behalf  of  the  Mortgagee until  this
             Mortgage  shall have become  immediately enforceable  pursuant to
             Clause 9.01; and

       (b)   executing,   signing,   perfecting,  doing   and   (if  required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise  of such power as is referred to  in Clause 12.01(a) by or
       on behalf of the  Mortgagee shall not put  any person dealing with  the
       Mortgagee upon  any enquiry  as  to whether  this  Mortgage has  become
       enforceable  nor shall  such person  be in  any way affected  by notice
       that this Mortgage has not become enforceable and, in relation  to both
       Clauses 12.01(a) and  12.01(b), the exercise by  the Mortgagee  of such
       power  shall be  conclusive evidence  as against  third parties  of its
       right to exercise the same.

13.    INDEMNITIES

13.01  The Owner will  indemnify and save  harmless the Secured  Creditors and
       each  agent or attorney  appointed under or  pursuant to  this Mortgage
       (each an "Indemnitee") from and against  any and all expenses,  claims,
       liabilities, losses, taxes, costs,  duties, fees and charges  suffered,
       incurred or  made by such  Secured Creditors or such  agent or attorney
       in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in  the  preservation or  enforcement of  the  Mortgagee's rights
             under this Mortgage; or

       (c)   on  the release  of the  Rig from  the security  created by  this
             Mortgage,

       and the Secured Creditors  and each such  agent or attorney may  retain
       and  pay all sums  in respect of  the same out  of money received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by a  Secured Creditor or such  agent or attorney shall  be recoverable
       on a full indemnity basis.

13.02  Without limiting the  foregoing Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees,  attorneys and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of them, by reason  of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including wrongful death) or  property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;  (c)   any  Environmental  Claim  brought   or
       threatened,  or  settlement reached;  or  (d)  any  violation of  laws,
       orders, regulations, requirements or demands of government  authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable  law or regulation, and whether  pursuant to a
       judgment being made or  registered against the Owner or the liquidation
       of  the Owner  or  for  any  other  reason, any  payment  under  or  in
       connection with the Credit  Agreement or this Mortgage is made or fails
       to be satisfied in  a currency (the "payment currency") other  than the
       currency  in which such payment is due under or in connection with this
       Mortgage (the  "contractual currency"),  then  to the  extent that  the
       amount of  such  payment  actually  received  by  the  Mortgagee,  when
       converted into the contractual  currency at the rate of exchange, falls
       short of the amount due under or in connection  with this Mortgage, the
       Owner, as a  separate and  independent obligation, shall  indemnify and
       hold harmless the Mortgagee against the amount of such  shortfall.  For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which the Mortgagee is able on  the date of such payment (or,  if it
       is  not  practicable  for  the Mortgagee  to  purchase  the contractual
       currency with the payment currency on the date of  such payment, at the
       rate  of  exchange  as  soon  afterwards  as  is  practicable  for  the
       Mortgagee to  do so)  to  purchase the  contractual  currency with  the
       payment  currency and  shall take  into account  any premium  and other
       costs of exchange with respect thereto.

14.    EXPENSES

14.01  The Owner  shall pay to  the Mortgagee  on demand  all costs, fees  and
       expenses, including, but  not limited to,  legal fees and  expenses and
       valuation fees and  Taxes thereon incurred  by any Secured  Creditor or
       for which any Secured Creditor may become liable in connection with:

       (a)   the  negotiation,   preparation  and  execution  of   the  Credit
             Agreement  and  the other  Credit  Documents  (or  any of  them);
             and/or

       (b)   the preserving  or  enforcing of,  or attempting  to preserve  or
             enforce,  any of  its rights  under the  Credit Agreement  or the
             other Credit Documents (or any of them).

14.02  The  Owner shall  pay to  the Mortgagee on  demand all  costs, fees and
       expenses (including, but not limited to,  legal fees and expenses)  and
       Taxes thereon incurred by any Secured Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the Credit Agreement or  the other Credit Documents  (or
             any  of  them) requested  by  the Owner,  necessary  or advisable
             under  applicable  law  or relating  to  the  syndication  of the
             Credit  Facility,   or  initiated   during  the  occurrence   and
             continuation of an Event of Default; and/or

       (b)   any consent or waiver  required from the Mortgagee in relation to
             the Credit Agreement  and the other  Credit Documents (or  any of
             them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties and  Taxes to which  the Credit Agreement  and the  other Credit
       Documents (or  any of  them)  may be  subject or  give  rise and  shall
       indemnify the Mortgagee on  demand against any and all liabilities with
       respect to or  resulting from any delay or omission  on the part of the
       Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices required to be given to the Mortgagee shall be made to  the
       following address:

                           Christiania Bank og Kreditkasse, New York Branch
                           11 West 42nd Street
                           7th Floor
                           New York, New York  10036
                           Attention:  Loan Administration
                           Telephone:  (212) 827-4800
                           Telefax:    (212) 827-4888

       All other  notices  shall be  made to  the  addresses provided  for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This Mortgage shall be binding  upon and shall inure to the  benefit of
       the Secured Creditors and their respective  transferees, successors and
       permitted assigns,  and references  in  this Mortgage  to  any of  them
       shall be construed accordingly.

16.02  The Owner  may not assign  or transfer  all or any  part of  its rights
       and/or obligations under this Mortgage.

16.03  Pursuant  to Section 12.16 of  the Credit Agreement,  each Bank has the
       right  to  assign or  transfer all  or any  part  of its  rights and/or
       obligations under  the Credit Agreement on  the terms therein provided.
       The  Mortgagee  shall notify  the  Owner  promptly  following any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount  of this  Mortgage is  One Hundred  Forty Million  US
       Dollars (US$140,000,000) of principal plus  interest, fees, commissions
       and  performance of mortgage  covenants.  The  discharge amount  is the
       same as the total amount.

18.    WAIVER; AMENDMENT

18.01  None  of the  terms  and conditions  of this  Mortgage may  be changed,
       waived, modified or varied in any  manner whatsoever unless in  writing
       duly signed by the Owner  and the Mortgagee (with the consent of either
       the Required Banks  or, to the extent required by  Section 12.12 of the
       Credit Agreement,  all  of the  Banks).   No  amendment  to the  Credit
       Agreement  affects  the  rights   and  obligations  of  the   Mortgagee
       hereunder shall  be  effective without  the  consent of  the  Mortgagee
       thereto.

19.    MISCELLANEOUS

19.01  This Mortgage shall be governed by the laws of the Republic of Panama.

19.02  If at any time  any one or more  of the provisions in this  Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability  of the
       remaining provisions of this Mortgage shall not  be in any way affected
       or impaired thereby.

19.03  The  Mortgagee, at  any time  and from  time to  time, may  delegate by
       power of attorney  or in any other manner to  any person or persons all
       or any of  the powers, authorities  and discretions which  are for  the
       time  being  exercisable  by  the  Mortgagee  under  this  Mortgage  in
       relation to the Rig.   Any such delegation may be made  upon such terms
       and subject to such  regulations as the Mortgagee  may think fit.   The
       Mortgagee shall not be  in any way liable  or responsible to the  Owner
       for any  loss or  damage arising  from any  act,  default, omission  or
       misconduct on the part of any such delegate.

19.04  The  appearing parties  hereby confer  a special  power of  attorney on
       Benedetti &  Benedetti, lawyers of  Panama, Republic  of Panama  and/or
       any partners in the firm  authorizing such firm or any such  partner to
       take  all necessary  steps  to record  this  Indenture  of First  Naval
       Mortgage in  the appropriate registries of  the City of Panama,  and to
       substitute this Power of Attorney herein granted.

19.05  A  certification or  determination by  the Mortgagee  as to  any matter
       provided for in this  Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.06  The Mortgagee  declares  that  it accepts  the  naval  mortgage  hereby
       created under the terms above set forth.

20.    JURISDICTION

20.01  The  Owner agrees that  the Mortgagee shall have  the liberty but shall
       not  be obliged to take any proceedings in the courts of any country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose  of any proceedings for such enforcement  the Owner
       hereby submits to the jurisdiction  of the courts of any country of the
       choice of the Mortgagee.

20.02  Without  prejudice to  the generality  of  Clause 20.01,  the Mortgagee
       shall  have the  right to  arrest and  take action  against the  Rig at
       whatever place the Rig  shall be found lying and for the purpose of any
       action  which the  Mortgagee  may  bring  before  the  courts  of  such
       jurisdiction  or other judicial  authority and for  the purpose  of any
       action  which  the  Mortgagee may  bring  against  the  Rig,  any writ,
       notice,  judgment or  other  legal process  or  documents may  (without
       prejudice to  any other  method  of service  under  applicable law)  be
       served  upon the  master  of the  Rig  (or upon  anyone  acting as  the
       master)  and such service shall be deemed good service on the Owner for
       all purposes.

20.03  The  Owner agrees  that should the  Mortgagee bring  a legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out of  or in connection with  this Mortgage, no immunity  from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,   attachment  prior   to  judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed  by or on behalf of  the Owner or with  respect of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby  consents generally in respect of  any legal action or
       proceedings arising out of or  in connection with this Mortgage  to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which  may be made or given in such
       action or proceedings.

IN WITNESS   whereof  the Owner  and the  Mortgagee have  duly executed  these
presents the day and year first before written.

READING & BATES DRILLING CO.


By:  _____________________________________


CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH


By:  _____________________________________




By:  _____________________________________

                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK         )
                          )    ss:
COUNTY OF NEW YORK        )


                   On this  9th  day  of  July,  1996,  before  me  personally
appeared ____________________ to me known and who resides at                  
                      ;  and  who submitted  evidence  to  me  that  he  is  a
___________  of READING & BATES DRILLING  CO., the ___________________ company
described in and which executed the foregoing mortgage; and that he signed his
name thereto pursuant to authority granted to him by the Board of Directors of
said corporation.




____________________________________
Notary Public




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK         )
                          )    ss:
COUNTY OF NEW YORK        )


                   On this  9th  day  of  July,  1996,  before  me  personally
appeared    ______________    to    me    known    and    who    resides    at
__________________________; and who  submitted evidence to  me that he/she  is
__________   of  CHRISTIANIA  BANK  OG  KREDITKASSE,   NEW  YORK  BRANCH,  the
corporation described in and which  executed the foregoing mortgage; and  that
he/she signed his/her name thereto pursuant to authority granted to him/her by
the Board of Directors of said corporation.




____________________________________
Notary Public




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK       )
                        )    ss:
COUNTY OF NEW YORK      )


                   On  this  9th  day  of  July,  1996, before  me  personally
appeared    ______________    to    me    known    and    who    resides    at
__________________________; and who  submitted evidence to  me that he/she  is
__________  of  CHRISTIANIA   BANK  OG  KREDITKASSE,  NEW   YORK  BRANCH,  the
corporation described in and which  executed the foregoing mortgage; and  that
he/she signed his/her name thereto pursuant to authority granted to him/her by
the Board of Directors of said corporation.




____________________________________
Notary Public


                                                                Exhibit 10.104

                                                                              
                           FIRST PREFERRED MORTGAGE

                              Dated July 9, 1996

                              HRB RIG CORPORATION

                                - in favor of -


                     WILMINGTON TRUST COMPANY, not in its
                   individual capacity but solely as Trustee


                                HARVEY H. WARD

==============================================================================
                                     INDEX

CLAUSE                  SUBJECT MATTERPAGE

      1        DEFINITIONS AND INTERPRETATION . . . . . . . . . . . . . . . 2 
      2        REPRESENTATIONS AND WARRANTIES . . . . . . . . . . . . . . . 7 
      3        MORTGAGE . . . . . . . . . . . . . . . . . . . . . . . . . . 8 
      4        PAYMENT COVENANTS  . . . . . . . . . . . . . . . . . . . . . 9 
      5        PRESERVATION OF SECURITY . . . . . . . . . . . . . . . . .  10 
      6        INSURANCE  . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7        RIG COVENANTS  . . . . . . . . . . . . . . . . . . . . . .  13 
      8        PROTECTION OF SECURITY . . . . . . . . . . . . . . . . . .  17 
      9        ENFORCEABILITY AND TRUSTEE'S POWERS  . . . . . . . . . . .  18 
      10       APPLICATION OF MONEYS  . . . . . . . . . . . . . . . . . .  20 
      11       FURTHER ASSURANCES . . . . . . . . . . . . . . . . . . . .  21 
      12       POWER OF ATTORNEY  . . . . . . . . . . . . . . . . . . . .  21 
      13       INDEMNITIES  . . . . . . . . . . . . . . . . . . . . . . .  22 
      14       EXPENSES . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      15       COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . .  23 
      16       ASSIGNMENTS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      17       TOTAL AMOUNT, ETC. . . . . . . . . . . . . . . . . . . . .  24 
      18       MISCELLANEOUS  . . . . . . . . . . . . . . . . . . . . . .  24 
      19       JURISDICTION . . . . . . . . . . . . . . . . . . . . . . .  25 

ACKNOWLEDGEMENT OF MORTGAGE
EXHIBIT 1 FORM OF CREDIT AGREEMENT
EXHIBIT 2 FORM OF AMENDMENT 
EXHIBIT 3 FORM OF SUBSIDIARY GUARANTY

==============================================================================

THIS  FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made  on the  9th day of
July, 1996

BY

(1)    HRB  RIG CORPORATION,  an  Oklahoma  corporation having  its  principal
       offices  at  901 Threadneedle,  Suite  200, Houston,  Texas  77079 (the
       "Owner"),

IN FAVOR OF

(2)    WILMINGTON  TRUST  COMPANY,  a  Delaware   banking  corporation  having
       offices  at Rodney Square North, 1100  North Market Street, Wilmington,
       Delaware  19890-0001, not  in  its individual  capacity  but solely  as
       indenture  trustee  for  the  Banks  (as hereinafter  defined)  and  as
       mortgagee (the "Trustee")

WHEREAS

(A)    The Owner  is the sole owner of the whole  of the jack-up drilling unit
       HARVEY H. WARD documented  under the laws and flag of the United States
       of  America with Official Number 642693 of  4,121 gross registered tons
       and 3,079 net registered tons (the "Rig").

(B)    By a Credit Agreement dated as of April 30, 1996 (as amended,  restated
       or  supplemented  from  time to  time,  the  "Credit  Agreement") among
       Reading  &  Bates  Corporation,  a  Delaware  corporation ("Holdings"),
       Reading   &  Bates   Drilling  Co.,   an   Oklahoma  corporation   (the
       "Borrower"), the banks party thereto, Credit Lyonnais New York  Branch,
       as co-agent  (the "Co-Agent"), and Christiania Bank og Kreditkasse, New
       York Branch,  as  agent (the  "Agent"),  (the  form of  which  Original
       Credit  Agreement  together with  Exhibit  B  thereto but  without  the
       remaining attachments is attached hereto  as Exhibit 1), it  was agreed
       among other  things  that  the  Banks,  would  make  available  to  the
       Borrower  upon the  terms and conditions  therein described  a reducing
       revolving credit  facility (the "Facility")  in an aggregate amount  at
       any  time outstanding  of  One  Hundred Million  United States  Dollars
       (US$100,000,000), providing for  the making  of Loans and  the issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    By an Amendment  to the Original Credit  Agreement dated as of  July 9,
       1996 (the "Amendment") the form of which Amendment  without attachments
       is attached  hereto as  Exhibit 2,  among Holdings,  the Borrower,  the
       banks party  thereto (collectively the "Banks"),  the Co-Agent  and the
       Agent, it was agreed among  other things that the Banks  would increase
       the  amount  available  to  the  Borrower  under  the  Facility  to  an
       aggregate amount at any time  outstanding of One Hundred  Forty Million
       United  States   Dollars   (US$140,000,000)  subject   to   semi-annual
       reductions as set forth therein.

(D)    The obligations  of  the Borrower  with  respect  to the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the promissory notes of the Borrower  payable to the order of
       the  respective Banks  (each a  "Note" and,  collectively, the "Notes")
       (the form of which  is attached as Exhibit B to  the Credit Agreement).


(E)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed  and delivered a Subsidiary  Guaranty (as amended, restated or
       supplemented from time to  time, the  "Subsidiary Guaranty"), the  form
       of which  Subsidiary Guaranty is attached hereto as  Exhibit 3 in favor
       of the  Agent  guaranteeing the  performance  by  the Borrower  of  its
       obligations under the Credit Agreement and the other Credit Documents.

(F)    This Mortgage is  made for  the benefit of  the Trustee  to secure  the
       guaranty  by the Owner of  (i) the full and  prompt payment when due of
       (x) the  principal and interest  on the Notes  issued, and Loans  made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect to the Letters of Credit issued  under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of  the Borrower  to  the Secured  Creditors  (as hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in  connection with the Credit Agreement and the other Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by  the Borrower  with  all of  the terms,
       conditions and  agreements contained  in the  Credit Agreement  and the
       other Credit Documents  including, without  limitation, this  Mortgage;
       (ii) any and all sums advanced by the Trustee in order  to preserve the
       Collateral (as hereinafter  defined) or preserve its  security interest
       in  the  Collateral; (iii)  in  the  event of  any  proceeding  for the
       collection  or  enforcement  of   any  indebtedness,  obligations,   or
       liabilities of  the Borrower referred to in clause  (i) above, after an
       Event of Default  shall have occurred and be continuing, the reasonable
       expenses of  the Trustee of  re-taking, holding, preparing  for sale or
       lease,   selling  or  otherwise  disposing   of  or  realizing  on  the
       Collateral, or  of any exercise by the Trustee of its rights hereunder,
       together with reasonable  attorneys' fees of counsel to the Trustee and
       court costs; and  (iv) all amounts paid  by any Indemnitee as  to which
       such Indemnitee has the right to reimbursement under  Clause 13 of this
       Mortgage  (all   such  obligations,  liabilities,  sums   and  expenses
       referred  to  in clauses  (i)  through  (iv)  above being  collectively
       referred to as  the "Obligations").  It is acknowledged and agreed that
       the  "Obligations" shall  include  extensions of  credit  of the  types
       described above,  whether outstanding on  the date of  this Mortgage or
       extended from time to time after the date of this Mortgage.

(G)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of the  Banks entering into the Amendment and agreeing to
       make the Facility available to the Borrower  and as a condition thereto
       and for other  good and valuable  consideration provided  by the  Banks
       (the sufficiency of which the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage unless  the context otherwise requires,  the following
       expressions shall have the following meanings:

       "Agent" shall have the  same meaning for such term as  set forth in the
       Credit Agreement;

       "Amendment" means  the  Amendment  dated  as  of  July  9,  1996  among
       Holdings,  the  Borrower,  the Banks,  the  Co-Agent,  the Agent  first
       referred to in Recital (C) hereto;

       "Bank" means  any lender  listed from time  to time  on Annex 1  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral Assignment  of Insurance"  means the  Collateral Assignment
       of Insurance in  respect of the Rig executed  or to be executed  by the
       Owner in favor of the Agent;

       "Commitment" shall have the same meaning for such  term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the Credit  Agreement, dated as  of April 30,
       1996, among  Holdings, the Borrower,  the Banks, the  Co-Agent, and the
       Agent as  amended by  the Amendment  first referred to  in Recital  (B)
       hereto and  as further amended,  restated or supplemented  from time to
       time;

       "Credit Documents"  shall have the meaning  for such term  as set forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no  Letters of Credit remain  outstanding and the  Loans and the Unpaid
       Drawings  together with  interest, fees and  all other  obligations are
       paid in full;

       "Credit Party" shall have  the same meaning for such term  as set forth
       in the Credit Agreement;

       "Default  Rate"  shall   mean  the  rate  of  interest   calculated  in
       accordance with Section 1.07(b) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions or  authorization  required under  applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices of  noncompliance  or  violation,  investigations  (other  than
       internal  reports  prepared  by  Holdings or  any  of  its Subsidiaries
       solely in the ordinary  course of  business of such  entity and not  in
       response  to  any  third  party action  or  request  of  any  kind)  or
       proceedings relating  in any way to any Environmental Law or any permit
       issued,  or  any  approval  given,  under  any such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental  or  regulatory  authorities for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by   any   third   party   seeking    damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means (i)  any  release  of  Environmentally
       Sensitive  Material  from   the  Rig,  (ii)  any   incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than  the Rig  and which  involves collision  between the Rig  and such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or otherwise liable (in whole  or in part) or (iii) any  incident
       in which Environmentally Sensitive  Material is released from a  vessel
       other than the Rig and where the Rig  is actually or potentially liable
       to  be arrested  as  a result  and/or where  the  Owner is  actually or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking,  leaching,  dumping,  emitting,  escaping, emptying,  seeping,
       placing and  the  like, into  or upon  any  land or  water  or air,  or
       otherwise entering into the environment);

       "Environmental  Laws"   means   all   applicable   laws,   regulations,
       conventions  and  agreements  whatsoever   relating  to  pollution   or
       protection of the  environment (including, without limitation,  the Oil
       Pollution Act  of 1990 (33  U.S.C.  2701  et seq.), the  Comprehensive
       Environmental Response,  Compensation, and  Liability Act  of 1980  (42
       U.S.C.  9601  et seq.), the Hazardous Materials Transportation Act (49
       U.S.C.  1801 et seq.),  the Resource Conservation and Recovery  Act of
       1976 (42  U.S.C.  6901 et seq.),  the Clean Air Act  (42 U.S.C.  7401
       et seq.), the Federal  Water Pollution Control Act (33 U.S.C.  1251 et
       seq.) and  the Toxic Substances Control Act (15  U.S.C.  2601 et seq.)
       (all  of the  foregoing  as amended),  and any  comparable laws  of the
       individual States of the  United States of  America or any other  state
       or nation);

       "Fees" shall have  the same meaning for  such term as set  forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde foam  insulation,  transformers  or  other
       equipment   that  contained,  electric   fluid  containing   levels  of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous  waste,"  "restricted hazardous  waste,"  "toxic substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar  import, under  any applicable  Environmental Law;  and (c) any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into  in respect of the Rig or  otherwise by the Owner (whether
       in the sole name of  the Owner or in  the joint names of the Owner  and
       the Agent)  and all benefits  thereof (including  claims of  whatsoever
       nature and return of premiums);

       "Interest  Period" shall  have the  same meaning  for such term  as set
       forth in Section 1.08 of the Credit Agreement;

       "Letter  of Credit" shall  have the same meaning  for such  term as set
       forth in Section 2.01 of the Credit Agreement;

       "Loan(s)"  shall have the  same meaning for such  term as  set forth in
       the Credit Agreement;

       "Major  Casualty" means any casualty to the  Rig in respect whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means  each  promissory note  of  the  Borrower referred  to  in
       Recital (D) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (F) hereto;

       "Oil Pollution Act  1990" means the Oil  Pollution Act 1990  (33 U.S.C.
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       semi-submersible  drilling  rig  JACK  BATES   owned  by  the  Borrower
       documented under  the laws and  flag of  the United  States of  America
       with  Official  Number  906283 of  19,928  gross  registered  tons  and
       14,948 net registered  tons; (ii) the jack-up drilling rig D.R. STEWART
       owned  by   Reading  &  Bates   Exploration  Co.  ("R&B   Exploration")
       documented under  the laws  and flag  of the  United States  of America
       with Official  Number 626904 of  6,494 gross registered  tons and 5,834
       net  registered tons; (iii) the drilling tender  W.D. KENT owned by R&B
       Exploration documented under the laws and flag  of the United States of
       America with Official  Number 583169 of 5,383 gross registered tons and
       4,185  net registered  tons; (iv)  the drilling  tender  CHARLEY GRAVES
       owned by Reading and Bates  Borneo Drilling Co., Ltd.  documented under
       the laws and flag of the  Republic of Panama with Patente Number  6618-
       76-CH of 5,829  gross registered tons  and 1,748  net registered  tons;
       (v) the  jack-up drilling rig  RON TAPPMEYER owned  by Reading &  Bates
       (A) Pty  Ltd. documented  under the  laws  and flag  of Australia  with
       Official Number 855213 of  11,455 gross  registered tons and  3,436 net
       registered  tons; (vi)  the semi-submersible  drilling rig  J.W. McLEAN
       owned  by  the Borrower  documented  under  the laws  and  flag of  the
       Republic  of Panama  with  Patente Number  25384-PEXT  of 15,453  gross
       registered  tons  and  4,636  net  registered  tons,  (vii)  the  semi-
       submersible  drilling  rig RIG  41  owned  by  RB  Drilling Co.  ("RB")
       documented  under the  laws and  flag of  the Republic  of  Panama with
       Patente Number 22365-95 of 10,078  gross registered tons and  3,024 net
       registered tons;  and (viii)  the Panamanian  flag rig  SEILLEAN to  be
       acquired by RB as contemplated by the Amendment;

       "Permitted  Liens" means:  (1) liens  incident to  expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being contested in good  faith, provided
       such liens  are not in  excess of  U.S.$5,000,000.00, and if  in excess
       thereof, then the Owner shall, upon  the written request of the  Agent,
       provide a bond or other  security satisfactory to the Agent); (2) liens
       for master's and  crew's wages not yet  due and payable; (3)  liens for
       taxes, assessments,  governmental charges, fines  and penalties not  at
       the time  delinquent (unless  being contested in  good faith,  provided
       such liens are  not in excess  of U.S.$5,000,000.00,  and if in  excess
       thereof,  then the Owner shall, upon the  written request of the Agent,
       provide a bond or other security satisfactory  to the Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause 6  hereof (except that  no lien shall be  deemed
       not covered by insurance to the  extent insurance in force would  cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount approved  by  the Agent);  (6)  liens  arising pursuant  to  any
       judgment  or to  an  order of  attachment,  distraint or  similar legal
       process arising in connection with  legal proceedings, but only  if and
       so long as the execution  or other enforcement thereof is  not unstayed
       for more  than 30  consecutive days; (7)  any lien  for the payment  or
       discharge of which  provisions satisfactory to the Agent have been made
       as evidenced by the Agent's written consent to such lien; (8) any  lien
       in  favor of  the Banks;  and provided  that Permitted  Liens shall not
       include any liens  described in subclauses (1) through (7) above unless
       they:  (i)  are  subordinate to  the  lien  of  this  Mortgage or  (ii)
       constitute a  maritime lien  which would in  any event  be entitled  as
       such to priority  over the Mortgage  under the  United States  shipping
       laws or  other applicable laws  relating to the  Rig's trading pattern.
       Nothing herein  shall be  deemed a  waiver of  the preferred  status of
       this Mortgage; 

       "Protection  and indemnity  risks"  means the  usual  risks covered  by
       protection  and   indemnity   associations  of   international   repute
       including the  proportion not  recoverable in case  of collision  under
       the ordinary running-down clause (unless such  is recoverable under the
       relevant hull and machinery coverage);

       "Requisition Compensation"  means  all  moneys  or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means the  vessel described in  Recital (A)  hereto and  includes
       any  share or  interest  therein  and  her engines,  machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and  appurtenances whether  on board  or ashore and  whether
       now  owned or  hereafter acquired  (but excluding  therefrom any leased
       equipment owned by third parties);

       "Secured Creditors"  shall mean the  Trustee, the Banks,  the Letter of
       Credit  Issuer  and the  Agent  under  and  as defined  in  the  Credit
       Agreement;

       "Security Documents" shall have  the same meaning for such  term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge, lien, hypothecation, assignment, trust  arrangement,
       title retention or other security  interest or arrangement of  any kind
       whatsoever;

       "Subsidiary Guaranty" means the Guaranty in favor  of the Agent and the
       Banks,  dated   as  of  April   30,  1996,  as   amended,  restated  or
       supplemented from  time  to  time, to  which  the  Owner has  become  a
       signatory as first referred to in Recital (E) hereto;

       "Taxes" shall have the same meaning for  such term as set forth in  the
       Credit Agreement;

       "Total  Commitment" shall have  the same  meaning for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive, arranged,  agreed, or
       compromised  Total Loss  of the Rig;  (b) the requisition  for title or
       other compulsory acquisition  or forfeiture  of the Rig  otherwise than
       by  requisition for hire; (c)  the capture,  seizure, arrest, detention
       or confiscation of  the Rig by any  government or by persons  acting or
       purporting  to  act  on behalf  of  any government  unless  the  Rig be
       released from such capture, seizure, arrest or detention  within ninety
       (90) days after the occurrence thereof;

       "United States  Dollars" and  "US$" means  the lawful  currency of  the
       United States of America;

       "Unpaid  Drawing"  shall have  the same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War Risks" includes the  risk of mines and all risks excluded from the
       standard  form of  English marine  policy by  the free  of  capture and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified,  all references  to  Clauses are  to  clauses of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,  words  denoting   the
             singular number shall include the plural and vice versa;

       (c)   references    to   persons    include   bodies    corporate   and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the  Owner is the sole legal and beneficial owner of the whole of
             the  Rig  and neither  the  whole nor  any  share in  the  Rig is
             subject to any  Security Interest (except for Permitted Liens and
             the lien of this Mortgage);

       (b)   the  Owner has  not sold  or transferred,  or agreed  to sell  or
             transfer, title to the Rig or any share therein;

       (c)   the Owner  is a corporation  duly organized and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the Owner  has full power and  authority (i) to register  the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements  relating   to  the   ownership,  registration   and
             operation of the Rig;

       (f)   the  Owner  has  taken  all  necessary  action  to  authorize the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner enforceable against the Owner in accordance with  its terms
             (except  to   the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency,  moratorium or other laws  of general
             application  relating  to   or  affecting   the  enforcement   of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's  National Vessel  Documentation Center  in Falling
             Waters, West Virginia will  create a legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any  respect (i) any law or  regulation of any governmental or
             official  authority  or body,  or  (ii) any  of  the constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the  Owner is a party or  which is binding upon  the Owner or any
             of its assets;

       (h)   all consents, licenses, approvals and authorizations  required in
             connection  with  the   entry  into,  performance,  validity  and
             enforceability   of   this   Mortgage   and    the   transactions
             contemplated hereby and  thereby have  been obtained  and are  in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage, it is  not necessary  for the legality,  validity,
             enforceability  or  admissibility  in evidence  of  this Mortgage
             that it  or any document  relating thereto be registered,  filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or that any stamp, registration or similar taxes  be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws relating to the Rig, its operation and management;

       (k)   the Owner  has obtained  all Environmental  Approvals  and is  in
             compliance with all requests thereof;

       (l)   no Environmental Claim  has been  made or threatened  against the
             Owner, the Approved Manager  or otherwise in connection  with the
             Rig; and

       (m)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be expected to  result, in  an Environmental Claim  in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall survive the execution of this Mortgage and shall  be deemed to be
       repeated at the time of the making  of each Loan and at the time of the
       issuance  of  each Letter  of Credit,  with  respect to  the  facts and
       circumstances  existing at  each  such time,  as if  made at  each such
       time.

3.     MORTGAGE

3.01   In order to secure the Obligations the Owner has  granted, conveyed and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the  Trustee, its successors and assigns, the  whole of the Rig TO HAVE
       AND TO  HOLD the  same unto  the Trustee,  its  successors and  assigns
       forever upon  the terms  herein set  forth for the  enforcement of  the
       Obligations.

       Provided only and the condition  of these presents is such that  if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been  performed in  full as  and  when the  same shall  become due  and
       payable in  accordance with  the  terms of  the  Credit Agreement,  the
       Subsidiary Guaranty and this  Mortgage and the Owner and its successors
       and  assigns shall  observe and  comply with  the covenants,  terms and
       conditions  contained  in the  Subsidiary  Guaranty  and this  Mortgage
       expressed or implied  to be performed, all  without delay or  fraud and
       according to the true intent and  meaning thereof, then these  presents
       and the rights hereunder shall cease,  determine and be void  otherwise
       to be  and remain  in full  force and effect  and, in  such event,  the
       Trustee agrees to  execute and record at the expense  of the Owner, all
       such documents as  the Owner may  reasonably require to  discharge this
       Mortgage.

       Notwithstanding anything  to the  contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that if  any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in relation to  the Rig and none  of the Secured Creditors  shall
       be under  any obligation of any  kind whatsoever in  respect thereof or
       be under any liability whatsoever in event of any  failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured   Creditors  for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or other  moneys as  are stated  in this  Mortgage to  be
             payable by  the Owner to  or recoverable  from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties,  fees, charges or other moneys referred to
             in Clause 4.01(a)  from the date on  which demand is  made by any
             Secured  Creditor  for  payment  by the  Owner  of  the  relevant
             expense,  claim,  liability, loss,  cost,  duty,  fee, charge  or
             other money incurred  by a Secured  Creditor for which  the Owner
             is  responsible (both before and after  any relevant judgment) at
             the Default Rate; and

       (c)   to pay and perform its obligations which may be  or become due or
             owing  to  a   Secured  Creditor  under  this  Mortgage  and  the
             Subsidiary  Guaranty at  the times  and in  the manner  specified
             herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as a  continuing  security for  the  performance of  the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the security so created shall be in addition to  and shall not in
             any way be prejudiced  or affected by any  of the other  Security
             Documents;

       (c)   the  Trustee shall not have to wait  for the Agent to enforce any
             of  the other  Security Documents  before enforcing  the security
             created by this Mortgage;

       (d)   no  delay or  omission on the  part of the  Trustee in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or remedy  or be construed  as a waiver thereof  nor
             shall any single  or partial exercise of any such right, power or
             remedy preclude any  further exercise thereof or  the exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given in  writing and then only for  the purpose and
             upon the terms for which it is given.

5.02   Any settlement  or discharge under  this Mortgage  between the  Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being avoided or set-aside or ordered to  be refunded or reduced
       by  virtue  of  any  provision  or  enactment  relating to  bankruptcy,
       insolvency, administration or liquidation for  the time being in  force
       and, if such  condition is not satisfied, the Trustee shall be entitled
       to recover from the Owner  on demand the value of such  security or the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be  affected  by   any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair, affect  or discharge such rights  and security, in whole  or
       in part,  including without limitation, and whether  or not known to or
       discoverable by the Secured Creditors or any other person:

       (a)   any time or  waiver granted to  the Credit Parties  or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities against  any  of  the  Credit  Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any  amendment  or  supplement  to  the   Credit  Agreement,  the
             Subsidiary  Guaranty, any  of the  other Credit  Documents (other
             than this Mortgage) or any other document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or   frustration   of  any
             obligations  of any  of the  Credit Parties  or any  other person
             under the Credit  Agreement, the Subsidiary Guaranty,  any of the
             other Security Documents  (other than this Mortgage) or any other
             document or security.

6.     INSURANCE

6.01   The Owner  covenants with  the Trustee throughout  the Credit  Facility
       Period that:

       (a)   The  Owner shall,  at its  own expense, when  and so  long as any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured, or cause  the Rig to be insured, in  lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and  indemnity risks,  pollution  liability,  and war
             risks), in such  form (including without limitation,  the form of
             the loss  payable clause and the  designation of  named assureds)
             and with  such  first  class insurance  companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably satisfactory to the Agent.   With respect to hull  and
             machinery/increased  value  insurance, including  war  risk,  the
             Owner  shall insure the  Rig and  keep her insured,  or cause the
             Rig  to be  insured, for  an amount  which is  at least  the full
             commercial value of the Rig, and  when such amount is  aggregated
             with  the amount of  such insurance coverage  on the  Other Rigs,
             such  aggregate  amount  shall be  at  least  110%  of  the Total
             Commitment.  The  Rig shall in no event be  insured for an amount
             less  than the agreed  valuation as set  forth in  the applicable
             marine and war risk  policies.  Such insurance shall cover marine
             and war risk perils,  on hull and machinery, with deductibles not
             in  excess of US$500,000  (such deductibles not  to apply  in the
             case of Total Loss  of the Rig), and  shall be maintained in  the
             broadest   forms  available   in   the  American,   British   and
             Scandinavian   insurance  markets   or   in   such  other   major
             international  markets reasonably  acceptable to the  Agent.  The
             Owner shall maintain,  or cause to be maintained,  protection and
             indemnity or equivalent insurance, including war risk  protection
             and indemnity coverage and coverage  against pollution liability,
             in an amount  not less than  US$100,000,000 (or, with  respect to
             pollution  liability  coverage, such  greater  amount  as may  be
             required from  time to  time by the  Oil Pollution  Act 1990,  or
             other Environmental Laws), as  and when applicable to the Rig and
             its operations, through  underwriters or associations  acceptable
             to the Agent.  In  addition, the Owner shall, at its own expense,
             furnish  to  the  Agent  a  mortgagee's  single  interest  policy
             providing coverage which,  when aggregated  with the  mortgagee's
             interest  insurance furnished  to  the Agent  in  respect of  the
             Other Rigs, shall be in an amount  equal to at least 110% of  the
             aggregate  amount of  the Total  Commitment (or  in lieu  of such
             mortgagee's  interest insurance  Owner shall  cause the  hull and
             machinery/increased  value  insurance  to be  endorsed  to afford
             breach of warranty coverage for  the benefit of the Agent).  Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies for the benefit of the Agent shall be  maintained in the
             broadest   form   available   in   the   American,   British  and
             Scandinavian  markets   or  other  major   international  markets
             acceptable  to the  Agent through underwriters  acceptable to the
             Agent.   The  Rig shall not  operate in or  proceed into any area
             then excluded by trading  warranties under its marine or war risk
             policies (including  protection and indemnity)  without obtaining
             any  necessary  additional coverage,  satisfactory  in  form  and
             substance, and  evidence  of which  shall  be furnished,  to  the
             Agent.

       (b)   The   policy  or  policies  of   insurance  shall  be  issued  by
             responsible  underwriters  reasonably  acceptable to  the  Agent,
             shall   contain  conditions,  terms,  stipulations  and  insuring
             covenants satisfactory to  the Agent, and  shall be kept  in full
             force and  effect by the Owner so long  as any Obligations remain
             outstanding.    All  such  policies, binders  and  other  interim
             insurance contracts shall be executed and  issued in the name  of
             the Owner and shall,  to the extent required herein, provide that
             loss  be payable to the  Agent for distribution  by it to itself,
             the Banks and the  Owner as their interests may appear, and shall
             provide for at least  ten days' prior notice  to be given to  the
             Agent  by  the  underwriters  or  association  in  the  event  of
             cancellation or  the failure of  the Owner to pay  any premium or
             call  which  would  suspend  coverage under  the  policy  or  the
             payment of a claim thereunder.   The Agent and the Trustee  shall
             be  named  as co-assureds  on  all  such  policies and  insurance
             contracts, but without liability  of the Agent or the Trustee for
             premiums  or  calls.   Certified  copies  of all  such  policies,
             binders and other interim insurance contracts  shall be deposited
             with  the Agent.    Originals shall  also  be  provided upon  the
             request of  the Agent.   The  Owner shall  furnish  to the  Agent
             annually a detailed report signed by  a firm of marine  insurance
             brokers satisfactory to the Agent as to  the insurance maintained
             in respect  of the Rig,  as to their opinion  as to  the adequacy
             thereof and as to compliance with  the provisions of this  Clause
             6.01.

             Unless  otherwise  required  by  the  Agent  by  notice   to  the
             underwriters, although the following insurance is  payable to the
             Agent, (i) any  loss under any insurance on  the Rig with respect
             to  protection and indemnity  risks may be  paid directly  to the
             Owner to reimburse  it for any  loss, damage or  expense incurred
             by it and covered by such insurance or to the person to whom  any
             liability  covered by such insurance  has been  incurred and (ii)
             in the case of any  loss (other than a loss covered by  (i) above
             or by the next  following paragraph of this Clause 6.01(b)) under
             any  insurance with respect  to the Rig  involving any  damage to
             the Rig, the underwriters  may pay direct for the repair, salvage
             or other  charges involved  or,  if the  Owner  shall have  first
             fully repaired  the damage  or paid all  of the salvage  or other
             charges, may pay the  Owner as reimbursement therefor;  provided,
             however, that if  such damage  involves a before  deductible loss
             in excess of US$1,000,000,  the underwriters shall not  make such
             payment  without first  obtaining the written  consent thereto of
             the  Agent (which  consent shall  not be  unreasonably withheld).
             Any loss covered  by this  paragraph which is  paid to the  Agent
             but  which  might   have  been  paid,  in   accordance  with  the
             provisions of  this paragraph, directly to  the Owner  or others,
             shall be  paid by the Agent to, or as  directed by, the Owner and
             all  other  payments  to the  Agent  of  losses  covered  by this
             paragraph  shall  be applied  by  the  Agent in  accordance  with
             Clause 10.01.

             In  the  event of  an  actual  or constructive  Total  Loss  or a
             compromised constructive Total Loss or requisition  of title, all
             insurance  payments therefor  shall be  paid to  the Agent.   The
             Owner shall not declare or agree  with the underwriters that  the
             Rig  is  a  constructive  or  compromised,   agreed  or  arranged
             constructive Total Loss without  the prior written consent of the
             Agent.

       (c)   In the event of an actual or constructive Total  Loss of the Rig,
             the Agent shall retain  out of the insurance payments received on
             account of  such loss any  sum or  sums that  shall be or  become
             owing  to  the Secured  Creditors under  the  Security Documents,
             whether or  not the same be  then due and  payable, together with
             accrued  interest  and  the  cost,  if  any,  of  collecting  the
             insurance, and pay the balance as provided in Clause 10.

       (d)   The Owner shall comply with and satisfy all of the provisions  of
             any applicable  law, regulation, proclamation or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and  will maintain,  or cause to  be maintained, all certificates
             or other evidence of financial responsibility as may be  required
             by any such law,  regulation, proclamation or order  with respect
             to the trade in which the Rig from time to time is engaged.

       (e)   The  Owner shall renew all insurances as they expire and so as to
             insure  that there is no gap  in coverage, keep the Agent advised
             of the progress of such renewals,  and procure that the  insurers
             shall promptly confirm in writing  to the Agent as and  when each
             such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions or  other  sums  payable in  respect  of  all  such
             insurances and produce all relevant receipts  when so required by
             the Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments   of  insurance   aforesaid  relative   to  the   Rig
             (including any  warranties, express or  implied, therein) without
             first obtaining the consent  of the  insurers to such  employment
             and complying  with  such requirements  as  to extra  premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The Owner  covenants  with  the  Trustee  that  throughout  the  Credit
       Facility Period the Owner will:

       (a)   maintain its existence  as a  corporation in  good standing  duly
             organized under the laws of the State of Oklahoma;

       (b)   keep the Rig  documented in its  name as  a United States  vessel
             and to do or  allow to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig  in a good and efficient  state of repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  Self-Elevating  Drilling Unit)  at  the  American Bureau  of
             Shipping free  of recommendations  and qualifications  and change
             of class,  save those notified to and  approved in writing by the
             Trustee  and so  as  to comply  with  all  laws, regulations  and
             requirements  (statutory   or  otherwise)   from  time  to   time
             applicable to vessels documented under the  laws and flag of  the
             United   States  and   applicable  to  vessels   trading  to  any
             jurisdiction to which the Rig may,  subject to the provisions  of
             this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost  parts or equipment be  effected in such manner  (both as
             regards workmanship  and quality of materials) as to not diminish
             the value of the Rig  and not to remove any material part  of, or
             item of equipment installed  on, the Rig unless the  part or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is in the  same condition as or  better condition than  the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner  and  subject  to  the  security constituted  by  this
             Mortgage;

       (f)   submit  the Rig  to such  periodical or  other surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply  to the Trustee and the Agent copies of all survey reports
             issued in respect thereof;

       (g)   permit the representatives of the Agent  or independent surveyors
             representing  the  Trustee to  board  the Rig  at  all reasonable
             times and  upon reasonable notice  for the purpose of  inspecting
             her condition  or  for the  purpose of  satisfying themselves  in
             regard to proposed or executed repairs  and to afford all  proper
             facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged on  or  in respect  of  the Rig  and  all other  expenses
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig  pursuant to  legal  process,  or in  the  event of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (i)   not employ  the  Rig or  allow her  employment  in any  trade  or
             business  which  is  unlawful  under  the laws  of  any  relevant
             jurisdiction  or in carrying  illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world (whether  war be declared or
             not) not employ the Rig or suffer her employment in  carrying any
             contraband goods  or  to enter  or  trade to  any zone  which  is
             declared  a war  zone  by any  government  or  by the  war  risks
             insurers of the Rig unless  there shall have been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time  to time  require regarding  the Rig,  her employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages and, upon the  request of the Trustee in writing, copies
             of  all charters  and  other  contracts  for  her  employment  or
             otherwise howsoever concerning her;

       (k)   notify both  the Trustee  and  the Agent  forthwith  by telex  or
             telecopy thereafter confirmed by letter of:

             (i)     any  casualty  to the Rig which is or is likely to  be  a
                     Major Casualty; and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss; and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by  any competent  authority
                     which is not immediately complied with; and

             (iv)    any  arrest of  the  Rig  or  the exercise  or  purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire; and

             (v)     any  intended  dry  docking  of the Rig, as to  which the 
                     Owner shall give the Trustee  ten (10) days prior notice,
                     provided, that in the event of any emergency  dry docking
                     of  the  Rig,  the  Owner  shall  immediately  notify the
                     Trustee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for  normal periods of inactivity  between contracts
                     for the Rig during which  periods the Rig remains manned)
                     and obtain the prior written consent of the Trustee;

       (l)   keep  proper books of account  in respect  of the Rig  and as and
             when  the Trustee  or the  Agent may  so reasonably  require make
             such books available for  inspection on behalf of the Trustee and
             furnish satisfactory evidence that  the wages and allotments  and
             the  insurance of the  master and crew  are being  regularly paid
             and that  all deductions  from  crew's wages  in  respect of  tax
             and/or  social security  liability are  being  properly accounted
             for  and that  the master  has no  claim for  disbursements other
             than those  incurred by him in the  ordinary course of trading on
             the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement  which apply to  the Rig and  the Owner, and  in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person for the purpose of  work being done upon
             her in  an amount exceeding or likely  to exceed Two Million Five
             Hundred  Thousand United  States Dollars  (US$2,500,000)  (or the
             equivalent in any other currency) unless such person  shall first
             have given to the  Trustee and  in terms reasonably  satisfactory
             to  it a written undertaking not to  exercise any lien on the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established  by the  Ship Mortgage  Act  and any  other pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid  and enforceable first  and preferred lien upon  the
             Rig  and promptly  to furnish  to the  Trustee from  time to time
             such proof as the Trustee may  request for its satisfaction  with
             respect to  the Owner's compliance  with the  provisions of  this
             sub-clause;

       (p)   place, and  use  due diligence  to retain,  a properly  certified
             copy of this Mortgage on board the Rig with  her papers and cause
             such certified copy of  this Mortgage to be exhibited  to any and
             all persons having  business with the  Rig which might  give rise
             to any  lien thereon other than a lien  for crew's wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and  in the  master's  cabin of  the Rig  a  framed printed
             notice in plain type in  English of such size that  the paragraph
             of  reading matter  shall cover a  space not  less than  6 inches
             wide and 9 inches high reading as follows:

                                       "NOTICE OF MORTGAGE

             This Rig is covered by a  First Preferred Mortgage to  WILMINGTON
             TRUST  COMPANY  not in  its  individual  capacity  but solely  as
             Trustee  for  the  Banks  defined  in  the  said  Mortgage  under
             authority  of  the United  States  Ship  Mortgage Act,  1920,  as
             amended, recodified  as 46  U.S.C.  31301 et.  seq.   Under  the
             terms of the  said Mortgage neither  the Owner nor  any charterer
             nor the master of  this Rig nor any  other person has any  right,
             power or authority to create, incur or  permit to be imposed upon
             this  Rig  any  lien  whatsoever other  than  for  crew's  wages,
             general average and salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)  any Environmental  Claim which could  reasonably be expected
                  to result in damages in  excess of US$200,000 being or  made
                  against  the Owner, or otherwise in connection with the Rig;
                  or

             (ii) any  Environmental  Incident    occurring,  and   keep   the
                  Trustee advised, in writing on  such  regular  basis and  in
                  such  detail  as  the  Trustee shall require, of the Owner's
                  response  to  such  Environmental  Claim  or   Environmental
                  Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by the Restated Credit  Agreement) without the written consent of
             the  Trustee having  first been  obtained, and  any such  written
             consent to  any one such sale, mortgage  or transfer shall not be
             construed to be a  waiver of this  provision with respect to  any
             subsequent proposed sale, mortgage or  transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the  lien it creates.   The Owner shall  not charter
             the  Rig to, or permit the Rig  to serve under any contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or "specially  designated national"
             of a "designated  foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury Department,  31 C.F.R. Parts 500 and  515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity"  in  the Libyan
             Sanctions Regulations of the  United States Treasury  Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity  of the Government of  Iraq" or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be  codified at  31 C.F.R. Part  575, as amended,  all within the
             meaning   of    said   Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters  or enter any Cuban port for  any purpose or engage in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the  Iranian   Transactions
             Regulations, 31  C.F.R. Part 560,  as amended, the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or violation  would  (i) expose  the Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to law, shall  not abandon  the Rig in  a foreign port,
             shall  not engage in  any unlawful  trade or  violate any  law or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or capture,  and shall not  do, or suffer or  permit to  be done,
             anything which  can or may injuriously affect the registration or
             enrollment of the  Rig under  the laws of  the United States  and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at  any time and as  often as may be  necessary to take  any
       such  action as  it may in  the reasonable  exercise of  its discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created by  this Mortgage  and the  other Credit Documents  (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the Owner does not comply  with the provisions of Clause 6  or
             any  of them  the  Agent shall  be  entitled (but  not  bound) to
             effect  or to replace  and renew and  thereafter to  maintain the
             Insurances  in such manner as in  its discretion it may think fit
             and to  require that  all policies, contracts  and other  records
             relating   to   the   Insurances   (including  details   of   any
             correspondence  concerning   outstanding  claims)   be  forthwith
             delivered  to such  brokers  as the  Agent  may  nominate and  to
             collect, recover,  compromise and give a  good discharge  for all
             claims   then  outstanding  or   thereafter  arising   under  the
             Insurances  or any  of them  and  to take  over or  institute (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection therewith  as the Agent in its absolute discretion may
             think fit and to permit the  brokers through whom the  collection
             or recovery is  effected to charge the usual  brokerage therefor;
             and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  or 7.01(f)  or the  Trustee shall  be entitled  (but not
             bound)  to arrange  for the  carrying out  of such repairs  to or
             surveys of the Rig as it deems expedient or necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) the Trustee shall be  entitled (but not bound) to pay and
             discharge all  such debts,  damages and liabilities  and all such
             tolls, dues,  taxes, assessments, charges,  fines, penalties  and
             other outgoings as are  therein mentioned and/or to take any such
             measures as it  deems expedient or  necessary for the  purpose of
             securing the release of the Rig.

9.     ENFORCEABILITY AND TRUSTEE'S POWERS

9.01   Upon the  happening of any  of the Events of  Default specified  in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to  the effect that an Event of Default
       has occurred (and whether prior  to or after the Banks having served on
       the Owner  any such notice as is referred to in Section 9 of the Credit
       Agreement)  the  security constituted  by  this  Mortgage shall  become
       immediately enforceable and the  Trustee shall be entitled, as and when
       it  may see  fit, to  put into  force and  exercise all  or any  of the
       powers  possessed by  it as  mortgagee of the  Rig or  otherwise and in
       particular:

       (a)   to  exercise  all the  rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to  take possession of the Rig whether actually or constructively
             and/or  otherwise to take control of the Rig wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal process  and without  liability of the  Trustee for
             any  losses or  damages incurred  thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure  that  the Agent  collect, recover,  compromise  and give
             good discharge for any  and all moneys or claims for  moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection  or recovery is effected to charge the usual brokerage
             therefor;

       (e)   to  take over  or institute (if  necessary using the  name of the
             Owner)  or, to  the extent  lawful, procure  that the  Agent take
             over or  institute all such  proceedings in  connection with  the
             Rig,  the  Insurances, or  any  Requisition  Compensation as  the
             Trustee in its  absolute discretion thinks fit and  to discharge,
             compound,  release  or compromise  claims  against  the Owner  in
             respect  of the  Rig which  have given  or may  give rise  to any
             charge or lien on the Rig  or which are or may be enforceable  by
             proceedings against the Rig;

       (f)   to  sell the  Rig or  any  share therein  with  or without  prior
             notice to  the Owner free  from any claim  of or by  the Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or all of the  purchase price be deferred) as the Trustee in
             its absolute discretion may determine with  power to postpone any
             such  sale, without  being answerable for  any loss occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to  purchase the Rig at  any such  public auction and  to set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient  and for the purposes aforesaid the Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting the Rig, and  the insurance, management,  maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in  all respects as if the Trustee were  the owner of the Rig and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as  may  be  incurred by  the  Trustee  in  or about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental  to  the  exercise  by it  of  any  of  the powers
             aforesaid.

9.02   The  Trustee shall not be obliged to make  any enquiry as to the nature
       or sufficiency of any payment received by it under  this Mortgage or to
       make any  claim, take  any action  or enforce  any rights and  benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors, nor their  agents, managers, officers,
       employees,  delegates  and advisers  shall be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection with  the  exercise or  purported  exercise of  any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall not by reason  of the taking possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or  be liable for any loss upon  realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any  sale of  the Rig  or any  share therein  by the  Trustee the
       purchaser shall  not be bound  to see or enquire  whether the  power of
       sale  of the Trustee has arisen in the manner provided in this Mortgage
       and the sale shall be deemed to be within  the power of the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge  the purchaser who shall not  be concerned with the manner of
       application  of the  proceeds  of  sale or  be  in  any way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All  moneys  received  by  the  Trustee  (or  any  other  Secured
             Creditor, as the  case may be) in respect  of sale of the  Rig or
             any part thereof, in  respect of recovery under the Insurances or
             in respect of Requisition  Compensation, shall be applied  in the
             following manner:

             (i)     first, to the payment of all amounts owing the Trustee of
                     the  type  described in clauses (ii) and (iii) of Recital
                     (F);

             (ii)    second, to the extent moneys remain after the application
                     pursuant to the preceding clause (i),  an amount equal to
                     the outstanding Obligations shall be  paid to the Secured
                     Creditors  as  provided  in  Clause 10.01(c),  with  each
                     Secured  Creditor  receiving  an  amount  equal  to  such
                     Obligations  held  by   it  or,   if  the  proceeds   are
                     insufficient to pay in full all such Obligations, its Pro
                     Rata Share (as defined below) of the amount remaining  to
                     be distributed; and

             (iii)   third, to the extent moneys  remain after the application
                     pursuant  to  the  preceding clauses  (i)  and  (ii), and
                     following  the termination of  this Mortgage  pursuant to
                     Clause 3.01, any  surplus then remaining shall be paid to
                     the Owner, subject, however, to  the rights of the holder
                     of any then existing Lien of which the Trustee has actual
                     notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount of such Obligations  owing to or held by  such
             Secured  Creditor  and  the denominator  of  which  is  the  then
             outstanding amount  of  all such  Obligations.   For purposes  of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee  shall be  entitled to request  each Secured  Creditor to
             furnish it with written  notice of the amount of Obligations then
             owed to  it  and shall  be  entitled to  reply  upon the  amounts
             stated therein in making such distribution.

       (c)   All  payments required to be made  to Secured Creditors hereunder
             shall be  made to the  Agent under  the Credit Agreement  for the
             account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i)  the Agent under  the Credit Agreement  and (ii)  the Secured
             Creditors for  a determination (which the  Agent and each Secured
             Creditor,  by their acceptance of  the benefits  of this Mortgage
             shall  be obligated to  provide upon request  of the  Trustee) of
             the  outstanding  Obligations  owed  to  the  Secured  Creditors.
             Unless it  has  actual knowledge  (including  by way  of  written
             notice from a Secured  Creditor) to the contrary, the Agent under
             the Credit Agreement, in  furnishing information pursuant to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be  entitled  to  assume  that  (x)  no  obligations  other  than
             principal, interest and regularly accruing fees  are owing to any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:

       (a)   perfecting or protecting the  security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving  or protecting any  of the rights  of the  Trustee and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the security  constituted by this Mortgage and  the
             covenants and obligations of the Owner under this Mortgage  shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The  Owner, by way  of security and in  order more fully  to secure the
       performance  of  the  Obligations,  hereby   irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in  its name all documents which  the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage  shall have become  immediately enforceable  pursuant to
             Clause 9.01; and

       (b)   executing,   signing,   perfecting,  doing   and   (if  required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise  of such power as is referred to  in Clause 12.01(a) by or
       on  behalf of  the Trustee  shall not put  any person  dealing with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable  nor shall  such person  be in  any way affected  by notice
       that this Mortgage has not become enforceable and, in relation  to both
       Clauses 12.01(a) and  12.01(b), the  exercise by  the  Trustee of  such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on the  release of  the Rig  from the  security  created by  this
             Mortgage,

       and  each of the Secured Creditors and  each such agent or attorney may
       retain and  pay all sums in  respect of the same  out of money received
       under  the powers  conferred  by  this  Mortgage.    All  such  amounts
       recoverable by such Secured Creditors or  such agent or attorney  shall
       be recoverable on a full indemnity basis.

13.02  Without limiting the foregoing Clause  13.01, the Owner hereby  further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers, directors,  employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'  fees   and   expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or  any of them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including  wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;  (c)   any  Environmental  Claim   brought  or
       threatened, or  settlement  reached;  or  (d) any  violation  of  laws,
       orders, regulations, requirements  or demands of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under  any applicable law or regulation,  and whether pursuant to a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or  for  any other  reason,  any  payment  under  or in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than  the currency in which such payment  is due under or in connection
       with this  Mortgage (the  "contractual currency"),  then to  the extent
       that the amount of such payment actually received by the  Trustee, when
       converted into the contractual  currency at the rate of exchange, falls
       short  of the amount due under or in connection with this Mortgage, the
       Owner,  as a  separate and independent  obligation, shall indemnify and
       hold harmless  the Trustee against the  amount of such shortfall.   For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which  the Trustee is able on the date of such payment (or, if it is
       not practicable  for the Trustee  to purchase the contractual  currency
       with the payment currency  on the date of such payment,  at the rate of
       exchange as  soon afterwards as  is practicable for  the Trustee to  do
       so) to purchase the  contractual currency with the payment currency and
       shall take  into account any  premium and other costs  of exchange with
       respect thereto.

14.    EXPENSES

14.01  The  Owner shall pay to any Secured  Creditor on demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the  negotiation,   preparation  and  execution  of   the  Credit
             Agreement, the Subsidiary Guaranty  and the Credit Documents  (or
             any of them); and/or

       (b)   the preserving  or  enforcing of,  or attempting  to preserve  or
             enforce,  any of  its  rights  under  the Credit  Agreement,  the
             Subsidiary Guaranty or the Credit Documents (or any of them).

14.02  The Owner shall pay  to the Trustee and the Agent on  demand all costs,
       fees  and expenses  (including,  but not  limited  to,  legal fees  and
       expenses)  and  Taxes  thereon  incurred  by  any  Secured  Creditor in
       connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms  of the Credit  Agreement, the  Subsidiary Guaranty  or the
             Credit Documents  (or  any  of  them)  requested  by  the  Owner,
             necessary or  advisable under applicable  law or relating to  the
             syndication of the Facility,  or initiated during the  occurrence
             and continuation of an Event of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the  Credit  Agreement, the  Subsidiary Guaranty  and  the Credit
             Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty and the Credit  Documents (or any of  them) may be subject  or
       give  rise and shall  indemnify the Trustee  on demand  against any and
       all  liabilities with  respect  to  or  resulting  from  any  delay  or
       omission on the part of the Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to  the Trustee hereunder shall be in  writing and shall be
       made to the following address:

                   Wilmington Trust Company
                   Rodney Square North
                   1100 North Market Street
                   Wilmington, DE  19890-0001
                   Telefax:  (302) 651-8882
                   Attention: Corporate Trust Division

                   With a copy to:

                   Jennifer L. Janss, Esq.
                   Richards, Layton & Finger
                   P.O. Box 551
                   Wilmington, DE  19899


       All  other notices  shall be  made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors and  permitted assigns  and references in  this Mortgage  to
       any of them shall be construed accordingly.

16.02  The Owner may  not assign  or transfer all  or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to Section  12.16 of the  Credit Agreement, each Bank  has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations under the Credit  Agreement on the terms  therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this   Mortgage   is   One   Hundred   Forty   Million   U.S.   Dollars
       (US$140,000,000)  of  principal  plus interest,  fees,  commissions and
       performance of mortgage covenants.   The interest  of the Owner in  the
       Rig is  100%.   The interest of  the Trustee in  the Rig is  100%.  The
       date  of maturity  is April 30,  2001, and the  discharge amount is the
       same as the  total amount plus such  other sums as shall be  payable by
       the Owner  to the  Banks under the  Credit Agreement or  the Subsidiary
       Guaranty.

18.    MISCELLANEOUS

18.01  If  at any time any one  or more of the  provisions in this Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law  or regulation,  the validity,  legality and  enforceability of the
       remaining provisions of  this Mortgage shall not be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time  and from time to time, may  delegate by power
       of attorney  or in any other manner to any person or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such  delegation may be made upon such terms  and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in  any way liable or responsible  to the Owner for any  loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for in this Mortgage shall, in the absence  of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The  Owner agrees that the Trustee shall have the liberty but shall not
       be  obliged to  take any  proceedings in the  courts of  any country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for  the purpose of any proceedings for  such enforcement the Owner
       hereby submits to the jurisdiction  of the courts of any country of the
       choice of the Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place  the Rig shall be found  lying and for the  purpose of any action
       which the Trustee may bring  before the courts of such jurisdiction  or
       other judicial  authority and for  the purpose of any  action which the
       Trustee  may bring against the Rig, any writ, notice, judgment or other
       legal process or documents may (without  prejudice to any other  method
       of service under  applicable law) be served upon the  master of the Rig
       (or upon anyone acting as the master) and such  service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner agrees  that  should the  Trustee bring  a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in connection  with this Mortgage,  no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby consents  generally in respect of any legal  action or
       proceedings arising out of or  in connection with this Mortgage to  the
       giving out  of any relief  or the  issue of  any process in  connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment  which may be made or given in such
       action or proceedings.

IN WITNESS  whereof the Owner has caused this Mortgage to be executed the  day
and year first before written.


HRB RIG CORPORATION


By_____________________________________
    Its:

                              ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )  S.S.
COUNTY OF NEW YORK       )



On this 9th day of July, 1996 before me personally appeared ____________ to me
known  who being  by me  duly  sworn did  dispose and say that  he  resides at
________________________________, that he is ____________________________  for
HRB RIG  CORPORATION, the  corporation  described in  and  which executed  the
foregoing  instrument;  and  that  he  signed his name thereto by order of the
Board of Directors of HRB RIG CORPORATION.



________________________
Notary Public


                                                                Exhibit 10.105


                                AMENDMENT NO. 1

                                      TO

                       INDENTURE OF FIRST NAVAL MORTGAGE

                  READING AND BATES BORNEO DRILLING CO. LTD.

                                      and

                    CHRISTIANIA BANK OG KREDITKASSE, agent

                                 as Mortgagee


                                CHARLEY GRAVES


                              Dated July 9, 1996

==============================================================================

             AMENDMENT NO. 1 TO INDENTURE OF FIRST NAVAL MORTGAGE


      THIS  AMENDMENT NO. 1 TO  INDENTURE OF FIRST  NAVAL MORTGAGE ("Amendment
No.  1") is made on  July 9, 1996,  between READING AND  BATES BORNEO DRILLING
CO.,   LTD.,  an  Oklahoma  corporation  with  its  principal  office  at  901
Threadneedle, Suite 200,  Houston, Texas 77079 (the  "Owner"), and CHRISTIANIA
BANK OG  KREDITKASSE NEW YORK BRANCH having an  office at 11 West 42nd Street,
New York, New York 10036 as agent for the Banks (the "Mortgagee").

WHEREAS:

(A)   The Shipowner  is the sole owner  of the whole of  offshore drilling rig
      CHARLEY GRAVES Patente  No. 6618-76-CH,  registered in the  name of  the
      Shipowner under the laws and flag of the Republic of Panama (the "Rig");

(B)   By a Credit Agreement dated  as of April 30, 1996 (as  amended, restated
      or supplemented from time to time, the "Credit Agreement") among Reading
      &  Bates Corporation,  a  Delaware corporation  ("Holdings"), Reading  &
      Bates Drilling Co., an Oklahoma  corporation (the "Borrower"), the banks
      party thereto (the  "Banks"), Credit  Lyonnais New York  Branch, as  co-
      agent (the  "Co-Agent"), and Christiania  Bank og Kreditkasse,  New York
      Branch, as  agent (the "Agent"), it was agreed, among other things, that
      the  Banks  would make  available to  the  Borrower upon  the  terms and
      conditions therein  described a reducing revolving  credit facility (the
      "Facility")  in an  aggregate  amount at  any  time outstanding  of  One
      Hundred  Million United States  Dollars (US$100,000,000),  providing for
      the making of Loans  and the issuance of, and  participation in, Letters
      of Credit as contemplated therein.

(C)   To secure the obligations  of the Borrower with respect to  the Facility
      and  its  obligations   under  the  Credit  Agreement,  the   Owner  has
      authorized, executed  and delivered  a Subsidiary Guaranty  (as amended,
      restated or supplemented  from time to time,  the "Subsidiary Guaranty")
      dated April 30,  1996 in favor of the Agent and  the Banks and to secure
      the  obligations of the Owner  under the Subsidiary  Guaranty, the Owner
      has executed and delivered to the Mortgagee an  indenture of first naval
      mortgage dated April 30, 1996 with respect to the Rig  (the "Mortgage").
      The form of the Credit Agreement and the form of the Subsidiary Guaranty
      are attached  to the Mortgage  as Exhibits 1  and 2, respectively.   The
      mortgage was  protocolized by Public Deed No. 3124, dated May 6, 1996 of
      the  First Notary Public of the Circuit  of Panama, duly recorded in the
      Public  Registry  of  Panama   at  the  Microfilm  Section  (Mercantile)
      Microjacket N-12808, Roll 50020, Frame 0002 as of June 11, 1996.

(D)   By an Amendment to  the Credit Agreement dated as  of July 9, 1996  (the
      "Amendment")  (the  form  of  which  Amendment  without  attachments  is
      attached hereto as Exhibit  1) among Holdings, the Borrower,  the Banks,
      the Co-Agent  and the Agent, it  was agreed among other  things that the
      Banks  would increase  the amount  available to  the Borrower  under the
      Facility to an aggregate amount at  any time outstanding of One  Hundred
      Forty Million  United States  Dollars (US$140,000,000) subject  to semi-
      annual reductions as set forth therein.

(E)   In  order  to  secure  its  obligations  with  respect  to  the  Secured
      Indebtedness  under  the Subsidiary  Guaranty  and  the performance  and
      observance  of and  compliance  with all  of  the covenants,  terms  and
      conditions contained in the  Mortgage, as amended hereby, and  to induce
      the Banks  to enter into the  Amendment and for other  good and valuable
      consideration,  the   receipt  and   sufficiency  of  which   is  hereby
      acknowledged by the Owner,  the Owner has duly authorized  the execution
      and delivery of this Amendment to the Indenture of  First Naval Mortgage
      under and  in accordance with the  provisions of Chapter V,  Title IV of
      Book Second  of the  Code of  Commerce and pertinent  provisions of  the
      Civil Code and other legislations of the Republic of Panama.

      NOW, THEREFORE, in consideration of  the premises and of other good  and
valuable consideration,  receipt whereof  is hereby acknowledged,  the parties
hereto agree as follows:

      1.    DEFINITIONS AND INTERPRETATION

      1.01  Terms defined in the Mortgage shall have the same  meaning as used
            herein.

      1.02  The terms "Credit Agreement"  and "Subsidiary Guaranty" as defined
in Clause 2.01 of the Mortgage and as used in the Mortgage shall be  deemed to
refer  to the  Credit Agreement  as amended  by the  Amendment and  as further
amended,  restated or  supplemented  from time  to  time, and  the  Subsidiary
Guaranty as amended, restated or supplemented from time to time.

      1.03  The term "Other Rigs" shall be amended to refer to the J.W. McLEAN
as  registered under  the  laws of  the  Republic of  Panama  of 15,453  gross
registered tons  and 4,636 net registered tons, and shall also include (i) the
offshore drilling rig  HARVEY H. WARD owned by  HRB Rig Corporation documented
under the  laws and flag of the United  States of America with Official Number
642693 of  4,121 gross tons and  3,079 net registered tons,  (ii) the offshore
drilling rig Rig  41 owned by the RB Drilling Co. documented under the laws of
the Republic of  Panama with Patente Number 22365-95 of  10,078 gross tons and
3,024 net registered tons and  (iii) the offshore drilling rig SEILLEAN  to be
acquired by RB as contemplated by the Amendment.

      1.04  Each reference  in the  Mortgage to "this  Mortgage", "hereunder",
"hereof",  "herein"  or words  of  like import  shall  mean and  refer  to the
Mortgage as amended hereby.

2.    Power of Attorney.  
      2.01  The appearing parties each  confer a special power of  attorney on
Benedetti & Benedetti, lawyers of Panama,  Republic of Panama and any partners
in  the firm authorizing such firm  or any such partner  to take all necessary
steps to record this Amendment No. 1 in the appropriate registries of the City
of Panama and to appoint any substitute under this Power of Attorney.

3.    Continuing Effect.  

      3.01  Except  as expressly amended by this Amendment No. 1, the Mortgage
shall be and remain in full force and effect.


IN WITNESS WHEREOF, the parties hereto have caused this  Amendment No. 1 to be
duly executed on the day and year first above written.


                        READING AND BATES BORNEO DRILLING CO. LTD.


                        By_____________________________
                          Name: 
                          Title:


                        CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH


                        By_____________________________
                          Name:
                          Title:



                        By_____________________________
                          Name:
                          Title:


                             NOTARIAL CERTIFICATE


I,  the  undersigned,  NOTARY PUBLIC,  duly  authorized,  admitted and  sworn,
residing and practicing in the State of New York, DO HEREBY CERTIFY that:

1.    _______________ as Attorney-in-Fact of READING AND BATES BORNEO DRILLING
      CO. LTD., INC. did sign the attached Amendment No. 1 to the Indenture of
      First Naval Mortgage  in my presence and the signature  appearing at the
      foot of said Amendment No.1 to the Indenture of First  Naval Mortgage is
      his/her authentic signature.

2.    Sufficient proof has been presented to me that he/she has  the right and
      power to  execute said Amendment No.  1 to the Indenture  of First Naval
      Mortgage on behalf of the above-mentioned corporation, as "Shipowner".

IN TESTIMONY WHEREOF,  I have hereunto subscribed my name  and affixed my seal
of office this ____ day of July, 1996.




                                    __________________________________
                                                Notary Public



                             NOTARIAL CERTIFICATE


I,  the  undersigned,  NOTARY PUBLIC,  duly  authorized,  admitted and  sworn,
residing and practicing in the State of New York, DO HEREBY CERTIFY that:


1.    ____________________   as  Vice   President  of   CHRISTIANIA  BANK   OG
      KREDITKASSE, NEW  YORK BRANCH did sign  the attached Amendment No.  1 to
      the Indenture of First  Naval Mortgage in my presence and  the signature
      appearing at  the foot of said Amendment No. 1 to the Indenture of First
      Naval Mortgage is his/her authentic signature.

2.    Sufficient proof has been presented to  me that he/she has the right and
      power to  execute said Amendment No.  1 to the Indenture  of First Naval
      Mortgage on behalf of the above-mentioned corporation, as "Mortgagee".

IN TESTIMONY WHEREOF, I have  hereunto subscribed my name and affixed  my seal
of office this ____ day of July, 1996.


                                    __________________________________
                                                Notary Public


                             NOTARIAL CERTIFICATE


I,  the  undersigned,  NOTARY PUBLIC,  duly  authorized,  admitted  and sworn,
residing and practicing in the State of New York, DO HEREBY CERTIFY that:


1.    ____________________   as   Vice  President   of  CHRISTIANIA   BANK  OG
      KREDITKASSE, NEW YORK BRANCH  did sign the  attached Amendment No. 1  to
      the Indenture of First Naval  Mortgage in my presence and  the signature
      appearing at the foot of said Amendment No. 1 to  the Indenture of First
      Naval Mortgage is his/her authentic signature.

2.    Sufficient proof  has been presented to me that he/she has the right and
      power to  execute said Amendment No.  1 to the Indenture  of First Naval
      Mortgage on behalf of the above-mentioned corporation, as "Mortgagee".

IN  TESTIMONY WHEREOF, I have hereunto subscribed  my name and affixed my seal
of office this ____ day of July, 1996.



                                    __________________________________
                                                Notary Public


                                                                Exhibit 10.106



                                  AMENDMENT

                                     TO

                           FIRST PREFERRED MORTGAGE

                              Dated July 9, 1996

                         READING & BATES DRILLING CO.

                                  in favor of


WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Trustee


                                  JACK BATES


      AMENDMENT to  FIRST PREFERRED MORTGAGE  made and  given this 9th  day of
July, 1996 between READING &  BATES DRILLING CO. (herein called the  "Owner"),
an  Oklahoma corporation with offices at 901 Threadneedle, Suite 200, Houston,
Texas 77079, and WILMINGTON TRUST COMPANY, a Delaware banking corporation, not
in its individual  capacity but solely as indenture trustee  for the Banks and
as  mortgagee (the "Trustee") with offices at Rodney Square North, Wilmington,
Delaware 19890-0001.

WHEREAS:

(A)   The  Owner is the sole owner of  the whole of the offshore drilling unit
      JACK BATES  documented under the laws  and flag of the  United States of
      America  with Official Number 906283 of 19,928 gross registered tons and
      14,948 net registered tons (the "Rig").

(B)   By  a Credit Agreement dated as of  April 30, 1996 (as amended, restated
      or supplemented from time to time, the "Credit Agreement") among Reading
      & Bates Corporation,  a Delaware corporation ("Holdings"),  the Owner as
      borrower, the banks  party thereto  (the "Banks"),  Credit Lyonnais  New
      York  Branch, as  co-agent  (the "Co-Agent"),  and  Christiania Bank  og
      Kreditkasse, New York  Branch, as  agent (the "Agent"),  it was  agreed,
      among other things,  that the  Banks would make  available to the  Owner
      upon the  terms and  conditions therein  described a  reducing revolving
      credit  facility (the  "Facility") in  an aggregate  amount at  any time
      outstanding    of   One   Hundred    Million   United   States   Dollars
      (US$100,000,000), providing for the making of Loans and the issuance of,
      and participation in, Letters of Credit as contemplated therein.

(C)   To secure the obligations of the  Owner with respect to the Facility and
      its obligations under the  Credit Agreement, the Owner has  executed and
      delivered to the Trustee a first preferred mortgage dated April 30, 1996
      with  respect to  the Rig  (the "Mortgage")  which  was recorded  at the
      National Vessel Documentation Center  on April 30, 1996 in Book 96-21 at
      Page 91.  The form  of the Credit Agreement is attached to  the Mortgage
      as Exhibit 1.

(D)   By an Amendment to  the Credit Agreement dated  as of July 9, 1996  (the
      "Amendment"),  the  form  of  which  Amendment  without  attachments  is
      attached hereto as  Exhibit 1 among Holdings, the Owner,  the Banks, the
      Co-Agent and the Agent, it was agreed among other things  that the Banks
      would  increase the amount available to  the Owner under the Facility to
      an aggregate amount at any time outstanding of One Hundred Forty Million
      United States Dollars (US$140,000,000) subject to semi-annual reductions
      as set forth therein.

(E)   In  order  to  secure  its  obligations  with  respect  to  the  Secured
      Indebtedness  under  the  Credit   Agreement  and  the  performance  and
      observance  of and  compliance  with all  of  the covenants,  terms  and
      conditions contained in the  Mortgage, as amended hereby, and  to induce
      the Banks  to enter into the  Amendment and for other  good and valuable
      consideration,  the   receipt  and   sufficiency  of  which   is  hereby
      acknowledged by the Owner,  the Owner has duly authorized  the execution
      and delivery of this Amendment to the Mortgage under and pursuant to the
      United  States Ship  Mortgage Act,  1920, as  amended, recodified  at 46
      U.S.C. 31301 et seq.

      NOW THIS AMENDMENT WITNESSETH AND IT IS HEREBY AGREED:

1.    DEFINITIONS AND INTERPRETATION

      1.01  Terms defined in the Mortgage shall have the same meaning as  used
            herein.

      1.02  The  terms "Credit  Agreement" as  defined in  Clause 1.01  of the
Mortgage and as  used in the Mortgage shall  be deemed to refer to  the Credit
Agreement  as amended  by the Amendment  and as  further amended,  restated or
supplemented from time to time. 

      1.03  The term "Other Rigs" shall be amended to refer to the J.W. McLEAN
as registered  under the  laws of  the  Republic of  Panama   of 15,453  gross
registered tons and 4,636 net registered tons, and shall also  include (i) the
jack-up drilling rig HARVEY  H. WARD owned  by HRB Rig Corporation  documented
under the laws and flag  of the United States of America with  Official Number
642693 of  4,121 gross tons and  3,079 net registered tons,  (ii) the offshore
drilling  rig Rig 41 owned by the RB Drilling Co. documented under the laws of
the Republic of Panama with  Patente Number 22365-95 of 10,078 gross  tons and
3,024  net registered tons and (iii) the  offshore drilling rig SEILLEAN to be
acquired by the RB as contemplated by the Amendment.

      2.    CONFIRMATION OF MORTGAGE

      2.01  To secure the obligations of the Owner under the Credit Agreement,
the Owner confirms  and ratifies the granting of a mortgage  on and a security
interest in the Rig pursuant to the Clause 3.01 of the Mortgage.

      3.    RECORDING

      3.01  For the purpose of  recording this Amendment, the total  amount of
the  Mortgage is increased to U.S.$140,000,000 (One Hundred Forty Million U.S.
Dollars)  of principal,  plus  interest, fees,  commission and  performance of
mortgage  covenants.   The interest  of the  Owner in  the Rig  is 100%.   The
interest of the Trustee in the Rig is 100%.  The discharge amount  remains the
same as the total amount plus such other sums as shall be payable by the Owner
to the Banks under the Credit Agreement.

      4.    RATIFICATION

      4.01  Except as expressly amended  hereby, the Mortgage remains  in full
force and effect. 


      IN  WITNESS  WHEREOF, the  Owner and  the  Mortgagee have  executed this
Amendment  on the date  written below,  to be effective  as of the  date first
written above.

READING & BATES DRILLING CO.



By:_______________________

Date:_______________



WILMINGTON TRUST COMPANY, as Indenture Trustee



By:________________________

Date:_______________


                                ACKNOWLEDGEMENT



STATE OF NEW YORK      )
                       )  S.S.
COUNTY OF NEW YORK     )


                  On  this 9th day of July, 1996 before me personally appeared
_________________ to me known who  being by me duly sworn did dispose  and say
that he  resides at  ____________________________, that  he is  __________ for
READING &  BATES DRILLING CO., the corporation described in and which executed
the foregoing instrument; and  that he signed his name thereto by order of the
Board of Directors of said corporation.



                          ___________________________
                                 Notary Public



                                ACKNOWLEDGEMENT


STATE OF NEW YORK      )
                       )  S.S.
COUNTY OF NEW YORK     )



                  On  this 9th day of July, 1996 before me personally appeared
_________________ to me known who being by  me duly sworn did dispose and  say
that he  resides at  ____________________________,  that he  is __________  of
WILMINGTON  TRUST COMPANY, the corporation described in and which executed the
foregoing instrument;  and that he  signed his  name thereto by  order of  the
Board of Directors of said corporation.




                          ___________________________
                                 Notary Public



                                                                Exhibit 10.107



                                  AMENDMENT

                                     TO

                           FIRST PREFERRED MORTGAGE

                              Dated July 9, 1996


                        READING & BATES EXPLORATION CO.

                                  in favor of

WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Trustee

                                 D. R. STEWART


      AMENDMENT to  FIRST PREFERRED MORTGAGE  made and  given this 9th  day of
July,  1996 between  READING  &  BATES  EXPLORATION  CO.  (herein  called  the
"Owner"), with offices at  901 Threadneedle, Suite 200, Houston,  Texas 77079,
and  WILMINGTON  TRUST COMPANY,  a Delaware  banking  corporation, not  in its
individual capacity  but solely  as indenture  trustee for  the  Banks and  as
mortgagee  (the "Trustee") with  offices at  Rodney Square  North, Wilmington,
Delaware 19890-0001.

WHEREAS:

(A)   The  Owner is the sole owner of  the whole of the offshore drilling unit
      D.R. STEWART  documented under the laws and flag of the United States of
      America with Official Number  626904 of 6,494 gross registered  tons and
      5,834 net registered tons (the "Rig").

(B)   By  a Credit Agreement dated as of  April 30, 1996 (as amended, restated
      or supplemented from time to time, the "Credit Agreement") among Reading
      &  Bates Corporation,  a  Delaware corporation  ("Holdings"), Reading  &
      Bates Drilling Co., an Oklahoma corporation  (the "Borrower"), the banks
      party thereto (the  "Banks"), Credit  Lyonnais New York  Branch, as  co-
      agent  (the "Co-Agent"), and  Christiania Bank og  Kreditkasse, New York
      Branch, as agent (the  "Agent"), it was agreed, among other things, that
      the  Banks would  make  available to  the Borrower  upon  the terms  and
      conditions therein  described a reducing revolving  credit facility (the
      "Facility")  in an  aggregate  amount at  any  time outstanding  of  One
      Hundred Million  United States  Dollars (US$100,000,000),  providing for
      the making of Loans and the  issuance of, and participation in,  Letters
      of Credit as contemplated therein.

(C)   To  secure the obligations of the  Borrower with respect to the Facility
      and   its  obligations  under  the   Credit  Agreement,  the  Owner  has
      authorized, executed  and delivered  a Subsidiary Guaranty  (as amended,
      restated or supplemented from time  to time, the "Subsidiary  Guaranty")
      dated April 30, 1996 in favor of  the Agent and the Banks and to  secure
      the  obligations of the Owner  under the Subsidiary  Guaranty, the Owner
      has executed and  delivered to  the Trustee a  first preferred  mortgage
      dated April 30, 1996 with respect to the Rig (the  "Mortgage") which was
      recorded at the National  Vessel Documentation Center on April  30, 1996
      in Book 96-21 at Page 89.  The form of the Credit Agreement and the form
      of the Subsidiary  Guaranty are attached to  the Mortgage as Exhibits  1
      and 2, respectively.

(D)   By an Amendment to  the Credit Agreement dated  as of July 9,  1996 (the
      "Amendment"),  the  form  of  which  Amendment  without  attachments  is
      attached  hereto as Exhibit 1  among Holdings, the  Borrower, the Banks,
      the Co-Agent  and the Agent, it  was agreed among other  things that the
      Banks  would increase  the amount  available to  the Borrower  under the
      Facility to an aggregate  amount at any time outstanding  of One Hundred
      Forty Million  United States  Dollars (US$140,000,000) subject  to semi-
      annual reductions as set forth therein.

(E)   In  order  to  secure  its  obligations  with  respect  to  the  Secured
      Indebtedness  under  the Subsidiary  Guaranty  and  the performance  and
      observance  of and  compliance  with all  of  the covenants,  terms  and
      conditions contained in the  Mortgage, as amended hereby, and  to induce
      the Banks  to enter into the  Amendment and for other  good and valuable
      consideration,  the   receipt  and   sufficiency  of  which   is  hereby
      acknowledged by the Owner,  the Owner has duly authorized  the execution
      and delivery of this Amendment to the Mortgage under and pursuant to the
      United  States Ship  Mortgage Act,  1920, as  amended, recodified  at 46
      U.S.C. 31301 et seq.

      NOW THIS AMENDMENT WITNESSETH AND IT IS HEREBY AGREED:

1.    DEFINITIONS AND INTERPRETATION

      1.01  Terms defined in  the Mortgage shall have the same meaning as used
            herein.

      1.02  The terms "Credit Agreement"  and "Subsidiary Guaranty" as defined
in Clause 1.01 of the Mortgage and as used in the Mortgage shall be  deemed to
refer  to the  Credit Agreement  as amended  by the  Amendment and  as further
amended,  restated or  supplemented  from time  to  time, and  the  Subsidiary
Guaranty as amended, restated or supplemented from time to time. 

      1.03  The term "Other Rigs" shall be amended to refer to the J.W. McLEAN
as  registered under  the laws  of the  Republic  of Panama   of  15,453 gross
registered tons  and 4,636 net registered tons, and shall also include (i) the
jack-up drilling  rig HARVEY H. WARD  owned by HRB Rig  Corporation documented
under the laws and flag of  the United States of America with Official  Number
642693 of  4,121 gross tons and  3,079 net registered tons,  (ii) the offshore
drilling rig Rig 41 owned  by the RB Drilling Co. documented under the laws of
the Republic of  Panama with Patente Number 22365-95 of  10,078 gross tons and
3,024 net registered tons and  (iii) the offshore drilling rig SEILLEAN  to be
acquired by the RB as contemplated by the Amendment.

      2.    CONFIRMATION OF MORTGAGE

      2.01  To secure  the  obligations  of  the Owner  under  the  Subsidiary
Guaranty,  the Owner confirms and ratifies the granting of a mortgage on and a
security interest in the Rig pursuant to the Clause 3.01 of the Mortgage.

      3.    RECORDING

      3.01  For the purpose of  recording this Amendment, the total  amount of
the  Mortgage is increased to U.S.$140,000,000 (One Hundred Forty Million U.S.
Dollars)  of  principal, plus  interest, fees,  commission and  performance of
mortgage  covenants.   The interest  of the  Owner in  the Rig  is 100%.   The
interest of the  Trustee in the Rig is 100%.  The discharge amount remains the
same as the total amount plus such other sums as shall be payable by the Owner
to the Banks under the Credit Agreement or the Subsidiary Guaranty.

      4.    RATIFICATION

      4.01  Except as expressly  amended hereby, the Mortgage remains  in full
force and effect. 



      IN  WITNESS  WHEREOF, the  Owner and  the  Mortgagee have  executed this
Amendment  on the date  written below,  to be effective  as of the  date first
written above.

READING & BATES EXPLORATION CO.



By:_______________________

Date:_______________



WILMINGTON TRUST COMPANY, as Indenture Trustee



By:________________________

Date:_______________



                                ACKNOWLEDGEMENT



STATE OF NEW YORK      )
                       )  S.S.
COUNTY OF NEW YORK     )


                  On  this 9th day of July, 1996 before me personally appeared
_________________ to me known who  being by me duly sworn did dispose  and say
that he  resides at  ____________________________, that  he is  __________ for
READING  & BATES  EXPLORATION  CO., the  corporation  described in  and  which
executed the  foregoing instrument;  and that  he signed  his name thereto  by
order of the Board of Directors of said corporation.


                          ___________________________
                                 Notary Public



                                ACKNOWLEDGEMENT

STATE OF NEW YORK      )
                       )  S.S.
COUNTY OF NEW YORK     )


                  On  this 9th day of July, 1996 before me personally appeared
_________________ to me known who being by  me duly sworn did dispose and  say
that he  resides at  ____________________________,  that he  is __________  of
WILMINGTON  TRUST COMPANY, the corporation described in and which executed the
foregoing instrument;  and that he  signed his  name thereto by  order of  the
Board of Directors of said corporation.



                          ___________________________
                                 Notary Public


                                                                Exhibit 10.108

 
                                AMENDMENT

                                    TO

                           FIRST PREFERRED MORTGAGE

                              Dated July 9, 1996


                        READING & BATES EXPLORATION CO.


                                  in favor of


WILMINGTON TRUST COMPANY, not in its individual capacity but solely as Trustee


                                  W. D. KENT


      AMENDMENT to FIRST  PREFERRED MORTGAGE  made and given  this 9th day  of
July,  1996 between  READING  &  BATES  EXPLORATION  CO.  (herein  called  the
"Owner"), with offices at  901 Threadneedle, Suite 200, Houston,  Texas 77079,
and  WILMINGTON  TRUST COMPANY,  a Delaware  banking  corporation, not  in its
individual capacity  but solely  as indenture  trustee  for the  Banks and  as
mortgagee (the  "Trustee") with  offices at  Rodney Square  North, Wilmington,
Delaware 19890-0001.

WHEREAS:

(A)   The Owner  is the sole owner of the whole  of the offshore drilling unit
      W. D. KENT documented  under the laws and  flag of the United States  of
      America with Official Number  583169 of 5,383 gross registered  tons and
      4,185 net registered tons (the "Rig").

(B)   By a Credit Agreement dated  as of April 30, 1996 (as  amended, restated
      or supplemented from time to time, the "Credit Agreement") among Reading
      &  Bates Corporation,  a  Delaware corporation  ("Holdings"), Reading  &
      Bates Drilling Co., an Oklahoma  corporation (the "Borrower"), the banks
      party thereto (the  "Banks"), Credit  Lyonnais New York  Branch, as  co-
      agent (the  "Co-Agent"), and Christiania  Bank og Kreditkasse,  New York
      Branch, as  agent (the "Agent"), it was agreed, among other things, that
      the  Banks  would make  available to  the  Borrower upon  the  terms and
      conditions therein  described a reducing revolving  credit facility (the
      "Facility")  in an  aggregate  amount at  any  time outstanding  of  One
      Hundred  Million United States  Dollars (US$100,000,000),  providing for
      the making of Loans  and the issuance of, and  participation in, Letters
      of Credit as contemplated therein.

(C)   To secure the obligations  of the Borrower with respect to  the Facility
      and  its  obligations   under  the  Credit  Agreement,  the   Owner  has
      authorized, executed  and delivered  a Subsidiary Guaranty  (as amended,
      restated or supplemented  from time to time,  the "Subsidiary Guaranty")
      dated April 30,  1996 in favor of the Agent and  the Banks and to secure
      the  obligations of the Owner  under the Subsidiary  Guaranty, the Owner
      has executed and  delivered to  the Trustee a  first preferred  mortgage
      dated April  30, 1996 with respect to the Rig (the "Mortgage") which was
      recorded at the National  Vessel Documentation Center on April  30, 1996
      in Book 96-21 at Page 87.  The form of the Credit Agreement and the form
      of the  Subsidiary Guaranty are attached  to the Mortgage as  Exhibits 1
      and 2, respectively.

(D)   By an Amendment  to the Credit Agreement  dated as of July 9,  1996 (the
      "Amendment"),  the  form  of  which  Amendment  without  attachments  is
      attached  hereto as Exhibit 1  among Holdings, the  Borrower, the Banks,
      the Co-Agent  and the Agent, it  was agreed among other  things that the
      Banks  would increase  the amount  available to  the Borrower  under the
      Facility to  an aggregate amount at any  time outstanding of One Hundred
      Forty Million  United States  Dollars (US$140,000,000) subject  to semi-
      annual reductions as set forth therein.

(E)   In  order  to  secure  its  obligations  with  respect  to  the  Secured
      Indebtedness  under  the Subsidiary  Guaranty  and  the performance  and
      observance  of and  compliance  with all  of  the covenants,  terms  and
      conditions contained in the  Mortgage, as amended hereby, and  to induce
      the Banks  to enter into the  Amendment and for other  good and valuable
      consideration,  the   receipt  and   sufficiency  of  which   is  hereby
      acknowledged by the Owner,  the Owner has duly authorized  the execution
      and delivery of this Amendment to the Mortgage under and pursuant to the
      United  States Ship  Mortgage Act,  1920, as  amended, recodified  at 46
      U.S.C. 31301 et seq.

      NOW THIS AMENDMENT WITNESSETH AND IT IS HEREBY AGREED:

1.    DEFINITIONS AND INTERPRETATION

      1.01  Terms defined in the Mortgage shall have the  same meaning as used
            herein.

      1.02  The terms "Credit Agreement"  and "Subsidiary Guaranty" as defined
in Clause 1.01 of the Mortgage and as used in the Mortgage shall be  deemed to
refer  to the  Credit Agreement  as amended  by the  Amendment and  as further
amended,  restated or  supplemented  from time  to  time, and  the  Subsidiary
Guaranty as amended, restated or supplemented from time to time. 

      1.03  The term "Other Rigs" shall be amended to refer to the J.W. McLEAN
as  registered under  the laws  of  the Republic  of Panama   of  15,453 gross
registered tons  and 4,636 net registered tons, and shall also include (i) the
jack-up drilling rig  HARVEY H. WARD  owned by HRB Rig  Corporation documented
under the laws and  flag of the United States of America  with Official Number
642693 of  4,121 gross tons and  3,079 net registered tons,  (ii) the offshore
drilling rig Rig 41 owned by the  RB Drilling Co. documented under the laws of
the Republic of  Panama with Patente Number 22365-95 of  10,078 gross tons and
3,024 net registered tons and  (iii) the offshore drilling rig SEILLEAN  to be
acquired by the RB as contemplated by the Amendment.

      2.    CONFIRMATION OF MORTGAGE

      2.01  To  secure  the  obligations of  the  Owner  under  the Subsidiary
Guaranty, the Owner confirms and ratifies the granting of a mortgage on  and a
security interest in the Rig pursuant to the Clause 3.01 of the Mortgage.

      3.    RECORDING

      3.01  For the purpose of  recording this Amendment, the total  amount of
the  Mortgage is increased to U.S.$140,000,000 (One Hundred Forty Million U.S.
Dollars) of  principal, plus  interest,  fees, commission  and performance  of
mortgage  covenants.   The interest  of the  Owner in  the Rig  is 100%.   The
interest of the Trustee in  the Rig is 100%.  The discharge amount remains the
same as the total amount plus such other sums as shall be payable by the Owner
to the Banks under the Credit Agreement or the Subsidiary Guaranty.

      4.    RATIFICATION

      4.01  Except as  expressly amended hereby, the Mortgage  remains in full
force and effect. 

      IN  WITNESS  WHEREOF, the  Owner and  the  Mortgagee have  executed this
Amendment  on the date  written below,  to be effective  as of the  date first
written above.

READING & BATES EXPLORATION CO.



By:_______________________

Date:_______________



WILMINGTON TRUST COMPANY, as Indenture Trustee



By:________________________

Date:_______________


                                ACKNOWLEDGEMENT



STATE OF NEW YORK      )
                       )  S.S.
COUNTY OF NEW YORK     )


                  On  this 9th day of July, 1996 before me personally appeared
_________________ to me known who  being by me duly sworn did dispose  and say
that he  resides at  ____________________________, that  he is  __________ for
READING  & BATES  EXPLORATION  CO., the  corporation  described in  and  which
executed the  foregoing instrument;  and that  he signed  his name thereto  by
order of the Board of Directors of said corporation.



                          ___________________________
                                 Notary Public



                                ACKNOWLEDGEMENT


STATE OF NEW YORK      )
                       )  S.S.
COUNTY OF NEW YORK     )



                  On  this 9th day of July, 1996 before me personally appeared
_________________ to me known who being by  me duly sworn did dispose and  say
that he  resides at  ____________________________,  that he  is __________  of
WILMINGTON  TRUST COMPANY, the corporation described in and which executed the
foregoing instrument;  and that he  signed his  name thereto by  order of  the
Board of Directors of said corporation.





                          ___________________________
                                 Notary Public


                                                               Exhibit 10.109 


                      COLLATERAL ASSIGNMENT OF INSURANCE


      HRB  RIG CORPORATION,  an Oklahoma  corporation (hereinafter  called the
"Assignor"), the owner of  the United States registered offshore  drilling rig
HARVEY H. WARD  (the "Rig"), in consideration of One  Dollar ($1) lawful money
of the United States of America and other good and valuable consideration, the
receipt  and sufficiency of which are hereby acknowledged, has sold, assigned,
transferred, set over, and granted a security interest, and by this instrument
does  sell, assign,  transfer, set  over  and grant  a security  interest unto
Wilmington Trust  Company, not in its  individual capacity but  as Trustee for
the Banks (as that  term is defined in the Credit Agreement, as defined below)
(hereinafter called  the "Assignee")  and unto the  Assignee's successors  and
assigns,  to it and its successors and assigns own proper use and benefit, and
as collateral  security for the full  and prompt payment when  due (whether at
the  stated maturity,  by acceleration  or otherwise)  of all  obligations and
liabilities  of the  Assignor,  now  existing  or hereafter  incurred,  under,
arising out of  or in  connection with any  Credit Document (as  that term  is
defined in the Credit Agreement, as defined below) to  which it is a party and
the due performance and compliance by the Assignor with the terms of each such
Credit Document, all  right, title and interest of the  Assignor under, in and
to   the  following  (all  of  the  following,  collectively,  the  "Insurance
Collateral"):    (i)  all   insurances  (including,  without  limitation,  all
certificates of entry in  protection and indemnity and war  risks associations
or  clubs)  in  respect  of the  Rig,  whether  heretofore,  now  or hereafter
effected, and all  renewals of or  replacements for the  same, (ii) except  as
hereinafter  provided, all  claims, returns  of premium  and other  moneys and
claims  for  moneys  due and  to  become  due  under  or in  respect  of  said
insurances, (iii) all other rights of the Assignor under or in respect of said
insurances  and (iv) any proceeds  of any of  the foregoing.   It is expressly
agreed that  anything herein  contained to the  contrary notwithstanding,  the
Assignor  shall remain  liable under  said  insurances to  perform all  of the
obligations assumed by it thereunder and the Assignee shall have no obligation
or liability (including, without limitation, any obligation  or liability with
respect  to  the  payment  of  premiums,  calls  or  assessments)  under  said
insurances by  reason of or arising  out of this instrument  of assignment nor
shall  the  Assignee be  required or  obligated in  any  manner to  perform or
fulfill any obligations of  the Assignor under or pursuant  to said insurances
or to make any payment or to make any inquiry as to the nature  or sufficiency
of any payment received by it or to  present or file any claim, or to take any
other action  to collect or  enforce the payment of  any amounts which  or may
have been assigned to it or to which it may be entitled hereunder at  any time
or times.

      This  Assignment is made pursuant to the  First Amendment, dated July 9,
1996,  to the  Credit Agreement,  dated April  30, 1996  (as the  same  may be
amended,  modified or supplemented from time to time, the "Credit Agreement"),
by and  among Reading & Bates  Corporation, Reading & Bates  Drilling Co., the
Banks  (as  defined therein)  and Christiania  Bank  og Kreditkasse,  New York
Branch, as Agent.

      The  Assignor hereby  constitutes  the Assignee  and its  successors and
assigns, the Assignor's true and lawful attorney, with full power (in the name
of the Assignor or  otherwise) to ask, require, demand,  receive, compound and
give  acquittance for  any and  all moneys and  claims for  moneys due  and to
become due  under or arising out of said  insurances, to endorse any checks or
other instruments or orders in connection therewith and to file  any claims or
to take any action or institute any proceedings which the Assignee may deem to
be  necessary  or  advisable in  the  premises;  provided,  however, that  the
Assignee  shall not  take any  action pursuant  to the  power granted  by this
paragraph unless an  Event of  Default under the  Credit Agreement shall  have
occurred and be continuing.   Such appointment of the Assignee as  attorney is
irrevocable and coupled with an interest. 

      The  Assignor hereby covenants and agrees to procure that notice of this
Assignment, in  the  form  of Annex  I  hereto, shall  be  duly given  to  all
underwriters  and  that  where the  consent  of  any  underwriter is  required
pursuant  to  any of  the insurances  assigned hereby,  such consent  shall be
obtained  and evidence thereof shall be given  to the Assignee, and that there
shall be duly endorsed upon all slips, cover notes, policies, certificates  of
entry  or other  instruments issued  or to  be issued  in connection  with the
insurances assigned hereby such clauses as to additional named assured or loss
payees  set forth in Annex I hereto.  In all cases, unless otherwise agreed in
writing by the  Assignee, such  slips, cover notes,  notices, certificates  of
entry or other instruments shall show the Assignee and the Banks as additional
named assured  and shall provide  that there will  be no recourse  against the
Assignee for payment of premiums, calls or assessments.

      The powers  and authority to the  Assignee herein have been  given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees  that at any time  and from time  to time, upon  the
written,  reasonable request of the  Assignee, the Assignor  will promptly and
duly execute and deliver any and all such further instruments and documents as
the  Assignee may reasonably  require in obtaining  the full  benefits of this
Assignment and of the rights and powers herein granted.

      The Assignor hereby  warrants and represents that it has not assigned or
pledged,  and hereby covenants that, without the prior written consent thereof
of  the Assignee,  so long as  this instrument  of assignment  shall remain in
effect, it will not assign or pledge the whole or any part of the right, title
and interest hereby assigned to anyone other than the Assignee, its successors
or assigns, and  it will not take  or omit to take  any action, the taking  or
omission of  which  might  result  in  an alteration  or  impairment  of  said
insurances or  this  Assignment, or  of  any of  the  rights created  by  said
insurances or this Assignment.

      All notices or other communications which are required to be made to the
Assignee hereunder shall be made by airmail postage prepaid letter, telefax or
by telex, confirmed by letter to:

                  Wilmington Trust Company
                  Rodney Square North
                  Wilmington, Delaware  19890
                  Attn:  Corporate Trust Division
                  Fax No.:  (302) 651-8882

                  With copies to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888

                  Jennifer L. Janss, Esq.
                  Richard Layton & Finger
                  P.O. Box 551 
                  Wilmington, Delaware  19899

or at such  other address  as any such  party may designate  by notice to  the
others.

      Any  payments made pursuant  to the terms  hereof shall be  made to such
account  as may,  from  time  to  time,  be designated  by  the  Assignee  for
distribution in accordance with the Vessel Trust Indenture, the Mortgages, the
Credit Agreement and the other Credit Documents.

      THIS ASSIGNMENT SHALL  BE GOVERNED BY THE INTERNAL LAWS  OF THE STATE OF
NEW YORK, WITHOUT REFERENCE TO  PRINCIPLES OF CONFLICTS OF LAW.   THE ASSIGNOR
HEREBY  IRREVOCABLY  WAIVES ALL  RIGHTS  TO A  TRIAL  BY JURY  IN  ANY ACTION,
PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING  TO THIS ASSIGNMENT, THE
OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

      None  of the  terms and  conditions of  this Assignment may  be changed,
waived, modified  or varied in  any manner  whatsoever unless in  writing duly
signed by  the Assignor  and  the Assignee  (with the  consent  of either  the
Required Banks (as defined in the Credit Agreement) or, to the extent required
by Section 12.12 of the Credit Agreement, all of the Banks).

      In the event  that the  Insurance Collateral or  any portion thereof  is
sold in  connection  with a  sale  permitted by  Section  8.02 of  the  Credit
Agreement or is otherwise released at the direction of the  Required Banks (or
all  the  Banks,  to the  extent  required  by  Section  12.12 of  the  Credit
Agreement),  the Assignee,  at the request  and expense of  the Assignor, will
duly assign, transfer and  deliver to the Assignor (without recourse and with-
out  any representation  or warranty)  such of  the Insurance  Collateral (and
releases therefor) as is then  being (or has been) so sold or  released and as
may be in the possession of the Assignee and has not theretofore been released
pursuant to  this Assignment.    At any  time the  Assignor  desires that  the
Insurance  Collateral or  a portion  thereof be  released as provided  in this
paragraph, the Assignor shall deliver to  the Assignee a certificate signed by
an Authorized Officer  (as defined in the  Credit Agreement) stating that  the
release of the Insurance  Collateral or portion thereof is  permitted pursuant
to this paragraph.

      The  Assignor  hereby  authorizes  the  Assignee  to  execute  and  file
Financing  Statements  (Form UCC-1)  and  amendments  thereto  as provided  in
Article 9 of the Uniform Commercial Code.


      IN WITNESS WHEREOF, the Assignor has  caused this Assignment to be  duly
executed the 9th day of July, 1996.


                                    HRB RIG CORPORATION


                                    By: ________________________
                                        Title:


                                                               ANNEX I       
                                                                 to          
                                                       Assignment of Insurances


                                 NOTICE OF ASSIGNMENT

          HRB  Rig  Corporation  (the "Owner"),  the  owner  of the  United
    States flag  offshore drilling rig Harvey  H. Ward (the  "Rig"), HEREBY
    GIVES NOTICE  that by a Collateral  Assignment of Insurance  dated July
    9, 1996  and made  between the Owner  and Wilmington Trust  Company, as
    Trustee  (the  "Assignee") for  itself  and  certain other  Banks  (the
    "Assignee"), the  Owner assigned  to the  Assignee all  of the  Owner's
    right, title  and interest in and to all  insurances and the benefit of
    all insurances now or  hereafter taken out in respect of the Rig.  This
    Notice of Assignment  and the Loss Payable Clauses attached  hereto are
    to be  indorsed on  all policies and  certificates of entry  evidencing
    such insurance.


                                        HRB RIG CORPORATION



                                        By                        
                                           Title:


                           LOSS PAYABLE CLAUSES

                            Hull and War Risks


          Loss,  if any,  payable to Wilmington  Trust Company,  as Trustee
    for  the Banks, for  distribution by it  to said  Banks and to  HRB Rig
    Corporation,  Owner,  as  their  respective  interests  may  appear, or
    order,  except that, unless Underwriters have been otherwise instructed
    by  notice in  writing  from  the Trustee,  in  the  case of  any  loss
    involving  any  damage  to  the  Rig  or  liability  of  the  Rig,  the
    Underwriters may  pay directly  for the  repair, salvage, liability  or
    other charges involved or,  if the Owner of the Rig shall have repaired
    the damage and  paid the cost thereof,  or discharged the  liability or
    paid the  salvage or other charges,  then the Underwriters may  pay the
    Owner  as reimbursement  to the extent  the Owner has  paid the covered
    loss.

          In  the event  of  an actual  or  constructive  total loss  or  a
    compromised  or arranged  total  loss  or  requisition  of  title,  all
    insurance  payment  therefor   shall  be  paid  to  the   Trustee,  for
    distribution by it in accordance with the terms of  the first preferred
    United States mortgage relating to the Rig.


                             PROTECTION AND INDEMNITY

         Loss, if  any, payable  to Wilmington  Trust Company, as  Trustee
   for  the Banks  for distribution  by  it to  the Banks  and to  HRB Rig
   Corporation,  Owner,  as  their  respective  interests  may  appear, or
   order, except that, unless and  until Underwriters have been  otherwise
   instructed by notice in  writing from the Trustee, any loss may be paid
   directly to the  person to whom the liability covered by this insurance
   has been  incurred, or to the Owner of the Rig  to reimburse it for any
   loss, damage or expenses incurred by it  and covered by this insurance,
   provided that  in respect  of any  claim in  excess of $1,000,000,  the
   Underwriters  shall  have first  received  evidence that  the liability
   insured against has been discharged.


                                                               Exhibit 10.110 


                      COLLATERAL ASSIGNMENT OF INSURANCE


      RB  DRILLING  CO.,  an  Oklahoma  corporation  (hereinafter  called  the
"Assignor"),  the owner of the Panamanian registered offshore drilling rig Rig
41 (the "Rig"), in consideration of One Dollar ($1) lawful money of the United
States of America  and other good and valuable consideration,  the receipt and
sufficiency of which are hereby acknowledged, has sold, assigned, transferred,
set over, and  granted a security interest, and by  this instrument does sell,
assign, transfer, set over and grant a security interest unto Christiania Bank
og  Kreditkasse, New York Branch, not in  its individual capacity but as Agent
for the  Banks (as that term  is defined in  the Credit Agreement,  as defined
below)  (hereinafter called the "Assignee") and unto the Assignee's successors
and  assigns, to it and its successors and assigns own proper use and benefit,
and as collateral  security for the full and prompt  payment when due (whether
at the stated maturity,  by acceleration or otherwise) of  all obligations and
liabilities  of the  Assignor,  now  existing  or hereafter  incurred,  under,
arising out of  or in  connection with any  Credit Document (as  that term  is
defined in the Credit Agreement, as defined below) to  which it is a party and
the due performance and compliance by the Assignor with the terms of each such
Credit Document, all  right, title and interest of the  Assignor under, in and
to   the  following  (all  of  the  following,  collectively,  the  "Insurance
Collateral"):    (i)  all   insurances  (including,  without  limitation,  all
certificates of entry in  protection and indemnity and war  risks associations
or  clubs)  in  respect  of the  Rig,  whether  heretofore,  now  or hereafter
effected, and all  renewals of or  replacements for the  same, (ii) except  as
hereinafter  provided, all  claims, returns  of premium  and other  moneys and
claims  for  moneys  due and  to  become  due  under  or in  respect  of  said
insurances, (iii) all other rights of the Assignor under or in respect of said
insurances  and (iv) any proceeds  of any of  the foregoing.   It is expressly
agreed that  anything herein  contained to the  contrary notwithstanding,  the
Assignor  shall remain  liable under  said  insurances to  perform all  of the
obligations assumed by it thereunder and the Assignee shall have no obligation
or liability (including, without limitation, any obligation  or liability with
respect  to  the  payment  of  premiums,  calls  or  assessments)  under  said
insurances by  reason of or arising  out of this instrument  of assignment nor
shall  the  Assignee be  required or  obligated in  any  manner to  perform or
fulfill any obligations of  the Assignor under or pursuant  to said insurances
or to make any payment or to make any inquiry as to the nature  or sufficiency
of any payment received by it or to  present or file any claim, or to take any
other action  to collect or  enforce the payment of  any amounts which  or may
have been assigned to it or to which it may be entitled hereunder at  any time
or times.

      This  Assignment is made pursuant to the  First Amendment, dated July 9,
1996,  to the  Credit Agreement,  dated April  30, 1996  (as the  same  may be
amended,  modified or supplemented from time to time, the "Credit Agreement"),
by and  among Reading & Bates  Corporation, Reading & Bates  Drilling Co., the
Banks  (as  defined therein)  and Christiania  Bank  og Kreditkasse,  New York
Branch, as Agent.

      The  Assignor hereby  constitutes  the Assignee  and its  successors and
assigns, the Assignor's true and lawful attorney, with full power (in the name
of the Assignor or  otherwise) to ask, require, demand,  receive, compound and
give  acquittance for  any and  all moneys and  claims for  moneys due  and to
become due  under or arising out of said  insurances, to endorse any checks or
other instruments or orders in connection therewith and to file  any claims or
to take any action or institute any proceedings which the Assignee may deem to
be  necessary  or  advisable in  the  premises;  provided,  however, that  the
Assignee  shall not  take any  action pursuant  to the  power granted  by this
paragraph unless an  Event of  Default under the  Credit Agreement shall  have
occurred and be continuing.   Such appointment of the Assignee as  attorney is
irrevocable and coupled with an interest. 

      The  Assignor hereby covenants and agrees to procure that notice of this
Assignment, in  the  form  of Annex  I  hereto, shall  be  duly given  to  all
underwriters  and  that  where the  consent  of  any  underwriter is  required
pursuant  to  any of  the insurances  assigned hereby,  such consent  shall be
obtained  and evidence thereof shall be given  to the Assignee, and that there
shall be duly endorsed upon all slips, cover notes, policies, certificates  of
entry  or other  instruments issued  or to  be issued  in connection  with the
insurances assigned hereby such clauses as to additional named assured or loss
payees  set forth in Annex I hereto.  In all cases, unless otherwise agreed in
writing by the  Assignee, such  slips, cover notes,  notices, certificates  of
entry or other instruments shall show the Assignee and the Banks as additional
named assured  and shall provide  that there will  be no recourse  against the
Assignee for payment of premiums, calls or assessments.

      The powers  and authority to the  Assignee herein have been  given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees  that at any time  and from time  to time, upon  the
written,  reasonable request of the  Assignee, the Assignor  will promptly and
duly execute and deliver any and all such further instruments and documents as
the  Assignee may reasonably  require in obtaining  the full  benefits of this
Assignment and of the rights and powers herein granted.

      The Assignor hereby  warrants and represents that it has not assigned or
pledged,  and hereby covenants that, without the prior written consent thereof
of  the Assignee,  so long as  this instrument  of assignment  shall remain in
effect, it will not assign or pledge the whole or any part of the right, title
and interest hereby assigned to anyone other than the Assignee, its successors
or assigns, and  it will not take  or omit to take  any action, the taking  or
omission of  which  might  result  in  an alteration  or  impairment  of  said
insurances or  this  Assignment, or  of  any of  the  rights created  by  said
insurances or this Assignment.

      All notices or other communications which are required to be made to the
Assignee hereunder shall be made by airmail postage prepaid letter, telefax or
by telex, confirmed by letter to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888

or  at such other  address as any  such party  may designate by  notice to the
others.

      Any payments  made pursuant to  the terms hereof  shall be made  to such
account  as  may,  from  time  to time,  be  designated  by  the  Assignee for
distribution  in accordance with the  Mortgages, the Credit  Agreement and the
other Credit Documents.

      THIS  ASSIGNMENT SHALL BE GOVERNED BY THE  INTERNAL LAWS OF THE STATE OF
NEW YORK, WITHOUT  REFERENCE TO PRINCIPLES OF CONFLICTS OF  LAW.  THE ASSIGNOR
HEREBY IRREVOCABLY  WAIVES  ALL RIGHTS  TO  A TRIAL  BY  JURY IN  ANY  ACTION,
PROCEEDING OR COUNTERCLAIM ARISING  OUT OF OR RELATING TO THIS ASSIGNMENT, THE
OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

      None  of the  terms and conditions  of this  Assignment may  be changed,
waived, modified  or varied in  any manner whatsoever  unless in writing  duly
signed  by  the Assignor  and the  Assignee (with  the  consent of  either the
Required Banks (as defined in the Credit Agreement) or, to the extent required
by Section 12.12 of the Credit Agreement, all of the Banks).

      In  the event that  the Insurance Collateral  or any portion  thereof is
sold  in connection  with  a sale  permitted  by Section  8.02  of the  Credit
Agreement or  is otherwise released at the direction of the Required Banks (or
all  the Banks,  to  the  extent  required  by Section  12.12  of  the  Credit
Agreement),  the Assignee, at  the request and  expense of  the Assignor, will
duly assign, transfer and deliver to the Assignor (without recourse  and with-
out  any representation  or warranty)  such of  the Insurance  Collateral (and
releases therefor)  as is then being (or has been)  so sold or released and as
may be in the possession of the Assignee and has not theretofore been released
pursuant to  this Assignment.    At any  time the  Assignor  desires that  the
Insurance Collateral  or a portion  thereof be  released as  provided in  this
paragraph, the Assignor shall deliver to the Assignee a certificate signed  by
an Authorized  Officer (as defined in  the Credit Agreement)  stating that the
release of the Insurance  Collateral or portion thereof is  permitted pursuant
to this paragraph.

      The  Assignor  hereby  authorizes  the  Assignee  to  execute  and  file
Financing  Statements  (Form UCC-1)  and  amendments  thereto as  provided  in
Article 9 of the Uniform Commercial Code.


      IN WITNESS WHEREOF, the  Assignor has caused this Assignment  to be duly
executed the 9th day of July, 1996.


                                    RB DRILLING CO.



                                    By: ________________________
                                        Its:

                                                                ANNEX I       
                                                                  to          
                                                      Assignment of Insurances



                             NOTICE OF ASSIGNMENT


      RB Drilling Co. (the "Owner"), the owner of the Panamanian flag offshore
drilling rig  Rig 41  (the "Rig"),  HEREBY GIVES NOTICE  that by  a Collateral
Assignment of  Insurance dated July  9, 1996  and made between  the Owner  and
Christiania Bank  og Kreditkasse, New  York Branch, as Agent  (the "Assignee")
for itself and certain other Banks (the "Assignee"), the Owner assigned to the
Assignee all of the Owner's right, title and interest in and to all insurances
and the benefit of all insurances now or hereafter taken out in respect of the
Rig.  This  Notice of Assignment and the Loss  Payable Clauses attached hereto
are to be indorsed on  all policies and certificates of entry  evidencing such
insurance.


                        RB DRILLING CO.



                        By                        
                           Its:



                             LOSS PAYABLE CLAUSES

                              Hull and War Risks


      Loss,  if any,  payable to  Christiania  Bank og  Kreditkasse, New  York
Branch, as Agent for the Banks, for distribution by it to said Banks and to RB
Drilling  Co., Owner,  as their  respective  interests may  appear, or  order,
except that, unless  Underwriters have been otherwise instructed  by notice in
writing from the Agent, in  the case of any  loss involving any damage to  the
Rig or liability of the Rig, the Underwriters may pay directly for the repair,
salvage, liability or other charges involved or, if the Owner of the Rig shall
have  repaired  the  damage and  paid  the  cost  thereof, or  discharged  the
liability or paid the salvage or other charges, then the  Underwriters may pay
the Owner as reimbursement to the extent the Owner has paid the covered loss.

      In the event of an actual or constructive total loss or a compromised or
arranged total  loss or requisition  of title, all insurance  payment therefor
shall  be paid to  the Agent,  for distribution by  it in accordance  with the
terms of the first preferred Panamanian mortgage relating to the Rig.




                           PROTECTION AND INDEMNITY

      Loss,  if any,  payable to  Christiania  Bank og  Kreditkasse, New  York
Branch, as  Agent for the Banks for distribution by  it to the Banks and to RB
Drilling  Co., Owner,  as their  respective  interests may  appear, or  order,
except that, unless  and until Underwriters have been  otherwise instructed by
notice in writing from the Agent, any loss may be paid  directly to the person
to whom the liability  covered by this insurance has been  incurred, or to the
Owner of the Rig to  reimburse it for any loss, damage or expenses incurred by
it  and covered by this  insurance, provided that  in respect of  any claim in
excess of $1,000,000, the Underwriters shall have first received evidence that
the liability insured against has been discharged.




                                                                Exhibit 10.111



                    AMENDED AND RESTATED INDENTURE OF TRUST

                           Dated as of July 9, 1996

                   READING & BATES DRILLING CO., as Borrower

                                    - and -

           READING & BATES EXPLORATION CO., as Subsidiary Guarantor

                                    - and -

                 HRB RIG CORPORATION, as Subsidiary Guarantor

                                    - and -

                           WILMINGTON TRUST COMPANY,
                                  as Trustee

==============================================================================

                               TABLE OF CONTENTS
                                                                          Page

INDENTURE OF TRUST  . . . . . . . . . . . . . . . . . . . . . . . . . .  - 1 -
RECITALS OF THE BORROWER AND THE SUBSIDIARY GUARANTOR . . . . . . . . .  - 1 -
GRANTING CLAUSE . . . . . . . . . . . . . . . . . . . . . . . . . . . .  - 2 -

ARTICLE 1
DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION . . . . . . . .  - 3 -


Section 1.01.     Definitions . . . . . . . . . . . . . . . . . . . . .  - 3 -
Section 1.02.     Notices . . . . . . . . . . . . . . . . . . . . . . .  - 5 -
Section 1.03.     Waiver of Notice  . . . . . . . . . . . . . . . . . .  - 6 -
Section 1.04.     Effect of Headings; Table of Contents . . . . . . . .  - 6 -
Section 1.05.     Severability Clause; Further Assurances . . . . . . .  - 6 -
Section 1.06.     Governing Law; Jurisdiction . . . . . . . . . . . . .  - 6 -
Section 1.07.     Appointment of Process Agent  . . . . . . . . . . . .  - 6 -
Section 1.08.     Counterparts  . . . . . . . . . . . . . . . . . . . .  - 7 -
Section 1.09.     Survival  . . . . . . . . . . . . . . . . . . . . . .  - 7 -
Section 1.10.     No Transfer in Violation of Shipping Act  . . . . . .  - 7 -
Section 1.11.     Monies  of Trustee  Received by  the Borrower  and the
                        Subsidiary Guarantors . . . . . . . . . . . . .  - 7 -
Section 1.12.     Binding Effect  . . . . . . . . . . . . . . . . . . .  - 7 -

ARTICLE 2
REPRESENTATIONS, WARRANTIES AND COVENANTS . . . . . . . . . . . . . . .  - 7 -

Section 2.01  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  - 7 -
(a)   Organization and Existence  . . . . . . . . . . . . . . . . . . .  - 8 -
(b)   Power and Authority . . . . . . . . . . . . . . . . . . . . . . .  - 8 -
(c)   Due Authorization, Execution and Enforceability . . . . . . . . .  - 8 -
(d)   No Violations . . . . . . . . . . . . . . . . . . . . . . . . . .  - 8 -
(e)   Liens and Security Interests  . . . . . . . . . . . . . . . . . .  - 8 -
(f)   Notices of Defaults . . . . . . . . . . . . . . . . . . . . . . .  - 8 -

Section 2.02  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  - 8 -
(a)   Organization Existence  . . . . . . . . . . . . . . . . . . . . .  - 8 -
(b)   Power and Authority . . . . . . . . . . . . . . . . . . . . . . .  - 9 -
(c)   Due Authorization, Execution and Enforceability . . . . . . . . .  - 9 -
(d)   No Violations . . . . . . . . . . . . . . . . . . . . . . . . . .  - 9 -

ARTICLE 3
REMEDIES UPON AN EVENT OF DEFAULT . . . . . . . . . . . . . . . . . . .  - 9 -

Section 3.01.     Remedies  . . . . . . . . . . . . . . . . . . . . . .  - 9 -
Section 3.02.     Suits for Enforcement by Trustee  . . . . . . . . . .  - 9 -
Section 3.03.     Enforcement of Claims by Trustee  . . . . . . . . . .  - 9 -
Section 3.04.     Application of Monies Collected After Default . . . . - 10 -

Section 3.05.     Rights and Remedies Cumulative  . . . . . . . . . . . - 10 -
Section 3.06.     Delay or Omission Not Waiver  . . . . . . . . . . . . - 10 -
Section 3.07.     Discontinuance of Enforcement Proceedings . . . . . . - 11 -
Section 3.08.     Control by the Required Banks . . . . . . . . . . . . - 11 -
Section 3.09.     Undertaking for Costs . . . . . . . . . . . . . . . . - 11 -
Section 3.10.     Waiver of Demand, etc . . . . . . . . . . . . . . . . - 11 -

ARTICLE 4
THE TRUSTEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 12 -

Section 4.01.     Certain Duties and Liabilities  . . . . . . . . . . . - 12 -
Section 4.02.     Certain Rights of Trustee . . . . . . . . . . . . . . - 13 -
Section 4.03.     Not Responsible for Recitals  . . . . . . . . . . . . - 13 -
Section 4.04.     Money Held in Trust . . . . . . . . . . . . . . . . . - 14 -
Section 4.05.     Compensation, Reimbursement and Indemnification . . . - 14 -
Section 4.06.     Corporate Trustee Required; Eligibility . . . . . . . - 14 -
Section 4.07.     Disqualification,  Removal  or   Resignation  of   the
                        Trustee; Successor Trustees . . . . . . . . . . - 15 -
Section 4.08.     Co-trustees and Separate Trustees . . . . . . . . . . - 17 -

ARTICLE 5
SATISFACTION AND DISCHARGE  . . . . . . . . . . . . . . . . . . . . . . - 18 -

Section 5.01.     General . . . . . . . . . . . . . . . . . . . . . . . - 18 -
Section 5.02.     Survival of Certain Obligations . . . . . . . . . . . - 18 -

ARTICLE 6
SUPPLEMENTAL INDENTURES . . . . . . . . . . . . . . . . . . . . . . . . - 18 -

Section 6.01.     Waivers  and Supplemental  Indentures with  Consent of
                        Banks . . . . . . . . . . . . . . . . . . . . . - 18 -
Section 6.02.     Execution of Supplemental Indentures  . . . . . . . . - 18 -
Section 6.03.     Effect of Supplemental Indentures . . . . . . . . . . - 19 -

ARTICLE 7
INSTRUCTIONS OF THE AGENT OR REQUIRED BANKS . . . . . . . . . . . . . . - 19 -

Section 7.01.     Instructions of the Agent or Required Banks.  . . . . - 19 -

ARTICLE 8
LIMITATION OF LIABILITY . . . . . . . . . . . . . . . . . . . . . . . . - 19 -

Section 8.01.     Limitation of Liability of Wilmington Trust Company.  - 19 -

==============================================================================

                               INDENTURE OF TRUST


      THIS AMENDED AND RESTATED INDENTURE OF TRUST (this "Indenture") dated as
of  July  9,  1996, among  (i)  READING  &  BATES  DRILLING CO.,  an  Oklahoma
corporation  as borrower (the  "Borrower"); (ii)  READING &  BATES EXPLORATION
CO., an Oklahoma corporation as subsidiary guarantor, ("Exploration") and  HRB
RIG CORPORATION,  an Oklahoma corporation  as subsidiary guarantor  ("HRB" and
together with Exploration collectively the "Subsidiary Guarantors"); and (iii)
WILMINGTON  TRUST  COMPANY,  a  Delaware  banking   corporation,  not  in  its
individual capacity but solely as indenture trustee (the "Trustee").

             RECITALS OF THE BORROWER AND THE SUBSIDIARY GUARANTOR

      A.    By  a Credit Agreement  dated as of  April 30, 1996  ( as amended,
restated  or supplemented  from time  to time,  the "Credit  Agreement") among
Reading   &  Bates   Corporation,   a  Delaware   corporation,  as   guarantor
("Holdings"),  the Borrower,  the banks  party thereto  (the "Banks"),  Credit
Lyonnais  New York Branch, as  co-agent, and Christiania  Bank og Kreditkasse,
New  York branch,  as agent  (the "Agent"),  the Banks  made available  to the
Borrower  upon the terms and conditions therein described a reducing revolving
credit   facility  (the  "Facility")  in  an  aggregate  amount  at  any  time
outstanding  of One  Hundred  Million United  States Dollars  (US$100,000,000)
providing for  the  making  of Loans  (as  defined in  the  Credit  Agreement)
evidenced  by a promissory note of the  Borrower (the "Note") and the issuance
of,  and  participation in,  Letters  of  Credit  (as  defined in  the  Credit
Agreement) as contemplated therein.

      B.    Pursuant  to  the  Credit  Agreement,  Exploration  for  good  and
valuable  consideration  authorized,  executed   and  delivered  a  Subsidiary
Guaranty dated April 30, 1996 (the "Exploration Subsidiary Guaranty") in favor
of the Agent  guaranteeing the performance by the Borrower  of its obligations
under the Credit Agreement and  the other Credit Documents (as defined  in the
Credit Agreement).

      C.    Pursuant  to the Credit Agreement and to secure the obligations of
the  Borrower  thereunder, (i)  the Borrower  executed  and delivered  a first
preferred mortgage on the U.S. documented semi-submersible drilling  unit JACK
BATES; and (ii)  Exploration executed and delivered first  preferred mortgages
(together with the  first preferred mortgage on the  JACK BATES, the "Original
Mortgages")  on each  of (1) the  U.S. documented jack-up  drilling unit, D.R.
STEWART and (2) the U.S. documented offshore drilling unit W.D. KENT (together
with the JACK BATES, the "Original Vessels").  

      D.    To  secure  their  respective  obligations under  (i)  the  Credit
Agreement  and  the Note  and (ii)  the  Exploration Subsidiary  Guaranty, the
Borrower  and  Exploration  have executed  and  delivered  to  the Trustee  an
Indenture of Trust dated as of April 30, 1996 (the "Original Indenture").

      E.    By an Amendment  dated as of July 9, 1996  to the Credit Agreement
(the  "Amendment"), it  was agreed  among  other things  that the  Banks would
increase the amount available to  the Borrower under the Facility  (as defined
in the Credit Agreement) to an aggregate amount at any time outstanding of One
Hundred Forty Million  United States Dollars ($140,000,000),  subject to semi-
annual reductions as set forth therein.

      F.    Pursuant  to the Credit Agreement and to secure the obligations of
the Borrower thereunder, (i) the Borrower  is required to execute and  deliver
an  amendment to  first  preferred  mortgage  on  the  U.S.  documented  semi-
submersible  drilling unit JACK BATES; (ii) Exploration is required to execute
and deliver amendments  to the first  preferred mortgages on  each of (1)  the
U.S.  documented  jack-up  drilling  unit,  D.R.  STEWART  and  (2)  the  U.S.
documented  offshore drilling  unit W.D.  KENT and  (iii)  HRB is  required to
execute  and  deliver a  subsidiary  guaranty (together  with  the Exploration
Subsidiary  Guaranty,  the  "Subsidiary  Guaranties"  and  a  first  preferred
mortgage (together with the  Original Mortgages, the "Mortgages") on  the U.S.
documented  jack-up unit HARVEY H.  WARD (together with  the Original Vessels,
the "Vessels").  As certain of the Banks are not citizens of the United States
of America  within the  meaning of  Section 2  of the  Shipping Act,  1916, as
amended, and  are ineligible to be  mortgagees of the Vessels,  the Banks have
requested the  Trustee to hold, pursuant  to the terms of  this Indenture, the
Mortgages.

      G.    All things have been  done which are necessary to  constitute this
Indenture  a valid security  agreement and  contract for  the security  of the
respective obligations of the  Borrower and each of the  Subsidiary Guarantors
under  (i)  the  Credit  Agreement  and  the  Note  and  (ii)  the  Subsidiary
Guaranties,  respectively,  in  accordance  with   the  terms  of  the  Credit
Agreement, the Note, the Subsidiary Guaranties and this Indenture.

                                GRANTING CLAUSE
               NOW, THEREFORE, THIS INDENTURE WITNESSETH, that,

      To secure the  payment of the Loans, the Unpaid  Drawings (as defined in
the  Credit  Agreement) and  interest thereon  and  all other  Obligations (as
defined  below)  and  the performance  of  the  covenants  therein and  herein
contained, and in  consideration of the premises and of  the Banks' making the
Facility available to the Borrower, and other good and valuable consideration,
the Borrower and the Subsidiary Guarantors  by these presents do grant,  sell,
convey, assign,  transfer, pledge, set over  and confirm unto the  Trustee for
the benefit of the Banks, continuing security interests in all of their right,
title and interest in and all benefits in, under and to all of  the following,
but as security only for the payment of the Obligations:

      1.    The  U.S.  documented vessel  JACK BATES,  as  granted by  a first
            preferred mortgage, as amended, on the JACK BATES by the Borrower;

      2.    The U.S. documented  vessel D.R.  STEWART, as granted  by a  first
            preferred   mortgage,  as   amended,  on   the  D.R.   STEWART  by
            Exploration;

      3.    The  U.S. documented  vessel  W.D. KENT,  as  granted by  a  first
            preferred mortgage, as amended, on the W.D. KENT by Exploration;

      4.    The U.S. documented vessel HARVEY  H. WARD, as granted by  a first
            preferred mortgage on the HARVEY H. WARD by HRB; and

      5.    Proceeds of the foregoing.

      The  Trustee shall  hold the  Mortgages as  collateral security  for the
Obligations, subject to the terms of this Indenture.

      AND IT IS  HEREBY COVENANTED  AND DECLARED that  the security  interests
granted above  are to  be  held and  applied by  the Trustee,  subject to  the
further  covenants, conditions and trusts  herein set forth,  and the Borrower
and the Subsidiary  Guarantors do hereby  covenant and agree  to and with  the
Trustee, for the benefit of the Banks as follows:


                                   ARTICLE 1
            DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

Section 1.01.     Definitions.

      (a)   For all purposes of this Indenture, except as otherwise  expressly
provided herein or  unless the context otherwise requires,  in addition to the
words  and expressions  defined in  the recitals  hereto, the  following terms
shall have the following meanings:

      "Actual Knowledge" has the meaning specified in Section 4.01(h).

      "Business Day" shall  have the  meaning ascribed thereto  in the  Credit
      Agreement.

      "Collateral" means the mortgages  listed in the granting clause  of this
      Indenture and proceeds thereof.

      "Dollars",  "dollars"  or  "$"  means  lawful  and  freely  transferable
      currency of the United States.

      "Default  Rate" shall have the rate of interest calculated in accordance
      with Section 1.07(b) of the Credit Agreement.

      "Event  of Default"  has  the meaning  ascribed  thereto in  the  Credit
      Agreement.

      "Instructions" has the meaning set forth in Section 7.01.

      "MARAD" means  the United States Department  of Transportation, Maritime
      Administration.

      "Obligations"  shall means the obligations  of the Borrower  and each of
      the  Subsidiary Guarantors  with  respect to  (i)  the full  and  prompt
      payment  when due  of (x) the  principal of  interest on  the Loans made
      under the Credit Agreement, and all reimbursement obligations and Unpaid
      Drawings with respect to  the Letters of Credit issued under  the Credit
      Agreement  and (y)  all other  obligations and  indebtedness (including,
      without  limitation,  indemnities,  Fees   (as  defined  in  the  Credit
      Agreement)  and  interest  thereon)  of  the  Borrower  to  the  Secured
      Creditors  (as  defined  herein),  whether  now  existing  or  hereafter
      incurred  under, arising  out  of  or  in  connection  with  the  Credit
      Agreement and the  other Credit  Documents and the  due performance  and
      compliance  by  the  Borrower with  all  of  the  terms, conditions  and
      agreements  contained  in  the Credit  Agreement  and  the  other Credit
      Documents;  (ii) any and  all sums advanced  by the Trustee  in order to
      preserve  the  Collateral  (as  hereinafter  defined)  or  preserve  its
      security  interest  in  the  Collateral;  (iii)  in  the  event  of  any
      proceeding  for  the  collection  or enforcement  of  any  indebtedness,
      obligations,  or liabilities of the Borrower or either of the Subsidiary
      Guarantors referred  to in clause (i)  above, after an  Event of Default
      shall  have occurred and be  continuing, the reasonable  expenses of the
      Trustee of re-taking, holding,  preparing for sale or lease,  selling or
      otherwise  disposing  of  or realizing  on  the  Collateral,  or of  any
      exercise  by  the  Trustee  of   its  rights  hereunder,  together  with
      reasonable  attorneys' fees of counsel  to the Trustee  and court costs;
      and  (iv)  all amounts  paid  by  any  Indemnitee  (as  defined  in  the
      Mortgages) as to which  such Indemnitee has the right  to reimbursement.
      It  is  acknowledged and  agreed  that  the  Obligations  shall  include
      extensions of credit  of the types described  above, whether outstanding
      on the date  of this Indenture or  extended from time to time  after the
      date of this Indenture.

      "Officer's Certificate" means (i) when used with respect to the Borrower
      or  either of  the Subsidiary  Guarantors, a  certificate signed  by the
      president,  the  chief  executive   officer,  any  vice  president,  the
      secretary,  any  assistant secretary,  the  treasurer  or any  assistant
      treasurer of the  Borrower or  the Subsidiary Guarantors  and (ii)  when
      used with respect to the Trustee,  a certificate signed by a Responsible
      Officer of the Trustee.

      "Person" means any individual, corporation, partnership,  joint venture,
      joint-stock company, trust, unincorporated organization or government or
      any agency or political subdivision thereof.

      "Required  Banks"  has  the  meaning  ascribed  thereto  in  the  Credit
      Agreement.

      "Responsible  Officer", when used with respect to the Trustee, means any
      officer  with  direct  responsibility  for the  administration  of  this
      Indenture and also means,  with respect to a particular  corporate trust
      matter, any other officer to whom such matter is referred because of his
      knowledge of  and familiarity with the  particular subject. "Responsible
      Officer",  when  used with  respect to  the  Borrower or  either  of the
      Subsidiary  Guarantors, means  the  president, any  vice president,  the
      secretary,  any  assistant secretary,  the  treasurer  or any  assistant
      treasurer  of the  Borrower or  the Subsidiary  Guarantors or  any other
      officer  or  assistant   officer  of  the  Borrower  or  the  Subsidiary
      Guarantors customarily  performing functions similar to  those performed
      by any of the above-designated officers.

      "Secured Creditors" shall  mean the  Trustee, the Banks,  the Letter  of
      Credit  Issuer  and  the  Agent  under  and  as  defined  in  the Credit
      Agreement.

      "Security  Documents" shall  have the  meaning  ascribed thereto  in the
      Credit Agreement.

      "Supplemental  Indenture"  means  any  indenture  supplemental  to  this
      Indenture entered into pursuant to Article 6.

      "United States" means the United States of America.

      "Unpaid  Drawings"  has  the  meaning  ascribed  thereto  in the  Credit
      Agreement.

      (b)   For  purposes  of  this  Indenture,   unless  otherwise  expressly
provided or unless the  context otherwise, requires, all references  herein to
Articles, Sections or other subdivisions, unless otherwise specified, refer to
the corresponding Articles, Sections and other subdivisions of this Indenture,
and  the terms "hereof, "herein",  hereby" hereafter" and  "herewith" refer to
this Indenture.

      (c)   The terms  defined in this  Article include the plural  as well as
the singular.

      (d)   All other terms  used in  this Indenture and  not defined in  this
Indenture which  are defined by  reference herein  to the Credit  Agreement or
other instruments, have the meanings assigned to them  in the Credit Agreement
or such other instruments.

      (e)   All agreements referred to in this  Article I and in the  Recitals
of this  Indenture mean  such agreements  as originally  executed or,  if duly
amended or supplemented, as so amended or supplemented.

Section 1.02.     Notices.

      (a)   All notices  or other communications  required or permitted  to be
made  hereunder to the Borrower,  the Subsidiary Guarantors,  the Trustee, the
Agent or  the Banks shall  be sufficiently  given if  in writing  and made  or
delivered  by hand  or by certified  or registered  mail, postage  prepaid, by
telex or telecopy, addressed  to the particular parties as  provided below, or
to such other  addresses as such  parties may hereafter  specify by a  written
notice to such other parties (and  with respect to any notice or communication
to the Trustee, with a copy to the Agent):

Borrower/Subsidiary     READING & BATES CORPORATION
Guarantors:             901 Threadneedle, Suite 200
                        Houston, TX  77079

                        Telefax: (713) 496-0285
                        Attention: Chief Financial Officer


Trustee:                WILMINGTON TRUST COMPANY
                        Rodney Square North
                        1100 North Market Street
                        Wilmington, DE 19890-0001
                        Telefax: (302) 651-8882
                        Attention:  Corporate Trust Division

                        With a copy to:

                        Jennifer L. Janss, Esq.
                        Richards, Layton & Finger
                        P.O. Box 551
                        Wilmington, DE 19899


Notices to the Agent shall be addressed to:

                        CHRISTIANIA BANK OG KREDITKASSE, 
                        New York Branch
                        11 West 42nd Street, 7th Floor
                        New York, NY 10036
                        Telefax: (212) 827-4888
                        Attention: Loan Administration

Notices to the  Banks shall be addressed as provided in Annex II to the Credit
Agreement.

Section 1.03.     Waiver of Notice.

      Where this Indenture provides for notice in any manner, such  notice may
be waived  in writing by  the person entitled  to receive such  notice, either
before or  after the event,  and such waiver shall  be the equivalent  of such
notice.


Section 1.04.     Effect of Headings; Table of Contents.                

      The table  of contents, the titles  of the Articles and  the headings of
the Sections and  paragraphs are not a part of this Indenture and shall not be
deemed to affect the meaning or construction of any of its provisions.

Section 1.05.     Severability Clause; Further Assurances.

      In case any  provision of this Indenture or any  other Security Document
shall  be  invalid, illegal  or  unenforceable,  the  validity,  legality  and
enforceability  of the  remaining provisions  of this  Indenture or  any other
Security  Document shall not  in any way  be affected or  impaired thereby. In
case this Indenture or any other Security Document, or any provision hereof or
thereof, shall be  deemed invalid,  illegal or unenforceable,  in whole or  in
part, by reason  of any  present or future  law or any  decision of any  court
having jurisdiction, or if the documents at any time held by the Trustee shall
be deemed  by the  Trustee in  the reasonable  exercise  of its  duties to  be
insufficient for  any reason to implement the rights and powers granted to the
Trustee  herein or  any other Security  Document, then,  from time  to time on
demand of  the Trustee, the  Borrower and  the Subsidiary Guarantors  will do,
execute,  acknowledge and deliver, or cause to be done, executed, acknowledged
and  delivered, such  other  and further  assurances and  documents as  in the
opinion of  the Trustee may  reasonably be required  to create or  confirm the
security interests purported to be created by the Granting Clause hereof or to
perfect the security interest  of the Trustee therein, or otherwise  to obtain
or maintain the full benefits of this Indenture and the Mortgages.

Section 1.06.     Governing Law; Jurisdiction.

      This  Indenture  shall  be  deemed  to  be  a  contract made  under  the
substantive laws  of the  State of  New York  and for  all  purposes shall  be
construed  in accordance  with  the  internal  laws  of  said  State,  without
reference to principles of conflicts  of law.  This Indenture may  be enforced
in the federal  or state courts in  the State of New  York or any other  court
having  jurisdiction.   The  Borrower and  each  of the  Subsidiary Guarantors
hereby  irrevocably submits  itself to  the  nonexclusive jurisdiction  of the
United States District  Court for the  Southern District of  New York and  the
courts of the State of New York located in the City and County of New York for
such purpose.  In addition thereto,  the Borrower  and each of  the Subsidiary
Guarantors irrevocably waives,  to the  fullest extent permitted  by law,  any
objection which it may now or hereafter have to the laying of the venue of any
such  proceeding  brought  in  any  such court  or  any  claim  that  any such
proceeding  brought in  any such  court has  been  brought in  an inconvenient
forum.

Section 1.07.     Appointment of Process Agent.

      The Borrower  and  each of  the  Subsidiary Guarantors  hereby  appoints
Prentice  Hall Corporation, 500 Central Avenue, Albany, New York 12206-2290 as
its agent to accept service  of process in any proceeding on its behalf in the
State of New York  and acknowledges that the purpose  of this provision is  to
provide that  service upon such firm at its  offices in Albany, New York shall
have the  same effect as  if each of the  Borrower and each  of the Subsidiary
Guarantors had been personally served in the State of New York.

Section 1.08.     Counterparts.

      This Indenture may  be executed in  any number of counterparts,  each of
which  shall be an original;  but such counterparts  shall together constitute
but one and the same instrument.

Section 1.09.     Survival.

      All  representations,  warranties,   covenants  and  agreements   herein
contained or made in writing  in connection with any Security  Documents shall
survive the execution of this  Indenture and shall continue in full  force and
effect until the  Indebtedness secured hereby or thereby shall  have been paid
in full, and  the same shall bind  and inure to the benefit  of the respective
successors  and assigns  of the  Borrower, the  Subsidiary Guarantors  and the
Trustee.

Section 1.10.     No Transfer in Violation of Shipping Act.

      Notwithstanding any  other provision herein  to the contrary,  except to
the extent permitted  by law, no sale, transfer or other disposition of any of
the Vessels, or any interest therein, may be made to any  person not a citizen
of the United  States within  the meaning of  Section 2  of the Shipping  Act,
1916, as amended,  without the approval of the Secretary  of Transportation of
the United States or pursuant to an exemption therefrom.

Section 1.11.     Monies  of   Trustee  Received  by  the   Borrower  and  the
Subsidiary Guarantors.

      Any monies  which may from time  to time be received by  the Borrower or
either of the Subsidiary Guarantors which should have been paid to the Trustee
hereunder  shall  be so  received  in  trust for  the  Trustee,  shall not  be
commingled with  other  funds of  the  Borrower or  either  of the  Subsidiary
Guarantors, as the case may be, and shall promptly be remitted to the Trustee.

Section 1.12.     Binding Effect.

      All  the covenants, promises, stipulations and agreements of each of the
Borrower  and each of the  Subsidiary Guarantors in  this Indenture shall bind
each  of  the Borrower  and  each  of  the  Subsidiary  Guarantors  and  their
respective  successors and  assigns, and  shall inure  to the  benefit of  the
Trustee and its  successors and assigns,  whether so expressed  or not.   This
Indenture is for the sole benefit of the Borrower,  the Subsidiary Guarantors,
the Trustee  and the Banks and their respective successors and assigns, and no
other party shall have any right hereunder.



                                   ARTICLE 2
                   REPRESENTATIONS, WARRANTIES AND COVENANTS

Section 2.01.   Each  of the  Borrower and each  of the  Subsidiary Guarantors
represents  and warrants to  the Trustee as  of the date  hereof and covenants
with the Trustee that:

      (a)   Organization and Existence. Each  of the Borrower and each  of the
Subsidiary Guarantors  was duly  organized and  is now  validly existing as  a
corporation under the  laws of the State of Oklahoma  with power and authority
to conduct its business  as the same is presently being conducted. Each of the
Borrower and each of  the Subsidiary Guarantors shall maintain  such existence
so long as this Indenture remains in effect.

      (b)   Power  and Authority.  Each  of  the  Borrower  and  each  of  the
Subsidiary Guarantors had and has legal  power and authority to enter into and
carry out the terms of this Indenture. 

      (c)   Due  Authorization, Execution  and Enforceability.  This Indenture
has been duly authorized by all necessary corporate action on the part of each
of the Borrower and each of the Subsidiary Guarantors, has  been duly executed
and delivered  by each of the  Borrower and each of  the Subsidiary Guarantors
and constitutes, in  accordance with its  terms, the legal, valid  and binding
agreements enforceable against each of the Borrower and each of the Subsidiary
Guarantors,   except  to   the  extent   limited  by   applicable  bankruptcy,
reorganization, insolvency,  moratorium or  other laws of  general application
relating to or affecting the enforcement of creditors' rights as  from time to
time in effect and general equitable principles.

      (d)   No Violations. The  consummation of the  transactions contemplated
by,  and  compliance by  each  of  the Borrower  and  each  of the  Subsidiary
Guarantors  with all the  terms and provisions  of, this Indenture  do not and
will not violate any provisions of the Certificate  of Incorporation or Bylaws
of either of the Borrower or either of the Subsidiary Guarantors, and will not
result in  a breach of  the terms and provisions  of, or constitute  a default
under,  any agreement  or  undertaking  by  the  Borrower  or  the  Subsidiary
Guarantors, or by  which either of them or any  of their respective properties
is bound, or any order  of any court or  administrative agency entered in  any
proceedings to which the Borrower or either of the Subsidiary Guarantors is or
has been a party or violate any applicable statute, rule or regulation.

      (e)   Liens and Security Interests.

            (1)   The security interest granted by this Indenture constitutes,
a  valid perfected  assignment  of and  security  interest in  the  properties
assigned hereby having  a priority over any  other security interests  in such
property.

            (2)   Except pursuant to this Indenture  (or as permitted by  this
Indenture)  or the  Mortgages  (or as  permitted  by the  Mortgages),  neither
Borrower  nor either  of the  Subsidiary Guarantors  has assigned,  pledged or
otherwise  granted a security  interest in or  lien on, and  shall not assign,
pledge or otherwise grant a security interest in or lien on,  the whole or any
part  of,  the  Vessels or  any  rights  assigned  by  this Indenture  or  the
Mortgages.

      (f)   Notices  of Defaults. Upon the occurrence of any Event of Default,
the  Borrower and the Subsidiary Guarantors shall promptly notify the Trustee,
the Agent and the Banks by telecopy, confirmed by letter, unless such Event of
Default shall have been cured.


Section 2.02.  The Trustee represents and warrants that:

      (a)   Organization Existence.  The Trustee was duly organized and is now
validly existing as a banking corporation under laws of the State of Delaware.

      (b)   Power  and Authority.   The  Trustee had  and has legal  power and
authority to enter into and carry out the terms of this Indenture.

      (c)   Due Authorization,  Execution and Enforceability.   This Indenture
has been duly authorized by all necessary corporate action on  the part of the
Trustee,  has been  duly executed and  delivered by the  Trustee and, assuming
this  Indenture constitutes  the legal,  valid and  binding obligation  of the
other  parties hereto, enforceable against such parties in accordance with its
terms, constitutes, in accordance with its terms, the legal, valid and binding
agreement of the Trustee enforceable against the Trustee, except to the extent
limited by  applicable bankruptcy,  reorganization, insolvency,  moratorium or
other laws of  general application relating to or affecting the enforcement of
creditors'  rights as  from  time  to time  in  effect  and general  equitable
principles.

      (d)   No Violations.  The  consummation of the transactions contemplated
by, and compliance  by the Trustee with  all of the  terms and provisions  of,
this Indenture do not and will not  violate any provisions of the Articles  of
Incorporation or By-Laws of the Trustee and will not result in a breach of the
terms and  provisions  of, or  constitute a  default under,  any agreement  or
undertaking of the Trustee  or by which it or any of its property is bound, or
any order of any court or administrative agency entered in  any proceedings to
which the Trustee is or  has been a party  or violate any applicable  statute,
rule or regulation.


                                   ARTICLE 3
                       REMEDIES UPON AN EVENT OF DEFAULT

Section 3.01.     Remedies.

      If  an  Event of  Default  shall have  occurred  and be  continuing, the
Trustee shall be entitled  to, and shall upon receipt  of written Instructions
of the  Agent, without further notice  or demand, enforce and  exercise all or
any of its rights  and powers as a mortgagee under the respective Mortgages at
law, in equity or in admiralty.

Section 3.02.     Suits for Enforcement by Trustee.

      Subject to the provisions of Section 3.08, if an Event  of Default shall
occur  and be  continuing and  the Trustee has  Actual Knowledge  thereof, the
Trustee may in its discretion proceed to protect its rights  and the rights of
the Banks by  such appropriate judicial proceedings as the  Trustee shall deem
most effectual  to protect  any such  rights, or to  protect any  other proper
right, power  or remedy then  available to  the Trustee  under the  Mortgages,
provided  that the Trustee shall  immediately thereafter notify  the Agent and
the Banks by telecopier of any action taken or  proposed to be taken hereunder
and  shall thereafter act only in accordance  with the written Instructions of
the Agent or the Required Banks or either thereof.

Section 3.03.     Enforcement of Claims by Trustee. 

      All rights of action and claims  under this Indenture may be  prosecuted
and enforced by the Trustee in a proceeding brought in its own name as trustee
of  an express trust, and any recovery  of judgment shall, after provision for
the  payment  of  the  reasonable compensation,  expenses,  disbursements  and
advances of  the Trustee,  its agents or  counsel, be for  the benefit  of the
Banks.

Section 3.04.     Application of Monies Collected After Default.

      Any monies  collected by the Trustee pursuant  to any enforcement of any
of  its rights hereunder or under any other  Credit Document on account of the
occurrence of an Event of Default shall be applied as follows:

      (i)   to  the payment  or  reimbursement of  all  amounts owing  to  the
            Trustee of  the type described  in clauses (ii)  and (iii)  of the
            definition of Obligations;

      (ii)  second, to the extent moneys remain after the application pursuant
            to  the preceding clause (i),  an amount equal  to the outstanding
            Obligations shall be  paid to  the Agent for  distribution to  the
            Secured Creditors, with each  Secured Creditor receiving an amount
            equal to  such Obligations  held by  it  or, if  the proceeds  are
            insufficient to pay  in full  all such Obligations,  its Pro  Rata
            Share  (as  defined   below)  of  the   amount  remaining  to   be
            distributed; and

      (iii) third, to the  extent moneys remain after the application pursuant
            to  the  preceding  clauses  (i)   and  (ii),  and  following  the
            termination of this Indenture pursuant  to Article 5, any  surplus
            then remaining  shall be  paid to  the Borrower  or either  of the
            Subsidiary  Guarantors, subject,  however,  to the  rights of  the
            holder of  any then existing lien of  which the Trustee has actual
            notice (without investigation).

      For  purposes  of  this Indenture  "Pro  Rata  Share"  shall mean,  when
calculating  a  Secured Creditors  portion of  any  distribution or  amount in
respect of any Obligations, the amount  (expressed as a percentage) equal to a
fraction the  numerator of which is the then unpaid amount of such Obligations
owning to or held by such Secured Creditor and the denominator of which is the
then outstanding amount of  all such Obligations.  For purposes of determining
the amount  payable to each Secured Creditor, the Trustee shall be entitled to
request each Secured Creditor to furnish it with written notice  of the amount
of Obligations then owed to it and shall be entitled to reply upon the amounts
stated therein in making such distribution.

Section 3.05.     Rights and Remedies Cumulative.

      No right or remedy herein conferred upon or reserved to the Trustee, the
Agent or any of  the Banks is intended to  be exclusive of any other  right or
remedy,  and every right and remedy shall, to  the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder, or
under the other  Security Documents or  now or hereafter  existing at law,  in
equity,  in admiralty, by statute or otherwise. The assertion or employment of
any right or remedy hereunder or otherwise shall not prevent the concurrent or
subsequent assertion or  employment of  another right or  remedy hereunder  or
otherwise.



Section 3.06.     Delay or Omission Not Waiver.

      No delay or omission of the Trustee, the Agent or of any of the Banks to
exercise any right or remedy accruing upon any Event of Default nor any course
of dealings among the Trustee, the Agent, the Banks and the Borrower or either
of Subsidiary Guarantors shall impair any such right or remedy or constitute a
waiver of any Event of Default or an acquiescence therein nor shall any single
exercise or  partial exercise of any  such right or remedy  preclude any other
exercise thereof  or any exercise of any other or further right or remedy; nor
shall  the acceptance by  the Trustee, the  Agent or any  of the Banks  of any
security or  any payment of any part of the  Facility maturing after any Event
of Default or of any payment on account of any past default be construed to be
a waiver of any right to take advantage  of any future Event of Default or  of
any  past  Event of  Default  not completely  cured  thereby.   To  the extent
permitted by law, every  right or remedy given by this  Indenture or any other
Security Document or by  law to the Trustee, the Agent or any of the Banks may
be exercised from  time to  time, and as  often and  in such order  as may  be
deemed expedient, by the Trustee, the Agent or the Banks, as the case may be.

Section 3.07.     Discontinuance of Enforcement Proceedings.

      In case  the Trustee shall have proceeded to enforce any right, power or
remedy under this Indenture  or under any Mortgage  and such proceeding  shall
have  been  discontinued or  abandoned  for  any  reason  or shall  have  been
adversely determined  to  the Trustee,  then,  and  in every  such  case,  the
Borrower, the Subsidiary Guarantors and the Trustee shall be restored to their
former  positions and rights hereunder with respect to the property subject or
intended to be subject  to this Indenture or either Mortgage,  as the case may
be, and all rights, remedies and powers of the Trustee shall continue as if no
such proceedings had been taken.

Section 3.08.     Control by the Required Banks.

      Subject to (i) the  provisions of Section 3.09 and (ii) the requirements
of Sections 9 and 37  of the Shipping Act, 1916, as amended, the  Agent or the
Required Banks shall have the right by written Instructions to the Trustee, to
direct the  time, method and place of conducting any proceeding for any remedy
available  to the Trustee under  this Indenture or  any Mortgage or exercising
any  trust or  power conferred  on  the Trustee  herein or  therein, and  upon
receipt of such written  Instructions, the Trustee, subject to  the provisions
of Article 4, shall  take the actions specified in such  written Instructions,
provided that such written instructions shall not be in conflict with any rule
of law or with this or expose the Indenture Trustee to personal liability.

Section 3.09.     Undertaking for Costs.

      The parties  to  this Indenture  agree,  and  the Banks  by  making  the
Facility available shall be deemed  to have agreed, that any court may  in its
discretion  require, in any  suit for the  enforcement of any  right or remedy
under this Indenture, or in any suit against the Trustee for any  action taken
or omitted by it as Trustee, the filing by any party litigant in such  suit of
an undertaking to pay the costs of such  suit, and that such court may in  its
discretion  assess  reasonable  costs, including  reasonable  attorneys' fees,
against any party litigant  in such suit, having due regard  to the merits and
good  faith of  the claims or  defenses made  by such party  litigant; but the
provisions  of this  Section shall  not apply  to any  suit instituted  by the
Trustee, or to any suit instituted by the Banks, unless  otherwise required by
law.


Section 3.10.     Waiver of Demand, etc.

      The Borrower  and each  of  the Subsidiary  Guarantors hereby  expressly
waives demand  and presentment  for payment,  notice  of nonpayment,  protest,
notice of  protest, notice  of dishonor,  bringing of  suit, and diligence  in
taking any  action to  collect amounts  called for  under this  Indenture, the
other Security Documents, the Subsidiary Guaranties or the Credit Agreement at
any time in connection herewith and therewith.

                                   ARTICLE 4
                                  THE TRUSTEE

Section 4.01.     Certain Duties and Liabilities.

      (a)   The Trustee undertakes to perform such duties and only such duties
as are specifically  set forth in this Indenture, and  no implied covenants or
obligations shall be read into this Indenture against the Trustee.

      (b)   Without limiting the  provisions of paragraph (a)  of this Section
4.01 or  the provisions of Section 3.08,  in any case where  the terms of this
Indenture  or any  Mortgage vest in  the Trustee  non-mandatory, discretionary
authority to take any action or give any  consent or approval upon the request
of the Borrower, either of the Subsidiary Guarantors, the Agent or any of  the
Banks or otherwise,  the Trustee shall  be required, first  to give notice  of
such proposed  action, approval or consent  to the Agent, and  upon receipt of
written Instructions  of the Agent, the Trustee shall act with respect to such
action, approval or consent only in accordance with such written Instructions.

      (c)   In case an Event of Default shall have occurred and be continuing,
the Trustee shall (except as otherwise provided in Section 3.08) exercise such
of the  rights and powers  vested in it  by this Indenture,  and use  the same
degree of care and skill in their exercise, as a prudent man would exercise or
use under the circumstances in the conduct of his own affairs.

      (d)   No provision of this  Indenture shall be construed to  relieve the
Trustee  from  liability  for its  own  gross negligence  or  its  own willful
misconduct or that of its employees, agents, officers and attorneys.

      (e)   Save for the provisions of paragraph (d) hereof, the Trustee shall
not be liable with respect to any action taken or omitted to be taken by it in
accordance with Instructions  of the Agent  or the Required Banks  relating to
the  exercise of any trust, right, remedy  or power conferred upon the Trustee
under  this Indenture  or any  Mortgage,  or exercisable  by  it hereunder  or
thereunder.

      (f)   None of the provisions of this Indenture shall require the Trustee
to  expend  or risk  its  own  funds  or otherwise  incur  personal  financial
liability in the performance of any of its duties or in the exercise of any of
its rights  or powers, if  there is reasonable  ground for believing  that the
repayment of such funds or liability is not reasonably assured to it under the
terms of this Indenture or by special  agreement of the Agent or the  Required
Banks.

      (g)   Whether or not  herein expressly so  provided, every provision  of
this  Indenture relating  to  the conduct  or affecting  the  liability of  or
affording protection to the Trustee shall be subject to the provisions of this
Section.

      (h)   The  Trustee  shall  not  be deemed  to  have  knowledge  ("Actual
Knowledge")  of the existence of an Event  of Default unless the Trustee shall
have received telecopied or other written notice of such Event of Default from
the Agent or  Required Banks, or a Responsible Officer  in the Corporate Trust
Office of the Trustee shall have actual knowledge of such Event of Default.

      (i)   The Trustee shall promptly, upon  receiving Actual Knowledge of an
Event of Default, inform the Agent and the Banks  by telex or telecopy of such
Event of Default.

      (j)   None of the provisions of this Indenture shall require the Trustee
to review or  hold policies of  insurance or to  make any  claims or take  any
other  action with respect to such insurance unless specifically instructed to
do so by the Agent.

      (k)   The Trustee agrees  that it will in its individual capacity and at
its own cost and expense promptly take such action as may be necessary duly to
discharge and satisfy in full all liens on the Mortgages  and other collateral
security held by the Trustee attributable to it in its individual capacity.

Section 4.02.     Certain Rights of Trustee.

      Except as otherwise provided in Section 4.01:

      (a)   The  Trustee  may  rely  and  shall  be  protected  in  acting  or
refraining  from  acting  upon  any  written  statement,  instrument,  notice,
request, instruction, direction or other paper  or document believed by it  to
be  genuine  and to  have been  signed  or presented  by  the proper  party or
parties;

      (b)   The Trustee may  consult with  counsel and the  written advice  of
such  counsel shall  be  full and  complete  authorization and  protection  in
respect  of any action taken, suffered or  omitted by it hereunder in reliance
thereon and in compliance  therewith, absent bad faith, negligence  or willful
misconduct on the part of the Trustee;

      (c)   The  Trustee shall be under  no obligation to  exercise any of the
rights or powers vested in it by this Indenture at the request or direction of
the  Agent or the Required Banks pursuant  to this Indenture, unless the Agent
or the Required Banks shall have offered to the Trustee reasonable security or
indemnity against  the costs and  expenses which  might be incurred  by it  in
compliance with such request or direction; 

      (d)   The Trustee shall not  be bound to make any investigation into the
facts  or  matters  stated  in  any  statement,  instrument,  notice, request,
direction or  other paper  or document  referred to in  paragraph (a)  of this
Section;

      (e)   The Trustee may execute any of  the trusts or powers hereunder  or
perform  any duties  hereunder  either directly  or by  or  through agents  or
attorneys  and the Trustee shall not be  responsible for the negligence of any
attorney or agent appointed by the Indenture Trustee with due care; and

      (f)   Should the Trustee receive written Instructions from the Agent  or
the Required  Banks which  the Trustee,  in its sole  opinion, believes  to be
conflicting Instructions, the  Trustee shall have no duty to  act thereon, but
if indemnified to its satisfaction  for any costs, expenses or liabilities  it
may incur,  it shall seek  instructions concerning its  responsibilities under
this Indenture with respect to such conflicting Instructions from any court of
competent jurisdiction.

Section 4.03.     Not Responsible for Recitals.

      The recitals contained  herein shall be taken as  the statements of each
of the  Borrower and  the Subsidiary  Guarantors, and the  Trustee assumes  no
responsibility for their correctness. The Trustee  makes no representations as
to the validity or sufficiency of this Indenture or any Mortgage.

Section 4.04.     Money Held in Trust.

      Any money  held by the Trustee in trust hereunder need not be segregated
from other funds  except to the extent required by law.   The Trustee shall be
under no liability  for interest on any money received  by it hereunder except
as otherwise  agreed with  the Borrower  and the  Subsidiary Guarantors.   Any
payments  made by  the Trustee under  this Indenture  shall be  made only from
monies held by it in trust hereunder.

Section 4.05.     Compensation, Reimbursement and Indemnification.

      The Borrower and the Subsidiary Guarantors jointly  and severally agree,
subject to the provisions of Article 5:

      (a)   To  pay to the Trustee  from time to  time reasonable compensation
for  all services  rendered by it  hereunder (which compensation  shall not be
limited to any provision of law in regard to  the compensation of a trustee of
an express trust);

      (b)   To  reimburse the  Trustee  upon its  request  for all  reasonable
expenses,  disbursements and  advances  incurred or  made  by the  Trustee  in
accordance  with   any  provision   of  this  Indenture   (including,  without
limitation,  reasonable compensation  and  expenses and  disbursements of  its
agents and counsel and  expenses incurred in enforcing its rights  or remedies
under any Security Document), except any such expense, disbursement or advance
as may be attributable to its gross negligence or willful misconduct; 

      (c)   To indemnify  the Trustee, its directors,  officers, employees and
agents for,  and to  hold it and  them harmless  against, any and  all claims,
losses,  liabilities  or  expenses  of any  kind  (including  attorneys' fees)
incurred without  gross negligence or willful misconduct  on its or their part
and arising out  of or in connection with the  acceptance or administration of
this trust, including the costs and expenses of defending itself or themselves
against any claim of liability in the premises; and 

      (d)   That  to secure the obligations of the Borrower and the Subsidiary
Guarantors under this Section 4.05, the Trustee shall have a lien prior to the
rights of the Banks on all money or property  held or collected by the Trustee
pursuant to this Indenture.

Section 4.06.     Corporate Trustee Required; Eligibility.

      There shall at all times be a Trustee hereunder which shall be a bank or
trust company which  (i) is organized as a corporation or banking association,
and is  doing  business under  the laws  of  the United  States or  any  State
thereof,  (ii) is  authorized  under such  laws  to exercise  corporate  trust
powers, (iii) is a citizen of the United States within the  meaning of Section
2  of the Shipping Act,  1916, as amended,  (iv) is subject  to supervision or
examination by  federal or  state authority,  (v) has a  combined capital  and
surplus (as set forth in its most recent published report of condition) of  at
least  $50,000,000  and  (vi)  is  a trustee  approved  by  the  Secretary  of
Transportation  pursuant to Section  9 and, if  applicable, Section  37 of the
Shipping Act,  1916, as amended,  and Chapter  313 of Title  46 of  the United
States Code.  The Trustee  hereby represents  and  warrants that  on the  date
hereof it complies with the requirements of the foregoing sentence.  If at any
time the Trustee shall cease to  be eligible in accordance with the provisions
of this Section, it shall resign immediately in the manner and with the effect
hereinafter specified in this Article.

Section 4.07.     Disqualification,  Removal  or Resignation  of  the Trustee;
Successor Trustees.

      (a)   If  the Trustee  ceases at any  time to  be a  Trustee approved by
MARAD, it promptly will so notify the Agent and resign hereunder and cooperate
in all reasonable respects in the appointment of its successor, but shall have
no other  liability hereunder for loss  of its status as  an approved trustee.
The Agent shall  immediately appoint  a qualified successor  trustee or  shall
take the actions provided for below in the event a qualified successor trustee
cannot be  found by it.  In  addition, the Agent may  in its discretion remove
the Trustee  at any time, without cause,  by causing a written  notice of such
removal  to  be  delivered  to  the  Trustee,  the  Borrower,  the  Subsidiary
Guarantors  and the Banks which notice shall  state the effective date and the
name  of the  qualified successor  trustee selected  by the Agent.  No removal
shall  be  effective unless  a qualified  successor  trustee is  available and
willing to act for  the Banks or unless the actions provided  for below in the
event a  qualified successor trustee is  not available to the  Agent have been
initiated. In the event of discharge or removal, the Trustee shall execute all
documents  and take such other actions as  necessary or desirable to the Agent
or the  Required Banks to  transfer the Trustee's  function of trustee  to the
successor  trustee. The  compensation of  the Trustee  shall cease  as of  the
effective date of discharge or removal, except those rights of indemnification
which shall survive its removal. Upon discharge or removal, the Trustee shall,
within  thirty days, furnish the  Agent, the Banks,  the successor trustee and
the Borrower and  the Subsidiary Guarantors a complete accounting of the trust
estate, its  compensation, costs and expenses  as of the date  of discharge or
removal. Such amount shall be promptly paid by the Borrower and the Subsidiary
Guarantors. 

      (b)   (i)   The  Trustee or any successor thereto may resign at any time
without  cause by  giving at  least ninety  days prior  written notice  to the
Agent,  the Banks  and to  the Borrower  and the  Subsidiary Guarantors,  such
resignation to  be effective on the  date specified in such  notice. The Agent
shall, prior to the date specified in such notice, appoint a successor trustee
meeting  the  requirements  of Section  4.06.  If  the  Agent shall  not  have
appointed  such a  qualified successor  trustee within  sixty days  after such
notice,  the Trustee  may  apply to  any court  of  competent jurisdiction  to
appoint  a qualified successor trustee  to act until  such time, if  any, as a
successor  shall have  been  appointed by  the Agent  as herein  provided. Any
qualified successor trustee so  appointed by such court shall  immediately and
without further act be superseded by any qualified successor trustee appointed
by the Agent. Any  banking institution or trust  company becoming a  successor
trustee hereunder  shall be deemed  the Trustee  for all purposes  hereof, and
each reference herein to the Trustee shall thereafter be deemed a reference to
such banking institution or trust company.

            (ii)  Any successor  trustee, whether appointed  by a court  or by
the Agent  as provided in subparagraph  (b) (i), shall execute  and deliver to
the  predecessor  trustee  an   instrument  accepting  such  appointment,  and
thereupon such  successor trustee,  without further  act, shall  become vested
with  all the estates,  properties, rights, powers,  duties and trusts  of the
predecessor trustee in the trust  hereunder with like effect as  if originally
named as the Trustee  herein; and such predecessor  trustee shall execute  and
deliver  an instrument transferring to such successor trustee, upon the trusts
herein  expressed,  all the  estates, properties,  rights, powers,  duties and
trusts  of such predecessor trustee,  and such predecessor  trustee shall duly
assign,  transfer, deliver and pay over to such successor trustee any property
or monies or other things of value then held by such predecessor  trustee upon
the trusts herein expressed.

            (iii) Any successor trustee, however appointed, shall be a trustee
approved by MARAD in accordance with the provisions of Chapter 313 of Title 46
of the United States Code.

            (iv)  Any bank into which  the Trustee may be merged  or converted
or with  which it may be consolidated, or  any bank resulting from any merger,
conversion on consolidation to which the Trustee shall be a party, or any bank
to  which substantially  all  the business  of the  Indenture  Trustee may  be
transferred,  shall,  subject to  the terms  of this  Section 4.07(b),  be the
Trustee under this Indenture  without any further act, provided  the successor
bank remains qualified.

            (v)   Within sixty days of the  effective date of its resignation,
the Trustee  shall provide the Agent  a statement and accounting  as though it
had been removed in accordance with Section 4.07(a) hereof.

      (c)   A successor trustee shall be appointed by an instrument in writing
which shall  state the  effective date on  which said successor  trustee shall
become the Trustee hereunder and  the holder of this instrument and  the trust
estate,  which   document  shall  contain  the   executed  acknowledgement  of
acceptance by  the successor trustee  of the trust,  the trust estate  and the
duties of the Trustee as herein provided.

      The  Trustee or  any  predecessor trustee  shall duly  assign, transfer,
deliver  and pay  over to  any successor  trustee any  property and  monies or
things of value  subject to the trust hereunder and held by the Trustee or any
predecessor trustee, as the case may  be. Should any act or further instrument
from  the Trustee, any  predecessor trustee, or  the Banks be  required by any
successor trustee for  more fully and certainly  vesting in and  confirming to
such successor  trustee such estates, properties, rights, remedies and trusts,
then  on  request by  such  successor  trustee  any  and  all  such  acts  and
instruments shall be done,  made, executed, acknowledged and delivered  by the
Indenture Trustee, any predecessor trustee, or the Banks, as the case may be.

      (d)   Should for any reason  the Agent be unable  to locate a  qualified
successor  trustee, then  prior  to  ceasing to  act  as  trustee or  becoming
disqualified to do so the Trustee shall cooperate with the Agent and the Banks
in the following:

            (i)   First,   petition  MARAD   for   approval  of   a  presently
unqualified bank  or trust company satisfactory  to the Agent or  the Required
Banks and willing to act as trustee;

            (ii)  If  MARAD approval  cannot  be obtained  for such  available
unqualified trustee then the Agent or the Required Banks and the Trustee shall
petition the United  States District  Court for the  Southern District of  New
York for instructions to  the Trustee in  order that the  trust estate may  be
preserved and to prevent  the Agent, the Banks or the  Trustee from falling in
violation of law.  To the extent that such  may be required or  necessary, the
parties  hereto agree  that  said Court  has  jurisdiction for  this  purpose;
however, if, in the interest of justice, the said Court determines to transfer
the matter to any  other United States court, the parties hereby  agree to the
jurisdiction of such transferee court. Any such  petition shall be served upon
the parties hereto and MARAD, with a copy mailed to the chief counsel of MARAD
and the Borrower and the Subsidiary Guarantors. The Trustee and any  successor
trustee hereby  agree to abide by  the instructions of the  court issuing same
and to all acts, execute such documents and instructions as may be required in
connection  therewith and  all other  instruments and  documents necessary  to
preserve  the trust estate  for the  benefit of  the Banks,  as beneficiaries,
under the  terms hereof as well as  preserving the adequacy and enforceability
of any interest held in the trust estate.

Section 4.08.     Co-trustees and Separate Trustees.

      At any time or times, for the purpose of meeting  the legal requirements
of any  jurisdiction in  which any security  may at the  time be  located, the
Borrower,  the Subsidiary  Guarantors  and the  Trustee  shall have  power  to
appoint, and upon  the written request  of the  Trustee, the Agent  or of  the
Required  Banks, the  Borrower and  the Subsidiary  Guarantors shall  for such
purpose  join with the Trustee  in execution, delivery  and performance of all
instruments and agreements necessary or proper to appoint, one or more persons
approved by the Trustee either to act as co-trustee, jointly with the Trustee,
and,  if  deemed necessary  by  the appointing  party, as  secured  party with
respect to all or any part of the security, or to act as separate trustee and,
if deemed  necessary as aforesaid, as  secured party with respect  to any such
property, in either case with such powers as may be provided in the instrument
of  appointment,  and to  vest  in  such person  or  persons  in the  capacity
aforesaid,  any property, title, right or power deemed necessary or desirable,
subject  to the  other provisions  of this  Section. If  the Borrower  and the
Subsidiary  Guarantors do  not join  in such  appointment within  fifteen days
after the receipt  by them  of a  request so to  do, or  in case  an Event  of
Default has occurred  and is continuing, the  Trustee acting alone  shall have
power to make such appointment.

      Any person appointed as  co-trustee or separate trustee hereunder  shall
satisfy the qualifications prescribed in clauses (i), (iii), (iv) and (vi)  of
Section 4.06.

      Should any  written  instrument from  the  Borrower and  the  Subsidiary
Guarantors be required by any co-trustee or separate  trustee so appointed for
more  fully confirming to such  co-trustee or separate  trustee such property,
title, right  or power, any  and all  such instruments shall,  on request,  be
executed,  acknowledged and  delivered  by  the  Borrower and  the  Subsidiary
Guarantors.

      Every co-trustee or separate  trustee shall, to the extent  permitted by
law, but  to such extent  only, be appointed  subject to the  following terms,
namely:

      (a)   All rights, powers, duties and obligations hereunder in respect of
the custody  of the Security Documents held by the Trustee hereunder, shall be
exercised solely by the Trustee.

      (b)   The  rights, powers,  duties and  obligations hereby  conferred or
imposed  upon  the  Trustee  in  respect  of  any  property  covered  by  such
appointment shall be conferred  or imposed upon and exercised or  performed by
the Trustee or by the Trustee and such co-trustee or separate trustee jointly,
as shall be provided in the instrument appointing such co-trustee or  separate
Trustee, except to the extent  that under any law or any jurisdiction in which
any  particular act is  to be performed,  the Trustee shall  be incompetent or
unqualified to  perform such act, in  which event such rights,  powers, duties
and  obligations  shall  be exercised  and  performed  by  such co-trustee  or
separate trustee.

      (c)   The Trustee at any time, by  an instrument in writing executed  by
it,  with  the  concurrence of  the  Borrower  and  the Subsidiary  Guarantors
evidenced by separate  resolutions of the  board of directors  of each of  the
Borrower  and  the Subsidiary  Guarantors, may  accept  the resignation  of or
remove any co-trustee or  separate trustee appointed under this  Section, and,
in case an Event of Default shall have occurred and be continuing, the Trustee
may act alone in  the execution, delivery and  performance of all  instruments
and  agreements necessary or proper to effectuate such resignation or removal.
A  successor to any co-trustee or separate  trustee so resigned or removed may
be appointed in the manner provided in this Section.

      (d)   No co-trustee  or separate  trustee hereunder shall  be personally
liable  by reason  of any act  or omission  of the  Trustee or any  other such
trustee hereunder.

      (e)   Any notice of instruction delivered to the Trustee by the Agent or
the Required  Banks  shall be  deemed  to have  been  delivered to  each  such
co-trustee and separate trustee.

                                  ARTICLE 5
                          SATISFACTION AND DISCHARGE

Section 5.01.     General.

      If the Borrower and the  Subsidiary Guarantors shall pay or cause  to be
paid all of  the Obligations, then  this Indenture and  the liens, estate  and
rights  and interest  hereby and  thereby created  shall cease,  determine and
become null  and void, and the  Trustee, upon written request  of the Borrower
and the Subsidiary Guarantors, accompanied by an opinion of counsel acceptable
to the Trustee, and at the cost and expense of the Borrower and the Subsidiary
Guarantors, shall forthwith cause satisfaction and discharge of this Indenture
and  shall execute and deliver  to the Borrower  and the Subsidiary Guarantors
such  instruments as may be necessary, duly acknowledging the satisfaction and
discharge  of  this  Indenture and  forthwith  the  estate,  right, title  and
interest of the Trustee in and to any property held by it under this Indenture
or under  any Mortgage shall  thereupon cease, determine  and become  null and
void,  and  the Trustee  shall  transfer  the same  to  the  Borrower and  the
Subsidiary Guarantors.


Section 5.02.     Survival of Certain Obligations.

      Notwithstanding the  satisfaction and  discharge of this  Indenture, (a)
the  liabilities and obligations of the Borrower and the Subsidiary Guarantors
to the Trustee under Section 4.05 shall survive,  and (b) if the Borrower's or
either of the Subsidiary Guarantor's trustee in bankruptcy or any Person under
any applicable  bankruptcy law shall  recover all or  part of  the Obligations
payable hereunder  from the Trustee or  from any of the  Banks, this Indenture
and all  other Security Documents shall  be deemed not to  have been satisfied
and discharged but shall continue to be in full force and effect to the extent
of the amount so recovered.

                                   ARTICLE 6
                            SUPPLEMENTAL INDENTURES

Section 6.01.     Waivers and Supplemental Indentures with Consent of Banks.

      This  Indenture may  not be  waived,  modified, amended  or supplemented
without the prior written consent of the Agent or the Required Banks.

Section 6.02.     Execution of Supplemental Indentures.

      In  executing,  or  accepting  the  additional  trusts  created  by  any
indenture  supplemental hereto  or  the modifications  thereby  of the  trusts
created by  this Indenture,  the Trustee  shall  be entitled  to receive,  and
(subject to Sections 4.01 and 6.01)  shall be fully protected in relying upon,
an opinion  of counsel of the  Borrower and the Subsidiary  Guarantors stating
that the execution of  such Supplemental Indenture is authorized  or permitted
by this Indenture.  The Trustee may, but shall not be obligated to, enter into
any such Supplemental Indenture which affects the Trustee's own rights, duties
or immunities under this Indenture or otherwise.

Section 6.03.     Effect of Supplemental Indentures.

      Upon the execution of any indenture supplemental hereto,  this Indenture
shall be  modified in  accordance therewith, and  such Supplemental  Indenture
shall form a part of this Indenture for all purposes.

                                  ARTICLE 7
                  INSTRUCTIONS OF THE AGENT OR REQUIRED BANKS

Section 7.01.     Instructions of the Agent or Required Banks.

      (a)   Any  request, demand,  authorization, direction,  notice, consent,
waiver of or other  action required or permitted by this Indenture to be given
by  the  Agent  or  the  Required  Banks  (sometimes  referred  to  herein  as
"Instructions") shall be given  in accordance with Section 1.02.  The Trustee,
the Borrower  and the Subsidiary Guarantors  shall be entitled to  assume that
any Instructions so given have been duly authorized.  No instructions shall be
given which are in violation  of this Indenture (or the Credit  Agreement, the
Subsidiary  Guaranties or  any of  the Security Documents,  as defined  in the
Credit Agreement) or in violation of any applicable laws. 

      (b)   Unless  and  until the  Trustee  shall  have received  conflicting
Instructions  from the  Agent  or the  Required  Banks, any  request,  demand,
authorization, direction, notice, consent, waiver or other action by the Agent
or the  Required Banks shall bind the other Banks  in respect of anything done
or  suffered  to  be done  by  the  Indenture  Trustee,  the Borrower  or  the
Subsidiary Guarantors in reliance thereon.

                                   ARTICLE 8
                            LIMITATION OF LIABILITY

Section 8.01.     Limitation of Liability of Wilmington Trust Company.

      It is  expressly understood and  agreed by the parties  hereto that this
Indenture   is  executed  and  delivered  by   Wilmington  Trust  Company  not
individually  but solely  as  Indenture Trustee  and,  except as  provided  in
Section  4.01, nothing  contained herein  shall be  construed as  creating any
liability  on Wilmington  Trust Company  individually, including  any covenant
either express or implied herein, all such liability,  if any, being expressly
waived by all parties hereto.   


      IN WITNESS WHEREOF, the parties hereto  have caused this Indenture to be
duly executed on the day and year first above written.


                              READING & BATES DRILLING CO.


                              By:  ______________________________
                                    Title:

                              READING & BATES EXPLORATION CO.


                              By:  ________________________________
                                    Title:


                              HRB RIG CORPORATION


                              By:  _________________________________
                                    Title:


                              WILMINGTON  TRUST COMPANY, not in its individual
                              capacity but solely as Trustee  


                               By:  ______________________________
                                    Title:




                                ACKNOWLEDGEMENT



STATE OF NEW YORK       )
                        ) S.S.
COUNTY OF NEW YORK      )



On this 9th day of July, 1996 before me  personally appeared _________________
to me known who  being by me duly sworn did depose and  say that he resides at
___________________________, that he is __________________ for READING & BATES
DRILLING  CO., the corporation described  in and which  executed the foregoing
instrument;  and that he  signed his  name thereto  by order  of the  Board of
Directors of READING & BATES DRILLING CO.


                          __________________________
                                 Notary Public




                                ACKNOWLEDGEMENT



STATE OF NEW YORK       )
                        ) S.S.
COUNTY OF NEW YORK      )



On this  9th day of July, 1996 before me personally appeared _________________
to me known who  being by me duly sworn did depose and  say that he resides at
___________________________, that he is __________________ for READING & BATES
EXPLORATION CO., the corporation described in and which executed the foregoing
instrument; and  that he  signed his name  thereto by  order of  the Board  of
Directors of READING & BATES EXPLORATION CO.


                          __________________________
                                 Notary Public


                                ACKNOWLEDGEMENT



STATE OF NEW YORK       )
                        ) S.S.
COUNTY OF NEW YORK      )



On this  9th day of July, 1996 before me personally appeared _________________
to me known who  being by me duly sworn did depose and  say that he resides at
___________________________,  that  he  is  __________________  for  HRB   RIG
CORPORATION, the  corporation described in  and which  executed the  foregoing
instrument; and  that he signed  his name  thereto by  order of  the Board  of
Directors of HRB RIG CORPORATION.


                          __________________________
                                 Notary Public


                                ACKNOWLEDGEMENT



STATE OF DELAWARE       )
                        ) S.S.
COUNTY OF NEW CASTLE    )



On this 9th day of July,  1996 before me personally appeared _________________
to me known who  being by me duly sworn did depose and  say that he resides at
___________________________,  that  he  is __________________  for  WILMINGTON
TRUST COMPANY, the corporation  described in and which executed  the foregoing
instrument; and  that he  signed his  name thereto  by order of  the Board  of
Directors of WILMINGTON TRUST COMPANY.


                          __________________________
                                 Notary Public



                                                               Exhibit 10.112 

                     SECOND AMENDMENT TO CREDIT AGREEMENT



            SECOND AMENDMENT (the  "Amendment"), dated as of  August 30, 1996,
among READING & BATES  CORPORATION ("Holdings"), READING & BATES  DRILLING CO.
(the  "Borrower"), the  financial institutions party  to the  Credit Agreement
referred to below (the "Banks"), Credit Lyonnais New York  Branch, as Co-Agent
(the  "Co-Agent") and  Christiania Bank  og Kreditkasse,  New York  Branch, as
Agent (the  "Agent").   All capitalized  terms used herein  and not  otherwise
defined  shall have the respective meanings provided  such terms in the Credit
Agreement.


                             W I T N E S S E T H :


            WHEREAS, Holdings, the  Borrower, the Banks, the  Co-Agent and the
Agent  are parties  to a  Credit Agreement,  dated as  of April  30,  1996 (as
amended, modified or supplemented, the "Credit Agreement"); and

            WHEREAS, the parties  hereto wish to  amend certain provisions  of
the Credit Agreement as herein provided;

            NOW, THEREFORE, it is agreed:

      1.    Section 7.13 of the Credit Agreement is hereby amended by deleting
all references  to "RB Drilling Co."  contained therein and inserting  in lieu
thereof references to "Reading & Bates Development Co.".


      2.    Section  7.13 of the Credit Agreement is hereby further amended by
inserting at the end thereof the following sub-sections:

                  (h)   Opinions of  Counsel.   The Agent shall  have received
            opinions, addressed  to the Agent and each  of the Banks and dated
            the Second Amendment Effective Date, from  (i) Wayne Hillin, Esq.,
            General  Counsel to the Credit Parties,  which opinion shall cover
            matters, and shall be  in form and substance, satisfactory  to the
            Agent and (ii) from local counsel satisfactory to the Agent as the
            Agent may  request, which opinions  shall cover the  perfection of
            the security interests (including, without limitation, opinions as
            to the enforceability and effect of the Seillean Mortgage) granted
            pursuant  to this Amendment and such other matters incident to the
            transactions  contemplated herein  as  the  Agent  may  reasonably
            request and shall  be in  form and substance  satisfactory to  the
            Agent.

                  (j)   Corporate  Proceedings.  (1)   The  Agent  shall  have
            received from Reading & Bates Development Co. a certificate, dated
            the  Second Amendment Effective  Date, signed by  the President or
            any Vice-President  or other appropriate representative of Reading
            &  Bates Development Co. in the form of Exhibit F with appropriate
            insertions and deletions, together  with copies of the certificate
            of formation,  the by-laws,  or other organizational  documents of
            Reading & Bates Development Co. and the resolutions, or such other
            administrative  approval,  of  Reading  &  Bates  Development  Co.
            referred   to  in  such  certificate  and  all  of  the  foregoing
            (including each  such  certificate of  formation,  certificate  of
            incorporation and by-laws) shall be reasonably satisfactory to the
            Agent.

                  (2)   All  corporate and  legal proceedings and  all instru-
            ments and  agreements in connection with  the transactions contem-
            plated by this Amendment shall be  reasonably satisfactory in form
            and substance to the  Agent, and the Agent shall have received all
            information and copies of  all certificates, documents and papers,
            including  good standing  certificates  and any  other records  of
            corporate proceedings  and governmental  approvals, if  any, which
            the Agent  may have reasonably requested  in connection therewith,
            such documents  and papers, where appropriate, to  be certified by
            proper corporate or governmental authorities.

                  (k)   Fees.  The Borrower  shall have paid to the  Agent and
      the   Banks all Fees and expenses agreed upon by such parties to be paid
      on    or prior to such date.

                  (l)   Security Agreement.   Reading & Bates Development  Co.
            shall have  duly authorized, executed and  delivered a counterpart
            to the Security Agreement, together with:

                        (1)   executed  copies  of Financing  Statements (Form
                  UCC-1  and/or  UCC-3)  or appropriate  local  equivalent  in
                  appropriate  form for  filing under  the UCC  or appropriate
                  local equivalent of each jurisdiction as may be necessary to
                  perfect the  security interests  purported to be  created by
                  the Security Agreement;

                        (2)   certified  copies of Requests for Information or
                  Copies  (Form  UCC-11), or  equivalent  reports,  each of  a
                  recent  date listing all effective financing statements that
                  name  Reading  & Bates  Development  Co., or  a  division or
                  operating unit of Reading & Bates Development Co., as debtor
                  and that  are  filed in  the  jurisdictions referred  to  in
                  immediately preceding  clause (1),  together with  copies of
                  such  financing statements  (none of  which shall  cover the
                  Collateral except (x) those  with respect to which appropri-
                  ate  termination statements  executed by the  secured lender
                  thereunder have  been delivered to the  Collateral Agent and
                  (y) to the extent evidencing Permitted Liens);

                        (3)   evidence that  all other recordings  and filings
                  of,  or with  respect to,  the  Security Agreement,  and all
                  other actions, as may be necessary or, in the opinion of the
                  Collateral   Agent,  desirable   to  perfect   the  security
                  interests intended  to be created by  the Security Agreement
                  have been completed (it being understood and agreed that UCC
                  financing  statements and  termination  statements shall  be
                  filed in  the appropriate governmental  office within  three
                  Business Days after the Second Amendment Effective Date); 

            and  the Security Agreement and  such other documents  shall be in
            full force and effect.

                  (m)   Subsidiary Guaranty.   Reading & Bates Development Co.
            (a "Subsidiary  Guarantor") shall have  duly authorized,  executed
            and delivered a  counterpart of the  Subsidiary Guaranty, and  the
            Subsidiary Guaranty shall be in full force and effect with respect
            to Reading & Bates Development Co.

      3.    Section  10 of the Credit Agreement is hereby amended by inserting
in appropriate alphabetical order the following new definitions:

            "Second Amendment"  shall mean the  Second Amendment, dated  as of
      August 30, 1996, to this Agreement.

            "Second Amendment Effective Date"  shall mean the Second Amendment
      Effective Date as  defined in the Second  Amendment, dated as of  August
      30, 1996, to this Agreement.

      4.    In order to induce the Banks to enter into this Amendment, each of
Holdings  and the Borrower hereby represents and  warrants that (i) the repre-
sentations, warranties and  agreements contained  in Section 7  of the  Credit
Agreement  are true  and correct  in all  material respects  on and as  of the
Second Amendment Effective  Date (except with  respect to any  representations
and  warranties limited by their terms to a specific date, which shall be true
and correct in all material respects as of such date) and (ii) there exists no
Default or Event of Default on the Second Amendment Effective Date (as defined
herein) in each case both before and after giving effect to this Amendment.

      5.    This  Amendment is limited as specified and shall not constitute a
modification,  acceptance or  waiver  of any  other  provision of  the  Credit
Agreement or any other Credit Document.

      6.    This Amendment may be  executed in any number of  counterparts and
by  the different  parties  hereto on  separate  counterparts, each  of  which
counterparts  when executed  and delivered  shall be an  original, but  all of
which shall together  constitute one and the same instrument.   A complete set
of counterparts  shall be lodged with  each of Holdings, the  Borrower and the
Agent.

      7.    THIS AMENDMENT  AND  THE RIGHTS  AND  OBLIGATIONS OF  THE  PARTIES
HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF THE
STATE OF NEW YORK.

      8.    This Amendment shall  become effective  on the  date (the  "Second
Amendment Effective Date")  when (i) each  of Holdings, the Borrower,  and the
Banks shall have signed a  copy hereof (whether the same or  different copies)
and shall have delivered (including by way of facsimile) the same to the Agent
at the Notice Office and (ii) each of the conditions set  forth in paragraph 4
hereof shall have been satisfied.

      9.     From  and   after  the  Second  Amendment   Effective  Date,  all
references  in the  Credit Agreement  and the  other Credit  Documents  to the
Credit Agreement shall be deemed to be references to such  Credit Agreement as
modified hereby.

            IN WITNESSES WHEREOF,  the parties hereto  have caused their  duly
authorized officers to execute and deliver this Amendment as of the date first
above written.

                              READING & BATES CORPORATION 

                              By:                                             
                                 Title:

                              READING & BATES DRILLING CO.

                              By:                                             
                                 Title:

                              CHRISTIANIA BANK OG
                                KREDITKASSE, NEW YORK BRANCH,
                                Individually, and as Agent

                              By:                                             
                                 Title:

                              By:                                             
                                 Title:

                              CREDIT LYONNAIS NEW YORK
                                BRANCH

                              By:                                             
                                 Title:

                              BANQUE INDOSUEZ

                              By:                                             
                                 Title: 

                              By:                                             
                                 Title: 

                              BANK AUSTRIA AKTIENGESELLSCHAFT

                              By:                                             
                                 Title: 

                              By:                                             
                                 Title: 

                              THE FUJI BANK, LIMITED

                              By:                                             
                                 Title:


                                                                Exhibit 10.113

                        SUBSIDIARY ASSUMPTION AGREEMENT


            SUBSIDIARY ASSUMPTION  AGREEMENT (this  "Agreement"), dated as  of
August 30,  1996,  made  by  READING  &  BATES  DEVELOPMENT  CO.,  a  Delaware
corporation  (the  "New  Subsidiary").     Unless  otherwise  defined  herein,
capitalized terms used herein and defined  in the Credit Agreement referred to
below are used herein as so defined.


                             W I T N E S S E T H :


            WHEREAS,  READING  &  BATES  CORPORATION,  a  Delaware corporation
("Holdings"),  READING &  BATES  DRILLING CO.,  an  Oklahoma corporation  (the
"Borrower"), the financial institutions party to the Credit Agreement referred
to below (each,  a "Bank" and, collectively, the "Banks"), CREDIT LYONNAIS NEW
YORK  BRANCH,   as  Co-Agent  (the   "Co-Agent"),  and  CHRISTIANIA   BANK  OG
KREDITKASSE, NEW  YORK BRANCH, as Agent  for the Banks (in  such capacity, the
"Agent") are parties  to a Credit Agreement,  dated as of  April 30, 1996  (as
amended, modified or supplemented from time to time, the "Credit Agreement");

            WHEREAS,  in  connection   with  the  Credit   Agreement,  various
Subsidiaries of the Borrower have entered into a Subsidiary Guaranty, dated as
of April  30, 1996  and (as  in effect  on the  date  hereof, the  "Subsidiary
Guaranty");

            WHEREAS, in connection with the Credit Agreement, the Borrower and
various of its  Subsidiaries have entered into a Security  Agreement, dated as
of April 30, 1996 (as in  effect on the date hereof, the "Security  Agreement"
and, together with the Subsidiary Guaranty, the "Documents"); and

            WHEREAS, the  New Subsidiary desires  to execute and  deliver this
Agreement in order to become a party to each of the Documents;


            NOW, THEREFORE, IT IS AGREED:

            1.    Subsidiary  Guaranty.    By  executing  and delivering  this
Agreement,  the  New  Subsidiary hereby  becomes  a  party  to the  Subsidiary
Guaranty as a  "Guarantor" thereunder,  and hereby expressly  and jointly  and
severally assumes all obligations and liabilities of a "Guarantor" thereunder,
subject to the limitations set forth therein.

            2.    Security  Agreement.    By  executing  and  delivering  this
Agreement,  the New  Subsidiary hereby  (i) becomes  a party  to the  Security
Agreement as an "Assignor" thereunder, (ii)  expressly assumes all obligations
and liabilities of  an "Assignor" thereunder  and (iii) pledges and  grants to
the  Collateral Agent,  for the  benefit of  Secured Creditors,  as collateral
security for  the prompt payment in full when due (whether at stated maturity,
by acceleration or  otherwise) of the Obligations (as defined  in the Security
Agreement), a  security interest  in, to  and for the  benefit of  the Secured
Creditors all of its right, title and interest in, to and under the Collateral
(as defined in the Security Agreement).  The New Subsidiary  hereby makes each
of the representations and  warranties contained in the Security  Agreement on
the date hereof, after giving effect to this Agreement.

            3.  Financing  Statements.   By  executing  and   delivering  this
Agreement, the  New Subsidiary  hereby agrees to  execute and  deliver to  the
Collateral  Agent  such  financing  statements,  in  form  acceptable  to  the
Collateral Agent, as  the Collateral Agent may request or  as are necessary or
desirable in the opinion of  the Collateral Agent to establish and  maintain a
valid,  enforceable,  first  priority   perfected  security  interest  in  the
Collateral (as defined in the Security Agreement) owned by the New Subsidiary.

            4.   Counterparts.  This Agreement may  be signed in any number of
counterparts, each of which shall  be an original, with the same  effect as if
the signatures thereto and hereto were upon the same instrument.

            5.   GOVERNING  LAW.   THIS  AGREEMENT SHALL  BE  GOVERNED BY  AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.



            IN WITNESS  WHEREOF, the undersigned has caused  this Agreement to
be duly executed and delivered as of the date first above written.



                                         READING & BATES DEVELOPMENT CO.

                                         By______________________________
                                            Title:


                                                                Exhibit 10.114



                              SUBSIDIARY GUARANTY


            SUBSIDIARY  GUARANTY, dated  as of  August  30, 1996  made by  the
undersigned (each a "Guarantor" and  collectively, the "Guarantors").   Except
as  otherwise  defined herein,  terms used  herein and  defined in  the Credit
Agreement (as hereinafter defined) shall be used herein as therein defined.


                             W I T N E S S E T H :


            WHEREAS, Reading & Bates Corporation, Reading & Bates Drilling Co.
(the "Borrower"),  various  financial institutions  from  time to  time  party
thereto  (the "Banks"),  Credit  Lyonnais  New York  Branch,  as Co-Agent  and
Christiania Bank og Kreditkasse, New York  Branch, as Agent (the "Agent") have
entered  into a  Credit Agreement,  dated as  of April  30, 1996  (as amended,
modified or supplemented from time to time, the "Credit Agreement"), providing
for the making of  Loans and the issuance of, and participation in, Letters of
Credit  as contemplated  therein (the Banks,  the Agent, the  Letter of Credit
Issuer, the  Collateral Agent and  the Trustee are herein  collectively called
the "Creditors");

            WHEREAS, the Borrower  owns, directly or  indirectly, 100% of  the
capital stock of each Guarantor;

            WHEREAS, it is a condition to the making of Loans and the issuance
of, and participation  in, Letters of Credit  under the Credit Agreement  that
each Guarantor shall have executed and delivered this Guaranty; and

            WHEREAS, each  Guarantor will obtain benefits  from the incurrence
of  Loans by  the Borrower  and the  issuance of  Letters of Credit  under the
Credit Agreement and,  accordingly, desires to execute this  Guaranty in order
to satisfy the conditions described  in the preceding paragraph and to  induce
the Banks  to make Loans to  the Borrower and  the Letter of Credit  Issuer to
issue Letters of Credit;


            NOW, THEREFORE,  in  consideration  of  the  foregoing  and  other
benefits accruing to each Guarantor, the receipt and sufficiency  of which are
hereby acknowledged, each Guarantor hereby makes the following representations
and warranties  to the  Creditors and  hereby covenants and  agrees with  each
Creditor as follows:

            1.  Each  Guarantor,  jointly   and  severally,  irrevocably   and
unconditionally, guarantees, as  primary obligor and not merely  as surety, to
the Creditors  the full and  prompt payment  when due (whether  at the  stated
maturity, by acceleration or otherwise) of  (x) the principal of and  interest
on the Notes issued  by, and the Loans made to, the  Borrower under the Credit
Agreement, and all reimbursement obligations and Unpaid  Drawings with respect
to the Letters of Credit  issued under the Credit Agreement and  (y) all other
obligations  (including obligations  which, but  for the automatic  stay under
Section 362(a) of the Bankruptcy Code, would become due) and liabilities owing
by the Borrower to the Creditors under the Credit Agreement (including,  with-
out  limitation,  indemnities,  Fees and  interest  thereon)  now  existing or
hereafter incurred  under, arising  out of  or in  connection with the  Credit
Agreement or any other Credit Document  and the due performance and compliance
with the  terms of the Credit  Documents by the Borrower  (all such principal,
interest,  liabilities and  obligations being  herein collectively  called the
"Guaranteed Obligations").   Each Guarantor understands,  agrees and  confirms
that the  Creditors may  enforce this Guaranty  up to the  full amount  of the
Guaranteed Obligations  against each Guarantor without  proceeding against any
other  Guarantor or  the Borrower,  against  any security  for the  Guaranteed
Obligations, or  under any  other guaranty  covering all or  a portion  of the
Guaranteed Obligations.   All payments  by each Guarantor under  this Guaranty
shall be  made on the  same basis as payments  by the Borrower  under Sections
4.03 and 4.04 of the Credit Agreement.

            2.  Additionally,   each   Guarantor,   jointly   and   severally,
unconditionally  and  irrevocably,  guarantees  the payment  of  any  and  all
Guaranteed Obligations  of the Borrower to the Creditors whether or not due or
payable by the Borrower upon the occurrence in respect of  the Borrower of any
of  the  events  specified  in  Section 9.05  of  the  Credit  Agreement,  and
unconditionally and irrevocably,  jointly and severally, promises  to pay such
Guaranteed Obligations to the Creditors, or order, on demand,  in lawful money
of the United  States.  This Guaranty shall constitute  a guaranty of payment,
and not of collection.

            3.  The  liability of  each Guarantor  hereunder is  exclusive and
independent of any security for  or other guaranty of the indebtedness  of the
Borrower whether  executed by such  Guarantor, any other Guarantor,  any other
guarantor or by any other party, and the liability of each Guarantor hereunder
shall not be affected  or impaired by (a) any  direction as to application  of
payment by the  Borrower or by any  other party, (b)  any other continuing  or
other guaranty, undertaking  or maximum  liability of  a guarantor  or of  any
other  party as to the indebtedness of the  Borrower, (c) any payment on or in
reduction  of any  such other  guaranty or  undertaking, (d)  any dissolution,
termination or  increase, decrease or change in personnel by the Borrower, (e)
any payment made to any Creditor on the indebtedness which any Creditor repays
the  Borrower pursuant  to  court  order  in any  bankruptcy,  reorganization,
arrangement, moratorium  or other debtor relief proceeding, and each Guarantor
waives any right to the deferral or modification of its  obligations hereunder
by reason of any such proceeding, (f) any action or inaction  by the Creditors
as contemplated in  Section 6 hereof, or  (g) any invalidity,  irregularity or
unenforceability  of all  or  part of  the Guaranteed  Obligations  or of  any
security therefor.

            4.  The obligations of each Guarantor hereunder are independent of
the obligations of any other  Guarantor, any other guarantor or  the Borrower,
and a  separate action or actions  may be brought and  prosecuted against each
Guarantor whether  or not action is  brought against any other  Guarantor, any
other guarantor  or the Borrower and  whether or not any  other Guarantor, any
other guarantor or the Borrower be joined in any  such action or actions.  Any
payment by  the Borrower  or other  circumstance  which operates  to toll  any
statute of limitations as to the Borrower shall operate to toll the statute of
limitations as to each Guarantor.

            5.  Each Guarantor  hereby waives  notice  of acceptance  of  this
Guaranty  and notice  of  any liability  to  which it  may  apply, and  waives
promptness, diligence,  presentment, demand  of  payment, protest,  notice  of
dishonor or nonpayment of any such liabilities, suit or taking of other action
by the Agent or any other Creditor against, and any other notice to, any party
liable  thereon  (including  such  Guarantor,   any  other  guarantor  or  the
Borrower).

            6.  Any Creditor may at any time and from time to time without the
consent of, or  notice to, any Guarantor, without  incurring responsibility to
such  Guarantor,  without  impairing  or releasing  the  obligations  of  such
Guarantor hereunder, upon or without  any terms or conditions and in  whole or
in part:

            (a)   change  the manner,  place or  terms of  payment of,  and/or
      change or  extend the  time of payment  of, renew or  alter, any  of the
      Guaranteed Obligations, any security therefor, or any liability incurred
      directly or indirectly in respect  thereof, and the guaranty herein made
      shall  apply  to the  Guaranteed  Obligations as  so  changed, extended,
      renewed or altered;

            (b)   take  and hold  security for the  payment of  the Guaranteed
      Obligations and  sell, exchange,  release,  surrender, realize  upon  or
      otherwise  deal with  in any  manner and  in any  order any  property by
      whomsoever  at any  time pledged  or mortgaged  to secure,  or howsoever
      securing, the  Guaranteed Obligations or any  liabilities (including any
      of those hereunder)  incurred directly or indirectly in  respect thereof
      or hereof, and/or any offset thereagainst;

            (c)   exercise or  refrain from exercising any  rights against the
      Borrower or others or otherwise act or refrain from acting;

            (d)   settle or compromise any of the Guaranteed Obligations,  any
      security therefor or  any liability (including  any of those  hereunder)
      incurred directly  or indirectly in  respect thereof or hereof,  and may
      subordinate the payment of all or any part thereof to the payment of any
      liability  (whether due  or not)  of  the Borrower  to creditors  of the
      Borrower;

            (e)   apply any  sums by whomsoever paid or  howsoever realized to
      any liability or liabilities of the Borrower to the Creditors regardless
      of what liabilities of the Borrower remain unpaid;

            (f)   release or substitute any one or more endorsers, guarantors,
      any Credit Party or other obligors;

            (g)   consent  to or waive any breach  of, or any act, omission or
      default under,  any of the Credit Documents or any of the instruments or
      agreements referred to therein, or otherwise amend, modify or supplement
      any of the  Credit Documents or any of such  other instruments or agree-
      ments; and/or

            (h)   act  or  fail to  act  in any  manner  referred  to in  this
      Guaranty which  may deprive such  Guarantor of its right  to subrogation
      against the  Borrower to  recover full indemnity  for any  payments made
      pursuant to this Guaranty.

            7.  No invalidity, irregularity or unenforceability of all or  any
part of the  Guaranteed Obligations or of any  security therefor shall affect,
impair or  be a defense to this Guaranty,  and this Guaranty shall be primary,
absolute and unconditional notwithstanding the  occurrence of any event or the
existence  of  any other  circumstances  which  might  constitute a  legal  or
equitable  discharge of a  surety or guarantor  except payment in  full of the
Guaranteed Obligations.

            8.  This Guaranty is a continuing one and all liabilities to which
it applies or may apply under the terms hereof shall  be conclusively presumed
to have been created  in reliance hereon.  No failure or delay  on the part of
any  Creditor in  exercising any  right,  power or  privilege hereunder  shall
operate  as a waiver thereof; nor shall  any single or partial exercise of any
right, power  or privilege  hereunder preclude any  other or  further exercise
thereof  or the exercise of  any other right, power or  privilege.  The rights
and remedies  herein expressly specified  are cumulative and not  exclusive of
any rights or remedies which any Creditor would otherwise have.   No notice to
or  demand on any Guarantor  in any case  shall entitle such  Guarantor to any
other further notice or demand in similar or other circumstances or constitute
a waiver of the  rights of any Creditor to any other or  further action in any
circumstances without  notice or demand.  It is not necessary for any Creditor
to inquire  into  the  capacity  or powers  of  the  Borrower or  any  of  its
Subsidiaries  or  the  officers,  directors,  partners  or  agents  acting  or
purporting  to act  on its  behalf, and  any indebtedness  made or  created in
reliance  upon the  professed  exercise  of such  powers  shall be  guaranteed
hereunder.

            9.  Any indebtedness of the Borrower  now or hereafter held by any
Guarantor is  hereby subordinated to the  indebtedness of the Borrower  to the
Creditors;  and such indebtedness  of the  Borrower to  any Guarantor,  if the
Agent,  after  an  Event  of  Default  has  occurred,  so  requests, shall  be
collected,  enforced  and  received  by  such Guarantor  as  trustee  for  the
Creditors and be paid over to the Creditors on account of the indebtedness  of
the  Borrower to  the Creditors,  but without  affecting or  impairing in  any
manner the liability  of such  Guarantor under  the other  provisions of  this
Guaranty.   Prior to the transfer  by any Guarantor of any  note or negotiable
instrument evidencing any indebtedness of the Borrower to such Guarantor, such
Guarantor shall mark such note or negotiable instrument with a legend that the
same is subject to this subordination.  Without limiting the generality of the
foregoing, each  Guarantor hereby agrees with  the Creditors that it  will not
exercise any right of subrogation which it may at any time otherwise have as a
result  of  this Guaranty  (whether  contractual,  under  Section 509  of  the
Bankruptcy  Code  or otherwise)  until  all Guaranteed  Obligations  have been
irrevocably paid in full in cash.

            10.  (a)  Each Guarantor  waives any  right  (except as  shall  be
required by applicable  law and cannot be waived) to  require the Creditors to
(A) proceed against the Borrower, any other Guarantor, any other guarantor  or
any other party,  (B) proceed against  or exhaust any  security held from  the
Borrower, any other  Guarantor, any other guarantor or any  other party or (C)
pursue any  other remedy in the  Creditors' power whatsoever.   Each Guarantor
waives any defense based on or arising out of any defense of the Borrower, any
other Guarantor, any other guarantor or  any other party other than payment in
full of the  Guaranteed Obligations, including without limitation  any defense
based  on or  arising  out  of  the  disability of  the  Borrower,  any  other
Guarantor, any other guarantor or any  other party, or the unenforceability of
the  Guaranteed  Obligations  or any  part  thereof  from  any  cause, or  the
cessation  from any cause of the liability  of the Borrower other than payment
in full of the Guaranteed Obligations.   The Creditors may, at their election,
foreclose on any security held by  the Agent or the other Creditors by  one or
more judicial  or nonjudicial sales, whether  or not every aspect  of any such
sale  is commercially  reasonable (to  the extent  such  sale is  permitted by
applicable law),  or exercise any other right or remedy the Creditors may have
against the Borrower or any other party, or any security, without affecting or
impairing in  any way the liability  of any Guarantor hereunder  except to the
extent  the Guaranteed  Obligations have been  paid in  full.   Each Guarantor
waives any defense  arising out of  any such election  by the Creditors,  even
though  such  election   operates  to  impair  or  extinguish   any  right  of
reimbursement  or subrogation  or  other  right or  remedy  of such  Guarantor
against the Borrower or any other party or any security.

            (b)  Each  Guarantor   waives   all  presentments,   demands   for
performance,  protests and  notices, including  without limitation  notices of
nonperformance, notices of protest, notices of dishonor, notices of acceptance
of this Guaranty, and notices  of the existence, creation or incurring  of new
or additional  indebtedness.   Each Guarantor  assumes all responsibility  for
being and  keeping itself informed  of the Borrower's financial  condition and
assets, and  of all other circumstances bearing upon the risk of nonpayment of
the Guaranteed Obligations and the nature, scope and extent of the risks which
such Guarantor  assumes and  incurs hereunder, and  agrees that  the Creditors
shall  have  no duty  to advise  any Guarantor  of  information known  to them
regarding such circumstances or risks.

            11.  The Creditors agree  that this Guaranty may be  enforced only
by the action of  the Agent or the Collateral Agent, in  each case acting upon
the instructions  of the Required  Banks and that  no Creditor shall  have any
right individually  to seek to enforce  or to enforce this  Guaranty, it being
understood and  agreed that such rights  and remedies may be  exercised by the
Agent or the Collateral Agent for the benefit  of the Creditors upon the terms
of this Guaranty.   The Creditors further agree that this  Guaranty may not be
enforced  against  any  director,  officer,  employee or  stockholder  of  any
Guarantor  (except  to  the  extent  such  stockholder  is  also  a  Guarantor
hereunder).

            12.  Each Guarantor  covenants and  agrees that  on and  after the
date hereof  and until the  termination of  the Total Commitment  and when  no
Letter of  Credit or Note  remains outstanding and all  Guaranteed Obligations
have  been paid  in full,  such  Guarantor shall  take, or  will refrain  from
taking, as the case may be, all actions that are necessary to be  taken or not
taken so that no  violation of any provision, covenant  or agreement contained
in Section 7 or 8 of the Credit Agreement, and so that no Event of Default, is
caused by the actions of such Guarantor or any of its Subsidiaries.

            13.  The Guarantors hereby jointly and  severally agree to pay all
reasonable out-of-pocket  costs and  expenses (x), after  an Event  of Default
shall have occurred and be continuing, of each Creditor in connection with the
enforcement  of this  Guaranty and  the protection  of such  Creditor's rights
hereunder   (including,   without   limitation,   the  reasonable   fees   and
disbursements of counsel  (including in-house counsel) employed by  any of the
Creditors) and  (y) of the Agent  in connection with any  amendment, waiver or
consent relating hereto  (including, without limitation,  the reasonable  fees
and  disbursements of  counsel (including  in-house counsel)  employed  by the
Agent.

            14.  This Guaranty shall  be binding upon  each Guarantor and  its
successors and  assigns and shall  inure to the  benefit of the  Creditors and
their successors and assigns.

            15.  Neither  this  Guaranty  nor  any  provision  hereof  may  be
changed, waived, discharged  or terminated except with the  written consent of
the Required Banks (or to  the extent required by Section 12.12  of the Credit
Agreement, with the written consent of  each Bank) and each Guarantor affected
thereby  (it being understood  that the addition  or release  of any Guarantor
hereunder  shall not  constitute a  change,  waiver, discharge  or termination
affecting any Guarantor other than the Guarantor so added or released).

            16.  Each Guarantor  acknowledges that an executed  (or conformed)
copy of each of  the Credit Documents has been made available to its principal
executive officers and such officers are familiar with the contents thereof.

            17.  In  addition  to any  rights now  or hereafter  granted under
applicable law  (including, without  limitation, Section 151  of the  New York
Debtor and Creditor Law) and not by way of limitation of any such rights, upon
the occurrence and during the continuance of an Event of Default (such term to
mean and  include any "Event  of Default" as  defined in the  Credit Agreement
continuing  after  any  applicable  grace  period),  each Creditor  is  hereby
authorized at any time or from time  to time, without notice to any  Guarantor
or to any other Person, any such notice being expressly waived, to set off and
to  appropriate and apply  any and all  deposits (general or  special) and any
other indebtedness at any time  held or owing by  such Creditor to or for  the
credit  or the  account  of such  Guarantor,  against and  on  account of  the
obligations  and liabilities  of such  Guarantor to  such Creditor  under this
Guaranty, irrespective of  whether or  not such Creditor  shall have made  any
demand  hereunder  and although  said  obligations,  liabilities, deposits  or
claims, or any of them, shall be contingent or unmatured.

            18.  All  notices,  requests,   demands  or  other  communications
pursuant hereto shall be deemed to have been duly given or made when delivered
to the Person to which such notice, request, demand or  other communication is
required or  permitted to be given  or made under this  Guaranty, addressed to
such  party at  (i) in the  case of  any Creditor,  as provided in  the Credit
Agreement and  (ii) in  the case of  any Guarantor, at  its address  set forth
opposite its  signature below; or in any case at  such other address as any of
the Persons listed above may hereafter notify the others in writing.

            19.  If  claim is  ever made  upon any  Creditor for  repayment or
recovery of any amount or amounts received  in payment or on account of any of
the Guaranteed Obligations and any of the aforesaid payees repays  all or part
of said amount by reason of (a) any  judgment, decree or order of any court or
administrative body having jurisdiction over such payee or any of its property
or (b) any  settlement or compromise of any such claim  effected by such payee
with any such  claimant (including the Borrower), then and  in such event each
Guarantor  agrees  that  any  such  judgment,  decree,  order,  settlement  or
compromise shall  be binding upon such Guarantor,  notwithstanding any revoca-
tion  hereof  or  of any  other  instrument  evidencing any  liability  of the
Borrower,  and such  Guarantor shall  be and  remain liable  to the  aforesaid
payees  hereunder for the amount so repaid  or recovered to the same extent as
if such amount had never originally been received by any such payee.

            20.  (a)  THIS GUARANTY  AND THE  RIGHTS  AND OBLIGATIONS  OF  THE
CREDITORS AND OF THE UNDERSIGNED HEREUNDER  SHALL BE GOVERNED BY AND CONSTRUED
IN  ACCORDANCE WITH THE  LAW OF THE  STATE OF NEW  YORK.  Any  legal action or
proceeding  with respect to this Guaranty or  any other Credit Document may be
brought in  the courts of  the State of  New York or  of the United  States of
America for  the Southern District of New York, and, by execution and delivery
of  this Guaranty, each Guarantor hereby accepts  for itself and in respect of
its property, generally and unconditionally, the jurisdiction of the aforesaid
courts and hereby irrevocably  waives any right it  may have to object  to the
laying of venue  of any such action or proceeding in  the aforesaid courts and
hereby further  irrevocably waives and agrees  not to plead or  claim that any
such  action or proceeding  has been brought  in an inconvenient  forum.  Each
Guarantor hereby  irrevocably designates, appoints and  empowers the Borrower,
with offices on the date hereof at 901 Threadneedle, Suite 200, Houston, Texas
77079 as its designee, appointee and  agent to receive, accept and acknowledge
for any on  its behalf, and in respect of its property, service or any and all
legal process, summons, notices and documents  which may be served in any such
action or  proceeding.  If for  any reason such designee,  appointee and agent
shall cease to be available to act as such, each Guarantor agrees to designate
a new designee, appointee and agent in New  York City on the terms and for the
purposes of  this provision satisfactory to the Agent for the Banks under this
Guaranty.   Each  Guarantor further  irrevocably  consents to  the service  of
process  out  of any  of  the  aforementioned courts  in  any  such action  or
proceeding by the mailing  of copies thereof by registered  or certified mail,
postage prepaid,  to each  Guarantor at  its address  set  forth opposite  its
signature  below.   Nothing  herein  shall  affect the  right  of  any of  the
Creditors to serve process in any other manner permitted by law or to commence
legal proceedings  or otherwise  proceed against each  Guarantor in  any other
jurisdiction.

            (b)  Each Guarantor hereby irrevocably  waives any objection which
it may now  or hereafter have to the  laying of venue of any  of the aforesaid
actions or proceedings arising out  of or in connection with this  Guaranty or
any  other credit  document brought in  the courts  referred to  in clause (a)
above and hereby  further irrevocably waives and agrees not  to plead or claim
in any such court that such action or proceeding brought in any such court has
been brought in an inconvenient forum.

            21.  In  the event that  all of the  capital stock of  one or more
Guarantors is sold  or otherwise disposed of or  liquidated in compliance with
the requirements  of Section  8.02 of  the Credit Agreement  (or such  sale or
other disposition has been approved  in writing by the Required Banks  (or all
Banks if required by Section 12.12 of the Credit Agreement))  and the proceeds
of  such sale, disposition  or liquidation are applied  in accordance with the
provisions of the  Credit Agreement, to the extent  applicable, such Guarantor
shall be released from this Guaranty and this Guaranty shall, as  to each such
Guarantor or Guarantors,  terminate, and have no  further force or  effect (it
being understood and agreed that the sale of any Person that owns, directly or
indirectly, the capital stock of any Guarantor shall be deemed to be a sale of
such Guarantor for the purposes of this Section 21).

            22.  At  any time  a payment  in respect  of the  Guaranteed Obli-
gations is  made under this  Guaranty, the right  of contribution, if  any, of
each Guarantor  against any other  Guarantor required  to make any  payment to
such  Guarantor  pursuant  to  this  Section  22  (a "Contributor")  shall  be
determined as provided  in the immediately following sentence,  with the right
of contribution of each  Guarantor to be revised and restated as  of each date
on  which  a  payment  (a  "Relevant  Payment")  is  made  on  the  Guaranteed
Obligations under this Guaranty.  At any time that a Relevant  Payment is made
by a Guarantor that results  in the aggregate payments made by  such Guarantor
in  respect of  the Guaranteed Obligations  to and  including the  date of the
Relevant  Payment  exceeding  such  Guarantor's  Contribution  Percentage  (as
hereinafter  defined) of  the aggregate  payments  made by  all Guarantors  in
respect  of  the  Guaranteed Obligations  to  and including  the  date  of the
Relevant  Payment (such  excess,  the "Aggregate  Excess  Amount"), each  such
Guarantor shall have a  right of contribution against each Contributor who has
made payments  in respect of the  Guaranteed Obligations to and  including the
date  of  the  Relevant  Payment  in  an  aggregate   amount  less  than  such
Contributor's  Contribution Percentage of  the aggregate payments  made to and
including the date of the Relevant Payment by all Guarantors in respect of the
Guaranteed Obligations (the  aggregate amount of such  deficit, the "Aggregate
Deficit Amount")  in an amount equal to (x) a  fraction the numerator of which
is the Aggregate Excess Amount of such Guarantor and the  denominator of which
is  the Aggregate  Excess  Amount of  all  Guarantors  multiplied by  (y)  the
Aggregate  Deficit  Amount  of  such  Contributor.   A  Guarantor's  right  of
contribution, if any, pursuant to  the preceding sentences shall arise  at the
time of each computation, subject to  adjustment to the time of any subsequent
computation; provided, that  no Guarantor may take any action  to enforce such
right until the Guaranteed Obligations have been paid in full,  all Letters of
Credit have terminated and the Total Commitment has been terminated,  it being
expressly recognized  and agreed  by all parties  hereto that  any Guarantor's
right  of  contribution  arising  pursuant  to this  Section  22  against  any
Contributor shall  be expressly junior  and subordinate to  such Contributor's
obligations and liabilities  in respect of the Guaranteed  Obligations and any
other  obligations owing under this Guaranty.   As used in this Agreement, (i)
each  Contributor's  "Contribution  Percentage"   shall  mean  the  percentage
obtained by dividing (x) the Adjusted Net Worth of such Contributor by (y) the
aggregate Adjusted Net Worth  of all Guarantors; (ii) the "Adjusted Net Worth"
of  each Guarantor  shall  mean the  greater  of  (x) the  Net  Worth of  such
Guarantor or (y) zero; and (iii) the "Net Worth" of each  Guarantor shall mean
the amount by which the fair  salable value of such Guarantor's assets on  the
Initial  Borrowing  Date  exceeds its  existing  debts  and  other liabilities
(including contingent liabilities, but without giving effect to any Guaranteed
Obligations arising under this Guaranty), in  each case after giving effect to
all transactions occurring on the Initial Borrowing Date.

            23.  Each  Guarantor recognizes  and agrees  that, except  for any
right of  contribution arising  pursuant to Section  22, until  the Guaranteed
Obligations have  been paid in full,  each Guarantor who makes  any payment in
respect of the  Guaranteed Obligations shall have no right  of contribution or
subrogation against any other Guarantor  in respect of such payment, any  such
right  of contribution  or subrogation  arising under  law or  otherwise being
expressly waived by all Guarantors  until the Guaranteed Obligations have been
paid in full.

            24.  Each Guarantor recognizes and acknowledges that the rights to
contribution arising hereunder shall constitute an asset in favor of the party
entitled  to such contribution.   In this  connection, each Guarantor  has the
right  to waive  its contribution  right against  any  other Guarantor  to the
extent that after  giving effect  to such waiver  such Guarantor would  remain
solvent, in the determination of the Required Banks.

            25.  This  Guaranty may be executed in  any number of counterparts
and  by the different parties  hereto on separate  counterparts, each of which
when so executed  and delivered shall be  an original, but all  of which shall
together  constitute one  and  the same  instrument.   A  set of  counterparts
executed by all the parties hereto shall be lodged with the Guarantors and the
Agent.

            26.  EACH GUARANTOR  HEREBY IRREVOCABLY  WAIVES  ALL RIGHTS  TO  A
TRIAL BY  JURY IN  ANY ACTION,  PROCEEDING OR COUNTERCLAIM  ARISING OUT  OF OR
RELATING  TO THIS  GUARANTY, THE  OTHER CREDIT  DOCUMENTS OR  THE TRANSACTIONS
CONTEMPLATED HEREBY OR THEREBY.

            27.  It  is  understood and  agreed  that  any  Subsidiary of  the
Borrower that is required  to execute a counterpart of  this Guaranty pursuant
to the  Credit Agreement shall  automatically become a Guarantor  hereunder by
executing a counterpart hereof and delivering the same to the Agent.

            28.  All  payments made  by any  Guarantor hereunder will  be made
without setoff, counterclaim or other defense.


            IN WITNESS WHEREOF, each Guarantor  has caused this Guaranty to be
executed and delivered as of the date first above written.


Address for each Guarantor

c/o Reading & Bates Drilling Co.    READING & BATES DEVELOPMENT CO.
901 Threadneedle
Suite 200
Houston, Texas  77079               By_______________________________
Attention:  General Counsel                 Title:
Tel: (713) 496-5000
Fax: (713) 496-0285


Accepted and Agreed to:

CHRISTIANIA BANK OG KREDITKASSE,
  NEW YORK BRANCH, 
  as Agent

By____________________________
                  Title:

By____________________________
  Title:



                                                              Exhibit 10.115


                INDENTURE OF FIRST NAVAL MORTGAGE


                        RB DEVELOPMENT CO.

                             - and -

              CHRISTIANIA BANK OG KREDITKASSE, agent

                           as Mortgagee


                         o.p.v. SEILLEAN

                      Dated August __, 1996

=============================================================================

                              INDEX

CLAUSE    SUBJECT MATTER                                     PAGE

  1       REPRESENTATIONS AND COVENANTS . . . . . . . . . . . . . . . . . .  2 
  2       DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . .  4 
  3       MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9 
  4       PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . . 10 
  5       PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . . . . 10 
  6       INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 
  7       Vessel COVENANTS  . . . . . . . . . . . . . . . . . . . . . . . . 14 
  8       PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . . . . 18 
  9       ENFORCEABILITY AND MORTGAGEE'S POWERS . . . . . . . . . . . . . . 19 
  10      APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . . . . 21 
  11      FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . . . . 22 
  12      POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . . . . 22 
  13      INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 
  14      EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 
  15      COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . . . . 25 
  16      ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 
  17      TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . . . . 25 
  18      WAIVER; AMENDMENT . . . . . . . . . . . . . . . . . . . . . . . . 25 
  19      MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . . . 25 
  20      JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . . . . 26 

EXHIBIT 1 FORM OF CREDIT AGREEMENT
EXHIBIT 2 FORM OF AMENDMENT 
EXHIBIT 3 FORM OF SECOND AMENDMENT
EXHIBIT 4 FORM OF SUBSIDIARY ASSUMPTION AGREEMENT
EXHIBIT 5 FORM OF SUBSIDIARY GUARANTY

==============================================================================

       THIS INDENTURE  OF FIRST NAVAL MORTGAGE  made and entered into  this __
day of August 1996, between READING & BATES  DEVELOPMENT CO., corporation duly
constituted and existing in conformity with the laws of the  State of Delaware
with its  principal  office at  901 Threadneedle,  Suite  200, Houston,  Texas
77079  (hereinafter called the  "Owner") and CHRISTIANIA  BANK OG KREDITKASSE,
NEW YORK BRANCH  having offices at 11 West 42nd Street, New York, NY 10036, as
agent  for   the  Banks  (as  hereinafter  defined)  (hereinafter  called  the
"Mortgagee"), on the Panamanian oil production vessel SEILLEAN of 50,098 gross
registered tons,  15,278 net  registered tons  and with a  length of  236.47 a
breadth of 37.00 and a depth of 19.80 and Provisional Patent of Navigation No.
_________ (hereinafter called  the "Vessel"), duly  registered under the  laws
and  flag of  the Republic  of Panama,  the detailed  description of  which is
hereinafter more particularly set forth.

                             W I T N E S S E T H :

WHEREAS

(A)    The  Owner is the sole owner of the  whole of the oil production vessel
       SEILLEAN documented under the laws and flag of the Republic of Panama.

(B)    By a Credit Agreement  dated as of April 30, 1996 (as amended, restated
       or  supplemented from  time  to  time,  the "Credit  Agreement")  among
       Reading  & Bates  Corporation,  a  Delaware corporation,  as  guarantor
       ("Holdings"), Reading & Bates Drilling Co,  an Oklahoma corporation, as
       borrower  (the "Borrower"),  the  banks  party thereto  (the  "Banks"),
       Credit Lyonnais New York Branch,  as co-agent (the "Co-Agent")  and the
       Mortgagee, as agent,  (the form of which Credit Agreement together with
       the form  of promissory  note  of the  Borrower attached  as Exhibit  B
       thereto  but  without the  remaining  exhibits  is attached  hereto  as
       Exhibit 1), it was  agreed among other things that the Banks would make
       available  to the Borrower  a reducing  revolving credit  facility (the
       "Facility") in the maximum aggregate  principal amount at any  one time
       outstanding   of    One   Hundred   Million   United   States   Dollars
       (U.S.$100,000,000), providing for the making of Loans  and the issuance
       of and participations in Letters of Credit as contemplated therein. 

(C)    By an Amendment to the  Credit Agreement dated as of July 9,  1996 (the
       "Amendment",  the  form  of  which  Amendment  without  attachments  is
       attached  hereto  as  Exhibit  2), among  Holdings,  the  Borrower, the
       Banks,  the Co-Agent and the  Mortgagee, as agent,  it was agreed among
       other things that the  Banks would increase the amount available to the
       Borrower under  the  Facility  to  an  aggregate  amount  at  any  time
       outstanding  of  One  Hundred  Forty   Million  United  States  Dollars
       (US$140,000,000).    As required  by  Article  1515  Section  3 of  the
       Commercial  Code of Panama, the dates on which payments of principal in
       respect of  the Loans are due may be  determined from the provisions of
       the Credit Agreement including Section 3.03.

(D)    By an Amendment to the Credit Agreement dated as of August ____,  1996,
       entered into by  Holdings, the Borrower,  the Banks,  the Co-Agent  and
       the  Mortgagee, as  agent  (the "Second  Amendment,  the form  of which
       Second Amendment without attachments is attached hereto  as Exhibit 3),
       it  was  agreed to  amend  Section  7.13  of the  Credit  Agreement  by
       deleting  all references  to "RB  Drilling  Co." contained  therein and
       inserting in lieu  thereof references to "Reading  & Bates  Development
       Co.".

(E)    The obligations  of  the Borrower  with  respect  to the  Facility  are
       evidenced  by the  Credit  Agreement and  the  other Credit  Documents,
       including the  promissory notes of the Borrower payable to the order of
       the respective Banks  (each a  "Note" and,  collectively, the  "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(F)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed and delivered  a Subsidiary Assumption Agreement  (as amended,
       restated  or supplemented from time to time, the "Subsidiary Assumption
       Agreement",  the  form of  which  is  attached  hereto  as Exhibit  4),
       pursuant to which  the Owner agreed to  become a party to  a Subsidiary
       Guaranty  (the "Subsidiary  Guaranty",  the  form of  which  Subsidiary
       Guaranty without attachments  is attached hereto as Exhibit 5) in favor
       of the  Agent  guaranteeing the  performance  by  the Borrower  of  its
       obligations under the Credit  Agreement and the other Credit Documents.

(G)    This Mortgage is  made for the benefit  of the Mortgagee to  secure the
       guaranty by the  Borrower of (i) the  full and prompt payment  when due
       of (x) the principal  and interest on the Notes issued, and Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect to the Letters  of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of the  Borrower  to the  Secured  Creditors (as  hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit Agreement and the other  Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by  the Borrower  with  all of  the terms,
       conditions  and agreements  contained in  the Credit  Agreement and the
       other Credit  Documents including, without  limitation, this  Mortgage;
       (ii) any and  all sums advanced by  the Mortgagee in order  to preserve
       the  Collateral  (as  hereinafter defined)  or  preserve  its  security
       interest  in the Collateral;  (iii) in the event  of any proceeding for
       the  collection or  enforcement of  any  indebtedness, obligations,  or
       liabilities of the Borrower referred  to in clause (i) above,  after an
       Event of Default  shall have occurred and be continuing, the reasonable
       expenses of the  Mortgagee of re-taking, holding, preparing for sale or
       lease,  selling  or  otherwise   disposing  of  or  realizing  on   the
       Collateral,  or  of  any  exercise  by  the  Mortgagee  of  its  rights
       hereunder, together with reasonable  attorneys' fees of counsel  to the
       Mortgagee and court  costs; and (iv) all amounts paid by any Indemnitee
       (as  defined herein)  as  to which  such  Indemnitee has  the  right to
       reimbursement  under Clause 13 of  this Mortgage (all such obligations,
       liabilities, sums and  expenses referred to in clauses (i) through (iv)
       above being  collectively referred  to as  the "Obligations").   It  is
       acknowledged   and  agreed   that  the   "Obligations"  shall   include
       extensions of credit of the types described  above, whether outstanding
       on the  date of this Mortgage  or extended from time  to time after the
       date of this Mortgage.

(H)    This Indenture of First  Naval Mortgage, which  is entered into by  the
       Owner in consideration  of the Banks  entering into  the Amendment  and
       the Second Amendment  and agreeing to  make the  Facility available  to
       the  Borrower  and as  a  condition  thereto  and for  other  good  and
       valuable consideration provided by the Banks (the  sufficiency of which
       the Owner hereby acknowledges).

NOW, THEREFORE, the appearing parties, each  in the name and on behalf of  his
respective principal, state that  they hereby execute this Indenture  of First
Naval Mortgage pursuant to the following representations:

1.     REPRESENTATIONS AND COVENANTS

1.01   The Owner represents and covenants to the Mortgagee that:

       a.    The Owner is the  sole and absolute owner of the Vessel under the
             laws and flag of the Republic of Panama;

       b.    The Owner, as sole legal and beneficial owner  of the Vessel, has
             received   and  presently  possesses   a  Provisional  Patent  of
             Navigation for the  Vessel, duly issued by the Republic of Panama
             under No. ________;

       c.    Neither the whole nor  any share in the Vessel is  subject to any
             Security  Interest  (as  defined herein)  (except  for  Permitted
             Liens (as defined herein) and the lien of this Mortgage);

       d.    the Owner  has not  sold or  transferred, or  agreed  to sell  or
             transfer, title to the Vessel or any share therein;

       e.    the Owner  is a corporation  duly organized and validly  existing
             and in good standing under the laws of the State of Delaware;

       f.    the  Owner  has full  power  and  authority  (i)  to execute  and
             deliver this Mortgage,  (ii) to mortgage the  Vessel as  security
             for the Obligations and (iii)  to comply with the  provisions of,
             and perform all its obligations under, this Mortgage;

       g.    the Owner  has complied  with all  statutory  and other  material
             requirements  relative   to  the   ownership,  registration   and
             operation of the Vessel;

       h.    the  Owner  has  taken  all  necessary  action  to  authorize the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the legal,  valid  and  binding obligation  of  the
             Owner enforceable against the Owner in accordance with  its terms
             (except  to   the  extent  limited   by  applicable   bankruptcy,
             reorganization,  insolvency, moratorium or  other laws of general
             application  relating   to  or   affecting  the  enforcement   of
             creditors' rights  as from  time to  time in  effect and  general
             equitable principles)  and when  preliminarily recorded with  the
             Public Registry  in Panama  through the  Panamanian Consulate  in
             London, England will create  a legal, valid and enforceable first
             preferred  mortgage  lien  on the  Vessel  subject  only  to  the
             permanent filing  of  this Mortgage  in  the Public  Registry  in
             Panama within six  months of the date of the preliminary recorded
             filing;

       i.    the entry  into and  performance by  the Owner  of this  Mortgage
             does  not and  will  not during  the  Credit Facility  Period (as
             defined herein) violate  in any respect (i) any law or regulation
             of any  governmental or official  authority or body,  or (ii) any
             of  the  constitutive  documents  of   the  Owner  including  the
             Certificate of Incorporation or By-laws, as amended from  time to
             time,  or  (iii)  any  material   agreement,  contract  or  other
             undertaking to which  the Owner is  a party or  which is  binding
             upon the Owner or any of its assets;

       j.    all  consents, licenses, approvals and authorizations required in
             connection  with  the  entry  into,   performance,  validity  and
             enforceability   of    this   Mortgage   and   the   transactions
             contemplated hereby  and thereby  have been  obtained and are  in
             full force  and  effect and  will  be  so maintained  during  the
             Credit Facility Period;

       k.    save for such  registrations and filings  as are  referred to  in
             this  Mortgage, it  is not necessary  for the legality, validity,
             enforceability  or admissibility  in  evidence  of this  Mortgage
             that  it or any document  relating thereto  be registered, filed,
             recorded or enrolled  with any court or authority in any relevant
             jurisdiction or that any stamp, registration  or similar taxes be
             paid on or in relation to this Mortgage;

       l.    the  Owner is  in compliance  with  all applicable  Environmental
             Laws (as  defined herein) relating  to the Vessel, its  operation
             and management;

       m.    the Owner  has obtained all  Environmental Approvals (as  defined
             herein) and is in compliance with all requests thereof;

       n.    no Environmental  Claim  (as defined  herein)  has been  made  or
             threatened  against the Owner or otherwise in connection with the
             Vessel;

       o.    no  Environmental   Incident  (as   defined  herein)   which  has
             resulted, or which  could reasonably be expected to result, in an
             Environmental Claim in excess of US$200,000 has occurred; and

       p.    The  Owner  hereby affirms  as  its  representations all  of  the
             statements contained in the "WHEREAS" clauses of this Mortgage.

1.02   The representations and  warranties of the Owner set out in Clause 1.01
       shall survive the execution  of this Mortgage and shall be deemed to be
       repeated at the time  of the  making of each  Loan (as defined  herein)
       and at the time of the issuance of each Letter of Credit,  with respect
       to the facts and circumstances existing  at each such time, as if  made
       at each such time.

1.03   The  Mortgagee  represents  that  the  Banks  have  made  the  Facility
       available  to  the Owner,  as  evidenced  by,  inter  alia, the  Credit
       Agreement, the  Notes and the Security  Documents (as  defined herein),
       and  accepts  the  Mortgage constituted  by  this  instrument upon  the
       Vessel as security  for the due and  prompt payment and  performance of
       the obligations of the  Owner under the Credit Agreement and  the other
       Credit Documents.

1.04   Each  of the contracting parties declares that it is satisfied with the
       representations and covenants  made by the  other and  accepts them  as
       true;  and the  parties  mutually  acknowledge their  respective  legal
       status as  well  as the  authority  of  the persons  representing  them
       respectively in  this instrument  to sign the  same on behalf  of their
       respective principals.

2.     DEFINITIONS AND INTERPRETATION

2.01   In  this Mortgage unless the  context otherwise requires, the following
       expressions shall have the following meanings:

       "Agent" shall have the same  meaning for such term as set forth  in the
       Credit Agreement;

       "Amendment" means  the  Amendment  dated  as  of  July  9,  1996  among
       Holdings, the Borrower, the Banks,  the Co-Agent and the  Mortgagee, as
       agent first referred to in Recital (C) hereto; 

       "Bank" means  any lender  listed from time  to time on  Annex 1  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral Assignment of  Insurances" means the Collateral  Assignment
       of Insurances in  respect of the Vessel  executed or to be  executed by
       the Owner in favor of the Agent;

       "Commitment" shall have the same meaning for such  term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the Credit  Agreement, dated as  of April 30,
       1996, among  Holdings, the Borrower,  the Banks, the  Co-Agent, and the
       Mortgagee, as  agent  as  amended  by  the  Amendment  and  the  Second
       Amendment  first referred  to  in Recital  (B)  hereto, and  as further
       amended, restated or supplemented from time to time; 

       "Credit Documents" shall have  the meaning for such  term as set  forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no  Letters  of  Credit  remain outstanding  and  the  Unpaid  Drawings
       together with  interest, fees  and all  other obligations  are paid  in
       full;

       "Credit Party" shall have  the same meaning for such term  as set forth
       in the Credit Agreement;

       "Default  Rate"  shall  mean   the  rate  of  interest  calculated   in
       accordance with Section 1.07(b) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal reports  prepared  by  Holdings  or any  of  its  Subsidiaries
       solely  in the ordinary  course of business of  such entity  and not in
       response  to any  third  party  action  or  request  of  any  kind)  or
       proceedings relating in any way to any  Environmental Law or any permit
       issued,  or  any  approval  given,  under any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by    any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release of  Environmentally
       Sensitive  Material  from  the  Vessel,  (ii)  any  incident  in  which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the Vessel  and which involves  collision between  the Vessel  and
       such other  vessel or some  other incident of  navigation or operation,
       in  either  case, where  the  Vessel  or  the  Owner  are  actually  or
       allegedly at  fault or otherwise liable (in whole  or in part) or (iii)
       any incident  in which Environmentally  Sensitive Material is  released
       from a vessel  other than the Vessel  and where the Vessel  is actually
       or potentially  liable to  be arrested  as  a result  and/or where  the
       Owner is actually  or allegedly at fault  or otherwise liable  (and, in
       each   such  case,   "release"  shall   mean   disposing,  discharging,
       injecting, spilling,  leaking, leaching,  dumping, emitting,  escaping,
       emptying,  seeping, placing  and  the like,  into or  upon any  land or
       water or air, or otherwise entering into the environment);

       "Environmental   Laws"   means  all   applicable   laws,   regulations,
       conventions  and  agreements   whatsoever  relating  to  pollution   or
       protection of the  environment (including, without limitation,  the Oil
       Pollution  Act of 1990  (33 U.S.C.   2701 et  seq.), the Comprehensive
       Environmental Response,  Compensation, and  Liability Act  of 1980  (42
       U.S.C.  9601  et seq.), the Hazardous Materials Transportation Act (49
       U.S.C.  1801 et  seq.), the Resource Conservation and Recovery  Act of
       1976 (42 U.S.C.   6901 et seq.),  the Clean Air Act (42  U.S.C.  7401
       et seq.), the Federal Water Pollution Control Act (33 U.S.C.  1251  et
       seq.) and the Toxic  Substances Control Act (15 U.S.C.   2601 et seq.)
       (all  of the  foregoing as  amended), and  any  comparable laws  of the
       individual States of the  United States of America  or any other  state
       or nation);

       "Fees"  shall have the same meaning  for such term as  set forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation,  transformers  or other
       equipment   that  contained,   electric  fluid   containing  levels  of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous  waste," "restricted  hazardous  waste," "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental Law;  and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression  includes all  entries  of the  Vessel  in a  protection and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered  into in  respect  of  the Vessel  or  otherwise  by the  Owner
       (whether  in the sole  name of the Owner  or in the joint  names of the
       Owner and  the Agent)  and all  benefits thereof  (including claims  of
       whatsoever nature and return of premiums);

       "Interest  Period" shall  have the  same meaning  for such  term as set
       forth in Section 1.08 of the Credit Agreement;

       "Letter  of Credit" shall  have the same meaning  for such  term as set
       forth in Section 2.01 of the Credit Agreement;

       "Loan(s)"  shall have the  same meaning for such  term as  set forth in
       the Credit Agreement;

       "Major Casualty"  means any casualty  to the Vessel  in respect whereof
       the claim or the aggregate  of the claims against all insurers,  before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means  each  promissory note  of  the  Borrower referred  to  in
       Recital (D) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (F) hereto;

       "Oil Pollution  Act 1990" means the  Oil Pollution Act 1990  (33 U.S.C.
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       semi-submersible  drilling  rig  JACK  BATES   owned  by  the  Borrower
       documented under  the laws  and flag of  the United  States of  America
       with Official Number 906283  of 19,928 gross registered tons and 14,948
       net registered  tons; (ii) the jack-up drilling rig D. R. STEWART owned
       by  Reading &  Bates  Exploration  Co. ("R&B  Exploration")  documented
       under the laws and flag of  the United States of America with  Official
       Number 626904 of 6,494 gross  registered tons and 5,834  net registered
       tons;  (iii) the  drilling tender  W.D. KENT owned  by R&B  Exploration
       documented under  the laws  and flag  of the  United States of  America
       with Official  Number 583169 of  5,383 gross registered  tons and 4,185
       net registered tons;  (iv) the jack-up drilling rig RON TAPPMEYER owned
       by Reading & Bates (A) Pty  Ltd. documented under the laws and  flag of
       Australia with Official  Number 855213 of 11,455 gross  registered tons
       and 3,436 net  registered tons;  (v) the semi-submersible  drilling rig
       J.W.  McLEAN owned by the  Borrower documented under  the laws and flag
       of the  Republic of  Panama with  Patente Number  25384-PEXT of  15,453
       gross registered tons  and 4,636 net registered tons; (vi) the drilling
       tender CHARLEY GRAVES owned by  Reading and Bates Borneo  Drilling Co.,
       Ltd. documented under the laws and flag of the Republic of Panama  with
       Patente  Number 6618-76 CH of 5,829 gross registered tons and 1,748 net
       registered tons;  and (vii)  the jack-up  drilling rig  HARVEY H.  WARD
       owned by HRB Rig Corporation documented under the laws and flag of  the
       United States of  America with Official  Number 642693  of 4,121  gross
       registered  tons  and  3,079  net  registered  tons  and  (viii)  semi-
       submersible drilling Rig 41 owned  by RB Drilling Co.  documented under
       the laws and flag of the Republic of  Panama with Patente Number 22365-
       95 of 10,078 gross tons and 3,024 net registered tons.

       "Permitted Liens"  means: (1)  liens incident  to  expenses of  current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty  (30) days (or being contested in good faith, provided
       such liens are  not in excess  of U.S.$5,000,000.00, and  if in  excess
       thereof, then the Owner  shall, upon the written request of  the Agent,
       provide a bond or other security satisfactory to the  Agent); (2) liens
       for master's and  crew's wages not yet  due and payable; (3)  liens for
       taxes, assessments,  governmental charges, fines  and penalties not  at
       the  time delinquent  (unless being contested  in good  faith, provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then the Owner shall,  upon the written request of the  Agent,
       provide a bond or other security satisfactory to the Agent);  (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause 6  hereof (except that no  lien shall be  deemed
       not covered by insurance  to the extent insurance in force  would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount approved  by  the Agent);  (6)  liens  arising pursuant  to  any
       judgment  or to  an  order of  attachment,  distraint or  similar legal
       process arising in connection with  legal proceedings, but only  if and
       so long as the  execution or other enforcement thereof is  not unstayed
       for more than  30 consecutive  days; (7) any  lien for  the payment  or
       discharge of which  provisions satisfactory to the Agent have been made
       as evidenced by the Agent's written consent to  such lien; (8) any lien
       in favor  of the Banks;  and provided  that Permitted  Liens shall  not
       include any liens  described in subclauses (1) through (7) above unless
       they:  (i)  are subordinate  to  the  lien  of this  Mortgage  or  (ii)
       constitute  a maritime lien  which would  in any  event be  entitled as
       such to priority  over the Mortgage  under the  United States  shipping
       laws  or  other  applicable  laws  relating  to  the  Vessel's  trading
       pattern.    Nothing herein  shall be  deemed a  waiver of  the priority
       preferred lien status of this Mortgage;

       "Protection  and  indemnity risks"  means  the usual  risks  covered by
       protection   and  indemnity   associations   of  international   repute
       including the  proportion not  recoverable in  case of collision  under
       the ordinary running-down clause (unless such is  recoverable under the
       relevant hull and machinery coverage);

       "Required Banks"  shall have the meaning for such  term as set forth in
       the Credit Agreement;

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or other compulsory acquisition  of the Vessel otherwise  than by
       requisition for hire;

       "Second Amendment" means the Second  Amendment dated as of  August ___,
       1996 among  Holdings, the  Borrower, the  Banks, the  Co-Agent and  the
       Mortgagee, as agent first referred to in Recital (D) hereto:

       "Secured Creditors" shall mean the  Banks, the Letter of  Credit Issuer
       and the Agent under and as defined in the Credit Agreement;

       "Security Documents" shall have  the same meaning for such  term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or other security  interest or arrangement of  any kind
       whatsoever;

       "Subsidiary Assumption  Agreement"  means  the  agreement  pursuant  to
       which the  Owner has  agreed  to become  a party  to, inter  alia,  the
       Subsidiary Guaranty.

       "Subsidiary Guaranty" means  the Guaranty in favor of the Agent and the
       Banks dated  as of April 30, 1996 as  amended, restated or supplemented
       from time to  time to which the  Owner has become a  signatory pursuant
       to the Subsidiary  Assumption Agreement as first referred to in Recital
       (F) hereto; 

       "Taxes" shall  have the same meaning for such term  as set forth in the
       Credit Agreement;

       "Total Commitment" shall  have the  same meaning for  such term as  set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive,  arranged, agreed, or
       compromised total loss of the Vessel; (b)  the requisition for title or
       other  compulsory  acquisition or  forfeiture of  the  Vessel otherwise
       than  by requisition  for  hire;  (c)  the  capture,  seizure,  arrest,
       detention  or  confiscation  of the  Vessel  by  any  government  or by
       persons acting or purporting to act on behalf  of any government unless
       the Vessel be released  from such capture, seizure, arrest or detention
       within ninety (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid Drawing"  shall have  the  same meaning  for such  term as  set
       forth in the Credit Agreement;

       "Vessel" means the vessel in Recital (A)  hereto and includes any share
       or interest therein  and her engines, machinery, boats, tackle, outfit,
       spare   gear,  fuel,   consumable  or  other   stores,  belongings  and
       appurtenances whether  on board  or  ashore and  whether  now owned  or
       hereafter acquired (but excluding therefrom any  leased equipment owned
       by third parties);

       "War Risks" includes the risk  of mines and all risks excluded from the
       standard form  of English  marine  policy by  the free  of capture  and
       seizure clause.

2.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall bear the same meanings when used in this Mortgage.

2.03   In this Mortgage:

       (a)   Clause  headings are inserted for  convenience only and shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified,  all references  to  Clauses are  to  clauses of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references    to   persons    include   bodies    corporate   and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

3.     MORTGAGE

3.01   In order to secure the Obligations the  Owner has granted, conveyed and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the  Mortgagee,  its successors  and  assigns, in  accordance  with the
       provisions  of Chapter  V,  Title IV  of  Book Second  of  the Code  of
       Commerce  and  pertinent  provisions  of  the   Civil  Code  and  other
       legislation of the  Republic of Panama,  the whole of  the Vessel,  the
       detailed description of which is as follows:

             oil  production  vessel  SEILLEAN;  gross  tonnage  approximately
             50,928;  net tonnage approximately  15,278; length overall 236.47
             meters,  breadth 37.00 meters; depth  19.80 meters; built in 1986
             by Harland & Wolff PLC in  Belfast, Northern Ireland; radio  call
             letters _______; 

       TO  HAVE AND  TO HOLD the  same unto the  Mortgagee, its successors and
       assigns forever, upon  the terms herein  set forth for  the enforcement
       of the Obligations.

       PROVIDED  ONLY and the condition of these  presents is such that if the
       Owner or its successors and assigns shall pay or  cause to be repaid to
       the Secured Creditors and  their respective  successors or assigns  the
       Obligations as  and  when the  same  shall become  due  and payable  in
       accordance  with the  terms  of the  Credit  Agreement, the  Subsidiary
       Guaranty  and  this  Mortgage and  the  Owner  and  its  successors and
       assigns  shall  observe  and  comply  with  the  covenants,  terms  and
       conditions  contained  in the  Subsidiary Guaranty  and  this Mortgage,
       expressed or implied  to be performed, observed or complied with by and
       on the  part of the  Owner and its successors  and assigns,  then these
       presents and the  rights hereunder shall  cease, determine and  be void
       and,  in such  event,  the Mortgagee  agrees  to  furnish, execute  and
       record, at the expense  of the Owner, all  such documents as the  Owner
       may   reasonably require  to discharge this  Mortgage, otherwise  to be
       and remain in full force and effect.

       Notwithstanding  anything to  the contrary  herein  it is  not intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of  this Mortgage  and that  if  any provision  or part  thereof herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by  it in  relation to  the Vessel  and none  of the  Secured Creditors
       shall  be  under  any obligation  of  any  kind  whatsoever  in respect
       thereof or be  under any liability whatsoever  in event of  any failure
       by the Owner to perform its obligations in respect thereof.

3.03   This  Mortgage, when  it shall  have been  duly executed  and signed on
       behalf of  the parties,  shall  be provisionally  recorded through  the
       Panamanian  Consulate at  London, England  and thereafter  within three
       months permanently recorded in the Public Registry in Panama.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors   for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or  other moneys  as are  stated in  this Mortgage to  be
             payable by  the Owner  to or  recoverable from  the Owner  by the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other  moneys referred to
             in Clause 4.01(a) from  the date  on which the  relevant expense,
             claim,  liability, loss, cost, duty,  fee, charge  or other money
             is  paid by  any  Secured Creditor  (both  before  and after  any
             relevant judgment) at the Default Rate; and

       (c)   to pay and perform its obligations which may be  or become due or
             owing to  any Secured Creditor,  as the case  may be,  under this
             Mortgage  and the  Subsidiary Guaranty  at the  times and  in the
             manner specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Mortgagee  as a  continuing security for  the performance  of the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the security so created shall be in addition to  and shall not in
             any way be prejudiced  or affected by  any of the other  Security
             Documents;

       (c)   the  Mortgagee shall  not  have  to  enforce  any  of  the  other
             Security Documents before enforcing the security  created by this
             Mortgage;

       (d)   no failure or  delay on the part  of the Mortgagee  in exercising
             any right, power, privilege  or remedy hereunder and no course of
             dealing  between  Owner  and   Mortgagee  (in  its  capacity   as
             mortgagee or in its capacity as agent) shall operate as  a waiver
             thereof; nor shall any single or  partial exercise of any  right,
             power,  privilege  or  remedy  hereunder preclude  any  other  or
             further  exercise thereof  or the  exercise  of any  other right,
             power or  privilege hereunder.   The rights  and remedies  herein
             expressly  provided  are  cumulative  and not  exclusive  of  any
             rights  or  remedies  which  the Mortgagee  (in  its  capacity as
             mortgagee or in its capacity as agent) would otherwise have.   No
             notice to or demand  on the Owner in  any case shall entitle  the
             Owner to  any other or  further notice  or demand  in similar  or
             other circumstances or constitute a waiver  of the rights of  the
             Mortgagee  (in its capacity  as mortgagee or  in its  capacity as
             agent)  to  any other  or  further  action  in any  circumstances
             without notice or demand; and

       (e)   any  waiver by the Mortgagee of any terms of this Mortgage or any
             consent given by the  Mortgagee under this Mortgage shall only be
             effective if given in writing  and then only for the purpose  and
             upon the terms for which it is given.

5.02   Any settlement  or discharge under this  Mortgage between the Mortgagee
       and the Owner  shall be conditional upon no security  or payment to the
       Secured  Parties or  any of  them by  the Credit  Parties or  any other
       person being avoided or set-aside or ordered to be  refunded or reduced
       by  virtue  of  any  provision  or enactment  relating  to  bankruptcy,
       insolvency, administration or  liquidation for the time  being in force
       and,  if  such  condition is  not  satisfied,  the  Mortgagee  shall be
       entitled  to  recover from  the  Owner  on  demand the  value  of  such
       security  or the  amount of any  such payment as  if such settlement or
       discharge had not occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to  impair, affect or  discharge such rights and  security, in whole or
       in part, including  without limitation, and whether or  not known to or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:

       (a)   any waiver granted to or composition  with the Credit Parties  or
             any other person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities against  any  of  the  Credit  Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any  amendment  or  supplement  to  the   Credit  Agreement,  the
             Subsidiary  Guaranty, any of  the other  Credit Documents  or any
             other document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or  frustration   of   any
             obligations  of the Credit  Party or any  other person  under the
             Credit  Agreement,  the Subsidiary  Guaranty,  any  of the  other
             Credit Documents or any other document or security.

6.     INSURANCE

6.01   The Owner covenants  with the Mortgagee throughout the  Credit Facility
       Period that:

       (a)   The  Owner shall, at  its own  expense, when and  so long  as any
             Obligation  remains outstanding,  insure the Vessel  and keep her
             insured, or cause the  Vessel to be  insured, in lawful money  of
             the United States,  in such  amounts, for  such risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             Protection  and Indemnity  Risks,  pollution liability,  and  War
             Risks), in such  form (including without limitation, the  form of
             the loss  payable clause  and the designation  of named assureds)
             and  with such  first  class  insurance companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably satisfactory to  the Mortgagee.  With respect  to hull
             and machinery/increased value insurance, including war risk,  the
             Owner shall insure the Vessel and keep her insured, or  cause the
             Vessel  to be insured, for an amount which is at least the agreed
             value of the  Vessel, and when such amount is aggregated with the
             total amount of such insurance coverage  on the Other Rigs,  such
             aggregate amount shall be  at least 110% of the Total Commitment.
             Such insurance shall  cover marine and  war risk perils,  on hull
             and machinery, with per occurrence  deductibles not in excess  of
             US$500,000 (such deductibles  not to apply  in the case  of Total
             Loss  of the  Vessel), and  shall be  maintained in  the broadest
             forms  available  in  the  American,   British  and  Scandinavian
             insurance  markets or  in such other  major international markets
             acceptable   to  the   Mortgagee.    The   Owner  shall  maintain
             protection   and   indemnity   insurance,   including   war  risk
             protection and indemnity coverage and coverage against  pollution
             liability, in an amount  not less  than US$100,000,000 (or,  with
             respect to pollution liability  coverage, such greater amount  as
             may be  at least equal  from time  to time  to the limitation  of
             liability  amount  applicable  to   the  Vessel  under  the   Oil
             Pollution  Act  1990   or  other  Environmental  Laws),   through
             underwriters  or associations  acceptable to  the Mortgagee.   In
             addition,  the Owner shall,  at its own  expense, furnish  to the
             Mortgagee   a  mortgagee's   single  interest   policy  providing
             coverage  which, when  aggregated  with the  mortgagee's interest
             insurance furnished  to the  Mortgagee  in respect  of the  Other
             Rigs, shall be in an  amount equal to at least 110% of  the Total
             Commitment  (or in  lieu of  such mortgagee's  interest insurance
             Owner  shall  cause   the  hull  and   machinery/increased  value
             insurance to  be endorsed to  afford breach of warranty  coverage
             for the  benefit of  the Mortgagee).   Such  mortgagee's interest
             insurance and any additional  insurance policies for the  benefit
             of the  Mortgagee  shall  be  maintained  in  the  broadest  form
             available  in the  American, British and  Scandinavian markets or
             other  major international  markets acceptable  to the  Mortgagee
             through  underwriters acceptable  to the  Mortgagee.   The Vessel
             shall  not operate in  or proceed into any  area then excluded by
             trading  warranties  under  its  marine  or   war  risk  policies
             (including  protection  and  indemnity)  without  satisfying  the
             conditions of  the relevant  policies evidence of  which shall be
             furnished to the Mortgagee.

       (b)   The  policy  or   policies  of  insurance  shall  be   issued  by
             responsible underwriters reasonably acceptable to  the Mortgagee,
             shall   contain  conditions,  terms,  stipulations  and  insuring
             covenants satisfactory  to the Mortgagee,  and shall  be kept  in
             full  force and  effect by  the  Owner so  long  as the  Security
             Documents and  the  Secured  Indebtedness shall  be  outstanding.
             All such policies, binders and other  interim insurance contracts
             shall be executed and issued in the name of  the Owner and shall,
             to the extent required herein,  provide that the Mortgagee  shall
             be the  loss payee for  distribution by it  to itself, the  Banks
             and the Owner  as their interests  may appear, and  shall provide
             for at least ten days'  prior notice to be given to the Mortgagee
             by the underwriters or  association in the event  of cancellation
             or  the failure  of the  Owner to pay  any premium  or call which
             would suspend  coverage under  the  policy or  the  payment of  a
             claim thereunder.  The Mortgagee and the  Banks shall be named as
             co-assureds  on all  such policies  and insurance  contracts, but
             without liability of the  Mortgagee, or the Banks for premiums or
             calls.  Complete  certified copies of all such  policies, binders
             and other interim insurance  contracts shall be delivered to  the
             Mortgagee.  Originals shall  also be provided upon the request of
             the  Mortgagee.    The  Owner  shall  furnish  to  the  Mortgagee
             annually a detailed report signed by  a firm of marine  insurance
             brokers  satisfactory  to  the  Mortgagee  as  to  the  insurance
             maintained in  respect of the Vessel,  as to their  opinion as to
             the adequacy thereof and  as to compliance with the provisions of
             this Clause 6.01.

             Unless  otherwise  required by  the Mortgagee,  by notice  to the
             underwriters, although the following insurance is  payable to the
             Mortgagee, (i) any  loss under any  insurance on the  Vessel with
             respect to Protection  and Indemnity Risks may  be paid  directly
             to  the Owner  to reimburse  it for  any loss, damage  or expense
             incurred  by it and covered by such insurance or to the person to
             whom any liability covered  by such  insurance has been  incurred
             and (ii) in the  case of any loss  (other than a loss covered  by
             (i) above  or by  the  next following  paragraph  of this  Clause
             6.01(b))  under  any  insurance   with  respect  to  the   Vessel
             involving  any damage  to the  Vessel, the  underwriters may  pay
             direct for the repair, salvage or  other charges involved or,  if
             the Owner shall have first fully repaired the damage or  paid the
             salvage or  other charges,  may pay  the  Owner as  reimbursement
             therefor;  provided,  however, that  if  such  damage involves  a
             before deductible loss in excess of  US$1,000,000.00 (One Million
             U.S.  Dollars),  the underwriters  shall  not  make such  payment
             without  first  obtaining  the  written consent  thereto  of  the
             Mortgagee  (which consent  shall not  be  unreasonably withheld).
             Any  loss  covered  by  this  paragraph  which  is  paid  to  the
             Mortgagee but which might  have been paid, in accordance with the
             provisions of this paragraph,  directly to  the Owner or  others,
             shall  be paid by the Mortgagee to,  or as directed by, the Owner
             and  all other  payments to  the Mortgagee  of losses  covered by
             this  paragraph shall  be applied by  the Mortgagee in accordance
             with Clause 10.01.

             In  the event of  a Total Loss,  all insurance  payments therefor
             shall  be paid to the Mortgagee.   The Owner shall not declare or
             agree with  the underwriters  that  the Vessel  is  a Total  Loss
             without the prior written consent of the Mortgagee.

       (c)   In the event  of a Total Loss of the  Vessel, the Mortgagee shall
             retain out of the  insurance payments received on account of such
             loss  any sum  or  sums that  shall  be or  become  owing to  the
             Secured  Creditors under  the Security Documents,  whether or not
             the  same shall be  then due and  payable, together  with accrued
             interest and the cost, if any,  of collecting the insurance,  and
             pay the balance as provided in Clause 10.

       (d)   The Owner shall comply with and satisfy all of the provisions  of
             any applicable law, regulation, proclamation  or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the  Vessel  with  respect  to  the  carriage  of  passengers  or
             pollution,  and will  maintain, or  cause  to be  maintained, all
             certificates  or  other evidence  of financial  responsibility as
             may  be required  by any  such law,  regulation, proclamation  or
             order  with respect to the trade in which the Vessel from time to
             time is engaged.

       (e)   The  Owner shall renew all such  insurances as they expire and so
             as  to  insure  that  there  is  no  gap  in coverage,  keep  the
             Mortgagee advised of  the progress  of such  renewals, and  shall
             provide evidence of such renewal in  writing to the Mortgagee  as
             and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or other  sums  payable  in  respect of  all  such
             insurances and  produce all relevant receipts when so required by
             the Mortgagee.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The Owner shall not employ the Vessel or suffer  the Vessel to be
             employed  otherwise than  in  conformity with  the  terms of  the
             instruments  of  insurance  aforesaid  relative  to   the  Vessel
             (including any warranties, express  or implied, therein)  without
             first obtaining  the consent to  such employment of the  insurers
             and complying  with  such requirements  as  to extra  premium  or
             otherwise as the insurers may prescribe.

7.     Vessel COVENANTS

7.01   The  Owner covenants  with  the Mortgagee  that  throughout the  Credit
       Facility Period the Owner will:

       (a)   keep the  Vessel documented  in  its name  as  a Panamanian  flag
             vessel  and  do  or   allow  to  be  done  nothing  whereby  such
             documentation may be forfeited or imperilled;

       (b)   not  without the  previous consent  in writing  of the  Mortgagee
             except as otherwise contemplated by the  Credit Agreement, change
             the name of  the Vessel  or make any  modification to the  Vessel
             which would materially alter  the structure, type or  performance
             characteristics of the Vessel  and which would materially  reduce
             the value of the Vessel;

       (c)   keep  the  Vessel  in  a  good  and  efficient  state  of  repair
             consistent  with   first-class   ship-ownership  and   management
             practice employed by owners  of drilling rigs of similar size and
             type and so as to  maintain her present class (namely 100  A1 Oil
             (Processing) Tanker DP  (AA) LMC,  UMS, 1GS) at  Lloyd's Register
             free of recommendations and  qualifications and change of  class,
             save  those approved  in writing  by the  Mortgagee and  so as to
             comply with all applicable laws, treaties  and conventions of the
             Republic of Panama and other applicable  jurisdictions, and rules
             and regulations issued thereunder,  and have on board as and when
             required    thereby   valid   certificates   showing   compliance
             therewith;

       (d)   procure that all repairs to or  replacement of any damaged,  worn
             or  lost parts  or  equipment in  such  manner  (both as  regards
             workmanship  and  quality  of  materials) as  to  not  materially
             diminish the value of the  Vessel and not to remove any  material
             part of,  or item of  equipment owned by the  Owner installed on,
             the Vessel unless (i)  the part or  item so removed is  forthwith
             replaced  by  a  suitable part  or  item  which  is  in the  same
             condition as or better condition than  the part or item  removed,
             is  free from any Security Interest  (other than Permitted Liens)
             in favor  of any person other  than the Mortgagee and  becomes on
             installation on the Vessel  the property of the Owner and subject
             to the security constituted  by this Mortgage or (ii) the removal
             will not materially diminish the value of the Vessel;

       (e)   submit the  Vessel to such periodical or other  surveys as may be
             required  for  classification  purposes  and if  so  required  to
             supply to the  Mortgagee copies of  all survey reports  issued in
             respect thereof;

       (f)   permit  the  Mortgagee  by  independent surveyors  to  board  the
             Vessel  at all reasonable  times and  upon reasonable  notice for
             the  purpose of inspecting  her condition or  for the  purpose of
             satisfying themselves in regard  to proposed or executed  repairs
             and  to  afford  all  proper  facilities  for  such  inspections,
             provided that unless an  Event of Default shall have occurred and
             be continuing,  the cost of any such inspection  shall be for the
             account of the Mortgagee;

       (g)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Vessel  and all  tolls,  dues,  taxes,
             assessments, governmental charges,  fines and penalties  lawfully
             charged on or  in respect  of the Vessel  and all other  expenses
             whatsoever in respect of  the Vessel and  in the event of  arrest
             of the Vessel pursuant to  legal process, or in the event  of her
             detention in exercise or purported exercise  of any such lien  or
             claim as aforesaid, procure the release  of the Vessel from  such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (h)   not employ  the Vessel or  allow her employment  in any  trade or
             business  which  is  unlawful  under  the  laws of  any  relevant
             jurisdiction or  in carrying illicit  or prohibited  goods or  in
             any manner whatsoever which  can reasonably be expected to render
             her liable  to destruction,  seizure or  confiscation and in  the
             event  of hostilities in  any part of  the world  (whether war be
             declared or not) not employ the  Vessel or suffer her  employment
             in carrying  any contraband  goods or  to enter or  trade to  any
             zone  which is declared a  war zone  by any government  or by the
             War  Risks insurers of  the Vessel unless  there shall  have been
             effected by  the Owner (at its  expense) such special, additional
             or  modified  insurance cover  as  the  Mortgagee may  reasonably
             require;

       (i)   promptly furnish to the  Mortgagee all such information as it may
             from time to  time require regarding the  Vessel, her employment,
             position  and  engagements,   particulars  of  all   towages  and
             salvages and,  upon the Mortgagee's request in writing, copies of
             all charters and other  contracts for her employment or otherwise
             howsoever concerning her;

       (j)   notify  the Mortgagee forthwith  by telecopy thereafter confirmed
             by letter of:

             (i)     any casualty to the Vessel which is  or is likely to be a
                     Major Casualty; and

             (ii)    any  occurrence  in  consequence whereof  the  Vessel has
                     become or is, by the passing of time or otherwise, likely
                     to become a Total Loss; and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by any  competent  authority
                     which is not complied with; and

             (iv)    any arrest  of the  Vessel or the  exercise or  purported
                     exercise of  any lien on the Vessel or any requisition of
                     the Vessel for hire; and

             (v)     any intended dry docking of  the Vessel, as to which  the
                     Owner  shall  give the  Mortgagee  30 days  prior notice,
                     provided, that in the event  of any emergency dry docking
                     of the  Vessel, the  Owner shall  immediately notify  the
                     Mortgagee; and

             (vi)    any intended deactivation or lay-up  of the Vessel (other
                     than for normal  periods of inactivity  between contracts
                     for the Vessel  during which  periods the Vessel  remains
                     manned) and obtain the Mortgagee's prior written consent;

       (k)   keep  proper books of account in respect of the Vessel and as and
             when  the  Mortgagee may  so reasonably  require make  such books
             available for  inspection on behalf of  the Mortgagee and furnish
             satisfactory  evidence  that the  wages  and  allotments and  the
             insurance  of the master  and crew are  being regularly  paid and
             that all deductions  from crew's wages  in respect of  tax and/or
             social  security liability  are being properly  accounted for and
             that the master has no claim  for disbursements other than  those
             incurred by him in  the ordinary course of trading on  the voyage
             then in progress;

       (l)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement which apply  to the Vessel and the Owner, and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (m)   not without  the previous  consent  in writing  of the  Mortgagee
             (such consent  not to be unreasonably  withheld), put  the Vessel
             into the possession of any  person for the purpose of  work being
             done  upon her  in an amount  exceeding or  likely to  exceed Two
             Million Five Hundred United States Dollars  (US$2,500,000.00) (or
             the equivalent  in  any other  currency) unless  (i) such  person
             shall   first  have  given   to  the   Mortgagee  and   in  terms
             satisfactory to  it a  written undertaking  not  to exercise  any
             lien on  the Vessel for  the cost  of such  work or otherwise  or
             (ii) the  cost of such work shall be  fully covered by applicable
             insurance;

       (n)   comply with  and satisfy  all the provisions  of applicable  laws
             and  regulations  of  the Republic  of  Panama,  as  at  any time
             amended, in order  to establish and  maintain this Mortgage  as a
             first  priority  naval mortgage  thereunder upon  the  Vessel and
             upon all  renewals, improvements and replacements  made in  or to
             the same,  and promptly to furnish to  the Mortgagee from time to
             time   such  proofs   as  the  Mortgagee   may  request  for  its
             satisfaction with respect  to the  compliance by  the Owner  with
             the  provisions   of  this  sub-clause,   including,  appropriate
             certificates  of the  Public Registry showing  that this Mortgage
             has  been duly registered  and filed and is  a first and absolute
             lien on the Vessel;

       (o)   place, and  use due  diligence to  retain,  a properly  certified
             copy of  this Mortgage on  board the Vessel  with her papers  and
             cause  such certified copy  of this Mortgage  to be  exhibited to
             any and all persons having business  with the Vessel which  might
             give  rise to any lien thereon other than a lien for crew's wages
             and salvage and to  any representative of the Mortgagee on demand
             and  to place and  keep prominently displayed  in the  chart room
             and in the master's  cabin of the Vessel a framed  printed notice
             in plain  type  in English  of such  size that  the paragraph  of
             reading matter shall  cover a space  not less than 6  inches wide
             and 9 inches high reading as follows:

                                               "NOTICE OF MORTGAGE

                     This Vessel  is subject  to an  Indenture of First  Naval
             Mortgage in  favor of CHRISTIANIA  BANK OG KREDITKASSE, as  Agent
             for the Banks  defined in said  Mortgage, in conformity  with the
             provisions of Chapter V, Title  IV of Book Second of the  Code of
             Commerce, and  the pertinent  provisions of  the  Civil Code  and
             other legislation of the Republic of Panama.  Under  the terms of
             said  Mortgage neither  the owner,  any charterer,  the Master of
             the  Vessel nor any other  person shall have  the right, power or
             authority  to create,  incur  or permit  to  be  placed upon  the
             Vessel any other  lien whatsoever other than  for current  crew's
             wages and salvage  and Permitted Liens  (as that term  is defined
             in said Mortgage)."

       (p)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental Approvals relating to the Vessel,  its operation or
             management and the business of the Owner from time to time;

       (q)   notify the Mortgagee forthwith upon:

             (i)     any  Environmental   Claim  which  could   reasonably  be
                     expected to  result in  damages in  excess of  US$200,000
                     being  or  made  against  the   Owner,  or  otherwise  in
                     connection with the Vessel; or

             (ii)    any  Environmental  Incident  occurring,  and  keep   the
                     Mortgagee advised, in  writing on such regular  basis and
                     in  such detail  as the Mortgagee  shall require,  of the
                     Owner's   response  to   such   Environmental  Claim   or
                     Environmental Incident.

       (r)   not  sell,  mortgage  or  transfer  the  Vessel  (other  than  as
             permitted  by the  Credit Agreement) without  the written consent
             of  the Mortgagee  having  first  been  obtained,  and  any  such
             written consent to any  one such sale, mortgage or transfer shall
             not be construed  to be a  waiver of this provision  with respect
             to any subsequent proposed  sale, mortgage or transfer.  Any such
             sale, mortgage or transfer  shall be subject to the provisions of
             this  Mortgage and  the lien  it creates.   The  Owner shall  not
             charter the Vessel  to, or permit the  Vessel to serve under  any
             contract with, a  person included  within the  definition of  (i)
             "national"  of  a  "designated  foreign  country," or  "specially
             designated  national" of  a "designated foreign  country," in the
             Foreign  Assets Control  Regulations or the  Cuban Assets Control
             Regulations of the United  States Treasury Department, 31  C.F.R.
             Parts  500 and 515, in each  case as amended, (ii) "Government of
             Libya", "entity  of the Government of  Libya" or  "Libyan entity"
             in  the  Libyan  Sanctions  Regulations  of   the  United  States
             Treasury  Department, 31  C.F.R. Part  550, as  amended, or (iii)
             "Government  of Iraq",  "entity  of the  Government  of Iraq"  or
             "Iraqi Government entity" in the Iraqi  Sanctions Regulations, 56
             Fed. Reg. 2112 (1991)  to be codified at  31 C.F.R. Part 575,  as
             amended,  all within the  meaning of said  Regulations or  of any
             regulations,  interpretations or  rulings  issued thereunder,  or
             sail in Cuban waters or  enter any Cuban port for any  purpose or
             engage  in any  transaction that violates  any provision  of said
             Regulations  or  that  violates  any  provision  of  the  Iranian
             Transactions  Regulations, 31  C.F.R. Part  560, as  amended, the
             Foreign  Funds  Control  Regulations,  31  C.F.R.  Part  520,  as
             amended,  the  Transaction Control  Regulations,  31  C.F.R. Part
             505, as amended, the  Haitian Transaction Regulations, 31  C.F.R.
             Part 580, as amended, the Foreign  Assets Control Regulations, 31
             C.F.R.  Part  500,  as  amended, or  Executive  Orders  12810 and
             12831; if  such transaction  or  violation would  (i) expose  the
             Mortgagee  to  any penalty,  sanction  or  investigation or  (ii)
             jeopardize  the lien  created by  this Mortgage  or (iii)  have a
             material  adverse effect  on the  Owner or  the operation  of the
             Vessel;

       (s)   shall  not cause  or  permit the  Vessel to  be  operated in  any
             manner contrary to  law (except where  the failure to  operate in
             compliance with any law  would not have a material adverse effect
             on the Owner,  the Vessel or  the lien of  this Mortgage),  shall
             not abandon the Vessel in  a foreign port and shall not engage in
             any unlawful  trade or  violate any law  or carry any  cargo that
             shall expose the Vessel to forfeiture or capture.

8.     PROTECTION OF SECURITY

8.01   The Mortgagee shall  without prejudice to  its other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at any time and as often as may  be necessary (but unless an
       Event of  Default shall  have  occurred and  be  continuing with  prior
       written notice to the Owner) to take  any such action as it may  in the
       reasonable  exercise of  its discretion  think fit  for the  purpose of
       protecting or  maintaining the  security created  by this Mortgage  and
       the other Credit Documents (including, without  limitation, such action
       as  is  referred  to  in  Clause 8.02)  and  each  and  every  expense,
       liability,  or  loss (including,  without limitation,  reasonable legal
       fees) so incurred by  the Secured Creditors in or about  the protection
       or  maintenance  of the  said security  together with  interest payable
       thereon  under Clause 4.01(b) shall be repayable  to it by the Owner on
       demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the  Owner does  not comply in  any material respect  with the
             provisions  of Clause 6  or any  of them  the Mortgagee  shall be
             entitled  (but not bound) to  effect or to  replace and renew and
             thereafter to maintain the Insurances in  such manner it, in  its
             discretion,  may think  fit  and to  require  that all  policies,
             contracts  and   other  records   relating   to  the   Insurances
             (including details of  any correspondence concerning  outstanding
             claims) be forthwith  delivered to such brokers as  the Mortgagee
             may  nominate  and,  upon  the  direction  of  the  Mortgagee  to
             collect, recover, compromise and  give a  good discharge for  all
             claims  then  outstanding   or  thereafter   arising  under   the
             Insurances or  any  of them  and to  take over  or institute  (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection   therewith   as  the   Mortgagee   in  its   absolute
             discretion, may think fit  and to permit the brokers through whom
             the collection  or  recovery  is effected  to  charge  the  usual
             brokerage therefor;

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  or 7.01(f)  the  Mortgagee shall  be  entitled (but  not
             bound) to  arrange for the carrying out of such repairs to and/or
             surveys of the Vessel as it deems expedient or necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) the Mortgagee  shall be entitled  (but not bound)  to pay
             and  discharge all  such debts, damages  and liabilities  and all
             such tolls,  dues, taxes, assessments,  charges, fines, penalties
             and other outgoings as are therein  mentioned and/or to take  any
             such measures as it  deems expedient or necessary for the purpose
             of securing the release of the Vessel.

9.     ENFORCEABILITY AND MORTGAGEE'S POWERS

9.01   Upon  the happening  of any of  the Events of  Default specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to the effect that an Event  of Default
       has occurred (and whether prior to or after the  Mortgagee or the Banks
       having  served on  the  Owner any  such  notice as  is  referred to  in
       Section  9 of the  Credit Agreement) the  security constituted  by this
       Mortgage shall become immediately  enforceable and the Mortgagee  shall
       be  entitled, as  and  when it  may  see  fit, to  put  into force  and
       exercise all or any  of the powers possessed by it as  mortgagee of the
       Vessel or otherwise and in particular:

       (a)   to  exercise  all the  rights  and  remedies in  foreclosure  and
             otherwise  given to  mortgagees by  the laws  of the  Republic of
             Panama or other applicable laws;

       (b)   to   take   possession  of   the  Vessel   whether   actually  or
             constructively  and/or otherwise  to take  control of  the Vessel
             wherever  the Vessel  may be  and cause  the Owner  or any  other
             person  in  possession of  the  Vessel forthwith  upon  demand to
             surrender  the same  to the Mortgagee  without legal  process and
             without  liability of  the Mortgagee  for any  losses or  damages
             incurred  thereby and  without having  to render  accounts to the
             Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Mortgagee;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure that the Mortgagee collect, recover,  compromise and give
             good discharge for any and  all moneys or claims for  moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection or recovery is effected to  charge the usual brokerage
             therefor;

       (e)   to take over  or institute (if  necessary using  the name of  the
             Owner) all such  proceedings in connection with  the Vessel,  the
             Insurances, or any Requisition  Compensation as the Mortgagee  in
             its  absolute discretion  thinks fit and  to discharge, compound,
             release or compromise claims  against the Owner in respect of the
             Vessel which have given  or may give rise  to any charge or  lien
             on the Vessel or which are  or may be enforceable by  proceedings
             against the Vessel;

       (f)   to sell  the Vessel  or any share  therein with or  without prior
             notice to  the Owner free  from any claim  of or by  the Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or  all of the purchase price  be deferred) as the Mortgagee
             in its absolute discretion  may determine with power to  postpone
             any such  sale, without being answerable  for any loss occasioned
             by  such  sale or  resulting  from  postponement thereof,  and/or
             itself to purchase the  Vessel at any such public auction  and to
             set  off  the  purchase price  against  all  or any  part  of the
             Obligations,  subject  to  notice  of  sale being  given  by  the
             Mortgagee to the  Owner and other  mortgagees of record,  if any,
             by airmail,  postage  pre-paid  and  by  publication  once  in  a
             newspaper of general circulation in the  City of Panama, Republic
             of Panama, not less than twenty (20) calendar  days in advance of
             the sale, to satisfy  the requirement of notice of sale contained
             in Article 1527  of the  Panama Code  of Commerce.   Such  notice
             shall be necessary only in respect of the initial date of sale;

       (g)   to  manage,  insure,  maintain  and  repair  the  Vessel  and  to
             charter,  employ, sail or lay up  the Vessel in such manner, upon
             such terms and  for such period as the  Mortgagee in its absolute
             discretion  deems expedient  and for  the purposes  aforesaid the
             Mortgagee shall be entitled  to do all acts and things incidental
             or  conducive  thereto  and  in  particular  to enter  into  such
             arrangements   respecting   the  Vessel,   and   the   insurance,
             management, maintenance,  repair, classification,  chartering and
             employment  of the Vessel,  in all respects  as if  the Mortgagee
             were the owner  of the Vessel  and without being  responsible for
             any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as  may be  incurred  by the  Mortgagee in  or  about the
             exercise   of   the  power   vested   in   the  Mortgagee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or loss  incurred by the Mortgagee in or about
             or  incidental to  the  exercise  by  it  of any  of  the  powers
             aforesaid.

9.02   The  Mortgagee shall  not be  obliged  to make  any enquiry  as to  the
       nature  or sufficiency  of  any  payment  received  by  it  under  this
       Mortgage or to make  any claim, take any  action or enforce any  rights
       and  benefits assigned  to the Mortgagee  by this Mortgage  or to which
       the Mortgagee may at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates  and advisers  shall be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection with  the  exercise or  purported  exercise of  any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The  Mortgagee shall  not by  reason of  the taking  possession of  the
       Vessel be liable  to account as mortgagee-in-possession or for anything
       except actual  receipts or be  liable for any loss  upon realization or
       for any default or  omission for which a mortgagee-in-possession  might
       be liable.

9.05   Upon any sale of the Vessel  or any share therein by the Mortgagee  the
       purchaser shall not be bound to see or enquire  whether the Mortgagee's
       power of sale has  arisen in the manner  provided in this Mortgage  and
       the sale shall  be deemed to be  within the power of  the Mortgagee and
       the receipt of the Mortgagee for  the purchase money shall  effectively
       discharge the purchaser who  shall not be concerned with the  manner of
       application  of  the proceeds  of  sale  or be  in  any way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All moneys  received by  the Mortgagee  or any  Secured Creditor,
             including, without limitation,  in respect of sale  of the Vessel
             or  any   part  thereof,  in  respect   of  recovery   under  the
             Insurances, or in respect  of Requisition Compensation, shall  be
             applied in the following manner:

             (i)     first,  to the payment of all amounts owing the Mortgagee
                     of the  type  described  in clauses  (ii)  and  (iii)  of
                     Recital (F);

             (ii)    second, to the extent moneys remain after the application
                     pursuant to  the preceding clause (i), an amount equal to
                     the outstanding Obligations shall be  paid to the Secured
                     Creditors as  provided  in  Clause  10.01(c),  with  each
                     Secured  Creditor  receiving  an  amount  equal  to  such
                     Obligations  held  by   it  or,   if  the  proceeds   are
                     insufficient to pay in full all such Obligations, its Pro
                     Rata Share (as defined below)  of the amount remaining to
                     be distributed; and

             (iii)   third, to the extent moneys  remain after the application
                     pursuant  to  the  preceding clauses  (i)  and  (ii), and
                     following the termination  of this  Mortgage pursuant  to
                     Clause 3.01, any surplus then remaining shall  be paid to
                     the Owner, subject, however, to the rights of the  holder
                     of any  then existing  Lien of  which  the Mortgagee  has
                     actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then  unpaid amount of such Obligations owing  to or held by such
             Secured  Creditor  and  the  denominator  of  which  is the  then
             outstanding amount  of all  such Obligations.    For purposes  of
             determining  the  amount payable  to each  Secured  Creditor, the
             Mortgagee shall be entitled  to request each Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed  to it  and  shall be  entitled  to reply  upon  the amounts
             stated therein in making such distribution.

       (c)   All  payments required to be  made to Secured Creditors hereunder
             shall be made  to the Agent  under the  Credit Agreement for  the
             account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01, the  Mortgagee shall be entitled to reply upon
             (i)  the Agent under  the Credit Agreement  and (ii)  the Secured
             Creditors  for a determination (which the  Agent and each Secured
             Creditor, by  their acceptance of  the benefits of this  Mortgage
             shall be obligated to provide upon  request of the Mortgagee)  of
             the  outstanding  Obligations  owed  to  the  Secured  Creditors.
             Unless  it has  actual  knowledge (including  by  way of  written
             notice from a Secured  Creditor) to the contrary, the Agent under
             the Credit Agreement, in  furnishing information pursuant to  the
             preceding  sentence,  and the  Mortgagee,  in  acting  hereunder,
             shall be entitled  to assume that  (x) no obligations  other than
             principal, interest and regularly  accruing fees are owing to any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The  Owner shall execute and do all such assurances, acts and things as
       the Mortgagee in its absolute discretion may require for:

       (a)   perfecting or  protecting the security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting any of the  rights of the Mortgagee  and
             the Agent under this Mortgage; or

       (c)   ensuring that the security  constituted by this Mortgage  and the
             covenants and obligations of  the Owner under this Mortgage shall
             inure to the benefit  of any transferee, successor or assignee of
             the Mortgagee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Mortgagee under this Mortgage,

       in any  such case, forthwith  upon demand by the  Mortgagee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner,  by way of security  and in order  to more fully  secure the
       performance of the Obligations under this  Mortgage, hereby irrevocably
       appoints the  Mortgagee as its attorney for the  duration of the Credit
       Facility Period for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in  its name all documents  which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Vessel (including without limitation,  transferring title to  the
             Vessel  to  a third  party), provided,  however, that  such power
             shall not  be exercisable by or on  behalf of the Mortgagee until
             this  Mortgage shall have become immediately enforceable pursuant
             to Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of such  power as is referred to in Clause  12.01(a) by or
       on behalf of the  Mortgagee shall not put  any person dealing with  the
       Mortgagee upon  any enquiry  as  to whether  this  Mortgage has  become
       enforceable  nor shall  such person  be in  any way  affected by notice
       that  this Mortgage has not become enforceable and, in relation to both
       Clauses 12.01(a) and  12.01(b), the  exercise by the  Mortgagee of such
       power  shall be  conclusive evidence  as against  third parties  of its
       right to exercise the same.

13.    INDEMNITIES

13.01  The Owner will  indemnify and save  harmless the Secured  Creditors and
       each  agent or attorney  appointed under or  pursuant to  this Mortgage
       (each an "Indemnitee") from and against  any and all expenses,  claims,
       liabilities, losses, taxes, costs,  duties, fees and charges  suffered,
       incurred or made by  such Secured Creditors  or such agent or  attorney
       in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in  the  preservation or  enforcement of  the  Mortgagee's rights
             under this Mortgage; or

       (c)   on the  release of the Vessel  from the security  created by this
             Mortgage,

       and  the Secured Creditors  and each such agent  or attorney may retain
       and pay  all sums in  respect of the  same out of  money received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by a Secured  Creditor or such agent  or attorney shall  be recoverable
       on a full indemnity basis.

13.02  Without limiting the  foregoing Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of them, by reason of  (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including wrongful death) or  property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement reached;  or  (d)  any  violation of  laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Vessel.

13.03  If,  under any applicable law or  regulation, and whether pursuant to a
       judgment being made or  registered against the Owner or the liquidation
       of  the Owner  or  for  any  other  reason, any  payment  under  or  in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than the currency  in which such payment is due  under or in connection
       with this  Mortgage (the  "contractual currency"), then  to the  extent
       that  the amount of  such payment actually  received by  the Mortgagee,
       when converted into the contractual currency  at the rate of  exchange,
       falls short  of  the  amount  due under  or  in  connection  with  this
       Mortgage, the  Owner, as a separate  and independent  obligation, shall
       indemnify and hold  harmless the Mortgagee  against the amount  of such
       shortfall.  For the purposes of  this Clause 13.03, "rate of  exchange"
       means  the rate  at which  the Mortgagee is  able on  the date  of such
       payment (or,  if it is  not practicable for  the Mortgagee  to purchase
       the contractual currency with the payment currency  on the date of such
       payment, at the rate of  exchange as soon afterwards as is  practicable
       for the  Mortgagee to do so) to  purchase the contractual currency with
       the  payment currency and shall take into account any premium and other
       costs of exchange with respect thereto.

14.    EXPENSES

14.01  The  Owner shall pay  to the  Mortgagee on demand  all costs,  fees and
       expenses, including, but  not limited to,  legal fees and  expenses and
       valuation fees and  Taxes thereon incurred  by any Secured  Creditor or
       for which any Secured Creditor may become liable in connection with:

       (a)   the  negotiation,   preparation  and  execution  of   the  Credit
             Agreement,   the  Subsidiary  Guaranty   and  the   other  Credit
             Documents (or any of them); and/or

       (b)   the  preserving or  enforcing of,  or attempting  to preserve  or
             enforce,  any  of  its  rights under  the  Credit  Agreement, the
             Subsidiary Guaranty  or the  other  Credit Documents  (or any  of
             them).

14.02  The  Owner shall  pay to  the Mortgagee on  demand all  costs, fees and
       expenses (including, but not limited to,  legal fees and expenses)  and
       Taxes thereon incurred by any Secured Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of  the Credit  Agreement, the  Subsidiary Guaranty  or the
             other Credit Documents (or any of  them) requested by the  Owner,
             necessary or  advisable under applicable law  or relating  to the
             syndication  of  the Credit  Facility,  or  initiated during  the
             occurrence and continuation of an Event of Default; and/or

       (b)   any consent or waiver  required from the Mortgagee in relation to
             the  Credit  Agreement, the  Subsidiary  Guaranty  and the  other
             Credit Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty  and  the other  Credit  Documents  (or any  of  them) may  be
       subject  or give  rise  and shall  indemnify  the  Mortgagee on  demand
       against any and all  liabilities with respect to or  resulting from any
       delay or omission  on the part of the  Owner to pay any  such duties or
       Taxes.

15.    COMMUNICATIONS

15.01  All notices required to be given  to the Mortgagee shall be made to the
       following address:

                             Christiania Bank og Kreditkasse, New York Branch
                             11 West 42nd Street
                             7th Floor
                             New York, New York  10036
                             Attention:  Loan Administration
                             Telephone:  (212) 827-4800
                             Telefax:    (212) 827-4888

       All  other notices  shall  be made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This Mortgage shall  be binding upon and shall inure  to the benefit of
       the Secured Creditors and their respective  transferees, successors and
       permitted assigns,  and references  in  this Mortgage  to  any of  them
       shall be construed accordingly.

16.02  The Owner may  not assign  or transfer all  or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.16 of the  Credit Agreement, each  Bank has the
       right  to assign  or transfer  all  or any  part of  its rights  and/or
       obligations  under the Credit Agreement on  the terms therein provided.
       The  Mortgagee  shall notify  the  Owner  promptly following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total  amount of  this Mortgage  is One  Hundred Forty  Million US
       Dollars (US$140,000,000) of principal plus  interest, fees, commissions
       and  performance of mortgage  covenants.  The  discharge amount  is the
       same as the total amount.

18.    WAIVER; AMENDMENT

18.01  None of  the terms  and  conditions of  this Mortgage  may be  changed,
       waived, modified or varied in any  manner whatsoever unless in  writing
       duly signed by the Owner and the Mortgagee (with  the consent of either
       the  Required Banks or, to the extent  required by Section 12.12 of the
       Credit Agreement, all  of the Banks).   No amendment to the  Subsidiary
       Guaranty  which affects  the rights  and obligations  of  the Mortgagee
       hereunder  shall be  effective  without the  consent  of the  Mortgagee
       thereto.

19.    MISCELLANEOUS

19.01  This Mortgage shall be governed by the laws of the Republic of Panama.

19.02  If at any time  any one or more  of the provisions in this  Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability of  the
       remaining provisions of this Mortgage shall not be in any  way affected
       or impaired thereby.

19.03  The  Mortgagee, at  any time  and from  time to  time, may  delegate by
       power  of attorney or in any other  manner to any person or persons all
       or any  of the powers,  authorities and discretions  which are for  the
       time  being  exercisable  by  the  Mortgagee  under  this  Mortgage  in
       relation  to the  Vessel.   Any such delegation  may be  made upon such
       terms and subject to  such regulations as the Mortgagee  may think fit.
       The Mortgagee  shall not be  in any  way liable  or responsible to  the
       Owner for any loss  or damage arising from  any act, default,  omission
       or misconduct on the part of any such delegate.

19.04  The  appearing parties  hereby confer  a special  power of  attorney on
       Benedetti &  Benedetti, lawyers  of Panama,  Republic of Panama  and/or
       any partners in  the firm authorizing such firm or  any such partner to
       take  all necessary  steps  to record  this  Indenture  of First  Naval
       Mortgage in the  appropriate registries of the  City of Panama, and  to
       substitute this Power of Attorney herein granted.

19.05  A  certification or  determination by  the Mortgagee  as to  any matter
       provided for in this Mortgage  shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.06  The  Mortgagee  declares  that  it accepts  the  naval  mortgage hereby
       created under the terms above set forth.

20.    JURISDICTION

20.01  The Owner  agrees that the  Mortgagee shall have the  liberty but shall
       not be obliged to take any proceedings in the courts of any  country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose  of any proceedings for such enforcement  the Owner
       hereby submits to the jurisdiction of the courts of  any country of the
       choice of the Mortgagee.

20.02  Without  prejudice  to the  generality of  Clause 20.01,  the Mortgagee
       shall have the right  to arrest and take  action against the Vessel  at
       whatever place the  Vessel shall be found lying and  for the purpose of
       any  action which  the Mortgagee  may bring  before the  courts of such
       jurisdiction  or other judicial  authority and for  the purpose  of any
       action  which the  Mortgagee may  bring against  the Vessel,  any writ,
       notice,  judgment  or other  legal  process or  documents  may (without
       prejudice to  any other  method  of service  under  applicable law)  be
       served upon  the master of  the Vessel  (or upon  anyone acting as  the
       master) and such service shall be deemed good service  on the Owner for
       all purposes.

20.03  The Owner  agrees that  should the  Mortgagee bring a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in  connection with this Mortgage,  no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by or  on behalf of the Owner  or with respect of  its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner  hereby consents generally in respect  of any legal action or
       proceedings arising out of  or in connection with this  Mortgage to the
       giving out  of any relief  or the  issue of  any process in  connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made or given in  such
       action or proceedings.

IN WITNESS   whereof  the Owner  and the  Mortgagee have  duly executed  these
presents the day and year first before written.

READING & BATES DEVELOPMENT CO.
 

By:  _____________________________________


CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH


By:  _____________________________________



By:  _____________________________________




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )  ss:
COUNTY OF NEW YORK       )


                   On  this  __  day of  August,  1996,  before  me personally
appeared ____________________ to me known and who resides at                  
                      ;  and  who submitted  evidence  to  me  that  he  is  a
___________  of  READING  &  BATES  DEVELOPMENT CO.,  the  ___________________
company described in  and which executed the  foregoing mortgage; and  that he
signed his name thereto  pursuant to authority granted to him by  the Board of
Directors of said corporation.



____________________________________
Notary Public




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )  ss:
COUNTY OF NEW YORK       )


                   On  this  __  day of  August,  1996,  before me  personally
appeared    ______________    to    me    known    and    who    resides    at
__________________________;  and who submitted  evidence to me  that he/she is
__________   of  CHRISTIANIA  BANK  OG   KREDITKASSE,  NEW  YORK  BRANCH,  the
corporation described in and which  executed the foregoing mortgage; and  that
he/she signed his/her name thereto pursuant to authority granted to him/her by
the Board of Directors of said corporation.



____________________________________
Notary Public


                                                               Exhibit 10.116 


                      COLLATERAL ASSIGNMENT OF INSURANCE


      READING  & BATES  DEVELOPMENT CO.,  a Delaware  corporation (hereinafter
called  the "Assignor"), the owner of the Panamanian registered oil production
vessel Seillean (the  "Rig"), in consideration of One Dollar ($1) lawful money
of the United States of America and other good and valuable consideration, the
receipt  and sufficiency of which are hereby acknowledged, has sold, assigned,
transferred, set over, and granted a security interest, and by this instrument
does  sell, assign,  transfer, set  over  and grant  a security  interest unto
Christiania  Bank og  Kreditkasse,  New York  Branch,  not in  its  individual
capacity  but as Agent  for the Banks (as  that term is  defined in the Credit
Agreement,  as defined below) (hereinafter called the "Assignee") and unto the
Assignee's  successors and assigns,  to it and its  successors and assigns own
proper use  and benefit, and  as collateral security  for the full  and prompt
payment  when  due  (whether  at  the  stated  maturity,  by  acceleration  or
otherwise) of all obligations and liabilities of the Assignor, now existing or
hereafter incurred,  under, arising out  of or  in connection with  any Credit
Document (as that term is  defined in the Credit Agreement, as  defined below)
to which it is a party and the due performance and compliance by  the Assignor
with the terms of each such Credit Document, all right,  title and interest of
the  Assignor   under,  in  and  to  the  following  (all  of  the  following,
collectively,  the "Insurance  Collateral"):   (i) all  insurances (including,
without  limitation, all certificates of entry in protection and indemnity and
war  risks associations or  clubs) in respect of  the Rig, whether heretofore,
now  or hereafter effected, and all renewals  of or replacements for the same,
(ii)  except as hereinafter provided, all claims, returns of premium and other
moneys and claims for moneys due and to become due under or in respect of said
insurances, (iii) all other rights of the Assignor under or in respect of said
insurances  and (iv) any proceeds  of any of  the foregoing.   It is expressly
agreed that  anything herein  contained to the  contrary notwithstanding,  the
Assignor  shall remain  liable under  said  insurances to  perform all  of the
obligations assumed by it thereunder and the Assignee shall have no obligation
or liability (including, without limitation, any obligation  or liability with
respect  to  the  payment  of  premiums,  calls  or  assessments)  under  said
insurances by  reason of or arising  out of this instrument  of assignment nor
shall  the  Assignee be  required or  obligated in  any  manner to  perform or
fulfill any obligations of  the Assignor under or pursuant  to said insurances
or to make any payment or to make any inquiry as to the nature  or sufficiency
of any payment received by it or to  present or file any claim, or to take any
other action  to collect or  enforce the payment of  any amounts which  or may
have been assigned to it or to which it may be entitled hereunder at  any time
or times.

      This  Assignment is made pursuant  to the Credit  Agreement, dated April
30,  1996 (as the same  may be amended, modified  or supplemented from time to
time,  the  "Credit Agreement"),  by and  among  Reading &  Bates Corporation,
Reading & Bates Drilling Co.,  the Banks (as defined therein)  and Christiania
Bank og Kreditkasse, New York Branch, as Agent.

      The  Assignor hereby  constitutes  the Assignee  and its  successors and
assigns, the Assignor's true and lawful attorney, with full power (in the name
of the Assignor or  otherwise) to ask, require, demand,  receive, compound and
give  acquittance for  any and  all moneys and  claims for  moneys due  and to
become due  under or arising out of said  insurances, to endorse any checks or
other instruments or orders in connection therewith and to file  any claims or
to take any action or institute any proceedings which the Assignee may deem to
be  necessary  or  advisable in  the  premises;  provided,  however, that  the
Assignee  shall not  take any  action pursuant  to the  power granted  by this
paragraph unless an  Event of  Default under the  Credit Agreement shall  have
occurred and be continuing.   Such appointment of the Assignee as  attorney is
irrevocable and coupled with an interest. 

      The  Assignor hereby covenants and agrees to procure that notice of this
Assignment, in  the  form  of Annex  I  hereto, shall  be  duly given  to  all
underwriters  and  that  where the  consent  of  any  underwriter is  required
pursuant  to  any of  the insurances  assigned hereby,  such consent  shall be
obtained  and evidence thereof shall be given  to the Assignee, and that there
shall be duly endorsed upon all slips, cover notes, policies, certificates  of
entry  or other  instruments issued  or to  be issued  in connection  with the
insurances assigned hereby such clauses as to additional named assured or loss
payees  set forth in Annex I hereto.  In all cases, unless otherwise agreed in
writing by the  Assignee, such  slips, cover notes,  notices, certificates  of
entry or other instruments shall show the Assignee and the Banks as additional
named assured  and shall provide  that there will  be no recourse  against the
Assignee for payment of premiums, calls or assessments.

      The powers  and authority to the  Assignee herein have been  given for a
valuable consideration and are hereby declared to be irrevocable.

      The Assignor agrees  that at any time  and from time  to time, upon  the
written,  reasonable request of the  Assignee, the Assignor  will promptly and
duly execute and deliver any and all such further instruments and documents as
the  Assignee may reasonably  require in obtaining  the full  benefits of this
Assignment and of the rights and powers herein granted.

      The Assignor hereby  warrants and represents that it has not assigned or
pledged,  and hereby covenants that, without the prior written consent thereof
of  the Assignee,  so long as  this instrument  of assignment  shall remain in
effect, it will not assign or pledge the whole or any part of the right, title
and interest hereby assigned to anyone other than the Assignee, its successors
or assigns, and  it will not take  or omit to take  any action, the taking  or
omission of  which  might  result  in  an alteration  or  impairment  of  said
insurances or  this  Assignment, or  of  any of  the  rights created  by  said
insurances or this Assignment.

      All notices or other communications which are required to be made to the
Assignee hereunder shall be made by airmail postage prepaid letter, telefax or
by telex, confirmed by letter to:

                  Christiania Bank og Kreditkasse,
                  New York Branch
                  11 West 42nd Street
                  New York, New York 10036
                  Attn:  Hans Kjelsrud
                  Tel No.:  (212) 827-4814
                  Fax No.:  (212) 827-4888

or  at such other  address as any  such party  may designate by  notice to the
others.

      Any payments  made pursuant to  the terms hereof  shall be made  to such
account  as  may,  from  time  to time,  be  designated  by  the  Assignee for
distribution  in accordance with the  Mortgages, the Credit  Agreement and the
other Credit Documents.

      THIS  ASSIGNMENT SHALL BE GOVERNED BY THE  INTERNAL LAWS OF THE STATE OF
NEW YORK, WITHOUT  REFERENCE TO PRINCIPLES OF CONFLICTS OF  LAW.  THE ASSIGNOR
HEREBY IRREVOCABLY  WAIVES  ALL RIGHTS  TO  A TRIAL  BY  JURY IN  ANY  ACTION,
PROCEEDING OR COUNTERCLAIM ARISING  OUT OF OR RELATING TO THIS ASSIGNMENT, THE
OTHER CREDIT DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

      None  of the  terms and conditions  of this  Assignment may  be changed,
waived, modified  or varied in  any manner whatsoever  unless in writing  duly
signed  by  the Assignor  and the  Assignee (with  the  consent of  either the
Required Banks (as defined in the Credit Agreement) or, to the extent required
by Section 12.12 of the Credit Agreement, all of the Banks).

      In  the event that  the Insurance Collateral  or any portion  thereof is
sold  in connection  with  a sale  permitted  by Section  8.02  of the  Credit
Agreement or  is otherwise released at the direction of the Required Banks (or
all  the Banks,  to  the  extent  required  by Section  12.12  of  the  Credit
Agreement),  the Assignee, at  the request and  expense of  the Assignor, will
duly assign, transfer and deliver to the Assignor (without recourse  and with-
out  any representation  or warranty)  such of  the Insurance  Collateral (and
releases therefor)  as is then being (or has been)  so sold or released and as
may be in the possession of the Assignee and has not theretofore been released
pursuant to  this Assignment.    At any  time the  Assignor  desires that  the
Insurance Collateral  or a portion  thereof be  released as  provided in  this
paragraph, the Assignor shall deliver to the Assignee a certificate signed  by
an Authorized  Officer (as defined in  the Credit Agreement)  stating that the
release of the Insurance  Collateral or portion thereof is  permitted pursuant
to this paragraph.

      The  Assignor  hereby  authorizes  the  Assignee  to  execute  and  file
Financing  Statements  (Form UCC-1)  and  amendments  thereto as  provided  in
Article 9 of the Uniform Commercial Code.


      IN WITNESS WHEREOF, the  Assignor has caused this Assignment  to be duly
executed the 30th day of August, 1996.

                                   *   *   *


                                    READING & BATES DEVELOPMENT CO.



                                    By: ________________________
                                        Its:



                                                                ANNEX I       
                                                                  to          
                                                      Assignment of Insurances





                             NOTICE OF ASSIGNMENT


      Reading  &  Bates  Development  Co.  (the "Owner"),  the  owner  of  the
Panamanian  flag oil  production  vessel Seillean  (the  "Rig"), HEREBY  GIVES
NOTICE that  by a Collateral Assignment of Insurance dated August 30, 1996 and
made between the Owner and  Christiania Bank og Kreditkasse, New York  Branch,
as Agent (the "Assignee") for itself and certain other Banks (the "Assignee"),
the Owner  assigned  to the  Assignee  all of  the  Owner's right,  title  and
interest in  and to all  insurances and the  benefit of all insurances  now or
hereafter  taken out in respect of the Rig.  This Notice of Assignment and the
Loss Payable  Clauses attached hereto are  to be indorsed on  all policies and
certificates of entry evidencing such insurance.


                        READING & BATES DEVELOPMENT CO.



                        By                        
                           Its:



                             LOSS PAYABLE CLAUSES

                              Hull and War Risks


      Loss,  if any,  payable to  Christiania  Bank og  Kreditkasse, New  York
Branch, as  Agent for the Banks, for  distribution by it to  said Banks and to
Reading  & Bates  Development Co.,  Owner, as  their respective  interests may
appear,  or  order,  except  that,  unless  Underwriters  have been  otherwise
instructed  by notice  in writing  from the  Agent, in  the  case of  any loss
involving any damage to the Rig or liability  of the Rig, the Underwriters may
pay directly for the repair, salvage, liability or other charges  involved or,
if the  Owner of  the Rig  shall have repaired  the damage  and paid  the cost
thereof, or  discharged the  liability or paid  the salvage or  other charges,
then the  Underwriters may pay  the Owner as  reimbursement to the  extent the
Owner has paid the covered loss.

      In the event of an actual or constructive total loss or a compromised or
arranged total  loss or requisition  of title, all insurance  payment therefor
shall  be paid to  the Agent,  for distribution by  it in  accordance with the
terms of the first preferred Panamanian mortgage relating to the Rig.


                           PROTECTION AND INDEMNITY

      Loss,  if any,  payable to  Christiania  Bank og  Kreditkasse, New  York
Branch, as  Agent for the  Banks for distribution  by it to  the Banks  and to
Reading  & Bates  Development Co.,  Owner, as  their respective  interests may
appear,  or  order, except  that,  unless  and  until Underwriters  have  been
otherwise instructed by notice in writing from the Agent, any loss may be paid
directly to the  person to whom  the liability covered  by this insurance  has
been incurred, or to the Owner of the Rig to reimburse it for any loss, damage
or  expenses incurred by  it and covered  by this insurance,  provided that in
respect  of any claim  in excess  of $1,000,000,  the Underwriters  shall have
first  received  evidence   that  the  liability  insured   against  has  been
discharged.



                                                                Exhibit 10.117


                                                                              


                               CREDIT AGREEMENT


                                     among

                         READING & BATES CORPORATION,

                         READING & BATES DRILLING CO.,

                         VARIOUS LENDING INSTITUTIONS,

                               BANQUE INDOSUEZ, 
                            as DOCUMENTATION AGENT

                       CREDIT LYONNAIS NEW YORK BRANCH,
                             as DOCUMENTATION AGENT

                                      and

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,

                           as ADMINISTRATIVE AGENT,
                                   ARRANGER
                             AND SECURITY TRUSTEE


                     ____________________________________


                         Dated as of November 13, 1996

                     ____________________________________


                               TABLE OF CONTENTS
                                                                          Page

SECTION 1.  Amount and Terms of Credit  . . . . . . . . . . . . . . . . .    1
      1.01  Commitment  . . . . . . . . . . . . . . . . . . . . . . . . .    1
      1.02  Minimum Borrowing Amounts, etc. . . . . . . . . . . . . . . .    2
      1.03  Notice of Borrowing . . . . . . . . . . . . . . . . . . . . .    2
      1.04  Disbursement of Funds . . . . . . . . . . . . . . . . . . . .    2
      1.05  Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
      1.06  Conversions . . . . . . . . . . . . . . . . . . . . . . . . .    3
      1.07  Pro Rata Borrowings . . . . . . . . . . . . . . . . . . . . .    4
      1.08  Interest  . . . . . . . . . . . . . . . . . . . . . . . . . .    4
      1.09  Interest Periods  . . . . . . . . . . . . . . . . . . . . . .    5
      1.10  Increased Costs, Illegality, etc. . . . . . . . . . . . . . .    6
      1.11  Compensation  . . . . . . . . . . . . . . . . . . . . . . . .    8
      1.12  Change of Lending Office; Limitation on Indemnities . . . . .    9
      1.13  Replacement of Banks  . . . . . . . . . . . . . . . . . . . .    9

SECTION 2.  Letters of Credit . . . . . . . . . . . . . . . . . . . . . .   10
      2.01  Letters of Credit . . . . . . . . . . . . . . . . . . . . . .   10
      2.02  Letter of Credit Requests; Request for Issuance of Letter of
              Credit  . . . . . . . . . . . . . . . . . . . . . . . . . .   11
      2.03  Agreement to Repay Letter of Credit Payments  . . . . . . . .   11
      2.04  Letter of Credit Participations . . . . . . . . . . . . . . .   12
      2.05  Increased Costs . . . . . . . . . . . . . . . . . . . . . . .   14
      2.06  Indemnities . . . . . . . . . . . . . . . . . . . . . . . . .   15

SECTION 3.  Fees; Commitments . . . . . . . . . . . . . . . . . . . . . .   15
      3.01  Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   15
      3.02  Voluntary Reduction of Commitments  . . . . . . . . . . . . .   16
      3.03  Mandatory Adjustments of Commitments, etc.  . . . . . . . . .   17

SECTION 4.  Payments  . . . . . . . . . . . . . . . . . . . . . . . . . .   18
      4.01  Voluntary Prepayments . . . . . . . . . . . . . . . . . . . .   18
      4.02  Mandatory Prepayments . . . . . . . . . . . . . . . . . . . .   19
      4.03  Method and Place of Payment . . . . . . . . . . . . . . . . .   20
      4.04  Net Payments  . . . . . . . . . . . . . . . . . . . . . . . .   21

SECTION 5.  Conditions Precedent  . . . . . . . . . . . . . . . . . . . .   23
      5.01  Execution of Agreement  . . . . . . . . . . . . . . . . . . .   23
      5.02  No Default; Representations and Warranties  . . . . . . . . .   23
      5.03  Officer's Certificate . . . . . . . . . . . . . . . . . . . .   23
      5.04  Opinions of Counsel . . . . . . . . . . . . . . . . . . . . .   23
      5.05  Corporate Proceedings . . . . . . . . . . . . . . . . . . . .   24
      5.06  Existing Indebtedness Agreements  . . . . . . . . . . . . . .   24
      5.07  Adverse Change, etc.  . . . . . . . . . . . . . . . . . . . .   24
      5.08  Litigation  . . . . . . . . . . . . . . . . . . . . . . . . .   24
      5.09  Approvals . . . . . . . . . . . . . . . . . . . . . . . . . .   25
      5.10  Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   25
      5.11  Security Agreement  . . . . . . . . . . . . . . . . . . . . .   25
      5.12  Subsidiary Guaranty . . . . . . . . . . . . . . . . . . . . .   26
      5.13  Mortgages . . . . . . . . . . . . . . . . . . . . . . . . . .   26
      5.14  Evidence of Lien, etc.  . . . . . . . . . . . . . . . . . . .   26
      5.15  Rig Reports; Drilling Contracts . . . . . . . . . . . . . . .   27
      5.16  Insurance Report  . . . . . . . . . . . . . . . . . . . . . .   27
      5.17  Pledge Agreement  . . . . . . . . . . . . . . . . . . . . . .   28
      5.18  Refinancing; Existing Credit Agreement  . . . . . . . . . . .   28
      5.19  Compliance Certificate  . . . . . . . . . . . . . . . . . . .   29

SECTION 6.  Representations, Warranties and Agreements  . . . . . . . . .   29
      6.01  Corporate Status  . . . . . . . . . . . . . . . . . . . . . .   29
      6.02  Corporate Power and Authority . . . . . . . . . . . . . . . .   30
      6.03  No Violation  . . . . . . . . . . . . . . . . . . . . . . . .   30
      6.04  Litigation  . . . . . . . . . . . . . . . . . . . . . . . . .   30
      6.05  Use of Proceeds; Margin Regulations . . . . . . . . . . . . .   30
      6.06  Governmental Approvals  . . . . . . . . . . . . . . . . . . .   31
      6.07  Investment Company Act  . . . . . . . . . . . . . . . . . . .   31
      6.08  Public Utility Holding Company Act  . . . . . . . . . . . . .   31
      6.09  True and Complete Disclosure  . . . . . . . . . . . . . . . .   31
      6.10  Financial Condition; Financial Statements; Projections  . . .   32
      6.11  Security Interests  . . . . . . . . . . . . . . . . . . . . .   33
      6.12  Tax Returns and Payments  . . . . . . . . . . . . . . . . . .   33
      6.13  Compliance with ERISA . . . . . . . . . . . . . . . . . . . .   33
      6.14  Subsidiaries  . . . . . . . . . . . . . . . . . . . . . . . .   34
      6.15  Patents, etc. . . . . . . . . . . . . . . . . . . . . . . . .   34
      6.16  Pollution and Other Regulations . . . . . . . . . . . . . . .   34
      6.17  Properties  . . . . . . . . . . . . . . . . . . . . . . . . .   35
      6.18  Labor Relations . . . . . . . . . . . . . . . . . . . . . . .   36
      6.19  Existing Indebtedness . . . . . . . . . . . . . . . . . . . .   36
      6.20  Citizenship . . . . . . . . . . . . . . . . . . . . . . . . .   36
      6.21  Rig Classification  . . . . . . . . . . . . . . . . . . . . .   36

SECTION 7.  Affirmative Covenants . . . . . . . . . . . . . . . . . . . .   36
      7.01  Information Covenants . . . . . . . . . . . . . . . . . . . .   37
      7.02  Books, Records and Inspections  . . . . . . . . . . . . . . .   39
      7.03  Insurance . . . . . . . . . . . . . . . . . . . . . . . . . .   39
      7.04  Payment of Taxes  . . . . . . . . . . . . . . . . . . . . . .   39
      7.05  Consolidated Corporate Franchises . . . . . . . . . . . . . .   40
      7.06  Compliance with Statutes, etc.  . . . . . . . . . . . . . . .   40
      7.07  Good Repair . . . . . . . . . . . . . . . . . . . . . . . . .   40
      7.08  End of Fiscal Years; Fiscal Quarters  . . . . . . . . . . . .   40
      7.09  Use of Proceeds . . . . . . . . . . . . . . . . . . . . . . .   40
      7.10  Earnings Concentration Account  . . . . . . . . . . . . . . .   40
      7.11  Additional Rig Valuations . . . . . . . . . . . . . . . . . .   41
      7.12  Further Assurances  . . . . . . . . . . . . . . . . . . . . .   41
      7.13  ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . .   42

SECTION 8.  Negative Covenants  . . . . . . . . . . . . . . . . . . . . .   43
      8.01  Changes in Business . . . . . . . . . . . . . . . . . . . . .   43
      8.02  Consolidation, Merger or Sale of Assets, etc. . . . . . . . .   44
      8.03  Liens on Collateral; Arcade Drilling  . . . . . . . . . . . .   45
      8.04  Indebtedness of Arcade  . . . . . . . . . . . . . . . . . . .   46
      8.05  Dividends; Restrictions on Subsidiaries, etc. . . . . . . . .   46
      8.06  Transactions with Affiliates  . . . . . . . . . . . . . . . .   48
      8.07  Vessel Management; Registry . . . . . . . . . . . . . . . . .   48
      8.08  Coverage Ratio  . . . . . . . . . . . . . . . . . . . . . . .   49
      8.09  Working Capital . . . . . . . . . . . . . . . . . . . . . . .   49
      8.10  Leverage Ratio  . . . . . . . . . . . . . . . . . . . . . . .   49
      8.11  Collateral Maintenance  . . . . . . . . . . . . . . . . . . .   49

SECTION 9.  Events of Default . . . . . . . . . . . . . . . . . . . . . .   49
      9.01  Payments  . . . . . . . . . . . . . . . . . . . . . . . . . .   49
      9.02  Representations, etc. . . . . . . . . . . . . . . . . . . . .   49
      9.03  Covenants . . . . . . . . . . . . . . . . . . . . . . . . . .   49
      9.04  Default Under Other Agreements  . . . . . . . . . . . . . . .   50
      9.05  Bankruptcy, etc.  . . . . . . . . . . . . . . . . . . . . . .   50
      9.06  Security Documents  . . . . . . . . . . . . . . . . . . . . .   51
      9.07  Guaranty  . . . . . . . . . . . . . . . . . . . . . . . . . .   51
      9.08  Judgments . . . . . . . . . . . . . . . . . . . . . . . . . .   51
      9.09  Citizenship . . . . . . . . . . . . . . . . . . . . . . . . .   51
      9.10  Employee Benefit Plans  . . . . . . . . . . . . . . . . . . .   51
      9.11  Change of Control . . . . . . . . . . . . . . . . . . . . . .   52

SECTION 10.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . .   52

SECTION 11.  The Administrative Agent and the Security Trustee  . . . . .   71
      11.01  Appointment of the Administrative Agent and the Security
              Trustee . . . . . . . . . . . . . . . . . . . . . . . . . .   71
      11.02  Nature of Duties . . . . . . . . . . . . . . . . . . . . . .   71
      11.03  Lack of Reliance on the Administrative Agent . . . . . . . .   72
      11.04  Certain Rights of the Administrative Agent . . . . . . . . .   72
      11.05  Reliance . . . . . . . . . . . . . . . . . . . . . . . . . .   72
      11.06  Indemnification  . . . . . . . . . . . . . . . . . . . . . .   73
      11.07  The Administrative Agent in Its Individual Capacity  . . . .   73
      11.08  Holders  . . . . . . . . . . . . . . . . . . . . . . . . . .   73
      11.09  Resignation by the Administrative Agent  . . . . . . . . . .   73

SECTION 12.  Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . .   74
      12.01  Payment of Expenses, etc.  . . . . . . . . . . . . . . . . .   74
      12.02  Right of Setoff  . . . . . . . . . . . . . . . . . . . . . .   75
      12.03  Notices  . . . . . . . . . . . . . . . . . . . . . . . . . .   76
      12.04  Benefit of Agreement . . . . . . . . . . . . . . . . . . . .   76
      12.05  No Waiver; Remedies Cumulative . . . . . . . . . . . . . . .   78
      12.06  Payments Pro Rata  . . . . . . . . . . . . . . . . . . . . .   78
      12.07  Calculations; Computations . . . . . . . . . . . . . . . . .   79
      12.08  GOVERNING LAW; SUBMISSION TO JURISDICTION; VENUE; WAIVER OF
              JURY TRIAL  . . . . . . . . . . . . . . . . . . . . . . . .   79
      12.09  Counterparts . . . . . . . . . . . . . . . . . . . . . . . .   80
      12.10  Effectiveness  . . . . . . . . . . . . . . . . . . . . . . .   80
      12.11  Headings Descriptive . . . . . . . . . . . . . . . . . . . .   81
      12.12  Amendment or Waiver  . . . . . . . . . . . . . . . . . . . .   81
      12.13  Survival . . . . . . . . . . . . . . . . . . . . . . . . . .   82
      12.14  Domicile of Loans  . . . . . . . . . . . . . . . . . . . . .   82
      12.15  Confidentiality  . . . . . . . . . . . . . . . . . . . . . .   82
      12.16  Registry . . . . . . . . . . . . . . . . . . . . . . . . . .   82

SECTION 13.  Holdings Guaranty  . . . . . . . . . . . . . . . . . . . . .   83
      13.01  The Guaranty . . . . . . . . . . . . . . . . . . . . . . . .   83
      13.02  Bankruptcy . . . . . . . . . . . . . . . . . . . . . . . . .   83
      13.03  Nature of Liability  . . . . . . . . . . . . . . . . . . . .   83
      13.04  Independent Obligation . . . . . . . . . . . . . . . . . . .   84
      13.05  Waiver of Notice, etc. . . . . . . . . . . . . . . . . . . .   84
      13.06  Authorization  . . . . . . . . . . . . . . . . . . . . . . .   84
      13.07  Reliance . . . . . . . . . . . . . . . . . . . . . . . . . .   85
      13.08  Subordination  . . . . . . . . . . . . . . . . . . . . . . .   85
      13.09  Waiver . . . . . . . . . . . . . . . . . . . . . . . . . . .   86

ANNEX I       --  Commitments
ANNEX II      --  Bank Addresses
ANNEX III     --  Existing Letters of Credit
ANNEX IV      --  Commitment Reduction Schedule
ANNEX V       --  Subsidiaries
ANNEX VI      --  Rigs and Vessels
ANNEX VII     --  Existing Indebtedness
ANNEX VIII    --  Existing Liens
ANNEX IX      --  Approved Shipbrokers

EXHIBIT A     --  Form of Notice of Borrowing
EXHIBIT B     --  Form of Note
EXHIBIT C     --  Form of Letter of Credit Request
EXHIBIT D     --  Form of Section 4.04(b)(ii) Certificate
EXHIBIT E-1   --  Form of Opinion of Wayne Hillin, Esq.
EXHIBIT E-2   --  Form of Opinion of White & Case
EXHIBIT F     --  Form of Officers' Certificate
EXHIBIT G     --  Form of Security Agreement
EXHIBIT H     --  Form of Subsidiary Guaranty
EXHIBIT I-1   --  Form of US Mortgage 
EXHIBIT I-2   --  Form of Panamanian Mortgage
EXHIBIT I-3   --  Form of Australian Mortgage
EXHIBIT J     --  Form of Pledge Agreement
EXHIBIT K     --  Form of Compliance Certificate 
EXHIBIT L     --  Form of Assignment and Assumption Agreement

========================================================================
 
            CREDIT AGREEMENT, dated  as of November 13, 1996,  among READING &
BATES CORPORATION  ("Holdings"),  a  Delaware  corporation,  READING  &  BATES
DRILLING  CO.  (the   "Borrower"),  an  Oklahoma   corporation,  the   lending
institutions  listed from time to  time on Annex I hereto  (each a "Bank" and,
collectively,  the  "Banks"), BANQUE  INDOSUEZ  and CREDIT  LYONNAIS  NEW YORK
BRANCH as documentation  agents (the "Documentation  Agents") and  CHRISTIANIA
BANK OG  KREDITKASSE, NEW YORK  BRANCH, as administrative agent,  arranger and
security  trustee  (the "Administrative  Agent").    Unless otherwise  defined
herein, all capitalized  terms used herein and defined in  Section 10 are used
herein as so defined.


                             W I T N E S S E T H :


            WHEREAS, subject  to and upon  the terms and conditions  set forth
herein, the Banks  are willing to  make available to  the Borrower the  credit
facilities provided for herein;


            NOW, THEREFORE, IT IS AGREED:

            SECTION 1.  Amount and Terms of Credit.

            1.01  Commitment.   Subject to  and upon the  terms and conditions
herein set forth, each Bank  severally agrees to make a loan or  loans (each a
"Loan" and,  collectively, the  "Loans") under the  Facility to  the Borrower,
which Loans (i) shall be made at any  time and from time to time on and  after
the  Initial Borrowing  Date and prior  to the  Maturity Date,  (ii) except as
hereinafter  provided, may, at  the option  of the  Borrower, be  incurred and
maintained as,  and/or converted  into, Base Rate  Loans or  Eurodollar Loans,
provided  that all  Loans made  as part  of the  same Borrowing  shall, unless
otherwise specifically  provided herein,  consist of Loans  of the  same Type,
(iii) may be  repaid and reborrowed in accordance with  the provisions hereof,
(iv) shall not exceed in the aggregate for all Banks at any time  outstanding,
the  Total Commitment  and  (v) shall  not  exceed for  any Bank  at  any time
outstanding that  aggregate  principal amount  which, when  combined with  the
aggregate  outstanding principal  amount of all  other Loans of  such Bank and
with  such Bank's  Adjusted Percentage  of the  Letter of  Credit Outstandings
(exclusive  of Unpaid  Drawings which  are repaid  with the  proceeds of,  and
simultaneously with the incurrence of,  the respective incurrence of Loans) at
such time,  equals (1)  if such  Bank is a  Non-Defaulting Bank,  the Adjusted
Commitment  of such  Bank at such  time and (2)  if such Bank  is a Defaulting
Bank, the Commitment of such Bank at such time.  

            1.02  Minimum  Borrowing  Amounts, etc.   The  aggregate principal
amount of each Borrowing shall  not be less than the Minimum  Borrowing Amount
for the Loans  constituting such Borrowing.   More than  one Borrowing may  be
incurred on any day, provided that at no time shall there be outstanding  more
than eight Borrowings of Eurodollar Loans.

            1.03  Notice of Borrowing.  Whenever the Borrower desires to incur
Loans under the Facility, it shall give the Administrative Agent at its Notice
Office,  prior to  12:00 Noon (New York  time), at least  three Business Days'
prior written notice (or  telephonic notice promptly confirmed in  writing) of
each  Borrowing of  Eurodollar Loans  and at  least one  Business Day's  prior
written  notice (or telephonic notice  promptly confirmed in  writing) of each
Borrowing of Base Rate  Loans to be made hereunder.  Each  such notice (each a
"Notice  of  Borrowing") shall  be  in  the form  of  Exhibit A  and shall  be
irrevocable and shall  specify (i) the aggregate principal amount of the Loans
to be made pursuant to such Borrowing, (ii) the date of Borrowing (which shall
be a Business  Day), (iii) whether the  respective Borrowing shall consist  of
Base Rate  Loans  or  (to  the extent  permitted)  Eurodollar  Loans  and,  if
Eurodollar Loans, the Interest  Period to be initially applicable  thereto and
(iv)  disbursement instructions.  The Administrative Agent shall promptly give
each  Bank written notice (or telephonic notice promptly confirmed in writing)
of each proposed Borrowing, of such  Bank's proportionate share thereof and of
the other matters covered by the Notice of Borrowing.

            1.04  Disbursement of  Funds.  (a)  No later  than 1:00  P.M. (New
York time) on the  date specified in each Notice of  Borrowing, each Bank will
make available  its pro rata share of  each Borrowing requested to  be made on
such date in the manner provided below.  All such amounts shall be made avail-
able to the  Administrative Agent  in U.S. Dollars  and immediately  available
funds at the Payment  Office and the  Administrative Agent promptly will  make
available to the  Borrower by depositing to its account  at the Payment Office
(or  in accordance  with  any other  disbursement  instructions given  by  the
Borrower)  the aggregate of the amounts so  made available in U.S. Dollars and
immediately  available funds.  Unless the Administrative Agent shall have been
notified by  any Bank prior to the  date of Borrowing that  such Bank does not
intend  to make  available  to the  Administrative  Agent its  portion  of the
Borrowing or Borrowings to be made  on such date, the Administrative Agent may
assume that  such Bank has  made such  amount available to  the Administrative
Agent on such  date of Borrowing,  and the  Administrative Agent, in  reliance
upon  such assumption, may (in its  sole discretion and without any obligation
to do so)  make available to  the Borrower  a corresponding amount.   If  such
corresponding amount is not in fact made available to the Administrative Agent
by such Bank and the Administrative Agent has made available same to the  Bor-
rower,  the Administrative Agent shall be entitled to recover such correspond-
ing amount  from such Bank.   If  such Bank  does not  pay such  corresponding
amount  forthwith  upon  the   Administrative  Agent's  demand  therefor,  the
Administrative Agent shall promptly (and in any event within two Business Days
from  the  date the  Administrative Agent  made  such funds  available  to the
Borrower) notify the  Borrower, and  the Borrower shall  (within two  Business
Days   of  receiving  such  demand)  pay  such  corresponding  amount  to  the
Administrative  Agent.   The Administrative  Agent shall  also be  entitled to
recover on demand from such Bank or the Borrower, as the case may be, interest
on  such corresponding  amount  in respect  of  each day  from  the date  such
corresponding amount was  made available  by the Administrative  Agent to  the
Borrower  to  the  date   such  corresponding  amount  is  recovered   by  the
Administrative  Agent, at a rate per annum equal  to (x) if paid by such Bank,
the overnight Federal Funds Effective Rate or (y) if paid by the Borrower, the
then  applicable rate of interest, calculated in accordance with Section 1.08,
for the respective Loans.

            (b)  Nothing herein shall be  deemed to relieve any Bank  from its
obligation to fulfill  its commitments  hereunder or to  prejudice any  rights
which the Borrower  may have against  any Bank as a  result of any  default by
such Bank hereunder.

            1.05  Notes.  (a)  The Borrower's obligation to pay  the principal
of, and interest on, the Loans made to it by each Bank shall be evidenced by a
promissory  note  substantially  in   the  form  of  Exhibit  B   with  blanks
appropriately   completed  in   conformity  herewith   (each  a   "Note"  and,
collectively, the "Notes").

            (b)  The  Note issued to  each Bank shall  (i) be  executed by the
Borrower, (ii) be payable to the  order of such Bank and be dated  the Initial
Borrowing Date, (iii) be in a  stated principal amount equal to the Commitment
of such Bank on  such date and be payable in the principal amount of the Loans
evidenced thereby, (iv) mature on the Maturity Date, (v) bear interest as pro-
vided in the  appropriate clause of Section  1.08 in respect of the  Base Rate
Loans  and Eurodollar Loans,  as the case  may be, evidenced  thereby, (vi) be
subject to  mandatory  repayment as  provided  in Section  4.02  and (vii)  be
entitled to the benefits of and subject to this Agreement and the other Credit
Documents.

            (c)  Each Bank will  note on  its internal records  the amount  of
each Loan  made by it and each  payment in respect thereof  and will, prior to
any  transfer of any  of its Notes,  endorse on  the reverse side  thereof the
outstanding principal amount  of Loans evidenced thereby.  Failure to make any
such notation shall  not affect the Borrower's obligations in  respect of such
Loans.

            1.06  Conversions.  The Borrower shall have the  option to convert
on any Business Day all or a portion at least equal  to the applicable Minimum
Borrowing  Amount of  the  outstanding principal  amount  of the  Loans  owing
pursuant  to the  Facility  into a  Borrowing or  Borrowings  pursuant to  the
Facility of  another  Type of  Loan,  provided that  (i) except  as  otherwise
provided in Section 1.10(b), Eurodollar Loans may be converted into  Base Rate
Loans  only on the  last day of  an Interest Period applicable  thereto and no
partial  conversion  of  a Borrowing  of  Eurodollar  Loans  shall reduce  the
outstanding principal amount  of the  Eurodollar Loans made  pursuant to  such
Borrowing to less than  the Minimum Borrowing Amount applicable  thereto, (ii)
no Base  Rate Loans may be converted into Eurodollar  Loans at any time when a
Default or Event of Default is  in existence on the date of the  conversion if
the Administrative  Agent or  the Required Banks  have determined that  such a
conversion  would  be disadvantageous  to the  Banks  and (iii)  Borrowings of
Eurodollar Loans resulting from  this Section 1.06 shall be limited  in number
as provided  in Section 1.02.   Each such conversion shall be  effected by the
Borrower giving the Administrative Agent at its Notice Office, prior to  12:00
Noon (New York time), at least three Business Days' (or one Business Day's, in
the  case of  a conversion  into  Base Rate  Loans) prior  written notice  (or
telephonic  notice  promptly   confirmed  in  writing)  (each  a   "Notice  of
Conversion")  specifying the Loans to be so converted, the Type of Loans to be
converted into and,  if to be converted into a  Borrowing of Eurodollar Loans,
the  Interest Period to be  initially applicable thereto.   The Administrative
Agent shall  give each  Bank prompt  notice of  any  such proposed  conversion
affecting any of its Loans.

            1.07  Pro Rata Borrowings.   All Loans under this  Agreement shall
be made by the Banks pro rata on the basis of their Commitments.  It is under-
stood that no Bank  shall be responsible for any default by  any other Bank in
its  obligation to make Loans hereunder and  that each Bank shall be obligated
to make  the Loans  provided to be  made by  it hereunder,  regardless of  the
failure of any other Bank to fulfill its commitments hereunder.

            1.08  Interest.  (a)  The  unpaid principal  amount  of each  Base
Rate  Loan shall bear  interest from the  date of the  Borrowing thereof until
maturity (whether  by acceleration  or otherwise)  at a  rate per  annum which
shall at all times be the Base Rate in effect from time to time.

            (b)  The  unpaid principal  amount of  each Eurodollar  Loan shall
bear interest from the date  of the Borrowing thereof until  maturity (whether
by acceleration or otherwise) at a rate per annum which shall at all  times be
the Applicable Eurodollar Margin plus the relevant Eurodollar Rate.

            (c)  All overdue  principal and, to  the extent permitted  by law,
overdue interest in respect of each Loan and any other  overdue amount payable
hereunder  shall bear interest at  a rate per annum equal  to the Base Rate in
effect  from time to time  plus 2%, provided that no  Loan shall bear interest
after maturity (whether by acceleration or otherwise) at a rate per annum less
than 2% plus the rate of interest applicable thereto at maturity.

            (d)  Interest shall  accrue from  and  including the  date of  any
Borrowing to  but excluding  the date  of any repayment  thereof and  shall be
payable (i) in  respect of each Base  Rate Loan, quarterly  in arrears on  the
first  day of each January, April,  July and October, (ii)  in respect of each
Eurodollar Loan, on  the last day  of each Interest Period  applicable thereto
and, in the case of an Interest Period in excess of three months, on  the date
occurring three months after the  first day of such Interest Period  and (iii)
in  respect of  each Loan,  on any  prepayment or  conversion (other  than the
prepayment and  conversion  of Base  Rate  Loans) (on  the amount  prepaid  or
converted), at maturity (whether by acceleration or otherwise) and, after such
maturity, on demand.

            (e)  All  computations  of interest  hereunder  shall  be made  in
accordance with Section 12.07(b).

            (f)  The Administrative Agent, upon determining  the interest rate
for any Borrowing of Loans for any Interest Period, shall  promptly notify the
Borrower and the Banks thereof.

            1.09  Interest  Periods.  (a)  At the  time  the Borrower  gives a
Notice of Borrowing  or Notice of Conversion  in respect of the  making of, or
conversion into, a Borrowing of  Eurodollar Loans (in the case of  the initial
Interest Period applicable thereto) or prior to 12:00 Noon (New  York time) on
the  third  Business  Day  prior  to the  expiration  of  an  Interest  Period
applicable to  a Borrowing of  Eurodollar Loans,  it shall have  the right  to
elect  by giving the Administrative Agent written notice (or telephonic notice
promptly  confirmed  in writing)  of the  Interest  Period applicable  to such
Borrowing, which  Interest Period shall, at  the option of the  Borrower, be a
one, three  or six  month period.   Notwithstanding  anything to the  contrary
contained above:

           (i)  the initial  Interest Period  for any Borrowing  of Eurodollar
      Loans shall commence on  the date of such Borrowing  (including the date
      of any conversion from a Borrowing of Base Rate Loans) and each Interest
      Period occurring thereafter in respect of  such Borrowing shall commence
      on the day on which the next preceding Interest Period expires;

          (ii)  if any Interest Period begins on a  day for which there is  no
      numerically corresponding day in the  calendar month at the end  of such
      Interest Period, such Interest Period shall end on the last Business Day
      of such calendar month;

         (iii)  if any Interest  Period would otherwise expire on a  day which
      is not a  Business Day, such  Interest Period shall  expire on the  next
      succeeding  Business Day,  provided  that if  any Interest  Period would
      otherwise expire on a  day which is not a  Business Day but is a  day of
      the month after which no further Business Day occurs in such month, such
      Interest Period shall expire on the next preceding Business Day;

          (iv)  no Interest Period shall extend beyond the Maturity Date; 

           (v)  no  Interest Period  with respect  to  any Borrowing  of Loans
      under the Facility may be elected that would extend beyond any date upon
      which a Scheduled Commitment Reduction is required to be made in respect
      of  the Facility  if,  after  giving effect  to  the selection  of  such
      Interest Period, the  aggregate principal amount of  Loans maintained as
      Eurodollar Loans under the  Facility with Interest Periods  ending after
      such  date would exceed  the aggregate principal amount  of Loans of the
      Facility  permitted to  be outstanding  after such  Scheduled Commitment
      Reduction; 

          (vi)  no Interest Period  may be elected at any  time when a Default
      or Event of Default is then in existence if the  Administrative Agent or
      the Required  Banks have determined  that such an election  at such time
      would be disadvantageous to the Banks; and

         (vii)  no more than six Interest Periods of one month may be selected
      by the Borrower in any calendar year.

            (b)  If upon the  expiration of any Interest  Period, the Borrower
has failed to (or may not) elect a new Interest Period to be applicable to the
respective Borrowing of Eurodollar Loans as provided above, the Borrower shall
be deemed  to have  elected a  one month Interest  Period for  such Borrowing,
provided that if the Borrower  may not elect an Interest Period,  the Borrower
will be  deemed to have elected to convert  such Borrowing into a Borrowing of
Base Rate Loans  effective as of the expiration date  of such current Interest
Period.

           1.10  Increased Costs, Illegality, etc.  (a)  In the event that (x)
in the  case of clause (i) below, the Administrative  Agent or (y) in the case
of  clauses  (ii) and  (iii)  below, any  Bank  shall  have determined  (which
determination  shall,  absent  manifest error,  be  final  and  conclusive and
binding upon all parties hereto):

           (i)  on  any date  for  determining  the Eurodollar  Rate  for  any
      Interest Period that, by reason of any changes arising after the date of
      this Agreement  affecting the interbank Eurodollar  market, adequate and
      fair means do not exist for ascertaining the applicable interest rate on
      the basis provided for in the definition of Eurodollar Rate; or

          (ii)  at any  time, that such  Bank shall incur  increased costs  or
      reductions in the amounts received  or receivable hereunder with respect
      to any Eurodollar Loans  (other than any increased cost  or reduction in
      the amount received  or receivable resulting from the imposition of or a
      change  in the rate or basis of taxes or similar charges) because of (x)
      any change since  the date  of this  Agreement in  any appli-cable  law,
      governmental   rule,  regulation,   guideline  or   order  (or   in  the
      interpretation or administration thereof  and including the introduction
      of any new  law or  governmental rule, regulation,  guideline or  order)
      (such as, for example, but not  limited to, a change in official reserve
      requirements,  but, in  all  events, excluding  reserves required  under
      Regulation D to the extent included in the computation of the Eurodollar
      Rate)  and/or (y) other circumstances  occurring after the  date of this
      Agreement and affecting the interbank Eurodollar market; or

         (iii)  at any time, that the making or continuance of any  Eurodollar
      Loan has become unlawful by  compliance by such Bank in good  faith with
      any  law, governmental  rule, regulation,  guideline (or  would conflict
      with  any such  governmental rule,  regulation, guideline  or order  not
      having the  force of law but  with which such Bank  customarily complies
      even though the failure to comply therewith would not be unlawful);

then, and  in any such  event, such Bank (or  the Administrative Agent  in the
case of  clause (i) above) shall (x) on such  date and (y) within ten Business
Days of  the  date on  which  such event  no longer  exists,  give notice  (by
telephone  confirmed in  writing) to  the Borrower  and to  the Administrative
Agent  of  such determination  (which  notice the  Administrative  Agent shall
promptly transmit to each of the other  Banks).  Thereafter (x) in the case of
clause (i)  above, Eurodollar Loans  shall no longer  be available until  such
time as the Administrative Agent notifies the Borrower and the  Banks that the
circumstances giving rise to such notice by the Administrative Agent no longer
exist,  and  any Notice  of Borrowing  or Notice  of  Conversion given  by the
Borrower with  respect to Eurodollar  Loans which have  not yet  been incurred
shall be  deemed rescinded by  the Borrower,  (y) in the  case of clause  (ii)
above,  the  Borrower  shall,  subject  to  Section  1.12(b)  (to  the  extent
applicable), pay to such  Bank, upon written demand therefor,  such additional
amounts  (in the  form of  an  increased rate  of, or  a  different method  of
calculating, interest or otherwise as  such Bank in its sole discretion  shall
determine) as shall  be required to  compensate such Bank  for such  increased
costs  or reductions in amounts  receivable hereunder (a  written notice as to
the  additional  amounts  owed  to  such  Bank,  showing  the  basis  for  the
calculation  thereof, submitted  to the  Borrower by  such Bank  shall, absent
manifest error, be final  and conclusive and binding upon all  parties hereto)
and (z) in the  case of clause (iii) above, the Borrower shall take one of the
actions  specified in  Section 1.10(b)  as  promptly as  possible and,  in any
event, within the time period required by law.

            (b)  At  any  time that  any Eurodollar  Loan  is affected  by the
circumstances described in Section 1.10(a)(ii) or (iii), the Borrower may (and
in the case  of a Eurodollar  Loan affected pursuant to  Section 1.10(a)(iii),
the  Borrower shall) either (i) if the  affected Eurodollar Loan is then being
made   pursuant  to  a  Borrowing,   cancel  said  Borrowing   by  giving  the
Administrative Agent telephonic notice (confirmed promptly in writing) thereof
on the same date that the Borrower was notified by a Bank pursuant  to Section
1.10(a)(ii) or  (iii),  or  (ii)  if the  affected  Eurodollar  Loan  is  then
outstanding, upon at least  three Business Days' notice to  the Administrative
Agent,  require the affected Bank to convert  each such Eurodollar Loan into a
Base Rate Loan, provided that  if more than one Bank is affected  at any time,
then all  affected Banks must  be treated  the same pursuant  to this  Section
1.10(b).

            (c)  If any Bank shall have determined that after the date of this
Agreement,  the adoption  or  effectiveness of  any  applicable law,  rule  or
regulation regarding capital adequacy, or any change therein, or any change in
the interpretation  or administration  thereof by any  governmental authority,
central   bank  or  comparable  agency  charged  with  the  interpretation  or
administration  thereof, or compliance by such Bank with any request or direc-
tive regarding  capital adequacy (whether or  not having the force  of law but
with which  such Bank customarily complies  even though the failure  to comply
therewith  would  not be  unlawful)  of any  such authority,  central  bank or
comparable agency, has or would have the effect of reducing the rate of return
on such Bank's capital or assets as  a consequence of its commitments or obli-
gations hereunder  to a level below  that which such Bank  could have achieved
but for  such  adoption,  effectiveness,  change or  compliance  (taking  into
consideration such  Bank's policies  with respect to  capital adequacy),  then
from time to time,  within 15 days after demand  by such Bank (with a  copy to
the  Administrative Agent), the Borrower shall, subject to Section 1.12(b) (to
the extent  applicable), pay to such Bank such additional amount or amounts as
will compensate such Bank for such reduction.  Each Bank,  upon determining in
good faith that  any additional amounts will be payable  pursuant to this Sec-
tion 1.10(c), will give  prompt written notice thereof to the  Borrower, which
notice  shall set  forth  the basis  of  the  calculation of  such  additional
amounts, although  the failure to  give any such  notice shall not  release or
diminish  any of the Borrower's obligations to pay additional amounts pursuant
to this Section 1.10(c) upon the subsequent receipt of such notice.

            1.11  Compensation. The Borrower shall compensate each  Bank, upon
its written request  (which request shall  set forth the basis  for requesting
such  compensation),  for  all  reasonable losses,  expenses  and  liabilities
(including, without  limitation, any  loss, expense  or liability  incurred by
reason of the liquidation or reemployment  of deposits or other funds required
by such Bank to fund its Eurodollar Loans but excluding in  any event the loss
of anticipated profits) which  such Bank may sustain:   (i) if for  any reason
(other than a default by such Bank or the Administrative Agent) a Borrowing of
Eurodollar  Loans does not occur  on a date specified  therefor in a Notice of
Borrowing or Notice of Conversion (whether or not withdrawn by the Borrower or
deemed  withdrawn  pursuant  to  Section  1.10(a));  (ii)  if  any prepayment,
repayment or conversion of any of  its Eurodollar Loans (including as a result
of Section 1.10 or  the last paragraph of Section 9) occurs on a date which is
not the  last day  of  an Interest  Period applicable  thereto;  (iii) if  any
prepayment of any of its Eurodollar Loans is not made on any date specified in
a notice of prepayment given by the Borrower; or  (iv) as a consequence of (x)
any other default by the Borrower to repay its Eurodollar  Loans when required
by the terms  of this Agreement  or (y) an  election made pursuant to  Section
1.10(b).

            1.12  Change of Lending  Office;  Limitation on  Indemnities.  (a)
Each Bank agrees  that, upon the occurrence  of any event  giving rise to  the
operation of Section 1.10(a)(ii) or (iii), 1.10(c), 2.05  or 4.04 with respect
to such  Bank, it will, if  requested by the Borrower,  use reasonable efforts
(subject to overall policy  considerations of such Bank) to  designate another
lending office for any Loan, Letters of Credit or Commitments affected by such
event, provided that such designation is made on such terms that such Bank and
its  lending office suffer no economic, legal or regulatory disadvantage, with
the object of  avoiding the consequence of the event giving rise to the opera-
tion  of  any such  Section.   Nothing in  this Section  1.12 shall  affect or
postpone any of the obligations of the Borrower or the right of any  Bank pro-
vided in Section 1.10, 2.05 or 4.04.

            (b)  Notwithstanding anything in  this Agreement to  the contrary,
to  the extent any notice required  by Section 1.10, 2.05 or  4.04 is given by
any Bank more than 90 days after such Bank obtained, or reasonably should have
obtained, knowledge  of  the  occurrence  of  the event  giving  rise  to  the
additional costs of the type described in such Section, such Bank shall not be
entitled  to compensation under  Section 1.10,  2.05 or  4.04 for  any amounts
incurred or accruing prior to the giving of such notice to the Borrower.

            1.13  Replacement of Banks. (x)  Upon the occurrence  of any event
giving rise to the operation of Section 1.10(a)(ii) or (iii), 1.10(c), 2.05 or
4.04  with respect  to any  Bank which results  in such  Bank charging  to the
Borrower increased  costs in excess  of those being  generally charged  by the
other Banks or such Bank becoming incapable of making Eurodollar Loans, (y) if
a Bank becomes a Defaulting  Bank and/or (z) as provided in  Section 12.12(b),
in the case of  a refusal by a Bank  to consent to a proposed  change, waiver,
discharge  or  termination  with respect  to  this  Agreement  which has  been
approved  by the  Required Banks,  the Borrower  shall have  the right,  if no
Default  or Event of Default then exists,  to replace such Bank (the "Replaced
Bank")  with one or more  other Eligible Transferee  or Transferees reasonably
acceptable  to  the Administrative  Agent,  none  of which  Transferees  shall
constitute  a Defaulting Bank at  the time of  such replacement (collectively,
the "Replacement Bank"),  provided that  (i) at  the time  of any  replacement
pursuant to  this Section 1.13, the  Replacement Bank shall enter  into one or
more Assignment and  Assumption Agreements pursuant  to Section 12.04(b)  (and
with all  fees payable pursuant  to said Section  12.04(b) to  be paid by  the
Replacement Bank) pursuant to  which the Replacement Bank shall acquire all of
the Commitments and  outstanding Loans of, and in each  case participations in
Letters  of Credit by,  the Replaced Bank and,  in connection therewith, shall
pay to (x) the  Replaced Bank in respect thereof an amount equal to the sum of
(A) an amount equal to the principal of, and all accrued interest on, all out-
standing  Loans of  the  Replaced Bank,  (B)  an amount  equal  to all  Unpaid
Drawings that  have been funded by (and not reimbursed to) such Replaced Bank,
together  with all then unpaid interest with  respect thereto at such time and
(C) an amount equal to all accrued, but theretofore unpaid, Fees  owing to the
Replaced Bank pursuant to Section 3.01, and (y) the Letter of Credit Issuer an
amount equal to such Replaced  Bank's Percentage of any Unpaid  Drawing (which
at such time  remains an  Unpaid Drawing) to  the extent  such amount was  not
theretofore funded  by such  Replaced Bank,  and (ii)  all obligations  of the
Borrower owing to the  Replaced Bank (other than those  specifically described
in clause  (i) above  in respect  of which the  assignment purchase  price has
been, or is concurrently being, paid)  shall be paid in full to  such Replaced
Bank concurrently with such replacement.  Upon the execution of the respective
Assignment  and Assumption Agreements, the  payment of amounts  referred to in
clauses  (i) and  (ii) above  and, if  so requested  by the  Replacement Bank,
delivery  to the  Replacement Bank  of a  Note executed  by the  Borrower, the
Replacement Bank  shall become a  Bank hereunder and  the Replaced Bank  shall
cease to constitute a  Bank hereunder, except with respect  to indemnification
provisions applicable to the  Replaced Bank under this Agreement,  which shall
survive as to such Replaced Bank as described herein. 

            SECTION 2.  Letters of Credit.

            2.01  Letters of  Credit.  (a)  Subject to and upon  the terms and
conditions  herein set  forth, the  Borrower may  request that  the Letter  of
Credit  Issuer at  any time  and from  time to  time on  or after  the Initial
Borrowing  Date  and  prior to  the  Business  Day  immediately preceding  the
Maturity Date issue,  for the account  of the Borrower  and in support of  L/C
Supportable  Obligations, and  subject to  and upon  the terms  and conditions
herein set forth,  the Letter of  Credit Issuer agrees to  issue from time  to
time, irrevocable standby letters of credit denominated in U.S. Dollars or any
other  currency acceptable  to  the Letter  of Credit  Issuer (subject  to the
provisions of  Section 2.01(b)) and  in such  form as may  be approved by  the
Letter of  Credit Issuer (each  such standby  letter of credit,  a "Letter  of
Credit" and  collectively, the  "Letters of  Credit").   Annex III contains  a
description  of all  letters  of  credit  issued  under  the  Existing  Credit
Agreement prior to the Effective Date and which will remain outstanding on the
Effective Date.   Each such letter of  credit, including any extension thereof
(each  an "Existing Letter of  Credit") shall constitute  a "Letter of Credit"
for all purposes of this Agreement and  shall be deemed issued for purposes of
Sections 2.04 and 3.01 on the Effective Date.

            (b)  Whenever the  Letter  of Credit  Issuer  issues a  Letter  of
Credit  in  a  currency  other  than  U.S.  Dollars,  the  Letter  of   Credit
Outstandings  relating to  such  Letter  of  Credit  at  such  time  shall  be
calculated on the basis of the U.S. Dollar Equivalent of  the Stated Amount of
such Letter  of Credit.  Any  U.S. Dollar Equivalent established  according to
the  preceding  sentence  shall  remain  in  effect  until such  date  as  the
calculation of the U.S. Dollar Equivalent determined as above, if made on such
date, would yield a U.S. Dollar Equivalent which varies by  greater than 10.0%
from the U.S. Dollar Equivalent  then in effect, at  which time the Letter  of
Credit  Outstandings  shall be  adjusted to  reflect  the current  U.S. Dollar
Equivalent  of  the  Stated Amount  of  such  Letter  of  Credit.   Subsequent
adjustments shall then be made on any date on which the current calculation of
the U.S. Dollar Equivalent would  yield a result which varies by  greater than
10.0% from the U.S. Dollar Equivalent then in effect.

            (c)  Notwithstanding the foregoing, (i)  no Letter of Credit shall
be issued,  the Stated Amount  of which,  when added to  the Letter of  Credit
Outstandings (exclusive of  Unpaid Drawings which  are repaid on the  date of,
and prior to the issuance of,  the respective Letter of Credit) at  such time,
would  exceed  either  (x) $30,000,000  or  (y)  when added  to  the aggregate
principal amount of all  Loans made by Non-Defaulting Banks  then outstanding,
the Adjusted  Total Commitment at  such time; and  (ii) each Letter  of Credit
shall  have  an  expiry  date  occurring  not  later  than  the  Business  Day
immediately preceding the Maturity Date.

            2.02  Letter of Credit Requests; Request for Issuance of Letter of
Credit.  (a)  Whenever  it  desires that  a Letter  of  Credit be  issued, the
Borrower  shall give the Letter of  Credit Issuer written notice (including by
way of telecopier) in the form of Exhibit C prior to 1:00 P.M. (New York time)
at least  three Business Days (or such shorter period  as may be acceptable to
the Letter  of Credit Issuer)  prior to the  proposed date of  issuance (which
shall be a Business Day) (each a "Letter of  Credit Request"), which Letter of
Credit  Request shall include  any documents that the  Letter of Credit Issuer
customarily requires in  connection therewith.   The Letter  of Credit  Issuer
shall promptly notify each Bank of each Letter of Credit Request.

            (b)  The  Letter of  Credit  Issuer shall,  on  the date  of  each
issuance of a Letter of Credit by it, give  each Bank and the Borrower written
notice of the issuance of such Letter of Credit.

            2.03  Agreement  to  Repay  Letter  of  Credit Payments.  (a)  The
Borrower hereby agrees  to reimburse  the Letter of  Credit Issuer, by  making
payment at  the Payment Office,  for any payment  or disbursement made  by the
Letter  of Credit Issuer under any Letter  of Credit (each such amount so paid
or  disbursed until reimbursed, an "Unpaid Drawing") immediately after, and in
any  event on  the date  on which the  Borrower is  notified by  the Letter of
Credit Issuer of such payment  or disbursement with interest on the  amount so
paid or disbursed by the Letter of Credit Issuer, to the extent not reimbursed
prior  to  1:00  P.M.  (New  York  time)  on  the  date  of  such  payment  or
disbursement,  from and  including  the date  paid  or  disbursed to  but  not
including the date  the Letter of  Credit Issuer is  reimbursed therefor at  a
rate  per annum which shall  be the Applicable Base  Rate Margin plus the Base
Rate as in effect on the date of such notice of payment or disbursements (plus
an additional 2% per annum  if not reimbursed by the third Business  Day after
the date of such notice of payment  or disbursement), such interest also to be
payable on demand.

            (b)  The  Borrower's  obligation  under   this  Section  2.03   to
reimburse  the Letter  of  Credit  Issuer  with  respect  to  Unpaid  Drawings
(including,  in   each  case,   interest  thereon)   shall  be  absolute   and
unconditional  under any and all circumstances and irrespective of any setoff,
counterclaim  or defense to  payment which the  Borrower may have  or have had
against   the  Letter  of  Credit  Issuer  or  any  Bank,  including,  without
limitation, any defense  based upon the failure of any  drawing under a Letter
of Credit to  conform to  the terms of  the Letter of  Credit (other than  the
failure of  the  Letter of  Credit  Issuer  to determine  that  any  documents
required to be  delivered under such Letter of Credit  have been delivered and
that  they substantially  comply on their  face with the  requirements of such
Letter  of Credit) or any non-application or misapplication by the beneficiary
of the  proceeds of such drawing;  provided, however, that the  Borrower shall
not be  obligated to reimburse  the Letter of  Credit Issuer for  any wrongful
payment made by  the Letter  of Credit Issuer  under a Letter  of Credit as  a
result  of  acts   or  omissions  constituting  willful  misconduct  or  gross
negligence on the part of the Letter of Credit Issuer.

            2.04  Letter of Credit Participations.  (a)  Immediately  upon the
issuance by the Letter of Credit Issuer of any Letter of Credit, the Letter of
Credit Issuer shall be deemed to have sold and transferred to each other Bank,
and each  such Bank  (each a  "Participant") shall be  deemed irrevocably  and
unconditionally  to  have purchased  and received  from  the Letter  of Credit
Issuer, without recourse or warranty, an undivided interest and participation,
to the  extent of such Bank's  Adjusted Percentage, in such  Letter of Credit,
each  substitute  letter  of credit,  each  drawing  made  thereunder and  the
obligations  of  the  Borrower  under  this  Agreement  with  respect  thereto
(although  the  Letter  of  Credit  Fee  shall  be  payable  directly  to  the
Administrative  Agent for  the account  of the  Banks as  provided in  Section
3.01(b) and the Participants shall have no right to receive any portion of any
Facing  Fees) and any security therefor  or guaranty pertaining thereto.  Upon
any change in the Commitments or Adjusted Percentages of the Banks pursuant to
Section  12.04(b)  or upon  a Bank  Default, it  is  hereby agreed  that, with
respect to all outstanding  Letters of Credit and Unpaid Drawings, there shall
be an automatic adjustment to the participations pursuant to this Section 2.04
to reflect  the new Adjusted Percentages of the assigning and assignee Bank or
of all Banks, as the case may be. 

            (b)  In determining whether to pay under any Letter of Credit, the
Letter  of  Credit Issuer  shall  not  have  any  obligation relative  to  the
Participants  other  than  to determine  that  any  documents  required to  be
delivered  under such  Letter  of Credit  have  been delivered  and that  they
substantially  comply on their  face with the  requirements of such  Letter of
Credit.   Any action  taken or  omitted to  be taken by  the Letter  of Credit
Issuer under or in connection with any  Letter of Credit, if taken or  omitted
in the absence of gross negligence or willful misconduct, shall not create for
the Letter of Credit Issuer any resulting liability to the Participants.

            (c)  In  the event that the Letter of Credit Issuer makes any pay-
ment under  any Letter of  Credit and the  Borrower shall not  have reimbursed
such amount  in  full to  the  Letter of  Credit  Issuer pursuant  to  Section
2.03(a), the Letter of Credit Issuer shall promptly notify each Participant of
such failure, and each  Participant shall promptly and unconditionally  pay to
the  Letter  of  Credit Issuer,  the  amount  of  such Participant's  Adjusted
Percentage of  such payment in U.S.  Dollars and in same  day funds; provided,
however, that no Participant shall be obligated to pay to the Letter of Credit
Issuer  its Adjusted Percentage of  such unreimbursed amount  for any wrongful
payment  made by the  Letter of Credit  Issuer under  a Letter of  Credit as a
result  of  acts  or  omissions  constituting  willful  misconduct   or  gross
negligence on the part of the Letter of Credit  Issuer.  If the Administrative
Agent so notifies any Participant  required to fund an Unpaid Drawing  under a
Letter of Credit prior to 12:00 Noon (New York time) on any Business Day, such
Participant  shall  make  available  to  the  Letter  of  Credit  Issuer  such
Participant's  Adjusted Percentage  of  the amount  of  such payment  on  such
Business Day in same day funds.   If and to the extent such  Participant shall
not have so made its Adjusted Percentage of the amount of such Unpaid  Drawing
available to  the Letter of Credit  Issuer, such Participant agrees  to pay to
the Letter of  Credit Issuer, forthwith on  demand such amount, together  with
interest thereon,  for each day from  such date until the date  such amount is
paid to the Letter of  Credit Issuer at the overnight Federal  Funds Effective
Rate.   The failure  of any Participant  to make  available to  the Letter  of
Credit  Issuer its Adjusted Percentage of any  Unpaid Drawing under any Letter
of Credit shall not relieve any  other Participant of its obligation hereunder
to make  available to the Letter  of Credit Issuer its  Adjusted Percentage of
any payment  under any  Letter of  Credit on the  date required,  as specified
above, but  no Participant shall be  responsible for the failure  of any other
Participant  to make  available to  the  Letter of  Credit  Issuer such  other
Participant's Adjusted Percentage of any such payment.

            (d)  Whenever  the Letter of Credit Issuer receives a payment of a
reimbursement obligation as to which the Administrative Agent has received for
the account  of the Letter of Credit Issuer any payments from the Participants
pursuant to clause  (c) above, the Letter  of Credit Issuer shall  pay to each
Participant which has paid its Adjusted  Percentage thereof, in Dollars and in
same day funds, an amount  equal to such Participant's Adjusted Percentage  of
the  principal amount thereof and  interest thereon accruing  at the overnight
Federal   Funds  Effective   Rate  after   the  purchase  of   the  respective
participations. 

            (e)  The  obligations of the Participants to  make payments to the
Letter of Credit Issuer with respect to Letters of Credit shall be irrevocable
and  not  subject  to counterclaim,  set-off  or other  defense  or  any other
qualification or exception  whatsoever (provided that no  Participant shall be
required  to make payments resulting from the  Letter of Credit Issuer's gross
negligence or  willful misconduct) and  shall be  made in accordance  with the
terms  and conditions  of this  Agreement under all  circumstances, including,
without limitation, any of the following circumstances:

           (i)  any  lack of validity or  enforceability of this  Agreement or
      any of the other Credit Documents;

          (ii)  the existence  of any claim,  set-off, defense  or other right
      which the Borrower may have at any time against a beneficiary named in a
      Letter of Credit, any transferee of any Letter of Credit  (or any Person
      for whom any such  transferee may be acting), the  Administrative Agent,
      any Bank or other Person, whether in connection with this Agreement, any
      Letter of Credit, the transactions contemplated  herein or any unrelated
      transactions (including any underlying transaction between the  Borrower
      and the beneficiary named in any such Letter of Credit);

         (iii)  any draft,  certificate or other document  presented under the
      Letter of Credit  proving to be  forged, fraudulent, or  invalid in  any
      respect  or  any statement  therein being  untrue  or inaccurate  in any
      respect;

          (iv)  the  surrender   or  impairment   of  any  security   for  the
      performance  or observance  of any  of the  terms of  any of  the Credit
      Documents; or

           (v)  the occurrence of any Default or Event of Default.

            2.05  Increased  Costs.  If  at any  time  after the  date  of the
Agreement,  the adoption  or  effectiveness of  any  applicable law,  rule  or
regulation,  or any  change therein,  or any change  in the  interpretation or
administration  thereof  by  any   governmental  authority,  central  bank  or
comparable agency  charged with the interpretation  or administration thereof,
or compliance by the Letter of  Credit Issuer or any Bank with any  request or
directive (whether or  not having the force  of law but  with which such  Bank
customarily complies even though the failure to comply therewith would not  be
unlawful)  by  any such  authority, central  bank  or comparable  agency shall
either (i) impose,  modify or  make applicable any  reserve, deposit,  capital
adequacy or similar requirement against Letters of Credit issued by the Letter
of Credit Issuer or such Bank's participation therein, or (ii) shall impose on
the Letter  of Credit Issuer or  any Bank any other  conditions affecting this
Agreement,  any Letter of Credit or such Bank's participation therein; and the
result of any of the foregoing is to increase the cost to the Letter of Credit
Issuer or such Bank of issuing, maintaining or participating in  any Letter of
Credit, or  to reduce  the amount  of any  sum received or  receivable by  the
Letter of  Credit Issuer or such Bank hereunder (other than any increased cost
or reduction in  the amount received or receivable  resulting from the imposi-
tion of or  a change in the rate or basis  of taxes or similar charges), then,
upon  demand to the Borrower  by the Letter  of Credit Issuer or  such Bank (a
copy of which notice shall be sent by the Letter of Credit Issuer or such Bank
to the Administrative Agent),  the Borrower shall, subject to  Section 1.11(b)
(to the extent  applicable), pay to the Letter  of Credit Issuer or  such Bank
such  additional amount  or amounts  as will compensate  the Letter  of Credit
Issuer  or such  Bank for  such increased  cost or  reduction.   A certificate
submitted to the Borrower by the Letter of Credit  Issuer or such Bank, as the
case may be (a copy of which certificate shall be sent by the Letter of Credit
Issuer or such Bank to the  Administrative Agent), setting forth the basis for
the determination of such additional amount or amounts necessary to compensate
the Letter of Credit Issuer or such Bank  as aforesaid shall be conclusive and
binding on the Borrower absent manifest error, although the failure to deliver
any  such certificate  shall not  release or  diminish any  of the  Borrower's
obligations to pay additional amounts  pursuant to this Section 2.05 upon  the
subsequent receipt thereof.

            2.06  Indemnities.   The Borrower  hereby agrees to  reimburse and
indemnify the Letter of Credit Issuer for and against any and all liabilities,
obligations,  losses, damages,  penalties, claims, actions,  judgments, suits,
costs,  expenses or disbursements  of whatsoever kind  or nature  which may be
imposed  on, asserted against  or incurred by  the Letter of  Credit Issuer in
performing its respective duties in any way relating  to or arising out of its
issuance of Letters of Credit; provided  that the Borrower shall not be liable
for any portion of such liabilities, obligations,  losses, damages, penalties,
actions, judgments, suits, costs, expenses or disbursements resulting from the
Letter of  Credit Issuer's gross  negligence or  willful misconduct.   To  the
extent  the Letter of  Credit Issuer is  not indemnified by  the Borrower, the
Participants  will reimburse  and indemnify  the Letter  of Credit  Issuer, in
proportion  to their respective "percentages" of the Total Commitment, for and
against  any and  all  liabilities, obligations,  losses, damages,  penalties,
claims,  actions,  judgments,  suits,  costs,  expenses  or  disbursements  of
whatsoever  kind  or nature  which  may be  imposed  on,  asserted against  or
incurred by the Letter of Credit Issuer in performing its respective duties in
any way  relating to  or arising  out of  its issuance of  Letters of  Credit;
provided that no Participants shall be liable for any portion of such liabili-
ties, obligations,  losses,  damages, penalties,  actions,  judgments,  suits,
costs,  expenses or disbursements resulting from the Letter of Credit Issuer's
gross negligence or willful misconduct.

            SECTION 3.  Fees; Commitments.

            3.01  Fees.  (a)  The Borrower agrees to pay to the Administrative
Agent  a  commitment commission  ("Commitment  Commission") pro  rata  for the
account  of each  Non-Defaulting Bank  for the period  from and  including the
Effective Date to, but not  including, the date the Total Commitment  has been
terminated, which Commitment Commission shall be equal to the amount set forth
below as determined  by Holdings' Leverage Ratio,  as calculated for the  last
day of the fiscal quarter  last ended, computed at such rate for  each day, on
the daily amount  of such Bank's Unutilized Commitment;  provided that, in the
event a  change in the  Commitment Commission is  made, such change  shall not
become effective until  the date  on which the  Administrative Agent  receives
written notice from the Borrower indicating that such change is warranted:

      0.25% per annum   If the Leverage Ratio is equal to or less than 0.25 to
                        1.00

      0.35% per annum   If the Leverage Ratio is greater than 0.25 to 1.00.

Such Commitment  Commission shall be due  and payable in arrears  on the first
day of each  January, April, July and  October and on the date  upon which the
Total Commitment is terminated.

            (b)  The Borrower  agrees to pay  to the Administrative  Agent for
the  account  of each  Non-Defaulting  Bank pro  rata  on the  basis  of their
respective Adjusted Percentages,  a fee in  respect of each  Letter of  Credit
(the "Letter  of  Credit Fee")  computed at  a  rate per  annum  equal to  the
Applicable Eurodollar Margin then in effect or the daily Stated Amount of such
Letter of  Credit.   Accrued Letter of  Credit Fees shall  be due  and payable
quarterly in arrears on the first day of each January, April, July and October
of each  year and on the date after the  Total Commitment is terminated and no
Letters of Credit remain outstanding.

            (c)  The Borrower agrees  to pay to the Letter of  Credit Issuer a
fee  in respect  of  each Letter  of Credit  issued by  it (the  "Facing Fee")
computed at the rate of 1/8 of 1% per annum on the daily Stated Amount of such
Letter of Credit.   Accrued Facing Fees shall be due  and payable quarterly in
arrears on the first day of each January, April, July and October of each year
and on  the date after the  Total Commitment is  terminated and no  Letters of
Credit remain outstanding.

            (d)  The Borrower agrees to  pay directly to the Letter  of Credit
Issuer upon  request the amount  of any  charges or expenses  incurred by  the
Letter  of Credit  Issuer in  connection with  any confirmation of  Letters of
Credit by  local banks  requested by  the Borrower or  any beneficiary  of any
Letter of Credit.

            (e)  The Borrower shall pay to the Administrative Agent (x) on the
Initial Borrowing  Date for  its own  account and/or for  distribution to  the
Banks such  Fees as  heretofore  agreed in  writing by  the  Borrower and  the
Administrative Agent and (y) for its own account such other fees as  agreed to
in writing between the Borrower and the Administrative Agent, when and as due.

            (f)  All  computations of  Fees shall  be made in  accordance with
Section 12.07(b).

            3.02  Voluntary  Reduction of  Commitments.  Upon at  least thirty
Days' prior written notice (or telephonic notice confirmed in  writing) to the
Administrative Agent  at its  Notice Office  (which notice the  Administrative
Agent shall promptly  transmit to each of the Banks),  the Borrower shall have
the right, without premium  or penalty, to terminate  or partially reduce  the
Total Unutilized  Commitment, provided  that  (w) any  such termination  shall
apply to proportionately and  permanently reduce the Commitment of  each Bank,
(x) no such reduction shall reduce any Non-Defaulting Bank's Commitment  to an
amount that is  less than the sum  of (A) the  outstanding Loans of such  Bank
plus (B) such Bank's Adjusted Percentage of Letter of Credit Outstandings, (y)
any  partial reduction pursuant to this Section 3.02 shall be in the amount of
at least $5,000,000  and (z)  any such  reduction shall  reduce the  remaining
Scheduled Commitment Reductions pro  rata based on the then  remaining amounts
of Scheduled Commitment Reductions.

            3.03  Mandatory Adjustments of  Commitments, etc.  (a)  The  Total
Commitment  shall terminate  on the  earlier of  (i) the  Maturity Date,  (ii)
November 30,  1996, unless the Effective  Date has occurred on  or before such
date and (iii) unless the Required  Banks otherwise consent, the date on which
any Change of Control occurs.

            (b)  In  addition  to any  other  mandatory  commitment reductions
pursuant to  this  Section 3.03,  on  each date  set  forth below,  the  Total
Commitment  shall be permanently reduced by the amount set forth opposite such
date (each such  reduction, as same may be further  reduced in accordance with
Sections 3.02 and 3.03(d), a "Scheduled Commitment Reduction"):

                     Date                          Amount

             May 13, 1999                      $25,000,000
             November 13, 1999                 $25,000,000
             May 13, 2000                      $25,000,000
             November 13, 2000                 $25,000,000
             May 13, 2001                      $25,000,000
             Maturity Date                    Remaining amount
                                                  of Total
                                                 Commitment

            (c)  In addition  to  any other  mandatory  commitment  reductions
pursuant  to this  Section 3.03,  on the  Business Day  following the  date of
receipt thereof  by the Borrower  and/or any of  its Subsidiaries of  the Cash
Proceeds  from any Collateral Disposition, the Total Commitment then in effect
shall be  permanently reduced by an amount equal to the Total Commitment as in
effect on the Initial Borrowing Date multiplied by the percentage set forth on
Annex IV hereto adjacent to the name of the Mortgaged Rig (other than the Jack
Bates,  the Paul B. Loyd, Jr. and the  Henry Goodrich) which is the subject of
such Collateral Disposition under the heading "Percentage Reduction."  

            (d)  Notwithstanding  anything to  the contrary  contained herein,
and in addition to any other mandatory commitment reductions pursuant to  this
Section  3.03, in  the case of  any Collateral Disposition  involving the Jack
Bates, the Total Commitment then  in effect shall be reduced by  the lesser of
the Total Commitment then in effect or $100,000,000.

            (e)  In  addition to  any  other mandatory  commitment  reductions
pursuant to this Section 3.03, in the case of any sale, disposition or loss by
Arcade Drilling AS ("Arcade") with  respect to the Henry Goodrich or  the Paul
B. Loyd,  Jr. (collectively, the "Arcade  Rigs") the Total Commitment  then in
effect  shall be reduced by the lesser  of the Total Commitment then in effect
or $100,000,000 per rig.

            (f)  In  addition to  any  other mandatory  commitment  reductions
pursuant  to this Section 3.03, on June 30,  1997 the Total Commitment as then
in  effect shall  be  reduced by  $15,000,000  unless the  documentation  with
respect to the  C.E. Thornton  required pursuant to  Section 7.12(a) has  been
provided.

            (g)  Each  reduction  of the  Total  Commitment  pursuant to  this
Section 3.03 shall apply proportionately to the Commitment of each  Bank.  Any
reduction to the Total Commitment pursuant  to this Section 3.03 shall  reduce
the  remaining Schedule  Commitment  Reductions pro  rata  based on  the  then
remaining amounts of Scheduled Commitment Reductions.  

            SECTION 4.  Payments.

            4.01  Voluntary Prepayments.  The Borrower shall have the right to
prepay  Loans in whole  or in part,  without premium or penalty,  from time to
time on the following  terms and conditions:  (i) the Borrower  shall give the
Administrative  Agent at  the  Payment Office  written  notice (or  telephonic
notice promptly confirmed in writing)  of its intent to prepay the  Loans, the
amount  of such prepayment and (in the  case of Eurodollar Loans) the specific
Borrowing or Borrowings pursuant to which made, which notice shall be given by
the Borrower at least five Business Days prior to the date of such  prepayment
of Loans, which  notice shall  promptly be transmitted  by the  Administrative
Agent to  each of  the Banks; (ii) each  partial prepayment  of any  Borrowing
shall  be in  an aggregate  principal amount  of at  least $1,000,000  and, if
greater,  in  an  integral multiple  of  $100,000,  provided  that no  partial
prepayment of Eurodollar  Loans made pursuant to a Borrowing  shall reduce the
aggregate principal amount of the Loans outstanding pursuant to such Borrowing
to an amount  less than the  Minimum Borrowing Amount; (iii)  Eurodollar Loans
may  only be  prepaid pursuant  to this Section  4.01 on  the last  day of the
Interest Period applicable thereto; and (iv) each prepayment in respect of any
Loans  made pursuant to a Borrowing shall be  applied pro rata among the Banks
which made such Loans, provided that at  the Borrower's election in connection
with any  prepayment of Loans  pursuant to this Section  4.01, such prepayment
shall not be applied to any Loans of a Defaulting Bank. 

            4.02  Mandatory Prepayments.

            (A)  Requirements: 

            (a)  (i) If  on  any date  the  sum of  the  aggregate outstanding
principal amount  of Loans  made by  Non-Defaulting Banks  and  the Letter  of
Credit Outstandings exceeds the  Adjusted Total Commitment as then  in effect,
the Borrower shall repay on such date the principal of Loans of Non-Defaulting
Banks,  in an aggregate amount equal to such  excess.  If, after giving effect
to  the  repayment  of all  outstanding  Loans  of  Non-Defaulting Banks,  the
aggregate amount of Letter  of Credit Outstandings exceeds the  Adjusted Total
Commitment then in effect,  the Borrower shall pay to the Administrative Agent
an amount  in cash and/or  Cash Equivalents equal  to such  excess (up to  the
aggregate amount  of the Letter of  Credit Outstandings at such  time) and the
Administrative Agent shall hold  such payment as security for  the obligations
of the  Borrower hereunder  pursuant  to a  cash  collateral agreement  to  be
entered  into   in  form   and  substance   reasonably  satisfactory   to  the
Administrative  Agent   (which  shall  permit  certain   investments  in  Cash
Equivalents  satisfactory to the Administrative Agent,  until the proceeds are
applied to the secured obligations).

            (ii)  If on any date the aggregate outstanding principal amount of
the Loans  made by a Defaulting Bank exceeds the Commitment of such Defaulting
Bank, the Borrower shall repay the principal of Loans of  such Defaulting Bank
in an amount equal to such excess.

            (b)  Notwithstanding  anything to the contrary contained elsewhere
in  this Agreement, all then outstanding Loans  shall be repaid in full on the
Maturity Date.

            (c)  On the date  on which  any Change of  Control occurs,  unless
otherwise  agreed by the Required  Banks, the outstanding  principal amount of
the Loans, if any, shall become due and payable in full.

            (B)  Application:

            With respect to each prepayment of Loans required by Section 4.02,
the Borrower may designate the Types of  Loans which are to be prepaid and the
specific Borrowing or  Borrowings pursuant  to which made,  provided that  (i)
Eurodollar Loans  may only be repaid  if no Base Rate  Loans of Non-Defaulting
Banks  remain outstanding;  (ii) if  any prepayment  of Eurodollar  Loans made
pursuant  to  a  single Borrowing  shall  reduce  the  outstanding Loans  made
pursuant to such Borrowing to an amount less than the Minimum Borrowing Amount
for  such Borrowing, such Borrowing  shall be immediately  converted into Base
Rate Loans;  and (iii)  each prepayment  of any  Loans made  by Non-Defaulting
Banks  pursuant to  a  Borrowing shall  be  applied pro  rata  among the  Non-
Defaulting Banks which made  such Loans.  In  the absence of a  designation by
the  Borrower as described in the preceding sentence, the Administrative Agent
shall, subject to the above, make such designation in its sole discretion with
a view,  but no  obligation, to  minimize breakage  costs owing under  Section
1.11.  Notwithstanding the foregoing provisions of this Section 4.02(B), if at
any time the mandatory prepayment  of Loans pursuant to Section 4.02(A)  above
would result,  after giving effect to  the procedures set forth  above, in the
Borrower incurring breakage costs under Section 1.11 as a result of Eurodollar
Loans  being  prepaid  other than  on  the  last  day  of an  Interest  Period
applicable thereto (the "Affected Eurodollar Loans"), then the Borrower may in
its sole  discretion initially deposit a  portion (up to 100%)  of the amounts
that otherwise  would have been  paid in  respect of  the Affected  Eurodollar
Loans with  the Administrative Agent (which deposit must be equal in amount to
the  amount of  the Affected Eurodollar  Loans not immediately  prepaid) to be
held as security  for the obligations of the Borrower  hereunder pursuant to a
cash collateral agreement to be entered  into in form and substance reasonably
satisfactory to the  Administrative Agent  and shall  provide for  investments
satisfactory  to the  Administrative Agent  and the  Borrower, with  such cash
collateral to be directly  applied upon the first occurrence  (or occurrences)
thereafter of  the last day of  an Interest Period applicable  to the relevant
Loans that  are Eurodollar Loans  (or such earlier date  or dates as  shall be
requested  by the Borrower),  to repay an  aggregate principal  amount of such
Loans equal to the Affected Eurodollar Loans not initially prepaid pursuant to
this  sentence.   Notwithstanding anything  to the  contrary contained  in the
immediately  preceding  sentence, all  amounts  deposited  as cash  collateral
pursuant to  the immediately  preceding sentence  shall be  held for  the sole
benefit of the Banks whose Loans would otherwise have been immediately prepaid
with  the  amounts  deposited  and  upon  the taking  of  any  action  by  the
Administrative  Agent  or the  Banks pursuant  to  the remedial  provisions of
Section 9,  any amounts  held  as cash  collateral  pursuant to  this  Section
4.02(B) shall, subject to  the requirements of applicable law,  be immediately
applied to the Loans.

            4.03  Method  and   Place  of   Payment.    Except   as  otherwise
specifically  provided herein, all payments under this Agreement shall be made
to  the Administrative  Agent for the  ratable (based  on its  pro rata share)
account of  the Banks  entitled thereto,  not later than  1:00 P.M.  (New York
time) on the date  when due and shall be  made in immediately available  funds
and in lawful money of the United States of America at the Payment  Office, it
being understood that  written notice  by the Borrower  to the  Administrative
Agent to  make a  payment from  the funds  in  the Borrower's  account at  the
Payment Office  shall constitute the making  of such payment to  the extent of
such funds held in such account.  Any payments under this Agreement  which are
made later than 1:00 P.M. (New York time) shall be deemed to have been made on
the  next succeeding Business Day.  Whenever  any payment to be made hereunder
shall be stated to be  due on a day which is not a  Business Day, the due date
thereof  shall be  extended to  the  next succeeding  Business  Day and,  with
respect  to payments  of  principal, interest  shall  be payable  during  such
extension  at  the  applicable  rate  in  effect  immediately  prior  to  such
extension.

            4.04  Net  Payments.  (a)  All  payments   made  by  the  Borrower
hereunder or under any Note will be made without setoff, counterclaim or other
defense.  Except  as provided in  Section 4.04(b), all  such payments will  be
made free and clear of, and  without deduction or withholding for, any present
or future taxes, levies,  imposts, duties, fees, assessments or  other charges
of  whatever nature  now or hereafter  imposed by  any jurisdiction  or by any
political subdivision or taxing  authority thereof or therein with  respect to
such  payments (but  excluding, except  as provided  in the  second succeeding
sentence, any tax imposed on or measured by the net income or net profits of a
Bank  pursuant to  the laws of  the jurisdiction  in which it  is organized or
managed and controlled or  the jurisdiction in  which the principal office  or
applicable lending office of such  Bank is located or any  subdivision thereof
or  therein) and all interest,  penalties or similar  liabilities with respect
thereto  (all   such  non-excluded  taxes,  levies,   imposts,  duties,  fees,
assessments or other charges being  referred to collectively as "Taxes").   If
any Taxes are so levied or imposed, the Borrower agrees to pay the full amount
of  such Taxes, and  such additional amounts,  if any, as may  be necessary so
that  every payment of all amounts due under this Agreement or under any Note,
after withholding  or deduction for  or on account of  any Taxes, will  not be
less than the amount provided for herein or in such Note.  If any  amounts are
payable  by the  Borrower  in  respect  of Taxes  pursuant  to  the  preceding
sentence, the Borrower agrees to reimburse each Bank, upon the written request
of  such Bank,  for taxes  imposed on  or measured  by the  net income  or net
profits of such  Bank pursuant to the  laws of the  jurisdiction in which  the
principal office or applicable lending office of such Bank is located or under
the laws  of  any  political  subdivision or  taxing  authority  of  any  such
jurisdiction in which  the principal  office or applicable  lending office  of
such Bank  is located  and for any  withholding of  taxes as  such Bank  shall
determine  are payable  by, or  withheld from,  such Bank  in respect  of such
amounts so  paid  to or  on behalf  of  such Bank  pursuant  to the  preceding
sentence and  in respect of  any amounts  paid to  or on behalf  of such  Bank
pursuant to this  sentence.  The  Borrower will furnish to  the Administrative
Agent  within 45 days after the date the  payment of any Taxes is due pursuant
to applicable law  certified copies of tax receipts evidencing such payment by
the Borrower.   The Borrower agrees to indemnify and  hold harmless each Bank,
and reimburse such Bank upon its written request, for the amount of any  Taxes
so levied or imposed and paid by such Bank.

            (b)  Each Bank that is not a United States person (as such term is
defined in Section 7701(a)(30) of the Code) agrees to deliver  to the Borrower
and  the Administrative Agent on or prior to the date of this Agreement, or in
the case of a Bank that is an assignee or transferee of an interest under this
Agreement pursuant to  Section 1.13 or  12.04 (unless the respective  Bank was
already a Bank hereunder immediately prior to such assignment or transfer), on
the date  of such assignment  or transfer to such  Bank, (i) two  accurate and
complete original signed copies of Internal  Revenue Service Form 4224 or 1001
(or  successor  forms) certifying  to such  Bank's  entitlement to  a complete
exemption from  United States withholding  tax with respect to  payments to be
made under this  Agreement and under any  Note, or (ii) if  the Bank is not  a
"bank"  within the  meaning of  Section 881(c)(3)(A)  of  the Code  and cannot
deliver  either Internal Revenue Service Form 1001  or 4224 pursuant to clause
(i) above, (x) a certificate substantially in the form of Exhibit  D (any such
certificate,  a "Section  4.04(b)(ii) Certificate")  and (y) two  accurate and
complete  original  signed copies  of Internal  Revenue  Service Form  W-8 (or
successor  form) certifying to such Bank's entitlement to a complete exemption
from United States withholding tax with  respect to payments of interest to be
made under this Agreement  and under any Note.  In addition,  each Bank agrees
that from time to time after the date of  this Agreement, when a lapse in time
or  change in  circumstances renders  the previous  certification obsolete  or
inaccurate in  any material respect, it  will deliver to the  Borrower and the
Administrative Agent two new  accurate and complete original signed  copies of
Internal  Revenue  Service Form  4224  or  1001, or  Form  W-8  and a  Section
4.04(b)(ii)  Certificate, as the case  may be, and such  other forms as may be
required  in order to confirm or  establish the entitlement of  such Bank to a
continued  exemption from or reduction  in United States  withholding tax with
respect to payments under this Agreement and any Note, or it shall immediately
notify  the Borrower and the Administrative Agent  of its inability to deliver
any  such Form  or  Certificate.   Notwithstanding  anything to  the  contrary
contained  in Section  4.04(a),  but  subject  to  Section  12.04(b)  and  the
immediately  succeeding sentence, (x) the  Borrower shall be  entitled, to the
extent it is required to do so by law, to deduct or withhold income or similar
taxes imposed  by the  United States (or  any political subdivision  or taxing
authority thereof or  therein) from  interest, fees or  other amounts  payable
hereunder for the account of any Bank  which is not a United States person (as
such term  is defined  in Section  7701(a)(30) of the  Code) for  U.S. Federal
income tax  purposes to  the extent  that such  Bank has  not provided  to the
Borrower  U.S.  Internal  Revenue  Service  Forms that  establish  a  complete
exemption from such deduction or withholding and (y) the Borrower shall not be
obligated pursuant to  Section 4.04(a) hereof to gross-up payments  to be made
to a Bank in respect of income  or similar taxes imposed by the United  States
if (I) such Bank has not provided to the Borrower the Internal Revenue Service
Forms required to be provided to the Borrower pursuant to this Section 4.04(b)
or (II) in the case of a payment, other  than interest, to a Bank described in
clause (ii) above, to the  extent that such Forms do not  establish a complete
exemption from withholding  of such  taxes.  Notwithstanding  anything to  the
contrary contained in the preceding sentence or elsewhere in this Section 4.04
and  except as  set forth  in  Section 12.04(b),  the Borrower  agrees to  pay
additional amounts  and to indemnify each Bank in the manner set forth in Sec-
tion 4.04(a) (without regard to the identity of the jurisdiction requiring the
deduction or withholding) in respect of any amounts deducted or withheld by it
as described  in the immediately preceding sentence as a result of any changes
after the  date of this Agreement in  any applicable law, treaty, governmental
rule, regulation, guideline or order, or in the interpretation thereof, relat-
ing to  the deducting or withholding of income or similar Taxes, provided such
Bank shall provide to the Borrower and the Administrative Agent any reasonably
available  applicable IRS tax form  (reasonably similar in  its simplicity and
lack of detail to IRS Form 1001) necessary or appropriate for the exemption or
reduction in the rate of such U.S. federal withholding tax.

            (c)  The provisions  of  this Section  4.04  shall be  subject  to
Section 1.12(b) (to the extent applicable).

            SECTION 5.  Conditions Precedent.  The  obligation of the Banks to
make each Loan hereunder, and the obligation of the Letter of Credit Issuer to
issue Letters of Credit hereunder, is subject, at the time of each such Credit
Event (except as otherwise hereinafter indicated), to the satisfaction of each
of the following conditions:

            5.01  Execution  of   Agreement.  On  or  prior  to   the  Initial
Borrowing Date,  (i) the  Effective Date  shall have occurred  as provided  in
Section  12.10 and (ii) there shall have  been delivered to the Administrative
Agent  for  the account  of each  Bank the  appropriate  Note executed  by the
Borrower, and in the amount, maturity and as otherwise provided herein.

            5.02  No Default; Representations and Warranties.  At the time  of
each Credit  Event and also after giving effect thereto, (i) there shall exist
no Default  or Event of  Default and  (ii) all representations  and warranties
contained herein or in the other Credit Documents in effect at such time shall
be true and  correct in all material  respects with the same effect  as though
such representations and  warranties had been  made on and as  of the date  of
such  Credit Event  (except  to  the  extent  that  such  representations  and
warranties expressly  relate to an earlier  date, in which case  they shall be
true and correct in all material respects as of such earlier date).

            5.03  Officer's  Certificate.  On the Initial  Borrowing Date, the
Administrative  Agent shall have received a certificate dated such date signed
by the President or  any Vice President of the Borrower stating that there has
been no  Material Adverse Change in the financial condition of the Borrower or
of Holdings and its Subsidiaries taken as  a whole since the date of the  last
audited  financial  statements provided  by Holdings  or  the Borrower  to the
Administrative  Agent and that all  of the applicable  conditions set forth in
Sections 5.02, 5.08(a) and 5.18 exist as of such date.

            5.04  Opinions of  Counsel.  On  the Initial  Borrowing Date,  the
Administrative  Agent   shall  have   received  opinions,  addressed   to  the
Administrative  Agent and each  of the Banks  and dated the  Initial Borrowing
Date, from  (i) Wayne  Hillin, Esq.,  General Counsel to  the Credit  Parties,
which  opinion shall cover the matters contained  in Exhibit E-1, (ii) White &
Case, special counsel to  the Administrative Agent, which opinion  shall cover
the matters contained in Exhibit E-2 and (iii) from local counsel satisfactory
to the Administrative  Agent as  the Administrative Agent  may request,  which
opinions shall cover the perfection of the security interests granted pursuant
to the Security  Documents and such other matters incident to the transactions
contemplated herein as  the Administrative  Agent may  reasonably request  and
shall be in form and substance satisfactory to the Administrative Agent.

            5.05  Corporate Proceedings.  (a)   On the Initial Borrowing Date,
the  Administrative Agent  shall  have  received  from  each  Credit  Party  a
certificate, dated the Initial  Borrowing Date, signed by the President or any
Vice-President or other appropriate representative of such Credit Party in the
form  of Exhibit F  with appropriate  insertions and deletions,  together with
copies of the certificate  of formation, the by-laws, or  other organizational
documents   of  such  Credit  Party   and  the  resolutions,   or  such  other
administrative  approval, of such Credit Party referred to in such certificate
and  all of  the  foregoing (including  each  such certificate  of  formation,
certificate of incorporation  and by-laws) shall be reasonably satisfactory to
the Administrative Agent.

            (b)  On the  Initial Borrowing Date, all corporate  and legal pro-
ceedings  and all  instruments and  agreements in  connection with  the trans-
actions contemplated by this Agreement and the other Credit Documents shall be
reasonably satisfactory in form and substance to the Administrative Agent, and
the Administrative Agent shall have received all information and copies of all
certificates, documents  and papers, including good  standing certificates and
any other records of corporate proceedings and governmental approvals, if any,
which the Administrative  Agent may  have reasonably  requested in  connection
therewith,  such documents and papers,  where appropriate, to  be certified by
proper corporate or governmental authorities.

            5.06  Existing  Indebtedness  Agreements.    On or  prior  to  the
Initial Borrowing Date,  there shall have been delivered to  the Banks copies,
certified as true  and correct by  an appropriate officer  of the Borrower  or
Holdings, as  the case  may be,  of all agreements  evidencing or  relating to
Existing Indebtedness  (the "Existing Indebtedness Agreements"),  all of which
shall be in form and substance satisfactory to the Administrative Agent.

            5.07  Adverse Change, etc.  From December  31, 1995 to the Initial
Borrowing  Date, nothing shall  have occurred (and  neither the  Banks nor the
Administrative Agent shall  have become aware  of any facts or  conditions not
previously known) which the  Administrative Agent or the Required  Banks shall
determine (a) has, or is reasonably likely to have, a  material adverse effect
on the rights or remedies  of the Banks or the Administrative Agent, or on the
ability of Holdings, the Borrower or any Subsidiary Guarantor to perform their
respective obligations to them, or (b) has, or is reasonably likely to have, a
Material Adverse Effect.

            5.08  Litigation.  On the Initial  Borrowing Date, there  shall be
no actions,  suits or proceedings  pending or  threatened (a) with  respect to
this Agreement or any  other Credit Document or the  transactions contemplated
hereby or thereby or (b) which the Administrative Agent or  the Required Banks
shall determine is reasonably likely to  (i) have a Material Adverse Effect or
(ii) have  a material adverse  effect on the rights  or remedies of  the Banks
hereunder or  under any other Credit  Document or on the  ability of Holdings,
the  Borrower  or  any  Subsidiary  Guarantor  to  perform   their  respective
obligations to the Banks hereunder or under any other Credit Document.

            5.09  Approvals.  On  the  Initial  Borrowing Date,  all  material
necessary  governmental  and  third  party approvals  in  connection  with the
transactions contemplated by  the Credit Documents  and otherwise referred  to
herein  or therein  shall have  been obtained  and remain  in effect,  and all
applicable waiting periods shall  have expired without any action  being taken
by  any competent authority which  restrains or prevents  such transactions or
imposes,  in  the   reasonable  judgment   of  the  Required   Banks  or   the
Administrative Agent,  materially adverse conditions upon  the consummation of
such transactions.

            5.10   Fees.   On the Initial  Borrowing Date, the  Borrower shall
have  paid to  the Administrative Agent  and the  Banks all  Fees and expenses
agreed upon by such parties to be paid on or prior to such date.

            5.11  Security  Agreement.   On  the Initial  Borrowing Date  each
Mortgagor shall  have  duly  authorized,  executed and  delivered  a  Security
Agreement and Assignment of Earnings and  Insurances in the form of Exhibit G,
together with  such changes (or with such other documents) as may be requested
by the Collateral Agent in connection with local law (as  modified, amended or
supplemented from  time  to time  in  accordance with  the terms  thereof  and
hereof, the  "Security  Agreement") covering  all  of the  Security  Agreement
Collateral  (except  Security  Agreement   Collateral  relating  to  the  C.E.
Thornton,  which  Security  Agreement  Collateral shall  be  assigned  to  the
Collateral Agent in accordance with Section 7.12(a)), together with:

           (i)  executed copies  of  Financing Statements  (Form UCC-1  and/or
      UCC-3) or  appropriate local equivalent  in appropriate form  for filing
      under  the UCC or appropriate  local equivalent of  each jurisdiction as
      may  be  necessary to  perfect the  security  interests purported  to be
      created by the Security Agreement;

          (ii)  certified copies  of Requests for Information  or Copies (Form
      UCC-11),  or equivalent  reports,  each of  a  recent date  listing  all
      effective  financing  statements  that  name Reading &  Bates  Offshore,
      Limited as debtor and that are filed in the jurisdictions referred to in
      clause  (i) above,  together with  copies of  such financing  statements
      (none of which shall cover the Collateral except (x)  those with respect
      to  which appropriate  termination  statements executed  by the  secured
      lender thereunder have been delivered to the Collateral Agent and (y) to
      the extent evidencing Permitted Liens); and

         (iii)  evidence  that all other  recordings and  filings of,  or with
      respect to, the  Security Agreement, and  all other actions,  as may  be
      necessary  or,  in the  opinion of  the  Collateral Agent,  desirable to
      perfect  the security interests intended  to be created  by the Security
      Agreement have been completed  (it being understood and agreed  that UCC
      financing statements  and termination statements  shall be filed  in the
      appropriate  governmental office  within three  Business Days  after the
      Initial Borrowing Date); 

and the Security Agreement and such other documents shall be in full force and
effect.

            5.12  Subsidiary Guaranty.   On  the Initial Borrowing  Date, each
Subsidiary  of the  Borrower which  owns a Mortgaged  Rig (each  a "Subsidiary
Guarantor") shall  have duly authorized,  executed and delivered  a Subsidiary
Guaranty in the form of  Exhibit H (as modified, amended or  supplemented from
time to time in accordance with the terms hereof and  thereof, the "Subsidiary
Guaranty"), and the Subsidiary Guaranty shall be in full force and effect.

            5.13  Mortgages.  (a)  On   the   Initial  Borrowing   Date,  each
Mortgagor  shall have  duly authorized,  executed and delivered  the following
document  or  documents to  which  it  is a  party  (as  modified, amended  or
supplemented from  time  to time  in  accordance with  the terms  thereof  and
hereof, the "Mortgages"):

           (i)  with  respect to  the US  Rigs, substantially  in the  form of
      Exhibit  I-1 (as amended, modified or supplemented  from time to time in
      accordance with the terms hereof and thereof, the "US Mortgage");

          (ii)  with respect to the Panamanian Rigs, substantially in the form
      of Exhibit I-2 (as  amended, modified or supplemented from  time to time
      in  accordance  with  the  terms hereof  and  thereof,  the  "Panamanian
      Mortgage");

         (iii)  with  respect to the Australian Rig, substantially in the form
      of Exhibit I-3  (as amended, modified or supplemented  from time to time
      in  accordance  with  the  terms  hereof and  thereof,  the  "Australian
      Mortgage"); and

            (b)  On  the  Initial  Borrowing  Date,  all  actions   necessary,
desirable or otherwise reasonably requested by the Collateral Agent to provide
the  Collateral Agent with a perfected first priority security interest in all
Collateral purported to be covered by the Mortgages shall have been taken.

            5.14  Evidence of Lien, etc.   On the Initial Borrowing  Date, the
Administrative  Agent  shall  have  received  (i) United  States  Coast  Guard
certificates  of  ownership  showing  (or  confirmation  updating   previously
reviewed certificates and indicating) that the US Rig Jack Bates is registered
in the  ownership of the Borrower, the  US Rig W.D. Kent  is registered in the
ownership  of Reading  & Bates  Exploration Co.,  the US  Rig D.R.  Stewart is
registered  in the ownership  of Reading &  Bates Exploration Co.,  the US Rig
F.G. McClintock is  registered in the  ownership of Reading &  Bates Offshore,
Limited,  the US  Rig Randolph  Yost  is registered  in the  ownership of  the
Borrower,  the  US Rig  J.T.  Angel  is registered  in  the  ownership of  the
Borrower, the US  Rig Roger W.  Mowell is registered  in the ownership of  the
Borrower, the US  Rig Harvey H. Ward is registered in the ownership of HRB Rig
Corporation, and  the US Rig George H. Galloway is registered in the ownership
of  Reading  & Bates  Offshore,  Limited,  each subject  to  the  Lien of  the
respective  US  Mortgage  and free  of  all  other  Liens  of record,  (ii)  a
certificate  of the Director General of the  Public Registry of Panama showing
(or  confirmation updating  previously  reviewed certificates  and indicating)
that the  Panamanian  Rig Charley  Graves is  registered in  the ownership  of
Reading and Bates Borneo Drilling Co., Ltd., the Panamanian Rig J.W. McLean is
registered  in the  ownership of the  Borrower, and  the Panamanian  Rig 41 is
registered in the ownership of the  Borrower, each subject to the Lien  of the
respective Panamanian Mortgage and free of all other Liens of record and (iii)
a certificate of  the Shipping  Registration Office of  Australia showing  (or
confirmation updating  previously reviewed certificates  indicating) that  the
Australian Rig Ron Tappmeyer is registered in the ownership of Reading & Bates
(A) Pty. Ltd., and subject to the Lien of the Australian  Mortgage and free of
all other Liens of record.

            5.15  Rig Reports; Drilling  Contracts.   (a) On or  prior to  the
Initial Borrowing Date, the Administrative Agent shall have received:  

           (i)  evidence  satisfactory  to  the  Collateral  Agent  that  each
      Mortgaged  Rig is classified in the highest  class available for rigs of
      its  age and type with the American  Bureau of Shipping, Inc. or another
      internationally recognized classification society  reasonably acceptable
      to the Collateral  Agent, free of any material  outstanding requirements
      or recommendations; and

          (ii)  reports  from  Approved Shipbrokers  setting forth  the Market
      Value of each Mortgaged Rig, which combined  value of all Mortgaged Rigs
      shall not be less than $480 million.

            (b)  On the Initial Borrowing Date, the Administrative Agent shall
have received  true and  correct copies  of all  current and pending  drilling
contracts relating to the Mortgaged Rigs and the Arcade Rigs.

            5.16  Insurance  Report.   On or  prior to  the Initial  Borrowing
Date,  the Administrative  Agent shall  have received  a detailed  report from
Soriero  &  Company, Inc.,  or another  firm  of independent  marine insurance
brokers acceptable to  the Administrative  Agent and the  Required Banks  with
respect to the insurance  maintained by the Mortgagors in connection  with the
Mortgaged Rigs and by Arcade  with respect to the Arcade Rigs, together with a
certificate  from such broker certifying  that such insurances  (i) are placed
with  such  insurance companies  and/or  underwriters  and/or  clubs, in  such
amounts, against such risks, and in such form, as are normally insured against
by  similarly situated  insureds and  as are  necessary or  advisable for  the
protection  of the Security  Trustee or the Administrative  Agent, as the case
may be, as mortgagee and (ii) conform with the requirements of the Mortgages.

            5.17  Pledge Agreement.   On the Initial  Borrowing Date, Holdings
shall have duly  authorized, executed and delivered a Pledge  Agreement in the
form of Exhibit J (as modified, supplemented or amended from time to time, the
"Pledge  Agreement")  and shall  have delivered  to  the Collateral  Agent, as
Pledgee,  all the Pledged  Stock referred to  therein then owned  by Holdings,
together  with  executed and  undated stock  powers  relating to  such Pledged
Stock.

            5.18  Refinancing; Existing Credit Agreement.  (a)  On or prior to
the  Initial  Borrowing  Date or  concurrently  with  the  Credit Events  then
occurring, the total  commitments under the  Existing Credit Agreements  shall
have been  terminated, and  all loans and  notes issued thereunder  shall have
been repaid  in full, together  with interest  thereon, all letters  of credit
issued  thereunder shall  have been  terminated or  assumed hereunder  and all
other amounts owing thereunder shall have been repaid in full and the Existing
Credit  Agreements shall have  been terminated and  be of no  further force or
effect except  for continuing  indemnification  obligations and  reimbursement
obligations under letters of  credit assumed hereunder.  The Borrower shall be
entitled  to utilize  this Facility  to terminate  the commitments,  repay the
loans  and terminate any letters  of credit (not  otherwise assumed hereunder)
under the Existing  Credit Agreements.   The Administrative  Agent shall  have
received evidence in form,  scope and substance reasonably satisfactory  to it
that the matters set forth in this Section 5.18(a) have been satisfied on such
date.

            (b)  On or  prior to  the Initial Borrowing  Date or  concurrently
with the Credit Events then occurring, the creditors under the Existing Credit
Agreements shall have terminated and released all security interests and Liens
on the  assets owned by,  Holdings, the  Borrower or any  of its  Subsidiaries
granted in connection with the Existing Credit Agreements.  The Administrative
Agent shall have received such releases  of security interests in and Liens on
the assets  owned by Holdings, the  Borrower and its Subsidiaries  as may have
been reasonably requested by the Administrative Agent, which releases shall be
in form  and substance reasonably  satisfactory to  the Administrative  Agent.
Without limiting the  foregoing, there  shall have been  delivered (i)  proper
termination  statements (Form UCC-3 or  the appropriate equivalent) for filing
under the UCC of each jurisdiction  where a financing statement (Form UCC-1 or
the appropriate equivalent) was  filed with respect to Holdings,  the Borrower
or any of its Subsidiaries in  connection with the security interests  created
with  respect to the Existing  Credit Agreement and  the documentation related
thereto, (ii) terminations or assignments of any security interest in, or Lien
on, any patents, trademarks, copyrights, or similar interests of Holdings, the
Borrower or any of its Subsidiaries on which filings have  been made and (iii)
terminations  of all mortgages, leasehold mortgages and deeds of trust created
with respect to property of Holdings, the Borrower or any of its Subsidiaries,
in each case  to secure the obligations under the  Existing Credit Agreements,
all  of which shall  be in form  and substance reasonably  satisfactory to the
Administrative Agent.

            5.19  Compliance Certificate.  On  the Initial Borrowing Date, and
subject  to Section  5.18  above, the  Borrower shall  have  delivered to  the
Administrative Agent a compliance certificate in  the form of Exhibit L to the
Existing Credit Agreement indicating that the Borrower is current with respect
to  its obligations under  the Existing Credit  Agreement and is  otherwise in
compliance with all the terms and conditions thereof.

            The  acceptance  of  the  benefits  of  each  Credit  Event  shall
constitute  a representation and  warranty by Holding and  the Borrower to the
Administrative  Agent and  each  of  the  Banks that  all  of  the  conditions
specified above which are applicable in accordance with their express terms at
the time  of such acceptance exist as of that  time.  All of the certificates,
legal opinions and other documents  and papers referred to in this  Section 5,
unless  otherwise specified, shall be delivered to the Administrative Agent at
its Notice  Office for the  account of each of  the Banks and,  except for the
Notes, in sufficient counterparts or copies for each of the Banks and shall be
satisfactory in form and substance to the Administrative Agent.

            SECTION 6.  Representations, Warranties and  Agreements.  In order
to  induce the Banks  to enter into this  Agreement and to  make the Loans and
issue and/or participate  in Letters of  Credit provided for  herein, each  of
Holdings and the Borrower  makes the following representations and  warranties
to, and agreements with, the  Banks, all of which shall survive  the execution
and delivery of this Agreement and the making of the Loans (with the making of
each Credit Event thereafter  being deemed to constitute a  representation and
warranty that the  matters specified in this Section 6 are true and correct in
all material respects on and as  of the date of each such Credit  Event unless
such representation and  warranty expressly indicates that it is being made as
of any specific date, in which  case such representations and warranties shall
be true and correct in all material respects as of such date):

            6.01  Corporate Status.  Each Credit Party (i) is a duly organized
and validly existing corporation in good standing under the laws of the juris-
diction of its  organization and has the corporate power  and authority to own
its property and assets and to  transact the business in which it  is engaged,
except  in such case  where the  failure to be  so duly  organized and validly
existing in good  standing and to have such corporate  power and authority (x)
is  not reasonably  likely to have  a Material  Adverse Effect and  (y) is not
reasonably likely to have a material adverse effect on the  rights or remedies
of the Banks  or on the  ability of Holdings, the  Borrower or any  Subsidiary
Guarantor to perform  its obligations to  them hereunder  and under the  other
Credit Documents to which  it is a party, and  (ii) has duly qualified  and is
authorized to do  business and is in good standing  in all jurisdictions where
it is  required to be so  qualified and where  the failure to be  so qualified
would have a Material Adverse Effect.

            6.02  Corporate Power  and Authority.  Each  Credit Party has  the
corporate power and authority to execute, deliver and carry out  the terms and
provisions of the Credit  Documents to which it is  a party and has  taken all
necessary  corporate   action  to   authorize  the  execution,   delivery  and
performance of the Credit Documents to which it is a party.  Each Credit Party
has duly executed  and delivered each Credit  Document to which it is  a party
and  each  such  Credit Document  constitutes  the  legal,  valid and  binding
obligation  of such Credit Party enforceable against such Person in accordance
with its  terms, except to the  extent that the enforceability  thereof may be
limited by  applicable bankruptcy,  insolvency, reorganization,  moratorium or
similar laws generally affecting creditors' rights and by equitable principles
(regardless of whether enforcement is sought in equity or at law).

            6.03  No   Violation.  Neither   the   execution,   delivery   and
performance by any Credit Party of the Credit Documents to which it is a party
nor compliance with the terms and  provisions thereof, nor the consummation of
the  transactions  contemplated therein  (i)  will  contravene any  applicable
provision  of any law, statute,  rule, regulation, order,  writ, injunction or
decree of any court  or governmental instrumentality  of the United States  or
any State  thereof, the Republic of  Panama or Australia, (ii)  will result in
any breach  of any of  the terms, covenants,  conditions or provisions  of, or
constitute a default under, or (other than pursuant to the Security Documents)
result in  the creation  or  imposition of  (or the  obligation  to create  or
impose) any  Lien upon any of the property or assets of Holdings, the Borrower
or any of their respective Subsidiaries pursuant to the terms of, any material
indenture, mortgage, deed  of trust,  agreement or other  instrument to  which
Holdings,  the Borrower or any of their  respective Subsidiaries is a party or
by which  it or  any of its  property or assets  are bound  or to which  it is
subject   or  (iii)  will  violate   any  provision  of   the  Certificate  of
Incorporation  or By-Laws of Holdings, the Borrower or any of their respective
Subsidiaries.

            6.04  Litigation.  There  are no  actions,  suits  or  proceedings
pending or,  to the best  of Holding's or the  Borrower's knowledge threatened
with respect to Holdings, the Borrower or any of their respective Subsidiaries
(i)  that are  likely to  have  a Material  Adverse Effect  or  (ii) that  are
reasonably likely to have a material  adverse effect on the rights or remedies
of the Banks or on the ability of any Credit Party to perform  its obligations
to them hereunder and under the other Credit Documents to which it is a party.

            6.05  Use  of Proceeds; Margin  Regulations.  (a)  The proceeds of
all  Loans shall be utilized to provide  for the general corporate purposes of
Holdings, the Borrower and their respective Subsidiaries.

            (b)  Neither the making of any Loan hereunder, nor the  use of the
proceeds  thereof,  will violate  or be  inconsistent  with the  provisions of
Regulation G,  T, U  or X  of the Board  of Governors  of the  Federal Reserve
System and no  part of the proceeds  of any Loan will  be used to purchase  or
carry any Margin  Stock in violation of Regulation  U or to extend  credit for
the purpose of purchasing or carrying any Margin Stock.

            6.06  Governmental  Approvals.  Except  for the  orders, consents,
approvals,  licenses,  authorizations, validations,  recordings, registrations
and exemptions that have already been duly made or obtained and remain in full
force  and effect,  no  order, consent,  approval, license,  authorization, or
validation  of, or  filing  (other than  the  filing of  Form UCC-1  Financing
Statements or the appropriate  equivalents, which such filing, if  this repre-
sentation is being  made more than ten days after  the Initial Borrowing Date,
has  been made), recording or registration with,  or exemption by, any foreign
or  domestic  governmental or  public body  or  authority, or  any subdivision
thereof, is  required to authorize or  is required in connection  with (i) the
execution,  delivery  and  performance of  any  Credit  Document  or (ii)  the
legality, validity, binding effect or enforceability of any Credit Document.

            6.07  Investment  Company Act.  None of  Holdings, the Borrower or
any of their respective  Subsidiaries is an "investment company" or  a company
"controlled"  by an "investment company," within the meaning of the Investment
Company Act of 1940, as amended.

            6.08  Public Utility Holding  Company Act.  None of Holdings,  the
Borrower or  any of their respective Subsidiaries is a "holding company," or a
"subsidiary company" of a "holding  company," or an "affiliate" of a  "holding
company" or of a "subsidiary company" of a "holding company," within the mean-
ing of the Public Utility Holding Company Act of 1935, as amended.

            6.09  True  and  Complete  Disclosure.  All   factual  information
(taken as  a whole) heretofore or contemporaneously  furnished by or on behalf
of Holdings, the Borrower  or any of their respective  Subsidiaries in writing
to the Administrative Agent or any Bank for purposes of or in connection  with
this Agreement or  any transaction contemplated herein is, and  all other such
factual information (taken as a whole) hereafter furnished by or  on behalf of
any such Person in writing to any Bank will be, true and accurate in all mate-
rial respects on the  date as of which such information  is dated or certified
and not  incomplete by omitting to  state any material fact  necessary to make
such information (taken as  a whole) not misleading  at such time in light  of
the  circumstances under which such information was provided.  The Projections
and pro forma financial information  contained in such materials are based  on
good faith estimates and assumptions believed by such Persons to be reasonable
at the time made, it being recognized by the Banks that such Projections as to
future events are not to be viewed as facts and that actual results during the
period  or  periods covered  by  any  such  Projections  may differ  from  the
projected results.   There is no fact known to Holdings  or the Borrower which
is reasonably likely  to have a  Material Adverse Effect,  which has not  been
disclosed  herein or  in  such other  documents,  certificates and  statements
furnished  to  the  Banks   for  use  in  connection  with   the  transactions
contemplated hereby.

            6.10  Financial Condition; Financial Statements; Projections.  (a)
On  and as of  the Initial Borrowing Date,  on a pro  forma basis after giving
effect  to all Indebtedness incurred,  and to be  incurred, and Liens created,
and to be created, by Holdings  and its Subsidiaries in connection  therewith,
(x) the  sum  of  the  assets,  at  a fair  valuation,  of  Holdings  and  its
Subsidiaries taken  as a  whole will  exceed its debts,  (y) Holdings  and its
Subsidiaries  taken  as a  whole will  not have  incurred  or intended  to, or
believe that they will, incur debts beyond their ability to pay such debts  as
such debts mature and (z)  Holdings and its Subsidiaries taken as a whole will
not have unreasonably small capital with which to conduct its business.  

            (b)  (i)  The  consolidated  balance  sheet of  Holdings  and  its
Subsidiaries at December 31,  1995 and the related consolidated  statements of
operations  and cash  flows of  Holdings and its  Subsidiaries for  the fiscal
year, as the  case may be, ended as of said  date, which have been examined by
Arthur Andersen  LLP, independent certified public  accountants, who delivered
an unqualified opinion in respect therewith, and (ii) the consolidated balance
sheet of  Holdings and its Subsidiaries as  of June 30, 1996,  copies of which
have  heretofore been  furnished to  each Bank,  present fairly  the financial
position of such entities at the dates of  said statements and the results for
the period  covered thereby in  accordance with GAAP  (or, in the  case of the
balance  sheet, presents a good  faith estimate of  the consolidated financial
condition of Holdings and its Subsidiaries at the date thereof), except to the
extent provided  in the notes to said financial statements and, in the case of
the June 30, 1996 statements,  subject to normal and recurring  year-end audit
adjustment.  All such  financial statements (other than the  aforesaid balance
sheet) have been  prepared in  accordance with  generally accepted  accounting
principles and practices consistently applied except to the extent provided in
the notes  to said financial statements.   Nothing has occurred since December
31, 1995 that  has had  or is  reasonably likely  to have  a Material  Adverse
Effect.

            (c)  Except as reflected in the financial statements and the notes
thereto  described in Section 6.10(b), there  were as of the Initial Borrowing
Date no liabilities  or obligations with respect to  Holdings, the Borrower or
any of their respective  Subsidiaries of a nature (whether  absolute, accrued,
contingent or otherwise and  whether or not due) which, either individually or
in aggregate,  would be material to  Holdings and its Subsidiaries  taken as a
whole,  except as incurred  subsequent to  December 31,  1995 in  the ordinary
course of business consistent with past practices.  

            (d)  On  and as  of  the  Initial  Borrowing Date,  the  financial
projections, together  with adjustments  thereto, previously delivered  to the
Administrative Agent and the Banks (the "Projections") have been prepared on a
basis  consistent with the financial statements referred to in Section 6.10(a)
(other than as set forth or presented  in such Projections), and there are  no
statements or  conclusions in any of  the Projections which are  based upon or
include information known to Holdings or the Borrower to be  misleading in any
material respect or  which fail to take into account  material information not
otherwise  disclosed  in writing  to the  Administrative  Agent and  the Banks
regarding  the matters  reported  therein.   On  the Initial  Borrowing  Date,
Holdings  and the Borrower believed  that the Projections  were reasonable and
attainable.

            6.11  Security  Interests.  On  and  after the  Initial  Borrowing
Date, each of the Security Documents creates, as security  for the Obligations
purported  to be secured thereby,  a valid and  enforceable perfected security
interest in  and Lien on all of the  Collateral subject thereto, to the extent
perfection of a security interest or Lien is governed by  Article 8 or Article
9  of the  UCC (as  defined in  the applicable  Security Documents),  the Ship
Mortgage  Act (as  defined in  the U.S.  Mortgages), or  comparable provisions
under the  laws of  the Republic of  Panama and  Australia, and subject  to no
other Liens (except that the Collateral may be subject to Permitted Liens), in
favor of the Collateral Agent or the Security Trustee, as the case may be, for
the benefit of the Banks.   No filings or recordings are required in  order to
perfect  the security interests created under any Security Document except for
filings or recordings required  in connection with any such  Security Document
which  shall  have been  made  upon  or  prior  to  (or  are  the  subject  of
arrangements,  satisfactory  to the  Administrative  Agent, for  filing  on or
promptly after the date of) the execution and delivery thereof.

            6.12  Tax  Returns and Payments.  Each  of Holdings,  the Borrower
and each of  their respective Subsidiaries  has filed all  federal income  tax
returns and  all other material tax returns, domestic and foreign, required to
be filed by it  and has paid all material taxes and  assessments payable by it
which  have become  due, other than  those not  yet delinquent  and except for
those  contested in  good faith.   Holdings,  the Borrower  and each  of their
respective Subsidiaries  has  paid, or  has  provided adequate  reserves  with
respect thereto,  in accordance with  GAAP, for the  payment of, all  federal,
state and foreign  income taxes applicable for all prior  fiscal years and for
the current fiscal year to the date hereof.

            6.13  Compliance with  ERISA.   (a) Each  Plan  is in  substantial
compliance with  ERISA and  the Code; no  Reportable Event  has occurred  with
respect to  a Plan; no Plan is insolvent or  in reorganization; no Plan has an
accumulated or waived funding  deficiency or has applied  for an extension  of
any  amortization period within  the meaning of  Section 412 of  the Code; all
contributions required to be made with respect to a Plan and a Foreign Pension
Plan  have been  timely  made;  neither  Holdings nor  the  Borrower  nor  any
Subsidiary of the Borrower  nor any ERISA Affiliate has  incurred any material
liability to or  on account of a Plan pursuant to Section 409, 502(i), 502(l),
4062, 4063,  4064, 4069, 4201,  4204 or 4212  of ERISA or  Section 401(a)(29),
4971, 4975 or 4980  of the Code or expects  to incur any liability  (including
any indirect, contingent, or  secondary liability) under any of  the foregoing
Sections with  respect to  any Plan; no  proceedings have  been instituted  to
terminate  or appoint  a trustee to  administer any Plan;  no condition exists
which presents a material risk to Holdings, the Borrower or  any Subsidiary of
the Borrower or any ERISA Affiliate of incurring a liability to or  on account
of  a Plan  pursuant to  the foregoing  provisions of  ERISA and the  Code; or
except  as would reasonably be expected to  have a Material Adverse Effect, no
lien imposed  under the Code  or ERISA on  the assets of  the Borrower  or any
Subsidiary  of the  Borrower or  any ERISA  Affiliate exists or  is reasonably
likely  to arise on account of any Plan;  and Holdings, the Borrower and their
respective  Subsidiaries do not maintain or contribute to any employee welfare
benefit plan  (as defined in Section 3(1) of ERISA) which provides benefits to
retired employees or other former employees (other than as required by Section
601 of ERISA) or any employee pension benefit plan (as defined in Section 3(2)
of ERISA) the obligations with respect to which are not properly recognized or
disclosed in such entity's consolidated financial statements and notes related
thereto.

            (b)   Each Foreign Pension Plan has been maintained in substantial
compliance with its terms and with  the requirements of any and all applicable
laws, statutes, rules, regulations  and orders and has been  maintained, where
required,  in good standing with  applicable regulatory authorities.   None of
Holdings,  the Borrower or any  of their respective  Subsidiaries has incurred
any obligation in connection  with the termination  of or withdrawal from  any
Foreign Pension Plan.

            6.14  Subsidiaries.  Annex V  lists  each Subsidiary  of  Holdings
(and the direct and indirect ownership interest of  Holdings therein), in each
case existing on the Effective Date. 

            6.15  Patents,  etc.  Holdings and  each  of its  Subsidiaries has
obtained  all  material  patents,  trademarks,  service  marks,  trade  names,
copyrights, licenses and other rights, free from burdensome restrictions, that
are  necessary for  the operation  of  their businesses  taken as  a whole  as
presently conducted.

            6.16  Pollution and Other  Regulations.  (a)  Each of Holdings and
its   Subsidiaries  is   in   substantial  compliance   with  all   applicable
Environmental  Laws  governing its  business for  which  failure to  comply is
reasonably likely to have a Material Adverse Effect, and  neither Holdings nor
any  of  its  Subsidiaries is  liable  for any  material  penalties,  fines or
forfeitures for  failure to comply with  any of the foregoing.   All licenses,
permits,  registrations or approvals required for the business of Holdings and
each of its Subsidiaries, as conducted as of the Initial Borrowing Date, under
any  Environmental  Law  have  been  secured  and  Holdings and  each  of  its
Subsidiaries  is in  substantial compliance  therewith, except  such licenses,
permits,  registrations or approvals the failure to secure or to comply there-
with is not  likely to have a  Material Adverse Effect.  Neither  Holdings nor
any of its Subsidiaries is in any respect  in noncompliance with, breach of or
default  under any  writ,  order, judgment,  injunction,  or decree  to  which
Holdings  or such Subsidiary is  a party or which  would affect the ability of
Holdings  or such Subsidiary to  operate any Real  Property, offshore drilling
rig or  other facility and no event has occurred and is continuing which, with
the passage of time or the giving  of notice or both, would constitute noncom-
pliance,  breach of  or default  thereunder, except  in each  such case,  such
noncompliance,  breaches or defaults  as are not likely  to, in the aggregate,
have a Material Adverse Effect.  There are as of the Initial Borrowing Date no
Environmental Claims  pending or, to  the best knowledge  of Holdings and  the
Borrower, threatened, against Holdings  or any of its Subsidiaries  wherein an
unfavorable decision, ruling  or finding would be reasonably likely  to have a
Material Adverse Effect.   There  are no facts,  circumstances, conditions  or
occurrences  on any  Real Property,  offshore drilling  rig or  other facility
owned or  operated by Holdings or  any of its Subsidiaries  that is reasonably
likely (i) to  form the basis of an Environmental  Claim against Holdings, any
of  its Subsidiaries  or any  Real Property,  offshore drilling  rig  or other
facility owned by Holdings or  any of its Subsidiaries, or (ii) to  cause such
Real Property,  offshore drilling rig or  other facility to be  subject to any
restrictions on  its ownership,  occupancy, use  or transferability  under any
Environmental  Law, except  in each  such case,  such Environmental  Claims or
restrictions that individually or  in the aggregate are not  reasonably likely
to have a Material Adverse Effect.

            (b)  Hazardous Materials have not at  any time been (i) generated,
used, treated  or stored on,  or transported  to or from,  any Real  Property,
offshore  drilling rig  or other  facility at  any time  owned or  operated by
Holdings or any of its Subsidiaries, or (ii) released on or from any such Real
Property, offshore  drilling rig or other facility, in each case where, to the
best  of Holdings'  or  the Borrower's  knowledge,  such occurrence  or  event
individually  or in  the aggregate  is reasonably  likely  to have  a Material
Adverse Effect.

            6.17  Properties.  (a)  Holdings and each  of its Subsidiaries has
title  to all  material  properties  owned  by  them  including  all  property
reflected in the consolidated  balance sheet of Holdings and  its Subsidiaries
as referred to in Section 6.10(b), free and clear of all Liens, other than (i)
as  referred to in the  consolidated balance sheet or  in the notes thereto or
(ii) Permitted Liens.

            (b)  Annex VI sets forth all the offshore drilling rigs and  other
vessels owned or  chartered by Holdings  and each of  its Subsidiaries on  the
Effective  Date, and identifies the registered owner, flag, official or patent
number,  as the  case may  be, the  home port,  class, location  and operating
status on the Effective  Date, and, if chartered-in by Holdings or  any of its
Subsidiaries, the name and address of the owner of such chartered-in vessel. 

            6.18  Labor Relations.  Neither Holdings  nor its Subsidiaries  is
engaged  in any  unfair labor  practice that  is reasonably  likely to  have a
Material Adverse Effect.   There  is (i)  no unfair  labor practice  complaint
pending against Holdings or any of its Subsidiaries or  threatened against any
of them,  before  the National  Labor  Relations Board,  and  no grievance  or
arbitration proceeding  arising  out of  or  under any  collective  bargaining
agreement is so pending against Holdings or any of its Subsidiaries or, to the
best of Holdings' or the Borrower's knowledge, threatened against any of them,
(ii) no strike, labor  dispute, slowdown or stoppage pending  against Holdings
or  any of its  Subsidiaries or,  to the best  of Holdings' or  the Borrower's
knowledge, threatened against Holdings or any of its Subsidiaries and (iii) no
union  representation  petition existing  with  respect  to the  employees  of
Holdings or  any of its  Subsidiaries and  no union organizing  activities are
taking place, except with respect to  any matter specified in clause (i), (ii)
or  (iii)  above, either  individually or  in the  aggregate,  such as  is not
reasonably likely to have a Material Adverse Effect.

            6.19  Existing Indebtedness.    Annex VII  sets forth  a true  and
complete list of all Indebtedness of Holdings and each of  its Subsidiaries on
the Effective  Date  and which  is  to remain  outstanding after  the  Initial
Borrowing Date  (excluding the Loans and the  Letters of Credit, the "Existing
Indebtedness"), in each  case showing the  aggregate principal amount  thereof
and the name of the respective borrower (or issuer) and any other entity which
directly or indirectly guaranteed such debt.

            6.20  Citizenship.    The  Mortgagors  are qualified  to  own  and
operate the Mortgaged Rigs under  the laws of the United States,  the Republic
of Panama and Australia, as may be applicable.

            6.21  Rig  Classification.   Each offshore  drilling rig  owned or
leased  by Holdings and  its Subsidiaries is  classified in  the highest class
available for rigs of its  age and type with the American Bureau  of Shipping,
Inc. or  another internationally recognized  classification society reasonably
acceptable  to  the  Collateral  Agent,   free  of  any  material  outstanding
requirements  or recommendations, other than (i) with respect to any Mortgaged
Rig, as permitted under the Mortgage relating thereto and (ii) with respect to
any other rigs, such requirements or recommendations which if not cured by the
owner thereof would not materially diminish such rig's value.

            SECTION  7.  Affirmative  Covenants.  Holdings  and  the  Borrower
covenant and  agree that on the  Initial Borrowing Date and  thereafter for so
long  as  this  Agreement  is  in  effect  (and  until  the  Commitments  have
terminated, no  Letters of Credit or  Notes are outstanding and  the Loans and
Unpaid  Drawings,  together  with interest,  Fees  and  all other  Obligations
incurred hereunder, are paid in full):

            7.01  Information  Covenants.  Holdings  and/or the  Borrower will
furnish to each Bank:

            (a)  Annual Financial Statements.  Within 90 days  after the close
      of  each  fiscal year  of Holdings,  the  consolidated balance  sheet of
      Holdings and its Subsidiaries, as at the end of such fiscal year and the
      related consolidated statements of operations and of cash flows for such
      fiscal year,  including the amount of  Consolidated Capital Expenditures
      made during such  fiscal year,  in each case  setting forth  comparative
      consolidated  figures for  the preceding  fiscal year,  and  examined by
      independent certified public accountants of recognized national standing
      whose opinion shall not be  qualified as to the scope of audit and as to
      the status of Holdings and its Subsidiaries as a going concern, together
      with a certificate of such accounting firm stating that in the course of
      its regular audit  of the business of  Holdings and the  Borrower, which
      audit  was  conducted in  accordance  with  generally accepted  auditing
      standards, such accounting firm has obtained no knowledge of any Default
      or Event of Default which  has occurred and is continuing or,  if in the
      opinion  of such accounting firm such a  Default or Event of Default has
      occurred and is continuing, a statement as to the nature thereof.

            (b)  Quarterly Financial Statements.  As soon as available and  in
      any event  within 45  days after the  close of each  of the  first three
      quarterly  accounting  periods in  each  fiscal  year, the  consolidated
      balance sheet  of Holdings and its  Subsidiaries, as at the  end of such
      quarterly period  and the related consolidated  statements of operations
      and of  cash flows for such quarterly period and for the elapsed portion
      of the fiscal  year ended with  the last day  of such quarterly  period,
      including the  amount of  Consolidated Capital Expenditures  made during
      such  period, and in  each case  setting forth  comparative consolidated
      figures for  the related period in  the prior fiscal year,  all of which
      shall  be unaudited,  but certified  by the  chief financial  officer or
      controller  of Holdings,  subject to  changes resulting  from audit  and
      normal year-end audit adjustments.

            (c)  Rig  Status Report.   As soon  as available and  in any event
      within  60 days  after the  end of  the first  three fiscal  quarters of
      Holdings and within 90 days after the end of the  fourth fiscal quarter,
      a report  (in form satisfactory  to the Administrative  Agent) detailing
      (i)(A) the  then current location of each  of the offshore drilling rigs
      owned or leased by  Holdings and its Subsidiaries, (B)  the then current
      term of and  parties to any contract of any  such offshore drilling rig,
      and (C) the then current  day rate with respect to any such contract and
      (ii) for the previous  fiscal quarter, the average day rates  and utili-
      zation for each such offshore drilling rig.

            (d)  Forecast; etc.  Not more than  60 days after the commencement
      of each fiscal  year of  Holdings, a forecast  which includes an  income
      statement, balance sheet  and cash  flow statement of  Holdings and  its
      Subsidiaries for each of the  four fiscal quarters of such fiscal  year,
      including a breakdown of  revenues, operating expenses, utilizations and
      Consolidated  Capital Expenditure assumptions for each offshore drilling
      rig owned or leased by Holdings and its Subsidiaries.

            (e)  Compliance Certificate.  At  the time of the  delivery of the
      financial  statements  provided  for  in  Sections 7.01(a)  and  (b),  a
      certificate of Holdings and/or  the Borrower signed by its  chief finan-
      cial  officer, controller  or other  Authorized Officer  in the  form of
      Exhibit K to the  effect that no Default or Event  of Default exists or,
      if any Default or Event of Default does exist, specifying the nature and
      extent thereof, which certificate shall  set forth the calculations  re-
      quired  to establish  whether  Holdings  and  its Subsidiaries  were  in
      compliance with the provisions of Section 8 as at the end of such fiscal
      period or year, as the case may be.

            (f)  Notice of Default or  Litigation.  Promptly, and in any event
      within  (x) three Business Days  after Holdings or  the Borrower obtains
      knowledge  thereof,  notice   of  the  occurrence  of  any  event  which
      constitutes a Default or Event of Default which notice shall specify the
      nature thereof, the period of existence thereof and what action Holdings
      or  the Borrower  proposes  to take  with respect  thereto  and (y)  ten
      Business Days  after the Borrower  obtains knowledge thereof,  notice of
      the  commencement of or any significant development in any litigation or
      governmental proceeding pending against Holdings or  the Borrower or any
      of  their respective  Subsidiaries which  is likely  to have  a Material
      Adverse  Effect or is  likely to have  a material adverse  effect on the
      ability of Holdings, the Borrower or any Subsidiary Guarantor to perform
      its obligations hereunder or under any other Credit Document.

            (g)  Auditors'   Reports.  Promptly   upon  receipt   thereof  and
      following  such time  as management  shall have  had reasonable  time to
      respond thereto, a  copy of  each formal report  or "management  letter"
      submitted  to Holdings or the Borrower by its independent accountants in
      connection with any  annual, interim or special audit made  by it of the
      books of Holdings or the Borrower.

            (h)  Insurance  Report.   On  or before  each  anniversary of  the
      Initial Borrowing  Date, a  report from Holdings  and/or the  Borrower's
      independent maritime insurance broker as required by the Mortgages.

            (i)  Annual Rig Valuation Report.  At  the time of the delivery of
      the financial statements provided for in Section 7.01(a), an updated rig
      valuation report from an  Approved Shipbroker setting forth the  current
      Market Value of each Mortgaged Rig.

            (j)  SEC Reports.   Promptly upon transmission  thereof, copies of
      any material filings  and registration with, and reports to,  the SEC by
      Holdings  or any  of  its  Subsidiaries  and  copies  of  all  financial
      statements,  proxy statements, notices and reports as Holdings or any of
      its  Subsidiaries shall  generally send  to analysts  or all  holders of
      their  capital stock in their capacity as  such holders (in each case to
      the  extent  not theretofore  delivered to  the  Banks pursuant  to this
      Agreement).

            (k)  Other Information.  From time to time, such other information
      or documents (financial or otherwise) as the Administrative Agent on its
      own behalf or on behalf of the Required Banks may reasonably request.

            7.02  Books, Records  and  Inspections.  Holdings will,  and  will
cause each of its Subsidiaries to, permit, upon reasonable notice to the chief
financial officer, controller or  any other Authorized Officer of  Holdings or
the Borrower,  officers and  designated representatives of  the Administrative
Agent or the Required Banks, to the extent necessary, to examine  the books of
account  of  Holdings and  any of  its Subsidiaries  and discuss  the affairs,
finances and accounts of Holdings and of any  of its Subsidiaries with, and be
advised as to the same by, its and their officers and independent accountants,
all at  such reasonable times and  intervals and to such  reasonable extent as
the Administrative Agent or the Required Banks may desire.

            7.03  Insurance.  In addition to any requirements set forth in the
Mortgages, Holdings will, and will  cause each of its Subsidiaries to,  at all
times maintain  in  full  force and  effect  insurance in  such  amounts  with
carriers of such insurance  industry ratings, covering such risks  and liabil-
ities  and  with  such  deductibles  or  self-insured  retentions  as  are  in
accordance  with normal  industry  practice for  similarly situated  insureds.
Holdings will,  and will  cause each  of its Subsidiaries  to, furnish  on the
Initial Borrowing Date and  annually thereafter to the Administrative  Agent a
summary of the insurance  carried together with certificates of  insurance and
other evidence of such insurance.

            7.04  Payment of Taxes.  Holdings will pay and discharge, and will
cause each of  its Subsidiaries to  pay and discharge, all  taxes, assessments
and  governmental charges  or levies  imposed upon  it or  upon its  income or
profits,  or upon any properties  belonging to it, prior to  the date on which
penalties attach thereto, and all lawful claims which, if unpaid, might become
a  Lien or charge upon any properties of  Holdings or any of its Subsidiaries,
provided that neither Holdings nor any Subsidiary shall be required to pay any
such  tax, assessment, charge, levy or claim  which is being contested in good
faith and by  proper proceedings if it  has maintained adequate  reserves with
respect thereto in accordance with GAAP.

            7.05  Consolidated  Corporate  Franchises.  Holdings will  do, and
will cause each  of its Subsidiaries to  do, or cause  to be done, all  things
necessary  to preserve  and  keep  in full  force  and effect  its  existence,
material rights and  authority, unless the failure to do  so is not reasonably
likely  to have  a  Material Adverse  Effect,  provided that  any  transaction
permitted by Section 8.02 will not constitute a breach of this Section 7.05.

            7.06  Compliance  with  Statutes,  etc.  Holdings  will,  and will
cause  each of  its  Subsidiaries to,  comply  with all  applicable  statutes,
regulations and orders  of, and  all applicable restrictions  imposed by,  all
governmental bodies, domestic  or foreign, in  respect of  the conduct of  its
business  and  the  ownership  of  its  property  other  than those  the  non-
compliance with  which would not have  a Material Adverse Effect  or would not
have a material adverse effect  on the ability of any Credit Party  to perform
its obligations under any Credit Document to which it is party.

            7.07  Good  Repair.  Except for  offshore drilling  rigs currently
under or scheduled to be repaired or which have  been damaged or have suffered
a casualty  as to which (within  a reasonable period of  time) Holdings and/or
the Borrower have not made a determination whether to replace or repair, or if
the  determination  to replace  or  repair has  been  made, as  to  which such
replacement or  repairs  are  being  undertaken, subject  to  availability  of
equipment, materials and/or  repair facilities, Holdings will, and  will cause
each of its Subsidiaries to, keep its properties and equipment  used or useful
in  its business,  in whomsoever's  possession they  may  be, in  good repair,
working order and condition,  normal wear and tear  excepted, and, subject  to
Section 8.02, see that from time to time there are made in such properties and
equipment   all  necessary   and  proper   repairs,  renewals,   replacements,
extensions, additions, betterments and improvements  thereto to the extent and
in the manner useful or customary for companies in similar businesses.

            7.08  End  of Fiscal Years;  Fiscal Quarters.  Holdings  will, for
financial reporting purposes,  cause (i) each  of its fiscal  years to end  on
December 31 of each year and (ii) each of its fiscal quarters to end  on March
31, June 30, September 30 and December 31 of each year.

            7.09  Use of Proceeds.  All proceeds of the Loans shall be used as
provided in Section 6.05.

            7.10  Earnings Concentration Account.  The Borrower shall maintain
with  Christiania  Bank   og  Kreditkasse,  Grand  Cayman   Branch,  on  terms
substantially similar to those in effect  prior to the Initial Borrowing Date,
an  account (the  "Concentration  Account") into  which  the Earnings  of  the
Borrower  and  the Subsidiary  Guarantors arising  from  the operation  of the
Mortgaged  Rigs  shall  be deposited  and  maintained  as  cash collateral  in
accordance  with the Security Agreement.   Funds in  the Concentration Account
shall  be  released from  time to  time to  the  Borrower upon  the Borrower's
request  (which request shall be implied by  any withdrawal by the Borrower of
funds  from the  Concentration  Account), unless  and until  such time  as the
Administrative  Agent,  following  the  occurrence of  an  Event  of  Default,
requires that said monies be held as security or applied by the Administrative
Agent,  for the benefit of itself and  the Banks, as it may direct, whereafter
the Borrower shall procure such funds  and ensure that such funds are  held as
security  or applied in accordance  with the directions  of the Administrative
Agent.

            7.11  Additional  Rig Valuations.  At any time as may be requested
by the Administrative Agent on  behalf of the Required Banks (but  in no event
in excess of  three times in any fiscal year of  Holdings (without taking into
account  the right  of Holdings or  the Borrower  to retain  a second Approved
Shipbroker in  accordance with immediately  succeeding sentence))  and at  the
expense of  the Borrower, Holdings or  the Borrower shall  retain the Approved
Shipbroker  requested by the Administrative  Agent to supply  a written report
setting forth  the Market Value of each Mortgaged Rig  at such time.  Holdings
or the Borrower may retain a second Approved Shipbroker of its own choosing at
such  time and at  its own expense  to supply a second  written report setting
forth the Market Value of such  Mortgaged Rigs.  Promptly upon receipt thereof
Holdings and/or the Borrower shall  deliver copies of each such report  to the
Banks.  

            7.12  Further  Assurances.  (a)  The  Total  Commitment  shall  be
reduced in accordance with Section 3.03(f) if the following conditions are not
satisfied (as determined in good faith by the Administrative Agent): 

           (i)  Mortgage.  HRB  Rig  Corporation shall  have  duly authorized,
      executed and delivered a US Mortgage with respect  to the C.E. Thornton,
      substantially  in the  form  of  Exhibit  I-1  hereto  and  all  actions
      necessary, desirable or otherwise reasonably requested by the Collateral
      Agent  to provide the Security  Trustee with a  perfected first priority
      security interest in the C.E. Thornton shall have been taken.

          (ii)  Evidence of  Lien, etc.  The Administrative  Agent shall  have
      received  a certificate of the U.S. Coast Guard showing (or confirmation
      updating previously  reviewed certificates  and indicating) that  the US
      Rig C.E. Thornton is registered in the ownership of HRB Rig Corporation,
      and subject  to the Lien of the US Mortgage  and free of all other Liens
      of record.

         (iii)  Security Agreement.   HRB Rig Corporation  shall have executed
      and  delivered a counterpart of  the Security Agreement  with respect to
      the  earnings of and insurance maintained on the C.E. Thornton, together
      with:

                  (1)  executed  copies  of Financing  Statements  (Form UCC-1
            and/or UCC-3) or appropriate  local equivalent in appropriate form
            for filing under the  UCC or appropriate local equivalent  of each
            jurisdiction  as  may  be  necessary to  perfect  the  assignments
            purported to be created thereby;

                  (2)  evidence that  all other recordings and  filings of, or
            with respect to, such assignment, and all other actions, as may be
            necessary or, in the opinion of the Collateral Agent, desirable to
            perfect the assignment  intended to be  created thereby have  been
            completed (it  being understood that UCC  financing statements and
            termination   statements  shall   be  filed  in   the  appropriate
            governmental  office  within   three  Business  Days  after   such
            assignment);

      and  the Security  Agreement  shall be  in  full force  and effect  with
      respect to  the  Security  Agreement  Collateral relating  to  the  C.E.
      Thornton.

            (b)  Holdings  and the Borrower will, and will cause each of their
respective Subsidiaries to,  at the  expense of the  Borrower, make,  execute,
endorse,  acknowledge,  file and/or  deliver to  the  Collateral Agent  or the
Security  Trustee, as  the  case may  be,  from time  to  time such  vouchers,
invoices,  schedules, confirmatory assignments,  conveyances, financing state-
ments, transfer endorsements, powers  of attorney, certificates, real property
surveys, reports and  other assurances  or instruments and  take such  further
steps  relating to  the  Collateral as  the Collateral  Agent or  the Security
Trustee, as the case may be, may reasonably require.  

            (c)  Holdings  and the  Borrower agree  that each  action required
above by this Section 7.12 shall be  completed as soon as possible, but in  no
event later  than 60 days after  such action is  requested to be taken  by the
Administrative Agent or  the Required Banks,  provided that in no  event shall
Holdings or the Borrower  be required to take any action, other than using its
reasonable  commercial efforts  without  any material  expenditure, to  obtain
consents or  other actions from third  parties with respect to  its compliance
with this Section 7.12.

            7.13   ERISA.  As  soon as possible  and, in any  event, within 10
days after Holdings, the Borrower or any of  their  respective Subsidiaries or
any  ERISA Affiliate knows or has  reason to know of the  occurrence of any of
the  following, Holdings or the  Borrower will deliver to  each of the Banks a
certificate of the Chief Financial Officer of Holdings or the Borrower setting
forth details as to such occurrence and the action, if any, that Holdings, the
Borrower, such Subsidiary or such  ERISA Affiliate is required or  proposes to
take, together with any  notices required or proposed to be given  to or filed
with or by  Holdings, the Borrower, such Subsidiary, the  ERISA Affiliate, the
PBGC,  or a Plan  participant or the Plan  administrator with respect thereto:
that a Reportable Event  has occurred; that an accumulated  funding deficiency
has been incurred or an application  may be or has been made to  the Secretary
of the Treasury  for a waiver or modification of  the minimum funding standard
(including  any  required  installment  payments)  or  an   extension  of  any
amortization period under Section 412 of the Code or Section 302 of ERISA with
respect  to a  Plan; that  a contribution  required to  be made  to a  Plan or
Foreign Pension Plan has  not been timely made; that a Plan has been or may be
terminated, reorganized, partitioned or  declared insolvent under Title  IV of
ERISA; that  a Plan has an  Unfunded Current Liability  giving rise to  a lien
under ERISA or the Code;  that proceedings may be  or have been instituted  to
terminate or appoint  a trustee to  administer a Plan,  that a proceeding  has
been instituted  pursuant to  Section  515 of  ERISA to  collect a  delinquent
contribution to a Plan;  that Holdings, the Borrower, any  of their respective
Subsidiaries or any ERISA Affiliate will or may incur any liability (including
any  indirect contingent  or  secondary liability)  to or  on  account of  the
termination of or withdrawal from a Plan under Section 4062, 4063, 4064, 4069,
4201,  4204 or  4212  of  ERISA  or  with respect  to  a  Plan  under  Section
401(a)(29), 4971  or 4975 of  the Code or Section  409 or 502(i)  or 502(l) of
ERISA; or that Holdings, the Borrower or any Subsidiary may incur any material
unrecognized  liability  pursuant to  any  employee welfare  benefit  plan (as
defined in Section 3(1) of ERISA)  that provides benefits to retired employees
or other former employees  (other than as required by Section 601 of ERISA) or
any employee pension benefit plan (as defined in Section 3(2) of ERISA).  Upon
request, Holdings or the Borrower will deliver to each of the Banks a complete
copy of the  annual report (Form 5500)  of each Plan (including  to the extent
required,  the  related financial  and actuarial  statements and  opinions and
other  supporting  statements,   certifications,  schedules  and  information)
required to be filed  with the Internal Revenue  Service.  In addition  to any
certificates or notices delivered to the Banks pursuant to the first  sentence
hereof,  copies  of  annual reports,  and  any  material  notices received  by
Holdings, the Borrower or  any of their respective  Subsidiaries or any  ERISA
Affiliate  from any  governmental agency  with respect  to any  Plan shall  be
delivered to the  Banks no later than  10 days after the date  such report has
been filed  with the Internal Revenue Service or such notice has been received
by  Holdings,  the  Borrower,  the  Subsidiary  or  the  ERISA  Affiliate,  as
applicable.

            SECTION  8.  Negative Covenants.  Holdings and the Borrower hereby
covenant and agree that as of the Initial Borrowing Date and thereafter for so
long as this Agreement is in effect and until the Commitments have terminated,
no  Letters  of Credit  or  Notes are  outstanding  and the  Loans  and Unpaid
Drawings, together  with interest,  Fees and  all  other Obligations  incurred
hereunder, are paid in full:

            8.01  Changes in  Business.  Holdings  and the Borrower  will not,
and will not permit  any of their respective Subsidiaries to, materially alter
the  character of  the business of  Holdings and  its Subsidiaries  taken as a
whole  from  that  conducted at  the  Initial  Borrowing  Date (including  any
material  expansion outside of  the offshore contract  drilling and production
business),  provided that this Section 8.01 shall not restrict the engaging in
business ancillary to the offshore contract drilling and production business.

            8.02  Consolidation, Merger or Sale of Assets, etc.  Holdings  and
the Borrower  will not, and will  not permit any of  the Subsidiary Guarantors
to, wind  up, liquidate or dissolve its affairs, or enter into any transaction
of merger  or consolidation, sell or otherwise dispose of all or substantially
all of its property  or assets or of any Collateral or agree  to do any of the
foregoing at any future time, except that the following shall be permitted:

            (a)  (i) any Subsidiary of Holdings  (other than the Borrower) may
      be merged  or consolidated  with or  into,  or be  liquidated into,  the
      Borrower (so long as the Borrower  is the surviving corporation) or  any
      Guarantor (so long as  such Guarantor is the surviving  corporation) and
      (ii) all  or any part of the business, properties and assets of Holdings
      or any  of its Subsidiaries  (other than the Borrower)  may be conveyed,
      leased, sold  or transferred  to the Borrower  or any  Guarantor or  any
      Subsidiary  of  the Borrower  or any  Guarantors,  provided that  if any
      Collateral  is transferred  pursuant to  this Section  8.02(a), Holdings
      and/or  the Borrower  shall provide  the Administrative  Agent with  ten
      Business Days' notice prior to  such transfer, and the Borrower or  such
      Subsidiary,  as  the  case may  be,  owning  the  Collateral after  such
      transfer shall  take all action  reasonably requested by  the Collateral
      Agent and/or the Security  Trustee in respect of the  continued priority
      and perfection of such Collateral;

            (b)  Holdings may  liquidate or  dissolve or consolidate  or merge
      into  another entity, provided (i) Holdings is the successor or survivor
      in respect of such merger, and after giving effect thereto Holdings will
      be in full compliance with the terms of this Agreement and (ii) Standard
      & Poor's shall  have affirmed in writing that such  transaction will not
      impair  Holdings' implied senior  debt rating as such  debt rating is in
      effect immediately  prior to  the announcement  or consummation  of such
      liquidation, dissolution, consolidation or merger;

            (c)  other sales or  dispositions of assets provided that  (x) the
      Total Commitment shall be reduced as required  by Section 3.03(c) in the
      case  of the sale or  disposition of assets  constituting Collateral and
      (y) each such sale or disposition  shall be in an amount at least  equal
      to  the  fair  market  value thereof  (as  determined  by  the Board  of
      Directors of the Borrower in the case of sales in excess of $20,000,000)
      and  for proceeds consisting  solely of not  less than 100%  cash in the
      case  of  assets  constituting  Collateral  and  (z)  no  such  sale  or
      disposition  shall  constitute  the  sale  or  disposition  of   all  or
      substantially  all   of  the  combined   assets  of  Holdings   and  its
      Subsidiaries taken together; and

            (d)  other sales or  dispositions of  assets in each  case to  the
      extent  the Required Banks have consented in writing thereto and subject
      to such conditions as may be set forth in such consent.

            To the extent any Collateral is  sold or otherwise disposed of (to
any Person other  than Holdings  and its  Subsidiaries) as  permitted by  this
Section 8.02, such Collateral shall be  sold or otherwise disposed of free and
clear of the  Liens created by the Security  Documents, and the Administrative
Agent, the  Collateral Agent and the  Security Trustee shall  be authorized to
take any actions deemed appropriate in order to effect the foregoing.

            8.03  Liens  on  Collateral; Arcade  Drilling.  Holdings  will not
permit Arcade to create,  incur, assume or suffer to exist  any Lien or assign
any right to receive income, or file or permit the filing of any UCC Financing
Statement  or any other similar notice of  Lien under any similar recording or
notice statute, and  Holdings and the Borrowers will not,  and will not permit
any of their  respective Subsidiaries to, create,  incur, assume or suffer  to
exist  any Lien upon or  with respect to any  Collateral, whether now owned or
hereafter acquired, or sell any such Collateral subject to an understanding or
agreement, contingent  or otherwise, to repurchase  such Collateral (including
sales of accounts receivable or notes with  recourse to Holdings or any of its
Subsidiaries) or  assign any right  to receive income,  or file or  permit the
filing of any financing statement under the UCC or any other similar notice of
Lien on  any Collateral under any similar  recording or notice statute; except
that the following shall be permitted:

            (a)  Liens  for taxes  not  yet  due  or  Liens  for  taxes  being
      contested  in  good  faith  and  by  appropriate  proceedings for  which
      adequate  reserves with respect  thereto, in accordance  with GAAP, have
      been established;

            (b)  Liens imposed  by  law which  were incurred  in the  ordinary
      course  of business,  such as  carriers', warehousemen's  and mechanics'
      Liens,  statutory landlord's  Liens,  maritime Liens  and other  similar
      Liens arising in the ordinary  course of business, and (x) which  do not
      in the aggregate materially detract from the value of such Collateral or
      materially impair the  use thereof in the  operation of the  business of
      Holdings,  the Borrower or any  of their respective  Subsidiaries or (y)
      which  are  being contested  in  good faith  by  appropriate proceedings
      (including  the providing of bail), which proceedings have the effect of
      preventing the forfeiture or sale of the Collateral subject to such Lien
      or  procuring the  release of the  Collateral subject to  such Lien from
      arrest or detention;

            (c)  Liens created by or  pursuant to this Agreement or  the other
      Credit Documents;

            (d)  Liens permitted under  the express terms of the  Mortgages or
      other Security Documents;

            (e)  Liens existing  on the Initial  Borrowing Date and  listed on
      Annex  VIII,  without giving  effect  to  any  subsequent extensions  or
      renewals thereof;

            (f)  Liens  arising from  judgments,  decrees or  attachments  (or
      securing of appeal bonds with respect thereto) to the extent not covered
      by insurance, so long as the obligations in connection  therewith do not
      exceed $5,000,000  in the aggregate  and otherwise in  circumstances not
      constituting an Event of Default under Section 9.08;

            (g)  any  interest or  title of  a lessor  or charterer  under any
      lease  or charter (i)  in existence on the  Initial Borrowing Date, (ii)
      among  Holdings  and/or  any  of its  Subsidiaries  or  (iii)  otherwise
      permitted by this Agreement; and

            (h)  immaterial  Liens on any Real Property of  Holdings or any of
      its Subsidiaries.

            8.04  Indebtedness of Arcade.  Holdings will not permit  Arcade to
contract, create, incur, assume or suffer to exist any Indebtedness, except:

           (i)  Indebtedness incurred pursuant to this Agreement and the other
      Credit Documents;

          (ii)  Indebtedness of Arcade existing  on the Effective Date to  the
      extent the  same is listed on Annex VII, but no refinancings or renewals
      thereof;

         (iii)  Indebtedness evidenced  by  Capitalized Lease  Obligations  so
      long as the  aggregate principal amount of Capitalized Lease Obligations
      outstanding at  any time pursuant to  this Section 8.04  does not exceed
      $1,000,000 in the aggregate; and

          (iv)  Indebtedness subject to Liens permitted under Section 8.03(e).

            8.05  Dividends; Restrictions on Subsidiaries, etc.  (a)  Holdings
will not,  and will not permit any of its  Subsidiaries to, declare or pay any
dividends  (other  than  dividends (i)  payable  solely  in  capital stock  of
Holdings  or rights  in  respect thereof  or  (ii) constituting  spin-offs  of
divisions or direct or indirect operating subsidiaries of Holdings (other than
Arcade and the  Borrower and their direct or  indirect Subsidiaries) or return
any capital  to, the stockholders of  Holdings or authorize or  make any other
distribution,  payment or delivery of property or  cash to the stockholders of
Holdings as such, or  redeem, retire, purchase or otherwise  acquire, directly
or indirectly, for  a consideration, any  shares of any  class of the  capital
stock of Holdings now or hereafter outstanding (or any warrants for or options
or stock appreciation rights in respect  of any of such shares), or  set aside
any funds for any of the foregoing purposes, or permit any of its Subsidiaries
to purchase or otherwise acquire for consideration any shares of  any class of
the capital stock of Holdings, now or hereafter outstanding (or any options or
warrants or  stock appreciation rights issued by  Holdings with respect to its
capital stock) (all of the foregoing "Dividends"), except that:

           (i)  Holdings may redeem or repurchase common stock of Holdings (or
      options  to purchase  such  common stock)  from  (1) present  or  former
      officers, employees and directors  of Holdings, the Borrower, or  any of
      their Subsidiaries (or their estates) upon the death, permanent disabil-
      ity,  retirement  or termination  of employment  of  any such  Person or
      otherwise in accordance with any stock option plan or any employee stock
      ownership plan, or  (2) stockholders of Holdings so long  as the purpose
      of such purchase is to  acquire common stock of Holdings for  reissuance
      to new officers, employees and directors (or their estates) of Holdings,
      the  Borrower or any of  their respective Subsidiaries  to the extent so
      reissued within  12 months  of any such  purchase, provided that  in all
      such cases (x) no  Default or Event of  Default is then in  existence or
      would arise therefrom,  (y) the  aggregate amount  of all  cash paid  in
      respect of  all such shares  so redeemed or repurchased  in any calendar
      year does not exceed $15,000,000 plus proceeds of key man life insurance
      used  for the  purpose of repurchasing  such common stock  owned by such
      Person  and,  provided further,  that in  the  event that  Holdings sub-
      sequently  resells to any member of its, or any Subsidiary's management,
      any  shares redeemed  or repurchased  pursuant to  this clause  (i), the
      amount  of repurchases  Holdings may make  from officers,  employees and
      directors  pursuant to this clause  (i) shall be  increased by an amount
      equal to any cash received by Holdings upon the resale of such shares;

          (ii)  Holdings may pay  or make  Dividends on (i)  existing Class  A
      common stock (up to a  maximum of $100 per annum) and (ii)  any issue of
      preferred stock whether now existing or hereafter issued; and

         (iii)  so long  as no  Default or  Event of  Default exists or  would
      result therefrom, Holdings shall  be permitted to pay or  make Dividends
      in an  amount not to exceed  50%, in the aggregate,  of Consolidated Net
      Income on a cumulative basis beginning October 1, 1996.

            (b)  Holdings and the Borrower  will not, and will not  permit any
of the  Subsidiary Guarantors to, create or otherwise cause or suffer to exist
any  encumbrance or restriction which prohibits or otherwise restricts (A) the
ability of  any Subsidiary Guarantor to  (a) pay dividends or  make other dis-
tributions or  pay any  Indebtedness owed to  the Borrower  or any  Subsidiary
Guarantor, or (b)  make loans or  advances to the  Borrower or any  Subsidiary
Guarantor, (c) transfer any of its properties or assets to the Borrower or any
Subsidiary  Guarantor  or  (B)  the  ability of  the  Borrower  or  any  other
Subsidiary  Guarantor of the  Borrower to create,  incur, assume  or suffer to
exist any  Lien upon its property  or assets to secure  the Obligations, other
than prohibitions or restrictions existing under or by reason of:

           (i) this Agreement and the other Credit Documents;

          (ii) applicable law;

         (iii) customary   non-assignment  provisions  entered   into  in  the
      ordinary course of business and consistent with past practices;

          (iv) any restriction  or encumbrance  with respect  to a  Subsidiary
      Guarantor imposed pursuant to  an agreement which has been  entered into
      for the sale  or disposition of all or substantially  all of the capital
      stock or  assets of such Subsidiary  Guarantor, so long as  such sale or
      disposition is permitted under this Agreement; and 

           (v) Permitted Liens and any documents  or instruments governing the
      terms  of  any Indebtedness  or other  obligations  secured by  any such
      Liens, provided that such prohibitions or restrictions apply only to the
      assets subject to such Liens.

            8.06  Transactions  with  Affiliates.  Holdings  and the  Borrower
will not, and will not  permit any of their respective Subsidiaries  to, enter
into any transaction  or series  of transactions after  the Initial  Borrowing
Date whether  or not in  the ordinary course  of business, with  any Affiliate
other than on terms and  conditions substantially as favorable to Holdings  or
such  Subsidiary as would be obtainable by  Holdings or such Subsidiary at the
time  in a  comparable arm's-length  transaction with a  Person other  than an
Affiliate, provided that  the foregoing  restrictions shall not  apply to  (i)
employment arrangements entered into  in the ordinary course of  business with
officers of Holdings and its Subsidiaries, (ii) customary fees paid to members
of the Board of Directors  of Holdings and of its Subsidiaries,  (iii) capital
contributions  made by Holdings to the Borrower, (iv) all transactions between
or among Holdings and  its Subsidiaries, (v) all immaterial  transactions with
the  officers  or  members  of  the Board  of  Directors  of  Holdings  or its
Subsidiaries and (vi) all immaterial transactions with Affiliates.

            8.07  Vessel Management; Registry.  Holdings and the Borrower will
not, and will not  permit any of their Subsidiaries to, (i) change the overall
management  of  any  of  the  Mortgaged  Rigs from  Holdings  or  any  of  its
Subsidiaries or (ii) change the national registry of any Mortgaged Rig.

            8.08  Coverage Ratio.  Holdings  will not permit the  ratio of (i)
Consolidated EBITDAR to  (ii) the  sum of Consolidated  Interest Expense  plus
Consolidated Rent Expense for  any period of four consecutive  fiscal quarters
of Holdings (taken as one accounting period) to be less than 2.50:1.00.

            8.09  Working Capital.  Holdings  will not permit  Working Capital
on the  last day  of any  fiscal quarter  of Holdings  to be less  than $0  if
Working Capital was less than $0 on  the last day of the immediately preceding
fiscal quarter.

            8.10  Leverage Ratio.  Holdings will not permit the Leverage Ratio
(i) at the  end of any fiscal quarter ending prior  to the date which is three
years after  the date of this Agreement to  be greater than 0.50:1.00 and (ii)
at  the  end of  any  fiscal  quarter ending  thereafter  to  be greater  than
0.40:1.00.

            8.11  Collateral Maintenance.  (a)  Holdings shall not  permit the
Market Value of  the Mortgaged Rigs at any time to  be less than 1.6 times the
Total Commitment in effect from time to time.

            (b)  Holdings will not (i) permit  its percentage ownership of the
total capital  stock of Arcade at any  time to be reduced  below 74.4% or (ii)
pledge any Arcade  shares now held or hereafter acquired by Holdings or any of
its Subsidiaries to any Person other than the Collateral Agent.

            SECTION 9.  Events of Default.  Upon the occurrence  of any of the
following specified events (each an "Event of Default"):

            9.01  Payments.  The Borrower  shall (i)  default  in the  payment
when due of any principal of the Loans and such default shall continue for two
or  more Business Days  or (ii) default,  and such default  shall continue for
three or  more Business Days after  notice by the Administrative  Agent or the
Required Banks, in the payment when due of any Unpaid Drawing, any interest on
the Loans or  any Fees or any other amounts owing hereunder or under any other
Credit Document; or

            9.02  Representations,   etc.  Any  representation,   warranty  or
statement made by  any Credit Party herein or in any  other Credit Document or
in any statement or certificate delivered or required to be delivered pursuant
hereto or thereto shall prove to be untrue in any material respect on the date
as of which made or deemed made; or

            9.03  Covenants.  Holdings  or the  Borrower shall (a)  default in
the due performance  or observance by  it of any  term, covenant or  agreement
contained in Section 7.08 or Section  8 or (b) default in the  due performance
or  observance by  it of  any term,  covenant or  agreement (other  than those
referred to  in Section 9.01,  9.02 or clause (a)  of this Section  9.03) con-
tained in  this Agreement and  such default  shall continue  unremedied for  a
period of at  least 30 days after notice to the Borrower by the Administrative
Agent or the Required Banks; or

            9.04  Default Under Other Agreements.  (a)  Holdings, the Borrower
or any of their respective Subsidiaries shall (i) default in  any payment with
respect to any Indebtedness (other than the Obligations) beyond the  period of
grace, if  any, applicable thereto or  (ii) default in the  observance or per-
formance of any agreement  or condition relating to  any such Indebtedness  or
contained  in  any instrument  or agreement  evidencing, securing  or relating
thereto, or  any other  event shall  occur or condition  exist, the  effect of
which default  or other  event  or condition  results in  acceleration or  the
renegotiation of the material payment terms of any such Indebtedness to become
due prior to its stated maturity; or (b) any such Indebtedness of Holdings  or
any of  its Subsidiaries shall be declared to  be due and payable, or required
to be prepaid other  than by a regularly scheduled required  prepayment, prior
to the stated maturity thereof, provided that it shall not constitute an Event
of Default pursuant to this Section 9.04 unless the aggregate principal amount
of such Indebtedness in default exceeds $5,000,000 at any one time; or

            9.05  Bankruptcy,  etc.  Holdings, the  Borrower or  any of  their
respective  Subsidiaries shall  commence  a voluntary  case concerning  itself
under Title  11 of  the United  States Code entitled  "Bankruptcy," as  now or
hereafter in effect, or  any successor thereto (the "Bankruptcy  Code"); or an
involuntary case is commenced against Holdings,  the Borrower or any of  their
respective Subsidiaries and the  petition is not controverted within  10 days,
or  is not  dismissed within  60 days, after  commencement of  the case;  or a
custodian  (as defined  in  the Bankruptcy  Code) is  appointed for,  or takes
charge of, all or substantially all  of the property of Holdings, the Borrower
or any of their respective  Subsidiaries; or Holdings, the Borrower or  any of
their  respective  Subsidiaries  commences  any  other  proceeding  under  any
reorganization,  arrangement,  adjustment of  debt,  relief  of debtors,  dis-
solution, insolvency or liquidation or similar law of any jurisdiction whether
now or hereafter in effect relating to Holdings, the  Borrower or any of their
respective Subsidiaries;  or there is commenced against Holdings, the Borrower
or  any of  their respective  Subsidiaries any  such case or  proceeding which
remains undismissed for a period of 60 days; or Holdings, the  Borrower or any
of  their respective Subsidiaries is adjudicated insolvent or bankrupt; or any
order  of  relief or  other order  approving any  such  case or  proceeding is
entered; Holdings,  the  Borrower  or any  of  their  respective  Subsidiaries
suffers any appointment of any custodian or the like for it or any substantial
part of its property to continue undischarged  or unstayed for a period of  60
days; or Holdings, the Borrower or  any of their respective Subsidiaries makes
a general assignment for the benefit  of creditors; or any corporate action is
taken by Holdings,  the Borrower or  any of their respective  Subsidiaries for
the purpose of effecting any of the foregoing; or

            9.06  Security Documents.  (i) Any Security Document  shall, after
the execution and delivery  thereof, cease to be in full  force and effect, or
shall cease to give the Collateral Agent or the Security Trustee,  as the case
may  be, the  Liens, rights,  powers  and privileges  purported to  be created
thereby in favor of the Collateral Agent or  the Security Trustee, as the case
may be, or (ii) any Credit Party shall default in any respect in the  due per-
formance  or observance of any  term, covenant or agreement  on its part to be
performed or observed pursuant to any such Security  Document and such default
(unless such default creates an Event of Default under clause (i) above) shall
continue  unremedied for a  period of  at least  30 days  after notice  to the
Borrower by the Administrative Agent or the Required Banks; or

            9.07  Guaranty.  Any Guaranty or any provision thereof shall cease
to be in full force and effect, or any Guarantor or any Person acting by or on
behalf of such Guarantor  shall deny or disaffirm  all or any portion  of such
Guarantor's  obligation thereunder,  or  any Guarantor  shall  default in  the
observance of  any term, covenant or agreement on  its part to be performed or
observed pursuant thereto  and such  default (other than  any default  arising
from a failure to make any payment thereunder) shall continue unremedied for a
period of at least 30 days after  notice to the Borrower by the Administrative
Agent or the Required Banks; or

            9.08  Judgments.  One  or  more  judgments  or  decrees  shall  be
entered against Holdings, the Borrower  or any other Credit Party involving  a
liability of $1,000,000 or more in the case of any one such judgment or decree
and $5,000,000 or more in the aggregate for all such judgments and decrees for
Holdings, the Borrower and the other Credit Parties (not paid or to the extent
not covered  by insurance) and  any such judgments  or decrees shall  not have
been vacated, discharged  or stayed or  bonded pending  appeal within 60  days
from the entry thereof; or

            9.09  Citizenship.  Any Mortgagor  shall cease to be  qualified to
own and operate  the Mortgaged Rigs under  the laws of the  United States, the
Republic of Panama or Australia, as may be applicable; or

            9.10  Employee Benefit Plans. (a)(i) A contribution required to be
made with  respect to  any (x)  employee pension benefit  plan (as  defined in
Section 3(2) of ERISA)  maintained or contributed to by (or  to which there is
an obligation to contribute of) Holdings or a Subsidiary or an ERISA Affiliate
or  (y) Foreign Pension Plan has not been  timely made or (ii) Holdings or any
Subsidiary has incurred or is  likely to incur liabilities pursuant to  one or
more employee welfare benefit plans (as defined in Section 3(1) of ERISA) that
provide benefits to retired employees or other former employees (other than as
required  by  Section 601  of ERISA)  or  employee pension  benefit  plans (as
defined in  Section 3(2) of ERISA); (b) there shall result from any such event
or events the imposition of a lien,  the granting of a security interest, or a
liability  or a material  risk of incurring  a liability; and  (c) which lien,
security  interest or liability, individually, and/or in the aggregate, in the
opinion of the Required Banks, will have a Material Adverse Effect; or

            9.11  Change of Control.  A Change of Control shall occur;

then, and  in any  such event,  and at any  time thereafter,  if any  Event of
Default shall then  be continuing,  the Administrative Agent  shall, upon  the
written request of the Required Banks, by written notice to the Borrower, take
any  or all of the  following actions, without prejudice  to the rights of the
Administrative  Agent or any  Bank to  enforce its  claims against  any Credit
Party,  except  as  otherwise  specifically  provided  for  in this  Agreement
(provided that, if  an Event of Default specified in  Section 9.05 shall occur
with  respect to the Borrower, the result which would occur upon the giving of
written notice  by the Administrative  Agent as  specified in clauses  (i) and
(ii) below shall occur automatically  without the giving of any such  notice):
(i)  declare the Total Commitment terminated, whereupon the Commitment of each
Bank shall forthwith  terminate immediately and  any Commitment Commission  or
any other Fees shall forthwith become due and payable without any other notice
of any kind; (ii) declare the principal of and any accrued interest in respect
of all Loans and  all obligations owing hereunder (including  Unpaid Drawings)
and  thereunder to  be,  whereupon the  same shall  become, forthwith  due and
payable without presentment, demand, protest or other notice of any kind,  all
of which are hereby waived by each Credit Party; (iii)  enforce, as Collateral
Agent (or direct the Collateral Agent to enforce), any or all of the Liens and
security  interests created pursuant to the Security Documents; (iv) terminate
any Letter of Credit which may be terminated in accordance with its terms; (v)
direct the  Borrower to pay  (and the Borrower  hereby agrees upon  receipt of
such  notice, or  upon the  occurrence of  any Event  of Default  specified in
Section 9.05 in  respect of the Borrower, it will pay) to the Collateral Agent
at the Payment Office such additional amounts of  cash, to be held as security
for the Borrower's reimbursement  obligations in respect of Letters  of Credit
then outstanding equal to the aggregate Stated Amount of all Letters of Credit
then outstanding; and (vi) apply any amounts held as cash collateral  pursuant
to Section 4.02 or this Section 9 to repay Obligations.

            SECTION  10.  Definitions.  As  used  herein, the  following  terms
shall  have  the  meanings  herein  specified  unless  the  context  otherwise
requires.   Defined terms  in  this Agreement  shall include  in the  singular
number the plural and in the plural the singular:

            "Adjusted Commitment"  for each Non-Defaulting Bank  shall mean at
any time the product of such Bank's Adjusted Percentage and the Adjusted Total
Commitment.

            "Adjusted  Percentage" shall  mean  (x) at  a  time when  no  Bank
Default exists, for each Bank such Bank's Percentage and (y) at a time  when a
Bank Default exists (i) for each Bank that is a Defaulting Bank, zero and (ii)
for  each Bank that  is a  Non-Defaulting Bank,  the percentage  determined by
dividing such Bank's Commitment at such time by the Adjusted  Total Commitment
at  such time, it being  understood that all  references herein to Commitments
and  the Adjusted  Total Commitment  at a  time when  the Total  Commitment or
Adjusted Total  Commitment, as the case  may be, has been  terminated shall be
references to the  Commitments or Adjusted Total  Commitment, as the case  may
be, in  effect immediately prior  to such  termination, provided  that (A)  no
Bank's Adjusted Percentage shall change upon the occurrence of a Bank  Default
from that  in effect immediately prior  to such Bank Default  if, after giving
effect to such  Bank Default and any repayment of Loans  at such time pursuant
to Section 4.02(A)(a)  or otherwise, the sum of (i)  the aggregate outstanding
principal amount of Loans of all Non-Defaulting Banks plus (ii)  the Letter of
Credit Outstandings, exceeds the Adjusted Total Commitment; (B) the changes to
the Adjusted Percentage that  would have become effective upon  the occurrence
of a Bank Default  but that did not become  effective as a result of  the pre-
ceding  clause  (A)  shall  become  effective on  the  first  date  after  the
occurrence of the relevant Bank Default on which the sum of  (i) the aggregate
outstanding principal amount  of the  Loans of all  Non-Defaulting Banks  plus
(ii) the Letter of Credit  Outstandings is equal to or less  than the Adjusted
Total Commitment; and (C)  if (i) a Non-Defaulting Bank's  Adjusted Percentage
is changed pursuant to the preceding clause (B) and (ii) any repayment of such
Bank's Loans,  or of Unpaid Drawings  with respect to Letters  of Credit, that
were made  during the period  commencing after the  date of the  relevant Bank
Default and ending on the date of  such change to its Adjusted Percentage must
be returned  to the  Borrower  as a  preferential or  similar  payment in  any
bankruptcy or similar proceeding of the Borrower, then the change to such Non-
Defaulting Bank's  Adjusted Percentage  effected pursuant to  said clause  (B)
shall be reduced to that positive change,  if any, as would have been made  to
its Adjusted Percentage if  (x) such repayments had not been  made and (y) the
maximum change  to its Adjusted Percentage  would have resulted in  the sum of
the  outstanding principal  of Loans made  by such  Bank plus  such Bank's new
Adjusted  Percentage of the outstanding  principal amount of  Letter of Credit
Outstandings equalling such Bank's Commitment at such time. 

            "Adjusted  Total Commitment"  shall  mean at  any  time the  Total
Commitment less the aggregate Commitments of all Defaulting Banks.

            "Administrative  Agent" shall  have  the meaning  provided in  the
first paragraph  of  this Agreement  and shall  include any  successor to  the
Administrative Agent appointed pursuant to Section 11.09.

            "Affected  Eurodollar Loan"  shall  have the  meaning provided  in
Section 4.02(B).

            "Affiliate"  shall mean,  with respect  to  any Person,  any other
Person  directly or indirectly controlling  (including but not  limited to all
directors and  officers of  such Person),  controlled by, or  under direct  or
indirect common control with such Person.  A Person shall be deemed to control
a corporation if such Person possesses,  directly or indirectly, the power (i)
to vote  10% or more  of the securities having  ordinary voting power  for the
election  of directors  of such  corporation or  (ii) to  direct or  cause the
direction  of the management and policies of such corporation, whether through
the ownership of voting securities, by contract or otherwise.

            "Agreement" shall mean this  Credit Agreement, as the same  may be
from time to time modified, amended and/or supplemented.

            "Applicable Eurodollar  Margin" shall  be equal to  the percentage
per annum set  forth below  opposite Holdings' applicable  Leverage Ratio,  as
calculated for the last day  of the fiscal quarter last ended;  provided that,
in the event a change in the Applicable Eurodollar  Margin is to be made, such
change shall  not become effective until the  date on which the Administrative
Agent receives written notice from the Borrower indicating that such change is
warranted:


                                                   Applicable
               Leverage Ratio                  Eurodollar Margin

            Equal to or less than
              0.25:1.00                        0.65% per annum

            Greater than 0.25:1:00             0.85% per annum.

            "Approved Bank" shall have the meaning provided in  the definition
of "Cash Equivalents."

            "Approved  Company"  shall  have   the  meaning  provided  in  the
definition of "Cash Equivalents."

            "Approved  Shipbroker"  shall  mean   each  of  the   first-class,
international, independent, sale-and-purchase Shipbrokers of offshore drilling
units listed on Annex  IX, as such Annex may  be revised from time to  time at
the request  of the  Required Banks  with the consent  of the  Borrower, which
consent shall not be unreasonably withheld.

            "Arcade" shall mean Arcade Drilling AS, a Norwegian Corporation.

            "Arcade Rigs" shall have the meaning provided in Section 3.03(e).

            "Assignment and  Assumption Agreement" shall  mean the  Assignment
and Assumption Agreement substantially in the form of Exhibit L (appropriately
completed).

            "Australian  Rig"  shall mean  the  offshore  drilling vessel  Ron
Tappmeyer.

            "Authorized  Officer" shall  mean any officer  of Holdings  or the
Borrower designated as such in writing to the Administrative Agent by Holdings
or the Borrower.

            "Bank" shall have the  meaning provided in the first  paragraph of
this Agreement.

            "Bank  Default" shall  mean (i)  the refusal  (which has  not been
retracted) of a Bank to make available its portion of any Loans or to fund its
portion  of any  unreimbursed payment  under Section  2.04(c)  or (ii)  a Bank
having notified the Administrative  Agent and/or the Borrower that it does not
intend to  comply with  the obligations  under Section  1.01 or  under Section
2.04(c), in the case of either (i) or (ii) as a result of the appointment of a
receiver or conservator with respect to  such Bank at the direction or request
of any regulatory agency or authority.

            "Bankruptcy Code" shall have the meaning provided in Section 9.05.

            "Base Rate"  shall  mean  the higher  of  (i)  the  Administrative
Agent's Prime Rate, and (ii) 0.50% per annum above the Federal Funds Effective
Rate.

            "Base  Rate Loan"  shall mean  each Loan  bearing interest  at the
rates provided in Section 1.08(a).

            "Borrower" shall have the meaning provided in the  first paragraph
of this Agreement.

            "Borrowing" shall mean the incurrence of one Type of Loan pursuant
to the Facility  by the Borrower  from all of the  Banks with respect  to such
Facility on a pro rata basis on a given date (or resulting from conversions on
a  given date),  having in  the  case of  Eurodollar Loans  the same  Interest
Period; provided that  Base Rate  Loans incurred pursuant  to Section  1.10(b)
shall be considered included in any related Borrowing of Eurodollar Loans.

            "Business  Day"  shall mean  (i) for  all  purposes other  than as
covered  by clause (ii) below, any day  excluding Saturday, Sunday and any day
which shall be in  the Cities of New York  and/or London a legal holiday  or a
day on which banking institutions are authorized by  law or other governmental
actions to  close and (ii) with  respect to all notices  and determinations in
connection with,  and payments of  principal and interest  on, Loans, any  day
which is a Business  Day described in clause (i)  and which is also a  day for
trading  by  and between  banks  in  U.S.  dollar  deposits in  the  interbank
Eurodollar market.

            "Capital Expenditures" shall mean, with respect to any Person, all
expenditures by such  Person which  should be capitalized  in accordance  with
GAAP, including all such  expenditures with respect to fixed or capital assets
(including, without limitation, expenditures for maintenance and repairs which
should be capitalized in accordance with generally accepted accounting princi-
ples) and the amount of Capitalized Lease Obligations incurred by such Person.

            "Capital Lease" as applied to any  Person shall mean any lease  of
any property (whether real, personal or mixed) by that Person as lessee which,
in conformity with  GAAP, is accounted for  as a capital lease  on the balance
sheet of that Person.

            "Capitalized Lease Obligations"  shall mean all  obligations under
Capital Leases of Holdings  or any of its Subsidiaries  in each case taken  at
the amount thereof accounted for as liabilities in accordance with GAAP.

            "Cash Equivalents"  shall mean  (i) securities issued  or directly
and  fully guaranteed or insured by the United States of America or any agency
or instrumentality  thereof (provided that  the full  faith and credit  of the
United States of America is  pledged in support thereof) having maturities  of
not  more  than six  months from  the date  of  acquisition, (ii)  U.S. dollar
denominated time deposits, certificates of deposit and bankers' acceptances of
(x) any Bank, (y) any domestic  commercial bank of recognized standing  having
capital and  surplus in excess of $500,000,000 or  (z) any bank (or the parent
company of such bank) whose short-term commercial paper rating from Standard &
Poor's Corporation ("S&P")  is at least A-1 or the  equivalent thereof or from
Moody's Investors Service, Inc. ("Moody's") is at least P-1 or the  equivalent
thereof  (any such bank, an "Approved Bank"),  in each case with maturities of
not  more  than six  months from  the  date of  acquisition,  (iii) repurchase
obligations with  a term of not more than seven days for underlying securities
of  the types described in clause (i) above entered into with any bank meeting
the  qualifications specified  in  clause (ii)  above,  (iv) commercial  paper
issued by any Bank  or Approved Bank or by  the parent company of any  Bank or
Approved Bank and commercial paper issued by, or guaranteed by, any industrial
or financial company with a short-term commercial paper rating of at least A-1
or the equivalent thereof by S&P or at least  P-1 or the equivalent thereof by
Moody's  (any such  company,  an "Approved  Company"),  or guaranteed  by  any
industrial company with a long term unsecured debt rating of at least A or A2,
or the equivalent  of each thereof, from  S&P or Moody's, as the  case may be,
and in each case maturing within six  months after the date of acquisition and
(v) investments  in money market funds  substantially all of whose  assets are
comprised  of securities of  the type  described in  clauses (i)  through (iv)
above.

            "Cash  Proceeds"  shall  mean,  with  respect  to  any  Collateral
Disposition, the aggregate cash  payments (including any cash received  by way
of deferred payment  pursuant to a note  receivable issued in connection  with
such Collateral Disposition, other  than the portion of such  deferred payment
constituting interest, but only as and when so received) received by  Holdings
and/or any Subsidiary from such Collateral Disposition.

            "CBK" shall mean Christiania Bank og Kreditkasse, New York Branch.

            "CERCLA"  shall  mean  the  Comprehensive  Environmental Response,
Compensation, and Liability Act of 1980, as amended, 42 U.S.C.  9601 et seq.

            "Change  of Control"  shall mean  (a) Holdings  shall at  any time
cease  to own  100% of  the  capital stock  of  the Borrower  or, directly  or
indirectly,  any Subsidiary Guarantor, (b) any  "person" (as such term is used
in Sections 13(d) and 14(d) of the Exchange Act), is or becomes the beneficial
owner  (as defined in Rules 13d-3 and  13d-5 under the Exchange Act), directly
or  indirectly, of more than 50% of the total voting power of the Voting Stock
of Holdings  or (c) during any period of two consecutive years individuals who
at the beginning of such period constituted the Board of Directors of Holdings
(together with any new directors whose  election by such Board of Directors or
whose nomination  for election by the stockholders of Holdings was approved by
a vote  of a majority of  the directors of  Holdings then still in  office who
were either directors  at the beginning  of such period  or whose election  or
nomination  for election was  previously so approved) cease  for any reason to
constitute a majority of the Board of Directors of Holdings then in office.

            "Claims"  shall have  the meaning  provided in  the definition  of
"Environmental Claims."

            "Code"  shall mean the Internal  Revenue Code of  1986, as amended
from  time to  time and  the  regulations promulgated  and the  rulings issued
thereunder.   Section references to the Code are to  the Code, as in effect at
the  Effective  Date and  any subsequent  provisions  of the  Code, amendatory
thereof, supplemental thereto or substituted therefor.

            "Collateral" shall mean all  of the Security Agreement Collateral,
the Pledged Stock as defined in the Pledge Agreement, the "Rig"  as defined in
each  of the  Mortgages and  any cash  collateral delivered to  the Collateral
Agent pursuant to this Agreement.

            "Collateral Agent"  shall mean the Administrative  Agent acting as
collateral agent for the Banks.

            "Collateral  Disposition" shall  mean  (i) the  sale, transfer  or
other voluntary  disposition by the  Borrower or  any Guarantor to  any Person
other than the Borrower or  any Guarantor of any asset of the Borrower or such
Guarantor constituting Collateral or (ii) any Total Loss of any Mortgaged Rig.

            "Commitment" shall mean, with respect to each Bank, the amount set
forth opposite such Bank's name in Annex I directly below  the column entitled
"Commitment,"  as the same may  be (x) reduced  from time to  time pursuant to
Sections 3.02, 3.03 and/or  9 or (y) adjusted from time to time as a result of
assignments to or from such Bank pursuant to Section 12.04.

            "Commitment  Commission"  shall  have   the  meaning  provided  in
Section 3.01(a).

            "Consolidated  Capital Expenditures"  shall mean, for  any period,
the  aggregate  of  all expenditures  (whether  paid  in  cash or  accrued  as
liabilities  and including in all  events all amounts  expended or capitalized
under  Capital Leases)  by Holdings  and its  Subsidiaries during  that period
that, in  conformity with  GAAP, are  or are  required to  be included  in the
property,  plant or equipment reflected  in the consolidated  balance sheet of
Holdings and its Subsidiaries, provided that Consolidated Capital Expenditures
shall  in any  event include the  purchase price  paid in  connection with the
acquisition  of  any Person  (including through  the  purchase of  all  of the
capital stock or other ownership interests of such Person or through merger or
consolidation)  to the extent  allocable to  "drilling  and other property and
equipment" provided further, that Consolidated Capital Expenditures shall only
include the amount thereof actually paid in cash during such period.

            "Consolidated Current  Assets" shall  mean, the current  assets of
Holdings and its Subsidiaries determined on a consolidated basis in accordance
with GAAP, including cash and Cash Equivalents.

            "Consolidated   Current  Liabilities"  shall   mean,  the  current
liabilities of  Holdings and  its  Subsidiaries determined  on a  consolidated
basis in accordance with GAAP, but excluding (i) the current portion under the
Holdings Convertible Debentures and (ii) the current liability associated with
the  required repayment of Loans  in connection with  the Scheduled Commitment
Reduction occurring on the Maturity Date.

            "Consolidated EBIT" shall mean, for any period, (A) the sum of the
amounts for such  period of (i)  Consolidated Net Income, (ii)  provisions for
taxes based on income, (iii) Consolidated Interest  Expense, (iv) amortization
or write-off of deferred financing costs to the extent deducted in determining
Consolidated Net Income and (v) loss-es on sales of assets (excluding sales in
the ordinary course of  business) and other extraordinary losses less  (B) the
amount for such  period of gains on  sales of assets  (excluding sales in  the
ordinary  course of business) and other extraordinary gains, all as determined
on a consolidated basis in accordance with GAAP.

            "Consolidated  EBITDAR" shall mean, for any period, the sum of the
amounts for such period  of (i) Consolidated EBIT, (ii)  depreciation expense,
(iii)  amortization  expense  and  (iv)  Consolidated  Rent  Expense,  all  as
determined on a consolidated basis in accordance with GAAP.

            "Consolidated Funded Indebtedness" shall mean, all Indebtedness of
Holdings and its Subsidiaries calculated on a consolidated basis in accordance
with GAAP; provided that with respect to calculations made pursuant to Section
8.10  only,  Funded  Debt  shall  exclude  up  to  $200,000,000  of  unsecured
subordinated debt issued by Holdings in one or more public offerings following
the Initial Borrowing Date,  which shall (i) mature  after the Maturity  Date,
(ii) not have any principal payments prior to the Maturity Date, and (iii)  be
explicitly subordinated to this Facility.

            "Consolidated Interest Expense" shall  mean, for any period, total
interest  expense (including that attributable to  Capital Leases) of Holdings
and its  Subsidiaries in  accordance with  GAAP on  a consolidated  basis with
respect  to all  outstanding Indebtedness  of Holdings  and  its Subsidiaries,
including, without limitation,  all commissions, discounts and  other fees and
charges  owed  with  respect to  letters  of  credit  and bankers'  acceptance
financing.

            "Consolidated  Net Income"  shall  mean for  any  period, the  net
income (or loss) of Holdings and its Subsidiaries on a  consolidated basis for
such period  taken as a single accounting period determined in conformity with
GAAP.

            "Consolidated  Net Worth"  shall mean,  at any  time, shareholders
equity  (excluding treasury  stock)  of Holdings  and  its Subsidiaries  on  a
consolidated basis determined in accordance with GAAP.

            "Consolidated  Rent Expense" shall  mean for any  period, the rent
expense of Holdings  and its  Subsidiaries on  a consolidated  basis for  such
period taken as a single accounting period determined in accordance with GAAP.

            "Contingent  Obligations"   shall  mean  as  to   any  Person  any
obligation  of  such  Person  guaranteeing  or  intending  to   guarantee  any
Indebtedness  ("primary  obligations")  of  any  other  Person  (the  "primary
obligor") in any  manner, whether directly  or indirectly, including,  without
limitation, any  obligation of such Person, whether  or not contingent, (a) to
purchase  any such primary obligation  or any property  constituting direct or
indirect  security  therefor, (b)  to  advance  or supply  funds  (i) for  the
purchase or payment of any such primary obligation or (ii) to maintain working
capital or  equity capital of the primary obligor or otherwise to maintain the
net  worth or  solvency  of the  primary  obligor, (c)  to purchase  property,
securities or services primarily for the  purpose of assuring the owner of any
such primary  obligation of the ability of the primary obligor to make payment
of such primary  obligation or (d)  otherwise to assure  or hold harmless  the
owner  of such primary obligation  against loss in  respect thereof, provided,
however, that the term Contingent Obligation shall not include endorsements of
instruments for deposit or collection in the ordinary course of business.  The
amount of any Contingent  Obligation shall be deemed to be an  amount equal to
the  stated or  determinable amount  of the  primary obligation in  respect of
which such  Contingent Obligation is made  or, if not stated  or determinable,
the maximum reasonably anticipated liability in respect thereof (assuming such
Person is required to perform thereunder) as determined by such Person in good
faith.

            "Credit  Documents"  shall mean  this  Agreement,  the Notes,  the
Security  Documents and each Guaranty and any documents executed in connection
therewith.

            "Credit Event" shall mean and include the making of a  Loan or the
issuance of a Letter of Credit.

            "Credit  Party"  shall  mean   Holdings,  the  Borrower  and  each
Subsidiary Guarantor.

            "Default" shall mean any event, act or condition which with notice
or lapse of time, or both, would constitute an Event of Default.

            "Defaulting Bank" shall mean any Bank with respect to which a Bank
Default is in effect.

            "Dividends" shall have the meaning provided in Section 8.05.

            "Documentation  Agents" shall  have  the meaning  provided in  the
first paragraph of this Agreement.

            "Earnings" shall  have the  definition provided   in the  Security
Agreement.

            "Effective Date" shall have the meaning provided in Section 12.10.

            "Eligible Transferee"  shall mean  and include a  commercial bank,
financial institution or other "accredited investor" (as defined by Regulation
D of the Securities Act of 1933).

            "Employee Benefit Plan" shall have the meaning provided in Section
5.06(i).

            "Employment Agreements" shall have the meaning provided in Section
5.06(vi).

            "Environmental   Claims"   means  any   and   all  administrative,
regulatory or judicial actions, suits, demands, demand letters, claims, liens,
notices  of noncompliance  or violation,  investigations (other  than internal
reports prepared by Holdings or any of its Subsidiaries solely in the ordinary
course of such Person's business and not in response to any third party action
or  request   of  any  kind)  or  proceedings  relating  in  any  way  to  any
Environmental Law or any permit issued, or any approval given,  under any such
Environmental  Law  (hereafter,   "Claims"),  including,  without  limitation,
(a) any  and  all  Claims  by   governmental  or  regulatory  authorities  for
enforcement, cleanup, removal, response, remedial or  other actions or damages
pursuant to  any applicable Environmental Law,  and (b) any and  all Claims by
any third party seeking damages, contribution, indemnification, cost recovery,
compensation or  injunctive relief resulting from  Hazardous Materials arising
from alleged injury or threat of injury to health, safety or the environment.

            "Environmental Law"  means any applicable  Federal, state, foreign
or  local statute, law, rule,  regulation, ordinance, code,  guide, policy and
rule of common law now or hereafter in effect and in each case as amended, and
any judicial or administrative  interpretation thereof, including any judicial
or  administrative  order,  consent  decree  or  judgment,  relating   to  the
environment, health, safety or Hazardous Materials, including, without limita-
tion, CERCLA; RCRA;  the Federal Water Pollution  Control Act, as amended,  33
U.S.C.  1251 et  seq.; the Toxic Substances Control Act,  15 U.S.C.  7401 et
seq.;  the Clean Air Act,  42 U.S.C.  7401  et seq.; the  Safe Drinking Water
Act, 42 U.S.C.  3808 et seq.; the Oil Pollution Act of 1990, 33 U.S.C.  2701
et seq. and  any applicable state and local or  foreign counterparts or equiv-
alents.

            "ERISA" shall  mean the Employee Retirement Income Security Act of
1974,  as  amended from  time to  time,  and the  regulations  promulgated and
rulings issued  thereunder.  Section references  to ERISA are to  ERISA, as in
effect  at the Effective  Date and any subsequent  provisions of ERISA, amend-
atory thereof, supplemental thereto or substituted therefor.

            "ERISA Affiliate"  shall mean each  person (as defined  in Section
3(9) of  ERISA) which together with Holdings or any Subsidiary would be deemed
to be a "single employer" (i) within the meaning of  Sections 414(b), (c), (m)
and (o) of the Code or (ii) as a result of Holdings or any Subsidiary being or
having been a general partner of such person.

            "Eurodollar Loans"  shall mean each  Loan bearing interest  at the
rates provided in Section 1.08(b).

            "Eurodollar Rate" shall mean with  respect to each Interest Period
for a  Loan, the  offered  rate (rounded  upward to  the nearest  1/16 of  one
percent) for deposits  of Dollars for a period equivalent to such period at or
about 11:00  A.M. (London time)  on the second  London Banking Day  before the
first  day  of such  period as  is displayed  on  Telerate page  3750 (British
Bankers' Association Interest  Settlement Rates)  (or such other  page as  may
replace  such  page  3750  on  such  system or  on  any  other  system  of the
information  vendor  for the  time being  designated  by the  British Bankers'
Association  to calculate the BBA Interest Settlement  Rate (as defined in the
British  Bankers'  Association's Recommended  Terms  and  Conditions ("BBAIRS"
terms) dated  August 1985)), provided that if on such  date no such rate is so
displayed, the Eurodollar Rate for such period shall be the rate quoted to the
Administrative Agent as the offered rate  for deposits of Dollars in an amount
approximately equal  to the amount in relation to which the Eurodollar Rate is
to be determined for a period equivalent  to such period by prime banks in the
London Interbank  Market at or  about 11:00 A.M.  (London time) on  the second
Banking Day before the first day of such period.

            "Event of Default" shall have the meaning provided in Section 9.

            "Existing  Credit Agreements"  shall  mean the  Credit  Agreement,
dated  as of  April 30,  1996, by  and among  Holdings, the  Borrower, various
lending  institutions,  Credit Lyonnais,  New  York  Branch, as  Co-Agent  and
Christiania Bank og Kreditkasse, as Agent, and the Loan Agreement, dated as of
May 25, 1995, by and among  The CIT Group/Equipment Financing, Inc., Reading &
Bates Offshore, Limited and Holdings.

            "Existing Indebtedness" shall have the meaning provided in Section
6.19.

            "Existing Indebtedness Agreements" shall have the meaning provided
in Section 5.06.

            "Existing  Letter of  Credit" shall  have the meaning  provided in
Section 2.01(a).

            "Facility" shall  mean the credit facility  established under this
Agreement, evidenced by the Total Commitment.

            "Facing Fee" shall have the meaning provided in Section 3.01(c).

            "Federal  Funds Effective  Rate"  shall  mean  for any  period,  a
fluctuating  interest rate  equal  for each  day  during  such period  to  the
weighted average of  the rates  on overnight Federal  Funds transactions  with
members of  the Federal Reserve System  arranged by Federal  Funds brokers, as
published for such day  (or, if such day is  not a Business Day, for  the next
preceding Business Day) by the Federal  Reserve Bank of New York, or,  if such
rate is not so published  for any day which is a Business Day,  the average of
the  quotations  for   such  day   on  such  transactions   received  by   the
Administrative Agent from three Federal  Funds brokers of recognized  standing
selected by the Administrative Agent.

            "Fees"  shall mean all amounts payable pursuant to, or referred to
in, Section 3.01.

            "Foreign Pension  Plan" means  any plan, fund  (including, without
limitation,  any superannuation fund) or  other similar program established or
maintained outside the United States of America by Holdings or any one or more
of its Subsidiaries primarily for the benefit of employees of Holdings or such
Subsidiaries residing outside the  United States of America, which  plan, fund
or  other  similar  program provides,  or  results  in,  retirement income,  a
deferral of  income in contemplation of retirement or payments to be made upon
termination of employment, and which plan is not subject to ERISA or the Code.

            "GAAP" shall mean generally  accepted accounting principles in the
United States of America as  in effect on the date of this Agreement; it being
understood and agreed that determinations in accordance with GAAP for purposes
of  Section 8, including  defined terms as  used therein, are  subject (to the
extent provided therein) to Section 12.07(a).

            "Guaranteed   Obligations"  shall  mean  all  obligations  of  the
Borrower to each Bank for the full and prompt payment when due (whether at the
stated maturity, by acceleration  or otherwise) of the principal  and interest
on each Note issued by  the Borrower to such  Bank, and Loans made, under  the
Credit Agreement and  all reimbursement obligations  and Unpaid Drawings  with
respect to Letters of Credit, together with all the other obligations and lia-
bilities  (including,  without  limitation,  indemnities,  fees  and  interest
thereon)  of the  Borrower to  such Bank  now  existing or  hereafter incurred
under, arising out of or in connection with the Credit Agreement or any  other
Credit Document  and the due  performance and  compliance with all  the terms,
conditions and agreements contained in the Credit Documents by the Borrower.

            "Guarantor" shall mean each Subsidiary Guarantor and Holdings.

            "Guaranty" shall mean the guaranty of Holdings pursuant to Section
13 hereof and the Subsidiaries Guaranty.

            "Hazardous  Materials"  means  (a)  any  petroleum   or  petroleum
products, radioactive materials,  asbestos in any form that is or could become
friable, urea  formaldehyde foam  insulation, transformers or  other equipment
that contained, electric fluid containing levels of polychlorinated biphenyls,
and  radon gas;  (b)  any chemicals,  materials  or substances  defined as  or
included  in  the definition  of  "hazardous  substances," "hazardous  waste,"
"hazardous  materials," "extremely  hazardous  waste,"  "restricted  hazardous
waste,"   "toxic   substances,"   "toxic   pollutants,"   "contaminants,"   or
"pollutants," or words  of similar import, under any  applicable Environmental
Law;  and (c) any other chemical, material  or substance, exposure to which is
prohibited, limited or regulated by any governmental authority.

            "Holdings" shall have the meaning provided in the first  paragraph
of this Agreement.

            "Holdings Convertible  Debentures" shall mean Holdings'  8% Senior
Subordinated Convertible Debentures due December 1998.

            "Indebtedness" of  any Person  shall mean without  duplication (i)
all indebtedness of such Person for borrowed money, (ii) the deferred purchase
price of assets or  services which in accordance  with GAAP would be shown  on
the liability side of the balance sheet of such  Person, (iii) the face amount
of  all letters of credit  issued for the account of  such Person and, without
duplication,  all drafts drawn thereunder,  (iv) all Indebtedness  of a second
Person secured by any Lien on any property owned by such first Person, whether
or  not  such  indebtedness  has  been  assumed,  (v)  all  Capitalized  Lease
Obligations  of such  Person, (vi)  all obligations  of such  Person to  pay a
specified  purchase price for  goods or services  whether or not  delivered or
accepted, i.e., take-or-pay and similar obligations, (vii) all net obligations
of  such Person  under  Interest Rate  Agreements  and (viii)  all  Contingent
Obligations of such Person (other than Contingent Obligations arising from the
guaranty  by such Person  of the obligations of  Holdings, the Borrower and/or
their respective  Subsidiaries to the  extent such guaranteed  obligations are
permitted under this Agreement); provided that  Indebtedness shall not include
(x) trade payables and accrued expenses,  in each case arising in the ordinary
course of  business and (y) Indebtedness of a direct or indirect Subsidiary of
Holdings  (the  "Relevant Subsidiary"),  of  which neither  Holdings,  nor the
Borrower, nor any of their Subsidiaries other than the  Relevant Subsidiary is
liable or obligated in any manner.

            "Initial  Borrowing  Date"  shall mean  the  date  upon  which the
initial Borrowing of Loans occurs.

            "Interest Period" with respect to any Loan shall mean the interest
period applicable thereto, as determined pursuant to Section 1.09.

            "Interest  Rate  Agreement"  shall  mean any  interest  rate  swap
agreement, any interest rate cap agreement, any interest rate collar agreement
or other similar agreement or arrangement designed to protect any Credit Party
against interest rate risk.

            "L/C Supportable  Obligations" shall mean such  obligations of the
Borrower, the  Guarantors or  their Subsidiaries  (other  than obligations  in
respect of  Indebtedness) as  are not inconsistent  with the  policies of  the
Letter of Credit Issuer.

            "Leasehold"  of any  Person  means all  of  the right,  title  and
interest of  such Person  as lessee  or licensee in,  to and  under leases  or
licenses of land, improvements and/or fixtures.

            "Letter of  Credit" shall  have  the meaning  provided in  Section
2.01(a).

            "Letter  of Credit Fee" shall have the meaning provided in Section
3.01(b).

            "Letter  of   Credit  Issuer"  shall  mean   Christiania  Bank  og
Kreditkasse, New York Branch.

            "Letter of Credit Outstandings"  shall mean, at any time,  the sum
of,  without duplication, (i) the  aggregate Stated Amount  of all outstanding
Letters of  Credit and (ii)  the aggregate  amount of all  Unpaid Drawings  in
respect of all Letters of Credit.

            "Letter  of Credit  Request" shall  have  the meaning  provided in
Section 2.02(a).

            "Leverage  Ratio" shall mean,  at any  date of  determination, the
ratio of Consolidated Funded Indebtedness on such date to Total Capitalization
on such date.

            "Lien"  shall  mean  any  mortgage,   pledge,  security  interest,
security  title,  encumbrance,  lien or  charge  of  any  kind (including  any
agreement to  give any of the  foregoing, any conditional sale  or other title
retention agreement or  any lease in  the nature  thereof) other than  arising
from an event constituting a Total Loss.

            "Loan" shall have the meaning provided in Section 1.01.

            "Margin Stock" shall have the meaning provided in Regulation U.

            "Market Value"  shall mean as of any date of calculation the value
as of such date  of any offshore drilling rig or other  vessel provided in the
most recent valuation report delivered in connection with Section 5.15(ii) and
Section 7.11, or in the  case two reports have been supplied as  of such date,
the arithmetic mean of the values provided in such reports.

            "Material Adverse Effect" shall mean  a material adverse effect on
the business, property, assets, liabilities, operations, condition  (financial
or otherwise) or  prospects of the Borrower  or Holdings and its  Subsidiaries
taken as a whole.

            "Maturity  Date" shall mean the date that is the fifth anniversary
of the Effective Date.

            "Minimum Borrowing Amount" shall mean $1,000,000.

            "Mortgage" shall have the meaning provided in Section 5.13(b).

            "Mortgaged  Rigs"   shall  mean  and  include  the  US  Rigs,  the
Panamanian Rigs and the Australian Rig.

            "Mortgagor" shall mean each Credit Party party to a Mortgage.

            "Non-Defaulting Bank" shall mean each Bank other than a Defaulting
Bank.

            "Note" shall have the meaning provided in Section 1.05(a).

            "Notice of Borrowing"  shall have the meaning  provided in Section
1.03.

            "Notice  of Conversion" shall have the meaning provided in Section
1.06.

            "Notice Office" shall mean the office of  the Administrative Agent
at  11 West  42nd Street, 7th  Floor, New York,  New York 10036  or such other
office as the Administrative Agent may  designate to the Borrower from time to
time.

            "Obligations"  shall  mean  all   amounts,  direct  or   indirect,
contingent  or  absolute, of  every  type  or  description,  and at  any  time
existing, owing to the Administrative Agent, the  Collateral Agent or any Bank
pursuant to the terms of this Agreement or any other Credit Document.

            "Panamanian Mortgage"  shall have the meaning  provided in Section
5.13(a).

            "Panamanian Rigs" shall mean the offshore drilling vessels Charley
Graves, J.W. McLean, and Rig 41.

            "Participant" shall have the meaning provided in Section 2.04(a). 

            "Payment Office" shall mean the office of the Administrative Agent
at  11 West 42nd  Street, 7th Floor,  New York, New  York 10036 or  such other
office as  the Administrative Agent may designate to the Borrower from time to
time.

            "PBGC"  shall  mean  the  Pension  Benefit  Guaranty   Corporation
established pursuant to Section 4002 of ERISA, or any successor thereto.

            "Percentage" shall mean  for each Bank the  percentage obtained by
dividing such  Bank's Commitment by the Total Commitment, provided that if the
Total Commitment has  been terminated,  the Percentage of  each Bank shall  be
determined  by  dividing such  Bank's  Commitment  immediately  prior to  such
termination by the Total Commitment immediately prior to such termination.

            "Permitted Liens"  shall mean  Liens described in  Section 8.03(a)
through (g).

            "Person"  shall mean any  individual, partnership,  joint venture,
firm, corporation, association, trust or other enterprise or any government or
political subdivision or any agency, department or instrumentality thereof.

            "Plan"  shall mean  any multiemployer  or single-employer  plan as
defined in Section 4001 of ERISA, which is maintained or contributed to by (or
to which there is  an obligation to contribute of) Holdings or a Subsidiary of
Holdings or an ERISA Affiliate.

            "Pledge  Agreement" shall  have  the meaning  provided in  Section
5.17.

            "Prime Rate" shall mean the rate which CBK announces  from time to
time as its  prime lending  rate, the Prime  Rate to change  when and as  such
prime lending rate changes.

            "Projections" shall have the meaning set forth in Section 6.10(d).

            "RCRA" shall mean  the Resource Conservation and  Recovery Act, as
amended, 42 U.S.C.  6901 et seq.

            "Real Property" of  any Person shall mean all of  the right, title
and  interest  of such  Person  in  and to  land,  improvements  and fixtures,
including Leaseholds.

            "Register" shall have the meaning provided in Section 12.16.

            "Regulation D" shall mean  Regulation D of the Board  of Governors
of the Federal Reserve System as from time to time in effect and any successor
to all or a portion thereof establishing reserve requirements.

            "Regulation U" shall mean  Regulation U of the Board  of Governors
of the Federal Reserve System as from time to time in effect and any successor
to all or a portion thereof establishing margin requirements.

            "Relevant  Subsidiary"  shall have  the  meaning  provided in  the
definition of Indebtedness.

            "Replaced Bank" shall have the meaning provided in Section 1.12.

            "Replacement  Bank" shall  have  the meaning  provided in  Section
1.12.

            "Reportable  Event"  shall  mean  an event  described  in  Section
4043(c) of ERISA with  respect to a Plan other  than those events as  to which
the 30-day notice period is waived under subsection .13, .14, .16, .18, .19 or
 .20 of PBGC Regulation Section 2615.

            "Required Banks" shall mean Non-Defaulting Banks whose outstanding
Commitments  (or,  if after  the Total  Commitment  has been  terminated, out-
standing  Loans and Adjusted Percentage of Letter of Credit Outstandings) con-
stitute greater  than 50% of the  Adjusted Total Commitment (or,  if after the
Total  Commitment has  been terminated,  the total  outstanding Loans  of Non-
Defaulting  Banks and the aggregate Adjusted Percentages of all Non-Defaulting
Banks of the total Letter of Credit Outstandings at such time).

            "Scheduled Commitment Reduction" shall  have the meaning  provided
in Section 3.03(b).

            "SEC" shall  mean the  Securities and  Exchange Commission  or any
successor thereto.

            "Section 4.04(b)(ii) Certificate" shall have  the meaning provided
in Section 4.04(b)(ii).

            "Secured  Creditors"  shall  have  the meaning  set  forth  in the
Security Documents.

            "Security Agreement"  shall have  the meaning provided  in Section
5.11.

            "Security Agreement  Collateral"  shall mean  all "Collateral"  as
defined in the Security Agreement.

            "Security  Documents"   shall  mean   and  include   the  Security
Agreement, the Pledge Agreement and each Mortgage.

            "Security Trustee" shall mean Christiania Bank og Kreditkasse, New
York Branch, as trustee for the Banks with respect to  the U.S. Mortgages, and
any successor trustee appointed in accordance with the terms hereof.

            "Stated  Amount" of each Letter  of Credit shall  mean the maximum
available to be  drawn thereunder  (regardless of whether  any conditions  for
drawing could then be met).

            "Subsidiary"  of  any  Person  shall  mean  and  include  (i)  any
corporation more than 50% of whose stock of any class or classes having by the
terms thereof  ordinary voting power to  elect a majority of  the directors of
such corporation  (irrespective of whether  or not  at the time  stock of  any
class or classes of such corporation shall have or might  have voting power by
reason  of the  happening of  any contingency)  is at the  time owned  by such
Person directly or  indirectly through Subsidiaries and  (ii) any partnership,
association, joint  venture or other entity  in which such  Person directly or
indirectly through Subsidiaries, has  more than a 50%  equity interest at  the
time.     Unless  otherwise  expressly  provided,  all  references  herein  to
"Subsidiary" shall mean a Subsidiary of Holdings.

            "Subsidiary Guarantor" shall mean  each Subsidiary of the Borrower
which owns a Mortgaged Rig and executes the Subsidiary Guaranty.

            "Subsidiary Guaranty"  shall have the meaning  provided in Section
5.12.

            "Substitute  Basis" shall  have  the meaning  provided in  Section
1.09(b).

            "Taxes" shall have the meaning provided in Section 4.04(a).

            "Total  Capitalization" shall  mean,  at  any  time,  the  sum  of
Consolidated Funded Indebtedness and Consolidated Net Worth at such time.

            "Total  Commitment"  shall  mean, at  any  time,  the  sum of  the
Commitments of each of the Banks.

            "Total  Loss"  shall  mean any  "Total  Loss"  as  defined in  any
Mortgage.

            "Total  Unutilized Commitment"  shall mean,  at any time,  (i) the
Total  Commitment at such  time less (ii)  the sum of  the aggregate principal
amount of  all Loans at such  time plus the  Letter of Credit  Outstandings at
such time.

            "Type" shall mean any type of Loan  determined with respect to the
interest option applicable thereto, i.e., a Base Rate Loan or Eurodollar Loan.

            "UCC" shall mean the Uniform Commercial Code.

            "Unfunded Current Liability" of any Plan means the amount, if any,
by  which the actuarial  present value of the  accumulated plan benefits under
the Plan as of the close of its most recent plan year exceeds the  fair market
value  of the  assets allocable  thereto, each  determined in  accordance with
Statement of Financial Accounting  Standards No. 87, based upon  the actuarial
assumptions used by the Plan's actuary in the most recent  annual valuation of
the Plan.

            "Unpaid  Drawing"  shall  have  the meaning  provided  in  Section
2.03(a).

            "Unutilized Commitment" for  each Bank, shall  mean the excess  of
(i) the  Commitment of such Bank over  (ii) the sum of  (x) the aggregate out-
standing principal amount of Loans made by  such Bank plus (y) an amount equal
to  such Bank's  Adjusted Percentage of  the Letter of  Credit Outstandings at
such time.

            "U.S.  Dollar  Equivalent"   shall  mean,  at  any  time  for  the
determination  thereof, the amount of  U.S. Dollars necessary  to purchase the
amount of the relevant currency  at the spot exchange rate therefor  as quoted
by  the Administrative Agent as  of 11:00 A.M.  (London time) on  the date two
Business Days prior  to the date of any determination  thereof for purchase on
such date.

            "U.S. Dollars" shall mean freely transferable lawful money  of the
United States.

            "US Mortgage" shall have the meaning provided in Section 5.13(a).

            "US  Rigs" shall  mean the offshore  drilling vessels  Jack Bates,
D.R. Stewart,  W.D. Kent, F.G. McClintock, Randolph Yost, J.T. Angel, Roger W.
Mowell, Harvey H. Ward, George H. Galloway and C.E. Thornton.

            "Voting Stock"  shall mean, with  respect to any  corporation, the
outstanding stock of  all classes (or equivalent interests)  which ordinarily,
in the  absence of  contingencies, entitles holders  thereof to  vote for  the
election  of  directors (or  Persons  performing  similar functions)  of  such
corporation,  even  though the  right so  to vote  has  been suspended  by the
happening of such a contingency.

            "Wholly-Owned Subsidiary" of any  Person shall mean any Subsidiary
of  such Person  to the  extent all  of the  capital stock or  other ownership
interests  in such  Subsidiary,  other than  directors'  qualifying shares  or
shares  held by a  nominee or in trust  for such Person,  is owned directly or
indirectly by such Person.

            "Working Capital"  shall mean  the excess of  Consolidated Current
Assets  over  Consolidated  Current  Liabilities  exclusive  of  the  Holdings
Convertible Debentures.

            "Written"  or  "in  writing"  shall  mean   any  form  of  written
communication or a communication by means of telex or facsimile transmission.

            SECTION 11.  The Administrative Agent and the Security Trustee.

            11.01 Appointment of  the Administrative  Agent  and the  Security
Trustee.  (a)  The Banks hereby designate Christiania Bank og Kreditkasse, New
York Branch  as Administrative Agent  to act  as specified herein  and in  the
other Credit Documents.   Each  Bank hereby irrevocably  authorizes, and  each
holder of any Note by the acceptance of such Note shall be deemed  irrevocably
to authorize, the Administrative Agent to take such action on its behalf under
the provisions of  this Agreement, the  other Credit  Documents and any  other
instruments and agreements referred to herein or therein and  to exercise such
powers and to perform such duties hereunder and thereunder as are specifically
delegated  to or required of the Administrative  Agent by the terms hereof and
thereof  and such  other powers  as are  reasonably incidental  thereto.   The
Administrative Agent may perform any of its duties hereunder by or through its
respective officers, directors, agents, employees or Affiliates. 

            (b)  Each of  the Banks  irrevocably appoints Christiania  Bank og
Kreditkasse, New  York Branch  as security trustee  solely for the  purpose of
holding legal title to the Mortgages of each of the U.S. Rigs on behalf of the
Banks with regard  to the (i) security,  powers, rights, titles, benefits  and
interests (both present and future) constituted by and conferred  on the Banks
or any  of  them or  for the  benefit  thereof under  or  pursuant to  the  US
Mortgages  (including,  without  limitation,  the benefit  of  all  covenants,
undertakings, representations,  warranties  and  obligations  given,  made  or
undertaken to  any Bank in  the US Mortgages),  (ii) all moneys,  property and
other assets paid or  transferred to or vested in any Bank or any agent of any
Bank or received or recovered  by any Bank or  any agent of any Bank  pursuant
to,  or in connection with, the US Mortgages, whether from the Borrower or any
Guarantor or any other person and  (iii) all money, investments, property  and
other  assets at any time representing or  deriving from any of the foregoing,
including  all  interest,  income and  other  sums  at  any  time received  or
receivable by any Bank or any agent of any Bank in respect of the same (or any
part thereof).  CBK hereby accepts such appointment as security trustee.

            (c)  For  purposes of  this Section  11, the  term "Administrative
Agent" shall include CBK  in its capacity as Collateral  Agent, Administrative
Agent and Security Trustee.

            11.02  Nature of Duties.  The Administrative Agent shall  not have
any  duties or  responsibilities  except those  expressly  set forth  in  this
Agreement  and the other Credit  Documents.  Neither  the Administrative Agent
nor any of its respective officers, directors, agents, employees or Affiliates
shall be  liable for any  action taken or omitted  by it or  them hereunder or
under any other Credit Document or in connection herewith or therewith, unless
caused by its or their gross negligence or  willful misconduct.  The duties of
the Administrative Agent shall be mechanical and administrative in nature; the
Administrative Agent shall not have  by reason of this Agreement or  any other
Credit Document a fiduciary relationship in respect of any Bank  or the holder
of  any Note;  and nothing  in this  Agreement or  any other  Credit Document,
expressed  or implied, is  intended to or  shall be so construed  as to impose
upon the Administrative Agent  any obligations in respect of this Agreement or
any other Credit Document except as expressly set forth herein or therein.

            11.03  Lack of Reliance on the Administrative Agent. Independently
and without reliance upon  the Administrative Agent, each Bank  and the holder
of each Note, to the extent it deems appropriate, has made and shall  continue
to make (i)  its own independent investigation of the  financial condition and
affairs of Holdings and its Subsidiaries in connection with the making and the
continuance  of  the Loans  and issuance  and/or  participation in  Letters of
Credit and the taking  or not taking of any action  in connection herewith and
(ii) its  own appraisal of the  creditworthiness of Holdings  and its Subsidi-
aries  and, except as expressly provided in this Agreement, the Administrative
Agent shall not have any duty or responsibility, either initially or on a con-
tinuing basis, to provide any Bank or  the holder of any Note with any  credit
or  other information with respect thereto, whether coming into its possession
before  the making  of the  Loans or  at any  time or  times thereafter.   The
Administrative Agent shall not be responsible to any Bank or the holder of any
Note for any recitals,  statements, information, representations or warranties
herein or in any  document, certificate or other writing delivered  in connec-
tion  herewith or  for  the execution,  effectiveness, genuineness,  validity,
enforceability, perfection,  collectibility, priority or  sufficiency of  this
Agreement or  any other Credit Document or the financial condition of Holdings
and its Subsidiaries or be required to make any inquiry  concerning either the
performance or  observance of any  of the  terms, provisions or  conditions of
this  Agreement or any  other Credit Document,  or the  financial condition of
Holdings and its  Subsidiaries or the  existence or possible existence  of any
Default or Event of Default.

            11.04  Certain Rights  of  the   Administrative  Agent.    If  the
Administrative  Agent shall request instructions from  the Required Banks with
respect  to any act  or action (including  failure to act)  in connection with
this Agreement or any other Credit Document, the Administrative Agent shall be
entitled to  refrain from such act or taking  such action unless and until the
Administrative Agent shall have received instructions from the Required Banks;
and the Administrative Agent shall not incur liability to any Person by reason
of so  refraining.  Without limiting  the foregoing, neither any  Bank nor the
holder  of any  Note shall  have any  right of  action whatsoever  against the
Administrative Agent  as a result  of the Administrative  Agent acting or  re-
fraining from acting  hereunder or under any  other Credit Document  in accor-
dance with the instructions of the Required Banks.

            11.05  Reliance.  The  Administrative Agent  shall be  entitled to
rely,  and  shall  be fully  protected  in relying,  upon  any  note, writing,
resolution,  notice,  statement, certificate,  telex,  teletype or  telecopier
message, cablegram,  radiogram, order or  other document or  telephone message
signed, sent or made by  any Person that the Administrative Agent  believed to
be the proper  Person, and, with  respect to all  legal matters pertaining  to
this  Agreement and  any other Credit  Document and  its duties  hereunder and
thereunder, upon advice of counsel selected by the Administrative Agent (which
may be counsel for Holdings and/or the Borrower).

            11.06  Indemnification. To the  extent the Administrative Agent is
not reimbursed  and indemnified by the Borrower,  the Banks will reimburse and
indemnify  the  Administrative  Agent,   in  proportion  to  their  respective
"percentages" as used in determining the  Required Banks, for and against  any
and all liabilities, obligations, losses, damages, penalties, claims, actions,
judgments,  suits,  costs, expenses  or  disbursements of  whatsoever  kind or
nature  which  may  be  imposed  on,  asserted  against  or  incurred  by  the
Administrative Agent  in performing its  respective duties hereunder  or under
any other  Credit Document,  in any way  relating to  or arising  out of  this
Agreement or any other Credit Document;  provided that no Bank shall be liable
for  any portion of such liabilities, obligations, losses, damages, penalties,
claims, actions, judgments, suits,  costs, expenses or disbursements resulting
from the Administrative Agent's gross negligence or willful misconduct.

            11.07  The Administrative Agent in Its Individual  Capacity.  With
respect   to  its  obligation  to   make  Loans  under   this  Agreement,  the
Administrative Agent shall have  the rights and powers specified herein  for a
"Bank" and may exercise the same rights and powers as though it were  not per-
forming the duties specified  herein; and the term "Banks,"  "Required Banks,"
"holders of  Notes" or  any similar  terms shall, unless  the context  clearly
otherwise  indicates,  include  the  Administrative Agent  in  its  individual
capacity.  The  Administrative Agent may accept deposits from,  lend money to,
and generally  engage in any  kind of  banking, trust or  other business  with
Holdings or  its Subsidiaries  or  any Affiliate  thereof as  if  it were  not
performing  the duties  specified  herein,  and  may  accept  fees  and  other
consideration from Holdings or any of its Subsidiaries for services in connec-
tion with this Agreement and otherwise without having to account  for the same
to the Banks.

            11.08  Holders. The  Administrative Agent may  deem and treat  the
payee of  any Note as  the owner thereof  for all  purposes hereof unless  and
until a written notice  of the assignment, transfer or endorsement thereof, as
the case may be,  shall have been  filed with the  Administrative Agent.   Any
request, authority or consent of any Personwho, at the time of making such re-
quest or giving such authority or consent, is the holder of  any Note shall be
conclusive  and  binding on  any  subsequent holder,  transferee,  assignee or
indorsee, as the case  may be, of such Note or of any  Note or Notes issued in
exchange therefor.

            11.09  Resignation  by  the  Administrative  Agent.     (a)    The
Administrative Agent may resign from the performance of all its functions  and
duties hereunder and/or under the other Credit Documents at any time by giving
15 Business Days' prior  written notice to the Borrower  and the Banks.   Such
resignation  shall   take  effect   upon  the   appointment  of   a  successor
Administrative  Agent pursuant to  clauses (b) and  (c) below  or as otherwise
provided below.

            (b)  Upon any such notice of resignation, the Required Banks shall
appoint  a successor Administrative Agent hereunder or thereunder who shall be
a commercial bank or trust company reasonably acceptable to the Borrower.

            (c)  If  a successor Administrative  Agent shall not  have been so
appointed within such 15  Business Day period, the Administrative  Agent, with
the consent of  the Borrower,  shall then appoint  a successor  Administrative
Agent  who shall serve as  Administrative Agent hereunder  or thereunder until
such time, if  any, as the Required  Banks appoint a successor  Administrative
Agent as provided above.

            (d)  If no successor Administrative  Agent has been appointed pur-
suant to clause (b) or (c) above by the 20th Business Day after the  date such
notice   of  resignation   was  given   by   the  Administrative   Agent,  the
Administrative  Agent's resignation  shall become  effective and  the Required
Banks  shall thereafter  perform all  the duties  of the  Administrative Agent
hereunder and/or under any other  Credit Document until such time, if  any, as
the Required Banks appoint a successor Administrative Agent as provided above.

            SECTION 12.  Miscellaneous.

            12.01 Payment  of Expenses,  etc.  The  Borrower agrees  to:   (i)
whether or not the  transactions herein contemplated are consummated,  pay all
reasonable out-of-pocket  costs and  expenses of  the Administrative Agent  in
connection with  the negotiation, preparation,  execution and delivery  of the
Credit Documents and the documents and instruments referred to therein and any
amendment, waiver or consent  relating thereto (including, without limitation,
the reasonable  fees and disbursements  of White &  Case and special  maritime
counsel Watson,  Farley &  Williams) and of  the Administrative Agent  and the
Collateral Agent  and, after the occurrence  and during the continuance  of an
Event of Default,  each of the Banks in connection with the enforcement of the
Credit Documents  and  the  documents  and  instruments  referred  to  therein
(including, without  limitation, the actual reasonable  fees and disbursements
of counsel for the Administrative  Agent and, after the occurrence  and during
the continuance of an  Event of Default for each  of the Banks); (ii)  pay and
hold  each of  the Banks  harmless from  and against any  and all  present and
future stamp and other similar taxes with respect to the foregoing matters and
save each of the Banks harmless from and against any and all  liabilities with
respect  to or resulting from any delay  or omission (other than to the extent
attributable to  such Bank) to pay  such taxes; and (iii)  indemnify each Bank
(including in  its capacity as  the Administrative  Agent or Letter  of Credit
Issuer), its  officers, directors, employees, representatives  and agents from
and  hold each of them harmless  against any and all liabilities, obligations,
losses, damages, penalties, claims, actions, judgments, suits, costs, expenses
or  disbursements of  whatsoever  kind  or nature  which  may be  imposed  on,
asserted against or incurred by any of them as a result of, or arising out of,
or in  any way related to, or by  reason of, (a) any investigation, litigation
or  other proceeding (whether or not  any Bank is a  party thereto) related to
the entering  into and/or performance of any Credit Document or the use of the
proceeds  of any  Loans  hereunder or  the  consummation of  any  transactions
contemplated in any Credit  Document, whether initiated by the Borrower or any
other Person, including,  without limitation, the  actual reasonable fees  and
disbursements  of counsel incurred in connection  with any such investigation,
litigation  or other proceeding  (but excluding any  such losses, liabilities,
claims,  damages or  expenses to the  extent incurred  by reason  of the gross
negligence or willful  misconduct of the Person to be  indemnified) or (b) the
actual or alleged  presence of Hazardous Materials in the  air, surface water,
groundwater,  surface or  subsurface of any  Real Property,  offshore drilling
rig, facility or location at any time owned or operated by  Holdings or any of
its  Subsidiaries,  the generation,  storage,  transportation  or disposal  of
Hazardous Materials at any  Real Property, offshore drilling rig,  facility or
location at any time owned or operated by Holdings or any of its Subsidiaries,
the  non-compliance of any Real  Property, offshore drilling  rig, facility or
location  at any time owned or operated by Holdings or any of its Subsidiaries
with federal,  state and  local laws,  regulations, and  ordinances (including
applicable permits thereunder) applicable to any such  Real Property, offshore
drilling  rig, facility  or  location,  or  any Environmental  Claim  asserted
against  Holdings, any  of its  Subsidiaries, or  any Real  Property, offshore
drilling rig, facility or location  at any time owned or operated  by Holdings
or  any of its Subsidiaries, including,  in each case, without limitation, the
actual  reasonable fees  and  disbursements of  counsel and  other consultants
incurred in connection with  any such investigation, litigation or  other pro-
ceeding (but excluding any losses, liabilities, claims, damages or expenses to
the extent incurred by reason of the gross negligence or willful misconduct of
the  Person to be indemnified).  To  the extent that the undertaking to indem-
nify, pay or hold harmless the  Administrative Agent or any Bank set  forth in
the preceding sentence may be unenforceable because it is violative of any law
or  public policy,  the Borrower  shall make  the maximum contribution  to the
payment  and  satisfaction of  each of  the  indemnified liabilities  which is
permissible under applicable law.

            12.02  Right of Setoff. In addition to any rights now or hereafter
granted under applicable law or otherwise, and not by way of limitation of any
such  rights, if an Event of  Default then exists, each  Bank is hereby autho-
rized  at any time or from time  to time, without presentment, demand, protest
or other notice  of any kind to the Borrower or  to any other Person, any such
notice being  hereby expressly waived, to set off and to appropriate and apply
any and  all deposits (general or  special) and any other  Indebtedness at any
time held or owing by such  Bank (including without limitation by branches and
agencies of such Bank wherever located) to or for the credit or the account of
the Borrower against and on account of the Obligations and  liabilities of the
Borrower to  such Bank under this Agreement  or under any of  the other Credit
Documents, including, without limitation, all interests in  Obligations of the
Borrower purchased  by such Bank pursuant  to Section 12.06(b),  and all other
claims of  any nature  or description  arising out of  or connected  with this
Agreement or  any other Credit Document,  irrespective of whether or  not such
Bank shall have made any demand hereunder and  although said Obligations, lia-
bilities or claims, or any of them, shall be contingent or unmatured.

            12.03  Notices.  (a)   Except   as  otherwise  expressly  provided
herein, all notices and  other communications provided for hereunder  shall be
in writing (including telex or telecopier  communication) and mailed, telexed,
telecopied  or delivered, if  to Holdings or its  Subsidiaries, at the address
specified  opposite  its  signature below  or  in  the  other relevant  Credit
Documents, as the case may  be; if to any  Bank, at its address specified  for
such Bank on Annex II; or, at such other address as shall be designated by any
party in a written notice to the  other parties hereto.  All such notices  and
communications shall be effective when received.

            (b)  Without in any way limiting the obligation of the Borrower to
confirm in  writing any telephonic notice permitted to be given hereunder, the
Administrative  Agent may, prior to receipt of written confirmation, act with-
out  liability upon  the  basis  of such  telephonic  notice  believed by  the
Administrative Agent in  good faith to  be from an  Authorized Officer of  the
Borrower.  In each such case, the  Borrower hereby waives the right to dispute
the Administrative Agent's record of the terms of such telephonic notice.

            12.04  Benefit of Agreement.  (a) This  Agreement shall be binding
upon  and  inure to  the  benefit  of and  be  enforceable  by the  respective
successors  and assigns of the parties  hereto, provided that the Borrower may
not assign or transfer any of  its rights or obligations hereunder without the
prior  written consent  of  the  Banks.   Each  Bank  may  at any  time  grant
participations in  any of its  rights hereunder or under  any of the  Notes to
another  financial  institution,  provided  that  in  the  case  of  any  such
participation,  the participant shall not have any rights under this Agreement
or any of  the other Credit  Documents (the participant's rights  against such
Bank in respect of  such participation to be those set forth  in the agreement
executed by  such Bank in favor  of the participant relating  thereto) and all
amounts payable by the Borrower hereunder shall be determined as  if such Bank
had not sold such participation, except that the participant shall be entitled
to the benefits of Sections 1.10 and 4.04 of this Agreement to the extent that
such Bank would be entitled to such benefits if the participation had not been
entered into  or sold,  and, provided  further, that no  Bank shall  transfer,
grant  or  assign any  participation under  which  the participant  shall have
rights to  approve any amendment to  or waiver of this Agreement  or any other
Credit Document except to the extent such amendment or waiver would (i) extend
the final scheduled maturity of any Loan or Note in which such  participant is
participating (it being understood  that any waiver of the  application of any
prepayment  or  the  method  of  any application  of  any  prepayment  to, the
Scheduled Commitment Reductions shall not constitute an extension of the final
maturity date), or reduce  the rate or extend the time  of payment of interest
or Fees  thereon (except in connection  with a waiver of  the applicability of
any post-default increase in  interest rates), or reduce the  principal amount
thereof,  or  increase  such   participant's  participating  interest  in  any
Commitment over the amount thereof then  in effect (it being understood that a
waiver of any condition, covenant,  Default or Event of Default or of a manda-
tory reduction in the Total  Commitment, or a mandatory prepayment, shall  not
constitute a  change in the terms of any Commitment), (ii) release all or sub-
stantially  all of  the  Collateral  or (iii)  consent  to the  assignment  or
transfer  by the  Borrower of  any of  its rights  and obligations  under this
Agreement.

            (b)  Notwithstanding the foregoing, (x) any Bank may assign all or
a portion of its  outstanding Commitment and its rights  and obligations here-
under  to its Affiliate or  to another Bank,  and (y) with the  consent of the
Administrative Agent and the Borrower (which consent shall not be unreasonably
withheld), any Bank may assign all or a portion of  its outstanding Commitment
and its rights and obligations hereunder to one or  more Eligible Transferees.
No  assignment pursuant  to the  immediately preceding  sentence shall  to the
extent such assignment represents  an assignment to an institution  other than
one or  more Banks hereunder, be  in an aggregate amount  less than $5,000,000
unless  the entire Commitment  of the assigning  Bank is so assigned.   If any
Bank so sells or  assigns all or a part  of its rights hereunder or  under the
Notes, any  reference in this  Agreement or the  Notes to such  assigning Bank
shall thereafter  refer to such  Bank and  to the respective  assignee to  the
extent of their respective  interests and the respective assignee  shall have,
to the extent of such assignment (unless otherwise provided therein), the same
rights  and benefits  as  it would  if  it were  such  assigning Bank.    Each
assignment pursuant to this Section 12.04(b) shall be effected  by the assign-
ing  Bank and  the  assignee  Bank  executing  an  Assignment  and  Assumption
Agreement.  In  the event of any  such assignment (x) to a  commercial bank or
other financial  institution  not  previously a  Bank  hereunder,  either  the
assigning  or the  assignee  Bank  shall pay  to  the  Administrative Agent  a
nonrefundable assignment fee of $3,500 and (y) to a Bank, either the assigning
or  assignee  Bank  shall pay  to  the  Administrative  Agent a  nonrefundable
assignment fee of $1,500,  and at the time of any assignment  pursuant to this
Section 12.04(b),  (i) Annex I  shall be deemed to  be amended to  reflect the
Commitment  of the  respective  assignee  (which  shall  result  in  a  direct
reduction to the Commitment of the assigning Bank) and of the other Banks, and
(ii)  if any  such  assignment occurs  after  the Initial  Borrowing Date,  if
requested by the assigning Bank and the assignee Bank, the Borrower will issue
new Notes to  the respective assignee and to the  assigning Bank in conformity
with  the requirements of Section 1.05.   Each Bank and  the Borrower agree to
execute  such documents  (including,  without limitation,  amendments to  this
Agreement and the other Credit Documents)  as shall be necessary to effect the
foregoing.  Nothing in this clause (b) shall prevent or prohibit any Bank from
pledging its Notes or Loans to a Federal Reserve Bank in support of borrowings
made by such Bank from such Federal Reserve Bank.

            (c)  Notwithstanding any  other provisions of this  Section 12.04,
no transfer  or  assignment  of  the interests  or  obligations  of  any  Bank
hereunder  or any grant  of participation therein  shall be permitted  if such
transfer, assignment or grant would require Holdings or the Borrower to file a
registration statement  with the SEC or  to qualify the Loans  under the "Blue
Sky" laws of any State.

            (d)  Each   Bank  initially   party   to  this   Agreement  hereby
represents,  and each  Person that  became a  Bank pursuant  to  an assignment
permitted by this Section 12 will, upon its becoming party  to this Agreement,
represent that it is a commercial lender, other financial institution or other
"accredited" investor (as  defined in SEC  Regulation D) which makes  loans in
the ordinary course of its business and that it will make or acquire Loans for
its own account in the ordinary course of such business, provided that subject
to the  preceding clauses (a) and (b), the disposition of any promissory notes
or other evidences of or interests in Indebtedness held by  such Bank shall at
all times be within its exclusive control.

            12.05  No Waiver; Remedies Cumulative. No  failure or delay on the
part of the Administrative Agent or any Bank in exercising any right, power or
privilege  hereunder or  under  any other  Credit Document  and  no course  of
dealing between Holdings  or any  of its Subsidiaries  and the  Administrative
Agent or any Bank  shall operate as a waiver thereof; nor  shall any single or
partial exercise of any right, power or privilege hereunder or under any other
Credit Document preclude any other or further exercise thereof or the exercise
of any  other right, power or  privilege hereunder or thereunder.   The rights
and remedies herein expressly provided are cumulative and not exclusive of any
rights or remedies which the Administrative Agent or any  Bank would otherwise
have.  No notice  to or demand on Holdings  or any of its Subsidiaries  in any
case shall entitle Holdings or any of its Subsidiaries to any other or further
notice  or demand in similar or other  circumstances or constitute a waiver of
the rights of  the Administrative Agent or the  Banks to any other  or further
action in any circumstances without notice or demand.

            12.06  Payments  Pro  Rata.  (a) The  Administrative Agent  agrees
that promptly  after its  receipt of  each payment  from or  on behalf  of any
Credit Party in respect of any Obligations of the Borrower or any other Credit
Party hereunder, it shall distribute such payment to the Banks (other than any
Bank that  has  expressly waived  its  right to  receive  its pro  rata  share
thereof)  pro  rata  based  upon  their  respective  shares,  if  any,  of the
Obligations with respect to which such payment was received.

            (b)  Each  of  the Banks  agrees that,  if  it should  receive any
amount hereunder  (whether by voluntary payment, by realization upon security,
by the exercise  of the right of setoff  or banker's lien, by  counterclaim or
cross  action, by the enforcement of any  right under the Credit Documents, or
otherwise) which is applicable to the payment of the principal of, or interest
on,  the Loans, Unpaid  Drawings or Fees, of  a sum which  with respect to the
related sum or  sums received by other  Banks is in a  greater proportion than
the total of such Obligation then owed and due to such Bank bears to the total
of such Obligation then owed and due  to all of the Banks immediately prior to
such receipt,  then such Bank receiving such excess payment shall purchase for
cash without  recourse or  warranty from  the other Banks  an interest  in the
Obligations of the  Borrower or any other Credit Party,  respectively, to such
Banks in such amount as shall result in a proportional participation by all of
the Banks in  such amount, provided that if all or  any portion of such excess
amount  is thereafter  recovered  from  such  Bank,  such  purchase  shall  be
rescinded and  the purchase price restored to the extent of such recovery, but
without interest.

            (c)   Notwithstanding anything  to the contrary  contained herein,
the provisions of the preceding Sections 12.06(a) and (b) shall  be subject to
the express provisions of  this Agreement which require, or  permit, differing
payments to be made to Non-Defaulting Banks as opposed to Defaulting Banks.

            12.07  Calculations; Computations.  (a)  The financial  statements
to be  furnished to the  Banks pursuant hereto shall  be made and  prepared in
accordance  with GAAP  consistently  applied throughout  the periods  involved
(except as set forth in the notes thereto or as otherwise disclosed in writing
by Holdings  or  the Borrower  to  the Banks),  provided  that (x)  except  as
otherwise specifically  provided herein, all  computations determining compli-
ance  with  Section  8,  including definitions  used  therein,  shall  utilize
accounting  principles and policies in  effect at the  time of the preparation
of, and  in conformity  with  those used  to prepare,  the  December 31,  1995
historical financial statements of Holdings delivered to the Banks pursuant to
Section  6.10(b)  and (y)  that if  at any  time the  computations determining
compliance with Section 8  utilize accounting principles different  from those
utilized  in the financial statements  furnished to the  Banks, such financial
statements shall be accompanied by reconciliation work-sheets.

            (b)  All computations of interest and Fees hereunder shall be made
on the actual number of days elapsed over a year of 360 days.

            12.08  GOVERNING LAW; SUBMISSION TO JURISDICTION; VENUE; WAIVER OF
JURY TRIAL.  (a)  THIS AGREEMENT AND THE OTHER CREDIT DOCUMENTS AND THE RIGHTS
AND OBLIGATIONS OF THE PARTIES HEREUNDER  AND THEREUNDER SHALL BE CONSTRUED IN
ACCORDANCE WITH  AND BE GOVERNED  BY THE LAW  OF THE STATE  OF NEW YORK.   ANY
LEGAL ACTION  OR PROCEEDING WITH RESPECT TO THIS AGREEMENT OR ANY OTHER CREDIT
DOCUMENT MAY BE  BROUGHT IN  THE COURTS OF  THE STATE  OF NEW YORK  OR OF  THE
UNITED STATES  FOR THE SOUTHERN  DISTRICT OF NEW  YORK, AND, BY  EXECUTION AND
DELIVERY OF  THIS  AGREEMENT, HOLDINGS  AND  THE BORROWER  HEREBY  IRREVOCABLY
ACCEPT  FOR THEMSELVES  AND  IN  RESPECT  OF  THEIR  PROPERTY,  GENERALLY  AND
UNCONDITIONALLY, THE JURISDICTION OF  THE AFORESAID COURTS.  HOLDINGS  AND THE
BORROWER FURTHER IRREVOCABLY CONSENT TO  THE SERVICE OF PROCESS OUT OF  ANY OF
THE  AFOREMENTIONED COURTS IN ANY SUCH ACTION  OR PROCEEDING BY THE MAILING OF
COPIES  THEREOF BY  REGISTERED  OR CERTIFIED  MAIL,  POSTAGE PREPAID,  TO  THE
BORROWER LOCATED  OUTSIDE NEW YORK CITY AND  BY HAND DELIVERY TO  THE BORROWER
LOCATED  WITHIN NEW YORK CITY, AT ITS  ADDRESS FOR NOTICES PURSUANT TO SECTION
12.03, SUCH SERVICE  TO BECOME EFFECTIVE 30 DAYS AFTER  SUCH MAILING.  NOTHING
HEREIN  SHALL AFFECT THE  RIGHT OF THE  ADMINISTRATIVE AGENT, ANY  BANK OR THE
HOLDER OF ANY NOTE TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW OR TO
COMMENCE  LEGAL  PROCEEDINGS  OR OTHERWISE  PROCEED  AGAINST  HOLDINGS  OR THE
BORROWER IN ANY OTHER JURISDICTION.

            (b)  HOLDINGS  AND  THE  BORROWER  HEREBY  IRREVOCABLY  WAIVE  ANY
OBJECTION WHICH THEY MAY  NOW OR HEREAFTER HAVE TO THE LAYING  OF VENUE OF ANY
OF  THE AFORESAID ACTIONS OR PROCEEDINGS ARISING  OUT OF OR IN CONNECTION WITH
THIS AGREEMENT OR ANY OTHER CREDIT  DOCUMENT BROUGHT IN THE COURTS REFERRED TO
IN CLAUSE  (A) ABOVE AND  HEREBY FURTHER  IRREVOCABLY WAIVE AND  AGREE NOT  TO
PLEAD OR CLAIM IN ANY SUCH COURT THAT ANY SUCH ACTION OR PROCEEDING BROUGHT IN
ANY SUCH COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

            (c)  EACH  OF THE  PARTIES  TO THIS  AGREEMENT HEREBY  IRREVOCABLY
WAIVES ALL  RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM
ARISING OUT  OF OR RELATING TO  THIS AGREEMENT, THE OTHER  CREDIT DOCUMENTS OR
THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

            12.09  Counterparts.  This Agreement may be executed in any number
of  counterparts and by the different parties hereto on separate counterparts,
each of which when so executed and  delivered shall be an original, but all of
which shall  together  constitute one  and  the same  instrument.   A  set  of
counterparts executed  by all  the parties  hereto shall  be  lodged with  the
Borrower and the Administrative Agent.

            12.10  Effectiveness. This Agreement shall become effective on the
date (the  "Effective Date") on which  Holdings, the Borrower and  each of the
Banks shall have signed a  copy hereof (whether the same or  different copies)
and  shall have delivered the same to  the Administrative Agent at the Payment
Office of the  Administrative Agent or, in the  case of the Banks,  shall have
given to the Administrative Agent  telephonic (confirmed in writing),  written
telex or facsimile transmission notice (actually received) at such office that
the same has been signed and mailed to it.

            12.11  Headings Descriptive.  The headings of the several sections
and subsections of this Agreement are inserted  for convenience only and shall
not in any  way affect the  meaning or construction of  any provision of  this
Agreement.

            12.12  Amendment  or Waiver. (a)  Neither  this Agreement  nor any
other Credit Document nor any terms hereof or thereof may  be changed, waived,
discharged or  terminated unless such change, waiver, discharge or termination
is in writing signed by the Borrower and the Required Banks, provided  that no
such  change, waiver, discharge or  termination shall, without  the consent of
each  Bank (other  than a  Defaulting Bank)  affected thereby, (i)  extend the
Maturity Date (it being understood  that any waiver of the application  of any
prepayment of the Loans or the method  of application of any prepayment to the
Scheduled Commitment Reductions, shall not  constitute any such extension), or
reduce the  rate or extend the  time of payment  of interest (other than  as a
result of waiving the  applicability of any post-default increase  in interest
rates) or Fees thereon,  or reduce the principal amount thereof, (ii) increase
the  Commitment of any Bank  over the amount thereof  then in effect (it being
understood that  a  waiver of  any condition,  covenant, Default  or Event  of
Default shall  not constitute a change  in the terms of any  Commitment of any
Bank), (iii) release or permit the  release of (x) any Mortgaged Rig  from the
Lien of  the respective  Security Documents  or (y)  the Guaranty of  Holdings
pursuant to Section 13 or the Guaranty  of any Subsidiary Guarantor so long as
such Subsidiary Guarantor continues to  own any Mortgaged Rig (except, in  the
case  of  both (x)  and  (y)  above,  as  expressly  provided  in  the  Credit
Documents), (iv) amend, modify  or waive any provision of  this Section 12.12,
(v) reduce the  percentage specified in the  definition of Required  Banks (it
being understood  and agreed  that, with  the consent  of the  Required Banks,
additional extensions of credit pursuant to this  Agreement may be included in
the determination  of Required Banks  on substantially the  same basis  as the
Commitments (and related extensions  of credit) are included on  the Effective
Date), (vi) consent  to the assignment or transfer  by the Borrower of  any of
its rights and  obligations under  this Agreement or  (vii) waive, change  the
timing or amount of, or extend any mandatory reduction in the Total Commitment
including, without limitation, a Scheduled Commitment Reduction.  No provision
of Sections 2 or 11, or any  other provisions relating to the Letter of Credit
Issuer or  the Administrative Agent may be modified without the consent of the
Administrative Agent.

            (b)  If, in connection with any proposed change, waiver, discharge
or  termination to any of the provisions  of this Agreement as contemplated by
clauses (i) through (vii), inclusive, of the proviso to Section 12.12(a),  the
consent of the  Required Banks is obtained  but the consent of one  or more of
such other Banks whose consent is required is not obtained,  then the Borrower
shall have  the right to  replace each such  non-consenting Bank or  Banks (so
long as all non-consenting Banks are so replaced) with one or more Replacement
Banks  pursuant to Section  1.13 so long  as at the time  of such replacement,
each  such Replacement Bank consents to the proposed change, waiver, discharge
or  termi-nation; provided  that the  Borrower  shall not  have  the right  to
replace a Bank solely  as a result of the exercise of  such Bank's rights (and
the withholding of  any required  consent by  such Bank)  pursuant to  Section
12.12(a)(ii). 

            12.13  Survival.  All indemnities  set  forth   herein  including,
without limitation, in Section  1.10, 1.11, 2.05, 4.04,  11.06 or 12.01  shall
survive  the execution  and  delivery of  this Agreement  and  the making  and
repayment of the Loans.

            12.14  Domicile  of Loans.  Each  Bank may transfer and  carry its
Loans at, to or for the account of any  branch office, subsidiary or Affiliate
of such  Bank, provided that the  Borrower shall not be  responsible for costs
arising under Section  1.10 or 4.04  resulting from  any such transfer  (other
than  a transfer  pursuant  to Section  1.12(a)) to  the extent  not otherwise
applicable to such Bank prior to such transfer.

            12.15  Confidentiality.  Subject to Section 12.04, the Banks shall
hold  all non-public information obtained pursuant to the requirements of this
Agreement in accordance with its customary procedure for handling confidential
information of this nature and in accordance with safe and sound banking prac-
tices and  in any event  may make disclosure  reasonably required by  any bona
fide transferee or participant in connection with the contemplated transfer of
any Loans or participation therein (so  long as such transferee or participant
agrees  to be bound by the provisions of this Section 12.15) or as required or
requested  by any governmental agency or representative thereof or pursuant to
legal process, provided that, unless specifically prohibited by applicable law
or court order,  each Bank  shall notify the  Borrower of  any request by  any
governmental agency or represen-tative thereof (other than any such request in
connection with an examination of the financial condition of such Bank by such
governmental agency) for disclosure  of any such non-public information  prior
to disclosure of such information, and provided further that in no event shall
any  Bank be  obligated  or  required to  return  any materials  furnished  by
Holdings or any Subsidiary.

            12.16  Registry. The Borrower hereby designates the Administrative
Agent to  serve as the Borrower's  agent, solely for purposes  of this Section
12.16,  to maintain a  register (the "Register")  on which it  will record the
Commitments from time to time of each of the  Banks, the Loans made by each of
the Banks and each repayment  in respect of the principal amount  of the Loans
of  each Bank.   Failure to make  any such  recordation, or any  error in such
recordation shall not  affect the  Borrower's obligations in  respect of  such
Loans.  With respect to any Bank, the transfer of the Commitments of such Bank
and the rights to the principal of, and interest on, any Loan made pursuant to
such Commitments shall not be effective until such transfer is recorded on the
Register maintained by the  Administrative Agent with respect to  ownership of
such Commitments  and Loans and prior to such recordation all amounts owing to
the transferor  with respect to such Commitments  and Loans shall remain owing
to  the transferor.  The registration of assignment or transfer of all or part
of any  Commitments and Loans shall be recorded by the Administrative Agent on
the  Register only  upon  the  acceptance by  the  Administrative  Agent of  a
properly executed  and delivered Assignment and  Assumption Agreement pursuant
to Section 12.04(b).  Coincident  with the delivery of such an  Assignment and
Assumption Agreement  to the  Administrative Agent  for acceptance and  regis-
tration of  assignment  or transfer  of all  or part  of  a Loan,  or as  soon
thereafter  as practicable, the  assigning or transferor  Bank shall surrender
the Note evidencing such Loan, and thereupon one or more new Notes in the same
aggregate principal amount shall be issued to the assigning or transferor Bank
and/or the new Bank.

            SECTION 13.  Holdings Guaranty.

            13.01  The Guaranty.  In order to induce  the Banks to enter  into
this Agreement and to extend credit hereunder and in recognition of the direct
benefits  to be received by  Holdings from the  proceeds of the  Loans and the
issuance of  the Letters of Credit,  Holdings hereby agrees with  the Banks as
follows:   Holdings hereby unconditionally and irrevocably guarantees as prim-
ary obligor and  not merely as surety  the full and  prompt payment when  due,
whether upon maturity,  by acceleration or  otherwise, of any  and all of  the
Guaranteed Obligations  of the Borrower to  the Secured Creditors.   If any or
all  of the  Guaranteed Obligations of  the Borrower to  the Secured Creditors
becomes due  and payable hereunder,  Holdings unconditionally promises  to pay
such indebtedness to the Secured Creditors, on order, or demand, together with
any  and all reasonable  expenses which may be  incurred by the Administrative
Agent  or  the  Secured   Creditors  in  collecting  any  of   the  Guaranteed
Obligations.

            13.02  Bankruptcy.   Additionally,  Holdings  unconditionally  and
irrevocably   guarantees  the  payment  of  any  and  all  of  the  Guaranteed
Obligations of the  Borrower to the Secured Creditors whether  or not then due
or payable by the  Borrower upon the occurrence in respect  of the Borrower of
any of  the events specified in Section 9.05, and unconditionally and irrevoc-
ably promises to pay  such Guaranteed Obligations to the Secured Creditors, on
order, or demand, in lawful money of the United States.  Holdings' guaranty of
the payment  of  any and  all of  the Guaranteed  Obligations hereunder  shall
constitute a guaranty of payment, and not of collection. 

            13.03  Nature of Liability. The liability of Holdings hereunder is
exclusive  and independent  of  any  security for  or  other  guaranty of  the
Guaranteed Obligations of the Borrower whether executed by Holdings, any other
guarantor or by any other party, and the liability of Holdings hereunder shall
not be affected or impaired by (a) any direction as  to application of payment
by the Borrower  or by any other  party, or (b) any other  continuing or other
guaranty, undertaking  or maximum  liability of  a guarantor  or of any  other
party as to the Guaranteed Obligations of the Borrower, or (c) any  payment on
or in reduction of  any such other guaranty or undertaking, or (d) any dissol-
ution, termination or  increase, decrease or  change in personnel by  the Bor-
rower, or  (e) any  payment made  to the Administrative  Agent or  the Secured
Creditors on the indebtedness  which the Administrative Agent or  such Secured
Creditors repay the Borrower pursuant to  court order in any bankruptcy, reor-
ganization,  arrangement, moratorium  or other  debtor relief  proceeding, and
Holdings  waives any right to the  deferral or modification of its obligations
hereunder by reason of any such proceeding.

            13.04  Independent  Obligation.    The   obligations  of  Holdings
hereunder are  independent of the  obligations of  any other guarantor  or the
Borrower, and  a  separate action  or actions  may be  brought and  prosecuted
against Holdings whether or not action is brought against any  other guarantor
or  the Borrower and  whether or not  any other  guarantor or the  Borrower be
joined in any such action or actions.  Holdings  waives, to the fullest extent
permitted by  law, the  benefit of  any statute  of limitations  affecting its
liability hereunder or the  enforcement thereof.  Any payment by  the Borrower
or other circumstance which operates to  toll any statute of limitations as to
the Borrower shall operate to toll the statute of limitations as to Holdings.

            13.05  Waiver of Notice,  etc.   Holdings hereby waives  notice of
acceptance of this Guaranty and notice of any liability to which it may apply,
and  waives promptness,  diligence, presentment,  demand of  payment, protest,
notice of  dishonor or nonpayment of  any such liabilities, suit  or taking of
other action  by the  Administrative Agent,  any  Bank, the  Letter of  Credit
Issuer, the Collateral  Agent or the Security  Trustee against, and  any other
notice to, any party  liable thereon (including Holdings, any  other guarantor
or the Borrower).

            13.06  Authorization. Holdings authorizes the Administrative Agent
and  the  Secured Creditors  without  notice or  demand  (except  as shall  be
required by applicable statute and cannot be waived), and without affecting or
impairing its liability hereunder, from time to time to:

            (a)  change  the  manner, place  or  terms of  payment  of, and/or
      change or extend the time of payment of, renew,  increase, accelerate or
      alter,  any of  the Guaranteed  Obligations (including  any increase  or
      decrease in the rate of interest thereon), any security therefor, or any
      liability incurred  directly or indirectly  in respect thereof,  and the
      Guaranty herein made  shall apply  to the Guaranteed  Obligations as  so
      changed, extended, renewed or altered;

            (b)  take and  hold  security for  the payment  of the  Guaranteed
      Obligations  and sell,  exchange,  release, surrender,  realize upon  or
      otherwise  deal with  in any  manner and  in any  order any  property by
      whomsoever  at any  time pledged  or mortgaged  to secure,  or howsoever
      securing, the  Guaranteed Obligations or any  liabilities (including any
      of  those hereunder) incurred directly or  indirectly in respect thereof
      or hereof, and/or any offset thereagainst;

            (c)  exercise or  refrain from  exercising any rights  against the
      Borrower or others or otherwise act or refrain from acting;

            (d)  release or substitute any  one or more endorsers, guarantors,
      the Borrower or other obligors;

            (e)  settle or  compromise any of the  Guaranteed Obligations, any
      security  therefor or any  liability (including any  of those hereunder)
      incurred  directly or indirectly in  respect thereof or  hereof, and may
      subordinate the payment of all or any part thereof to the payment of any
      liability (whether due or  not) of the Borrower  to its creditors  other
      than the Banks;

            (f)  apply any  sums by whomsoever  paid or howsoever  realized to
      any  liability or liabilities of  the Borrower to  the Secured Creditors
      regardless  of what liability or liabilities of Holdings or the Borrower
      remain unpaid;

            (g)  consent to  or waive any  breach of, or any  act, omission or
      default  under, this Agreement or  any of the  instruments or agreements
      referred  to herein,  or  otherwise  amend,  modify or  supplement  this
      Agreement or any of such other instruments or agreements; and/or

            (h)  take any other action which would, under otherwise applicable
      principles of common law, give rise to a legal or equitable discharge of
      Holdings from its liabilities under this Section 13.

            13.07  Reliance.  It is not necessary for the Administrative Agent
or the  Secured  Creditors to  inquire  into the  capacity  or powers  of  the
Borrower  or its Subsidiaries or  the officers, directors,  partners or agents
acting or purporting to act on its behalf, and any Guaranteed Obligations made
or  created in reliance  upon the professed  exercise of such  powers shall be
guaranteed hereunder.

            13.08  Subordination.  Any  of  the indebtedness  of the  Borrower
relating to the Guaranteed  Obligations now or hereafter owing to  Holdings is
hereby subordinated to the Guaranteed Obligations of the Borrower owing to the
Administrative  Agent and  the Secured  Creditors; and  if the  Administrative
Agent so  requests  at a  time  when an  Event  of Default  exists,  all  such
indebtedness  relating  to  the  Guaranteed  Obligations  of  the Borrower  to
Holdings shall be collected, enforced and received by Holdings for the benefit
of  the Secured  Creditors and  be paid  over to  the Administrative  Agent on
behalf of the  Secured Creditors on  account of the Guaranteed  Obligations of
the Borrower to the  Secured Creditors, but without affecting  or impairing in
any manner the liability of Holdings under the other provisions  of this Guar-
anty.  Prior to the transfer by Holdings  of any note or negotiable instrument
evidencing any of the  indebtedness relating to the Guaranteed  Obligations of
the  Borrower to  Holdings,  Holdings  shall  mark  such  note  or  negotiable
instrument with a legend that the same is subject to this subordination.  

            13.09  Waiver.  (a)  Holdings waives any right (except as shall be
required   by  applicable  statute  and  cannot  be  waived)  to  require  the
Administrative  Agent  or the  Secured Creditors  to  (i) proceed  against the
Borrower,  any other  guarantor or any  other party,  (ii) proceed  against or
exhaust any security held from the  Borrower, any other guarantor or any other
party or  (iii) pursue any other  remedy in the Administrative  Agent's or the
Secured Creditors' power whatsoever.  Holdings  waives any defense based on or
arising out of any defense of  the Borrower, any other guarantor or any  other
party, other than payment in  full of the Guaranteed Obligations, based  on or
arising  out of  the disability of  the Borrower,  any other  guarantor or any
other party, or the unenforceability of the Guaranteed Obligations or any part
thereof  from any cause, or the  cessation from any cause  of the liability of
the Borrower  other than payment in  full of the Guaranteed  Obligations.  The
Administrative  Agent and  the  Secured  Creditors  may,  at  their  election,
foreclose on any  security held  by the Administrative  Agent, the  Collateral
Agent  or the Secured Creditors by one  or more judicial or nonjudicial sales,
whether or  not every aspect of  any such sale is  commercially reasonable (to
the extent  such sale is permitted  by applicable law), or  exercise any other
right or remedy  the Administrative Agent and  the Secured Creditors may  have
against the Borrower or any other party, or any security, without affecting or
impairing in  any way the liability of Holdings hereunder except to the extent
the Guaranteed  Obligations have been paid.  Holdings waives any defense aris-
ing  out of  any such  election by  the Administrative  Agent and  the Secured
Creditors,  even though  such election  operates to  impair or  extinguish any
right  of reimbursement or  subrogation or other  right or  remedy of Holdings
against the Borrower or any other party or any security.

            (b)  Holdings  waives all  presentments, demands  for performance,
protests    and   notices,   including,   without   limitation,   notices   of
nonperformance, notices of protest, notices of dishonor, notices of acceptance
of this Guaranty, and notices  of the existence, creation or incurring  of new
or additional Guaranteed Obligations.  Holdings assumes all responsibility for
being  and keeping itself informed  of the Borrower's  financial condition and
assets, and  of all other circumstances bearing upon the risk of nonpayment of
the Guaranteed Obligations and the nature, scope and extent of the risks which
Holdings  assumes and  incurs hereunder,  and agrees  that the  Administrative
Agent  and the  Secured Creditors  shall have  no duty  to advise  Holdings of
information known to them regarding such circum-stances or risks.


                         *             *            *


                  IN  WITNESS WHEREOF, each of the parties hereto has caused a
counterpart of this Agreement to be duly executed and delivered as of the date
first above written.

Address:                      READING & BATES CORPORATION

901 Threadneedle
Suite 200                     By                                   
Houston, Texas  77079              Name:  
Attn:  General Counsel             Title: 
Telephone:  (713) 496-5000
Facsimile:  (713) 496-0285


                              READING & BATES DRILLING CO.



                              By                                   
                                   Name:  
                                   Title: 


                              CHRISTIANIA BANK OG KREDITKASSE, NEW YORK
                              BRANCH,
                              Individually  and as Administrative Agent



                              By                                   
                                   Name:  
                                   Title: 


                              By                                   
                                   Name:
                                   Title:


                              BANQUE INDOSUEZ,
                              Individually and as Documentation Agent



                              By                                   
                                   Name:
                                   Title:


                              CREDIT LYONNAIS NEW YORK BRANCH,
                              Individually and as Documentation Agent



                              By                                   
                                   Name:
                                   Title:


                              SKANDINAVISKA ENSKILDA BANKEN AB (publ.),
                              Individually and as Co-Manager



                              By                                   
                                   Name:
                                   Title:


                              THE FUJI BANK LIMITED,
                              Individually and as Co-Manager



                              By                                   
                                   Name:
                                   Title:

                              BANK AUSTRIA



                              By                                   
                                   Name:
                                   Title:


                              THE BANK OF TOKYO-MITSUBISHI LTD.



                              By                                   
                                   Name:
                                   Title:


                              MEESPIERSON N.V.



                              By                                   
                                   Name:
                                   Title:


                              SANWA BANK



                              By                                   
                                   Name:
                                   Title:


                              FIRST NATIONAL BANK OF COMMERCE



                              By                                   
                                   Name:
                                   Title:


                              THE SUMITOMO BANK LIMITED



                              By                                   
                                   Name:
                                   Title:



                                                                     ANNEX I



                                      COMMITMENTS

                            Bank                         Commitment

                Christiania Bank                         $65,000,000
                Banque Indosuez                          $35,000,000
                Credit Lyonnais                          $35,000,000
                Skandinaviska Enskilda                   $32,000,000
                Fuji Bank                                $32,000,000
                Bank Austria                             $18,500,000
                Bank of Tokyo-Mitsubishi                 $18,500,000
                Mees Pierson                             $18,500,000
                Sanwa Bank                               $18,500,000
                First NBC                                $13,500,000
                Sumitomo Bank                            $13,500,000
                      Total                             $300,000,000
                             

                                                                     ANNEX II


                                    BANK ADDRESSES



Christiania Bank og Kreditkasse,        11 West 42nd Street
New York Branch                         7th Floor
                                        New York, NY  10036
                                        Attn:  Hans Chr. Kjelsrud
                                        Tel. No.:  (212) 827-4800
                                        Fax No.:   (212) 827-4888


Credit Lyonnais                         1000 Louisiana
New York Branch                         Suite 5360
                                        Houston, Texas  77002
                                        Attn:  Diane Scott
                                        Tel. No.:  (713) 751-0500
                                        Fax No.:  (713) 751-0307


Banque Indosuez                         Representative Office Norway
                                        Ruselokkveien 6
                                        0120 Oslo, Norway
                                        Attn:  Mr. Bjorn Hundevadt-Gulbrandsen
                                               Mr. Hans Jorgen Wibstad
                                        Tel. No.: 011 47 22 83 30 50
                                        Fax No.:  011 47 22 83 30 55


Mees Pierson                            Camomile Court
                                        23 Camomile Street
                                        London EC3A 7PP
                                        Attn:  Harris Antoniou
                                        Tel. No.: 44 171 444 8789
                                        Fax No.:  44 171 444 8810


The Fuji Bank Limited                   Houston Agency
                                        1 Houston Center, Suite 4100
                                        1221 McKinney Street
                                        Houston, TX  77010
                                        Attn:  Mark E. Polasek
                                        Tel. No.: (713) 650-7863 or
                                                  (713) 759-1800
                                        Fax No.:  (713)759-0048

First National Bank of Commerce         210 Baronne Street
                                        P.O. Box 60279
                                        New Orleans, LA  70160-0279
                                        Attn:  Joshua C. Cummings
                                               Mr. Jesse Shannon
                                               Anthony Restell
                                        Tel. No.: (504) 561-1361
                                        Fax No.:  (504) 561-1316


Sanwa Bank                              Dallas Agency 1
                                        220 Ross Avenue
                                        Suite 4100W
                                        Dallas, TX  75201
                                        Attn:  Matt Patrick
                                               Erik Reimer
                                        Tel. No.: (214) 744-555
                                                  (214) 665-0243
                                        Fax No.:  (214) 741-6535


Bank Austria                            565 Fifth Avenue
                                        New York, NY  10017
                                        Attn:  Paul H. Deerin
                                               Jonathan Bakker
                                        Tel. No.: (212) 880-1033
                                                  (212) 880-1074
                                        Fax No.:  (212) 880-1040


Skandinaviska Enskilda Banken AB        Rosenkrantz GT 22
                                        Box 1843 Vika
                                        N-0123 Oslo, Norway
                                        Attn:  Bjarte Boe
                                               Snorre Krogstad
                                        Tel. No.: 47 22 82 70 04
                                                  47 22 82 70 05
                                        Fax No.:  47 22 82 71 11

The Bank of Tokyo-Mitsubishi Ltd.       Houston Agency
                                        1100 Louisiana, Suite 2800
                                        Houston, TX  77002
                                        Attn:  Deanna Breland
                                        Tel. No.: (713) 655-3810
                                        Fax No.:  (713) 65-0116


The Sumitomo Bank Limited               Houston Agency
                                        700 Louisiana Street, Suite 1750
                                        Houston, TX  77002
                                        Attn: Robert Johnson
                                              William R. McKown
                                        Tel. No.: (713) 238-8235
                                        Fax No.:  (713) 759-0020
 

                                                                Exhibit 10.118

                              SECURITY AGREEMENT


            SECURITY AGREEMENT (as amended, modified or supplemented from time
to  time, this "Agreement"), dated as of  November 13, 1996, between Reading &
Bates  Drilling Co. (the "Borrower"), Reading & Bates Exploration Co., Reading
& Bates  Offshore, Limited, HRB Rig Corporation, Reading & Bates (A) Pty. Ltd.
and  Reading and Bates Borneo Drilling Co., Ltd. (collectively the "Subsidiary
Guarantors" and, together with the Borrower, the "Assignors"), and Christiania
Bank og Kreditkasse,  New York  Branch, as Collateral  Agent (the  "Collateral
Agent"), for the  benefit of the Banks, the  Letter of Credit Issuer,  and the
Administrative   Agent  under,  and  as  defined   in,  the  Credit  Agreement
hereinafter   referred  to   (such  Banks,   Letter   of  Credit   Issuer  and
Administrative Agent are  hereinafter called the "Secured Creditors").  Except
as otherwise defined herein, capitalized terms used herein and defined  in the
Credit Agreement shall be used herein as so defined.


                             W I T N E S S E T H :


            WHEREAS, Reading & Bates  Corporation, the Borrower, the financial
institutions  from  time to  time party  thereto,  Banque Indosuez  and Credit
Lyonnais New York  Branch, as  Documentation Agents, and  Christiania Bank  og
Kreditkasse,  New York  Branch, as  Administrative Agent  have entered  into a
Credit Agreement, dated as of November 13, 1996 (as modified,  supplemented or
amended from time to  time, the "Credit Agreement"), providing  for the making
of  Loans and  the issuance  of, and  participation in,  Letters of  Credit as
contemplated therein;

            WHEREAS, the Subsidiary  Guarantors have  executed the  Subsidiary
Guaranty  and thereby  guaranteed the  obligations of  the Borrower  under the
Credit Agreement and the other Credit Documents;

            WHEREAS, the Borrower desires  to incur Loans and to  have Letters
of Credit issued for its account under the Credit Agreement;

            WHEREAS, Reading & Bates Drilling Co., an Oklahoma corporation, is
the sole  owner of  the United States  registered offshore drilling  rigs Jack
Bates (official No. 906283),  Randolph Yost (official no. 601699),  J.T. Angel
(official no. 651645), and Roger W. Mowell (official no. 645360);

            WHEREAS, Reading & Bates Exploration Co., an Oklahoma corporation,
is the sole owner of the United States registered offshore  drilling rigs W.D.
Kent (official no. 583169) and D.R. Stewart (official no. 626904);

            WHEREAS,  Reading   &   Bates  Offshore,   Limited,  an   Oklahoma
corporation,  is the  sole  owner of  the  United States  registered  offshore
drilling  rigs F.G.  McClintok (official  no. 562059)  and George  H. Galloway
(official no. 651646);

            WHEREAS, HRB Rig Corporation, an Oklahoma corporation, is the sole
owner  of the United  States registered offshore  drilling rig  Harvey H. Ward
(official no. 642693);

            WHEREAS, Reading  & Bates Borneo  Drilling Co., Ltd.,  an Oklahoma
corporation,  is the sole owner of the Panamanian registered offshore drilling
rig Charley Graves (official no. 6618-76-CH);

            WHEREAS, Reading & Bates Drilling Co., an Oklahoma corporation, is
the sole  owner of  the Panamanian  registered offshore drilling  rigs Rig  41
(provisional  official no. 23630-PEXT-1) and J.W.  McLean (official no. 25384-
PEXT);

            WHEREAS,  Reading & Bates (A)  Pty. Ltd., a  company organized and
existing under the laws of the State of Western Australia and the Commonwealth
of Australia, is the sole owner of the Australian registered offshore drilling
rig Ron Tappmeyer  (official no.  855213) (all of  the aforementioned  vessels
being herein collectively referred to as the "Rigs");

            WHEREAS, it is a  condition precedent to  the making of Loans  and
the  issuance  of Letters  of Credit  under the  Credit  Agreement and  to the
occurrence of the Effective  Date that the Assignors  shall have executed  and
delivered to the Collateral Agent this Agreement; and

            WHEREAS, the Assignors desire to execute this Agreement to satisfy
the conditions described in the preceding paragraph;

            NOW, THEREFORE, in consideration  of the benefits accruing  to the
Assignors, the receipt and  sufficiency of which are hereby  acknowledged, the
Assignors  hereby make  the following  representations  and warranties  to the
Collateral Agent and hereby  covenant and agree  with the Collateral Agent  as
follows:

            SECTION 1.  Obligations Secured.

            1.01  Obligations Secured.  The Agreement  is made for the benefit
of the Secured Creditors to secure (i) the full and prompt payment when due of
(x) the principal of and interest  on the Notes issued, and Loans  made, under
the  Credit Agreement, and  all reimbursement obligations  and Unpaid Drawings
with respect  to the Letters of  Credit issued under the  Credit Agreement and
(y)  all other  obligations and  indebtedness (including,  without limitation,
indemnities,  Fees  and  interest thereon)  of  the  Borrower  to the  Secured
Creditors, whether now existing or hereafter incurred under, arising out of or
in connection with the Credit Agreement and the other Credit Documents and the
due  performance  and compliance  by  the  Borrower  with  all of  the  terms,
conditions  and agreements  contained in  the Credit  Agreement and  the other
Credit Documents;  (ii) any and all  sums advanced by the  Collateral Agent in
order  to preserve  the Collateral  (as hereinafter  defined) or  preserve its
security interest in the Collateral; (iii)  in the event of any proceeding for
the collection or enforcement of any indebtedness, obligations, or liabilities
of the  Borrower referred to  in clause (i) above,  after an Event  of Default
shall  have occurred  and  be  continuing,  the  reasonable  expenses  of  the
Collateral Agent of re-taking,  holding, preparing for sale or  lease, selling
or  otherwise disposing of or realizing on  the Collateral, or of any exercise
by  the Collateral  Agent of  its rights  hereunder, together  with reasonable
attorneys' fees of counsel to  the Collateral Agent and court costs;  and (iv)
all amounts paid by any Indemnitee as  to which such Indemnitee has the  right
to reimbursement under  Section 11  of this Agreement  (all such  obligations,
liabilities, sums and  expenses referred to in clauses  (i) through (iv) above
being collectively  referred to as the "Obligations").  It is acknowledged and
agreed that the "Obligations"  shall include extensions of credit of the types
described above, whether outstanding on the date of this Agreement or extended
from time to time after the date of this Agreement.


            SECTION 2.  ASSIGNMENT OF EARNINGS.

            2.01  The  Assignors,  as  legal  and  beneficial  owners,  hereby
assign, transfer and set over unto the Collateral Agent for the benefit of the
Secured  Creditors  and their  successors and  assigns,  and hereby  grant the
Collateral Agent  a security interest in, all of their respective right, title
and  interest in  and to  (collectively, the  "Earnings Collateral"):  (i) the
earnings of  the Rigs from any  source; (ii) all moneys  or other compensation
payable by  reason of requisition  of title  or for hire  or other  compulsory
acquisition  of the Rigs;  and (iii) all  proceeds of the foregoing.   As used
herein, "earnings" in (i) means:

                  (a)   all rent, charterhire and  other moneys and rights and
                        claims to moneys other than the local currency portion
                        necessary to cover direct operating  expenses relating
                        to   the  relevant   contract  (the   "Local  Currency
                        Portion");

                  (b)   all the Assignor's right, title and interest to and in
                        any moneys  whatsoever payable  to the  Assignor under
                        any  bareboat or  time charter, drilling  contract, or
                        other contract for the use or  employment of the Rigs,
                        and all  other rights and benefits whatsoever accruing
                        to the  Assignor  thereunder, including  (but  without
                        prejudice  to the  generality  of  the foregoing)  all
                        claims for damages for any  breach by any charterer or
                        other  party  thereto of  any  such  bareboat or  time
                        charter,  drilling contract, or other contract for the
                        use or employment of the Rigs; and

                  (c)   all freights  (if any), passage moneys  (if any), hire
                        moneys (if any), compensation  (if any) payable to the
                        Assignor in  the event of the requisition  of the Rigs
                        for hire, remuneration for salvage and towage services
                        (if any), demurrage and detention moneys (if any), and
                        any other earnings whatsoever due or  to become due to
                        the Assignor.

            2.02  Subject to the provisions of Section 2.03 of this Agreement,
the Collateral Agent's  security interest in all  accounts receivable included
in, or representing proceeds of,  the Earnings Collateral shall  automatically
be and be deemed released, without the need for  any action on the part of the
Collateral Agent, from  time to time as such accounts  receivable arise or are
created,  or  as  funds representing  payments  of  such  Collateral (or  part
thereof) are collected by the applicable Assignor. 

            2.03  Upon the  occurrence  of an  Event  of Default  pursuant  to
Section 9.05 of the Credit Agreement (a "Bankruptcy  Default") and without any
further act or notice, or upon the giving by the Collateral Agent of a written
notice (a "Release Termination  Notice") to any Assignor after  the occurrence
and  during the continuance of an Event  of Default, the automatic release set
forth in Section 2.02 of this Agreement shall terminate.

            2.04  Upon the occurrence  of an Event  of Default, the  Assignors
hereby represent, warrant and undertake that:

                  (a)   notice of  this Agreement in the  form attached hereto
                        as  Exhibit  1  will  be  promptly  delivered  to  any
                        charterers of the Rigs; and

                  (b)   it  will  use  its good  faith  efforts  to  cause any
                        charterer to  execute a Consent and  Agreement to this
                        Agreement in the form attached hereto as Exhibit 2 and
                        deliver such Consent  and Agreement to  the Collateral
                        Agent.

            2.05  Upon the occurrence  of an Event of  Default, the Collateral
Agent  shall  be entitled  to receive  all payments  of  earnings of  the Rigs
payable to the Assignors and  assigned hereby.  Such payment shall be  made to
the account of the Collateral Agent, and the Assignors shall cause all sums so
payable  to the Assignors  and assigned hereby  to be paid  directly into such
account.

            2.06  It  is  hereby  expressly  agreed  that, anything  contained
herein  to the  contrary notwithstanding,  the Assignors  shall  remain liable
under  all charters  and  contracts pertaining  to  the  Rigs to  perform  the
obligations assumed by  it thereunder, and the Collateral  Agent shall have no
obligation  or liability  of any nature  whatsoever under any  such charter or
contract  by reason  of, or  arising  out of,  this Agreement,  nor shall  the
Collateral  Agent  be required  to assume  or be  obligated  in any  manner to
perform or  fulfill any obligation of  the Assignors under or  pursuant to any
such charter or contract or to make any payment or make any inquiry as  to the
nature  or sufficiency of  any payment received  by the Collateral  Agent, or,
unless and until indemnified to its satisfaction, to present or file any claim
or to take any  other action to collect or enforce the  payment of any amounts
which may have been assigned to it or to which it may be entitled hereunder or
pursuant hereto at any time or times.

            2.07  The respective Assignor shall promptly notify the Collateral
Agent  in writing  of the  commencement and  termination of any  period during
which any of the Rigs owned by it is requisitioned.

            2.08  Upon the occurrence of  an Event of Default, the  Collateral
Agent has the right to give notice of this Agreement to all account debtors.

            2.09  The  Collateral Agent  shall  not be  required  to make  any
inquiry as  to  the nature  or  sufficiency of  any  payment received  by  the
Collateral  Agent, or, unless  and until indemnified   to its satisfaction, to
present or file any  claim, or to take any other action  to collect or enforce
the payment of any amounts which may have  been assigned to it or to which  it
may be entitled hereunder or pursuant hereto at any time or times.

            SECTION 3.  COLLATERAL ASSIGNMENT OF INSURANCE

            3.01  The Assignors  hereby sell,  assign, transfer, set  over and
grant a security interest unto the Collateral Agent as collateral security for
the Obligations, in and  to the following (all of the following, collectively,
the "Insurance  Collateral" and,  together with  the Earnings  Collateral, the
"Collateral"):    (i)  all  insurances  (including,  without  limitation,  all
certificates of entry in  protection and indemnity and war  risks associations
or  clubs) in  respect  of such  Rigs,  whether heretofore,  now  or hereafter
effected,  and all renewals  of or replacements  for the same,  (ii) except as
hereinafter  provided, all  claims, returns  of premium  and other  moneys and
claims  for  moneys  due  and  to become  due  under  or  in  respect  of said
insurances,  (iii) all other  rights of the  Assignors under or  in respect of
said insurances and (iv) any proceeds of any of the foregoing. 

            3.02  It is expressly agreed that anything herein contained to the
contrary  notwithstanding,  the  Assignors  shall  remain  liable  under  said
insurances to perform all of the  obligations assumed by it thereunder and the
Collateral Agent  shall have  no obligation  or liability  (including, without
limitation,  any  obligation  or liability  with  respect  to  the payment  of
premiums, calls or  assessments) under said insurances by reason of or arising
out  of this  instrument  of  assignment nor  shall  the  Collateral Agent  be
required  or obligated in any manner to  perform or fulfill any obligations of
the  Assignors under or pursuant to said insurances  or to make any payment or
to make any inquiry as to the nature or sufficiency of any payment received by
it or to present or file any claim,  or to take any other action to collect or
enforce the payment of any amounts which or may have been assigned to it or to
which it may be entitled hereunder at any time or times.

            3.03  The Assignors hereby covenant and agree to deliver notice of
this Assignment, in the form of  Annex I hereto, to all underwriters  and that
where  the  consent of  any underwriter  is required  pursuant  to any  of the
insurances assigned hereby,  the Assignor shall use its good  faith efforts to
obtain such consent in the form of Annex II hereto, and evidence thereof shall
be given to  the Collateral Agent, and  there shall be duly endorsed  upon all
slips,  cover  notes, policies,  certificates  of entry  or  other instruments
issued or to be issued in  connection with the insurances assigned hereby such
clauses as  to additional named assured or loss payees as the Collateral Agent
may  reasonably request.  In all cases,  unless otherwise agreed in writing by
the  Collateral Agent, such slips, cover notes, notices, certificates of entry
or  other  instruments shall  show  the  Collateral  Agent and  the  Banks  as
additional named  assured and  shall provide  that there will  be no  recourse
against the Collateral Agent for payment of premiums, calls or assessments.

            3.04  In the event  that the Insurance  Collateral or any  portion
thereof is  sold in connection  with a sale permitted  by Section 8.02  of the
Credit Agreement  or is otherwise  released at the  direction of the  Required
Banks (or all the Banks, to the extent required by Section 12.12 of the Credit
Agreement), the Collateral Agent, at the request and expense of the Assignors,
will duly assign, transfer and deliver to  the Assignors (without recourse and
without  any representation or warranty) such of the Insurance Collateral (and
releases therefor) as is then being (or  has been) so sold or released and  as
may be  in the possession of the Collateral Agent and has not theretofore been
released pursuant  to this Agreement.   At any time the  Assignors desire that
the Insurance Collateral or a portion  thereof be released as provided in this
section, the Assignors  shall deliver  to the Collateral  Agent a  certificate
signed by  an Authorized Officer (as defined  in the Credit Agreement) stating
that the release of  the Insurance Collateral or portion  thereof is permitted
pursuant to this section.

            3.05  The Assignors  hereby  authorize  the  Collateral  Agent  to
execute and file Financing  Statements (Form UCC-1) and amendments  thereto as
provided in Article 9 of the Uniform Commercial Code.


            SECTION 4.  FURTHER ASSURANCES.

            The Assignors  will, at any time  and from time to  time, at their
own expense, promptly execute and deliver  all further agreements, instruments
and other documents and take all further action that  may be necessary or that
the Collateral  Agent may reasonably request  in order to perfect  and protect
the security interest  purported to be created  hereby or otherwise to  enable
the  Collateral  Agent  to  exercise  and  enforce  its  rights  and  remedies
hereunder.

            SECTION 5.  TRANSFERS AND OTHER LIENS.

            The  Assignors  will  not,  without  the written  consent  of  the
Collateral Agent,  (i) sell,  assign  (by operation  of law  or otherwise)  or
otherwise  dispose of any interest in the  Collateral or (ii) create or suffer
to exist  any Lien, security interest  or other charge or  encumbrance upon or
with  respect to any Collateral except for  the security interest purported to
be created hereby.

            SECTION 6.  ATTORNEY-IN-FACT.

            The  Assignors   hereby  appoint  the  Collateral   Agent  as  the
Assignors' attorney-in-fact, with full authority only after  the occurrence of
and during the continuance  of an Event of Default, in the  place and stead of
the Assignors and in the name of the Assignors or otherwise, from time to time
in the Collateral Agent's discretion to execute any instrument and to take any
other action  which the  Collateral Agent  may in good  faith reasonably  deem
necessary or  advisable to  accomplish the  purposes of  this Agreement or  to
facilitate the  assignment or other transfer by the Collateral Agent of any or
all  of its rights hereunder,  including, without limitation,  (i) to receive,
endorse  and collect  all  instruments  made  payable  to  the  Assignors  and
representing  any interest  payment or  other distribution  in respect  of the
Collateral  and to give full  discharge for the  same and (ii)  to execute and
deliver any and all instruments and  other documents that the Collateral Agent
may request in connection with the exercise by the Collateral Agent of any  or
all  of its  rights hereunder.   Such appointment  of the  Collateral Agent as
attorney-in-fact is irrevocable and coupled with an interest.

            SECTION 7.  PERFORMANCE BY THE COLLATERAL AGENT.

            If the  Assignors  fail to  perform  any agreement  or  obligation
contained herein, the Collateral Agent itself may perform or cause performance
of such agreement or obligation, and the reasonable expenses of the Collateral
Agent (or  Collateral Trustee,  as the  case may  be)  incurred in  connection
therewith shall be payable to the  Collateral Agent (or Collateral Trustee, as
the case may be) by the Assignors.

            SECTION 8.    RESPONSIBILITY OF THE COLLATERAL AGENT.

            Other  than the  exercise of  reasonable care  to assure  the safe
custody of the  Collateral while  held hereunder, the  Collateral Agent  shall
have no duty  or liability to preserve rights pertaining  thereto and shall be
relieved  of all  responsibility for  the Collateral  upon surrendering  it or
tendering surrender of  it to the  Assignors.  The  Collateral Agent shall  be
deemed to have  exercised reasonable care in  the custody and  preservation of
the  Collateral  in its  possession if  the  Collateral is  accorded treatment
substantially  equal  to  that which  the  Collateral  Agent  accords its  own
property.    Without limiting  the generality  of  the foregoing,  neither the
Collateral Agent nor any of its directors, officers, agents or employees shall
be liable (i)  for any failure  to invest or reinvest  any cash in  accordance
herewith  in the  absence of  its  or their  own gross  negligence or  willful
misconduct  or for any  losses incurred by  reason of investments  made by the
Collateral  Agent pursuant  to Section 2.03  or (ii)  for any  action taken or
omitted to  be taken by the  Collateral Agent (x) in good  faith in accordance
with the advice of counsel with respect to any question as to the construction
of  any provision hereof  or any  action to be  taken by the  Collateral Agent
hereunder or (y) in accordance with any instructions or other notice which the
Collateral Agent believes in good faith to be properly given  by the Assignors
hereunder.   This Section 8 shall  have no application to  Christiania Bank og
Kreditkasse except in its capacity as Collateral Agent.

                  SECTION 9.  APPLICATION OF PROCEEDS.

            (a)  Subject  to the applicability  of Section  6.01(b) of the  US
Mortgages and  Panamanian Mortgages,  or Section  5(A)(ii)  of the  Australian
Mortgage, all  moneys collected by the Collateral Agent upon any sale or other
disposition of  any Collateral, together with all other moneys received by the
Collateral Agent hereunder or under any of the other Security Documents, shall
be applied as follows:

        (i) first, to the payment of all amounts owing the Collateral Agent of
      the type described in clauses (ii) and (iii) of Section 1.01;

       (ii) second, to the extent moneys remain after the application pursuant
      to  the  preceding clause  (i),  an  amount equal  to    the outstanding
      Obligations  shall be  paid  to the  Secured  Creditors as  provided  in
      Section  9(c), with each Secured  Creditor receiving an  amount equal to
      such Obligations  held by it or, if the proceeds are insufficient to pay
      in  full all such Obligations, its Pro  Rata Share (as defined below) of
      the amount remaining to be distributed; and

      (iii) third, to the extent moneys remain after the application  pursuant
      to  the preceding clauses (i) and (ii), and following the termination of
      this  Agreement pursuant to Section 12, any surplus then remaining shall
      be paid to the Assignors, subject, however, to the rights  of the holder
      of  any  then existing  Lien of  which the  Collateral Agent  has actual
      notice (without investigation).

            (b)   For purposes of this Agreement  "Pro Rata Share" shall mean,
when calculating a Secured Creditor's portion of any distribution or amount in
respect of any Obligations, the amount (expressed as  a percentage) equal to a
fraction the numerator of which is  the then unpaid amount of such Obligations
owing to or held by such Secured Creditor and the denominator  of which is the
then  outstanding amount of all such Obligations.  For purposes of determining
the amount  payable to  each Secured Creditor,  the Collateral Agent  shall be
entitled to request each Secured Creditor to furnish it with written notice of
the amount of  Obligations then owed to it and shall  be entitled to rely upon
the amounts stated therein in making such distributions.

            (c)   All  payments  required  to  be made  to  Secured  Creditors
hereunder shall be made to the Collateral Agent for the account of the Secured
Creditors.

            (d)   For  purposes of  applying payments  received in  accordance
with this Section 9, the Collateral  Agent shall be entitled to rely  upon (i)
the  Administrative  Agent under  the Credit  Agreement  and (ii)  the Secured
Creditors for a determination (which the Administrative Agent and each Secured
Creditor, by  their  acceptance of  the benefits  of this  Agreement shall  be
obligated to provide upon request of the Collateral Agent) of  the outstanding
Obligations owed  to the Secured  Creditors.  Unless  it has actual  knowledge
(including by way of written notice  from a Secured Creditor) to the contrary,
the Administrative Agent under the Credit Agreement, in furnishing information
pursuant  to the  preceding  sentence, and  the  Collateral Agent,  in  acting
hereunder, shall  be entitled to  assume that  (x) no  obligations other  than
principal,  interest  and regularly  accruing fees  are  owing to  any Secured
Creditor.

            SECTION  10.  REPRESENTATIONS,  WARRANTIES  AND  COVENANTS  OF THE
ASSIGNORS.

            The Assignors  hereby  warrant and  represent that  they have  not
assigned  or  pledged, and  hereby covenant  that,  without the  prior written
consent  thereof of  the Collateral  Agent, so  long as  this Agreement  shall
remain in effect, it  will not assign or pledge  the whole or any part  of the
right, title and interest hereby assigned to anyone other  than the Collateral
Agent, its successors  or assigns, and that they will not take or omit to take
any action, the taking or  omission of which might result in an  alteration or
impairment of  the Collateral  or  this Agreement,  or of  any  of the  rights
created in the Collateral by this Agreement.

            SECTION 11.  INDEMNITY.

            11.01  Indemnity.    (a)     The  Assignors  agree  to  indemnify,
reimburse  and  hold the  Collateral Agent,  each  Secured Creditor  and their
respective successors, assigns, employees, agents and servants (hereinafter in
this  Section 11.01 referred to individually as "Indemnitee," and collectively
as "Indemnitees") harmless from any and all liabilities, obligations, damages,
injuries, penalties,  claims, demands, actions,  suits, judgments and  any and
all  costs and expenses  (including reasonable  attorneys' fees  and expenses)
(for the purposes of this Section  11.01 the foregoing are collectively called
"expenses")  of whatsoever  kind and  nature imposed  on, asserted  against or
incurred by  any of the Indemnitees in  any way relating to  or arising out of
this  Agreement,  the  Credit Agreement,  any  other  Credit  Document or  the
documents executed in  connection herewith and therewith  or in any  other way
connected  with the administration of the transactions contemplated hereby and
thereby or the enforcement of any of the terms of, or the preservation  of any
rights  under any  such  Credit Document  or  other document,  or  in any  way
relating  to or arising out of the manufacture, ownership, ordering, purchase,
delivery,   control,  acceptance,  lease,  financing,  possession,  operation,
condition,  sale,  return  or other  disposition,  or  use  of the  Collateral
(including,  without  limitation, latent  or  other  defects, whether  or  not
discoverable), the  violation  of the  laws  of any  country, state  or  other
governmental body  or unit, any  tort (including,  without limitation,  claims
arising or  imposed under  the  doctrine of  strict liability,  or  for or  on
account of injury to or the death of any Person (including any Indemnitee), or
property  damage), or  contract claim;  provided that  no Indemnitee  shall be
indemnified  pursuant  to  this  Section  11.01(a)   for  losses,  damages  or
liabilities to the extent caused by the gross  negligence or wilful misconduct
of  such Indemnitee.   The  Assignors agree  that upon  written notice  by any
Indemnitee of the assertion  of such a liability, obligation,  damage, injury,
penalty, claim, demand, action,  judgment or suit, the Assignors  shall assume
full responsibility  for the defense thereof.   Each Indemnitee agrees  to use
its best efforts  to promptly notify  the Assignors of  any such assertion  of
which such Indemnitee has knowledge.

            (b)   Without limiting  the application  of Section 11.01(a),  the
Assignors agree  to pay,  or reimburse  the Collateral Agent  for any  and all
fees, costs  and expenses of  whatever kind  or nature incurred  in connection
with  the creation, preservation or protection of the Collateral Agent's Liens
on, and security  interest in, the Collateral,  including, without limitation,
all fees and taxes in  connection with the recording or filing  of instruments
and documents  in public offices, payment  or discharge of any  taxes or Liens
upon or in  respect of the Collateral, premiums for  insurance with respect to
the  Collateral  and all  other fees,  costs and  expenses in  connection with
protecting,  maintaining  or  preserving  the Collateral  and  the  Collateral
Agent's interest  therein, whether through judicial  proceedings or otherwise,
or in defending or prosecuting  any actions, suits or proceedings  arising out
of or relating to the Collateral.

            (c)   Without limiting the application of Section 11.01(a) or (b),
the Assignors  agree to pay, indemnify and  hold each Indemnitee harmless from
and  against any loss, costs,  damages and expenses  which such Indemnitee may
suffer,  expend   or  incur   in  consequence  of   or  growing  out   of  any
misrepresentation  by the Assignors in this Agreement, the Credit Agreement or
any other  Credit Document or in  any statement or writing  contemplated by or
made or delivered pursuant to or in connection with this Agreement, the Credit
Agreement or any other Credit Document.

            (d)   If and to the  extent that the obligations of  the Assignors
under  this  Section 11.01  are unenforceable  for  any reason,  the Assignors
hereby agree to make the maximum contribution to  the payment and satisfaction
of such obligations which is permissible under applicable law.

            11.02  Indemnity Obligations Secured by Collateral; Survival.  Any
amounts  paid by any Indemnitee  as to which such Indemnitee  has the right to
reimbursement shall  constitute Obligations  secured by  the Collateral.   The
indemnity  obligations of  the Assignors  contained in  this Section  11 shall
continue in  full force and effect notwithstanding the full payment of all the
Notes  issued under the Credit Agreement and  all of the other Obligations and
notwithstanding the discharge thereof.

            SECTION 12.  TERMINATION; RELEASE; PARTIAL RELEASE.

            (a)   On the date on which the Credit Agreement and all Letters of
Credit shall  have been terminated, when  no Note remains  outstanding and all
Obligations shall have  been irrevocably  paid in full,  this Agreement  shall
terminate,  and the  Collateral  Agent,  at the  request  and  expense of  the
Assignors,  will execute and  deliver to the Assignors  a proper instrument or
instruments acknowledging the satisfaction  and termination of this Agreement,
and  will duly assign, transfer and deliver to the Assignors (without recourse
and  without any  representation or  warranty) such  of the Collateral  as may
remain in the possession of  the Collateral Agent together with any  moneys at
the time held by the Collateral Agent hereunder.

            SECTION 13.  NOTICES, ETC.

            Except  as otherwise  expressly provided  herein, all  notices and
other  communications provided  for hereunder  shall  be delivered  and become
effective in accordance with Section 12.03 of the Credit Agreement.

            SECTION 14.  MISCELLANEOUS.

            14.01   This  Agreement shall  be binding  upon the  Assignors and
their  successors and  assigns (although  the Assignors  may not  assign their
rights or obligations under this Agreement) and shall inure to  the benefit of
and  be enforceable by  the Collateral Agent  and its successors  and assigns.
The headings  in this Agreement are  for purposes of reference  only and shall
not limit  or define the  meaning hereof.  This  Agreement and the  rights and
obligations of the parties hereunder shall be construed in accordance with and
be governed  by the  law of  the State  of New  York.  This  Agreement may  be
executed in  any number of counterparts,  each of which shall  be an original,
but all of which shall constitute one instrument.  This Agreement shall become
effective on  the date on  which each of the  parties shall have  executed and
delivered a  copy hereof.  In the  event that any provision  of this Agreement
shall at any time for any reason be declared or decided to be invalid, void or
otherwise inoperative by  a court of competent jurisdiction,  such declaration
or decision shall not affect the validity of any other provision or provisions
of this Agreement, or the validity of this Agreement as a whole.  In the event
that by reason of any law or regulation  in force or to become in force, or by
reason of a ruling  of any court  of competent jurisdiction,  or by any  other
reason  whatsoever,  this  Agreement  is  rendered  either  wholly  or  partly
defective,  the  Assignors   shall  furnish  the  Collateral   Agent  with  an
alternative assignment  or  security  and  do  all  such  other  acts  as  are
reasonably required in order to ensure  and give effect to the full  intent of
this Agreement.

            14.02  It is declared and agreed that the security created by this
Agreement shall be held by  the Collateral Agent as a continuing  security for
the payment of  all moneys which may at  any time and from time to  time be or
become  payable by  the Assignors  under the  Credit Agreement  and  the other
Credit Documents  and that the security  so created shall not  be satisfied by
all  intermediate payment or  satisfaction of  any part  of the  amount hereby
secured and that the security so created shall be in addition to and shall not
in  any way be prejudiced or affected  by any collateral or other security now
or hereafter held  by the Collateral Agent for  all or any part of  the moneys
hereby secured.

            14.03  Each  and every right, power and remedy  given herein or in
the Credit  Agreement or in the other Credit Documents to the Collateral Agent
shall be cumulative and shall  be in addition to every other  right, power and
remedy of the Collateral Agent now or hereafter existing at law, in equity  or
by statute, and each and  every right, power and remedy, whether  herein given
or otherwise  existing, may be  exercised from  time to time,  in whole or  in
part, and  as often  and  in such  order as  may be  deemed  expedient by  the
Collateral Agent,  and the exercise or the commencement of the exercise of any
right, power or remedy shall  not be construed to be a waiver of  the right to
exercise at the same time or thereafter any other  right, power or remedy.  No
delay  or omission by  the Collateral  Agent in the  exercise of any  right or
power  in the pursuance of  any remedy accruing upon any  breach or default by
the Assignors shall impair any such right,  power or remedy or be construed to
be  a waiver  of any  such right,  power or  remedy or  to be  an acquiescence
therein;  nor shall the acceptance by the  Collateral Agent of any security or
of any payment  of or on account of any of  the amounts due from the Assignors
to the  Collateral Agent and  maturing after any  breach or default  or of any
payment on account  of any past breach or default be  construed to be a waiver
of any right to take advantage of any future breach or default or of  any past
breach or default not completely cured thereby.

            SECTION 15.  WAIVER; AMENDMENT.

            None of the terms and conditions of this Agreement may be changed,
waived, modified  or varied in  any manner whatsoever  unless in writing  duly
signed by the Assignors and  the Collateral Agent (with the consent  of either
the  Required Banks  (as defined in  the Credit  Agreement) or,  to the extent
required by Section 12.12 of the Credit Agreement, all of the Banks).

            SECTION 16.  SECURED CREDITOR ACKNOWLEDGMENT.

            By accepting the benefits of this Agreement, each Secured Creditor
acknowledges  and agrees  that the  rights and  obligations of  the Collateral
Agent shall be as set forth in Section 12 of the Credit Agreement.


            IN WITNESS  WHEREOF, the Assignors  and the Collateral  Agent have
caused  this Agreement  to be  executed by  their duly  elected  officers duly
authorized as of the date first above written.


ADDRESS:                      READING & BATES DRILLING CO.

901 Threadneedle
Suite 200
Houston, Texas  77079         By________________________________
Attention:  General Counsel                     Title:  
Tel: (713) 496-5000
Fax: (713) 496-0285
                              READING & BATES EXPLORATION CO.


                              By_______________________________
                                Title:


                              READING & BATES (A) PTY. LTD.


                              By_______________________________
                                Title:


                              READING AND BATES BORNEO DRILLING
                                CO., LTD.


                              By_______________________________
                                Title:


                              READING & BATES OFFSHORE LIMITED


                              By_______________________________
                                Title:



                              HRB RIG CORPORATION


                              By_______________________________
                                Title:



11 West 42nd Street            CHRISTIANIA BANK og KREDITKASSE,
New York, New York  10036       NEW YORK BRANCH, as Collateral Agent
Attention: Hans Chr. Kjelsrud   
Tel: (212) 827-4814
Fax: (212) 827-4888
                              By________________________________
                                                Title:  


                              By________________________________
                                                Title:  



                                                                EXHIBIT 1     
                                                                to            
                                                            Security Agreement


                             NOTICE OF ASSIGNMENT

TO:

TAKE NOTICE THAT:

      By a Security Agreement, dated  the __ day of November, 1996  made by us
      to  Christiania Bank  og  Kreditkasse, as  agent  (the "Assignee"),  and
      relating to the  [United States] [Panamanian]  [Australian] flag  vessel
      ________ (the "Rig"), we have assigned to the Assignee as  from the date
      hereof all our right, title and interest in and to any moneys whatsoever
      payable  to  us  under  that  certain [Charter  Contract]  dated  as  of
      ________,  ____  as  at  any  time   amended  (the  "Contract")  between
      yourselves and the  undersigned concerning the Rig, as  the Contract may
      at  any time  be  amended  or supplemented,  and  all other  rights  and
      benefits whatsoever accruing  to us  which arise or  may arise from  the
      operation of the Rig under the Contract including (but without prejudice
      to the  generality  of the  foregoing) all  claims for  damages for  any
      breach of the Contract by you.

DATED THIS    day of        , ____.

                                    [                   ]


                                    By ___________________
                                        Its:



                                                                EXHIBIT 2     
                                                                   to  
                                                            Security Agreement


                             CONSENT AND AGREEMENT


The  undersigned, [                  ],  a party to the  Contract to which the
Notice of  Assignment delivered pursuant  to the foregoing  Security Agreement
refers (terms defined in the Security Agreement are used herein  with the same
meaning), in  consideration of the sum  of one dollar ($1.00)  lawful money of
the United States  of America and other good and  valuable consideration, paid
by Christiania Bank og Kreditkasse, as agent (the  "Assignee"), the receipt of
which is hereby  acknowledged, hereby acknowledges notice of  and consents and
agrees to  the foregoing collateral assignment  of earnings and to  all of the
terms thereof  and agrees  that:  (1) it  will make  payment  directly to  the
account advised by the Assignee,  of all moneys due and to become  due from it
under the  Contract until receipt of written notice from the Assignee that all
obligations to the Banks secured by said Security Agreement have  been paid in
full; and  (2) any such payment  shall be final  and the undersigned  will not
seek to recover from the Assignee for any reason whatsoever any moneys paid by
the undersigned to the  Assignee by virtue of the foregoing Security Agreement
and this  Consent and  Agreement but  this shall  not prevent  the set  off or
credit against  or deduction from any moneys payable to the Assignee by virtue
of said Security Agreement of amounts owing to the undersigned by the Assignor
under the Contract.

[           ], as charterer, confirms and agrees  that the Contract is in full
force  and effect  and is  enforceable in  accordance with  its terms  and the
Assignor is not in default thereunder.

This Consent  and Agreement shall be  governed by and  construed in accordance
with  the  internal laws  of  the  State of  New  York,  without reference  to
principles of conflicts of law.

Dated: ___________, ____


                                    [                ]


                                    By _________________



                                                                  ANNEX I 
                                                                    to 
                                                            Security Agreement 



                            NOTICE OF ASSIGNMENT


                                    (the   "Owner"),   the
    owner  of the [United  States] [Panamanian]  [Australian] flag offshore
    drilling rig                (the "Rig"), HEREBY GIVES NOTICE that by  a
    Security Agreement dated  November __, 1996 and made between  the Owner
    and  Christiania Bank  og Kreditkasse, New  York Branch,  as Collateral
    Agent (the  "Assignee") for itself and  certain other Banks,  the Owner
    assigned to  the Assignee all of the  Owner's right, title and interest
    in and  to all  insurances and  the benefit  of all  insurances now  or
    hereafter taken out in respect of  the Rig.  This Notice of  Assignment
    and loss payable clauses acceptable  to the Assignee are to be indorsed
    on all policies and certificates of entry evidencing such insurance.


                                              [OWNER]

                                              By                        
                                                 Its:





                                                                ANNEX II     
                                                                  to            
                                                           Security Agreement



                               CONSENT AND AGREEMENT


    The  undersigned, [                 ], a party to the Contract to which
    the Notice of  Assignment delivered pursuant to the  foregoing Security
    Agreement  refers  (terms defined  in the  Security Agreement  are used
    herein with  the  same  meaning),  hereby acknowledges  notice  of  and
    consents  and  agrees   to  the  foregoing  collateral   assignment  of
    insurance and to all of the terms thereof and agrees  that it will make
    payment directly  to the  account advised  by the  Christiania Bank  og
    Kreditkasse, New  York Branch (the "Assignee"),  of all moneys  due and
    to become  due from  it under  the Contract  until  receipt of  written
    notice from the Assignee  that all obligations to the Banks  secured by
    said Security Agreement have been paid in full.

    This  Consent and  Agreement  shall be  governed  by and  construed  in
    accordance  with the internal  laws of the  State of  New York, without
    reference to principles of conflicts of law.

    Dated: ___________, ____

                                                    [                ]


                                                    By _________________


                                                                Exhibit 10.119

                              SUBSIDIARY GUARANTY


            SUBSIDIARY GUARANTY,  dated as  of November 13,  1996 made  by the
undersigned  (each a "Guarantor" and  collectively, the "Guarantors").  Except
as otherwise  defined herein,  terms used  herein and  defined  in the  Credit
Agreement (as hereinafter defined) shall be used herein as therein defined.


                             W I T N E S S E T H :


            WHEREAS, Reading & Bates Corporation, Reading & Bates Drilling Co.
(the  "Borrower"),  various financial  institutions  from time  to  time party
thereto (the "Banks"), Banque Indosuez and Credit Lyonnais New York Branch, as
Documentation Agents,   and Christiania Bank og Kreditkasse,  New York Branch,
as  Administrative  Agent (the  "Administrative  Agent") have  entered  into a
Credit  Agreement, dated  as of  November 13,  1996 (as  amended, modified  or
supplemented from  time to  time, the "Credit  Agreement"), providing  for the
making  of Loans and the issuance of,  and participation in, Letters of Credit
as  contemplated   therein  (the   Banks,   the  Documentation   Agents,   the
Administrative Agent,  the Letter of  Credit Issuer, and the  Collateral Agent
are herein collectively called the "Creditors");

            WHEREAS,  the Borrower owns,  directly or indirectly,  100% of the
capital stock of each Guarantor;

            WHEREAS, it is a condition to the making of Loans and the issuance
of, and  participation in, Letters of  Credit under the Credit  Agreement that
each Guarantor shall have executed and delivered this Guaranty; and

            WHEREAS, each  Guarantor will obtain benefits  from the incurrence
of Loans  by the  Borrower and the  issuance of  Letters of  Credit under  the
Credit Agreement and,  accordingly, desires to execute this  Guaranty in order
to satisfy the  conditions described in the preceding paragraph  and to induce
the Banks  to make Loans  to the Borrower and  the Letter of  Credit Issuer to
issue Letters of Credit;


            NOW, THEREFORE,  in  consideration  of  the  foregoing  and  other
benefits accruing to each Guarantor, the receipt  and sufficiency of which are
hereby acknowledged, each Guarantor hereby makes the following representations
and warranties  to the  Creditors and hereby  covenants and  agrees with  each
Creditor as follows:

            1.  Each   Guarantor,  jointly  and   severally,  irrevocably  and
unconditionally, guarantees, as  primary obligor and not merely  as surety, to
the Creditors  the full  and prompt  payment when due  (whether at  the stated
maturity, by acceleration or  otherwise) of (x) the principal  of and interest
on the Notes issued by, and  the Loans made to, the Borrower under  the Credit
Agreement, and  all reimbursement obligations and Unpaid Drawings with respect
to the Letters of Credit  issued under the Credit Agreement and  (y) all other
obligations (including obligations  which, but  for the  automatic stay  under
Section 362(a) of the Bankruptcy Code, would become due) and liabilities owing
by the Borrower to the Creditors under the Credit Agreement  (including, with-
out limitation,  indemnities,  Fees  and interest  thereon)  now  existing  or
hereafter  incurred under,  arising out  of or  in connection with  the Credit
Agreement or any other Credit Document  and the due performance and compliance
with the  terms of the Credit  Documents by the Borrower  (all such principal,
interest,  liabilities and  obligations being  herein collectively  called the
"Guaranteed Obligations").   Each Guarantor understands,  agrees and  confirms
that the  Creditors may  enforce this Guaranty  up to the  full amount  of the
Guaranteed Obligations  against each Guarantor without  proceeding against any
other  Guarantor or  the Borrower,  against  any security  for the  Guaranteed
Obligations,  or under  any other guaranty  covering all  or a  portion of the
Guaranteed Obligations.   All payments  by each Guarantor under  this Guaranty
shall be made  on the same basis  as payments by  the Borrower under  Sections
4.03 and 4.04 of the Credit Agreement.

            2.  Additionally,   each   Guarantor,   jointly   and   severally,
unconditionally  and  irrevocably,  guarantees  the  payment of  any  and  all
Guaranteed Obligations of the Borrower to  the Creditors whether or not due or
payable by the Borrower upon the occurrence in respect  of the Borrower of any
of  the  events  specified in  Section  9.05  of  the  Credit  Agreement,  and
unconditionally and irrevocably,  jointly and severally, promises  to pay such
Guaranteed Obligations to the Creditors, or order, on  demand, in lawful money
of  the United States.  This Guaranty  shall constitute a guaranty of payment,
and not of collection.

            3.  The  liability of  each Guarantor  hereunder is  exclusive and
independent of any  security for or other guaranty of  the indebtedness of the
Borrower whether  executed by such  Guarantor, any other Guarantor,  any other
guarantor or by any other party, and the liability of each Guarantor hereunder
shall not be  affected or impaired by (a)  any direction as to  application of
payment by  the Borrower or by  any other party,  (b) any other  continuing or
other guaranty,  undertaking or  maximum liability  of a  guarantor or  of any
other party as to the indebtedness of  the Borrower, (c) any payment on or  in
reduction  of any  such other  guaranty or  undertaking, (d)  any dissolution,
termination  or increase, decrease or change in personnel by the Borrower, (e)
any payment made to any Creditor on the indebtedness which any Creditor repays
the  Borrower  pursuant to  court  order  in  any bankruptcy,  reorganization,
arrangement, moratorium or  other debtor relief proceeding, and each Guarantor
waives any right to the deferral or modification of  its obligations hereunder
by reason of any such proceeding, (f) any action or  inaction by the Creditors
as contemplated  in Section 6 hereof,  or (g) any  invalidity, irregularity or
unenforceability  of  all or  part of  the  Guaranteed Obligations  or  of any
security therefor.

            4.  The obligations of each Guarantor hereunder are independent of
the obligations of any  other Guarantor, any other guarantor  or the Borrower,
and a  separate action or actions  may be brought and  prosecuted against each
Guarantor whether  or not action is  brought against any  other Guarantor, any
other guarantor  or the Borrower and  whether or not any  other Guarantor, any
other guarantor or the Borrower be joined  in any such action or actions.  Any
payment by  the  Borrower or  other circumstance  which operates  to toll  any
statute of limitations as to the Borrower shall operate to toll the statute of
limitations as to each Guarantor.

            5.  Each Guarantor  hereby waives  notice  of acceptance  of  this
Guaranty  and  notice of  any  liability to  which  it may  apply,  and waives
promptness, diligence,  presentment, demand  of  payment, protest,  notice  of
dishonor or nonpayment of any such liabilities, suit or taking of other action
by  the Administrative  Agent or  any other  Creditor  against, and  any other
notice  to, any  party liable  thereon  (including such  Guarantor, any  other
guarantor or the Borrower).

            6.  Any Creditor may at any time and from time to time without the
consent of, or  notice to, any Guarantor, without  incurring responsibility to
such  Guarantor,  without  impairing  or  releasing  the  obligations  of such
Guarantor hereunder, upon  or without any terms or conditions  and in whole or
in part:

            (a)   change  the manner,  place  or terms  of payment  of, and/or
      change  or extend the  time of  payment of, renew  or alter, any  of the
      Guaranteed Obligations, any security therefor, or any liability incurred
      directly or indirectly in respect  thereof, and the guaranty herein made
      shall apply  to  the Guaranteed  Obligations  as so  changed,  extended,
      renewed or altered;

            (b)   take and  hold security  for the  payment of  the Guaranteed
      Obligations and  sell, exchange,  release,  surrender, realize  upon  or
      otherwise  deal with  in any  manner and  in any  order any  property by
      whomsoever  at any  time pledged  or mortgaged  to secure,  or howsoever
      securing, the  Guaranteed Obligations or any  liabilities (including any
      of those hereunder)  incurred directly or indirectly  in respect thereof
      or hereof, and/or any offset thereagainst;

            (c)   exercise or  refrain from exercising any  rights against the
      Borrower or others or otherwise act or refrain from acting;

            (d)   settle or compromise any of the Guaranteed Obligations,  any
      security  therefor or any  liability (including any  of those hereunder)
      incurred directly  or indirectly in  respect thereof or hereof,  and may
      subordinate the payment of all or any part thereof to the payment of any
      liability  (whether due  or not)  of  the Borrower  to creditors  of the
      Borrower;

            (e)   apply any sums  by whomsoever paid or  howsoever realized to
      any liability or liabilities of the Borrower to the Creditors regardless
      of what liabilities of the Borrower remain unpaid;

            (f)   release or substitute any one or more endorsers, guarantors,
      any Credit Party or other obligors;

            (g)   consent to or  waive any breach of, or any  act, omission or
      default under, any of the Credit  Documents or any of the instruments or
      agreements referred to therein, or otherwise amend, modify or supplement
      any  of the Credit Documents or any  of such other instruments or agree-
      ments; and/or

            (h)   act  or  fail to  act  in  any manner  referred  to  in this
      Guaranty which  may deprive such  Guarantor of its right  to subrogation
      against the  Borrower to  recover full indemnity  for any  payments made
      pursuant to this Guaranty.

            7.  No invalidity, irregularity or unenforceability of all or  any
part of the Guaranteed Obligations  or of any security therefor shall  affect,
impair or be  a defense to this Guaranty, and this  Guaranty shall be primary,
absolute and unconditional notwithstanding the  occurrence of any event or the
existence  of  any other  circumstances  which  might  constitute a  legal  or
equitable discharge  of a surety  or guarantor except  payment in full  of the
Guaranteed Obligations.

            8.  This Guaranty is a continuing one and all liabilities to which
it applies  or may apply under the terms hereof shall be conclusively presumed
to have been created in reliance hereon.   No failure or delay on the  part of
any  Creditor in  exercising any  right,  power or  privilege hereunder  shall
operate  as a waiver thereof; nor shall any  single or partial exercise of any
right, power  or privilege  hereunder preclude any  other or  further exercise
thereof or the exercise  of any other right,  power or privilege.   The rights
and remedies  herein expressly specified  are cumulative and not  exclusive of
any rights or remedies which  any Creditor would otherwise have.  No notice to
or demand  on any Guarantor  in any case  shall entitle such Guarantor  to any
other further notice or demand in similar or other circumstances or constitute
a waiver of the rights of any  Creditor to any other or further action  in any
circumstances without notice or demand.   It is not necessary for any Creditor
to  inquire  into  the capacity  or  powers  of the  Borrower  or  any  of its
Subsidiaries  or  the  officers,  directors,  partners  or  agents  acting  or
purporting  to act  on its  behalf, and  any indebtedness  made or  created in
reliance  upon the  professed  exercise  of such  powers  shall be  guaranteed
hereunder.

            9.  Any indebtedness of the Borrower  now or hereafter held by any
Guarantor is hereby  subordinated to the indebtedness  of the Borrower to  the
Creditors; and  such indebtedness of  the Borrower  to any  Guarantor, if  the
Administrative Agent,  after an  Event of Default  has occurred,  so requests,
shall be collected, enforced and received by such Guarantor as trustee for the
Creditors and be paid over to the  Creditors on account of the indebtedness of
the  Borrower to  the Creditors,  but without  affecting or  impairing in  any
manner  the liability of  such Guarantor  under the  other provisions  of this
Guaranty.  Prior to the  transfer by any Guarantor  of any note or  negotiable
instrument evidencing any indebtedness of the Borrower to such Guarantor, such
Guarantor shall mark such note or negotiable instrument with a legend that the
same is subject to this subordination.  Without limiting the generality of the
foregoing, each Guarantor hereby  agrees with the Creditors  that it will  not
exercise any right of subrogation which it may at any time otherwise have as a
result  of  this Guaranty  (whether  contractual,  under  Section 509  of  the
Bankruptcy Code  or  otherwise) until  all  Guaranteed Obligations  have  been
irrevocably paid in full in cash.

            10.  (a)  Each Guarantor  waives any  right  (except as  shall  be
required  by applicable law and cannot be  waived) to require the Creditors to
(A) proceed against the Borrower, any other Guarantor, any  other guarantor or
any  other party, (B)  proceed against or  exhaust any security  held from the
Borrower,  any other Guarantor, any other guarantor  or any other party or (C)
pursue any other remedy  in the Creditors' power  whatsoever.  Each  Guarantor
waives any defense based on or arising out of any defense of the Borrower, any
other Guarantor, any other guarantor or any other party other  than payment in
full of the  Guaranteed Obligations, including without  limitation any defense
based  on  or  arising  out  of the  disability  of  the  Borrower,  any other
Guarantor, any other  guarantor or any other party, or the unenforceability of
the  Guaranteed  Obligations or  any  part  thereof  from  any cause,  or  the
cessation from any cause of  the liability of the Borrower other  than payment
in full of the Guaranteed Obligations.  The Creditors may,  at their election,
foreclose on any security held by the Administrative Agent or the other Credi-
tors by one or more judicial or nonjudicial sales, whether or not every aspect
of any  such sale  is  commercially reasonable  (to the  extent  such sale  is
permitted  by applicable  law),  or exercise  any other  right  or remedy  the
Creditors may have against the  Borrower or any other party, or  any security,
without affecting  or impairing  in  any way  the liability  of any  Guarantor
hereunder  except to the extent  the Guaranteed Obligations  have been paid in
full.  Each  Guarantor waives any defense arising out of  any such election by
the Creditors, even though such election  operates to impair or extinguish any
right  of  reimbursement or  subrogation  or  other right  or  remedy  of such
Guarantor against the Borrower or any other party or any security.

            (b)  Each   Guarantor  waives   all   presentments,  demands   for
performance,  protests and  notices, including  without limitation  notices of
nonperformance, notices of protest, notices of dishonor, notices of acceptance
of this Guaranty,  and notices of the existence, creation  or incurring of new
or additional  indebtedness.   Each Guarantor  assumes all  responsibility for
being and  keeping itself informed  of the Borrower's financial  condition and
assets, and of all other circumstances  bearing upon the risk of nonpayment of
the Guaranteed Obligations and the nature, scope and extent of the risks which
such Guarantor  assumes and  incurs hereunder, and  agrees that  the Creditors
shall  have no  duty to  advise  any Guarantor  of information  known to  them
regarding such circumstances or risks.

            11.  The Creditors agree that  this Guaranty may be enforced  only
by  the action of  the Administrative Agent  or the Collateral  Agent, in each
case  acting upon the instructions of the  Required Banks and that no Creditor
shall  have any  right individually  to  seek to  enforce or  to enforce  this
Guaranty, it  being understood and agreed that such rights and remedies may be
exercised by the Administrative Agent or the Collateral Agent for the  benefit
of the Creditors upon the terms of this Guaranty.  The Creditors further agree
that this Guaranty may not be enforced against any director, officer, employee
or stockholder of any Guarantor (except to the extent such stockholder is also
a Guarantor hereunder).

            12.  Each Guarantor  covenants and  agrees that  on and after  the
date hereof  and until  the termination  of the Total  Commitment and  when no
Letter of  Credit or Note  remains outstanding and all  Guaranteed Obligations
have been  paid in  full,  such Guarantor  shall take,  or  will refrain  from
taking, as the case may be, all actions  that are necessary to be taken or not
taken so that  no violation of any provision,  covenant or agreement contained
in Section 7 or 8 of the Credit Agreement, and so that no Event of Default, is
caused by the actions of such Guarantor or any of its Subsidiaries.

            13.  The Guarantors hereby  jointly and severally agree to pay all
reasonable out-of-pocket  costs and  expenses (x), after  an Event  of Default
shall have occurred and be continuing, of each Creditor in connection with the
enforcement  of this  Guaranty and  the protection  of such  Creditor's rights
hereunder   (including,   without   limitation,   the  reasonable   fees   and
disbursements of counsel  (including in-house counsel) employed by  any of the
Creditors)  and  (y)  of  the  Administrative Agent  in  connection  with  any
amendment, waiver  or consent relating hereto  (including, without limitation,
the  reasonable fees and disbursements of counsel (including in-house counsel)
employed by the Administrative Agent.

            14.  This  Guaranty shall be  binding upon each  Guarantor and its
successors and assigns  and shall inure  to the benefit  of the Creditors  and
their successors and assigns.

            15.  Neither  this  Guaranty  nor  any  provision  hereof  may  be
changed, waived, discharged  or terminated except with the  written consent of
the Required Banks (or to  the extent required by Section 12.12 of  the Credit
Agreement, with the written consent of each Bank) and each Guarantor  affected
thereby  (it being  understood that the  addition or release  of any Guarantor
hereunder shall  not  constitute a  change, waiver,  discharge or  termination
affecting any Guarantor other than the Guarantor so added or released).

            16.  Each Guarantor  acknowledges that an executed  (or conformed)
copy of each of the Credit Documents has been made available  to its principal
executive officers and such officers are familiar with the contents thereof.

            17.  In  addition to  any rights  now or  hereafter  granted under
applicable law  (including, without  limitation, Section 151  of the  New York
Debtor and Creditor Law) and not by way of limitation of any such rights, upon
the occurrence and during the continuance of an Event of Default (such term to
mean and  include any "Event  of Default" as  defined in the  Credit Agreement
continuing  after  any  applicable  grace period),  each  Creditor  is  hereby
authorized  at any time or from time  to time, without notice to any Guarantor
or to any other Person, any such notice being expressly waived, to set off and
to  appropriate and apply  any and all  deposits (general or  special) and any
other indebtedness at any time  held or owing by  such Creditor to or for  the
credit  or the  account  of such  Guarantor,  against and  on  account of  the
obligations  and liabilities  of such  Guarantor to  such Creditor  under this
Guaranty, irrespective  of whether or  not such  Creditor shall have  made any
demand  hereunder  and although  said  obligations,  liabilities, deposits  or
claims, or any of them, shall be contingent or unmatured.

            18.  All  notices,  requests,   demands  or  other  communications
pursuant hereto shall be deemed to have been duly given or made when delivered
to the Person to which such notice, request, demand or  other communication is
required or  permitted to be given  or made under this  Guaranty, addressed to
such  party at  (i) in the  case of  any Creditor,  as provided in  the Credit
Agreement and  (ii) in  the case of  any Guarantor, at  its address  set forth
opposite its  signature below; or in any case at  such other address as any of
the Persons listed above may hereafter notify the others in writing.

            19.  If  claim is  ever made  upon any  Creditor for  repayment or
recovery of any amount or amounts received  in payment or on account of any of
the Guaranteed Obligations and any of the aforesaid payees repays  all or part
of said amount by reason of (a) any  judgment, decree or order of any court or
administrative body having jurisdiction over such payee or any of its property
or (b)  any settlement or compromise of any such  claim effected by such payee
with any such  claimant (including the Borrower), then and  in such event each
Guarantor  agrees  that  any  such  judgment,  decree,  order,  settlement  or
compromise  shall be binding upon  such Guarantor, notwithstanding any revoca-
tion  hereof or  of  any  other instrument  evidencing  any  liability of  the
Borrower, and  such  Guarantor shall  be and  remain liable  to the  aforesaid
payees hereunder for the amount so  repaid or recovered to the same extent  as
if such amount had never originally been received by any such payee.

            20.  (a)  THIS GUARANTY  AND THE  RIGHTS  AND OBLIGATIONS  OF  THE
CREDITORS AND OF THE UNDERSIGNED HEREUNDER SHALL  BE GOVERNED BY AND CONSTRUED
IN  ACCORDANCE WITH THE  LAW OF THE  STATE OF NEW  YORK.  Any  legal action or
proceeding  with respect to this Guaranty or  any other Credit Document may be
brought in  the courts of  the State of  New York or  of the United  States of
America for  the Southern District of New York, and, by execution and delivery
of  this Guaranty, each Guarantor hereby accepts  for itself and in respect of
its property, generally and unconditionally, the jurisdiction of the aforesaid
courts and hereby  irrevocably waives any right  it may have to  object to the
laying  of venue of any such action or  proceeding in the aforesaid courts and
hereby further  irrevocably waives and agrees  not to plead or  claim that any
such  action or proceeding  has been brought  in an inconvenient  forum.  Each
Guarantor hereby  irrevocably designates, appoints and  empowers the Borrower,
with offices on the date hereof at 901 Threadneedle, Suite 200, Houston, Texas
77079 as its designee, appointee and agent to receive, accept and  acknowledge
for any on  its behalf, and in respect of its property, service or any and all
legal process, summons, notices and documents  which may be served in any such
action or  proceeding.  If for  any reason such designee,  appointee and agent
shall cease to be available to act as such, each Guarantor agrees to designate
a new designee, appointee and agent in New  York City on the terms and for the
purposes of  this provision satisfactory  to the Administrative Agent  for the
Banks under this Guaranty.  Each Guarantor further irrevocably consents to the
service of process  out of any of the aforementioned courts in any such action
or proceeding  by the  mailing of  copies thereof  by registered or  certified
mail, postage prepaid, to each Guarantor at its address set forth opposite its
signature  below.   Nothing  herein  shall  affect the  right  of  any of  the
Creditors to serve process in any other manner permitted by law or to commence
legal proceedings  or otherwise  proceed against each  Guarantor in  any other
jurisdiction.

            (b)  Each Guarantor hereby irrevocably waives any objection  which
it may now  or hereafter have to the  laying of venue of any  of the aforesaid
actions or proceedings arising out  of or in connection with this  Guaranty or
any  other credit  document brought in  the courts  referred to  in clause (a)
above and hereby  further irrevocably waives and agrees not  to plead or claim
in any such court that such action or proceeding brought in any such court has
been brought in an inconvenient forum.

            21.  In  the event that  all of the  capital stock of  one or more
Guarantors is sold or otherwise disposed  of or liquidated in compliance  with
the requirements  of Section  8.02 of  the Credit Agreement  (or such  sale or
other disposition has been approved  in writing by the Required Banks  (or all
Banks if required by Section 12.12 of the Credit Agreement))  and the proceeds
of such sale, disposition  or liquidation are  applied in accordance with  the
provisions of the  Credit Agreement, to the extent  applicable, such Guarantor
shall  be released from this Guaranty and this Guaranty shall, as to each such
Guarantor or  Guarantors, terminate, and have  no further force or  effect (it
being understood and agreed that the sale of any Person that owns, directly or
indirectly, the capital stock of any Guarantor shall be deemed to be a sale of
such Guarantor for the purposes of this Section 21).

            22.  At  any time  a payment  in respect  of the  Guaranteed Obli-
gations is  made under this  Guaranty, the right  of contribution, if  any, of
each Guarantor  against any other  Guarantor required to  make any  payment to
such  Guarantor  pursuant  to  this  Section  22  (a "Contributor")  shall  be
determined as provided  in the immediately following sentence,  with the right
of  contribution of each Guarantor to be  revised and restated as of each date
on  which  a  payment  (a  "Relevant  Payment")  is  made  on  the  Guaranteed
Obligations  under this Guaranty.  At any time that a Relevant Payment is made
by a Guarantor that results  in the aggregate payments made by  such Guarantor
in  respect of  the Guaranteed Obligations  to and  including the  date of the
Relevant  Payment  exceeding  such  Guarantor's  Contribution  Percentage  (as
hereinafter  defined) of  the aggregate  payments  made by  all Guarantors  in
respect  of  the Guaranteed  Obligations  to  and including  the  date  of the
Relevant  Payment (such  excess,  the "Aggregate  Excess  Amount"), each  such
Guarantor shall have a right of contribution against each Contributor who  has
made payments  in respect of the  Guaranteed Obligations to  and including the
date  of  the  Relevant   Payment  in  an  aggregate  amount  less  than  such
Contributor's Contribution  Percentage of the  aggregate payments made  to and
including the date of the Relevant Payment by all Guarantors in respect of the
Guaranteed  Obligations (the aggregate amount of  such deficit, the "Aggregate
Deficit Amount") in an  amount equal to (x) a fraction the  numerator of which
is the Aggregate Excess Amount of such Guarantor and the  denominator of which
is  the Aggregate  Excess  Amount  of all  Guarantors  multiplied by  (y)  the
Aggregate  Deficit  Amount  of  such  Contributor.   A  Guarantor's  right  of
contribution, if any,  pursuant to the preceding sentences shall  arise at the
time of each computation, subject to  adjustment to the time of any subsequent
computation; provided,  that no Guarantor may take  any action to enforce such
right until the Guaranteed Obligations have been paid in full,  all Letters of
Credit have terminated  and the Total Commitment has been terminated, it being
expressly recognized  and agreed  by all parties  hereto that  any Guarantor's
right  of  contribution  arising  pursuant  to this  Section  22  against  any
Contributor shall  be expressly junior  and subordinate to  such Contributor's
obligations and liabilities  in respect of the Guaranteed  Obligations and any
other  obligations owing under this Guaranty.   As used in this Agreement, (i)
each  Contributor's   "Contribution  Percentage"  shall  mean  the  percentage
obtained by dividing (x) the Adjusted Net Worth of such Contributor by (y) the
aggregate Adjusted Net Worth of all Guarantors; (ii)  the "Adjusted Net Worth"
of  each Guarantor  shall  mean the  greater  of (x)  the  Net Worth  of  such
Guarantor or (y) zero; and  (iii) the "Net Worth" of each Guarantor shall mean
the amount by which the fair salable  value of such Guarantor's assets on  the
Initial  Borrowing  Date  exceeds its  existing  debts  and  other liabilities
(including contingent liabilities, but without giving effect to any Guaranteed
Obligations arising under this Guaranty), in each case after  giving effect to
all transactions occurring on the Initial Borrowing Date.

            23.  Each  Guarantor recognizes  and agrees  that, except  for any
right of  contribution arising  pursuant to Section  22, until  the Guaranteed
Obligations have  been paid in full,  each Guarantor who makes  any payment in
respect of  the Guaranteed Obligations shall have  no right of contribution or
subrogation against any other  Guarantor in respect of such  payment, any such
right  of contribution  or subrogation  arising under  law or  otherwise being
expressly waived by all Guarantors  until the Guaranteed Obligations have been
paid in full.

            24.  Each Guarantor recognizes and acknowledges that the rights to
contribution arising hereunder shall constitute an asset in favor of the party
entitled to such  contribution.   In this connection,  each Guarantor has  the
right  to waive  its contribution  right against  any other  Guarantor to  the
extent  that after giving  effect to such  waiver such  Guarantor would remain
solvent, in the determination of the Required Banks.

            25.  This  Guaranty may be executed in  any number of counterparts
and by  the different parties hereto  on separate counterparts, each  of which
when so executed and  delivered shall be an original,  but all of which  shall
together  constitute one  and  the same  instrument.   A  set of  counterparts
executed by all the parties hereto shall be lodged with the Guarantors and the
Administrative Agent.

            26.  EACH GUARANTOR  HEREBY IRREVOCABLY  WAIVES  ALL RIGHTS  TO  A
TRIAL BY  JURY IN  ANY ACTION,  PROCEEDING OR COUNTERCLAIM  ARISING OUT  OF OR
RELATING  TO THIS  GUARANTY, THE  OTHER CREDIT  DOCUMENTS OR  THE TRANSACTIONS
CONTEMPLATED HEREBY OR THEREBY.

            27.  It  is  understood and  agreed  that  any  Subsidiary of  the
Borrower that is required  to execute a counterpart of  this Guaranty pursuant
to the  Credit Agreement shall  automatically become a Guarantor  hereunder by
executing a counterpart  hereof and delivering the same  to the Administrative
Agent.

            28.  All payments  made by  any Guarantor  hereunder will  be made
without setoff, counterclaim or other defense.

                              *     *     *     *

            IN WITNESS WHEREOF, each Guarantor  has caused this Guaranty to be
executed and delivered as of the date first above written.


Address for each Guarantor
 
c/o Reading & Bates Drilling Co.          READING & BATES
901 Threadneedle                          EXPLORATION CO.
Suite 200
Houston, Texas  77079                     By________________________
Attention:  General Counsel                       Title:
Tel: (713) 496-5000
Fax: (713) 496-0285
                                          READING & BATES (A)
                                          PTY. LTD.


                                          By________________________
                                                   Title:


                                          READING AND BATES BORNEO
                                          DRILLING CO., LTD.


                                          By________________________
                                                   Title:


                                          READING & BATES
                                          OFFSHORE, LIMITED


                                          By________________________
                                                  Title:


                                          HRB RIG CORPORATION


                                          By________________________
                                                    Title:


Accepted and Agreed to:

CHRISTIANIA BANK OG KREDITKASSE,
NEW YORK BRANCH, 
as Administrative Agent



By____________________________
          Title:


By____________________________
          Title:




                                                                Exhibit 10.120


                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996

                        READING & BATES EXPLORATION CO.

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee

                                 D. R. STEWART 

==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTERPAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
      9     ENFORCEABILITY AND TRUSTEE'S POWERS . . . . . . . . . . . . .  19 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  21 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  22 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  25 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  26 

      ACKNOWLEDGEMENT OF MORTGAGE
      EXHIBIT 1 FORM OF CREDIT AGREEMENT
      EXHIBIT 2 FORM OF SUBSIDIARY GUARANTY 

==============================================================================

THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 13th day  of
November, 1996

BY

(1)    READING &  BATES EXPLORATION CO.,  an Oklahoma  corporation having  its
       principal offices at 901  Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"),

IN FAVOR OF

(2)    CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK BRANCH, a  Norwegian banking
       corporation  having its office  at 11 West  42nd Street,  New York, New
       York, as  security trustee for  the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is  the sole owner of the  whole of the jack-up  drilling rig
       D. R. STEWART documented  under the laws and flag of  the United States
       of America with  Official Number 626904 of 6,494 gross  registered tons
       and 5,834 net registered tons (the "Rig").

(B)    By  a Credit  Agreement dated  as of  November  13, 1996  (as modified,
       amended  or supplemented  from time  to time,  the  "Credit Agreement")
       among  (i)  Reading   &  Bates  Corporation,  a   Delaware  corporation
       ("Holdings"),  (ii)   Reading  &  Bates   Drilling  Co.,  an   Oklahoma
       corporation  (the  "Borrower"),  (iii) the  banks  party  thereto  (the
       "Banks"), (iv) Credit  Lyonnais New York Branch and Banque Indosuez, as
       documentation agents (the "Documentation Agents")  and (v) the Trustee,
       as  administrative  agent,  arranger  and  security  trustee  (in  such
       capacity,  the  "Administrative  Agent")  (the  form  of  which  Credit
       Agreement together  with Exhibit B  thereto but  without the  remaining
       attachments  is attached  hereto  as Exhibit  1),  it was  agreed among
       other things that the Banks would  make available to the Borrower  upon
       the terms and conditions therein described a reducing  revolving credit
       facility  (the  "Facility")   in  an  aggregate  amount   at  any  time
       outstanding   of   Three   Hundred    Million   United States   Dollars
       (US$300,000,000), providing  for the making  of Loans and the  issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The obligations  of  the Borrower  with  respect  to the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the promissory notes of the Borrower payable to the  order of
       the respective  Banks (each  a "Note"  and, collectively,  the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed and delivered a  Subsidiary Guaranty (as modified, amended  or
       supplemented from time  to time,  the "Subsidiary Guaranty"),  the form
       of which  Subsidiary Guaranty is attached hereto as Exhibit 2, in favor
       of  the  Administrative  Agent  guaranteeing  the  performance  by  the 
       Borrower of  its obligations under  the Credit Agreement  and the other
       Credit Documents.

(E)    This  Mortgage is made  for the  benefit of  the Trustee to  secure the
       guaranty by the  Owner of (i) the  full and prompt payment  when due of
       (x) the principal of  and interest on the Notes issued, and Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect  to the Letters of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of the  Borrower  to the  Secured  Creditors (as  hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit Agreement and the other  Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by  the Borrower  with  all of  the terms,
       conditions and  agreements contained  in the Credit  Agreement and  the
       other Credit  Documents including,  without limitation, this  Mortgage;
       (ii) any and all sums advanced by the Trustee in order to preserve  the
       Collateral (as hereinafter  defined) or preserve its  security interest
       in  the Collateral;  (iii)  in  the event  of  any proceeding  for  the
       collection   or  enforcement  of   any  indebtedness,  obligations,  or
       liabilities of  the Borrower referred to in  clause (i) above, after an
       Event of Default  shall have occurred and be continuing, the reasonable
       expenses of  the Trustee of  re-taking, holding, preparing  for sale or
       lease,   selling  or  otherwise  disposing  of   or  realizing  on  the
       Collateral, or of any exercise by the  Trustee of its rights hereunder,
       together with reasonable  attorneys' fees of counsel to the Trustee and
       court costs; and  (iv) all amounts paid  by any Indemnitee as  to which
       such Indemnitee  has the right to reimbursement under Clause 13 of this
       Mortgage  (all   such  obligations,  liabilities,   sums  and  expenses
       referred  to  in  clauses (i)  through  (iv)  above being  collectively
       referred to as the "Obligations").  It is  acknowledged and agreed that
       the "Obligations"  shall  include extensions  of  credit of  the  types
       described above,  whether outstanding on  the date of  this Mortgage or
       extended from time to time after the date of this Mortgage. 

(F)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of the Banks agreeing  to make the Facility  available to
       the Borrower  and  as  a  condition  thereto and  for  other  good  and
       valuable consideration provided by the Banks (the  sufficiency of which
       the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage unless the  context otherwise requires, the  following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement; 

       "Bank" means  any lender  listed from time  to time on  Annex I  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the same meaning for such term as set forth  in
       the Credit Agreement;

       "Credit Agreement"  means the  Credit Agreement, dated  as of  November
       13, 1996,  among Holdings, the  Borrower, the Banks, the  Documentation
       Agents, and the Administrative Agent  first referred to in  Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents" shall have  the meaning for  such term as set  forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no Letters of  Credit remain outstanding  and the Loans and  the Unpaid
       Drawings together  with interest,  fees and  all other  obligations are
       paid in full;

       "Default  Rate"  shall   mean  the  rate  of  interest   calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or  authorization required  under  applicable Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance  or  violation,  investigations (other  than
       internal  reports  prepared  by Holdings  or  any  of its  Subsidiaries
       solely  in the  ordinary course  of such  Person's business and  not in
       response  to  any  third  party  action  or  request of  any  kind)  or
       proceedings  relating in any way to any Environmental Law or any permit
       issued,  or  any  approval given,  under  any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental  or  regulatory  authorities for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by   any   third   party   seeking    damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means (i)  any  release  of  Environmentally
       Sensitive  Material  from  the   Rig,  (ii)   any  incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and  which involves  collision between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or otherwise liable (in whole  or in part) or (iii) any  incident
       in  which Environmentally Sensitive Material is  released from a vessel
       other than the Rig and where the Rig is actually or potentially  liable
       to  be arrested  as a  result and/or  where  the Owner  is actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking,  leaching,  dumping, emitting,  escaping,  emptying,  seeping,
       placing  and  the like,  into or  upon  any land  or  water or  air, or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule  of common law now or hereafter  in effect and in each case as
       amended,  and  any judicial  or administrative  interpretation thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including, without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act, as amended, 33 U.S.C.  1251 et seq.;  the
       Toxic Substances Control Act,  15 U.S.C.  7401 et seq.;  the Clean Air
       Act, 42  U.S.C.  7401 et seq.; the  Safe Drinking Water Act, 42 U.S.C.
       3808  et seq.; the  Oil Pollution Act  of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall  have the same meaning  for such term as  set forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation, transformers  or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous waste,"  "restricted  hazardous waste,"  "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental  Law; and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect  of the Rig or otherwise by  the Owner (whether
       in the sole name of  the Owner or in the  joint names of the  Owner and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for  such term as  set
       forth in Section 1.09 of the Credit Agreement; 

       "Letter of Credit" shall  have the  same meaning for  such term as  set
       forth in Section 2.01(a) of the Credit Agreement;

       "Loan(s)" shall have the  same meaning  for such term  as set forth  in
       the Credit Agreement;

       "Major Casualty" means any casualty  to the Rig in respect  whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means  each  promissory note  of  the  Borrower referred  to  in
       Recital (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C. 
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       semi-submersible  drilling  rig  JACK  BATES   owned  by  the  Borrower
       documented under the laws  and flag of the United  States with Official
       Number  906283  of  19,928  gross  registered  tons  and    14,948  net
       registered tons; (ii)  the offshore drilling  rig W. D.  KENT owned  by
       the Owner documented under the laws and flag  of the United States with
       Official Number 583169  of 5,383 gross  registered tons  and 4,185  net
       registered tons; (iii)  the offshore drilling rig  CHARLEY GRAVES owned
       by Reading and  Bates Borneo Drilling  Co., Ltd.  documented under  the
       laws and flag of  the Republic of Panama with Patente Number 6618-76-CH
       of 5,829 gross registered tons and 1,748  net registered tons; (iv) the
       jack-up  drilling rig  RON TAPPMEYER owned  by Reading &  Bates (A) Pty
       Ltd. documented  under the  laws and  flag of  Australia with  Official
       Number 855213 of 11,455 gross  registered tons and 3,436 net registered
       tons; (v) the semi-submersible drilling rig  J. W. McLEAN owned by  the
       Borrower documented  under the laws and flag of  the Republic of Panama
       with Patente  Number 25384-PEXT  of  15,453 gross  registered tons  and
       4,636 net registered tons; (vi)  the semi-submersible drilling rig  RIG
       41 owned by  the Borrower  documented under the  laws and  flag of  the
       Republic of  Panama with the Patente Number to  be assigned on the date
       hereof of 10,078 gross registered  tons and 3,024 net  registered tons;
       (vii)  the  jack-up drilling  rig  HARVEY  H.  WARD owned  by  HRB  Rig
       Corporation documented under the laws and flag of  the United States of
       America with Official  Number 642693 of 4,121 gross registered tons and
       3,079 net  registered  tons; (viii)  the  jack-up  drilling rig  F.  G.
       McCLINTOCK  owned by Reading & Bates Offshore, Limited documented under
       the laws and flag of the United States  of America with Official Number
       562059 of  5,525 gross registered  tons and 1,657  net registered tons;
       (ix)  the jack-up  drilling  rig RANDOLPH  YOST  owned by  the Borrower
       documented under  the laws  and flag  of the  United States  of America
       with Official  Number 601699 of  4,701 gross registered  tons and 4,701
       net registered tons; (x) the jack-up drilling rig J. T. ANGEL owned  by 
       the Borrower documented under  the laws and  flag of the United  States
       of America with Official Number  651645 of 4,186 gross  registered tons
       and 3,090  net registered tons; (xi) the jack-up  drilling rig ROGER W.
       MOWELL owned by the Borrower documented under the laws and flag of  the
       United States of  America with Official  Number 645360  of 4,121  gross
       registered  tons  and 3,079  net  registered  tons;  (xii) the  jack-up
       drilling rig  GEORGE H.  GALLOWAY owned  by Reading  & Bates  Offshore,
       Limited  documented under  the laws and  flag of  the United  States of
       America with Official  Number 651646 of 3,729 gross registered tons and
       2,496 net registered  tons; and (xiii) the  jack-up drilling rig C.  E.
       THORNTON to  be owned by HRB Rig  Corporation documented under the laws
       and flag of the  United States of  America with Official Number  673210
       of 6,096 gross registered tons and 6,096 net registered tons;

       "Permitted  Liens" means:  (1) liens  incident  to expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than  thirty (30) days (or being contested in good faith, provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if  in excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a bond or  other security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due and  payable; (3)  liens for  taxes, assessments,  governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested  in good  faith, provided  such liens  are not  in  excess of
       U.S.$5,000,000.00,  and if  in excess  thereof, then  the Owner  shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or  other security satisfactory to the Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of  Clause 6 hereof (except  that no lien shall  be deemed
       not covered by insurance to  the extent insurance in force would  cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant  to any judgment  or to an  order of  attachment, distraint or
       similar legal  process arising  in connection  with legal  proceedings,
       but only  if and so long as the  execution or other enforcement thereof
       is not  unstayed for more  than 30 consecutive  days; (7) any lien  for
       the  payment  or discharge  of  which  provisions satisfactory  to  the
       Administrative Agent have been made as evidenced  by the Administrative
       Agent's written  consent to  such lien; (8)  any lien  in favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to the lien of this Mortgage or (ii) constitute  a maritime
       lien which would in any  event be entitled as such to priority over the
       Mortgage under  the United  States  shipping laws  or other  applicable
       laws relating to the  Rig's trading pattern.   Nothing herein shall  be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection  and indemnity  risks"  means the  usual  risks covered  by
       protection  and   indemnity   associations  of   international   repute
       including the  proportion not  recoverable in case  of collision  under
       the ordinary  running-down clause (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition Compensation"  means  all  moneys  or  other  compensation
       payable during the Credit  Facility Period by reason of requisition for
       title  or other  compulsory acquisition  of the  Rig otherwise  than by
       requisition for hire;

       "Rig"  means the vessel  described in Recital  (A) hereto  and includes
       any  share  or interest  therein  and  her  engines, machinery,  boats,
       tackle,  outfit,  spare  gear,   fuel,  consumable  or  other   stores,
       belongings and  appurtenances whether  on board  or ashore and  whether
       now owned  or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit  Issuer and the Administrative Agent under and as defined in the
       Credit Agreement;

       "Security Documents" shall have  the same meaning for such term  as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating),  pledge, lien, hypothecation, assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Subsidiary  Guaranty" means  the agreement  dated  as of  November 13,
       1996 made by the  Owner in favor of  the Administrative Agent as  first
       referred  to   in  Recital   (D)  hereto,   as  modified,  amended   or
       supplemented from time to time;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes" shall  have the same meaning for such  term as set forth in the
       Credit Agreement;

       "Total Commitment"  shall have the  same meaning  for such term  as set
       forth in the Credit Agreement;

       "Total Loss" means (a) the  actual, constructive, arranged, agreed,  or
       compromised Total  Loss of  the Rig; (b)  the requisition for  title or
       other  compulsory acquisition  or forfeiture of  the Rig otherwise than
       by requisition for  hire; (c)  the capture, seizure,  arrest, detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting  to act  on  behalf  of any  government  unless the  Rig  be
       released from such capture, seizure, arrest  or detention within ninety
       (90) days after the occurrence thereof; 

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing"  shall have  the same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard  form of  English marine  policy by  the free  of  capture and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are inserted  for convenience only and shall  not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to any Security Interest (except  for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has not  sold or  transferred, or  agreed  to sell  or
             transfer, title to the Rig or any share therein;

       (c)   the Owner  is a  corporation duly organized  and validly existing
             and in good standing under the laws of the State of Oklahoma; 

       (d)   the  Owner has full power  and authority (i)  to register the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig;

       (f)   the  Owner has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner  enforceable against the Owner in accordance with its terms
             (except  to   the  extent   limited  by  applicable   bankruptcy,
             reorganization, insolvency, moratorium  or other laws  of general
             application   relating  to   or  affecting   the  enforcement  of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's National  Vessel Documentation  Center in  Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect (i) any  law or regulation of any governmental  or
             official  authority or  body,  or (ii)  any  of the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is a  party or which is  binding upon the Owner  or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection   with  the  entry  into,  performance,  validity  and
             enforceability    of   this   Mortgage   and   the   transactions
             contemplated hereby  and thereby have  been obtained  and are  in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage,  it is not necessary  for the  legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that  it or  any document relating  thereto be registered, filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or  that any stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws  and all Environmental  Approvals relating  to the  Rig, its
             operation and management  and the business  of the Owner  (as now 
             conducted  and as reasonably anticipated  to be  conducted in the
             future) have been obtained or complied with;

       (k)   no Environmental  Claim has  been made or  threatened against the
             Owner, the Approved  Manager or otherwise in  connection with the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be expected  to result,  in an Environmental  Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall  survive the execution of this Mortgage and shall be deemed to be
       repeated at  the time of the making of each Loan and at the time of the
       issuance  of  each Letter  of Credit,  with  respect to  the  facts and
       circumstances  existing at  each  such time,  as if  made at  each such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto the Trustee, its successors  and assigns, the whole of the  Rig TO
       HAVE AND TO HOLD the  same unto the Trustee, its successors and assigns
       forever upon  the terms  herein set  forth for the  enforcement of  the
       Obligations.

       Provided only and  the condition of these presents is  such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been performed  in full  as  and when  the same  shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in the  Subsidiary Guaranty and this  Mortgage
       expressed or  implied to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then these  presents and the  rights hereunder  shall cease,  determine
       and be void otherwise  to be and remain  in full force and effect  and,
       in such event, the Trustee  agrees to execute and record at the expense
       of the  Owner, all such documents  as the Owner  may reasonably require
       to discharge this Mortgage.

       Notwithstanding  anything to  the contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that if  any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig and  none of the Secured  Creditors shall
       be under  any obligation of any  kind whatsoever in  respect thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)  to pay  and indemnify the Secured Creditors for all such expenses,
            claims, liabilities, losses, costs, duties, fees, charges or other
            moneys as  are stated in this Mortgage to  be payable by the Owner
            to or  recoverable from the Owner by  the Secured Creditors (or in
            respect of  which the Owner agrees  in this Mortgage  to indemnify
            any of  the Secured  Creditors) at  the times  and  in the  manner
            specified in this Mortgage;

       (b)  to pay interest on any such expenses, claims, liabilities, losses,
            costs,  duties,  fees,  charges or  other  moneys  referred to  in
            Clause 4.01(a)  from  the date  on  which demand  is  made by  any
            Secured Creditor for payment by the Owner of the relevant expense,
            claim, liability,  loss, cost,  duty, fee,  charge or other  money
            incurred by  a Secured Creditor for which the Owner is responsible
            (both before and after any relevant judgment) at the Default Rate;
            and

       (c)  to pay  and perform its obligations which may  be or become due or
            owing to a Secured Creditor under this Mortgage and the Subsidiary
            Guaranty  at  the times  and  in the  manner  specified herein  or
            therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)  the security created by this Mortgage shall be held by the Trustee
            as a continuing  security for the  performance of the  Obligations
            and that  the security so  created shall  not be satisfied  by any
            intermediate  payment  or   satisfaction  of   any  part  of   the
            Obligations;

       (b)  the security  so created shall be in addition  to and shall not in
            any way be  prejudiced or  affected by any  of the other  Security
            Documents;

       (c)  the Trustee shall not have to wait for the Administrative Agent to
            enforce  any of the other Security  Documents before enforcing the
            security created by this Mortgage;

       (d)  no delay or  omission on the part of the Trustee in exercising any
            right, power  or  remedy under  this  Mortgage shall  impair  such
            right,  power or remedy  or be construed  as a waiver  thereof nor
            shall any single or partial  exercise of any such right,  power or 
            remedy  preclude any further  exercise thereof or  the exercise of
            any other right, power or remedy.  The rights, powers and remedies
            provided in  this Mortgage are cumulative and not exclusive of any
            rights, powers and remedies provided  by law and may be  exercised
            from time to time and as often  as the Trustee may deem expedient;
            and

       (e)  any waiver by  the Trustee of  any terms of  this Mortgage or  any
            consent  given by the  Trustee under  this Mortgage shall  only be
            effective  if given in  writing and then only  for the purpose and
            upon the terms for which it is given.

5.02   Any settlement  or discharge  under this  Mortgage between  the Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being avoided or set-aside or ordered to be refunded  or reduced
       by  virtue  of  any  provision or  enactment  relating  to  bankruptcy,
       insolvency, administration  or liquidation for the  time being in force
       and, if such condition is  not satisfied, the Trustee shall be entitled
       to recover from the Owner on  demand the value of such security or  the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair,  affect or discharge  such rights and security,  in whole or
       in part, including without  limitation, and whether or not  known to or
       discoverable by the Secured Creditors or any other person:

       (a)  any time  or waiver  granted to  the Credit  Parties or  any other
            person; or

       (b)  the  taking,  variation,  compromise,  renewal  or release  of  or
            refusal or neglect to perfect  or enforce any rights, remedies  or
            securities against any of the Credit Parties or any other persons;
            or

       (c)  any   legal   limitation,   disability,   incapacity   or    other
            circumstances relating to the Credit Parties or  any other person;
            or

       (d)  any amendment  or supplement to the  Credit Agreement, any  of the
            other Credit Documents  (other than  this Mortgage)  or any  other
            document or security; or

       (e)  the  dissolution,  liquidation,  amalgamation,  reconstruction  or
            reorganization of any of the  Credit Parties or any other  person;
            or 

       (f)  the unenforceability, invalidity or frustration of any obligations
            of any of the Credit Parties or  any other person under the Credit
            Agreement, any  of the other  Security Documents (other  than this
            Mortgage) or any other document or security.

6.     INSURANCE

6.01   The  Owner covenants  with the  Trustee throughout  the Credit Facility
       Period that:

       (a)  The Owner  shall, at  its own  expense, when  and so  long as  any
            Obligation  remains  outstanding,  insure  the  Rig and  keep  her
            insured, or cause  the Rig to be  insured, in lawful money  of the
            United States, in such amounts, for such risks (including  without
            limitation,  hull and  machinery/increased  value, protection  and
            indemnity risks, pollution liability, and war risks), in such form
            (including without limitation, the form of the loss payable clause
            and the designation of named  assureds) and with such first  class
            insurance  companies,   underwriters,   funds,  mutual   insurance
            associations or clubs,  as shall be reasonably satisfactory to the
            Administrative  Agent.    With  respect  to  hull  and  machinery/
            increased value  insurance, including  war risk,  the Owner  shall
            insure  the  Rig and  keep her  insured,  or cause  the Rig  to be
            insured, for an amount which is at least the full commercial value
            of the Rig, and when such amount is aggregated with the  amount of
            such insurance coverage on  the Other Rigs, such  aggregate amount
            shall be at least 110%  of the Total Commitment.  The Rig shall in
            no event be  insured for an amount less  than the agreed valuation
            as set forth in the applicable marine and war risk policies.  Such
            insurance shall  cover marine  and war  risk perils,  on hull  and
            machinery,  with  deductibles not  in  excess of  US$500,000 (such
            deductibles not to  apply in the case  of Total Loss of  the Rig),
            and  shall be maintained  in the  broadest forms available  in the
            American, British and  Scandinavian insurance  markets or in  such
            other  major international  markets  reasonably acceptable  to the
            Administrative Agent.   The Owner shall  maintain, or cause  to be
            maintained,  protection  and  indemnity or  equivalent  insurance,
            including war risk protection and  indemnity coverage and coverage
            against  pollution  liability,   in  an   amount  not  less   than
            US$100,000,000 (or, with respect to pollution  liability coverage,
            such greater amount  as may be required  from time to time  by the
            Oil Pollution  Act 1990, or other Environmental Laws), as and when
            applicable to the Rig and  its operations, through underwriters or
            associations acceptable to the Administrative Agent.  In addition,
            the Owner shall, at its own expense, furnish to the Administrative
            Agent  a  mortgagee's  single interest  policy  providing coverage
            which, when  aggregated  with the  mortgagee's interest  insurance
            furnished  to the  Administrative Agent  in respect  of the  Other
            Rigs,  shall  be  in an  amount  equal  to at  least  110%  of the
            aggregate amount  of  the Total  Commitment (or  in  lieu of  such
            mortgagee's  interest  insurance Owner  shall  cause the  hull and
            machinery/increased  value  insurance  to be  endorsed  to  afford
            breach of warranty  coverage for the benefit of the Administrative
            Agent).  Such  mortgagee's interest  insurance and any  additional
            insurance policies  for the  benefit of  the Administrative  Agent
            shall  be  maintained  in  the  broadest  form  available  in  the
            American,  British   and  Scandinavian  markets  or   other  major
            international  markets  acceptable  to  the  Administrative  Agent
            through underwriters acceptable to the  Administrative Agent.  The
            Rig shall not operate in or proceed into any area then excluded by
            trading  warranties  under   its  marine  or  war   risk  policies
            (including  protection  and   indemnity)  without  obtaining   any
            necessary additional coverage, satisfactory in form and substance,
            and  evidence of which  shall be furnished,  to the Administrative
            Agent.

       (b)  The policy or policies of insurance shall be issued by responsible
            underwriters reasonably  acceptable to  the Administrative  Agent,
            shall  contain   conditions,  terms,  stipulations   and  insuring
            covenants satisfactory to  the Administrative Agent, and  shall be
            kept  in  full  force and  effect  by  the Owner  so  long  as any
            Obligations remain outstanding.   All  such policies, binders  and
            other interim insurance contracts shall be executed  and issued in
            the  name of the Owner  and shall, to  the extent required herein,
            provide  that loss  be  payable to  the  Administrative Agent  for
            distribution by  it to itself,  the Banks  and the Owner  as their
            interests  may appear, and  shall provide  for at least  ten days'
            prior  notice  to be  given  to the  Administrative  Agent by  the
            underwriters  or association in  the event of  cancellation or the
            failure of  the Owner  to  pay any  premium  or call  which  would
            suspend  coverage  under the  policy  or the  payment  of a  claim
            thereunder.   The Administrative  Agent and  the Trustee  shall be
            named as co-assureds on all such policies and insurance contracts,
            but without liability of  the Administrative Agent or the  Trustee
            for  premiums or calls.   Certified  copies of all  such policies,
            binders and other  interim insurance contracts shall  be deposited
            with  the Administrative Agent.  Originals  shall also be provided
            upon  the request of  the Administrative  Agent.  The  Owner shall
            furnish to  the Administrative  Agent annually  a detailed  report
            signed by a firm of  marine insurance brokers satisfactory to  the
            Administrative Agent as to the insurance maintained  in respect of
            the Rig, as to their opinion as to the adequacy  thereof and as to
            compliance with the provisions of this Clause 6.01.

            Unless otherwise required by the Administrative Agent by notice to
            the underwriters, although  the following insurance is  payable to
            the Administrative  Agent, (i) any loss under any insurance on the
            Rig  with respect to  protection and  indemnity risks may  be paid
            directly to the  Owner to  reimburse it  for any  loss, damage  or
            expense incurred  by it and  covered by such  insurance or  to the
            person to  whom any liability covered  by such insurance  has been
            incurred and  (ii) in  the case  of any  loss (other  than a  loss 
            covered  by (i) above or  by the next  following paragraph of this
            Clause 6.01(b))  under  any  insurance with  respect  to  the  Rig
            involving any damage to the Rig, the underwriters may pay directly
            for the repair, salvage or other charges involved or, if the Owner
            shall have  first fully repaired  the damage  or paid  all of  the
            salvage  or other  charges,  may pay  the  Owner as  reimbursement
            therefor; provided, however, that if such damage involves a before
            deductible loss in excess of  US$1,000,000, the underwriters shall
            not make such payment without first obtaining the  written consent
            thereto  of the Administrative  Agent (which consent  shall not be
            unreasonably withheld).   Any loss covered by this paragraph which
            is paid  to the  Administrative Agent  but which  might have  been
            paid,  in  accordance  with  the  provisions  of  this  paragraph,
            directly  to   the  Owner  or  others,   shall  be  paid   by  the
            Administrative Agent  to, or  as directed  by, the  Owner and  all
            other payments  to the Administrative  Agent of losses  covered by
            this paragraph shall  be applied  by the  Administrative Agent  in
            accordance with Clause 10.01.

            In  the  event of  an  actual  or  constructive  Total Loss  or  a
            compromised constructive Total  Loss or requisition of  title, all
            insurance payments therefor  shall be  paid to the  Administrative
            Agent.  The Owner shall not declare or agree with the underwriters
            that the  Rig is a constructive or compromised, agreed or arranged
            constructive Total Loss  without the prior written  consent of the
            Administrative Agent.

       (c)  In the  event of an actual or constructive  Total Loss of the Rig,
            the  Administrative  Agent  shall  retain  out  of  the  insurance
            payments received on  account of  such loss any  sum or sums  that
            shall  be  or become  owing  to the  Secured  Creditors under  the
            Security  Documents,  whether or  not  the same  be  then due  and
            payable, together with accrued interest  and the cost, if any,  of
            collecting  the insurance,  and  pay the  balance  as provided  in
            Clause 10.

       (d)  The Owner shall comply  with and satisfy all of the  provisions of
            any applicable law,  regulation, proclamation or order  concerning
            financial responsibility for  liabilities imposed on the  Owner or
            the Rig with respect to  the carriage of passengers or  pollution,
            and will  maintain, or cause to be maintained, all certificates or
            other evidence of financial  responsibility as may be required  by
            any such  law, regulation, proclamation  or order with  respect to
            the trade which the Rig from time to time is engaged in.

       (e)  The Owner  shall renew all insurances as they  expire and so as to
            insure that there is no  gap in coverage, keep the  Administrative
            Agent advised of the progress  of such renewals, and procure  that
            the   insurers   shall  promptly   confirm   in  writing   to  the
            Administrative Agent as and when each such renewal is effected. 

       (f)  The Owner shall punctually pay  all premiums, calls, contributions
            or  other  sums payable  in  respect of  all  such insurances  and
            produce   all   relevant  receipts   when   so  required   by  the
            Administrative Agent.

       (g)  The Owner  shall arrange for the  execution of such  guarantees as
            may from  time to time be required by any protection and indemnity
            or war risks association.

       (h)  The Owner  shall  not employ  the  Rig or  suffer  the Rig  to  be
            employed otherwise  than  in  conformity with  the  terms  of  the
            instruments of insurance aforesaid relative  to the Rig (including
            any  warranties,  express  or   implied,  therein)  without  first
            obtaining  the  consent of  the  insurers to  such  employment and
            complying with  such requirements as to extra premium or otherwise
            as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner covenants  with  the  Trustee  that  throughout  the  Credit
       Facility Period the Owner will:

       (a)  maintain its  existence as  a  corporation in  good standing  duly
            organized under the laws of the State of Oklahoma;

       (b)  keep the Rig documented in its name  as a United States vessel and
            to  do or allow to be  done nothing whereby such documentation may
            be forfeited or imperilled;

       (c)  not without the previous consent in writing of the Trustee, change
            the name  of the  Rig or make  any modification  to the  Rig which
            would or  might materially alter the  structure or type  or reduce
            the performance characteristics  of the  Rig or materially  reduce
            the value of the Rig;

       (d)  keep the  Rig in a good  and efficient state of  repair consistent
            with  the  ownership and  operating  practices of  first-class rig
            owners and operators so as  to maintain her present class  (namely
            +A1  Self-Elevating  Drilling  Unit)  at  the American  Bureau  of
            Shipping free of recommendations and  qualifications and change of
            class, save  those  notified to  and approved  in  writing by  the
            Trustee  and  so  as  to comply  with  all  laws,  regulations and
            requirements (statutory or otherwise) from time to time applicable
            to vessels documented under the laws and flag of the United States
            and applicable to vessels trading to any jurisdiction to which the
            Rig may,  subject to the provisions  of this Mortgage,  trade from
            time to time;

       (e)  procure that all repairs to or replacement of any damaged, worn or
            lost  parts  or equipment  be  effected in  such  manner (both  as
            regards workmanship and quality  of materials) as to not  diminish
            the  value of the Rig  and not to remove  any material part of, or
            item of equipment installed on, the Rig unless the part or item so
            removed is forthwith replaced by a  suitable part or item which is
            in the same condition as or better condition than the part or item
            removed, is free from any Security Interest (other than  Permitted
            Liens) in favor  of any person other than  the Trustee and becomes
            on installation on the Rig  the property of the Owner  and subject
            to the security constituted by this Mortgage;

       (f)  submit the  Rig  to such  periodical or  other surveys  as may  be
            required for classification  purposes and if so required to supply
            to the Trustee and the  Administrative Agent copies of all  survey
            reports issued in respect thereof;

       (g)  permit  the   representatives  of  the  Administrative   Agent  or
            independent surveyors representing the Trustee to board the Rig at
            all reasonable times and upon reasonable notice for the purpose of
            inspecting  her  condition  or  for   the  purpose  of  satisfying
            themselves in regard to proposed or executed repairs and to afford
            all proper facilities for such inspections;

       (h)  promptly  pay  and discharge  all  debts, damages  and liabilities
            whatsoever  which  have given  or  may give  rise  to maritime  or
            possessory  liens  (other  than  Permitted  Liens)  on  or  claims
            enforceable  against  the   Rig  and   all  tolls,  dues,   taxes,
            assessments, governmental  charges, fines  and penalties  lawfully
            charged  on or  in  respect of  the  Rig and  all other  outgoings
            whatsoever in respect of the Rig and in the event of arrest of the
            Rig pursuant to legal process, or in the event of her detention in
            exercise  or  purported exercise  of  any such  lien  or claim  as
            aforesaid, procure  the release  of the  Rig from  such arrest  or
            detention  forthwith upon  receiving notice  thereof  by providing
            bail or otherwise as the circumstances may require;

       (i)  not  employ  the Rig  or  allow  her employment  in  any trade  or
            business  which  is  unlawful  under  the  laws  of  any  relevant
            jurisdiction or  in carrying illicit or prohibited goods or in any
            manner  whatsoever  which may  render  her liable  to destruction,
            seizure  or confiscation and  in the  event of hostilities  in any
            part of the world (whether war be declared or not) not  employ the
            Rig or suffer her employment  in carrying any contraband goods  or
            to enter or trade to any zone which is declared  a war zone by any
            government  or by the  war risks insurers of  the Rig unless there
            shall  have  been effected  by  the Owner  (at  its expense)  such
            special,   additional   or  modified   insurance   cover   as  the
            Administrative Agent may require;

       (j)  promptly  furnish to the  Trustee all  such information as  it may
            from time  to  time require  regarding  the Rig,  her  employment,
            position and engagements, particulars of  all towages and salvages
            and,  upon the  request of the  Trustee in writing,  copies of all 
            charters  and  other  contracts for  her  employment  or otherwise
            howsoever concerning her;

       (k)  notify both the Trustee and the Administrative  Agent forthwith by
            telex or telecopy thereafter confirmed by letter of:

            (i)   any casualty to the Rig which is or is  likely to be a Major
                  Casualty, and

            (ii)  any  occurrence in consequence whereof the Rig has become or
                  is, by the passing of time or otherwise, likely to  become a
                  Total Loss, and

            (iii) any requirement  or recommendation  made by  any insurer  or
                  classification society  or by any competent  authority which
                  is not immediately complied with, and

            (iv)  any arrest  of the Rig or the exercise or purported exercise
                  of  any lien on  the Rig or  any requisition of  the Rig for
                  hire, and

            (v)   any intended  dry docking of the Rig,  as to which the Owner
                  shall give the Trustee ten (10) days prior notice, provided,
                  that in the event of any  emergency dry docking of the  Rig,
                  the Owner shall immediately notify the Trustee; and

            (vi)  any  intended deactivation or lay-up of  the Rig (other than
                  for normal periods  of inactivity between contracts  for the
                  Rig during which  periods the Rig remains manned) and obtain
                  the prior written consent of the Trustee;

       (l)  keep proper books of account in respect of the Rig and as and when
            the Trustee  or the Administrative Agent may so reasonably require
            make such  books available for inspection on behalf of the Trustee
            and furnish satisfactory  evidence that  the wages and  allotments
            and the insurance of the master  and crew are being regularly paid
            and that all deductions from crew's wages in respect of tax and/or
            social security  liability are  being properly  accounted for  and
            that the  master has no claim  for disbursements other  than those
            incurred by  him in the ordinary  course of trading  on the voyage
            then in progress;

       (m)  observe the  obligations  contained in  Sections 7  and  8 of  the
            Credit  Agreement which  apply to the  Rig and  the Owner,  and in
            pursuance thereof such  obligations shall  be incorporated in  and
            deemed to form part of this Mortgage mutatis mutandis;

       (n)  not without the previous consent  in writing of the Trustee  (such
            consent  not to be  unreasonably withheld),  put the Rig  into the
            possession of any  person for the purpose of  work being done upon
            her in  an amount exceeding or  likely to exceed  Two Million Five
            Hundred  Thousand United  States  Dollars  (US$2,500,000) (or  the
            equivalent  in any other currency)  unless such person shall first
            have given  to the Trustee and in terms reasonably satisfactory to
            it a  written undertaking not to exercise any  lien on the Rig for
            the cost of such work or otherwise;

       (o)  comply  with  and  satisfy all  the  requirements  and formalities
            established  by  the Ship  Mortgage  Act and  any  other pertinent
            legislation  of the United  States to  perfect this Mortgage  as a
            legal, valid and enforceable first and preferred lien upon the Rig
            and  promptly to  furnish to the  Trustee from  time to  time such
            proof as the Trustee may request for its satisfaction with respect
            to the Owner's compliance with the provisions of this sub-clause;

       (p)  place, and  use due diligence to retain, a properly certified copy
            of this  Mortgage on board the Rig with  her papers and cause such
            certified  copy of this  Mortgage to be  exhibited to any  and all
            persons having  business with the Rig which might give rise to any
            lien thereon other than a  lien for crew's wages, general  average
            and salvage and to any representative of the Trustee on demand and
            to place and keep prominently  displayed in the chart room and  in
            the master's cabin  of the Rig  a framed printed  notice in  plain
            type  in English of such size that the paragraph of reading matter
            shall cover a  space not less than 6 inches wide and 9 inches high
            reading as follows:


                              "NOTICE OF MORTGAGE

            This Rig is covered by  a First Preferred Mortgage to  CHRISTIANIA
            BANK OG  KREDITKASSE, NEW YORK BRANCH, as Security Trustee for the
            Banks defined in the said  Mortgage under authority of the  United
            States  Ship Mortgage  Act,  1920, as  amended,  recodified as  46
            U.S.C.   31301 et  seq.   Under the  terms of  the said  Mortgage
            neither the Owner nor any charterer nor the master of this Rig nor
            any other  person has  any right,  power or  authority to  create,
            incur or permit  to be imposed upon  this Rig any lien  whatsoever
            other than for crew's wages, general average and salvage."

       (q)  comply, or  procure compliance  with, all  Environmental Laws  and
            Environmental  Approvals  relating to  the  Rig, its  operation or
            management and the business of the Owner from time to time;

       (r)  notify the Trustee forthwith upon:

            (i)   any Environmental Claim which  could reasonably be  expected
                  to result in damages in  excess of US$200,000 being or  made
                  against the Owner, or otherwise  in connection with the Rig;
                  or 

            (ii)  any Environmental  Incident occurring, and keep  the Trustee
                  advised, in writing on such regular basis and in such detail
                  as the  Trustee shall  require, of  the Owner's  response to
                  such Environmental Claim or Environmental Incident;

       (s)  not sell, mortgage or transfer the Rig (other than as permitted by
            the Credit Agreement)  without the written consent  of the Trustee
            having first  been obtained, and any  such written consent  to any
            one such sale, mortgage or transfer shall not be construed to be a
            waiver of this  provision with respect to any  subsequent proposed
            sale, mortgage or transfer.   Any such sale, mortgage or  transfer
            shall be subject to  the provisions of this Mortgage  and the lien
            it creates.  The Owner shall not charter the Rig to, or permit the
            Rig to serve under any contract with, a person included within the
            definition of (i) "national" of a "designated foreign country," or
            "specially designated national" of a "designated foreign country,"
            in  the  Foreign Assets  Control Regulations  or the  Cuban Assets
            Control Regulations of  the United States Treasury  Department, 31
            C.F.R.  Parts   500  and  515,  in  each  case  as  amended,  (ii)
            "Government  of Libya",  "entity of  the Government  of  Libya" or
            "Libyan entity" in the Libyan  Sanctions Regulations of the United
            States  Treasury Department, 31  C.F.R. Part  550, as  amended, or
            (iii) "Government  of Iraq", "entity of the Government of Iraq" or
            "Iraqi Government entity"  in the Iraqi Sanctions  Regulations, 56
            Fed.  Reg. 2112 (1991)  to be codified  at 31 C.F.R.  Part 575, as
            amended, all  within the  meaning of  said Regulations  or of  any
            regulations, interpretations or rulings issued thereunder, or sail
            in Cuban waters or enter any Cuban port for any purpose  or engage
            in any transaction that violates any provision of said Regulations
            or  that  violates  any  provision  of  the  Iranian  Transactions
            Regulations,  31 C.F.R. Part  560, as  amended, the  Foreign Funds
            Control  Regulations,  31   C.F.R.  Part  520,  as   amended,  the
            Transaction Control Regulations,  31 C.F.R. Part 505,  as amended,
            the  Haitian  Transaction  Regulations,  31  C.F.R. Part  580,  as
            amended, the Foreign  Assets Control  Regulations, 31 C.F.R.  Part
            500, as  amended, or  Executive Orders  12810 and  12831; if  such
            transaction or  violation  would (i)  expose  the Trustee  to  any
            penalty, sanction  or investigation  or (ii)  jeopardize the  lien
            created by this Mortgage or  (iii) have a material adverse  effect
            on the Owner or the operation of the Rig;

       (t)  shall not  cause or permit  the Rig to  be operated in  any manner
            contrary  to law, shall  not abandon  the Rig  in a  foreign port,
            shall not engage in any unlawful trade or violate any law or carry
            any cargo  that shall  expose the  Rig to  penalty, forfeiture  or
            capture,  and  shall not  do,  or  suffer or  permit  to be  done,
            anything  which can or may  injuriously affect the registration or
            enrollment of the Rig under the laws of the United States and will
            at all times keep the Rig duly documented thereunder. 

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not  bound) at any time  and as often  as may be  necessary to take any
       such action as  it may  in the  reasonable exercise  of its  discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created  by this  Mortgage and  the other  Credit Documents (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)  if the  Owner does not comply  with the provisions  of Clause 6 or
            any of  them the Administrative Agent  shall be entitled  (but not
            bound)  to  effect  or  to replace  and  renew  and  thereafter to
            maintain the Insurances in such manner as in its discretion it may
            think fit  and to require that  all policies, contracts  and other
            records  relating  to  the Insurances  (including  details  of any
            correspondence  concerning   outstanding   claims)  be   forthwith
            delivered to such brokers as the Administrative Agent may nominate
            and to  collect, recover, compromise and give a good discharge for
            all  claims  then  outstanding  or  thereafter arising  under  the
            Insurances or  any  of them  and  to take  over  or institute  (if
            necessary  using the name  of the  Owner) all such  proceedings in
            connection therewith as  the Administrative Agent in  its absolute
            discretion may  think fit and to  permit the brokers  through whom
            the  collection  or  recovery  is  effected  to  charge  the usual
            brokerage therefor; and

       (b)  if the Owner does not comply with the provisions of Clause 7.01(d)
            and/or 7.01(f) or  any of them the Trustee shall  be entitled (but
            not bound) to  arrange for  the carrying  out of  such repairs  to
            and/or surveys of the Rig as it deems expedient or necessary; and

       (c)  if the Owner does not comply with the provisions of Clause 7.01(h)
            or any of  them the Trustee shall  be entitled (but not  bound) to
            pay and  discharge all such debts, damages and liabilities and all
            such tolls,  dues, taxes,  assessments, charges,  fines, penalties
            and other  outgoings as are therein  mentioned and/or to  take any
            such measures as it deems  expedient or necessary for the  purpose
            of securing the release of the Rig.

9.     ENFORCEABILITY AND TRUSTEE'S POWERS

9.01   Upon  the happening  of any of  the Events of  Default specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in  any jurisdiction to the effect that an Event of Default
       has  occurred (and whether prior to or  after the Required Banks having
       served on the Owner any  such notice as is referred to in Section  9 of
       the  Credit Agreement) the security  constituted by this Mortgage shall
       become immediately enforceable and  the Trustee  shall be entitled,  as
       and when  it may see fit, to put into force  and exercise all or any of
       the powers possessed by it as mortgagee of the Rig or  otherwise and in
       particular:

       (a)  to exercise  all  the  rights  and  remedies  in  foreclosure  and
            otherwise  given  to mortgagees  by  applicable law  including the
            provisions of the Ship Mortgage Act;

       (b)  to take  possession of the Rig whether  actually or constructively
            and/or otherwise to take  control of the Rig wherever the  Rig may
            be and cause  the Owner or any  other person in possession  of the
            Rig  forthwith upon demand  to surrender  the same to  the Trustee
            without legal process and without liability of the Trustee for any
            losses  or damages incurred  thereby and without  having to render
            accounts to the Owner in connection therewith;

       (c)  to require that all policies, contracts, certificates of entry and
            other records relating to the Insurances (including details of and
            correspondence  concerning   outstanding   claims)  be   forthwith
            delivered to or to the order of the Administrative Agent;

       (d)  to collect, recover, compromise and  give a good discharge for  or
            procure that the Administrative Agent collect, recover, compromise
            and  give good  discharge for  any and  all  moneys or  claims for
            moneys then outstanding or thereafter arising under the Insurances
            or any Requisition Compensation and to permit  any brokers through
            whom  collection or  recovery  is  effected  to charge  the  usual
            brokerage therefor;

       (e)  to  take over  or institute  (if necessary  using the name  of the
            Owner)  or, to the extent lawful,  procure that the Administrative
            Agent  take over or  institute all such  proceedings in connection
            with  the Rig, the Insurances,  or any Requisition Compensation as
            the  Trustee  in  its  absolute   discretion  thinks  fit  and  to
            discharge, compound,  release  or compromise  claims  against  the
            Owner in respect of the Rig which  have given or may give rise  to
            any charge or lien on  the Rig or which are or may  be enforceable
            by proceedings against the Rig;

       (f)  to sell the  Rig or any share therein with or without prior notice
            to the Owner free from any claim of or by the Owner  of any nature
            whatsoever, and with or without the benefit of any charterparty or
            other contract  for her employment,  by public auction  or private
            contract  at such place  and upon  such terms  (including, without
            limitation,  on terms  such that  payment  of some  or all  of the
            purchase  price be  deferred)  as  the  Trustee  in  its  absolute
            discretion may  determine with  power to postpone  any such  sale,
            without being answerable for any  loss occasioned by such sale  or
            resulting from postponement thereof, and/or itself to purchase the
            Rig at  any such public auction and to  set off the purchase price
            against all or any part of the Obligations;

       (g)  to  manage, insure, maintain  and repair  the Rig and  to charter,
            employ, sail or lay up the Rig in such manner, upon such terms and
            for such  period as the Trustee  in its absolute  discretion deems
            expedient  and for  the purposes  aforesaid  the Trustee  shall be
            entitled to do all acts and things incidental or conducive thereto
            and in particular  to enter into such  arrangements respecting the
            Rig,   and  the   insurance,   management,  maintenance,   repair,
            classification, chartering  and   employment  of the  Rig, in  all
            respects as if the Trustee were  the owner of the Rig and  without
            being responsible for any loss thereby incurred;

       (h)  to recover from the Owner  on demand any expenses, liabilities  or
            losses as may be incurred by the Trustee in or about  the exercise
            of the power vested in the Trustee under Clause 9.01(g);

       (i)  generally, to  recover from  the Owner  on demand  each and  every
            expense,  liability or loss incurred by the Trustee in or about or
            incidental to the exercise by it of any of the powers aforesaid.

9.02   The Trustee shall not  be obliged to make any enquiry  as to the nature
       or sufficiency of any payment  received by it under this Mortgage or to
       make any claim,  take any  action or  enforce any  rights and  benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors, nor their  agents, managers, officers,
       employees, delegates  and advisers  shall be  liable  for any  expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with  the exercise  or  purported exercise  of  any rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee  shall not by reason of the taking possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or be liable  for any loss upon realization or  for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon any  sale of  the Rig  or any  share therein  by  the Trustee  the
       purchaser  shall not be bound  to see  or enquire whether  the power of
       sale of the Trustee has arisen in the manner  provided in this Mortgage
       and the sale shall be deemed to be within  the power of the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge the purchaser who  shall not be concerned with  the manner of
       application of  the  proceeds of  sale  or  be in  any  way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  All moneys received by  the Trustee (or any other  Secured Creditor, as
       the case may be) in respect of sale of the Rig or  any part thereof, in
       respect of recovery under the Insurances  or in respect of  Requisition
       Compensation, shall be applied in the following manner:

       (i)    first,  to the payment  of all  amounts owing the  Trustee of the
              type described in clauses (ii) and (iii) of Recital E;

       (ii)   second,  to  the  extent  moneys  remain  after  the  application
              pursuant  to the  preceding clause  (i), an  amount equal  to the
              outstanding  Obligations shall  be paid to  the Secured Creditors
              as  provided  in  Clause 10.01(c),  with  each  Secured  Creditor
              receiving an amount equal to such Obligations  held by it or,  if
              the  proceeds   are  insufficient  to   pay  in   full  all  such
              Obligations, its Pro Rata Share (as defined  below) of the amount
              remaining to be distributed; and

       (iii)  third,   to  the  extent  moneys  remain  after  the  application
              pursuant  to the preceding  clauses (i)  and (ii),  and following
              the termination  of this  Mortgage pursuant to  Clause 3.01,  any
              surplus  then  remaining shall  be paid  to  the Owner,  subject,
              however, to the  rights of the  holder of any then  existing Lien
              of which the Trustee has actual notice (without investigation).

       (b)  For purposes  of this Mortgage "Pro  Rata Share" shall  mean, when
            calculating a Secured  Creditor's portion  of any distribution  or
            amount in respect of any  Obligations, the amount (expressed as  a
            percentage) equal to a fraction the numerator of which is the then
            unpaid amount of such Obligations owing to or held by such Secured
            Creditor  and  the denominator  of which  is the  then outstanding
            amount of all such Obligations.   For purposes of determining  the
            amount  payable to  each Secured  Creditor,  the Trustee  shall be
            entitled  to  request each  Secured  Creditor to  furnish  it with
            written notice of the  amount of Obligations  then owed to it  and
            shall be  entitled to  reply upon  the amounts  stated therein  in
            making such distribution.

       (c)  All payments  required to be  made to Secured  Creditors hereunder
            shall  be  made  to  the  Administrative Agent  under  the  Credit
            Agreement for the account of the Secured Creditors.

       (d)  For purposes of applying payments received in accordance with this
            Clause 10.01, the Trustee shall be entitled  to reply upon (i) the
            Administrative  Agent  under  the Credit  Agreement  and  (ii) the
            Secured Creditors  for a  determination (which  the Administrative
            Agent  and  each  Secured Creditor,  by  their  acceptance  of the
            benefits of  this  Mortgage shall  be  obligated to  provide  upon
            request of the Trustee) of the outstanding Obligations owed to the
            Secured Creditors.   Unless it has actual  knowledge (including by
            way of  written notice from a  Secured Creditor) to  the contrary,
            the Administrative Agent under the Credit Agreement, in furnishing
            information pursuant to  the preceding sentence, and  the Trustee,
            in  acting  hereunder,  shall  be   entitled  to  assume  that  no
            obligations other than principal,  interest and regularly accruing
            fees are owing to any Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The  Owner shall execute and do all such assurances, acts and things as
       the Trustee in its absolute discretion may require for:

       (a)  perfecting or protecting  the security created (or  intended to be
            created) by this Mortgage; or

       (b)  preserving or protecting any  of the rights of the Trustee and the
            other Secured Creditors under this Mortgage; or

       (c)  ensuring  that the security  constituted by this  Mortgage and the
            covenants and  obligations of the Owner under  this Mortgage shall
            enure to the benefit of  any transferee, successor or assignee  of
            the Trustee; or

       (d)  enforcing the security constituted by  this Mortgage on or at  any
            time after the same shall have become enforceable; or

       (e)  the exercise of any power,  authority or discretion vested in  the
            Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner, by  way of security and  in order more  fully to secure  the
       performance  of  the   Obligations,  hereby  irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:

       (a)  doing  in  its name  all  acts  and  executing,  signing  and  (if
            required) registering in  its name all  documents which the  Owner
            itself  could do, execute, sign or register in relation to the Rig
            (including  without limitation, transferring title to the Rig to a
            third  party), provided,  however, that  such power  shall  not be
            exercisable  by or on  behalf of  the Trustee until  this Mortgage
            shall have become immediately enforceable pursuant to Clause 9.01;
            and 

       (b)  executing,   signing,   perfecting,   doing  and   (if   required)
            registering every such further assurance document, act or thing as
            is referred to in Clause 11.

12.02  The exercise of  such power as is referred to  in Clause 12.01(a) by or
       on  behalf of the  Trustee shall  not put any  person dealing  with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor  shall such  person be in  any way  affected by  notice
       that this Mortgage has not become enforceable  and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)  in  the exercise or  purported exercise  of any rights,  powers or
            discretions vested in them pursuant to this Mortgage; or

       (b)  in the  preservation or enforcement of  the rights of  the Trustee
            under this Mortgage; or

       (c)  on the  release  of the  Rig  from the  security  created by  this
            Mortgage,

       and each of  the Secured Creditors and each such  agent or attorney may
       retain and pay all  sums in respect of the  same out of money  received
       under  the powers  conferred  by  this  Mortgage.    All  such  amounts
       recoverable by such Secured Creditors or  such agent or attorney  shall
       be recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred  by or asserted against them, or any of them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury  (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement  reached;  or (d)  any  violation  of laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig. 

13.03  If, under any applicable law  or regulation, and whether pursuant  to a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or  for  any other  reason,  any  payment  under  or in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than  the currency in which such payment  is due under or in connection
       with this  Mortgage (the  "contractual currency"),  then to the  extent
       that the amount of such  payment actually received by the Trustee, when
       converted into the contractual  currency at the rate of exchange, falls
       short  of the amount due under or in connection with this Mortgage, the
       Owner, as a  separate and independent obligation,  shall indemnify  and
       hold  harmless the Trustee against  the amount of  such shortfall.  For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which  the Trustee is able on the date of such payment (or, if it is
       not practicable  for the Trustee to  purchase the  contractual currency
       with the payment currency on the  date of such payment, at the  rate of
       exchange as  soon afterwards as  is practicable  for the Trustee  to do
       so) to purchase the  contractual currency with the payment currency and
       shall take into account  any premium and other  costs of exchange  with
       respect thereto.

14.    EXPENSES

14.01  The  Owner shall pay to any Secured  Creditor on demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)  the   negotiation,  preparation   and  execution  of   the  Credit
            Agreement, the Subsidiary  Guaranty and  the Credit Documents  (or
            any of them); and/or

       (b)  the  preserving or  enforcing  of, or  attempting  to preserve  or
            enforce,  any  of  its  rights  under the  Credit  Agreement,  the
            Subsidiary Guaranty or the Credit Documents (or any of them).

14.02  The  Owner shall  pay to  the Trustee  and the  Administrative Agent on
       demand  all costs, fees  and expenses (including,  but not  limited to,
       legal  fees and  expenses) and  Taxes thereon  incurred by  any Secured
       Creditor in connection with:

       (a)  any variation of, or amendment or supplement to,  any of the terms
            of the Credit  Agreement, the  Subsidiary Guaranty  or the  Credit
            Documents (or  any of them) requested  by the Owner,  necessary or
            advisable under applicable  law or relating to the  syndication of
            the Facility, or initiated during  the occurrence and continuation
            of an Event of Default; and/or 

       (b)  any consent or waiver required from the Trustee in relation to the
            Credit Agreement, the Subsidiary Guaranty and the Credit Documents
            (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty and the Credit  Documents (or any of  them) may be subject  or
       give  rise and shall  indemnify the  Trustee on demand  against any and
       all  liabilities with  respect  to  or  resulting  from  any  delay  or
       omission on the part of the Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to the Trustee  hereunder shall be in writing and  shall be
       made to the following address:

                   Christiania Bank og Kreditkasse, New York Branch
                   11 West 42nd Street
                   7th Floor
                   New York, New York  10036
                   Telefax:  (212) 827-4888
                   Attention:  Loan Administration

       All  other notices  shall  be made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This Mortgage shall be binding  upon and shall enure to the  benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors and  permitted assigns  and references  in this Mortgage  to
       any of them shall be construed accordingly.

16.02  The  Owner may  not assign or  transfer all or  any part  of its rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.04 of the  Credit Agreement, each  Bank has the
       right  to  assign or  transfer all  or any  part  of its  rights and/or
       obligations under the Credit Agreement  on the terms therein  provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this  Mortgage is  Three Hundred Million  U.S. Dollars (US$300,000,000)
       of  principal  plus  interest,  fees, commissions  and  performance  of
       mortgage  covenants.  The  interest of  the Owner in  the Rig  is 100%.
       The interest of the Trustee  in the Rig is 100%.   The date of maturity
       is  November 13,  2001, and  the discharge  amount is  the same  as the
       total amount plus such other sums  as shall be payable by the  Owner to
       the Banks under the Credit Agreement or the Subsidiary Guaranty.

18.    MISCELLANEOUS

18.01  If  at any time any one  or more of the  provisions in this Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the validity,  legality and  enforceability of  the
       remaining provisions of this Mortgage shall not be in any way  affected
       or impaired thereby.

18.02  The Trustee,  at any time and from time to  time, may delegate by power
       of attorney  or in any other manner to any person or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.   Any such delegation may be made  upon such terms and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in  any way liable or responsible  to the Owner for any  loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for in this Mortgage shall, in  the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The Owner agrees that the  Trustee shall have the liberty but shall not
       be obliged  to take any  proceedings in  the courts  of any country  to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose of  any proceedings for such enforcement  the Owner
       hereby submits to the jurisdiction of the courts of  any country of the
       choice of the Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place  the Rig shall be  found lying and for the  purpose of any action
       which the  Trustee may bring before the courts  of such jurisdiction or
       other judicial  authority and for the  purpose of any action  which the
       Trustee may bring against the Rig, any writ, notice,  judgment or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner agrees  that  should the  Trustee bring  a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in connection  with this Mortgage,  no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby consents generally in  respect of any legal action  or
       proceedings arising  out of or in connection with  this Mortgage to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made  or given in such
       action or proceedings.

IN WITNESS  whereof the Owner has caused this Mortgage to be executed the  day
and year first before written.

READING & BATES EXPLORATION CO.


By_____________________________________
    Name:  T.W. Nagle
    Title:  Vice President and Treasurer


                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle  to me  known who  being by  me duly  sworn did  depose and say  that he
resides  at 13307  Tosca Lane,  Houston,  TX; that  he is  Vice  President and
Treasurer for  READING & BATES EXPLORATION  CO., the corporation  described in
and  which executed  the foregoing  instrument;  and that  he signed  his name
thereto by order of the Board of Directors of READING & BATES EXPLORATION CO.


 
                                 ______________________
                                 Notary Public 

                                                                Exhibit 10.121


                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996

                         READING & BATES DRILLING CO.

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee

                                  JACK BATES


==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTERPAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . . . 9 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
      9     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS . . . . . . . .  19 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

      ACKNOWLEDGEMENT OF MORTGAGE 
      EXHIBIT 1 FORM OF CREDIT AGREEMENT

==============================================================================

THIS FIRST  PREFERRED MORTGAGE (this  "Mortgage") is made  on the 13th  day of
November, 1996

BY

(1)    READING  & BATES  DRILLING  CO.,  an  Oklahoma corporation  having  its
       principal offices at  901 Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"), 

IN FAVOR OF

(2)    CHRISTIANIA  BANK OG KREDITKASSE, NEW YORK  BRANCH, a Norwegian banking
       corporation  having its office  at 11  West 42nd Street,  New York, New
       York, as  security trustee for  the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner  is  the sole  owner  of the  whole of  the  semi-submersible
       drilling unit  JACK BATES documented  under the  laws and  flag of  the
       United States of  America with Official Number 906283  of 19,928  gross
       registered tons and 14,948 net registered tons (the "Rig").

(B)    By a  Credit Agreement  dated  as of  November 13,  1996 (as  modified,
       amended or  supplemented from  time to  time,  the "Credit  Agreement")
       among  (i)  Reading  &  Bates   Corporation,  a  Delaware  corporation,
       ("Holdings"),  (ii)  the  Owner, as  borrower,  (iii)  the banks  party
       thereto (the "Banks"),  (iv) Credit Lyonnais New York Branch and Banque
       Indosuez, as documentation agents (the  "Documentation Agents") and (v)
       the Trustee,  as administrative  agent, arranger  and security  trustee
       (in  such capacity,  the  "Administrative Agent")  (the  form of  which
       Credit  Agreement  together  with  Exhibit B  thereto  but  without the
       remaining attachments is attached hereto  as Exhibit 1), it  was agreed
       among other  things that  the Banks would  make available to  the Owner
       upon the  terms and conditions  therein described a reducing  revolving
       credit facility (the  "Facility") in an  aggregate amount  at any  time
       outstanding   of   Three   Hundred    Million   United States   Dollars
       (US$300,000,000),  providing for the making  of Loans  and the issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The  obligations  of  the  Owner  with  respect  to  the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the promissory  notes of the  Owner payable to  the order  of
       the respective Banks  (each a "Note" and collectively the "Notes") (the
       form of which is attached as Exhibit B to the Credit Agreement). 

(D)    This Mortgage is made for the benefit of the  Trustee to secure (i) the
       full and  prompt payment when due of (x)  the principal of and interest
       on the  Notes issued, and Loans  made, under the Credit  Agreement, and
       all  reimbursement obligations and Unpaid  Drawings with respect to the
       Letters of Credit issued  under the Credit Agreement and  (y) all other
       obligations    and   indebtedness    (including   without   limitation,
       indemnities, Fees and  interest thereon) of  the Owner  to the  Secured
       Creditors (as hereinafter  defined), whether now existing  or hereafter
       incurred  under,  arising out  of  or  in  connection  with the  Credit
       Agreement   and   the  other   Credit   Documents   including,  without
       limitation, this  Mortgage and  the due performance  and compliance  by
       the Owner  with all of  the terms, conditions  and agreements contained
       in the  Credit  Agreement and  the  other Credit  Documents  including,
       without limitation,  this Mortgage; (ii)  any and all  sums advanced by
       the Trustee  in  order  to  preserve  the  Collateral  (as  hereinafter
       defined) or preserve  its security interest in the Collateral; (iii) in
       the event  of any proceeding for  the collection or  enforcement of any
       indebtedness, obligations,  or liabilities of the  Owner referred to in
       clause (i) above, after  an Event of Default shall have occurred and be
       continuing,  the  reasonable  expenses of  the  Trustee  of  re-taking,
       holding, preparing  for sale or  lease, selling or otherwise  disposing
       of or realizing  on the Collateral, or  of any exercise by  the Trustee
       of its rights hereunder,  together with  reasonable attorneys' fees  of
       counsel to the  Trustee and court costs;  and (iv) all amounts  paid by
       any  Indemnitee  as  to  which   such  Indemnitee  has  the   right  to
       reimbursement under Clause 13  of this Mortgage (all such  obligations,
       liabilities, sums and  expenses referred to in clauses (i) through (iv)
       above being  collectively referred  to as  the "Obligations").   It  is
       acknowledged  and   agreed  that   the   "Obligations"  shall   include
       extensions of credit of the types  described above, whether outstanding
       on the date of  this Mortgage or extended from  time to time after  the
       date of this Mortgage.  

(E)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of  the Banks agreeing, at  the request of the  Owner, to
       make the Facility available to the Owner under  the terms of the Credit
       Agreement and  as a condition  thereto and for other  good and valuable
       consideration  provided  by the  Banks  (the sufficiency  of  which the
       Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this  Mortgage unless the context  otherwise requires, the following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank" means any  lender listed from  time to  time on Annex  I to  the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the same meaning for such  term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the  Credit Agreement,  dated as of  November
       13, 1996,  among  Holdings, the  Owner,  the Banks,  the  Documentation
       Agents and  the Administrative Agent  first referred to  in Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents"  shall have the meaning  for such term as  set forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no Letters  of Credit remain outstanding  and the Loans and  the Unpaid
       Drawings, together with interest,  fees and  all other obligations  are
       paid in full;

       "Default  Rate"  shall  mean   the  rate  of  interest  calculated   in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal reports  prepared  by  Holdings  or any  of  its  Subsidiaries
       solely in  the ordinary course  of such  Person's business  and not  in
       response  to  any third  party  action  or  request  of  any  kind)  or
       proceedings relating in any way to any  Environmental Law or any permit
       issued,  or  any  approval  given,  under any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by    any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release of  Environmentally
       Sensitive  Material   from  the  Rig,  (ii)   any  incident   in  which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than  the Rig and  which involves  collision between  the Rig  and such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which Environmentally  Sensitive Material is released from  a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing  and the  like, into  or  upon any  land  or water  or air,  or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule of common  law now or hereafter in effect  and in each case as
       amended,  and any  judicial  or administrative  interpretation thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including,  without limitation,  CERCLA; RCRA;  the Federal
       Water Pollution Control Act,  as amended, 33 U.S.C.  1251 et seq.; the
       Toxic Substances  Control Act, 15 U.S.C.  7401  et seq.; the Clean Air
       Act, 42 U.S.C.   7401 et seq.; the Safe Drinking  Water Act, 42 U.S.C.
       3808 et seq.;  the Oil Pollution  Act of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall have the  same meaning for such  term as set forth  in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation,  transformers  or other
       equipment   that  contained,   electric  fluid   containing  levels  of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous  waste," "restricted  hazardous  waste," "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental Law;  and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into  in respect of the Rig or  otherwise by the Owner (whether
       in the sole name of  the Owner or in  the joint names of the Owner  and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for  such term  as set
       forth in Section 1.09 of the Credit Agreement;

       "Letter  of Credit" shall  have the same meaning  for such  term as set
       forth in Section 2.01(a) of the Credit Agreement; 

       "Loan(s)"  shall have the  same meaning for such  term as  set forth in
       the Credit Agreement;

       "Major Casualty" means any  casualty to the Rig in respect  whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency; 

       "Note" means each promissory  note of the Owner referred  to in Recital
       (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (D) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C.
       2701 et seq.), as amended;

       "Other Rigs"  means,  individually or  collectively,  each of  (i)  the
       jack-up  drilling  rig  D.  R.   STEWART  owned  by  Reading   &  Bates
       Exploration Co. ("R&B  Exploration") documented under the laws and flag
       of  the  United States  with  Official  Number  626904  of 6,494  gross
       registered  tons  and  5,834 net  registered  tons;  (ii) the  offshore
       drilling rig  W. D. KENT owned by R&B  Exploration documented under the
       laws  and flag  of the  United States  with Official  Number 583169  of
       5,383 gross  registered tons and  4,185 net registered  tons; (iii) the
       offshore drilling rig  CHARLEY GRAVES owned by Reading and Bates Borneo
       Drilling Co., Ltd. documented under  the laws and flag of  the Republic
       of Panama  with Patente  Number  6618-76-CH of  5,829 gross  registered
       tons and 1,748 net  registered tons; (iv) the jack-up drilling  rig RON
       TAPPMEYER owned by  Reading & Bates (A)  Pty Ltd. documented under  the
       laws and flag  of Australia with Official Number 855213 of 11,455 gross
       registered  tons   and  3,436  net  registered   tons;  (v)  the  semi-
       submersible drilling rig  J. W. McLEAN  owned by  the Owner  documented
       under the  laws and flag of the Republic  of Panama with Patente Number
       25384-PEXT of  15,453 gross  registered tons  and 4,636 net  registered
       tons; (vi) the semi-submersible drilling rig RIG 41 owned  by the Owner
       documented under  the laws and flag of the  Republic of Panama with the
       Patente  Number to  be  assigned on  the  date hereof  of 10,078  gross
       registered  tons  and 3,024  net  registered  tons; (vii)  the  jack-up
       drilling rig HARVEY  H. WARD owned  by HRB  Rig Corporation  documented
       under the laws and  flag of the United States of  America with Official
       Number 642693 of 4,121 gross  registered tons and 3,079  net registered
       tons;  (viii)  the jack-up  drilling  rig  F.  G.  McCLINTOCK owned  by
       Reading &  Bates Offshore, Limited  documented under the  laws and flag
       of the United States  of America with Official  Number 562059 of  5,525
       gross registered tons and 1,657  net registered tons; (ix)  the jack-up
       drilling rig  RANDOLPH YOST  owned by  the Owner  documented under  the
       laws and  flag of  the United  States of  America with  Official Number
       601699 of  4,701 gross registered  tons and 4,701  net registered tons;
       (x) the jack-up drilling rig J. T. ANGEL  owned by the Owner documented
       under the laws and flag of  the United States of America with  Official
       Number 651645 of 4,186 gross  registered tons and 3,090  net registered
       tons; (xi) the jack-up drilling rig ROGER W.  MOWELL owned by the Owner
       documented under the  laws and  flag of  the United  States of  America
       with Official  Number 645360 of  4,121 gross registered  tons and 3,079
       net registered tons;  (xii) the jack-up drilling rig GEORGE H. GALLOWAY
       owned by  Reading & Bates  Offshore, Limited documented  under the laws
       and  flag of the  United States of America  with Official Number 651646
       of  3,729 gross  registered  tons and  2,496  net registered  tons; and
       (xiii) the jack-up drilling  rig C. E. THORNTON to be owned  by HRB Rig
       Corporation documented under the  laws and flag of the United States of
       America with Official  Number 673210 of 6,096 gross registered tons and
       6,096 net registered tons;

       "Permitted Liens"  means: (1)  liens  incident to  expenses of  current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being  contested in good faith, provided
       such liens  are not  in excess of  U.S.$5,000,000.00, and if  in excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a  bond or other security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable;  (3) liens  for taxes,  assessments, governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested  in good  faith,  provided such  liens are  not in  excess of
       U.S.$5,000,000.00,  and if  in excess  thereof, then  the Owner  shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security satisfactory to the Administrative Agent); (4)  liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause  6 hereof (except  that no lien shall  be deemed
       not covered by insurance to  the extent insurance in force  would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant  to any  judgment or to  an order of  attachment, distraint or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the payment  or  discharge  of which  provisions  satisfactory  to  the
       Administrative Agent have been made as  evidenced by the Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to the lien  of this Mortgage or (ii) constitute a maritime
       lien which would in any event be entitled as such to priority over  the
       Mortgage  under the  United  States shipping  laws or  other applicable
       laws relating  to the Rig's  trading pattern.  Nothing  herein shall be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection and  indemnity  risks" means  the  usual risks  covered  by
       protection   and   indemnity  associations   of   international  repute
       including  the proportion  not recoverable in  case of  collision under
       the ordinary running-down clause (unless such  is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means the  vessel described in  Recital (A)  hereto and  includes
       any  share  or interest  therein  and  her engines,  machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and appurtenances  whether on  board or  ashore and  whether
       now owned  or hereafter acquired  (but excluding  therefrom any  leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit Issuer and the  Administrative Agent under and as defined in the
       Credit Agreement;

       "Security Documents"  shall have the same meaning  for such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating),  pledge, lien, hypothecation, assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes" shall have the same meaning  for such term as set forth  in the
       Credit Agreement;

       "Total Commitment" shall  have the same  meaning for such  term as  set
       forth in the Credit Agreement;

       "Total  Loss" means (a) the  actual, constructive, arranged, agreed, or
       compromised Total Loss  of the Rig;  (b) the  requisition for title  or
       other compulsory  acquisition or forfeiture of  the Rig  otherwise than
       by requisition  for hire; (c)  the capture, seizure, arrest,  detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting to  act  on  behalf of  any  government  unless the  Rig  be
       released from  such capture, seizure, arrest or detention within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid Drawing"  shall have  the same  meaning  for such  term as  set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard  form of  English  marine policy  by the  free of  capture and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause  headings are inserted for convenience  only and shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,  words   denoting  the
             singular number shall include the plural and vice versa; 

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to  any Security Interest (except for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has not  sold  or transferred,  or agreed  to sell  or
             transfer, title to the Rig or any share therein; 

       (c)   the Owner  is a corporation  duly organized and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the Owner has full  power and authority  (i) to register the  Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig; 

       (f)   the  Owner has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner  enforceable against the Owner in accordance with its terms
             (except  to  the   extent  limited   by  applicable   bankruptcy,
             reorganization, insolvency,  moratorium or other laws  of general
             application   relating  to  or   affecting  the   enforcement  of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast Guard's  National  Vessel Documentation  Center in  Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect (i)  any law or regulation of any  governmental or
             official authority  or  body, or  (ii)  any of  the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is a  party or which is  binding upon the Owner  or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection  with   the  entry  into,  performance,  validity  and
             enforceability   of   this   Mortgage    and   the   transactions
             contemplated hereby  and thereby  have been obtained  and are  in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage,  it is not  necessary for the legality,  validity,
             enforceability  or  admissibility in  evidence  of this  Mortgage
             that it or  any document  relating thereto be  registered, filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or that any  stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws  and all  Environmental Approvals relating  to the  Rig, its
             operation and management  and the business  of the Owner  (as now
             conducted  and as  reasonably anticipated to  be conducted in the
             future) have been obtained or complied with;

       (k)   no Environmental Claim  has been made or  threatened against  the
             Owner, the Approved  Manager or otherwise in connection  with the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be  expected to result,  in an Environmental Claim  in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall survive the execution of this Mortgage and shall  be deemed to be
       repeated at the time of the making  of each Loan and at the time of the
       issuance  of  each Letter  of  Credit, with  respect  to the  facts and
       circumstances  existing at  each such  time, as  if made  at  each such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto  the Trustee, its successors and assigns,  the whole of the Rig TO
       HAVE  AND TO HOLD the same unto the Trustee, its successors and assigns
       forever upon the  terms herein  set forth  for the  enforcement of  the
       Obligations. 

       Provided only and  the condition of these presents is  such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been performed  in full  as  and when  the same  shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in the  Subsidiary Guaranty and this  Mortgage
       expressed or implied  to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then these  presents and the  rights hereunder  shall cease,  determine
       and be void  otherwise to be and remain  in full force and  effect and,
       in  such event, the indenture  Trustee agrees to  execute and record at
       the  expense of  the  Owner,  all  such  documents  as  the  Owner  may
       reasonably require to discharge this Mortgage.  
       Notwithstanding anything  to the  contrary herein  it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of  this Mortgage  and that  if  any provision  or part  thereof herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig  and none of the Secured  Creditors shall
       be  under any obligation of  any kind whatsoever  in respect thereof or
       be under any liability whatsoever  in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors  for   all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or  other moneys  as are  stated in  this Mortgage  to be
             payable  by the Owner  to or  recoverable from  the Owner  by the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to  indemnify any of  the Secured Creditors  at the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other moneys  referred to
             in Clause 4.01(a) from the  date on which demand  is made by  any
             Secured Creditor as the case  may be, for payment by the Owner of
             the  relevant expense,  claim, liability, loss,  cost, duty, fee,
             charge or other money  incurred by any Secured Creditor for which
             the  Owner is  responsible  (both before  and after  any relevant
             judgment) at the Default Rate; and

       (c)   to pay and perform its  obligations which may be or become due or
             owing to any Secured Creditor under  this Mortgage and the  other
             Credit Documents  to which the  Owner is or  is to be  a party at
             the times and in the manner specified herein or therein. 

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as a  continuing  security for  the  performance of  the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the security so created shall be in addition to  and shall not in
             any  way be prejudiced or  affected by any  of the other Security
             Documents;

       (c)   the Trustee shall not  have to wait for the Administrative Agent,
             the Banks or the  Letter of Credit Issuer  to enforce any of  the
             other  Security Documents  before enforcing  the security created
             by this Mortgage;

       (d)   no delay  or omission on  the part of  the Trustee in  exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or  remedy or be  construed as a waiver  thereof nor
             shall any  single or partial exercise of any such right, power or
             remedy preclude any further exercise  thereof or the exercise  of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given  in writing and then only  for the purpose and
             upon the terms for which it is given.

5.02   Any settlement or  discharge under  this Mortgage  between the  Trustee
       and the Owner  shall be conditional upon no security  or payment to the
       Secured  Creditors or  any of them  by the Credit  Parties or any other
       person  being avoided or set-aside or ordered to be refunded or reduced
       by  virtue  of  any  provision  or enactment  relating  to  bankruptcy,
       insolvency, administration or  liquidation for the time  being in force
       and, if such condition is not satisfied,  the Trustee shall be entitled
       to recover from the  Owner on demand the value of such  security or the
       amount of any such payment  as if such settlement or discharge  had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair, affect or  discharge such rights  and security, in whole  or
       in part, including without limitation, and  whether or not known to  or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person: 

       (a)   any time or  waiver granted to  the Credit  Parties or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities against  any  of  the  Credit  Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents (other  than this  Mortgage) or any  other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or   frustration   of  any
             obligations  of any  of the  Credit Parties  or any  other person
             under  the Credit Agreement,  any of  the other  Credit Documents
             (other than this Mortgage) or any other document or security.

5.04   Until the Obligations have been satisfied  in full to the  satisfaction
       of  the Trustee,  the Owner  shall not  by virtue  of any  payment made
       hereunder  on  account  of  the  Obligations   or  by  virtue  of   any
       enforcement  by  the  Trustee of  its  rights  under,  or  the security
       constituted  by,  this  Mortgage  or  by  virtue  of  any  relationship
       between,  or  transaction involving,  the Owner  and  Holdings (whether
       such  relationship or transaction shall constitute the Owner a creditor
       of Holdings,  a guarantor  of the  obligations of  Holdings or  a party
       subrogated  to  the rights  of  others  against Holdings  or  otherwise
       howsoever and whether or  not such relationship or transaction shall be
       related  to,  or  in  connection  with,  the  subject  matter  of  this
       Mortgage):

       (a)   exercise any  rights of  subrogation in  relation to any  rights,
             security or moneys held  or received or receivable by the Secured
             Creditors or any other person; or

       (b)   be  entitled  to exercise  any  right  of contribution  from  any
             co-surety liable in respect of such moneys  and liabilities under
             any other guaranty, security or agreement; or

       (c)   exercise  any right  of set-off or  counterclaim against Holdings
             or any such co-surety; or

       (d)   receive,  claim or have the benefit of any payment, distribution,
             security or indemnity from Holdings or any such co-surety; or 

       (e)   unless so directed by the  Trustee (when the Owner will  prove in
             accordance  with  such  directions),  claim  as   a  creditor  of
             Holdings or any such co-surety in competition with the Trustee.

       The  Owner shall  hold in  trust for the  Trustee and  forthwith pay or
       transfer (as  appropriate) to the Trustee  any such  payment (including
       an amount equal to any such  set-off), distribution or benefit of  such
       security, indemnity or claim in fact received by it.

5.05   The Owner  unconditionally  and irrevocably  agrees  that if  any  sums
       hereby secured are not recoverable on the basis of a guaranty  (whether
       by reason of legal limitation, illegality,  disability or incapacity on
       or of  Holdings or the Owner  or any other person  or by reason  of any
       other  fact  or   circumstance,  and  whether   or  not  known   to  or
       discoverable by the Owner,  Holdings, the Trustee or any other person),
       then the  Owner will, as a separate  and independent stipulation and as
       a primary obligor, pay  to the Trustee on  demand an amount or  amounts
       equal  to the amount or amounts which  the Owner would have been liable
       to pay  but for such irrecoverability and will  on demand indemnify the
       Trustee against  any loss  or  liability suffered  or  incurred by  the
       Secured Creditors or any of them as a result of such irrecoverability.

6.     INSURANCE

6.01   The Owner  covenants with  the Trustee  throughout the Credit  Facility
       Period that:

       (a)   The Owner  shall, at its  own expense,  when and  so long as  any
             Obligations  remain  outstanding, insure  the  Rig  and keep  her
             insured,  or cause the Rig to be  insured, in lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and  indemnity  risks, pollution  liability,  and war
             risks), in such form  (including without limitation, the  form of
             the loss payable  clause and the designation  of named  assureds)
             and  with  such first  class  insurance companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect   to  hull   and  machinery/increased   value  insurance,
             including war risk, the Owner shall  insure the Rig and keep  her
             insured, or cause the Rig  to be insured, for an amount  which is
             at least  the full  commercial value  of the Rig,  and when  such
             amount is aggregated with  the amount of such  insurance coverage
             on the Other  Rigs, such aggregate amount shall  be at least 110%
             of the Total Commitment.   The Rig shall  in no event be  insured
             for  an amount less than the agreed valuation as set forth in the
             applicable marine and war  risk policies.   Such insurance  shall
             cover  marine and war  risk perils, on  hull and  machinery, with
             deductibles not in excess of US$500,000  (such deductibles not to
             apply  in  the case  of  Total Loss  of  the Rig),  and  shall be
             maintained  in  the broadest  forms  available  in the  American,
             British  and  Scandinavian insurance  markets  or  in such  other
             major   international  markets   reasonably  acceptable   to  the
             Administrative Agent.  The Owner shall  maintain, or cause to  be
             maintained,  protection and  indemnity  or equivalent  insurance,
             including  war  risk   protection  and  indemnity   coverage  and
             coverage against pollution  liability, in an amount not less than
             US$100,000,000   (or,  with   respect   to  pollution   liability
             coverage,  such greater amount  as may be  required from  time to
             time by  the  Oil  Pollution  Act 1990,  or  other  Environmental
             Laws),  as and  when applicable  to the  Rig and  its operations,
             through   underwriters   or   associations  acceptable   to   the
             Administrative Agent.  In addition, the  Owner shall, at its  own
             expense,  furnish  to  the  Administrative  Agent  a  mortgagee's
             single interest policy  providing coverage which, when aggregated
             with   the  mortgagee's  interest   insurance  furnished  to  the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an amount equal to at  least 110% of the aggregate amount  of the
             Total  Commitment  (or  in  lieu  of  such  mortgagee's  interest
             insurance  Owner shall  cause  the  hull and  machinery/increased
             value  insurance  to be  endorsed  to afford  breach  of warranty
             coverage  for the  benefit of  the Administrative  Agent).   Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies  for the benefit  of the  Administrative Agent  shall be
             maintained  in  the  broadest  form available  in  the  American,
             British  and Scandinavian  markets or  other major  international
             markets   acceptable   to   the  Administrative   Agent   through
             underwriters  acceptable to  the Administrative  Agent.   The Rig
             shall not operate  in or proceed into  any area then  excluded by
             trading  warranties  under  its  marine  or   war  risk  policies
             (including   protection  and  indemnity)  without  obtaining  any
             necessary   additional  coverage,   satisfactory   in  form   and
             substance,  and  evidence of  which  shall be  furnished,  to the
             Administrative Agent. 

       (b)   The  policy  or  policies   of  insurance  shall  be   issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and  insuring   covenants   satisfactory  to   the
             Administrative Agent, and shall  be kept in full force and effect
             by  the Owner so long as any Obligations remain outstanding.  All
             such policies,  binders  and  other interim  insurance  contracts
             shall be executed and issued in the name of  the Owner and shall,
             to the extent  required herein, provide  that loss be  payable to
             the  Administrative Agent for distribution  by it  to itself, the
             Banks  and the  Owner as  their interests  may appear,  and shall
             provide for at least  ten days' prior notice  to be given to  the
             Administrative  Agent by  the underwriters or  association in the
             event of  cancellation or  the failure  of the Owner  to pay  any
             premium or call which  would suspend coverage under the policy or
             the payment of a  claim thereunder.  The Administrative Agent and
             the Trustee shall  be named as  co-assureds on all  such policies
             and   insurance   contracts,  but   without   liability   of  the
             Administrative  Agent  or  the  Trustee for  premiums  or  calls.
             Certified copies of all  such policies, binders and other interim
             insurance contracts shall  be deposited  with the  Administrative
             Agent.  Originals shall also be provided upon the request of  the
             Administrative   Agent.     The  Owner   shall  furnish   to  the
             Administrative Agent annually  a detailed report signed by a firm
             of marine  insurance brokers satisfactory  to the  Administrative
             Agent as to  the insurance maintained in  respect of the Rig,  as
             to their opinion as to the adequacy thereof and as  to compliance
             with the provisions of this Clause 6.01.

             Unless otherwise required by  the Administrative Agent by  notice
             to the underwriters, although the following  insurance is payable
             to the Administrative Agent,  (i) any loss under any insurance on
             the  Rig with respect  to protection and  indemnity risks  may be
             paid directly to the Owner  to reimburse it for any  loss, damage
             or expense  incurred by it  and covered by  such insurance  or to
             the person to  whom any liability  covered by such  insurance has
             been incurred  and (ii) in  the case  of any  loss (other than  a
             loss covered  by (i) above or by  the next following paragraph of
             this Clause 6.01(b)) under  any insurance with respect to the Rig
             involving  any  damage  to  the  Rig, the  underwriters  may  pay
             directly for the repair,  salvage or  other charges involved  or,
             if the Owner shall  have first fully repaired the damage  or paid
             all  of  the  salvage or  other  charges,  may pay  the  Owner as
             reimbursement  therefor; provided, however,  that if  such damage
             involves a before deductible loss in excess of US$1,000,000,  the
             underwriters shall not make such payment  without first obtaining
             the  written consent  thereto of the  Administrative Agent (which
             consent shall  not be unreasonably  withheld).  Any loss  covered
             by this paragraph which is paid  to the Administrative Agent  but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the  Administrative Agent to, or as directed by, the Owner and
             all other payments to  the Administrative Agent of losses covered
             by this  paragraph shall be  applied by the Administrative  Agent
             in accordance with Clause 10.01.

             In  the  event of  an  actual  or constructive  Total  Loss  or a
             compromised constructive Total Loss or requisition  of title, all
             insurance payments therefor shall  be paid to the  Administrative
             Agent.    The  Owner  shall  not   declare  or  agree  with   the
             underwriters  that  the Rig  is  a  constructive or  compromised,
             agreed  or  arranged constructive  Total Loss  without  the prior
             written consent of the Administrative Agent.

       (c)   In the event of an actual or constructive Total  Loss of the Rig,
             the  Administrative  Agent  shall  retain out  of  the  insurance
             payments received  on account of  such loss any sum  or sums that
             shall be  or become  owing  to the  Secured  Creditors under  the
             Security Documents,  whether or  not  the same  be  then due  and
             payable, together with accrued  interest and the cost, if any, of
             collecting  the insurance,  and pay  the balance  as  provided in
             Clause 10. 

       (d)   The Owner  shall comply with and satisfy all of the provisions of
             any applicable law, regulation, proclamation or  order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will maintain,  or cause  to be maintained,  all certificates
             or other  evidence of financial responsibility as may be required
             by  any such law, regulation, proclamation  or order with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The Owner shall renew all insurances as they expire  and so as to
             insure that there is  no gap in coverage, keep the Administrative
             Agent advised of the  progress of such renewals, and procure that
             the   insurers  shall   promptly  confirm   in  writing   to  the
             Administrative Agent as and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or  other sums  payable  in  respect of  all  such
             insurances and produce all relevant receipts when so  required by
             the Administrative Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner  shall not  employ the  Rig or  suffer  the Rig  to be
             employed  otherwise than  in  conformity with  the  terms of  the
             instruments   of  insurance   aforesaid   relative  to   the  Rig
             (including any  warranties, express or implied,  therein) without
             first obtaining  the consent of the  insurers to  such employment
             and complying  with  such requirements  as  to extra  premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The Owner  covenants  with  the  Trustee  that  throughout  the  Credit
       Facility Period the Owner will:

       (a)   maintain its existence  as a  corporation in  good standing  duly
             organized under the laws of the State of Oklahoma;

       (b)   keep the Rig  documented in its  name as  a United States  vessel
             and to do or  allow to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig  in a good and efficient  state of repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  M Column  Stabilized Drilling  Unit Ice  Strengthening Class
             IC)  at the  American Bureau of  Shipping free of recommendations
             and qualifications and  change of  class, save those  notified to
             and approved in  writing by the Trustee and so  as to comply with
             all laws,  regulations and requirements (statutory  or otherwise)
             from  time to  time applicable  to vessels  documented under  the
             laws  and flag  of the  United States  and applicable  to vessels
             trading to any jurisdiction to which the Rig may,  subject to the
             provisions of this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost  parts or equipment be  effected in such manner  (both as
             regards workmanship  and quality of materials) as to not diminish
             the value of the Rig  and not to remove any material part  of, or
             item of equipment installed  on, the Rig unless the  part or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is in the  same condition as or  better condition than  the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner  and  subject  to  the  security constituted  by  this
             Mortgage;

       (f)   submit  the Rig  to such  periodical or  other surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee  and the Administrative Agent copies of all
             survey reports issued in respect thereof; 

       (g)   permit  the  representatives  of  the   Administrative  Agent  or
             independent surveyors representing the  Trustee to board the  Rig
             at  all  reasonable times  and  upon  reasonable notice  for  the
             purpose  of  inspecting  her  condition  or for  the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and to afford all proper facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged on  or in  respect of  the Rig  and  all other  outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig  pursuant to  legal  process,  or in  the  event of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require; 

       (i)   not employ  the  Rig or  allow her  employment  in any  trade  or
             business  which  is  unlawful  under  the laws  of  any  relevant
             jurisdiction  or in carrying  illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world (whether  war be declared or
             not) not employ the Rig or suffer her employment in  carrying any
             contraband goods  or  to enter  or  trade to  any zone  which  is
             declared  a war  zone  by any  government  or  by the  war  risks
             insurers of the Rig unless  there shall have been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Administrative Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time  to time  require regarding  the Rig,  her employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages and, upon the  request of the Trustee in writing, copies
             of  all charters  and  other  contracts  for  her  employment  or
             otherwise howsoever concerning her;

       (k)   notify  both the  Trustee and the  Administrative Agent forthwith
             by telex or telecopy thereafter confirmed by letter of:

             (i)    any  casualty to  the Rig  which is  or is  likely to  be a
                    Major Casualty, and

             (ii)   any  occurrence in  consequence whereof the  Rig has become
                    or is,  by the  passing of  time  or  otherwise, likely  to
                    become a Total Loss, and 

             (iii)  any  requirement or  recommendation made by  any insurer or
                    classification society or by  any competent authority which
                    is not immediately complied with, and

             (iv)   any  arrest  of  the  Rig  or  the  exercise  or  purported
                    exercise of any lien on  the Rig or any  requisition of the
                    Rig for hire, and

             (v)    any intended dry docking of the Rig, as to which the  Owner
                    shall   give  the  Trustee  ten  (10)  days  prior  notice,
                    provided, that in the  event of any  emergency dry  docking
                    of   the  Rig,  the  Owner  shall  immediately  notify  the
                    Trustee; and

             (vi)   any intended deactivation or lay-up of  the Rig (other than
                    for  normal periods of inactivity between contracts for the
                    Rig  during  which  periods the  Rig  remains  manned)  and
                    obtain the prior written consent of the Trustee;

       (l)   keep  proper books  of account in  respect of the  Rig and as and
             when the  Trustee or the  Administrative Agent may so  reasonably
             require make  such books  available for  inspection on  behalf of
             the  Trustee and furnish satisfactory evidence that the wages and
             allotments  and the insurance  of the master  and crew  are being
             regularly  paid and  that  all deductions  from  crew's wages  in
             respect  of  tax  and/or  social  security  liability  are  being
             properly accounted  for and  that  the master  has  no claim  for
             disbursements  other than those incurred  by him  in the ordinary
             course of trading on the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement  which apply  to the Rig  and the Owner,  and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis; 

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person for the purpose of work being  done upon
             her in an amount  exceeding or likely to exceed  Two Million Five
             Hundred Thousand  United  States Dollars  (US$2,500,000) (or  the
             equivalent  in any other currency) unless such person shall first
             have given  to the Trustee and  in terms  reasonably satisfactory
             to it a  written undertaking not to exercise any  lien on the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established  by the  Ship Mortgage  Act and  any  other pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid  and enforceable  first and preferred  lien upon the
             Rig and promptly  to furnish  to the  Trustee from  time to  time
             such proof as the Trustee may  request for its satisfaction  with 
             respect to  the Owner's compliance  with the  provisions of  this
             sub-clause;

       (p)   place, and  use  due diligence  to retain,  a properly  certified
             copy of this Mortgage on board the Rig with  her papers and cause
             such certified copy of  this Mortgage to be exhibited  to any and
             all persons having  business with the  Rig which might  give rise
             to any  lien thereon other than a lien  for crew's wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and  in the  master's  cabin of  the Rig  a  framed printed
             notice in plain type in  English of such size that  the paragraph
             of  reading matter  shall cover a  space not  less than  6 inches
             wide and 9 inches high reading as follows:

                                       "NOTICE OF MORTGAGE

             This Rig is covered  by a First Preferred Mortgage to CHRISTIANIA
             BANK OG  KREDITKASSE, NEW YORK  BRANCH, as  Security Trustee  for
             the  Banks defined in  the said Mortgage  under authority  of the
             United States Ship Mortgage Act, 1920,  as amended, recodified as
             46 U.S.C.  31301  et seq.  Under the terms of  the said Mortgage
             neither  the Owner nor any  charterer nor the  master of this Rig
             nor  any  other  person has  any  right,  power  or  authority to
             create, incur  or permit  to be  imposed upon this  Rig any  lien
             whatsoever  other  than for  crew's  wages,  general average  and
             salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)    any Environmental Claim  which could reasonably be expected
                    to result in damages in excess of  US$200,000 being or made
                    against  the  Owner, or  otherwise in  connection with  the
                    Rig; or

             (ii)   any Environmental  Incident occurring, and keep the Trustee
                    advised,  in writing  on  such  regular basis  and in  such
                    detail  as  the  Trustee  shall  require,  of  the  Owner's
                    response  to  such  Environmental  Claim  or  Environmental
                    Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by  the  Credit Agreement)  without  the written  consent  of the
             Trustee having first been obtained, and  any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to be a  waiver of this  provision with respect to  any
             subsequent proposed sale, mortgage or  transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the  lien it creates.   The Owner shall  not charter
             the  Rig to, or permit the Rig  to serve under any contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or "specially  designated national"
             of a "designated  foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury Department,  31 C.F.R. Parts 500 and  515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity"  in  the Libyan
             Sanctions Regulations of the  United States Treasury  Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity  of the Government of  Iraq" or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be  codified at  31 C.F.R. Part  575, as amended,  all within the
             meaning   of    said   Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters  or enter any Cuban port for  any purpose or engage in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the  Iranian   Transactions
             Regulations, 31  C.F.R. Part 560,  as amended, the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or violation  would  (i) expose  the Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to law, shall  not abandon  the Rig in  a foreign port,
             shall  not engage in  any unlawful  trade or  violate any  law or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or capture,  and shall not  do, or suffer or  permit to  be done,
             anything which  can or may injuriously affect the registration or
             enrollment of the  Rig under  the laws of  the United States  and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at  any time and as  often as may be  necessary to take  any
       such  action as  it may in  the reasonable  exercise of  its discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created by  this Mortgage  and the  other Credit Documents  (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or 
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the Owner does not comply  with the provisions of Clause 6  or
             any of them the Administrative Agent  shall be entitled (but  not
             bound)  to effect  or  to replace  and  renew  and thereafter  to
             maintain the Insurances  in such manner  as in its  discretion it
             may  think fit and  to require that  all policies,  contracts and
             other  records relating  to the Insurances  (including details of
             any correspondence  concerning outstanding  claims) be  forthwith
             delivered  to  such  brokers  as  the  Administrative  Agent  may
             nominate and  to collect,  recover, compromise  and  give a  good
             discharge for all claims  then outstanding or thereafter  arising
             under  the  Insurances  or  any  of  them  and  to  take over  or
             institute  (if necessary using  the name of  the Owner)  all such
             proceedings  in connection therewith  as the Administrative Agent
             in  its absolute  discretion  may think  fit  and  to permit  the
             brokers through  whom the collection  or recovery is effected  to
             charge the usual brokerage therefor; and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but not bound) to arrange for the  carrying out of such
             repairs to and/or  surveys of  the Rig as  it deems expedient  or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or  any of them  the Trustee shall  be entitled (but  not
             bound)   to  pay  and  discharge  all  such  debts,  damages  and
             liabilities  and  all  such  tolls,  dues,  taxes,   assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS

9.01   Upon  the happening of any  of the  Events of Default  specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to the effect  that an Event of Default
       has  occurred (and whether prior to  or after the Required Banks having
       served  on the Owner any such notice as is  referred to in Section 9 of
       the Credit  Agreement) the security constituted  by this Mortgage shall
       become  immediately enforceable and the  Trustee shall  be entitled, as
       and when it may see  fit, to put into force and exercise  all or any of
       the powers possessed by it as mortgagee of the  Rig or otherwise and in
       particular: 

       (a)   to  exercise  all the  rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to  take possession of the Rig whether actually or constructively
             and/or  otherwise to take control of the Rig wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal process  and without  liability of the  Trustee for
             any  losses or  damages incurred  thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith  delivered to  or to  the order  of the  Administrative
             Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure   that   the  Administrative   Agent   collect,  recover,
             compromise  and give  good discharge  for any  and all  moneys or
             claims  for moneys  then outstanding or  thereafter arising under
             the  Insurances or any Requisition Compensation and to permit any
             brokers  through  whom  collection  or recovery  is  effected  to
             charge the usual brokerage therefor;

       (e)   to take over  or institute  (if necessary using  the name of  the
             Owner) or,  to the extent lawful, procure that the Administrative
             Agent  take over or institute all  such proceedings in connection
             with the Rig, the Insurances, or  any Requisition Compensation as
             the  Trustee  in  its  absolute  discretion  thinks  fit  and  to
             discharge,  compound, release  or compromise  claims  against the
             Owner in respect of the Rig which have given or may  give rise to
             any charge or  lien on the Rig or which are or may be enforceable
             by proceedings against the Rig;

       (f)   to  sell  the Rig  or any  share  therein with  or  without prior
             notice to the  Owner free from any  claim of or  by the Owner  of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some  or all of the purchase price be deferred) as the Trustee in
             its absolute discretion may determine with power  to postpone any
             such sale, without  being answerable  for any loss  occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to  purchase the  Rig at any  such public auction  and to set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms 
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for  the purposes aforesaid the Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting  the Rig, and  the insurance, management, maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in all respects as if the  Trustee were the owner of the Rig  and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses as  may  be  incurred  by  the Trustee  in  or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental to  the  exercise  by  it  of any  of  the  powers
             aforesaid.

9.02   The Trustee shall not be obliged  to make any enquiry as to the  nature
       or sufficiency of any payment  received by it under this Mortgage or to
       make any  claim, take  any action  or enforce  any rights  and benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates and  advisers  shall be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with  the exercise  or  purported exercise  of  any rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall not by reason of the taking possession of  the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or be liable  for any loss upon realization or  for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon any  sale of  the Rig  or  any share  therein by  the Trustee  the
       purchaser  shall not be bound  to see  or enquire whether  the power of
       sale of the Trustee has arisen in the manner  provided in this Mortgage
       and the sale shall be deemed to be within the power of  the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge the purchaser  who shall not be concerned  with the manner of
       application of  the  proceeds of  sale  or  be in  any  way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All  moneys  received  by  the  Trustee  (or  any  other  Secured
             Creditor, as the case  may be) in respect  of sale of the Rig  or
             any  part thereof; in respect  of recovery  under the Insurances;
             or in respect  of Requisition Compensation, shall  be applied  in
             the following manner:

             (i)    first, to the payment  of all amounts owing the Trustee of
                    the type  described in clauses (ii)  and (iii)  of Recital
                    D;

             (ii)   second, to the extent moneys remain after  the application
                    pursuant to the preceding  clause (i), an amount  equal to
                    the outstanding Obligations shall  be paid to the  Secured
                    Creditors  as  provided  in  Clause  10.01(c),  with  each
                    Secured  Creditor  receiving  an  amount   equal  to  such
                    Obligations   held  by   it  or,   if  the   proceeds  are
                    insufficient to pay  in full all such Obligations, its Pro
                    Rata Share (as  defined below) of the amount  remaining to
                    be distributed; and

             (iii)  third, to the extent  moneys remain after the  application
                    pursuant  to  the  preceding  clauses (i)  and  (ii),  and
                    following  the termination  of  this Mortgage  pursuant to
                    Clause  3.01, any surplus then  remaining shall be paid to
                    the Owner, subject,  however, to the rights  of the holder
                    of any then existing  Lien of which the Trustee has actual
                    notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount of  such Obligations owing to or held  by such
             Secured  Creditor  and  the  denominator  of  which  is the  then
             outstanding amount  of all  such Obligations.    For purposes  of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee  shall be  entitled to  request each  Secured Creditor to
             furnish it with written  notice of the amount of Obligations then
             owed  to  it and  shall be  entitled  to reply  upon  the amounts
             stated therein in making such distribution.

       (c)   All  payments required to be  made to Secured Creditors hereunder
             shall  be made  to  the  Administrative  Agent under  the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i) the  Administrative Agent under the Credit Agreement and (ii)
             the   Secured   Creditors   for   a  determination   (which   the
             Administrative  Agent   and  each  Secured  Creditor,   by  their
             acceptance of  the benefits  of this Mortgage  shall be obligated
             to  provide upon  request  of  the  Trustee) of  the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge  (including by  way of  written  notice from  a Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in  furnishing information  pursuant  to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be entitled to  assume that no obligations  other than principal,
             interest  and regularly  accruing fees are  owing to  any Secured
             Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:

       (a)   perfecting  or protecting the security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting  any of the  rights of the  Trustee, and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring  that the security constituted by  this Mortgage and the
             covenants and obligations of the Owner  under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner, by  way of security  and in order more  fully to secure  the
       performance  of   the  Obligations,  hereby  irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in its name  all documents which the  Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage shall  have become  immediately enforceable  pursuant to
             Clause 9.01; and 

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of  such power as is referred to  in Clause 12.01(a) by or
       on  behalf of the  Trustee shall  not put any  person dealing  with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor  shall such  person be in  any way  affected by  notice
       that this Mortgage has not become enforceable  and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on  the release  of the  Rig  from the  security created  by this
             Mortgage,

       and the  Secured Creditors and each  such agent or attorney  may retain
       and pay all  sums in respect  of the same  out of money  received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by  such  Secured  Creditors   or  such  agent  or  attorney  shall  be
       recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred  by or asserted against them, or any of them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury  (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement  reached;  or (d)  any  violation  of laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig. 

13.03  If, under any applicable law  or regulation, and whether pursuant  to a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or  for  any other  reason,  any  payment  under  or in
       connection  with this Mortgage is  made or  fails to be  satisfied in a
       currency (the  "payment currency")  other  than the  currency in  which
       such payment is  due under  or in  connection with  this Mortgage  (the
       "contractual  currency"), then to  the extent that  the amount  of such
       payment  actually  received by  the  Trustee, when  converted  into the
       contractual  currency at  the  rate of  exchange,  falls  short of  the
       amount due under  or in connection with this Mortgage,  the Owner, as a
       separate and independent obligation, shall indemnify  and hold harmless
       the Trustee against the amount  of such shortfall.  For the purposes of
       this Clause 13.03,  "rate of  exchange"  means the  rate  at which  the
       Trustee is  able  on  the date  of  such  payment (or,  if  it  is  not
       practicable for the Trustee to  purchase the contractual currency  with
       the  payment currency  on the  date  of such  payment, at  the rate  of
       exchange as  soon afterwards as  is practicable  for the Trustee  to do
       so) to purchase the  contractual currency with the payment currency and
       shall take into account  any premium and other  costs of exchange  with
       respect thereto.

14.    EXPENSES

14.01  The  Owner shall pay to any Secured  Creditor on demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the  negotiation,  preparation   and  execution  of   the  Credit
             Agreement and the Credit Documents (or any of them); and/or

       (b)   the preserving  or enforcing  of, or  attempting  to preserve  or
             enforce,  any of its  rights under the  Credit Agreement  and the
             Credit Documents (or any of them).

14.02  The  Owner shall  pay to  the Trustee  and the Administrative  Agent on
       demand  all costs, fees  and expenses (including,  but not  limited to,
       legal  fees and  expenses) and  Taxes thereon  incurred by  any Secured
       Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the  Credit Agreement and  the Credit Documents  (or any
             of  them) requested  by the  Owner, necessary  or advisable under
             applicable law or  relating to  the syndication of  the Facility,
             or initiated during the  occurrence and continuation of  an Event
             of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the Credit Agreement and the Credit Documents (or any of them), 

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement  and  the  Credit
       Documents (or  any of  them)  may be  subject or  give  rise and  shall
       indemnify the Trustee  on demand against  any and all  liabilities with
       respect to or resulting from  any delay or omission on the  part of the
       Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to  the Trustee hereunder shall be in  writing and shall be
       made to the following address:


                   Christiania Bank og Kreditkasse, New York Branch
                   11 West 42nd Street
                   7th Floor
                   New York, New York  10036
                   Telefax:  (212) 827-4888
                   Attention:  Loan Administration


       All  other notices  shall be  made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors  and permitted assigns  and references  in this  Mortgage to
       any of them shall be construed accordingly.

16.02  The Owner  may not assign  or transfer  all or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.04 of  the Credit Agreement, each  Bank has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations  under the Credit Agreement  on the terms therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this  Mortgage is  Three Hundred Million  U.S. Dollars (US$300,000,000)
       of  principal  plus  interest,  fees, commissions  and  performance  of
       mortgage covenants.   The interest  of the  Owner in  the Rig is  100%.
       The interest of the Trustee  in the Rig is 100%.   The date of maturity
       is  November 13,  2001, and  the discharge  amount is  the same  as the
       total amount  plus such other sums as shall be  payable by the Owner to
       the Banks under the Credit Agreement.

18.    MISCELLANEOUS

18.01  If at any  time any one or more  of the provisions in this  Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law  or regulation,  the validity,  legality and  enforceability of the
       remaining provisions of this Mortgage shall not  be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time  and from time to time, may delegate  by power
       of attorney or in any other manner to any  person or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such delegation  may be made upon such terms  and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in any  way liable or responsible  to the Owner for any  loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for  in this Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The  Owner agrees that the Trustee shall have the liberty but shall not
       be  obliged to  take any  proceedings in the  courts of  any country to
       protect or  enforce the  security constituted  by this Mortgage  and/or
       the Credit  Agreement and  the  Security Documents  or  to enforce  any
       provisions  of  this  Mortgage  and/or  the  Credit  Agreement and  the
       Security Documents or  to enforce the  Obligations and for  the purpose
       of  any proceedings for  such enforcement the  Owner hereby  submits to
       the  jurisdiction of  the courts  of any country  of the  choice of the
       Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place  the Rig shall be  found lying and for the  purpose of any action
       which the  Trustee may bring before the courts  of such jurisdiction or
       other judicial  authority and for the  purpose of any action  which the
       Trustee may bring against the Rig, any writ, notice,  judgment or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner agrees  that  should the  Trustee bring  a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in connection  with this Mortgage,  no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby consents generally in  respect of any legal action  or
       proceedings arising  out of or in connection with  this Mortgage to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made  or given in such
       action or proceedings.


IN WITNESS  whereof the Owner has caused this Mortgage to be executed the  day
and year first before written.

READING & BATES DRILLING CO.

By_____________________________________
   Name:  T.W. Nagle
   Title:  Vice President and Treasurer



                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle  to me  known who  being by  me duly  sworn did  depose and say  that he
resides  at 13307  Tosca Lane,  Houston,  TX; that  he is  Vice  President and
Treasurer  for READING & BATES DRILLING  CO., the corporation described in and
which executed the  foregoing instrument; and that he  signed his name thereto
by order of the Board of Directors of READING & BATES DRILLING CO.

                                 _____________________
                                 Notary Public 


                                                                Exhibit 10.122


                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996

                        READING & BATES EXPLORATION CO.

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee

                                  W. D. KENT

=============================================================================
                                     INDEX

CLAUSE                  SUBJECT MATTERPAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  13 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  17 
      9     ENFORCEABILITY AND TRUSTEE'S POWERS . . . . . . . . . . . . .  18 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  21 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  24 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  24 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

      ACKNOWLEDGEMENT OF MORTGAGE
      EXHIBIT 1 FORM OF CREDIT AGREEMENT
      EXHIBIT 2 FORM OF SUBSIDIARY GUARANTY

=============================================================================

THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 13th day  of
November, 1996

BY

(1)    READING &  BATES EXPLORATION CO.,  an Oklahoma  corporation having  its
       principal offices at 901  Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"),

IN FAVOR OF

(2)    CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK BRANCH, a  Norwegian banking
       corporation  having its office  at 11 West  42nd Street,  New York, New
       York, as  security trustee for  the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is the sole owner of  the whole of the offshore drilling  rig
       W. D. KENT documented under  the laws and flag of the United  States of
       America with Official Number 583169 of 5,383  gross registered tons and
       4,185 net registered tons (the "Rig").

(B)    By  a Credit  Agreement dated  as of  November  13, 1996  (as modified,
       amended  or supplemented  from time  to time,  the  "Credit Agreement")
       among  (i)  Reading   &  Bates  Corporation,  a   Delaware  corporation
       ("Holdings"),  (ii)   Reading  &  Bates   Drilling  Co.,  an   Oklahoma
       corporation  (the  "Borrower"),  (iii) the  banks  party  thereto  (the
       "Banks"), (iv) Credit  Lyonnais New York Branch and Banque Indosuez, as
       documentation agents (the "Documentation Agents")  and (v) the Trustee,
       as  administrative  agent,  arranger  and  security  trustee  (in  such
       capacity,  the  "Administrative  Agent")  (the  form  of  which  Credit
       Agreement together  with Exhibit B  thereto but  without the  remaining
       attachments  is attached  hereto  as Exhibit  1),  it was  agreed among
       other things that the Banks would  make available to the Borrower  upon
       the terms and conditions therein described a reducing  revolving credit
       facility  (the  "Facility")   in  an  aggregate  amount   at  any  time
       outstanding   of   Three   Hundred    Million   United States   Dollars
       (US$300,000,000), providing  for the making  of Loans and the  issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The obligations  of  the Borrower  with  respect  to the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the promissory notes of the Borrower payable to the  order of
       the respective  Banks (each  a "Note"  and, collectively,  the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed and delivered a  Subsidiary Guaranty (as modified, amended  or
       supplemented from time  to time,  the "Subsidiary Guaranty"),  the form
       of which  Subsidiary Guaranty is attached hereto as Exhibit 2, in favor
       of  the  Administrative  Agent  guaranteeing  the  performance  by  the
       Borrower of  its obligations under  the Credit Agreement  and the other
       Credit Documents.

(E)    This  Mortgage is made  for the  benefit of  the Trustee to  secure the
       guaranty by the  Owner of (i) the  full and prompt payment  when due of
       (x) the principal of  and interest on the Notes issued, and Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect  to the Letters of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of the  Borrower  to the  Secured  Creditors (as  hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit Agreement and the other  Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by  the Borrower  with  all of  the terms,
       conditions and  agreements contained  in the Credit  Agreement and  the
       other Credit  Documents including,  without limitation, this  Mortgage;
       (ii) any and all sums advanced by the Trustee in order to preserve  the
       Collateral (as hereinafter  defined) or preserve its  security interest
       in  the Collateral;  (iii)  in  the event  of  any proceeding  for  the
       collection   or  enforcement  of   any  indebtedness,  obligations,  or
       liabilities of  the Borrower referred to in  clause (i) above, after an
       Event of Default  shall have occurred and be continuing, the reasonable
       expenses of  the Trustee of  re-taking, holding, preparing  for sale or
       lease,   selling  or  otherwise  disposing  of   or  realizing  on  the
       Collateral, or of any exercise by the  Trustee of its rights hereunder,
       together with reasonable  attorneys' fees of counsel to the Trustee and
       court costs; and  (iv) all amounts paid  by any Indemnitee as  to which
       such Indemnitee  has the right to reimbursement under Clause 13 of this
       Mortgage  (all   such  obligations,  liabilities,   sums  and  expenses
       referred  to  in  clauses (i)  through  (iv)  above being  collectively
       referred to as the "Obligations").  It is  acknowledged and agreed that
       the "Obligations"  shall  include extensions  of  credit of  the  types
       described above,  whether outstanding on  the date of  this Mortgage or
       extended from time to time after the date of this Mortgage. 

(F)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of the Banks agreeing  to make the Facility  available to
       the Borrower  and  as  a  condition  thereto and  for  other  good  and
       valuable consideration provided by the Banks (the  sufficiency of which
       the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage unless the  context otherwise requires, the  following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank" means  any lender  listed from time  to time on  Annex I  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the same meaning for such term as set forth  in
       the Credit Agreement;

       "Credit Agreement"  means the  Credit Agreement, dated  as of  November
       13, 1996,  among Holdings, the  Borrower, the Banks, the  Documentation
       Agents, and the Administrative Agent  first referred to in  Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents" shall have  the meaning for  such term as set  forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no Letters of  Credit remain outstanding  and the Loans and  the Unpaid
       Drawings together  with interest,  fees and  all other  obligations are
       paid in full;

       "Default  Rate"  shall   mean  the  rate  of  interest   calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or  authorization required  under  applicable Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance  or  violation,  investigations (other  than
       internal  reports  prepared  by Holdings  or  any  of its  Subsidiaries
       solely  in the  ordinary course  of such  Person's business and  not in
       response  to  any  third  party  action  or  request of  any  kind)  or
       proceedings  relating in any way to any Environmental Law or any permit
       issued,  or  any  approval given,  under  any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental  or  regulatory  authorities for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by   any   third   party   seeking    damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means (i)  any  release  of  Environmentally
       Sensitive  Material  from  the   Rig,  (ii)   any  incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and  which involves  collision between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or otherwise liable (in whole  or in part) or (iii) any  incident
       in  which Environmentally Sensitive Material is  released from a vessel
       other than the Rig and where the Rig is actually or potentially  liable
       to  be arrested  as a  result and/or  where  the Owner  is actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking,  leaching,  dumping, emitting,  escaping,  emptying,  seeping,
       placing  and  the like,  into or  upon  any land  or  water or  air, or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule  of common law now or hereafter  in effect and in each case as
       amended,  and  any judicial  or administrative  interpretation thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including, without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act, as amended, 33 U.S.C.  1251 et seq.;  the
       Toxic Substances Control Act,  15 U.S.C.  7401 et seq.;  the Clean Air
       Act, 42  U.S.C.  7401 et seq.; the  Safe Drinking Water Act, 42 U.S.C.
       3808  et seq.; the  Oil Pollution Act  of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall  have the same meaning  for such term as  set forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation, transformers  or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous waste,"  "restricted  hazardous waste,"  "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental  Law; and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect  of the Rig or otherwise by  the Owner (whether
       in the sole name of  the Owner or in the  joint names of the  Owner and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for  such term as  set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of Credit" shall  have the  same meaning for  such term as  set
       forth in Section 2.01(a) of the Credit Agreement;

       "Loan(s)" shall have the  same meaning  for such term  as set forth  in
       the Credit Agreement;

       "Major Casualty" means any casualty  to the Rig in respect  whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means  each  promissory note  of  the  Borrower referred  to  in
       Recital (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C. 
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       semi-submersible  drilling  rig  JACK  BATES   owned  by  the  Borrower
       documented under the laws  and flag of the United  States with Official
       Number  906283  of  19,928  gross  registered  tons  and    14,948  net
       registered  tons;  (ii) the  jack-up  drilling rig  GEORGE  H. GALLOWAY
       owned by  Reading & Bates  Offshore, Limited documented  under the laws
       and flag  of the  United States  with Official  Number 651646 of  3,729
       gross  registered  tons  and  2,496  net  registered  tons;  (iii)  the
       offshore drilling rig  CHARLEY GRAVES owned by Reading and Bates Borneo
       Drilling  Co., Ltd. documented under the laws  and flag of the Republic
       of  Panama  with Patente  Number 6618-76-CH  of 5,829  gross registered
       tons and 1,748 net registered  tons; (iv) the jack-up drilling rig  RON
       TAPPMEYER owned  by Reading &  Bates (A) Pty Ltd.  documented under the
       laws and flag  of Australia with Official Number 855213 of 11,455 gross
       registered  tons  and   3,436  net  registered  tons;  (v)   the  semi-
       submersible drilling rig  J. W. McLEAN owned by the Borrower documented
       under the  laws and flag of the Republic  of Panama with Patente Number
       25384-PEXT  of 15,453  gross registered tons  and 4,636  net registered
       tons; (vi)  the  semi-submersible drilling  rig  RIG  41 owned  by  the
       Borrower documented under the laws  and flag of the Republic  of Panama
       with the  Patente Number to  be assigned on  the date hereof of  10,078
       gross registered tons  and 3,024 net registered tons; (vii) the jack-up
       drilling rig HARVEY  H. WARD owned  by HRB  Rig Corporation  documented
       under the laws and  flag of the United States of  America with Official
       Number 642693 of 4,121 gross  registered tons and 3,079  net registered
       tons;  (viii)  the jack-up  drilling  rig  F.  G.  McCLINTOCK owned  by
       Reading &  Bates Offshore, Limited  documented under the  laws and flag
       of the  United States of America  with Official Number 562059  of 5,525
       gross registered tons and 1,657  net registered tons; (ix)  the jack-up
       drilling rig RANDOLPH YOST owned  by the Borrower documented  under the
       laws  and flag of  the United  States of  America with  Official Number
       601699 of  4,701 gross registered  tons and 4,701  net registered tons;
       (x)  the jack-up  drilling  rig  J.  T.  ANGEL owned  by  the  Borrower
       documented under  the laws and  flag of  the United  States of  America
       with Official  Number 651645 of  4,186 gross registered  tons and 3,090
       net registered  tons; (xi)  the jack-up  drilling rig  ROGER W.  MOWELL
       owned by the Borrower documented under the laws  and flag of the United
       States  of  America  with   Official  Number  645360  of   4,121  gross
       registered tons  and  3,079  net registered  tons;  (xii)  the  jack-up
       drilling rig of D.  R. STEWART owned by the Owner  documented under the
       laws and  flag of  the United  States of America  with Official  Number
       626904 of  6,494 gross registered  tons and 5,834  net registered tons;
       and (xiii) the jack-up drilling rig  C. E. THORNTON to be owned  by HRB
       Rig Corporation  documented  under the  laws  and  flag of  the  United
       States  of  America  with   Official  Number  673210  of  6,096   gross
       registered tons and 6,096 net registered tons;

       "Permitted  Liens" means:  (1) liens  incident to  expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30)  days (or being contested in good faith, provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a bond or other  security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable; (3)  liens for  taxes, assessments,  governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested  in good  faith, provided  such liens  are not  in excess  of
       U.S.$5,000,000.00, and  if  in excess  thereof, then  the Owner  shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security  satisfactory to the Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause  6 hereof (except that  no lien shall be  deemed
       not covered  by insurance to the extent  insurance in force would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant to any  judgment or to  an order of  attachment, distraint  or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the  payment  or  discharge of  which  provisions  satisfactory to  the
       Administrative Agent have been made as evidenced by the  Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate  to the lien of this Mortgage or (ii) constitute a maritime
       lien which would in any event be entitled as such  to priority over the
       Mortgage under  the United  States shipping  laws  or other  applicable
       laws relating  to the Rig's trading  pattern.  Nothing herein  shall be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection and  indemnity  risks" means  the  usual risks  covered  by
       protection   and   indemnity  associations   of   international  repute
       including the  proportion not recoverable  in case  of collision  under
       the ordinary running-down clause  (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the Credit  Facility Period by reason of requisition for
       title  or other  compulsory acquisition  of the  Rig otherwise  than by
       requisition for hire;

       "Rig"  means the vessel  described in Recital  (A) hereto  and includes
       any share  or  interest  therein and  her  engines,  machinery,  boats,
       tackle,  outfit,  spare  gear,   fuel,  consumable  or  other   stores,
       belongings and  appurtenances whether  on board  or ashore  and whether
       now  owned or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit Issuer and  the Administrative Agent under and as defined in the
       Credit Agreement;

       "Security  Documents" shall have the same  meaning for such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Subsidiary  Guaranty" means  the agreement  dated as  of  November 13,
       1996 made by the  Owner in favor of  the Administrative Agent as  first
       referred  to   in  Recital   (D)  hereto,   as  modified,   amended  or
       supplemented from time to time;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes" shall have the same meaning for  such term as set forth in  the
       Credit Agreement;

       "Total  Commitment" shall have  the same meaning  for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive, arranged,  agreed, or
       compromised  Total Loss of  the Rig;  (b) the requisition  for title or
       other compulsory acquisition  or forfeiture  of the Rig  otherwise than
       by  requisition for hire; (c)  the capture,  seizure, arrest, detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting  to  act on  behalf  of  any government  unless  the Rig  be
       released from such capture, seizure, arrest or detention  within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing"  shall have  the same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard  form of  English marine  policy by  the free  of  capture and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are inserted  for convenience only and shall  not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to any Security Interest (except  for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has not  sold or  transferred, or  agreed  to sell  or
             transfer, title to the Rig or any share therein;

       (c)   the Owner  is a  corporation duly organized  and validly existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the  Owner has full power  and authority (i)  to register the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig;

       (f)   the  Owner has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner  enforceable against the Owner in accordance with its terms
             (except  to   the  extent   limited  by  applicable   bankruptcy,
             reorganization, insolvency, moratorium  or other laws  of general
             application   relating  to   or  affecting   the  enforcement  of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's National  Vessel Documentation  Center in  Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect (i) any  law or regulation of any governmental  or
             official  authority or  body,  or (ii)  any  of the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is a  party or which is  binding upon the Owner  or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection   with  the  entry  into,  performance,  validity  and
             enforceability    of   this   Mortgage   and   the   transactions
             contemplated hereby  and thereby have  been obtained  and are  in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage,  it is not necessary  for the  legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that  it or  any document relating  thereto be registered, filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or  that any stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws  and all Environmental  Approvals relating  to the  Rig, its
             operation and management  and the business  of the Owner  (as now
             conducted  and as reasonably anticipated  to be  conducted in the
             future) have been obtained or complied with;

       (k)   no Environmental  Claim has  been made or  threatened against the
             Owner, the Approved  Manager or otherwise in  connection with the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be expected  to result,  in an Environmental  Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall  survive the execution of this Mortgage and shall be deemed to be
       repeated at  the time of the making of each Loan and at the time of the
       issuance  of  each Letter  of Credit,  with  respect to  the  facts and
       circumstances  existing at  each  such time,  as if  made at  each such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto the Trustee, its successors  and assigns, the whole of the  Rig TO
       HAVE AND TO HOLD the  same unto the Trustee, its successors and assigns
       forever upon  the terms  herein set  forth for the  enforcement of  the
       Obligations.

       Provided only and  the condition of these presents is  such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been performed  in full  as  and when  the same  shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in the  Subsidiary Guaranty and this  Mortgage
       expressed or  implied to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then these  presents and the  rights hereunder  shall cease,  determine
       and be void otherwise  to be and remain  in full force and effect  and,
       in such event, the Trustee  agrees to execute and record at the expense
       of the  Owner, all such documents  as the Owner  may reasonably require
       to discharge this Mortgage.

       Notwithstanding  anything to  the contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that if  any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig and  none of the Secured  Creditors shall
       be under  any obligation of any  kind whatsoever in  respect thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors   for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or  other moneys  as are  stated in  this Mortgage to  be
             payable by  the Owner  to or  recoverable from  the Owner  by the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other  moneys referred to
             in Clause 4.01(a)  from the date on  which demand is  made by any
             Secured  Creditor  for  payment  by  the  Owner  of  the relevant
             expense,  claim,  liability, loss,  cost,  duty,  fee, charge  or
             other money incurred  by a Secured  Creditor for which  the Owner
             is  responsible (both before and  after any relevant judgment) at
             the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing  to  a  Secured  Creditor  under  this   Mortgage  and  the
             Subsidiary  Guaranty at  the  times and  in the  manner specified
             herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations  and  that  the  security  so  created shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be prejudiced  or affected by any  of the other  Security
             Documents;

       (c)   the Trustee shall not have to  wait for the Administrative  Agent
             to enforce  any of the other  Security Documents before enforcing
             the security created by this Mortgage;

       (d)   no  delay or  omission on the  part of the  Trustee in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or remedy  or be construed  as a waiver thereof  nor
             shall any single  or partial exercise of any such right, power or
             remedy preclude any further  exercise thereof or the  exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective  if given in writing and  then only for the purpose and
             upon the terms for which it is given.

5.02   Any settlement  or discharge  under this  Mortgage between  the Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being avoided or set-aside or ordered to be refunded  or reduced
       by  virtue  of  any  provision or  enactment  relating  to  bankruptcy,
       insolvency, administration  or liquidation for the  time being in force
       and, if such condition is  not satisfied, the Trustee shall be entitled
       to recover from the Owner on  demand the value of such security or  the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair,  affect or discharge  such rights and security,  in whole or
       in part, including without  limitation, and whether or not  known to or
       discoverable by the Secured Creditors or any other person:

       (a)   any time  or waiver granted  to the Credit  Parties or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit  Parties or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other  Credit Documents  (other than this  Mortgage) or any other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity  or   frustration   of   any
             obligations  of any  of the  Credit Parties  or any  other person
             under the Credit  Agreement, any of the other  Security Documents
             (other than this Mortgage) or any other document or security.

6.     INSURANCE

6.01   The  Owner covenants  with the  Trustee throughout  the Credit Facility
       Period that:

       (a)   The  Owner shall,  at its  own expense, when  and so  long as any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured, or cause  the Rig to be insured, in  lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and indemnity  risks,  pollution  liability, and  war
             risks), in such form  (including without limitation, the form  of
             the loss payable  clause and  the designation of  named assureds)
             and  with  such  first class  insurance  companies, underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect  to   hull  and   machinery/increased  value   insurance,
             including war risk, the Owner  shall insure the Rig and  keep her
             insured,  or cause the Rig to be  insured, for an amount which is
             at least  the full  commercial value  of the Rig,  and when  such
             amount is aggregated with  the amount of such insurance  coverage
             on the  Other Rigs, such aggregate amount  shall be at least 110%
             of the Total Commitment.   The Rig shall  in no event be  insured
             for an amount less than the agreed valuation as  set forth in the
             applicable marine  and war risk  policies.  Such insurance  shall
             cover  marine and war  risk perils, on  hull and  machinery, with
             deductibles  not in excess of US$500,000 (such deductibles not to
             apply  in the  case  of Total  Loss  of the  Rig),  and shall  be
             maintained  in  the broadest  forms  available  in the  American,
             British  and  Scandinavian insurance  markets  or  in such  other
             major   international  markets   reasonably  acceptable   to  the
             Administrative Agent.  The Owner shall  maintain, or cause to  be
             maintained,  protection  and indemnity  or  equivalent insurance,
             including  war  risk  protection   and  indemnity  coverage   and
             coverage against pollution liability, in an amount not  less than
             US$100,000,000   (or,   with  respect   to   pollution  liability
             coverage,  such greater amount  as may be  required from  time to
             time  by  the Oil  Pollution  Act  1990, or  other  Environmental
             Laws),  as and  when applicable  to the  Rig and  its operations,
             through   underwriters   or   associations   acceptable   to  the
             Administrative Agent.  In addition, the  Owner shall, at its  own
             expense,  furnish  to  the  Administrative  Agent  a  mortgagee's
             single interest policy providing coverage  which, when aggregated
             with  the   mortgagee's  interest  insurance   furnished  to  the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an  amount equal to at least 110%  of the aggregate amount of the
             Total  Commitment  (or  in  lieu  of  such  mortgagee's  interest
             insurance  Owner shall  cause  the  hull and  machinery/increased
             value  insurance to  be  endorsed to  afford  breach of  warranty
             coverage for  the  benefit of  the Administrative  Agent).   Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies  for the  benefit of the  Administrative Agent  shall be
             maintained  in  the  broadest  form available  in  the  American,
             British  and Scandinavian  markets or  other major  international
             markets   acceptable   to   the   Administrative   Agent  through
             underwriters  acceptable to  the Administrative  Agent.   The Rig
             shall not operate  in or proceed  into any area then  excluded by
             trading  warranties  under  its  marine  or   war  risk  policies
             (including  protection  and  indemnity)   without  obtaining  any
             necessary   additional   coverage,  satisfactory   in   form  and
             substance,  and evidence  of  which shall  be  furnished, to  the
             Administrative Agent.

       (b)   The  policy   or  policies  of  insurance   shall  be  issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and  insuring   covenants   satisfactory  to   the
             Administrative Agent, and shall  be kept in full force and effect
             by the  Owner so long as any Obligations remain outstanding.  All
             such  policies,  binders and  other  interim insurance  contracts
             shall  be executed and issued in the name of the Owner and shall,
             to the extent  required herein, provide  that loss be  payable to
             the Administrative Agent  for distribution  by it to  itself, the
             Banks  and the  Owner as  their interests  may appear,  and shall
             provide for at least  ten days' prior notice  to be given to  the
             Administrative  Agent by  the underwriters or  association in the
             event of  cancellation or  the failure  of the Owner  to pay  any
             premium or call which  would suspend coverage under the policy or
             the payment of a  claim thereunder.  The Administrative Agent and
             the Trustee shall  be named as  co-assureds on all  such policies
             and  insurance   contracts,   but   without  liability   of   the
             Administrative  Agent  or  the  Trustee for  premiums  or  calls.
             Certified copies  of all such policies, binders and other interim
             insurance  contracts shall  be deposited  with the Administrative
             Agent.   Originals shall also be provided upon the request of the
             Administrative   Agent.     The  Owner   shall  furnish   to  the
             Administrative  Agent annually a detailed report signed by a firm
             of marine insurance  brokers satisfactory  to the  Administrative
             Agent  as to the  insurance maintained in respect  of the Rig, as
             to their opinion as to the adequacy thereof and as to  compliance
             with the provisions of this Clause 6.01.

             Unless otherwise required by  the Administrative Agent by  notice
             to the underwriters, although the following  insurance is payable
             to the Administrative Agent,  (i) any loss under any insurance on
             the  Rig with respect  to protection and  indemnity risks  may be
             paid directly to the Owner to  reimburse it for any loss,  damage
             or expense incurred  by it and  covered by  such insurance or  to
             the person to  whom any liability  covered by such  insurance has
             been  incurred and (ii)  in the  case of any  loss (other  than a
             loss covered by (i) above  or by the next following paragraph  of
             this Clause 6.01(b)) under  any insurance with respect to the Rig
             involving any  damage  to  the  Rig,  the  underwriters  may  pay
             directly for  the repair, salvage  or other charges involved  or,
             if the  Owner shall have first fully repaired  the damage or paid
             all  of the  salvage  or  other charges,  may  pay the  Owner  as
             reimbursement  therefor; provided,  however, that  if such damage
             involves a before deductible  loss in excess of US$1,000,000, the
             underwriters shall not make such payment  without first obtaining
             the  written consent  thereto of the  Administrative Agent (which
             consent shall not be  unreasonably withheld).   Any loss  covered
             by this paragraph which is paid  to the Administrative Agent  but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the Administrative  Agent to, or as directed by, the Owner and
             all other  payments to the Administrative Agent of losses covered
             by this paragraph  shall be applied by  the Administrative  Agent
             in accordance with Clause 10.01.

             In the  event  of an  actual  or  constructive Total  Loss  or  a
             compromised constructive Total Loss or requisition  of title, all
             insurance payments therefor shall  be paid to the  Administrative
             Agent.    The  Owner  shall  not   declare  or  agree  with   the
             underwriters  that  the Rig  is  a  constructive or  compromised,
             agreed  or  arranged constructive  Total Loss  without  the prior
             written consent of the Administrative Agent.

       (c)   In  the event of an actual or constructive Total Loss of the Rig,
             the  Administrative  Agent  shall  retain out  of  the  insurance
             payments received on  account of such  loss any sum or  sums that
             shall be  or become  owing  to the  Secured  Creditors under  the
             Security Documents,  whether or  not  the same  be  then due  and
             payable, together with accrued  interest and the cost, if any, of
             collecting  the insurance,  and pay  the  balance as  provided in
             Clause 10.

       (d)   The Owner shall  comply with and satisfy all of the provisions of
             any applicable law, regulation, proclamation  or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and  will maintain,  or cause to  be maintained, all certificates
             or other evidence of financial responsibility as may be  required
             by any such law,  regulation, proclamation or order  with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The  Owner shall renew all insurances as they expire and so as to
             insure that there is  no gap in coverage, keep the Administrative
             Agent advised of the  progress of such renewals, and procure that
             the   insurers  shall   promptly  confirm   in  writing   to  the
             Administrative Agent as and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or other  sums  payable  in  respect of  all  such
             insurances and produce  all relevant receipts when so required by
             the Administrative Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments   of  insurance   aforesaid  relative   to  the   Rig
             (including any warranties,  express or implied,  therein) without
             first  obtaining the  consent of the  insurers to such employment
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants  with  the  Trustee  that  throughout the  Credit
       Facility Period the Owner will:

       (a)   maintain  its existence  as a  corporation in  good standing duly
             organized under the laws of the State of Oklahoma;

       (b)   keep  the Rig documented  in its name  as a  United States vessel
             and to do or allow  to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig in  a good and efficient state  of repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  Barge)   at  the  American  Bureau   of  Shipping   free  of
             recommendations  and qualifications  and  change of  class,  save
             those notified to  and approved in writing by  the Trustee and so
             as  to  comply  with  all  laws,   regulations  and  requirements
             (statutory or  otherwise) from time to time applicable to vessels
             documented under  the laws  and  flag of  the  United States  and
             applicable to  vessels trading to  any jurisdiction to which  the
             Rig may, subject to the provisions  of this Mortgage, trade  from
             time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost parts  or equipment be effected  in such manner  (both as
             regards workmanship and quality of materials)  as to not diminish
             the value of the  Rig and not to remove any material  part of, or
             item of  equipment installed on, the Rig  unless the part or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is  in the same condition  as or better  condition than the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner and  subject  to  the  security  constituted  by  this
             Mortgage;

       (f)   submit the  Rig to  such periodical  or other surveys  as may  be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee  and the Administrative Agent copies of all
             survey reports issued in respect thereof;

       (g)   permit  the  representatives  of  the  Administrative  Agent   or
             independent surveyors representing the  Trustee to board the  Rig
             at  all  reasonable times  and  upon  reasonable notice  for  the
             purpose  of  inspecting  her  condition  or for  the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and to afford all proper facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in respect  of the  Rig and  all other  outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig pursuant  to  legal  process, or  in  the  event of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (i)   not employ  the  Rig or  allow  her employment  in any  trade  or
             business  which  is  unlawful  under  the laws  of  any  relevant
             jurisdiction  or in carrying  illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world (whether war be declared  or
             not) not  employ the Rig or suffer her employment in carrying any
             contraband goods  or  to enter  or  trade to  any  zone which  is
             declared  a war  zone  by  any government  or  by the  war  risks
             insurers of the Rig unless there shall have  been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Administrative Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time to  time require  regarding the  Rig,  her employment,
             position  and  engagements,   particulars  of  all  towages   and
             salvages and, upon the  request of the Trustee in writing, copies
             of  all  charters  and  other  contracts  for  her employment  or
             otherwise howsoever concerning her;

       (k)   notify  both the  Trustee and the  Administrative Agent forthwith
             by telex or telecopy thereafter confirmed by letter of:

             (i)    any  casualty to  the Rig  which is  or is  likely to  be a
                    Major Casualty, and

             (ii)   any  occurrence in  consequence whereof the  Rig has become
                    or is,  by the  passing of  time  or  otherwise, likely  to
                    become a Total Loss, and

             (iii)  any  requirement or  recommendation made by  any insurer or
                    classification society  or by any competent authority which
                    is not immediately complied with, and

             (iv)   any  arrest  of  the  Rig  or  the  exercise  or  purported
                    exercise of any lien on the  Rig or any requisition  of the
                    Rig for hire, and

             (v)    any  intended dry docking of the Rig, as to which the Owner
                    shall   give  the  Trustee  ten  (10)  days  prior  notice,
                    provided, that  in the event  of any  emergency dry docking
                    of   the  Rig,  the  Owner  shall  immediately  notify  the
                    Trustee; and

             (vi)   any intended deactivation or  lay-up of the Rig (other than
                    for  normal periods of inactivity between contracts for the
                    Rig  during  which  periods the  Rig  remains  manned)  and
                    obtain the prior written consent of the Trustee;

       (l)   keep  proper books of account  in respect  of the Rig  and as and
             when the Trustee  or the Administrative Agent  may so  reasonably
             require make  such books  available for  inspection on behalf  of
             the Trustee and furnish satisfactory evidence that the  wages and
             allotments  and the insurance  of the master  and crew  are being
             regularly  paid and  that  all deductions  from  crew's wages  in
             respect  of  tax  and/or  social  security  liability  are  being
             properly accounted  for and  that  the master  has  no claim  for
             disbursements other than  those incurred  by him in  the ordinary
             course of trading on the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement which  apply to  the Rig and  the Owner, and  in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person for the purpose  of work being done upon
             her in an amount exceeding  or likely to exceed Two Million  Five
             Hundred Thousand  United  States Dollars  (US$2,500,000) (or  the
             equivalent in any  other currency) unless such person shall first
             have given  to the Trustee  and in terms reasonably  satisfactory
             to it a written undertaking  not to exercise any lien on  the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established  by the  Ship Mortgage  Act and  any other  pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid and enforceable  first and  preferred lien upon  the
             Rig  and promptly  to furnish  to the  Trustee from time  to time
             such proof as the Trustee may  request for its satisfaction  with
             respect  to the  Owner's compliance  with the  provisions of this
             sub-clause;

       (p)   place,  and use  due diligence  to retain,  a  properly certified
             copy of this Mortgage on  board the Rig with her papers and cause
             such certified copy  of this Mortgage to be  exhibited to any and
             all persons having  business with the  Rig which might  give rise
             to  any lien thereon other than a  lien for crew's wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and in  the  master's cabin  of the  Rig  a framed  printed
             notice in plain type  in English of such size  that the paragraph
             of reading  matter shall cover  a space  not less  than 6  inches
             wide and 9 inches high reading as follows:


                                       "NOTICE OF MORTGAGE

             This Rig is covered  by a First Preferred Mortgage to CHRISTIANIA
             BANK OG KREDITKASSE,  NEW YORK  BRANCH, as  Security Trustee  for
             the  Banks defined in  the said Mortgage  under authority  of the
             United States Ship Mortgage  Act, 1920, as amended, recodified as
             46 U.S.C.  31301  et seq.  Under the terms  of the said Mortgage
             neither the  Owner nor any charterer  nor the master  of this Rig
             nor  any  other  person has  any  right,  power  or  authority to
             create, incur  or permit  to be  imposed upon this  Rig any  lien
             whatsoever  other  than for  crew's  wages,  general average  and
             salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)    any Environmental Claim which could reasonably be  expected
                    to result in damages in excess of  US$200,000 being or made
                    against  the  Owner, or  otherwise in  connection with  the
                    Rig; or

             (ii)   any Environmental Incident occurring, and keep the  Trustee
                    advised,  in writing  on such  regular  basis and  in  such
                    detail  as  the  Trustee  shall  require,  of  the  Owner's
                    response  to  such  Environmental  Claim  or  Environmental
                    Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by the  Credit  Agreement) without  the  written consent  of  the
             Trustee  having first been obtained, and any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to  be a waiver  of this provision with  respect to any
             subsequent proposed sale, mortgage  or transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the lien  it creates.  The  Owner shall not  charter
             the Rig to, or permit  the Rig to serve under any  contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or  "specially designated national"
             of  a "designated foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury  Department, 31 C.F.R. Parts 500  and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity" in  the  Libyan
             Sanctions Regulations  of the United  States Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of the  Government of Iraq" or "Iraqi  Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified  at 31  C.F.R. Part 575,  as amended, all  within the
             meaning   of   said   Regulations   or   of   any    regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter any Cuban  port for any purpose or engage  in any
             transaction  that violates  any provision of  said Regulations or
             that   violates  any  provision   of  the   Iranian  Transactions
             Regulations, 31 C.F.R.  Part 560, as amended,  the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or  violation would  (i) expose  the Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary to  law, shall not  abandon the  Rig in a  foreign port,
             shall not  engage in any  unlawful trade  or violate  any law  or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or  capture, and  shall not do,  or suffer or  permit to be done,
             anything which can or may injuriously  affect the registration or
             enrollment  of the  Rig under the  laws of the  United States and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not  bound) at any  time and as  often as may be  necessary to take any
       such  action as it  may in  the reasonable  exercise of  its discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created  by this Mortgage  and the  other Credit  Documents (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if  the Owner does not comply with  the provisions of Clause 6 or
             any of them the Administrative Agent  shall be entitled (but  not
             bound)  to effect  or  to replace  and  renew  and thereafter  to
             maintain the Insurances  in such manner  as in its  discretion it
             may  think fit and  to require that  all policies,  contracts and
             other  records relating  to the Insurances  (including details of
             any  correspondence concerning  outstanding claims)  be forthwith
             delivered  to  such  brokers  as  the  Administrative  Agent  may
             nominate and  to collect,  recover,  compromise and  give a  good
             discharge for all claims  then outstanding or thereafter  arising
             under  the  Insurances  or  any  of  them  and  to  take  over or
             institute  (if necessary using  the name of  the Owner)  all such
             proceedings in  connection therewith as the  Administrative Agent
             in  its absolute  discretion  may think  fit  and  to permit  the
             brokers through whom  the collection or recovery  is effected  to
             charge the usual brokerage therefor; and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but not bound) to arrange for the carrying  out of such
             repairs  to and/or surveys  of the  Rig as it  deems expedient or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h)  or any  of them the  Trustee shall be  entitled (but not
             bound)  to  pay  and  discharge  all  such  debts,   damages  and
             liabilities  and  all  such  tolls,   dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND TRUSTEE'S POWERS

9.01   Upon the  happening of any  of the Events of  Default specified  in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to  the effect that an Event of Default
       has occurred (and whether  prior to or after the Required  Banks having
       served on the Owner any  such notice as is referred to in Section  9 of
       the  Credit Agreement) the security constituted  by this Mortgage shall
       become immediately  enforceable and the  Trustee shall be entitled,  as
       and when it may see fit, to  put into force and exercise all or any  of
       the powers possessed by it as mortgagee  of the Rig or otherwise and in
       particular:

       (a)   to  exercise  all  the rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to take possession of the Rig  whether actually or constructively
             and/or otherwise to take control of the Rig wherever the Rig  may
             be and cause the Owner  or any other person in possession  of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal  process and without  liability of the Trustee  for
             any  losses  or damages  incurred thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered  to or  to  the order  of the  Administrative
             Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure   that  the   Administrative   Agent  collect,   recover,
             compromise  and give  good discharge  for any  and all  moneys or
             claims  for moneys  then outstanding or  thereafter arising under
             the Insurances or any Requisition Compensation  and to permit any
             brokers  through  whom  collection  or recovery  is  effected  to
             charge the usual brokerage therefor;

       (e)   to take  over or  institute (if necessary  using the name  of the
             Owner) or, to the extent lawful, procure  that the Administrative
             Agent take  over or institute all  such proceedings in connection
             with the  Rig, the Insurances, or any Requisition Compensation as
             the  Trustee  in  its  absolute  discretion  thinks  fit  and  to
             discharge,  compound, release  or compromise  claims against  the
             Owner in respect of the Rig which have given or may give rise  to
             any charge or lien on  the Rig or which are or may be enforceable
             by proceedings against the Rig;

       (f)   to  sell the  Rig  or any  share  therein with  or without  prior
             notice to  the Owner free  from any claim of  or by the  Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some  or all of the purchase price be deferred) as the Trustee in
             its absolute discretion may determine with power  to postpone any
             such sale, without  being answerable  for any loss  occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to  purchase the  Rig at any  such public auction  and to set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for the purposes aforesaid  the Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting the  Rig, and the insurance,  management, maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in all respects as  if the Trustee were the owner of  the Rig and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as  may  be incurred  by  the  Trustee  in or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental  to  the  exercise by  it  of  any  of the  powers
             aforesaid.

9.02   The Trustee shall not  be obliged to make any enquiry as  to the nature
       or sufficiency of any payment  received by it under this Mortgage or to
       make  any claim,  take any  action or  enforce any rights  and benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors, nor their  agents, managers, officers,
       employees, delegates  and advisers  shall be  liable  for any  expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with  the exercise  or  purported exercise  of  any rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall not by reason of the taking  possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or be liable  for any loss upon realization or  for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any sale  of the  Rig or  any share  therein by  the Trustee  the
       purchaser  shall not  be bound to  see or enquire  whether the power of
       sale of the Trustee has  arisen in the manner provided in this Mortgage
       and the sale shall be deemed to be within the power of  the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge the purchaser who  shall not be concerned with the  manner of
       application  of  the  proceeds of  sale  or  be in  any  way answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  All moneys received by the  Trustee (or any other Secured Creditor,  as
       the case may be) in respect of sale of the Rig or  any part thereof, in
       respect of recovery under the Insurances  or in respect of  Requisition
       Compensation, shall be applied in the following manner:

       (i)   first, to  the payment of  all amounts owing  the Trustee of  the
             type described in clauses (ii) and (iii) of Recital E;

       (ii)  second,  to  the  extent  moneys  remain  after  the  application
             pursuant  to the  preceding clause  (i), an  amount equal  to the
             outstanding  Obligations shall  be paid to  the Secured Creditors
             as  provided  in  Clause  10.01(c), with  each  Secured  Creditor
             receiving an  amount equal to such Obligations  held by it or, if
             the   proceeds  are  insufficient  to   pay  in   full  all  such
             Obligations, its Pro Rata  Share (as defined below) of the amount
             remaining to be distributed; and

       (iii) third,  to  the  extent  moneys  remain   after  the  application
             pursuant  to the  preceding clauses (i)  and (ii),  and following
             the termination  of this  Mortgage pursuant  to Clause 3.01,  any
             surplus  then  remaining shall  be  paid to  the  Owner, subject,
             however, to  the rights of the  holder of any then  existing Lien
             of which the Trustee has actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then  unpaid amount of such Obligations  owing to or held by such
             Secured  Creditor  and  the  denominator of  which  is  the  then
             outstanding  amount of  all  such Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee shall  be entitled  to request each  Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed  to it  and  shall be  entitled to  reply  upon the  amounts
             stated therein in making such distribution.

       (c)   All payments required to  be made to Secured  Creditors hereunder
             shall be  made  to  the Administrative  Agent  under  the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i) the Administrative Agent under the  Credit Agreement and (ii)
             the   Secured   Creditors  for   a   determination   (which   the
             Administrative  Agent  and   each  Secured  Creditor,   by  their
             acceptance  of the benefits of  this Mortgage  shall be obligated
             to provide  upon  request  of the  Trustee)  of  the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge (including  by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in furnishing  information  pursuant  to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be entitled to assume  that no obligations other than  principal,
             interest and regularly  accruing fees  are owing  to any  Secured
             Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:

       (a)   perfecting or protecting the security created (or  intended to be
             created) by this Mortgage; or

       (b)   preserving  or protecting any  of the rights  of the  Trustee and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the  security constituted by this  Mortgage and the
             covenants and obligations  of the Owner under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner,  by way of security  and in order  more fully to  secure the
       performance   of  the  Obligations,  hereby  irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required)  registering in its name all  documents which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage shall have  become immediately  enforceable pursuant  to
             Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise  of such power as is referred to  in Clause 12.01(a) by or
       on  behalf of the  Trustee shall  not put any  person dealing  with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor shall  such person  be in  any way  affected by  notice
       that this Mortgage  has not become enforceable and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on  the  release of  the Rig  from the  security created  by this
             Mortgage,

       and each of  the Secured Creditors and each such  agent or attorney may
       retain and  pay all sums in  respect of the same  out of money received
       under  the powers  conferred  by  this  Mortgage.    All  such  amounts
       recoverable by such Secured Creditors or  such agent or attorney  shall
       be recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees,  attorneys and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of them, by reason  of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including wrongful death) or property damage  (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement reached;  or  (d)  any violation  of  laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any  applicable law or regulation, and  whether pursuant to a
       judgment being made or  registered against the Owner or the liquidation
       of  the Owner  or  for  any  other  reason, any  payment  under  or  in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than the currency  in which such payment is due  under or in connection
       with  this Mortgage  (the "contractual  currency"), then  to the extent
       that the amount  of such payment actually received by the Trustee, when
       converted into the contractual  currency at the rate of exchange, falls
       short of the amount due under or in connection  with this Mortgage, the
       Owner, as  a separate and  independent obligation, shall indemnify  and
       hold harmless the  Trustee against the  amount of such shortfall.   For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which the Trustee is able on  the date of such payment (or, if it is
       not practicable  for the Trustee  to purchase the contractual  currency
       with the payment currency  on the date of such payment,  at the rate of
       exchange as soon  afterwards as  is practicable for  the Trustee to  do
       so) to purchase the  contractual currency with the payment currency and
       shall take  into account any premium  and other costs  of exchange with
       respect thereto.

14.    EXPENSES

14.01  The Owner shall  pay to any Secured Creditor on  demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the   negotiation,  preparation  and   execution  of  the  Credit
             Agreement, the Subsidiary Guaranty  and the Credit Documents  (or
             any of them); and/or

       (b)   the  preserving  or enforcing  of, or  attempting to  preserve or
             enforce, any  of  its  rights  under the  Credit  Agreement,  the
             Subsidiary Guaranty or the Credit Documents (or any of them).

14.02  The  Owner shall  pay to  the Trustee  and the Administrative  Agent on
       demand  all costs, fees  and expenses (including,  but not  limited to,
       legal  fees and  expenses) and  Taxes thereon  incurred by  any Secured
       Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of  the Credit  Agreement, the Subsidiary  Guaranty or  the
             Credit  Documents  (or  any of  them)  requested  by  the  Owner,
             necessary or  advisable under  applicable law or  relating to the
             syndication of the Facility,  or initiated during the  occurrence
             and continuation of an Event of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the  Credit  Agreement, the  Subsidiary Guaranty  and  the Credit
             Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty and the Credit  Documents (or any of  them) may be subject  or
       give  rise and shall  indemnify the Trustee  on demand  against any and
       all  liabilities with  respect  to  or  resulting  from  any  delay  or
       omission on the part of the Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All  notices to the Trustee hereunder shall  be in writing and shall be
       made to the following address:

                   Christiania Bank og Kreditkasse, New York Branch
                   11 West 42nd Street
                   7th Floor
                   New York, New York  10036
                   Telefax:  (212) 827-4888
                   Attention:  Loan Administration

       All  other notices  shall  be made  to  the addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors  and permitted assigns  and references  in this  Mortgage to
       any of them shall be construed accordingly.

16.02  The Owner  may not assign  or transfer  all or any  part of  its rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.04 of the  Credit Agreement, each Bank  has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations  under the Credit Agreement  on the terms therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this  Mortgage is  Three Hundred Million  U.S. Dollars (US$300,000,000)
       of  principal  plus  interest,  fees, commissions  and  performance  of
       mortgage  covenants.  The  interest of  the Owner in  the Rig  is 100%.
       The  interest of the Trustee in the  Rig is 100%.  The date of maturity
       is  November 13,  2001, and  the discharge  amount is  the same  as the
       total amount plus such  other sums as shall be payable by  the Owner to
       the Banks under the Credit Agreement or the Subsidiary Guaranty.

18.    MISCELLANEOUS

18.01  If at  any time any one  or more of the provisions  in this Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability of  the
       remaining  provisions of this Mortgage shall not be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time and  from time to time, may delegate by  power
       of attorney or in any other manner to any person or persons  all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such delegation may  be made upon such terms and  subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in  any way liable or responsible  to the Owner for  any loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for in this Mortgage shall, in  the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The Owner agrees that the  Trustee shall have the liberty but shall not
       be obliged  to take any  proceedings in  the courts  of any country  to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose of any  proceedings for such enforcement the  Owner
       hereby submits to the jurisdiction of the courts of  any country of the
       choice of the Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place  the Rig shall be  found lying and for  the purpose of any action
       which the Trustee may  bring before the courts of such  jurisdiction or
       other judicial authority  and for the purpose  of any action which  the
       Trustee may bring against the Rig, any writ, notice, judgment  or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner  agrees that  should the  Trustee  bring a  legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out of or  in connection with  this Mortgage, no immunity  from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without  limitation,   suit,  attachment   prior  to  judgment,   other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of the  Owner or with respect of  its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the  Owner hereby consents generally in respect  of any legal action or
       proceedings arising out of  or in connection with this Mortgage  to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever  of any order or judgment which may be made or given in such
       action or proceedings.


IN WITNESS  whereof the Owner has caused this Mortgage  to be executed the day
and year first before written.

READING & BATES EXPLORATION CO.


By_____________________________________
    Name:  T.W. Nagle
    Title:  Vice President and Treasurer



                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle  to me known  who being  by me  duly sworn  did depose  and say  that he
resides  at  13307 Tosca  Lane, Houston,  TX;  that he  is Vice  President and
Treasurer for  READING & BATES EXPLORATION  CO., the corporation  described in
and which  executed the  foregoing instrument;  and that  he  signed his  name
thereto by order of the Board of Directors of READING & BATES EXPLORATION CO.



                                 ________________________
                                 Notary Public


                                                                Exhibit 10.123


                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996

                         READING & BATES DRILLING CO.

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee

                                 RANDOLPH YOST

==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTERPAGE


      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . . . 9 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
      9     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS . . . . . . . .  19 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

      ACKNOWLEDGEMENT OF MORTGAGE
      EXHIBIT 1 FORM OF CREDIT AGREEMENT

==============================================================================

THIS FIRST  PREFERRED MORTGAGE (this  "Mortgage") is made  on the 13th  day of
November, 1996

BY

(1)    READING  & BATES  DRILLING  CO.,  an  Oklahoma corporation  having  its
       principal offices at  901 Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"), 

IN FAVOR OF

(2)    CHRISTIANIA  BANK OG KREDITKASSE, NEW YORK  BRANCH, a Norwegian banking
       corporation  having its office  at 11  West 42nd Street,  New York, New
       York, as  security trustee for  the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner  is the sole owner  of the whole of  the jack-up drilling rig
       RANDOLPH YOST documented under the laws  and flag of the United  States
       of  America with Official Number 601699 of  4,701 gross registered tons
       and 4,701 net registered tons (the "Rig").

(B)    By a  Credit Agreement  dated  as of  November 13,  1996 (as  modified,
       amended or  supplemented from  time to  time,  the "Credit  Agreement")
       among  (i)  Reading  &  Bates   Corporation,  a  Delaware  corporation,
       ("Holdings"),  (ii)  the  Owner, as  borrower,  (iii)  the banks  party
       thereto (the "Banks"),  (iv) Credit Lyonnais New York Branch and Banque
       Indosuez, as documentation agents (the  "Documentation Agents") and (v)
       the Trustee,  as administrative  agent, arranger  and security  trustee
       (in  such capacity,  the  "Administrative Agent")  (the  form of  which
       Credit  Agreement  together  with  Exhibit B  thereto  but  without the
       remaining attachments is attached hereto  as Exhibit 1), it  was agreed
       among other  things that  the Banks would  make available to  the Owner
       upon the  terms and conditions  therein described a reducing  revolving
       credit facility (the  "Facility") in an  aggregate amount  at any  time
       outstanding   of   Three   Hundred    Million   United States   Dollars
       (US$300,000,000),  providing for the making  of Loans  and the issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The  obligations  of  the  Owner  with  respect  to  the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the promissory  notes of the  Owner payable to  the order  of
       the respective Banks  (each a "Note" and collectively the "Notes") (the
       form of which is attached as Exhibit B to the Credit Agreement). 

(D)    This Mortgage is made for the benefit of the  Trustee to secure (i) the
       full and  prompt payment when due of (x)  the principal of and interest
       on the Notes issued,  and Loans made,  under the Credit Agreement,  and
       all reimbursement obligations and Unpaid  Drawings with respect to  the
       Letters of  Credit issued under the Credit Agreement  and (y) all other
       obligations    and   indebtedness    (including   without   limitation,
       indemnities, Fees and  interest thereon) of  the Owner  to the  Secured
       Creditors (as hereinafter  defined), whether now existing  or hereafter
       incurred  under,  arising out  of  or  in  connection  with the  Credit
       Agreement   and  the   other   Credit  Documents   including,   without
       limitation, this  Mortgage and  the due  performance and  compliance by
       the Owner  with all of  the terms, conditions  and agreements contained
       in  the Credit  Agreement  and the  other  Credit Documents  including,
       without limitation,  this Mortgage; (ii)  any and all  sums advanced by
       the  Trustee  in  order  to preserve  the  Collateral  (as  hereinafter
       defined) or preserve  its security interest in the Collateral; (iii) in
       the event  of any proceeding for  the collection or enforcement  of any
       indebtedness,  obligations, or liabilities of the  Owner referred to in
       clause (i) above, after an Event of Default  shall have occurred and be
       continuing,  the  reasonable  expenses of  the  Trustee  of  re-taking,
       holding, preparing for sale  or lease,  selling or otherwise  disposing
       of or realizing  on the Collateral, or  of any exercise by  the Trustee
       of its  rights hereunder, together  with reasonable attorneys' fees  of
       counsel to the  Trustee and court costs;  and (iv) all amounts  paid by
       any  Indemnitee  as  to  which   such  Indemnitee  has  the   right  to
       reimbursement under Clause 13  of this Mortgage (all  such obligations,
       liabilities, sums and  expenses referred to in clauses (i) through (iv)
       above being  collectively referred  to as  the "Obligations").   It  is
       acknowledged   and  agreed   that  the   "Obligations"   shall  include
       extensions  of credit of the types described above, whether outstanding
       on  the date of this Mortgage  or extended from time  to time after the
       date of this Mortgage.  

(E)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of  the Banks agreeing,  at the request of  the Owner, to
       make the Facility available to the Owner under the terms of the  Credit
       Agreement and  as a condition thereto  and for other  good and valuable
       consideration provided  by  the Banks  (the  sufficiency of  which  the
       Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In  this Mortgage unless the context  otherwise requires, the following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank" means any  lender listed  from time to  time on  Annex I to  the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the same meaning for such term as set forth  in
       the Credit Agreement;

       "Credit  Agreement" means  the Credit  Agreement, dated  as of November
       13,  1996, among  Holdings,  the Owner,  the  Banks, the  Documentation
       Agents and  the Administrative Agent  first referred to  in Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents"  shall have the meaning  for such term as  set forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no Letters of Credit  remain outstanding and the  Loans and the  Unpaid
       Drawings,  together with interest, fees  and all  other obligations are
       paid in full;

       "Default   Rate"  shall  mean  the   rate  of  interest  calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or  authorization required  under  applicable Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices of  noncompliance  or  violation,  investigations  (other  than
       internal  reports prepared  by  Holdings  or  any of  its  Subsidiaries
       solely  in the ordinary  course of  such Person's  business and  not in
       response  to any  third  party  action  or  request  of  any  kind)  or
       proceedings relating in any way to any  Environmental Law or any permit
       issued,  or  any  approval  given,  under  any such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims by  governmental  or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims    by   any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any release  of  Environmentally
       Sensitive  Material  from   the  Rig,  (ii)  any   incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the Rig  and which  involves collision  between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or otherwise liable (in whole  or in part) or (iii) any  incident
       in which Environmentally Sensitive  Material is released from a  vessel
       other than the Rig and where the Rig  is actually or potentially liable
       to  be arrested  as  a result  and/or where  the  Owner is  actually or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking,  leaching,  dumping, emitting,  escaping,  emptying,  seeping,
       placing and  the like,  into  or upon  any  land or  water or  air,  or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule of common  law now or hereafter in effect  and in each case as
       amended,  and any  judicial  or administrative  interpretation thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including,  without limitation,  CERCLA; RCRA;  the Federal
       Water Pollution Control Act, as amended, 33 U.S.C.  1251 et seq.;  the
       Toxic Substances Control Act,  15 U.S.C.  7401 et seq.;  the Clean Air
       Act, 42 U.S.C.  7401 et  seq.; the Safe Drinking Water Act, 42  U.S.C.
       3808 et seq.;  the Oil Pollution  Act of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall have the  same meaning for such  term as set forth in  the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation,  transformers  or other
       equipment   that  contained,   electric  fluid   containing  levels  of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous waste,"  "restricted  hazardous waste,"  "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import, under  any applicable  Environmental Law;  and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect  of the Rig or otherwise by  the Owner (whether
       in the sole name of  the Owner or in the  joint names of the  Owner and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest Period"  shall have the  same meaning  for such  term as  set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of Credit" shall  have the  same meaning for  such term as  set
       forth in Section 2.01(a) of the Credit Agreement; 

       "Loan(s)" shall have the  same meaning  for such term  as set forth  in
       the Credit Agreement;

       "Major Casualty" means any  casualty to the Rig in respect  whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means each promissory note  of the Owner referred to in  Recital
       (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (D) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C.
       2701 et seq.), as amended;

       "Other Rigs"  means,  individually or  collectively,  each of  (i)  the
       jack-up  drilling  rig  D.  R.   STEWART  owned  by  Reading   &  Bates
       Exploration Co. ("R&B  Exploration") documented under the laws and flag
       of  the  United States  with  Official  Number  626904  of 6,494  gross
       registered  tons  and  5,834 net  registered  tons;  (ii) the  offshore
       drilling rig W. D.  KENT owned by R&B Exploration  documented under the
       laws  and flag  of the  United States  with  Official Number  583169 of
       5,383 gross  registered tons and  4,185 net registered  tons; (iii) the
       offshore drilling rig  CHARLEY GRAVES owned by Reading and Bates Borneo
       Drilling  Co., Ltd. documented under the  laws and flag of the Republic
       of Panama  with Patente  Number  6618-76-CH of  5,829 gross  registered
       tons and 1,748 net registered  tons; (iv) the jack-up drilling  rig RON
       TAPPMEYER owned by  Reading & Bates (A)  Pty Ltd. documented  under the
       laws and flag  of Australia with Official Number 855213 of 11,455 gross
       registered  tons   and  3,436  net  registered   tons;  (v)  the  semi-
       submersible drilling rig  J. W. McLEAN  owned by  the Owner  documented
       under the  laws and flag of the Republic  of Panama with Patente Number
       25384-PEXT of  15,453 gross  registered tons  and 4,636 net  registered
       tons; (vi) the semi-submersible drilling  rig RIG 41 owned by the Owner
       documented under  the laws and flag of the  Republic of Panama with the
       Patente Number  to  be assigned  on the  date  hereof of  10,078  gross
       registered  tons  and 3,024  net  registered  tons; (vii)  the  jack-up
       drilling rig HARVEY  H. WARD owned  by HRB  Rig Corporation  documented
       under the laws and  flag of the United States of  America with Official
       Number 642693 of 4,121 gross  registered tons and 3,079  net registered
       tons;  (viii)  the jack-up  drilling  rig  F.  G.  McCLINTOCK owned  by
       Reading &  Bates Offshore, Limited  documented under the  laws and flag
       of the United States  of America with  Official Number 562059 of  5,525
       gross registered tons  and 1,657 net  registered tons;  (ix) the  semi-
       submersible  drilling rig  JACK  BATES owned  by  the Owner  documented
       under the laws and flag of  the United States of America with  Official
       Number  906283  of  19,928   gross  registered  tons  and  14,948   net
       registered tons; (x) the jack-up drilling rig J.  T. ANGEL owned by the
       Owner  documented under  the  laws and  flag  of the  United States  of
       America with Official  Number 651645 of 4,186 gross registered tons and
       3,090  net registered  tons;  (xi) the  jack-up  drilling rig  ROGER W.
       MOWELL owned  by the Owner  documented under the  laws and flag of  the
       United States of  America with Official  Number 645360  of 4,121  gross
       registered  tons  and  3,079 net  registered  tons;  (xii) the  jack-up
       drilling rig  GEORGE H.  GALLOWAY owned  by Reading  & Bates  Offshore,
       Limited documented  under the  laws and  flag of  the United  States of
       America with Official  Number 651646 of 3,729 gross registered tons and
       2,496 net registered  tons; and (xiii) the  jack-up drilling rig  C. E.
       THORNTON to be owned  by HRB Rig Corporation documented under  the laws
       and flag of  the United States of  America with Official Number  673210
       of 6,096 gross registered tons and 6,096 net registered tons;

       "Permitted  Liens"  means: (1)  liens incident  to expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being contested in  good faith, provided
       such  liens are not  in excess  of U.S.$5,000,000.00, and  if in excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative  Agent, provide a bond or other security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable;  (3) liens  for taxes, assessments,  governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested  in good  faith, provided  such  liens are  not in  excess of
       U.S.$5,000,000.00,  and if  in excess  thereof,  then the  Owner shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security satisfactory to the  Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements  of Clause 6 hereof  (except that no  lien shall be deemed
       not  covered by insurance to the extent  insurance in force would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant to any  judgment or  to an order  of attachment, distraint  or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the  payment or  discharge  of  which  provisions satisfactory  to  the
       Administrative Agent have  been made as evidenced by the Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to the lien of this Mortgage  or (ii) constitute a maritime
       lien which would in any event be entitled as  such to priority over the
       Mortgage  under the  United States  shipping laws  or other  applicable
       laws relating to the  Rig's trading pattern.   Nothing herein shall  be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection  and indemnity  risks"  means the  usual  risks covered  by
       protection   and   indemnity  associations   of   international  repute
       including the proportion  not recoverable  in case  of collision  under
       the ordinary  running-down clause (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means all  moneys  or  other  compensation
       payable during the Credit  Facility Period by reason of requisition for
       title  or other  compulsory acquisition  of the  Rig otherwise  than by
       requisition for hire;

       "Rig"  means the vessel  described in Recital  (A) hereto  and includes
       any  share  or interest  therein  and  her engines,  machinery,  boats,
       tackle,  outfit,  spare  gear,   fuel,  consumable  or  other   stores,
       belongings and appurtenances  whether on  board or  ashore and  whether
       now owned  or hereafter acquired  (but excluding  therefrom any  leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit Issuer and the Administrative Agent under  and as defined in the
       Credit Agreement;

       "Security Documents" shall have  the same meaning for such  term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating),  pledge, lien, hypothecation, assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes"  shall have the same meaning for  such term as set forth in the
       Credit Agreement;

       "Total Commitment"  shall have the  same meaning for  such term as  set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive, arranged,  agreed, or
       compromised Total  Loss of the  Rig; (b) the  requisition for  title or
       other compulsory acquisition  or forfeiture  of the Rig  otherwise than
       by  requisition for hire; (c)  the capture,  seizure, arrest, detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting  to  act on  behalf  of  any government  unless  the  Rig be
       released from such capture, seizure, arrest or detention  within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid Drawing"  shall have  the same  meaning for  such  term as  set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard  form of  English marine  policy  by the  free of  capture and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified,  all references  to  Clauses are  to  clauses of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,  words  denoting   the
             singular number shall include the plural and vice versa;

       (c)   references    to   persons    include   bodies    corporate   and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the  Owner is the sole legal and beneficial owner of the whole of
             the  Rig  and neither  the  whole nor  any  share in  the  Rig is
             subject to any  Security Interest (except for Permitted Liens and
             the lien of this Mortgage);

       (b)   the  Owner has  not sold  or transferred,  or agreed  to sell  or
             transfer, title to the Rig or any share therein; 

       (c)   the Owner  is a corporation  duly organized and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the Owner  has full power and  authority (i) to register  the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements  relating   to  the   ownership,  registration   and
             operation of the Rig; 

       (f)   the  Owner  has  taken  all  necessary  action  to  authorize the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner enforceable against the Owner in accordance with  its terms
             (except  to   the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency,  moratorium or other laws  of general
             application  relating  to   or  affecting   the  enforcement   of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's  National Vessel  Documentation Center  in Falling
             Waters, West Virginia will  create a legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any  respect (i) any law or  regulation of any governmental or
             official  authority  or body,  or  (ii) any  of  the constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the  Owner is a party or  which is binding upon  the Owner or any
             of its assets;

       (h)   all consents, licenses, approvals and authorizations  required in
             connection  with  the   entry  into,  performance,  validity  and
             enforceability   of   this   Mortgage   and    the   transactions
             contemplated hereby and  thereby have  been obtained  and are  in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage, it is  not necessary  for the legality,  validity,
             enforceability  or  admissibility  in evidence  of  this Mortgage
             that it  or any document  relating thereto be registered,  filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or that any stamp, registration or similar taxes  be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws and  all Environmental  Approvals relating  to the  Rig, its
             operation and management  and the business  of the Owner  (as now
             conducted and  as reasonably anticipated to  be conducted  in the
             future) have been obtained or complied with;

       (k)   no Environmental Claim  has been  made or threatened  against the
             Owner, the Approved Manager  or otherwise in connection  with the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be expected to  result, in  an Environmental Claim  in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall survive the execution of this Mortgage and shall  be deemed to be
       repeated at the time of the making  of each Loan and at the time of the
       issuance  of  each Letter  of Credit,  with  respect to  the  facts and
       circumstances  existing at  each  such time,  as if  made at  each such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto  the Trustee, its successors and assigns,  the whole of the Rig TO
       HAVE  AND TO HOLD the same unto the Trustee, its successors and assigns
       forever upon  the terms  herein set  forth for the  enforcement of  the
       Obligations.

       Provided only and the condition  of these presents is such that  if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been  performed in  full as  and  when the  same shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and  conditions contained in the  Subsidiary Guaranty and this Mortgage
       expressed or  implied to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then  these presents  and the  rights hereunder  shall cease, determine
       and  be void otherwise to  be and remain in full  force and effect and,
       in such event, the  indenture Trustee agrees  to execute and record  at
       the expense  of  the  Owner,  all  such  documents  as  the  Owner  may
       reasonably require to discharge this Mortgage.  
       Notwithstanding anything  to  the contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that  if any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in relation  to the Rig and  none of the Secured Creditors  shall
       be under any obligation  of any kind  whatsoever in respect thereof  or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify   the  Secured  Creditors  for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges  or other  moneys as  are stated  in this  Mortgage to be
             payable by the  Owner to  or recoverable  from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to  indemnify any of  the Secured Creditors  at the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses,  costs, duties, fees, charges or other moneys referred to
             in Clause 4.01(a) from the  date on which  demand is made by  any
             Secured  Creditor as the case may be, for payment by the Owner of
             the  relevant expense,  claim, liability, loss,  cost, duty, fee,
             charge or other money  incurred by any Secured Creditor for which
             the  Owner is  responsible (both  before  and after  any relevant
             judgment) at the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing to any Secured Creditor under  this Mortgage and the  other
             Credit Documents  to which the  Owner is or is  to be a  party at
             the times and in the manner specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations and  that  the  security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way  be prejudiced or affected  by any of  the other Security
             Documents;

       (c)   the Trustee shall not  have to wait for the Administrative Agent,
             the Banks or the  Letter of Credit Issuer  to enforce any of  the
             other Security  Documents before  enforcing the security  created
             by this Mortgage;

       (d)   no  delay or  omission on the  part of the  Trustee in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or remedy  or be construed  as a waiver thereof  nor
             shall any single  or partial exercise of any such right, power or
             remedy preclude any  further exercise thereof or  the exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given in  writing and then only for  the purpose and
             upon the terms for which it is given.

5.02   Any settlement  or discharge under  this Mortgage  between the  Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being avoided or set-aside or ordered to  be refunded or reduced
       by  virtue  of  any  provision  or  enactment  relating to  bankruptcy,
       insolvency, administration or liquidation for  the time being in  force
       and, if such  condition is not satisfied, the Trustee shall be entitled
       to recover from the Owner  on demand the value of such  security or the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be  affected  by   any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair, affect  or discharge such rights  and security, in whole  or
       in part,  including without limitation, and whether  or not known to or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:

       (a)   any time  or waiver granted  to the Credit  Parties or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of the  Credit  Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit  Documents (other than this  Mortgage) or  any other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity  or   frustration   of   any
             obligations  of any  of the  Credit Parties  or any  other person
             under  the Credit  Agreement, any of  the other  Credit Documents
             (other than this Mortgage) or any other document or security.

5.04   Until the Obligations have been satisfied  in full to the  satisfaction
       of  the Trustee,  the Owner  shall not  by virtue  of any  payment made
       hereunder  on  account  of  the  Obligations   or  by  virtue  of   any
       enforcement  by  the  Trustee of  its  rights  under,  or  the security
       constituted  by,  this  Mortgage  or  by  virtue  of  any  relationship
       between,  or  transaction involving,  the Owner  and  Holdings (whether
       such relationship or  transaction shall constitute the Owner a creditor
       of  Holdings, a guarantor  of the  obligations of  Holdings or  a party
       subrogated to  the  rights  of others  against  Holdings  or  otherwise
       howsoever and whether or  not such relationship or transaction shall be
       related  to,  or  in  connection  with,  the  subject  matter  of  this
       Mortgage):

       (a)   exercise any  rights of  subrogation in  relation to any  rights,
             security or moneys held  or received or receivable by the Secured
             Creditors or any other person; or

       (b)   be entitled  to  exercise  any right  of  contribution  from  any
             co-surety liable in respect of such  moneys and liabilities under
             any other guaranty, security or agreement; or

       (c)   exercise  any right  of set-off or  counterclaim against Holdings
             or any such co-surety; or

       (d)   receive, claim or have the benefit of any payment,  distribution,
             security or indemnity from Holdings or any such co-surety; or

       (e)   unless  so directed by the Trustee  (when the Owner will prove in
             accordance  with  such  directions),  claim  as   a  creditor  of
             Holdings or any such co-surety in competition with the Trustee.

       The Owner  shall hold in  trust for  the Trustee  and forthwith pay  or
       transfer  (as appropriate)  to the Trustee  any such payment (including
       an amount  equal to any such set-off),  distribution or benefit of such
       security, indemnity or claim in fact received by it.

5.05   The  Owner unconditionally  and  irrevocably agrees  that  if any  sums
       hereby secured are not recoverable on the  basis of a guaranty (whether
       by  reason of legal limitation, illegality, disability or incapacity on
       or  of Holdings or the  Owner or any  other person or  by reason of any
       other  fact  or   circumstance,  and  whether   or  not  known   to  or
       discoverable by the Owner,  Holdings, the Trustee or any other person),
       then the Owner will,  as a separate and independent stipulation  and as
       a primary obligor, pay  to the Trustee on  demand an amount or  amounts
       equal to the amount or  amounts which the Owner would have  been liable
       to pay but for  such irrecoverability and will on  demand indemnify the
       Trustee against  any loss  or  liability suffered  or  incurred by  the
       Secured Creditors or any of them as a result of such irrecoverability.

6.     INSURANCE

6.01   The Owner covenants  with the  Trustee throughout  the Credit  Facility
       Period that:

       (a)   The  Owner shall, at  its own  expense, when and  so long  as any
             Obligations  remain  outstanding, insure  the  Rig  and keep  her
             insured, or cause the Rig  to be insured, in lawful money  of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and indemnity  risks,  pollution  liability, and  war
             risks), in such  form (including without limitation, the  form of
             the loss  payable clause  and the designation  of named assureds)
             and  with  such  first class  insurance  companies, underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect   to  hull   and  machinery/increased   value  insurance,
             including war risk, the  Owner shall insure the Rig and  keep her
             insured, or cause  the Rig to be insured, for  an amount which is
             at least  the full  commercial value  of the  Rig, and  when such
             amount is aggregated  with the amount of such  insurance coverage
             on  the Other Rigs, such aggregate amount  shall be at least 110%
             of the Total Commitment.   The Rig shall  in no event be  insured
             for an amount less than  the agreed valuation as set forth in the
             applicable marine  and war risk  policies.  Such insurance  shall
             cover  marine and war  risk perils, on  hull and  machinery, with
             deductibles not in excess of US$500,000 (such deductibles not  to
             apply in  the  case of  Total  Loss of  the  Rig), and  shall  be
             maintained  in  the broadest  forms  available  in the  American,
             British  and  Scandinavian insurance  markets  or  in such  other
             major  international   markets  reasonably   acceptable  to   the
             Administrative Agent.  The Owner shall  maintain, or cause to  be
             maintained,  protection and  indemnity  or equivalent  insurance,
             including  war  risk  protection   and  indemnity  coverage   and
             coverage against pollution liability, in an amount  not less than
             US$100,000,000   (or,  with   respect   to  pollution   liability
             coverage,  such greater amount  as may be  required from  time to
             time by  the  Oil  Pollution Act  1990,  or  other  Environmental
             Laws),  as and  when applicable  to the  Rig and  its operations,
             through   underwriters   or  associations   acceptable   to   the
             Administrative Agent.  In addition, the  Owner shall, at its  own
             expense,  furnish  to  the  Administrative  Agent  a  mortgagee's
             single interest policy providing coverage  which, when aggregated
             with  the   mortgagee's  interest  insurance   furnished  to  the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an amount equal  to at least 110% of the  aggregate amount of the
             Total  Commitment  (or  in  lieu  of  such  mortgagee's  interest
             insurance  Owner  shall cause  the  hull  and machinery/increased
             value insurance  to  be endorsed  to  afford breach  of  warranty
             coverage for  the benefit  of  the Administrative  Agent).   Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies for  the benefit  of the  Administrative Agent shall  be
             maintained  in  the  broadest  form available  in  the  American,
             British  and  Scandinavian markets  or other  major international
             markets   acceptable   to  the   Administrative   Agent   through
             underwriters  acceptable to  the Administrative  Agent.   The Rig
             shall not operate  in or proceed into  any area then excluded  by
             trading  warranties  under  its  marine  or   war  risk  policies
             (including  protection  and  indemnity)  without   obtaining  any
             necessary   additional  coverage,   satisfactory   in  form   and
             substance, and  evidence  of which  shall  be furnished,  to  the
             Administrative Agent.

       (b)   The   policy  or  policies  of   insurance  shall  be  issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and  insuring   covenants   satisfactory  to   the
             Administrative Agent, and shall  be kept in full force and effect
             by the Owner so long as any  Obligations remain outstanding.  All
             such  policies,  binders and  other  interim insurance  contracts
             shall be executed and issued in the name of  the Owner and shall,
             to the extent  required herein, provide  that loss be  payable to
             the Administrative  Agent for  distribution by it  to itself, the
             Banks  and the  Owner as  their interests  may appear,  and shall
             provide for at least  ten days' prior notice  to be given to  the
             Administrative  Agent by  the underwriters or  association in the
             event of cancellation  or the  failure of  the Owner  to pay  any
             premium or call which  would suspend coverage under the policy or
             the payment of a  claim thereunder.  The Administrative Agent and
             the Trustee shall  be named as  co-assureds on all  such policies
             and  insurance   contracts,   but   without  liability   of   the
             Administrative  Agent  or  the  Trustee for  premiums  or  calls.
             Certified  copies of all such policies, binders and other interim
             insurance  contracts shall  be deposited  with the Administrative
             Agent.  Originals shall also be provided  upon the request of the
             Administrative   Agent.     The  Owner   shall  furnish   to  the
             Administrative Agent annually a detailed report signed by a  firm
             of marine insurance  brokers satisfactory  to the  Administrative
             Agent as  to the insurance maintained  in respect of  the Rig, as
             to their opinion as to  the adequacy thereof and as to compliance
             with the provisions of this Clause 6.01.

             Unless otherwise required by  the Administrative Agent by  notice
             to the underwriters, although the following  insurance is payable
             to the Administrative Agent,  (i) any loss under any insurance on
             the  Rig with respect  to protection and  indemnity risks  may be
             paid directly to the Owner  to reimburse it for any loss,  damage
             or expense incurred  by it  and covered by  such insurance or  to
             the person to  whom any liability  covered by such  insurance has
             been incurred  and (ii) in  the case  of any  loss (other than  a
             loss covered  by (i) above or by the  next following paragraph of
             this Clause 6.01(b)) under  any insurance with respect to the Rig
             involving  any  damage  to the  Rig,  the  underwriters  may  pay
             directly  for the  repair, salvage or  other charges involved or,
             if the Owner shall have  first fully repaired the damage  or paid
             all  of  the salvage  or  other charges,  may  pay  the Owner  as
             reimbursement therefor;  provided, however,  that if  such damage
             involves a before deductible loss in  excess of US$1,000,000, the
             underwriters shall not make such payment  without first obtaining
             the  written consent  thereto of the  Administrative Agent (which
             consent shall  not be unreasonably withheld).   Any  loss covered
             by this paragraph which is paid  to the Administrative Agent  but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the Administrative Agent to, or as directed  by, the Owner and
             all  other payments to the Administrative Agent of losses covered
             by this  paragraph shall be applied  by the  Administrative Agent
             in accordance with Clause 10.01.

             In  the event  of  an  actual or  constructive  Total Loss  or  a
             compromised constructive Total Loss or requisition  of title, all
             insurance payments therefor shall  be paid to the  Administrative
             Agent.    The  Owner  shall  not   declare  or  agree  with   the
             underwriters  that  the Rig  is  a  constructive or  compromised,
             agreed  or  arranged constructive  Total Loss  without  the prior
             written consent of the Administrative Agent.

       (c)   In the event of an actual or constructive Total  Loss of the Rig,
             the  Administrative  Agent  shall  retain out  of  the  insurance
             payments received on account  of such loss any  sum or sums  that
             shall be  or become  owing  to the  Secured  Creditors under  the
             Security Documents,  whether or  not  the same  be  then due  and
             payable, together with accrued  interest and the cost, if any, of
             collecting the  insurance, and  pay  the balance  as provided  in
             Clause 10. 

       (d)   The Owner shall comply with and satisfy all  of the provisions of
             any applicable law, regulation, proclamation  or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will  maintain, or cause  to be maintained, all  certificates
             or other evidence of financial responsibility as may  be required
             by any such  law, regulation, proclamation or  order with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The Owner shall renew all insurances as they expire  and so as to
             insure that there is  no gap in coverage, keep the Administrative
             Agent advised of the  progress of such renewals, and procure that
             the   insurers  shall   promptly  confirm   in  writing   to  the
             Administrative Agent as and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or  other  sums payable  in  respect  of  all such
             insurances and produce all relevant receipts  when so required by
             the Administrative Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner  shall not  employ the  Rig or  suffer  the Rig  to be
             employed  otherwise than  in  conformity with  the  terms of  the
             instruments   of  insurance   aforesaid  relative   to  the   Rig
             (including any warranties,  express or implied,  therein) without
             first obtaining  the consent of  the insurers to such  employment
             and complying  with  such requirements  as  to extra  premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants  with  the  Trustee  that throughout  the  Credit
       Facility Period the Owner will:

       (a)   maintain its  existence as  a corporation  in good standing  duly
             organized under the laws of the State of Oklahoma;

       (b)   keep  the Rig  documented in its  name as a  United States vessel
             and to do or allow to be done nothing whereby  such documentation
             may be forfeited or imperilled;

       (c)   not without  the  previous consent  in  writing of  the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig in  a good and efficient state of  repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  Self-Elevating   Drilling  Unit)  the   American  Bureau  of
             Shipping free  of recommendations  and qualifications and  change
             of class,  save those notified to and approved  in writing by the
             Trustee  and so  as  to comply  with  all  laws, regulations  and
             requirements  (statutory   or  otherwise)  from   time  to   time
             applicable to vessels documented under the  laws and flag of  the
             United   States  and   applicable  to  vessels   trading  to  any
             jurisdiction to which the Rig may,  subject to the provisions  of
             this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost parts or  equipment be effected  in such manner (both  as
             regards workmanship and quality of materials) as to  not diminish
             the  value of the Rig and not  to remove any material part of, or
             item of equipment installed  on, the Rig unless the part  or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is in  the same condition  as or better condition  than the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner  and  subject to  the  security  constituted  by  this
             Mortgage;

       (f)   submit  the Rig to  such periodical  or other  surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee  and the Administrative Agent copies of all
             survey reports issued in respect thereof;

       (g)   permit  the  representatives  of  the   Administrative  Agent  or
             independent surveyors representing the  Trustee to board the  Rig
             at  all  reasonable  times and  upon  reasonable  notice for  the
             purpose  of  inspecting  her  condition  or  for the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and to afford all proper facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental charges,  fines and penalties  lawfully
             charged  on or  in respect  of the  Rig  and all  other outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig pursuant  to  legal  process, or  in  the event  of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require; 

       (i)   not  employ  the Rig  or allow  her  employment in  any  trade or
             business  which  is  unlawful  under  the  laws of  any  relevant
             jurisdiction or  in carrying illicit  or prohibited  goods or  in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world  (whether war be declared or
             not) not employ the Rig or suffer her employment  in carrying any
             contraband  goods  or to  enter  or trade  to any  zone  which is
             declared a  war  zone by  any  government  or by  the  war  risks
             insurers of the Rig  unless there shall have been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Administrative Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from time  to  time require  regarding the  Rig, her  employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages and, upon the  request of the Trustee in writing, copies
             of  all  charters  and other  contracts  for  her  employment  or
             otherwise howsoever concerning her;

       (k)   notify  both the  Trustee and the  Administrative Agent forthwith
             by telex or telecopy thereafter confirmed by letter of:

             (i)    any  casualty to  the Rig  which is  or is  likely to  be a
                    Major Casualty, and

             (ii)   any  occurrence in  consequence whereof the  Rig has become
                    or is,  by the  passing of  time  or  otherwise, likely  to
                    become a Total Loss, and

             (iii)  any  requirement or  recommendation made by  any insurer or
                    classification society or by any competent authority  which
                    is not immediately complied with, and

             (iv)   any  arrest  of  the  Rig  or  the  exercise  or  purported
                    exercise of  any lien on the  Rig or any requisition of the
                    Rig for hire, and

             (v)    any intended dry docking of the Rig, as  to which the Owner
                    shall   give  the  Trustee  ten  (10)  days  prior  notice,
                    provided, that in  the event of  any emergency  dry docking
                    of   the  Rig,  the  Owner  shall  immediately  notify  the
                    Trustee; and

             (vi)   any intended deactivation or lay-up  of the Rig (other than
                    for  normal periods of inactivity between contracts for the
                    Rig  during  which  periods the  Rig  remains  manned)  and
                    obtain the prior written consent of the Trustee;

       (l)   keep proper  books of account  in respect of the  Rig and  as and
             when the  Trustee or the  Administrative Agent may so  reasonably
             require  make such  books available  for inspection  on behalf of
             the Trustee and furnish satisfactory evidence that the wages  and
             allotments  and the insurance  of the master  and crew  are being
             regularly  paid  and that  all  deductions from  crew's  wages in
             respect  of  tax  and/or  social  security  liability  are  being
             properly accounted  for and  that  the master  has  no claim  for
             disbursements other than those  incurred by  him in the  ordinary
             course of trading on the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement  which apply to  the Rig and  the Owner, and  in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis; 

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person for the purpose  of work being done upon
             her  in an amount exceeding or  likely to exceed Two Million Five
             Hundred Thousand  United States  Dollars  (US$2,500,000) (or  the
             equivalent in any other currency) unless such person shall  first
             have  given to the Trustee  and in  terms reasonably satisfactory
             to it a written undertaking  not to exercise any lien on  the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established by  the Ship  Mortgage Act  and  any other  pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid and  enforceable first and preferred  lien upon  the
             Rig and  promptly to  furnish to  the Trustee from  time to  time
             such proof as the Trustee may  request for its satisfaction  with
             respect  to the Owner's  compliance with  the provisions  of this
             sub-clause;

       (p)   place,  and  use due  diligence to  retain, a  properly certified
             copy of this Mortgage on  board the Rig with her papers and cause
             such  certified copy of this Mortgage  to be exhibited to any and
             all persons having  business with the  Rig which might  give rise
             to any lien thereon other  than a lien for crew's  wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and  in the  master's cabin  of  the Rig  a  framed printed
             notice in  plain type in English of  such size that the paragraph
             of reading matter  shall cover  a space  not less  than 6  inches
             wide and 9 inches high reading as follows:

                                       "NOTICE OF MORTGAGE

             This Rig is covered  by a First Preferred Mortgage to CHRISTIANIA
             BANK  OG KREDITKASSE, NEW  YORK BRANCH,  as Security  Trustee for
             the  Banks defined in  the said Mortgage  under authority  of the
             United States Ship Mortgage Act, 1920,  as amended, recodified as
             46 U.S.C.  31301  et seq.  Under the terms  of the said Mortgage
             neither the  Owner nor any  charterer nor the master  of this Rig
             nor  any  other  person has  any  right,  power  or  authority to
             create, incur  or permit to  be imposed  upon this  Rig any  lien
             whatsoever  other  than for  crew's  wages,  general average  and
             salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)    any Environmental Claim which could  reasonably be expected
                    to result in damages in excess of  US$200,000 being or made
                    against  the  Owner, or  otherwise in  connection with  the
                    Rig; or

             (ii)   any Environmental Incident occurring,  and keep the Trustee
                    advised, in  writing  on  such regular  basis and  in  such
                    detail  as  the  Trustee  shall  require,  of  the  Owner's
                    response  to  such  Environmental  Claim  or  Environmental
                    Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by  the Credit  Agreement)  without the  written  consent of  the
             Trustee having  first been obtained, and any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to  be a waiver of  this provision with respect  to any
             subsequent  proposed sale, mortgage or  transfer.  Any such sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the lien  it creates.   The Owner shall not  charter
             the Rig to,  or permit the Rig to serve  under any contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated  foreign country," or "specially designated national"
             of a  "designated foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury  Department, 31 C.F.R. Parts 500  and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity"  in the  Libyan
             Sanctions Regulations  of the United States  Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of the Government  of Iraq" or "Iraqi Government  entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified at  31 C.F.R. Part  575, as amended,  all within  the
             meaning   of   said   Regulations   or    of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter  any Cuban port for any purpose  or engage in any
             transaction  that violates  any provision of  said Regulations or
             that   violates  any   provision  of   the  Iranian  Transactions
             Regulations, 31  C.F.R. Part 560,  as amended, the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction or  violation  would (i)  expose the  Trustee to  any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to law,  shall not abandon  the Rig in  a foreign port,
             shall  not engage  in any  unlawful trade  or violate  any law or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or  capture, and shall not  do, or  suffer or permit  to be done,
             anything  which can or may injuriously affect the registration or
             enrollment of  the Rig under  the laws of  the United States  and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound)  at any time  and as often as  may be necessary to  take any
       such action as  it may  in the  reasonable exercise  of its  discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created by  this Mortgage and  the other  Credit Documents  (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the Owner  does not comply with the  provisions of Clause 6 or
             any of them the Administrative Agent  shall be entitled (but  not
             bound)  to effect  or  to replace  and  renew  and thereafter  to
             maintain the Insurances  in such manner  as in its  discretion it
             may  think fit and  to require that  all policies,  contracts and
             other  records relating  to the Insurances  (including details of
             any  correspondence concerning  outstanding claims)  be forthwith
             delivered  to  such  brokers  as  the  Administrative  Agent  may
             nominate  and to  collect, recover,  compromise  and give  a good
             discharge for all claims  then outstanding or thereafter  arising
             under  the  Insurances  or  any  of  them and  to  take  over  or
             institute  (if necessary using  the name of  the Owner)  all such
             proceedings in connection  therewith as the  Administrative Agent
             in  its absolute  discretion  may think  fit  and  to permit  the
             brokers through  whom the collection  or recovery is effected  to
             charge the usual brokerage therefor; and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but not bound) to  arrange for the carrying out of such
             repairs to  and/or surveys of  the Rig as  it deems expedient  or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or  any of them  the Trustee shall  be entitled  (but not
             bound)  to  pay  and  discharge  all  such  debts,  damages   and
             liabilities  and   all  such  tolls,  dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS

9.01   Upon  the happening  of any of  the Events of  Default specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction  to the effect that an Event of Default
       has occurred (and whether  prior to or after the Required  Banks having
       served on the Owner  any such notice as is referred to in  Section 9 of
       the  Credit Agreement) the security  constituted by this Mortgage shall
       become immediately enforceable and  the Trustee  shall be entitled,  as
       and when  it may see fit, to put into force  and exercise all or any of
       the powers possessed by it as mortgagee  of the Rig or otherwise and in
       particular:

       (a)   to  exercise  all  the  rights and  remedies  in  foreclosure and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to take possession of the Rig whether  actually or constructively
             and/or otherwise to take control of the  Rig wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal  process and without  liability of the Trustee  for
             any losses  or  damages incurred  thereby and  without having  to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith  delivered to  or to  the  order of  the Administrative
             Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure   that   the  Administrative   Agent   collect,  recover,
             compromise  and give  good discharge  for any  and all  moneys or
             claims  for moneys  then outstanding or  thereafter arising under
             the Insurances or any Requisition Compensation and  to permit any
             brokers  through  whom  collection  or recovery  is  effected  to
             charge the usual brokerage therefor;

       (e)   to take over  or institute (if  necessary using the  name of  the
             Owner) or, to the extent lawful, procure that  the Administrative
             Agent take over  or institute all such  proceedings in connection
             with the Rig,  the Insurances, or any Requisition Compensation as
             the  Trustee  in  its  absolute  discretion  thinks  fit  and  to
             discharge,  compound, release  or  compromise claims  against the
             Owner in respect of the Rig which have given or may give rise  to
             any charge or lien on  the Rig or which are or may be enforceable
             by proceedings against the Rig;

       (f)   to  sell  the Rig  or  any share  therein  with or  without prior
             notice to  the Owner free  from any claim of  or by the  Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some  or all of the purchase price be deferred) as the Trustee in
             its absolute discretion may  determine with power to postpone any
             such sale,  without being answerable  for any loss occasioned  by
             such sale or resulting  from postponement thereof, and/or  itself
             to  purchase the  Rig at any  such public auction  and to set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for the purposes aforesaid the  Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting the  Rig, and the  insurance, management, maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in all respects as  if the Trustee were the owner of  the Rig and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as  may  be  incurred by  the  Trustee  in  or  about the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or incidental  to  the  exercise  by it  of  any  of  the  powers
             aforesaid.

9.02   The Trustee shall not  be obliged to make any enquiry as  to the nature
       or sufficiency of any payment received by it under  this Mortgage or to
       make  any claim,  take any action  or enforce  any rights  and benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates and  advisers shall  be liable  for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection with  the  exercise or  purported  exercise of  any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall not by reason of the taking  possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or  be liable for any loss upon  realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any sale  of  the Rig  or any  share therein  by the  Trustee the
       purchaser shall  not be bound  to see or enquire  whether the  power of
       sale  of the Trustee has arisen in the manner provided in this Mortgage
       and the sale shall be deemed  to be within the power of the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge  the purchaser who shall not be  concerned with the manner of
       application  of the  proceeds  of  sale or  be  in any  way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All  moneys  received  by  the  Trustee  (or  any  other  Secured
             Creditor, as the  case may be) in  respect of sale of the  Rig or
             any part thereof; in  respect of  recovery under the  Insurances;
             or  in respect  of Requisition Compensation  shall be  applied in
             the following manner:

             (i)    first,  to the payment of all amounts  owing the Trustee of
                    the type described in clauses (ii) and (iii) of Recital D;

             (ii)   second,  to the extent  moneys remain after the application
                    pursuant to  the preceding  clause (i), an amount  equal to
                    the  outstanding Obligations  shall be paid  to the Secured
                    Creditors  as  provided  in  Clause  10.01(c),  with   each
                    Secured  Creditor  receiving  an   amount  equal  to   such
                    Obligations   held   by  it   or,  if   the  proceeds   are
                    insufficient to pay  in full all  such Obligations, its Pro
                    Rata Share  (as defined below)  of the  amount remaining to
                    be distributed; and

             (iii)  third,  to the  extent moneys remain  after the application
                    pursuant  to  the  preceding  clauses  (i)  and  (ii),  and
                    following  the  termination of  this  Mortgage pursuant  to
                    Clause 3.01,  any surplus then remaining  shall be paid  to
                    the  Owner, subject,  however, to the rights  of the holder
                    of  any then existing Lien of which  the Trustee has actual
                    notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount of such  Obligations owing to or held  by such
             Secured  Creditor  and  the  denominator of  which  is  the  then
             outstanding  amount of  all  such Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee shall  be entitled  to request each  Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed  to  it and  shall  be entitled  to  reply upon  the amounts
             stated therein in making such distribution.

       (c)   All payments required  to be made to Secured  Creditors hereunder
             shall  be  made  to the  Administrative  Agent  under the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i) the Administrative Agent under the Credit Agreement  and (ii)
             the   Secured   Creditors  for   a   determination   (which   the
             Administrative  Agent  and   each  Secured  Creditor,   by  their
             acceptance  of the benefits of  this Mortgage  shall be obligated
             to provide  upon  request  of the  Trustee)  of  the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge (including  by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in furnishing  information  pursuant  to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be entitled to assume  that no obligations other than  principal,
             interest and regularly  accruing fees  are owing  to any  Secured
             Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:

       (a)   perfecting or protecting the security created (or  intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting  any of the  rights of the  Trustee, and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the  security constituted by this  Mortgage and the
             covenants and obligations  of the Owner under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner,  by way of  security and in  order more fully to  secure the
       performance  of  the  Obligations,  hereby  irrevocably  appoints   the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering  in its name all  documents which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage shall  have become  immediately enforceable pursuant  to
             Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of  such power as is referred to  in Clause 12.01(a) by or
       on  behalf of the  Trustee shall  not put any  person dealing  with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor  shall such  person be in  any way  affected by  notice
       that this Mortgage has not become enforceable  and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on  the release  of the  Rig  from the  security created  by this
             Mortgage,

       and the  Secured Creditors and each  such agent or attorney  may retain
       and pay all  sums in respect  of the same  out of money  received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by  such  Secured  Creditors   or  such  agent  or  attorney  shall  be
       recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred  by or asserted against them, or any of them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury  (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement  reached;  or (d)  any  violation  of laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable law  or regulation, and whether pursuant  to a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or  for  any other  reason,  any  payment  under  or in
       connection  with this Mortgage is  made or  fails to be  satisfied in a
       currency (the  "payment currency")  other  than the  currency in  which
       such payment is  due under  or in  connection with  this Mortgage  (the
       "contractual  currency"), then to  the extent that  the amount  of such
       payment  actually  received by  the  Trustee, when  converted  into the
       contractual  currency at  the  rate of  exchange,  falls  short of  the
       amount due under  or in connection with this Mortgage,  the Owner, as a
       separate and independent obligation, shall indemnify  and hold harmless
       the Trustee against the amount  of such shortfall.  For the purposes of
       this Clause 13.03,  "rate of  exchange"  means the  rate  at which  the
       Trustee is  able  on  the date  of  such  payment (or,  if  it  is  not
       practicable for the Trustee to  purchase the contractual currency  with
       the  payment currency  on the  date  of such  payment, at  the rate  of
       exchange as  soon afterwards as  is practicable  for the Trustee  to do
       so) to purchase the  contractual currency with the payment currency and
       shall take into account  any premium and other  costs of exchange  with
       respect thereto.

14.    EXPENSES

14.01  The  Owner shall pay to any Secured  Creditor on demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the  negotiation,  preparation   and  execution  of   the  Credit
             Agreement and the Credit Documents (or any of them); and/or

       (b)   the preserving  or enforcing  of, or  attempting  to preserve  or
             enforce,  any of its  rights under the  Credit Agreement  and the
             Credit Documents (or any of them).

14.02  The  Owner shall  pay to  the Trustee  and the Administrative  Agent on
       demand  all costs, fees  and expenses (including,  but not  limited to,
       legal  fees and  expenses) and  Taxes thereon  incurred by  any Secured
       Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the  Credit Agreement and  the Credit Documents  (or any
             of  them) requested  by the  Owner, necessary  or advisable under
             applicable law or  relating to  the syndication of  the Facility,
             or initiated during the  occurrence and continuation of  an Event
             of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the Credit Agreement and the Credit Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement  and  the  Credit
       Documents (or  any of  them)  may be  subject or  give  rise and  shall
       indemnify the Trustee  on demand against  any and all  liabilities with
       respect to or resulting from  any delay or omission on the  part of the
       Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to  the Trustee hereunder shall be in  writing and shall be
       made to the following address:

                   Christiania Bank og Kreditkasse, New York Branch
                   11 West 42nd Street
                   7th Floor
                   New York, New York  10036
                   Telefax:  (212) 827-4888
                   Attention:  Loan Administration


       All  other notices  shall be  made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors  and permitted assigns  and references  in this  Mortgage to
       any of them shall be construed accordingly.

16.02  The Owner  may not assign  or transfer  all or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.04 of  the Credit Agreement, each  Bank has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations  under the Credit Agreement  on the terms therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this  Mortgage is  Three Hundred Million  U.S. Dollars (US$300,000,000)
       of  principal  plus  interest,  fees, commissions  and  performance  of
       mortgage covenants.   The interest  of the  Owner in  the Rig is  100%.
       The interest of the Trustee  in the Rig is 100%.   The date of maturity
       is  November 13,  2001, and  the discharge  amount is  the same  as the
       total amount  plus such other sums as shall be  payable by the Owner to
       the Banks under the Credit Agreement.

18.    MISCELLANEOUS

18.01  If at any  time any one or more  of the provisions in this  Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law  or regulation,  the validity,  legality and  enforceability of the
       remaining provisions of this Mortgage shall not  be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time  and from time to time, may delegate  by power
       of attorney or in any other manner to any  person or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such delegation  may be made upon such terms  and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in any  way liable or responsible  to the Owner for any  loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for  in this Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The  Owner agrees that the Trustee shall have the liberty but shall not
       be  obliged to  take any  proceedings in the  courts of  any country to
       protect or  enforce the  security constituted  by this Mortgage  and/or
       the Credit  Agreement and  the  Security Documents  or  to enforce  any
       provisions  of  this  Mortgage  and/or  the  Credit  Agreement and  the
       Security Documents or  to enforce the  Obligations and for  the purpose
       of  any proceedings for  such enforcement the  Owner hereby  submits to
       the  jurisdiction of  the courts  of any country  of the  choice of the
       Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place  the Rig shall be  found lying and for the  purpose of any action
       which the  Trustee may bring before the courts  of such jurisdiction or
       other judicial  authority and for the  purpose of any action  which the
       Trustee may bring against the Rig, any writ, notice,  judgment or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner agrees  that  should the  Trustee bring  a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in connection  with this Mortgage,  no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby consents generally in  respect of any legal action  or
       proceedings arising  out of or in connection with  this Mortgage to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made  or given in such
       action or proceedings.

IN WITNESS  whereof the Owner has caused this Mortgage to be executed the  day
and year first before written.

READING & BATES DRILLING CO.

By_____________________________________
    Name:  T.W. Nagle
    Title:  Vice President and Treasurer


                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )


On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle to  me known  who being  by me duly  sworn did  depose and  say that  he
resides at  13307  Tosca Lane,  Houston, TX;  that he  is  Vice President  and
Treasurer for READING &  BATES DRILLING CO., the corporation described  in and
which  executed the foregoing instrument; and  that he signed his name thereto
by order of the Board of Directors of READING & BATES DRILLING CO.




                                 ________________________
                                 Notary Public



                                                                Exhibit 10.124


                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996

                       READING & BATES OFFSHORE, LIMITED

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee


                              GEORGE H. GALLOWAY
==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTERPAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  13 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  17 
      9     ENFORCEABILITY AND TRUSTEE'S POWERS . . . . . . . . . . . . .  18 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  21 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  24 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  24 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

      ACKNOWLEDGEMENT OF MORTGAGE
      EXHIBIT 1 FORM OF CREDIT AGREEMENT
      EXHIBIT 2 FORM OF SUBSIDIARY GUARANTY

==============================================================================


THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 13th day  of
November, 1996

BY

(1)    READING & BATES OFFSHORE,  LIMITED, an Oklahoma corporation  having its
       principal offices at 901  Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"),

IN FAVOR OF

(2)    CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK BRANCH, a  Norwegian banking
       corporation  having its office  at 11 West  42nd Street,  New York, New
       York, as  security trustee for  the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is  the sole owner of the  whole of the jack-up  drilling rig
       GEORGE H.  GALLOWAY documented under  the laws and  flag of the  United
       States  of   America  with  Official   Number 673210  of  3,729   gross
       registered tons and 2,496 net registered tons (the "Rig").

(B)    By  a Credit  Agreement dated  as of  November  13, 1996  (as modified,
       amended  or supplemented  from time  to time,  the  "Credit Agreement")
       among  (i)  Reading   &  Bates  Corporation,  a   Delaware  corporation
       ("Holdings"),  (ii)   Reading  &  Bates   Drilling  Co.,  an   Oklahoma
       corporation  (the  "Borrower"),  (iii) the  banks  party  thereto  (the
       "Banks"), (iv) Credit  Lyonnais New York Branch and Banque Indosuez, as
       documentation agents (the "Documentation Agents")  and (v) the Trustee,
       as  administrative  agent,  arranger  and  security  trustee  (in  such
       capacity,  the  "Administrative  Agent")  (the  form  of  which  Credit
       Agreement together  with Exhibit B  thereto but  without the  remaining
       attachments  is attached  hereto  as Exhibit  1),  it was  agreed among
       other things that the Banks would  make available to the Borrower  upon
       the terms and conditions therein described a reducing  revolving credit
       facility  (the  "Facility")   in  an  aggregate  amount   at  any  time
       outstanding   of   Three   Hundred    Million   United States   Dollars
       (US$300,000,000), providing  for the making  of Loans and the  issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The obligations  of  the Borrower  with  respect  to the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the promissory notes of the Borrower payable to the  order of
       the respective  Banks (each  a "Note"  and, collectively,  the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed and delivered a  Subsidiary Guaranty (as modified, amended  or
       supplemented from time  to time,  the "Subsidiary Guaranty"),  the form
       of which  Subsidiary Guaranty is attached hereto as Exhibit 2, in favor
       of  the  Administrative  Agent  guaranteeing  the  performance  by  the
       Borrower of  its obligations under  the Credit Agreement  and the other
       Credit Documents.

(E)    This  Mortgage is made  for the  benefit of  the Trustee to  secure the
       guaranty by the  Owner of (i) the  full and prompt payment  when due of
       (x) the principal of  and interest on the Notes issued, and Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect  to the Letters of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of the  Borrower  to the  Secured  Creditors (as  hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit Agreement and the other  Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by  the Borrower  with  all of  the terms,
       conditions and  agreements contained  in the Credit  Agreement and  the
       other Credit  Documents including,  without limitation, this  Mortgage;
       (ii) any and all sums advanced by the Trustee in order to preserve  the
       Collateral (as hereinafter  defined) or preserve its  security interest
       in  the Collateral;  (iii)  in  the event  of  any proceeding  for  the
       collection   or  enforcement  of   any  indebtedness,  obligations,  or
       liabilities of  the Borrower referred to in  clause (i) above, after an
       Event of Default  shall have occurred and be continuing, the reasonable
       expenses of  the Trustee of  re-taking, holding, preparing  for sale or
       lease,   selling  or  otherwise  disposing  of   or  realizing  on  the
       Collateral, or of any exercise by the  Trustee of its rights hereunder,
       together with reasonable  attorneys' fees of counsel to the Trustee and
       court costs; and  (iv) all amounts paid  by any Indemnitee as  to which
       such Indemnitee  has the right to reimbursement under Clause 13 of this
       Mortgage  (all   such  obligations,  liabilities,   sums  and  expenses
       referred  to  in  clauses (i)  through  (iv)  above being  collectively
       referred to as the "Obligations").  It is  acknowledged and agreed that
       the "Obligations"  shall  include extensions  of  credit of  the  types
       described above,  whether outstanding on  the date of  this Mortgage or
       extended from time to time after the date of this Mortgage. 

(F)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of the Banks agreeing  to make the Facility  available to
       the Borrower  and  as  a  condition  thereto and  for  other  good  and
       valuable consideration provided by the Banks (the  sufficiency of which
       the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage unless the  context otherwise requires, the  following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank" means  any lender  listed from time  to time on  Annex I  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the same meaning for such term as set forth  in
       the Credit Agreement;

       "Credit Agreement"  means the  Credit Agreement, dated  as of  November
       13, 1996,  among Holdings, the  Borrower, the Banks, the  Documentation
       Agents, and the Administrative Agent  first referred to in  Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents" shall have  the meaning for  such term as set  forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no Letters of  Credit remain outstanding  and the Loans and  the Unpaid
       Drawings together  with interest,  fees and  all other  obligations are
       paid in full;

       "Default  Rate"  shall   mean  the  rate  of  interest   calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or  authorization required  under  applicable Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance  or  violation,  investigations (other  than
       internal  reports  prepared  by Holdings  or  any  of its  Subsidiaries
       solely  in the  ordinary course  of such  Person's business and  not in
       response  to  any  third  party  action  or  request of  any  kind)  or
       proceedings  relating in any way to any Environmental Law or any permit
       issued,  or  any  approval given,  under  any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental  or  regulatory  authorities for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by   any   third   party   seeking    damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means (i)  any  release  of  Environmentally
       Sensitive  Material  from  the   Rig,  (ii)   any  incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and  which involves  collision between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or otherwise liable (in whole  or in part) or (iii) any  incident
       in  which Environmentally Sensitive Material is  released from a vessel
       other than the Rig and where the Rig is actually or potentially  liable
       to  be arrested  as a  result and/or  where  the Owner  is actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking,  leaching,  dumping, emitting,  escaping,  emptying,  seeping,
       placing  and  the like,  into or  upon  any land  or  water or  air, or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule  of common law now or hereafter  in effect and in each case as
       amended,  and  any judicial  or administrative  interpretation thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including, without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act, as amended, 33 U.S.C.  1251 et seq.;  the
       Toxic Substances Control Act,  15 U.S.C.  7401 et seq.;  the Clean Air
       Act, 42  U.S.C.  7401 et seq.; the  Safe Drinking Water Act, 42 U.S.C.
       3808  et seq.; the  Oil Pollution Act  of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall  have the same meaning  for such term as  set forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation, transformers  or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous waste,"  "restricted  hazardous waste,"  "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental  Law; and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect  of the Rig or otherwise by  the Owner (whether
       in the sole name of  the Owner or in the  joint names of the  Owner and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for  such term as  set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of Credit" shall  have the  same meaning for  such term as  set
       forth in Section 2.01(a) of the Credit Agreement;

       "Loan(s)" shall have the  same meaning  for such term  as set forth  in
       the Credit Agreement;

       "Major Casualty" means any casualty  to the Rig in respect  whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means  each  promissory note  of  the  Borrower referred  to  in
       Recital (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C. 
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       semi-submersible  drilling  rig  JACK  BATES   owned  by  the  Borrower
       documented under the laws  and flag of the United  States with Official
       Number  906283  of  19,928  gross  registered  tons  and    14,948  net
       registered tons; (ii)  the offshore drilling  rig W. D.  KENT owned  by
       Reading & Bates Exploration  Co. documented under the laws and  flag of
       the   United  States  with  Official   Number  583169  of  5,383  gross
       registered  tons  and 4,185  net  registered tons;  (iii)  the offshore
       drilling rig CHARLEY  GRAVES owned by Reading and Bates Borneo Drilling
       Co., Ltd. documented under  the laws and flag of the Republic of Panama
       with  Patente  Number 6618-76-CH  of  5,829 gross  registered  tons and
       1,748 net registered  tons; (iv) the jack-up drilling rig RON TAPPMEYER
       owned  by Reading &  Bates (A) Pty Ltd.  documented under  the laws and
       flag  of  Australia   with  Official  Number 855213  of   11,455  gross
       registered  tons  and   3,436  net  registered  tons;  (v)   the  semi-
       submersible drilling rig  J. W. McLEAN owned by the Borrower documented
       under the  laws and flag of the Republic  of Panama with Patente Number
       25384-PEXT  of 15,453  gross registered tons  and 4,636  net registered
       tons; (vi)  the  semi-submersible drilling  rig  RIG  41 owned  by  the
       Borrower documented under the laws  and flag of the Republic  of Panama
       with the  Patente Number to  be assigned on  the date hereof of  10,078
       gross registered tons  and 3,024 net registered tons; (vii) the jack-up
       drilling rig HARVEY  H. WARD owned  by HRB  Rig Corporation  documented
       under the laws and  flag of the United States of  America with Official
       Number 642693 of 4,121 gross  registered tons and 3,079  net registered
       tons;  (viii) the jack-up  drilling rig F.  G. McCLINTOCK  owned by the
       Owner  documented under  the  laws and  flag  of the  United  States of
       America with Official  Number 562059 of 5,525 gross registered tons and
       1,657 net registered  tons; (ix) the jack-up drilling rig RANDOLPH YOST
       owned by the Borrower documented under the laws  and flag of the United
       States  of  America  with   Official  Number  601699  of   4,701  gross
       registered  tons  and  4,701  net  registered  tons;  (x)  the  jack-up
       drilling rig  J. T. ANGEL  owned by  the Borrower documented  under the
       laws and  flag of the  United States  of America  with Official  Number
       651645 of  4,186 gross registered  tons and 3,090  net registered tons;
       (xi) the  jack-up drilling rig  ROGER W. MOWELL  owned by the  Borrower
       documented under  the laws  and flag  of the  United States of  America
       with Official  Number 645360 of  4,121 gross registered  tons and 3,079
       net  registered tons;  (xii)  the jack-up  drilling  rig D.  R. STEWART
       owned by Reading &  Bates Exploration Co. documented under the laws and
       flag of  the United States  of America with  Official Number 626904  of
       6,494 gross registered tons and  5,834 net registered tons;  and (xiii)
       the  jack-up drilling  rig  C.  E. THORNTON  to  be  owned by  HRB  Rig
       Corporation  documented under the laws and flag of the United States of
       America with Official  Number 673210 of 6,096 gross registered tons and
       6,096 net registered tons;

       "Permitted  Liens" means:  (1) liens  incident to  expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30)  days (or being contested in good faith, provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a bond or other  security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable; (3)  liens for  taxes, assessments,  governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested  in good  faith, provided  such liens  are not  in excess  of
       U.S.$5,000,000.00, and  if  in excess  thereof, then  the Owner  shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security  satisfactory to the Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause  6 hereof (except that  no lien shall be  deemed
       not covered  by insurance to the extent  insurance in force would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant to any  judgment or to  an order of  attachment, distraint  or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the  payment  or  discharge of  which  provisions  satisfactory to  the
       Administrative Agent have been made as evidenced by the  Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate  to the lien of this Mortgage or (ii) constitute a maritime
       lien which would in any event be entitled as such  to priority over the
       Mortgage under  the United  States shipping  laws  or other  applicable
       laws relating  to the Rig's trading  pattern.  Nothing herein  shall be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection and  indemnity  risks" means  the  usual risks  covered  by
       protection   and   indemnity  associations   of   international  repute
       including the  proportion not recoverable  in case  of collision  under
       the ordinary running-down clause  (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the Credit  Facility Period by reason of requisition for
       title  or other  compulsory acquisition  of the  Rig otherwise  than by
       requisition for hire;

       "Rig"  means the vessel  described in Recital  (A) hereto  and includes
       any share  or  interest  therein and  her  engines,  machinery,  boats,
       tackle,  outfit,  spare  gear,   fuel,  consumable  or  other   stores,
       belongings and  appurtenances whether  on board  or ashore  and whether
       now  owned or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit Issuer and  the Administrative Agent under and as defined in the
       Credit Agreement;

       "Security  Documents" shall have the same  meaning for such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Subsidiary  Guaranty" means  the agreement  dated as  of  November 13,
       1996 made by the  Owner in favor of  the Administrative Agent as  first
       referred  to   in  Recital   (D)  hereto,   as  modified,   amended  or
       supplemented from time to time;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes" shall have the same meaning for  such term as set forth in  the
       Credit Agreement;

       "Total  Commitment" shall have  the same meaning  for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive, arranged,  agreed, or
       compromised  Total Loss of  the Rig;  (b) the requisition  for title or
       other compulsory acquisition  or forfeiture  of the Rig  otherwise than
       by  requisition for hire; (c)  the capture,  seizure, arrest, detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting  to  act on  behalf  of  any government  unless  the Rig  be
       released from such capture, seizure, arrest or detention  within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing"  shall have  the same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard  form of  English marine  policy by  the free  of  capture and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are inserted  for convenience only and shall  not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to any Security Interest (except  for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has not  sold or  transferred, or  agreed  to sell  or
             transfer, title to the Rig or any share therein;

       (c)   the Owner  is a  corporation duly organized  and validly existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the  Owner has full power  and authority (i)  to register the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig;

       (f)   the  Owner has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner  enforceable against the Owner in accordance with its terms
             (except  to   the  extent   limited  by  applicable   bankruptcy,
             reorganization, insolvency, moratorium  or other laws  of general
             application   relating  to   or  affecting   the  enforcement  of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's National  Vessel Documentation  Center in  Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect (i) any  law or regulation of any governmental  or
             official  authority or  body,  or (ii)  any  of the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is a  party or which is  binding upon the Owner  or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection   with  the  entry  into,  performance,  validity  and
             enforceability    of   this   Mortgage   and   the   transactions
             contemplated hereby  and thereby have  been obtained  and are  in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage,  it is not necessary  for the  legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that  it or  any document relating  thereto be registered, filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or  that any stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws  and all Environmental  Approvals relating  to the  Rig, its
             operation and management  and the business  of the Owner  (as now
             conducted  and as reasonably anticipated  to be  conducted in the
             future) have been obtained or complied with;

       (k)   no Environmental  Claim has  been made or  threatened against the
             Owner, the Approved  Manager or otherwise in  connection with the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be expected  to result,  in an Environmental  Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall  survive the execution of this Mortgage and shall be deemed to be
       repeated at  the time of the making of each Loan and at the time of the
       issuance  of  each Letter  of Credit,  with  respect to  the  facts and
       circumstances  existing at  each  such time,  as if  made at  each such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto the Trustee, its successors  and assigns, the whole of the  Rig TO
       HAVE AND TO HOLD the  same unto the Trustee, its successors and assigns
       forever upon  the terms  herein set  forth for the  enforcement of  the
       Obligations.

       Provided only and  the condition of these presents is  such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been performed  in full  as  and when  the same  shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in the  Subsidiary Guaranty and this  Mortgage
       expressed or  implied to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then these  presents and the  rights hereunder  shall cease,  determine
       and be void otherwise  to be and remain  in full force and effect  and,
       in such event, the Trustee  agrees to execute and record at the expense
       of the  Owner, all such documents  as the Owner  may reasonably require
       to discharge this Mortgage.

       Notwithstanding  anything to  the contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that if  any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig and  none of the Secured  Creditors shall
       be under  any obligation of any  kind whatsoever in  respect thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors   for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or  other moneys  as are  stated in  this Mortgage to  be
             payable by  the Owner  to or  recoverable from  the Owner  by the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other  moneys referred to
             in Clause 4.01(a)  from the date on  which demand is  made by any
             Secured  Creditor  for  payment  by  the  Owner  of  the relevant
             expense,  claim,  liability, loss,  cost,  duty,  fee, charge  or
             other money incurred  by a Secured  Creditor for which  the Owner
             is  responsible (both before and  after any relevant judgment) at
             the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing  to  a  Secured  Creditor  under  this   Mortgage  and  the
             Subsidiary  Guaranty at  the  times and  in the  manner specified
             herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations  and  that  the  security  so  created shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be prejudiced  or affected by any  of the other  Security
             Documents;

       (c)   the Trustee shall not have to  wait for the Administrative  Agent
             to enforce  any of the other  Security Documents before enforcing
             the security created by this Mortgage;

       (d)   no  delay or  omission on the  part of the  Trustee in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or remedy  or be construed  as a waiver thereof  nor
             shall any single  or partial exercise of any such right, power or
             remedy preclude any further  exercise thereof or the  exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective  if given in writing and  then only for the purpose and
             upon the terms for which it is given.

5.02   Any settlement  or discharge  under this  Mortgage between  the Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being avoided or set-aside or ordered to be refunded  or reduced
       by  virtue  of  any  provision or  enactment  relating  to  bankruptcy,
       insolvency, administration  or liquidation for the  time being in force
       and, if such condition is  not satisfied, the Trustee shall be entitled
       to recover from the Owner on  demand the value of such security or  the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair,  affect or discharge  such rights and security,  in whole or
       in part, including without  limitation, and whether or not  known to or
       discoverable by the Secured Creditors or any other person:

       (a)   any time  or waiver granted  to the Credit  Parties or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit  Parties or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other  Credit Documents  (other than this  Mortgage) or any other
             document or uch  jurisdiction or
       other judicial authority  and for the purpose  of any action which  the
       Trustee may bring against the Rig, any writ, notice, judgment  or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner  agrees that  should the  Trustee  bring a  legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out of or  in connection with  this Mortgage, no immunity  from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without  limitation,   suit,  attachment   prior  to  judgment,   other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of the  Owner or with respect of  its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the  Owner hereby consents generally in respect  of any legal action or
       proceedings arising out of  or in connection with this Mortgage  to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever  of any order or judgment which may be made or given in such
       action or proceedings.


IN WITNESS  whereof the Owner has caused this Mortgage  to be executed the day
and year first before written.

READING & BATES OFFSHORE, LIMITED


By_____________________________________
    Name:  T.W. Nagle
    Title:  Vice President and Treasurer



                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle  to me  known who  being by  me duly  sworn did  depose and say  that he
resides  at 13307  Tosca Lane,  Houston,  TX; that  he is  Vice  President and
Treasurer for  READING & BATES OFFSHORE, LIMITED, the corporation described in
and which  executed the  foregoing instrument;  and  that he  signed his  name
thereto  by order  of the  Board  of Directors  of READING  &  BATES OFFSHORE,
LIMITED.



                                 _____________________
                                 Notary Public


                                                                Exhibit 10.125


                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996

                       READING & BATES OFFSHORE, LIMITED

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee


                               F. G. McCLINTOCK

==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTERPAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
      9     ENFORCEABILITY AND TRUSTEE'S POWERS . . . . . . . . . . . . .  19 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  21 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  22 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  25 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  26 

      ACKNOWLEDGEMENT OF MORTGAGE
      EXHIBIT 1 FORM OF CREDIT AGREEMENT
      EXHIBIT 2 FORM OF SUBSIDIARY GUARANTY

==============================================================================

THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 13th day  of
November, 1996

BY

(1)    READING & BATES OFFSHORE,  LIMITED, an Oklahoma corporation  having its
       principal offices at 901  Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"),

IN FAVOR OF

(2)    CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK BRANCH, a  Norwegian banking
       corporation  having its office  at 11 West  42nd Street,  New York, New
       York, as  security trustee for  the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is  the sole owner of the  whole of the jack-up  drilling rig
       F.  G. McCLINTOCK  documented under  the laws  and flag  of the  United
       States  of   America  with  Official   Number 562059  of  5,525   gross
       registered tons and 1,657 net registered tons (the "Rig").

(B)    By  a Credit  Agreement dated  as of  November  13, 1996  (as modified,
       amended  or supplemented  from time  to time,  the  "Credit Agreement")
       among  (i)  Reading   &  Bates  Corporation,  a   Delaware  corporation
       ("Holdings"),  (ii)   Reading  &  Bates   Drilling  Co.,  an   Oklahoma
       corporation  (the  "Borrower"),  (iii) the  banks  party  thereto  (the
       "Banks"), (iv) Credit  Lyonnais New York Branch and Banque Indosuez, as
       documentation agents (the "Documentation Agents")  and (v) the Trustee,
       as  administrative  agent,  arranger  and  security  trustee  (in  such
       capacity,  the  "Administrative  Agent")  (the  form  of  which  Credit
       Agreement together  with Exhibit B  thereto but  without the  remaining
       attachments  is attached  hereto  as Exhibit  1),  it was  agreed among
       other things that the Banks would  make available to the Borrower  upon
       the terms and conditions therein described a reducing  revolving credit
       facility  (the  "Facility")   in  an  aggregate  amount   at  any  time
       outstanding   of   Three   Hundred    Million   United States   Dollars
       (US$300,000,000), providing  for the making  of Loans and the  issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The obligations  of  the Borrower  with  respect  to the  Facility  are
       evidenced  by  the Credit  Agreement  and the  other  Credit Documents,
       including the promissory notes of the Borrower payable to the  order of
       the respective  Banks (each  a "Note"  and, collectively,  the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed and delivered a  Subsidiary Guaranty (as modified, amended  or
       supplemented from time  to time,  the "Subsidiary Guaranty"),  the form
       of which  Subsidiary Guaranty is attached hereto as Exhibit 2, in favor
       of  the  Administrative  Agent  guaranteeing  the  performance  by  the
       Borrower of  its obligations under  the Credit Agreement  and the other
       Credit Documents.

(E)    This  Mortgage is made  for the  benefit of  the Trustee to  secure the
       guaranty by the  Owner of (i) the  full and prompt payment  when due of
       (x) the principal of  and interest on the Notes issued, and Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect  to the Letters of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of the  Borrower  to the  Secured  Creditors (as  hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit Agreement and the other  Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by  the Borrower  with  all of  the terms,
       conditions and  agreements contained  in the Credit  Agreement and  the
       other Credit  Documents including,  without limitation, this  Mortgage;
       (ii) any and all sums advanced by the Trustee in order to preserve  the
       Collateral (as hereinafter  defined) or preserve its  security interest
       in  the Collateral;  (iii)  in  the event  of  any proceeding  for  the
       collection   or  enforcement  of   any  indebtedness,  obligations,  or
       liabilities of  the Borrower referred to in  clause (i) above, after an
       Event of Default  shall have occurred and be continuing, the reasonable
       expenses of  the Trustee of  re-taking, holding, preparing  for sale or
       lease,   selling  or  otherwise  disposing  of   or  realizing  on  the
       Collateral, or of any exercise by the  Trustee of its rights hereunder,
       together with reasonable  attorneys' fees of counsel to the Trustee and
       court costs; and  (iv) all amounts paid  by any Indemnitee as  to which
       such Indemnitee  has the right to reimbursement under Clause 13 of this
       Mortgage  (all   such  obligations,  liabilities,   sums  and  expenses
       referred  to  in  clauses (i)  through  (iv)  above being  collectively
       referred to as the "Obligations").  It is  acknowledged and agreed that
       the "Obligations"  shall  include extensions  of  credit of  the  types
       described above,  whether outstanding on  the date of  this Mortgage or
       extended from time to time after the date of this Mortgage. 

(F)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration of the Banks agreeing  to make the Facility  available to
       the Borrower  and  as  a  condition  thereto and  for  other  good  and
       valuable consideration provided by the Banks (the  sufficiency of which
       the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage unless the  context otherwise requires, the  following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank" means  any lender  listed from time  to time on  Annex I  to the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the same meaning for such term as set forth  in
       the Credit Agreement;

       "Credit Agreement"  means the  Credit Agreement, dated  as of  November
       13, 1996,  among Holdings, the  Borrower, the Banks, the  Documentation
       Agents, and the Administrative Agent  first referred to in  Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents" shall have  the meaning for  such term as set  forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no Letters of  Credit remain outstanding  and the Loans and  the Unpaid
       Drawings together  with interest,  fees and  all other  obligations are
       paid in full;

       "Default  Rate"  shall   mean  the  rate  of  interest   calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or  authorization required  under  applicable Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance  or  violation,  investigations (other  than
       internal  reports  prepared  by Holdings  or  any  of its  Subsidiaries
       solely  in the  ordinary course  of such  Person's business and  not in
       response  to  any  third  party  action  or  request of  any  kind)  or
       proceedings  relating in any way to any Environmental Law or any permit
       issued,  or  any  approval given,  under  any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental  or  regulatory  authorities for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by   any   third   party   seeking    damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means (i)  any  release  of  Environmentally
       Sensitive  Material  from  the   Rig,  (ii)   any  incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and  which involves  collision between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or otherwise liable (in whole  or in part) or (iii) any  incident
       in  which Environmentally Sensitive Material is  released from a vessel
       other than the Rig and where the Rig is actually or potentially  liable
       to  be arrested  as a  result and/or  where  the Owner  is actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking,  leaching,  dumping, emitting,  escaping,  emptying,  seeping,
       placing  and  the like,  into or  upon  any land  or  water or  air, or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule  of common law now or hereafter  in effect and in each case as
       amended,  and  any judicial  or administrative  interpretation thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including, without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act, as amended, 33 U.S.C.  1251 et seq.;  the
       Toxic Substances Control Act,  15 U.S.C.  7401 et seq.;  the Clean Air
       Act, 42  U.S.C.  7401 et seq.; the  Safe Drinking Water Act, 42 U.S.C.
       3808  et seq.; the  Oil Pollution Act  of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall  have the same meaning  for such term as  set forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation, transformers  or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous waste,"  "restricted  hazardous waste,"  "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental  Law; and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect  of the Rig or otherwise by  the Owner (whether
       in the sole name of  the Owner or in the  joint names of the  Owner and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for  such term as  set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of Credit" shall  have the  same meaning for  such term as  set
       forth in Section 2.01(a) of the Credit Agreement;

       "Loan(s)" shall have the  same meaning  for such term  as set forth  in
       the Credit Agreement;

       "Major Casualty" means any casualty  to the Rig in respect  whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means  each  promissory note  of  the  Borrower referred  to  in
       Recital (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C. 
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       semi-submersible  drilling  rig  JACK  BATES   owned  by  the  Borrower
       documented under the laws  and flag of the United  States with Official
       Number  906283  of  19,928  gross  registered  tons  and    14,948  net
       registered tons; (ii)  the offshore drilling  rig W. D.  KENT owned  by
       Reading & Bates Exploration  Co. documented under the laws and  flag of
       the   United  States  with  Official   Number  583169  of  5,383  gross
       registered  tons  and 4,185  net  registered tons;  (iii)  the offshore
       drilling rig CHARLEY  GRAVES owned by Reading and Bates Borneo Drilling
       Co., Ltd. documented under  the laws and flag of the Republic of Panama
       with  Patente  Number 6618-76-CH  of  5,829 gross  registered  tons and
       1,748 net registered  tons; (iv) the jack-up drilling rig RON TAPPMEYER
       owned  by Reading &  Bates (A) Pty Ltd.  documented under  the laws and
       flag  of  Australia   with  Official  Number 855213  of   11,455  gross
       registered  tons  and   3,436  net  registered  tons;  (v)   the  semi-
       submersible drilling rig  J. W. McLEAN owned by the Borrower documented
       under the  laws and flag of the Republic  of Panama with Patente Number
       25384-PEXT  of 15,453  gross registered tons  and 4,636  net registered
       tons; (vi)  the  semi-submersible drilling  rig  RIG  41 owned  by  the
       Borrower documented under the laws  and flag of the Republic  of Panama
       with the  Patente Number to  be assigned on  the date hereof of  10,078
       gross registered tons  and 3,024 net registered tons; (vii) the jack-up
       drilling rig HARVEY  H. WARD owned  by HRB  Rig Corporation  documented
       under the laws and  flag of the United States of  America with Official
       Number 642693 of 4,121 gross  registered tons and 3,079  net registered
       tons; (viii) the jack-up drilling rig  GEORGE H. GALLOWAY owned by  the
       Owner  documented under  the  laws and  flag  of the  United  States of
       America with Official  Number 651646 of 3,729 gross registered tons and
       2,496 net registered  tons; (ix) the jack-up drilling rig RANDOLPH YOST
       owned by the Borrower documented under the laws  and flag of the United
       States  of  America  with   Official  Number  601699  of   4,701  gross
       registered  tons  and  4,701  net  registered  tons;  (x)  the  jack-up
       drilling rig  J. T. ANGEL  owned by  the Borrower documented  under the
       laws and  flag of the  United States  of America  with Official  Number
       651645 of  4,186 gross registered  tons and 3,090  net registered tons;
       (xi) the  jack-up drilling rig  ROGER W. MOWELL  owned by the  Borrower
       documented under  the laws  and flag  of the  United States of  America
       with Official  Number 645360 of  4,121 gross registered  tons and 3,079
       net  registered tons;  (xii)  the jack-up  drilling  rig D.  R. STEWART
       owned by Reading &  Bates Exploration Co. documented under the laws and
       flag of  the United States  of America with  Official Number 626904  of
       6,494 gross registered tons and  5,834 net registered tons;  and (xiii)
       the  jack-up drilling  rig  C.  E. THORNTON  to  be  owned by  HRB  Rig
       Corporation  documented under the laws and flag of the United States of
       America with Official  Number 673210 of 6,096 gross registered tons and
       6,096 net registered tons;

       "Permitted  Liens" means:  (1) liens  incident to  expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30)  days (or being contested in good faith, provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a bond or other  security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable; (3)  liens for  taxes, assessments,  governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested  in good  faith, provided  such liens  are not  in excess  of
       U.S.$5,000,000.00, and  if  in excess  thereof, then  the Owner  shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security  satisfactory to the Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause  6 hereof (except that  no lien shall be  deemed
       not covered  by insurance to the extent  insurance in force would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant to any  judgment or to  an order of  attachment, distraint  or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the  payment  or  discharge of  which  provisions  satisfactory to  the
       Administrative Agent have been made as evidenced by the  Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate  to the lien of this Mortgage or (ii) constitute a maritime
       lien which would in any event be entitled as such  to priority over the
       Mortgage under  the United  States shipping  laws  or other  applicable
       laws relating  to the Rig's trading  pattern.  Nothing herein  shall be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection and  indemnity  risks" means  the  usual risks  covered  by
       protection   and   indemnity  associations   of   international  repute
       including the  proportion not recoverable  in case  of collision  under
       the ordinary running-down clause  (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means  all  moneys or  other  compensation
       payable during the Credit  Facility Period by reason of requisition for
       title  or other  compulsory acquisition  of the  Rig otherwise  than by
       requisition for hire;

       "Rig"  means the vessel  described in Recital  (A) hereto  and includes
       any share  or  interest  therein and  her  engines,  machinery,  boats,
       tackle,  outfit,  spare  gear,   fuel,  consumable  or  other   stores,
       belongings and  appurtenances whether  on board  or ashore  and whether
       now  owned or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit Issuer and  the Administrative Agent under and as defined in the
       Credit Agreement;

       "Security  Documents" shall have the same  meaning for such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Subsidiary  Guaranty" means  the agreement  dated as  of  November 13,
       1996 made by the  Owner in favor of  the Administrative Agent as  first
       referred  to   in  Recital   (D)  hereto,   as  modified,   amended  or
       supplemented from time to time;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes" shall have the same meaning for  such term as set forth in  the
       Credit Agreement;

       "Total  Commitment" shall have  the same meaning  for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive, arranged,  agreed, or
       compromised  Total Loss of  the Rig;  (b) the requisition  for title or
       other compulsory acquisition  or forfeiture  of the Rig  otherwise than
       by  requisition for hire; (c)  the capture,  seizure, arrest, detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting  to  act on  behalf  of  any government  unless  the Rig  be
       released from such capture, seizure, arrest or detention  within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing"  shall have  the same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard  form of  English marine  policy by  the free  of  capture and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are inserted  for convenience only and shall  not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to any Security Interest (except  for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has not  sold or  transferred, or  agreed  to sell  or
             transfer, title to the Rig or any share therein;

       (c)   the Owner  is a  corporation duly organized  and validly existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the  Owner has full power  and authority (i)  to register the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig;

       (f)   the  Owner has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner  enforceable against the Owner in accordance with its terms
             (except  to   the  extent   limited  by  applicable   bankruptcy,
             reorganization, insolvency, moratorium  or other laws  of general
             application   relating  to   or  affecting   the  enforcement  of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's National  Vessel Documentation  Center in  Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect (i) any  law or regulation of any governmental  or
             official  authority or  body,  or (ii)  any  of the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is a  party or which is  binding upon the Owner  or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection   with  the  entry  into,  performance,  validity  and
             enforceability    of   this   Mortgage   and   the   transactions
             contemplated hereby  and thereby have  been obtained  and are  in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage,  it is not necessary  for the  legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that  it or  any document relating  thereto be registered, filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or  that any stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws  and all Environmental  Approvals relating  to the  Rig, its
             operation and management  and the business  of the Owner  (as now
             conducted  and as reasonably anticipated  to be  conducted in the
             future) have been obtained or complied with;

       (k)   no Environmental  Claim has  been made or  threatened against the
             Owner, the Approved  Manager or otherwise in  connection with the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be expected  to result,  in an Environmental  Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall  survive the execution of this Mortgage and shall be deemed to be
       repeated at  the time of the making of each Loan and at the time of the
       issuance  of  each Letter  of Credit,  with  respect to  the  facts and
       circumstances  existing at  each  such time,  as if  made at  each such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto the Trustee, its successors  and assigns, the whole of the  Rig TO
       HAVE AND TO HOLD the  same unto the Trustee, its successors and assigns
       forever upon  the terms  herein set  forth for the  enforcement of  the
       Obligations.

       Provided only and  the condition of these presents is  such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been performed  in full  as  and when  the same  shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in the  Subsidiary Guaranty and this  Mortgage
       expressed or  implied to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then these  presents and the  rights hereunder  shall cease,  determine
       and be void otherwise  to be and remain  in full force and effect  and,
       in such event, the Trustee  agrees to execute and record at the expense
       of the  Owner, all such documents  as the Owner  may reasonably require
       to discharge this Mortgage.

       Notwithstanding  anything to  the contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that if  any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig and  none of the Secured  Creditors shall
       be under  any obligation of any  kind whatsoever in  respect thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors   for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or  other moneys  as are  stated in  this Mortgage to  be
             payable by  the Owner  to or  recoverable from  the Owner  by the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other  moneys referred to
             in Clause 4.01(a)  from the date on  which demand is  made by any
             Secured  Creditor  for  payment  by  the  Owner  of  the relevant
             expense,  claim,  liability, loss,  cost,  duty,  fee, charge  or
             other money incurred  by a Secured  Creditor for which  the Owner
             is  responsible (both before and  after any relevant judgment) at
             the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing  to  a  Secured  Creditor  under  this   Mortgage  and  the
             Subsidiary  Guaranty at  the  times and  in the  manner specified
             herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations  and  that  the  security  so  created shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be prejudiced  or affected by any  of the other  Security
             Documents;

       (c)   the Trustee shall not have to  wait for the Administrative  Agent
             to enforce  any of the other  Security Documents before enforcing
             the security created by this Mortgage;

       (d)   no  delay or  omission on the  part of the  Trustee in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or remedy  or be construed  as a waiver thereof  nor
             shall any single  or partial exercise of any such right, power or
             remedy preclude any further  exercise thereof or the  exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective  if given in writing and  then only for the purpose and
             upon the terms for which it is given.

5.02   Any settlement  or discharge  under this  Mortgage between  the Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being avoided or set-aside or ordered to be refunded  or reduced
       by  virtue  of  any  provision or  enactment  relating  to  bankruptcy,
       insolvency, administration  or liquidation for the  time being in force
       and, if such condition is  not satisfied, the Trustee shall be entitled
       to recover from the Owner on  demand the value of such security or  the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair,  affect or discharge  such rights and security,  in whole or
       in part, including without  limitation, and whether or not  known to or
       discoverable by the Secured Creditors or any other person:

       (a)   any time  or waiver granted  to the Credit  Parties or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit  Parties or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other  Credit Documents  (other than this  Mortgage) or any other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity  or   frustration   of   any
             obligations  of any  of the  Credit Parties  or any  other person
             under the Credit  Agreement, any of the other  Security Documents
             (other than this Mortgage) or any other document or security.

6.     INSURANCE

6.01   The  Owner covenants  with the  Trustee throughout  the Credit Facility
       Period that:

       (a)   The  Owner shall,  at its  own expense, when  and so  long as any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured, or cause  the Rig to be insured, in  lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and indemnity  risks,  pollution  liability, and  war
             risks), in such form  (including without limitation, the form  of
             the loss payable  clause and  the designation of  named assureds)
             and  with  such  first class  insurance  companies, underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect  to   hull  and   machinery/increased  value   insurance,
             including war risk, the Owner  shall insure the Rig and  keep her
             insured,  or cause the Rig to be  insured, for an amount which is
             at least  the full  commercial value  of the Rig,  and when  such
             amount is aggregated with  the amount of such insurance  coverage
             on the  Other Rigs, such aggregate amount  shall be at least 110%
             of the Total Commitment.   The Rig shall  in no event be  insured
             for an amount less than the agreed valuation as  set forth in the
             applicable marine  and war risk  policies.  Such insurance  shall
             cover  marine and war  risk perils, on  hull and  machinery, with
             deductibles  not in excess of US$500,000 (such deductibles not to
             apply  in the  case  of Total  Loss  of the  Rig),  and shall  be
             maintained  in  the broadest  forms  available  in the  American,
             British  and  Scandinavian insurance  markets  or  in such  other
             major   international  markets   reasonably  acceptable   to  the
             Administrative Agent.  The Owner shall  maintain, or cause to  be
             maintained,  protection  and indemnity  or  equivalent insurance,
             including  war  risk  protection   and  indemnity  coverage   and
             coverage against pollution liability, in an amount not  less than
             US$100,000,000   (or,   with  respect   to   pollution  liability
             coverage,  such greater amount  as may be  required from  time to
             time  by  the Oil  Pollution  Act  1990, or  other  Environmental
             Laws),  as and  when applicable  to the  Rig and  its operations,
             through   underwriters   or   associations   acceptable   to  the
             Administrative Agent.  In addition, the  Owner shall, at its  own
             expense,  furnish  to  the  Administrative  Agent  a  mortgagee's
             single interest policy providing coverage  which, when aggregated
             with  the   mortgagee's  interest  insurance   furnished  to  the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an  amount equal to at least 110%  of the aggregate amount of the
             Total  Commitment  (or  in  lieu  of  such  mortgagee's  interest
             insurance  Owner shall  cause  the  hull and  machinery/increased
             value  insurance to  be  endorsed to  afford  breach of  warranty
             coverage for  the  benefit of  the Administrative  Agent).   Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies  for the  benefit of the  Administrative Agent  shall be
             maintained  in  the  broadest  form available  in  the  American,
             British  and Scandinavian  markets or  other major  international
             markets   acceptable   to   the   Administrative   Agent  through
             underwriters  acceptable to  the Administrative  Agent.   The Rig
             shall not operate  in or proceed  into any area then  excluded by
             trading  warranties  under  its  marine  or   war  risk  policies
             (including  protection  and  indemnity)   without  obtaining  any
             necessary   additional   coverage,  satisfactory   in   form  and
             substance,  and evidence  of  which shall  be  furnished, to  the
             Administrative Agent.

       (b)   The  policy   or  policies  of  insurance   shall  be  issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and  insuring   covenants   satisfactory  to   the
             Administrative Agent, and shall  be kept in full force and effect
             by the  Owner so long as any Obligations remain outstanding.  All
             such  policies,  binders and  other  interim insurance  contracts
             shall  be executed and issued in the name of the Owner and shall,
             to the extent  required herein, provide  that loss be  payable to
             the Administrative Agent  for distribution  by it to  itself, the
             Banks  and the  Owner as  their interests  may appear,  and shall
             provide for at least  ten days' prior notice  to be given to  the
             Administrative  Agent by  the underwriters or  association in the
             event of  cancellation or  the failure  of the Owner  to pay  any
             premium or call which  would suspend coverage under the policy or
             the payment of a  claim thereunder.  The Administrative Agent and
             the Trustee shall  be named as  co-assureds on all  such policies
             and  insurance   contracts,   but   without  liability   of   the
             Administrative  Agent  or  the  Trustee for  premiums  or  calls.
             Certified copies  of all such policies, binders and other interim
             insurance  contracts shall  be deposited  with the Administrative
             Agent.   Originals shall also be provided upon the request of the
             Administrative   Agent.     The  Owner   shall  furnish   to  the
             Administrative  Agent annually a detailed report signed by a firm
             of marine insurance  brokers satisfactory  to the  Administrative
             Agent  as to the  insurance maintained in respect  of the Rig, as
             to their opinion as to the adequacy thereof and as to  compliance
             with the provisions of this Clause 6.01.

             Unless otherwise required by  the Administrative Agent by  notice
             to the underwriters, although the following  insurance is payable
             to the Administrative Agent,  (i) any loss under any insurance on
             the  Rig with respect  to protection and  indemnity risks  may be
             paid directly to the Owner to  reimburse it for any loss,  damage
             or expense incurred  by it and  covered by  such insurance or  to
             the person to  whom any liability  covered by such  insurance has
             been  incurred and (ii)  in the  case of any  loss (other  than a
             loss covered by (i) above  or by the next following paragraph  of
             this Clause 6.01(b)) under  any insurance with respect to the Rig
             involving any  damage  to  the  Rig,  the  underwriters  may  pay
             directly for  the repair, salvage  or other charges involved  or,
             if the  Owner shall have first fully repaired  the damage or paid
             all  of the  salvage  or  other charges,  may  pay the  Owner  as
             reimbursement  therefor; provided,  however, that  if such damage
             involves a before deductible  loss in excess of US$1,000,000, the
             underwriters shall not make such payment  without first obtaining
             the  written consent  thereto of the  Administrative Agent (which
             consent shall not be  unreasonably withheld).   Any loss  covered
             by this paragraph which is paid  to the Administrative Agent  but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the Administrative  Agent to, or as directed by, the Owner and
             all other  payments to the Administrative Agent of losses covered
             by this paragraph  shall be applied by  the Administrative  Agent
             in accordance with Clause 10.01.

             In the  event  of an  actual  or  constructive Total  Loss  or  a
             compromised constructive Total Loss or requisition  of title, all
             insurance payments therefor shall  be paid to the  Administrative
             Agent.    The  Owner  shall  not   declare  or  agree  with   the
             underwriters  that  the Rig  is  a  constructive or  compromised,
             agreed  or  arranged constructive  Total Loss  without  the prior
             written consent of the Administrative Agent.

       (c)   In  the event of an actual or constructive Total Loss of the Rig,
             the  Administrative  Agent  shall  retain out  of  the  insurance
             payments received on  account of such  loss any sum or  sums that
             shall be  or become  owing  to the  Secured  Creditors under  the
             Security Documents,  whether or  not  the same  be  then due  and
             payable, together with accrued  interest and the cost, if any, of
             collecting  the insurance,  and pay  the  balance as  provided in
             Clause 10.

       (d)   The Owner shall  comply with and satisfy all of the provisions of
             any applicable law, regulation, proclamation  or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and  will maintain,  or cause to  be maintained, all certificates
             or other evidence of financial responsibility as may be  required
             by any such law,  regulation, proclamation or order  with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The  Owner shall renew all insurances as they expire and so as to
             insure that there is  no gap in coverage, keep the Administrative
             Agent advised of the  progress of such renewals, and procure that
             the   insurers  shall   promptly  confirm   in  writing   to  the
             Administrative Agent as and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or other  sums  payable  in  respect of  all  such
             insurances and produce  all relevant receipts when so required by
             the Administrative Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments   of  insurance   aforesaid  relative   to  the   Rig
             (including any warranties,  express or implied,  therein) without
             first  obtaining the  consent of the  insurers to such employment
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants  with  the  Trustee  that  throughout the  Credit
       Facility Period the Owner will:

       (a)   maintain  its existence  as a  corporation in  good standing duly
             organized under the laws of the State of Oklahoma;

       (b)   keep  the Rig documented  in its name  as a  United States vessel
             and to do or allow  to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig in  a good and efficient state  of repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  Self-Elevating  Drilling Unit)  at  the  American Bureau  of
             Shipping free  of recommendations  and qualifications and  change
             of class, save  those notified to and approved  in writing by the
             Trustee  and so  as  to comply  with  all  laws, regulations  and
             requirements  (statutory   or  otherwise)  from   time  to   time
             applicable to vessels documented under the  laws and flag of  the
             United   States  and   applicable  to  vessels   trading  to  any
             jurisdiction to which the Rig may,  subject to the provisions  of
             this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost parts  or equipment be effected  in such manner  (both as
             regards workmanship and quality of materials)  as to not diminish
             the value of the  Rig and not to remove any material  part of, or
             item of  equipment installed on, the Rig  unless the part or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is  in the same condition  as or better  condition than the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner and  subject  to  the  security  constituted  by  this
             Mortgage;

       (f)   submit the  Rig to  such periodical  or other surveys  as may  be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee  and the Administrative Agent copies of all
             survey reports issued in respect thereof;

       (g)   permit  the  representatives  of  the  Administrative  Agent   or
             independent surveyors representing the  Trustee to board the  Rig
             at  all  reasonable times  and  upon  reasonable notice  for  the
             purpose  of  inspecting  her  condition  or for  the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and to afford all proper facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in respect  of the  Rig and  all other  outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig pursuant  to  legal  process, or  in  the  event of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (i)   not employ  the  Rig or  allow  her employment  in any  trade  or
             business  which  is  unlawful  under  the laws  of  any  relevant
             jurisdiction  or in carrying  illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world (whether war be declared  or
             not) not  employ the Rig or suffer her employment in carrying any
             contraband goods  or  to enter  or  trade to  any  zone which  is
             declared  a war  zone  by  any government  or  by the  war  risks
             insurers of the Rig unless there shall have  been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Administrative Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time to  time require  regarding the  Rig,  her employment,
             position  and  engagements,   particulars  of  all  towages   and
             salvages and, upon the  request of the Trustee in writing, copies
             of  all  charters  and  other  contracts  for  her employment  or
             otherwise howsoever concerning her;

       (k)   notify  both the  Trustee and the  Administrative Agent forthwith
             by telex or telecopy thereafter confirmed by letter of:

             (i)     any  casualty  to  th e Rig which is or is likely to be a
                     Major  Casualty, and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss, and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by any  competent  authority
                     which is not immediately complied with, and

             (iv)    any  arrest  of  the  Rig or  the  exercise  or purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire, and

             (v)     any  intended  dry  docking  of the Rig, as to which  the
                     Owner  shall give the Trustee ten (10) days prior notice,
                     provided, that in the event of any emergency dry  docking
                     of  the  Rig,  the  Owner  shall  immediately  notify the
                     Trustee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for normal periods  of inactivity between  contracts
                     for the  Rig during which periods the Rig remains manned)
                     and obtain the prior written consent of the Trustee;

       (l)   keep proper  books of account  in respect of the  Rig and  as and
             when  the Trustee or the  Administrative Agent  may so reasonably
             require make  such books  available for inspection  on behalf  of
             the Trustee and furnish satisfactory evidence  that the wages and
             allotments  and the insurance  of the master  and crew  are being
             regularly  paid  and that  all  deductions from  crew's  wages in
             respect  of  tax  and/or  social  security  liability  are  being
             properly accounted  for and  that  the master  has  no claim  for
             disbursements  other than  those incurred by  him in the ordinary
             course of trading on the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit  Agreement which  apply to the  Rig and the  Owner, and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person for the purpose  of work being done upon
             her in an amount exceeding  or likely to exceed Two Million  Five
             Hundred Thousand  United  States Dollars  (US$2,500,000) (or  the
             equivalent in any  other currency) unless such person shall first
             have given  to the Trustee  and in terms reasonably  satisfactory
             to it a written undertaking  not to exercise any lien on  the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established  by the  Ship Mortgage  Act and  any other  pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid and enforceable  first and  preferred lien upon  the
             Rig  and promptly  to furnish  to the  Trustee from time  to time
             such proof as the Trustee may  request for its satisfaction  with
             respect  to the  Owner's compliance  with the  provisions of this
             sub-clause;

       (p)   place,  and use  due diligence  to retain,  a  properly certified
             copy of this Mortgage on  board the Rig with her papers and cause
             such certified copy  of this Mortgage to be  exhibited to any and
             all persons having  business with the  Rig which might  give rise
             to  any lien thereon other than a  lien for crew's wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and in  the  master's cabin  of the  Rig  a framed  printed
             notice in plain type  in English of such size  that the paragraph
             of reading  matter shall cover  a space  not less  than 6  inches
             wide and 9 inches high reading as follows:


                                       "NOTICE OF MORTGAGE

             This Rig is covered  by a First Preferred Mortgage to CHRISTIANIA
             BANK OG KREDITKASSE,  NEW YORK  BRANCH, as  Security Trustee  for
             the  Banks defined in  the said Mortgage  under authority  of the
             United States Ship Mortgage  Act, 1920, as amended, recodified as
             46 U.S.C.  31301  et seq.  Under the terms  of the said Mortgage
             neither the  Owner nor any charterer  nor the master  of this Rig
             nor  any  other  person has  any  right,  power  or  authority to
             create, incur  or permit  to be  imposed upon this  Rig any  lien
             whatsoever  other  than for  crew's  wages,  general average  and
             salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)   any  Environmental Claim which could reasonably be expected
                   to  result in damages in excess of US$200,000 being or made
                   against the Owner, or otherwise in connection with the Rig;
                   or

             (ii)  any Environmental Incident occurring, and keep the  Trustee
                   advised, in writing on  such  regular  basis  and  in  such
                   detail  as  the  Trustee  shall  require,  of  the  Owner's
                   response  to  such  Environmental  Claim  or  Environmental
                   Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by the  Credit  Agreement) without  the  written consent  of  the
             Trustee  having first been obtained, and any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to  be a waiver  of this provision with  respect to any
             subsequent proposed sale, mortgage  or transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the lien  it creates.  The  Owner shall not  charter
             the Rig to, or permit  the Rig to serve under any  contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or  "specially designated national"
             of  a "designated foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury  Department, 31 C.F.R. Parts 500  and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity" in  the  Libyan
             Sanctions Regulations  of the United  States Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of the  Government of Iraq" or "Iraqi  Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified  at 31  C.F.R. Part 575,  as amended, all  within the
             meaning   of   said   Regulations   or   of   any    regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter any Cuban  port for any purpose or engage  in any
             transaction  that violates  any provision of  said Regulations or
             that   violates  any  provision   of  the   Iranian  Transactions
             Regulations, 31 C.F.R.  Part 560, as amended,  the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or  violation would  (i) expose  the Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary to  law, shall not  abandon the  Rig in a  foreign port,
             shall not  engage in any  unlawful trade  or violate  any law  or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or  capture, and  shall not do,  or suffer or  permit to be done,
             anything which can or may injuriously  affect the registration or
             enrollment  of the  Rig under the  laws of the  United States and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not  bound) at any  time and as  often as may be  necessary to take any
       such  action as it  may in  the reasonable  exercise of  its discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created  by this Mortgage  and the  other Credit  Documents (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if  the Owner does not comply with  the provisions of Clause 6 or
             any of them the Administrative Agent  shall be entitled (but  not
             bound)  to effect  or  to replace  and  renew  and thereafter  to
             maintain the Insurances  in such manner  as in its  discretion it
             may  think fit and  to require that  all policies,  contracts and
             other  records relating  to the Insurances  (including details of
             any  correspondence concerning  outstanding claims)  be forthwith
             delivered  to  such  brokers  as  the  Administrative  Agent  may
             nominate and  to collect,  recover,  compromise and  give a  good
             discharge for all claims  then outstanding or thereafter  arising
             under  the  Insurances  or  any  of  them  and  to  take  over or
             institute  (if necessary using  the name of  the Owner)  all such
             proceedings in  connection therewith as the  Administrative Agent
             in  its absolute  discretion  may think  fit  and  to permit  the
             brokers through whom  the collection or recovery  is effected  to
             charge the usual brokerage therefor; and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but not bound) to arrange for the carrying  out of such
             repairs  to and/or surveys  of the  Rig as it  deems expedient or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h)  or any  of them the  Trustee shall be  entitled (but not
             bound)  to  pay  and  discharge  all  such  debts,   damages  and
             liabilities  and  all  such  tolls,   dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND TRUSTEE'S POWERS

9.01   Upon the  happening of any  of the Events of  Default specified  in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to  the effect that an Event of Default
       has occurred (and whether  prior to or after the Required  Banks having
       served on the Owner any  such notice as is referred to in Section  9 of
       the  Credit Agreement) the security constituted  by this Mortgage shall
       become immediately  enforceable and the  Trustee shall be entitled,  as
       and when it may see fit, to  put into force and exercise all or any  of
       the powers possessed by it as mortgagee  of the Rig or otherwise and in
       particular:

       (a)   to  exercise  all  the rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to take possession of the Rig  whether actually or constructively
             and/or otherwise to take control of the Rig wherever the Rig  may
             be and cause the Owner  or any other person in possession  of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal  process and without  liability of the Trustee  for
             any  losses  or damages  incurred thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered  to or  to  the order  of the  Administrative
             Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure   that  the   Administrative   Agent  collect,   recover,
             compromise  and give  good discharge  for any  and all  moneys or
             claims  for moneys  then outstanding or  thereafter arising under
             the Insurances or any Requisition Compensation  and to permit any
             brokers  through  whom  collection  or recovery  is  effected  to
             charge the usual brokerage therefor;

       (e)   to take  over or  institute (if necessary  using the name  of the
             Owner) or, to the extent lawful, procure  that the Administrative
             Agent take  over or institute all  such proceedings in connection
             with the  Rig, the Insurances, or any Requisition Compensation as
             the  Trustee  in  its  absolute  discretion  thinks  fit  and  to
             discharge,  compound, release  or compromise  claims against  the
             Owner in respect of the Rig which have given or may give rise  to
             any charge or lien on  the Rig or which are or may be enforceable
             by proceedings against the Rig;

       (f)   to  sell the  Rig  or any  share  therein with  or without  prior
             notice to  the Owner free  from any claim of  or by the  Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some  or all of the purchase price be deferred) as the Trustee in
             its absolute discretion may determine with power  to postpone any
             such sale, without  being answerable  for any loss  occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to  purchase the  Rig at any  such public auction  and to set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for the purposes aforesaid  the Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting the  Rig, and the insurance,  management, maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in all respects as  if the Trustee were the owner of  the Rig and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as  may  be incurred  by  the  Trustee  in or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental  to  the  exercise by  it  of  any  of the  powers
             aforesaid.

9.02   The Trustee shall not  be obliged to make any enquiry as  to the nature
       or sufficiency of any payment  received by it under this Mortgage or to
       make  any claim,  take any  action or  enforce any rights  and benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors, nor their  agents, managers, officers,
       employees, delegates  and advisers  shall be  liable  for any  expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with  the exercise  or  purported exercise  of  any rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall not by reason of the taking  possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or be liable  for any loss upon realization or  for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any sale  of the  Rig or  any share  therein by  the Trustee  the
       purchaser  shall not  be bound to  see or enquire  whether the power of
       sale of the Trustee has  arisen in the manner provided in this Mortgage
       and the sale shall be deemed to be within the power of  the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge the purchaser who  shall not be concerned with the  manner of
       application  of  the  proceeds of  sale  or  be in  any  way answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  All moneys received by the  Trustee (or any other Secured Creditor,  as
       the case may be) in respect of sale of the Rig or  any part thereof, in
       respect of recovery under the Insurances  or in respect of  Requisition
       Compensation, shall be applied in the following manner:

       (i)   first, to  the payment of  all amounts owing  the Trustee of  the
             type described in clauses (ii) and (iii) of Recital E;

       (ii)  second,  to  the  extent  moneys  remain  after  the  application
             pursuant  to the  preceding clause  (i), an  amount equal  to the
             outstanding  Obligations shall  be paid to  the Secured Creditors
             as  provided  in  Clause  10.01(c), with  each  Secured  Creditor
             receiving an  amount equal to such Obligations  held by it or, if
             the   proceeds  are  insufficient  to   pay  in   full  all  such
             Obligations, its Pro Rata  Share (as defined below) of the amount
             remaining to be distributed; and

       (iii) third,  to  the  extent  moneys  remain   after  the  application
             pursuant  to the  preceding clauses (i)  and (ii),  and following
             the termination  of this  Mortgage pursuant  to Clause 3.01,  any
             surplus  then  remaining shall  be  paid to  the  Owner, subject,
             however, to  the rights of the  holder of any then  existing Lien
             of which the Trustee has actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then  unpaid amount of such Obligations  owing to or held by such
             Secured  Creditor  and  the  denominator of  which  is  the  then
             outstanding  amount of  all  such Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee shall  be entitled  to request each  Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed  to it  and  shall be  entitled to  reply  upon the  amounts
             stated therein in making such distribution.

       (c)   All payments required to  be made to Secured  Creditors hereunder
             shall be  made  to  the Administrative  Agent  under  the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i) the Administrative Agent under the  Credit Agreement and (ii)
             the   Secured   Creditors  for   a   determination   (which   the
             Administrative  Agent  and   each  Secured  Creditor,   by  their
             acceptance  of the benefits of  this Mortgage  shall be obligated
             to provide  upon  request  of the  Trustee)  of  the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge (including  by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in furnishing  information  pursuant  to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be entitled to assume  that no obligations other than  principal,
             interest and regularly  accruing fees  are owing  to any  Secured
             Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:

       (a)   perfecting or protecting the security created (or  intended to be
             created) by this Mortgage; or

       (b)   preserving  or protecting any  of the rights  of the  Trustee and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the  security constituted by this  Mortgage and the
             covenants and obligations  of the Owner under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner,  by way of security  and in order  more fully to  secure the
       performance   of  the  Obligations,  hereby  irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required)  registering in its name all  documents which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage shall have  become immediately  enforceable pursuant  to
             Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise  of such power as is referred to  in Clause 12.01(a) by or
       on  behalf of the  Trustee shall  not put any  person dealing  with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor shall  such person  be in  any way  affected by  notice
       that this Mortgage  has not become enforceable and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on  the  release of  the Rig  from the  security created  by this
             Mortgage,

       and each of  the Secured Creditors and each such  agent or attorney may
       retain and  pay all sums in  respect of the same  out of money received
       under  the powers  conferred  by  this  Mortgage.    All  such  amounts
       recoverable by such Secured Creditors or  such agent or attorney  shall
       be recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees,  attorneys and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of them, by reason  of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including wrongful death) or property damage  (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement reached;  or  (d)  any violation  of  laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any  applicable law or regulation, and  whether pursuant to a
       judgment being made or  registered against the Owner or the liquidation
       of  the Owner  or  for  any  other  reason, any  payment  under  or  in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than the currency  in which such payment is due  under or in connection
       with  this Mortgage  (the "contractual  currency"), then  to the extent
       that the amount  of such payment actually received by the Trustee, when
       converted into the contractual  currency at the rate of exchange, falls
       short of the amount due under or in connection  with this Mortgage, the
       Owner, as  a separate and  independent obligation, shall indemnify  and
       hold harmless the  Trustee against the  amount of such shortfall.   For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which the Trustee is able on  the date of such payment (or, if it is
       not practicable  for the Trustee  to purchase the contractual  currency
       with the payment currency  on the date of such payment,  at the rate of
       exchange as soon  afterwards as  is practicable for  the Trustee to  do
       so) to purchase the  contractual currency with the payment currency and
       shall take  into account any premium  and other costs  of exchange with
       respect thereto.

14.    EXPENSES

14.01  The Owner shall  pay to any Secured Creditor on  demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the   negotiation,  preparation  and   execution  of  the  Credit
             Agreement, the Subsidiary Guaranty  and the Credit Documents  (or
             any of them); and/or

       (b)   the  preserving  or enforcing  of, or  attempting to  preserve or
             enforce, any  of  its  rights  under the  Credit  Agreement,  the
             Subsidiary Guaranty or the Credit Documents (or any of them).

14.02  The  Owner shall  pay to  the Trustee  and the Administrative  Agent on
       demand  all costs, fees  and expenses (including,  but not  limited to,
       legal  fees and  expenses) and  Taxes thereon  incurred by  any Secured
       Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of  the Credit  Agreement, the Subsidiary  Guaranty or  the
             Credit  Documents  (or  any of  them)  requested  by  the  Owner,
             necessary or  advisable under  applicable law or  relating to the
             syndication of the Facility,  or initiated during the  occurrence
             and continuation of an Event of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the  Credit  Agreement, the  Subsidiary Guaranty  and  the Credit
             Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty and the Credit  Documents (or any of  them) may be subject  or
       give  rise and shall  indemnify the Trustee  on demand  against any and
       all  liabilities with  respect  to  or  resulting  from  any  delay  or
       omission on the part of the Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All  notices to the Trustee hereunder shall  be in writing and shall be
       made to the following address:

                   Christiania Bank og Kreditkasse, New York Branch
                   11 West 42nd Street
                   7th Floor
                   New York, New York  10036
                   Telefax:  (212) 827-4888
                   Attention:  Loan Administration

       All  other notices  shall  be made  to  the addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors  and permitted assigns  and references  in this  Mortgage to
       any of them shall be construed accordingly.

16.02  The Owner  may not assign  or transfer  all or any  part of  its rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.04 of the  Credit Agreement, each Bank  has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations  under the Credit Agreement  on the terms therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this  Mortgage is  Three Hundred Million  U.S. Dollars (US$300,000,000)
       of  principal  plus  interest,  fees, commissions  and  performance  of
       mortgage  covenants.  The  interest of  the Owner in  the Rig  is 100%.
       The  interest of the Trustee in the  Rig is 100%.  The date of maturity
       is  November 13,  2001, and  the discharge  amount is  the same  as the
       total amount plus such  other sums as shall be payable by  the Owner to
       the Banks under the Credit Agreement or the Subsidiary Guaranty.

18.    MISCELLANEOUS

18.01  If at  any time any one  or more of the provisions  in this Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability of  the
       remaining  provisions of this Mortgage shall not be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time and  from time to time, may delegate by  power
       of attorney or in any other manner to any person or persons  all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such delegation may  be made upon such terms and  subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in  any way liable or responsible  to the Owner for  any loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for in this Mortgage shall, in  the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The Owner agrees that the  Trustee shall have the liberty but shall not
       be obliged  to take any  proceedings in  the courts  of any country  to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose of any  proceedings for such enforcement the  Owner
       hereby submits to the jurisdiction of the courts of  any country of the
       choice of the Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place  the Rig shall be  found lying and for  the purpose of any action
       which the Trustee may  bring before the courts of such  jurisdiction or
       other judicial authority  and for the purpose  of any action which  the
       Trustee may bring against the Rig, any writ, notice, judgment  or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner  agrees that  should the  Trustee  bring a  legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out of or  in connection with  this Mortgage, no immunity  from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without  limitation,   suit,  attachment   prior  to  judgment,   other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of the  Owner or with respect of  its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the  Owner hereby consents generally in respect  of any legal action or
       proceedings arising out of  or in connection with this Mortgage  to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever  of any order or judgment which may be made or given in such
       action or proceedings.


IN WITNESS  whereof the Owner has caused this Mortgage  to be executed the day
and year first before written.

READING & BATES OFFSHORE, LIMITED


By_____________________________________
    Name:  T.W. Nagle
    Title:  Vice President and Treasurer




                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle to  me known  who being  by me duly  sworn did  depose and  say that  he
resides at  13307  Tosca Lane,  Houston, TX;  that he  is  Vice President  and
Treasurer for  READING & BATES OFFSHORE, LIMITED, the corporation described in
and  which executed  the foregoing  instrument; and  that he  signed his  name
thereto by  order  of the  Board of  Directors of  READING  & BATES  OFFSHORE,
LIMITED.


                                 ___________________
                                 Notary Public


                                                                Exhibit 10.126



                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996


                         READING & BATES DRILLING CO.

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee


                                  J. T. ANGEL

==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTER                                   PAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . . . 9 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
      9     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS . . . . . . . .  19 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

      ACKNOWLEDGEMENT OF MORTGAGE
      EXHIBIT 1 FORM OF CREDIT AGREEMENT

==============================================================================

THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 13th day  of
November, 1996

BY

(1)    READING  &  BATES DRILLING  CO.,  an  Oklahoma  corporation having  its
       principal offices at 901  Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"), 

IN FAVOR OF

(2)    CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK BRANCH, a  Norwegian banking
       corporation  having its office  at 11 West  42nd Street,  New York, New
       York, as  security trustee for  the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is  the sole owner of the  whole of the jack-up  drilling rig
       J. T. ANGEL documented under the laws and flag of  the United States of
       America with Official Number 651645 of 4,186  gross registered tons and
       3,090 net registered tons (the "Rig").

(B)    By  a Credit  Agreement dated  as of  November  13, 1996  (as modified,
       amended  or supplemented  from time  to time,  the  "Credit Agreement")
       among  (i)  Reading  &  Bates   Corporation,  a  Delaware  corporation,
       ("Holdings"),  (ii)  the  Owner,  as borrower,  (iii)  the  banks party
       thereto (the "Banks"),  (iv) Credit Lyonnais New York Branch and Banque
       Indosuez, as documentation agents (the  "Documentation Agents") and (v)
       the Trustee,  as administrative  agent, arranger  and security  trustee
       (in  such  capacity, the  "Administrative  Agent") (the  form  of which
       Credit Agreement  together  with  Exhibit  B thereto  but  without  the
       remaining attachments is attached hereto  as Exhibit 1), it  was agreed
       among other  things that the  Banks would  make available to  the Owner
       upon the  terms and conditions  therein described a reducing  revolving
       credit facility (the  "Facility") in an  aggregate amount  at any  time
       outstanding   of    Three   Hundred   Million   United States   Dollars
       (US$300,000,000), providing  for the making of  Loans and  the issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The  obligations  of  the  Owner  with  respect  to  the  Facility  are
       evidenced by  the  Credit Agreement  and  the other  Credit  Documents,
       including  the promissory  notes of the  Owner payable to  the order of
       the respective Banks  (each a "Note" and collectively the "Notes") (the
       form of which is attached as Exhibit B to the Credit Agreement). 

(D)    This Mortgage  is made for the benefit of the Trustee to secure (i) the
       full and prompt payment when due  of (x) the principal of and  interest
       on  the Notes issued,  and Loans made, under  the Credit Agreement, and
       all reimbursement  obligations and Unpaid Drawings  with respect to the
       Letters of Credit issued under  the Credit Agreement and (y)  all other
       obligations    and   indebtedness    (including   without   limitation,
       indemnities, Fees and  interest thereon) of  the Owner  to the  Secured
       Creditors (as hereinafter  defined), whether now existing  or hereafter
       incurred  under,  arising out  of  or  in  connection  with the  Credit
       Agreement   and  the   other   Credit   Documents  including,   without
       limitation, this Mortgage  and the  due performance  and compliance  by
       the Owner  with all of  the terms, conditions  and agreements contained
       in  the  Credit Agreement  and  the other  Credit  Documents including,
       without limitation,  this Mortgage; (ii)  any and all  sums advanced by
       the  Trustee  in  order  to  preserve the  Collateral  (as  hereinafter
       defined) or preserve  its security interest in the Collateral; (iii) in
       the event  of any proceeding  for the collection or  enforcement of any
       indebtedness, obligations, or  liabilities of the Owner referred  to in
       clause (i) above, after an Event of Default shall have occurred and  be
       continuing,  the  reasonable  expenses of  the  Trustee  of  re-taking,
       holding,  preparing for sale or  lease, selling  or otherwise disposing
       of or realizing  on the Collateral, or  of any exercise by  the Trustee
       of its  rights hereunder, together  with reasonable attorneys' fees  of
       counsel to the  Trustee and court costs;  and (iv) all amounts  paid by
       any  Indemnitee  as  to  which   such  Indemnitee  has  the   right  to
       reimbursement under Clause 13 of  this Mortgage (all such  obligations,
       liabilities, sums and  expenses referred to in clauses (i) through (iv)
       above being  collectively referred  to as  the "Obligations").   It  is
       acknowledged   and  agreed   that   the  "Obligations"   shall  include
       extensions of  credit of the types described above, whether outstanding
       on the date  of this Mortgage or  extended from time to time  after the
       date of this Mortgage.  

(E)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration  of the Banks agreeing,  at the request  of the Owner, to
       make the Facility available  to the Owner under the terms of the Credit
       Agreement and  as a condition thereto  and for other good  and valuable
       consideration  provided by  the  Banks (the  sufficiency  of which  the
       Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage  unless the context otherwise requires,  the following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank"  means any  lender listed from  time to time  on Annex  I to the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the  same meaning for such term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the Credit  Agreement, dated  as of  November
       13,  1996,  among Holdings,  the  Owner, the  Banks,  the Documentation
       Agents and  the Administrative Agent  first referred to  in Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents"  shall have the meaning  for such term as  set forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no Letters  of Credit remain outstanding  and the Loans and  the Unpaid
       Drawings, together with interest,  fees and  all other obligations  are
       paid in full;

       "Default  Rate"  shall  mean   the  rate  of  interest  calculated   in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal reports  prepared  by  Holdings  or any  of  its  Subsidiaries
       solely in  the ordinary course  of such  Person's business  and not  in
       response  to  any third  party  action  or  request  of  any  kind)  or
       proceedings relating in any way to any  Environmental Law or any permit
       issued,  or  any  approval  given,  under any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by    any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release of  Environmentally
       Sensitive  Material   from  the  Rig,  (ii)   any  incident   in  which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than  the Rig and  which involves  collision between  the Rig  and such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which Environmentally  Sensitive Material is released from  a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing  and the  like, into  or  upon any  land  or water  or air,  or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule of common  law now or hereafter in effect and in  each case as
       amended, and  any judicial  or  administrative interpretation  thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials, including,  without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act, as amended, 33 U.S.C.   1251 et seq.; the
       Toxic Substances Control Act, 15 U.S.C.   7401 et seq.; the Clean  Air
       Act,  42 U.S.C.  7401 et seq.;  the Safe Drinking Water Act, 42 U.S.C.
       3808 et seq.;  the Oil  Pollution Act of  1990, 33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees"  shall have the same  meaning for such term  as set forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable, urea  formaldehyde  foam  insulation,  transformers  or  other
       equipment  that   contained,  electric   fluid  containing   levels  of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous  waste,"  "restricted hazardous  waste,"  "toxic substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental  Law; and  (c) any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect of the  Rig or otherwise by the Owner  (whether
       in the sole name  of the Owner or in the  joint names of the Owner  and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest  Period" shall  have the same  meaning for  such term  as set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of  Credit" shall have  the same meaning  for such term as  set
       forth in Section 2.01(a) of the Credit Agreement; 

       "Loan(s)" shall  have the same  meaning for such  term as set forth  in
       the Credit Agreement;

       "Major Casualty" means  any casualty to the Rig  in respect whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means each promissory  note of the Owner referred to  in Recital
       (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (D) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C. 
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       jack-up  drilling  rig  D.  R.   STEWART  owned  by  Reading   &  Bates
       Exploration Co. ("R&B Exploration") documented under the laws and  flag
       of  the  United States  with  Official  Number  626904  of 6,494  gross
       registered tons  and  5,834  net registered  tons;  (ii)  the  offshore
       drilling rig W.  D. KENT owned by R&B  Exploration documented under the
       laws and  flag of  the United  States  with Official  Number 583169  of
       5,383 gross  registered tons and  4,185 net registered  tons; (iii) the
       offshore drilling rig  CHARLEY GRAVES owned by Reading and Bates Borneo
       Drilling Co., Ltd. documented under  the laws and flag of the  Republic
       of  Panama  with Patente  Number 6618-76-CH  of 5,829  gross registered
       tons and 1,748 net  registered tons; (iv) the jack-up  drilling rig RON
       TAPPMEYER owned  by Reading & Bates  (A) Pty Ltd.  documented under the
       laws and flag  of Australia with Official Number 855213 of 11,455 gross
       registered  tons  and   3,436  net  registered  tons;  (v)   the  semi-
       submersible drilling rig  J. W. McLEAN  owned by  the Owner  documented
       under the  laws and flag of the Republic  of Panama with Patente Number
       25384-PEXT  of 15,453  gross registered tons  and 4,636  net registered
       tons; (vi) the semi-submersible  drilling rig RIG 41 owned by the Owner
       documented under  the laws and flag of the  Republic of Panama with the
       Patente  Number  to be  assigned on  the  date hereof  of  10,078 gross
       registered  tons  and 3,024  net  registered  tons;  (vii) the  jack-up
       drilling rig HARVEY  H. WARD owned  by HRB  Rig Corporation  documented
       under the laws and  flag of the United States of  America with Official
       Number 642693 of 4,121 gross  registered tons and 3,079  net registered
       tons;  (viii)  the jack-up  drilling  rig  F.  G.  McCLINTOCK owned  by
       Reading &  Bates Offshore, Limited  documented under the  laws and flag
       of the United  States of America  with Official Number 562059  of 5,525
       gross registered tons  and 1,657 net  registered tons;  (ix) the  semi-
       submersible  drilling rig  JACK  BATES owned  by  the Owner  documented
       under the laws and flag of  the United States of America with  Official
       Number   906283  of  19,928  gross  registered   tons  and  14,948  net
       registered tons;  (x) the jack-up  drilling rig RANDOLPH  YOST owned by
       the Owner documented  under the laws and  flag of the United  States of
       America with Official  Number 601699 of 4,701 gross registered tons and
       4,701  net registered  tons;  (xi) the  jack-up  drilling rig  ROGER W.
       MOWELL  owned by the  Owner documented under the  laws and  flag of the
       United States of  America with Official  Number 645360  of 4,121  gross
       registered tons  and  3,079  net  registered tons;  (xii)  the  jack-up
       drilling rig  GEORGE H.  GALLOWAY owned  by Reading  & Bates  Offshore,
       Limited  documented under  the laws and  flag of  the United  States of
       America with Official  Number 651646 of 3,729 gross registered tons and
       2,496 net  registered tons; and (xiii)  the jack-up drilling  rig C. E.
       THORNTON to  be owned by HRB Rig Corporation  documented under the laws
       and flag  of the United States  of America with Official  Number 673210
       of 6,096 gross registered tons and 6,096 net registered tons;

       "Permitted  Liens" means:  (1) liens  incident to  expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being contested  in good faith, provided
       such liens are  not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a bond or other  security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable; (3)  liens for  taxes, assessments,  governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested in  good faith,  provided  such liens  are not  in excess  of
       U.S.$5,000,000.00, and  if  in excess  thereof, then  the Owner  shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security  satisfactory to the Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause 6  hereof (except that  no lien shall be  deemed
       not covered by insurance to the  extent insurance in force would  cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant to  any judgment  or to an  order of attachment,  distraint or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the  payment  or  discharge of  which  provisions  satisfactory to  the
       Administrative Agent have been made as evidenced by the  Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to the lien of  this Mortgage or (ii) constitute a maritime
       lien which would in  any event be entitled as such to priority over the
       Mortgage under  the United  States shipping  laws  or other  applicable
       laws relating to  the Rig's trading  pattern.  Nothing herein  shall be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection and  indemnity  risks" means  the  usual risks  covered  by
       protection   and   indemnity  associations   of   international  repute
       including the  proportion not  recoverable in  case of collision  under
       the ordinary running-down clause (unless such is recoverable  under the
       relevant hull and machinery coverage);

       "Requisition Compensation"  means  all  moneys  or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig"  means the vessel  described in Recital  (A) hereto  and includes
       any share  or  interest  therein and  her  engines,  machinery,  boats,
       tackle,  outfit,  spare  gear,   fuel,  consumable  or  other   stores,
       belongings and  appurtenances whether  on board  or ashore  and whether
       now  owned or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit Issuer and the Administrative Agent under  and as defined in the
       Credit Agreement;

       "Security Documents" shall have the  same meaning for such term  as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes" shall  have the same meaning for such  term as set forth in the
       Credit Agreement;

       "Total  Commitment" shall  have the same  meaning for such  term as set
       forth in the Credit Agreement;

       "Total  Loss" means (a) the actual,  constructive, arranged, agreed, or
       compromised Total Loss  of the Rig;  (b) the requisition  for title  or
       other compulsory  acquisition or  forfeiture of the  Rig otherwise than
       by requisition for hire;  (c) the  capture, seizure, arrest,  detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting to  act  on behalf  of  any  government unless  the  Rig  be
       released from such capture, seizure, arrest or  detention within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing" shall  have the  same meaning  for such  term  as set
       forth in the Credit Agreement;

       "War Risks" includes the risk of mines and all  risks excluded from the
       standard form  of English  marine policy  by  the free  of capture  and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified,  all  references to  Clauses  are to  clauses  of this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references    to   persons    include   bodies    corporate   and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to  any enactment  include  re-enactments, amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the Owner is the sole  legal and beneficial owner of the whole of
             the Rig  and  neither the  whole  nor any  share  in the  Rig  is
             subject to any Security  Interest (except for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has  not sold  or transferred,  or agreed  to sell  or
             transfer, title to the Rig or any share therein; 

       (c)   the  Owner is  a corporation duly  organized and validly existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the Owner  has full power  and authority (i) to  register the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner  has complied  with all  statutory and  other material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig; 

       (f)   the  Owner  has  taken all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner enforceable against  the Owner in accordance with its terms
             (except  to   the  extent   limited  by  applicable   bankruptcy,
             reorganization, insolvency, moratorium  or other laws  of general
             application   relating  to   or  affecting   the  enforcement  of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's National  Vessel Documentation  Center in  Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect (i) any  law or regulation of any  governmental or
             official authority  or  body, or  (ii)  any of  the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is  a party or which  is binding upon the Owner  or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection   with  the  entry  into,  performance,  validity  and
             enforceability   of   this   Mortgage    and   the   transactions
             contemplated  hereby and thereby  have been  obtained and  are in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this  Mortgage, it is not  necessary for  the legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that it  or any document  relating thereto be registered,  filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction  or that any stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws and all  Environmental Approvals  relating to  the Rig,  its
             operation and management  and the business  of the Owner  (as now
             conducted and as  reasonably anticipated to be  conducted in  the
             future) have been obtained or complied with;

       (k)   no Environmental Claim has  been made  or threatened against  the
             Owner, the Approved Manager or  otherwise in connection with  the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably  be expected to result,  in an  Environmental Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall survive the execution of this Mortgage and shall  be deemed to be
       repeated at the time of the making  of each Loan and at the time of the
       issuance  of each  Letter  of Credit,  with  respect to  the facts  and
       circumstances existing  at each  such time,  as if  made  at each  such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto  the Trustee, its successors and assigns,  the whole of the Rig TO
       HAVE  AND TO HOLD the same unto the Trustee, its successors and assigns
       forever upon  the terms  herein set  forth for  the enforcement  of the
       Obligations.

       Provided only and the condition  of these presents is such that  if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been  performed in  full as  and  when the  same shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in  the Subsidiary Guaranty and  this Mortgage
       expressed or implied to be performed, observed  or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or fraud  and according to  the true intent and  meaning thereof,
       then  these presents and  the rights  hereunder shall  cease, determine
       and be void  otherwise to be and remain  in full force and  effect and,
       in such  event, the indenture Trustee  agrees to execute and  record at
       the  expense  of  the  Owner,  all such  documents  as  the  Owner  may
       reasonably require to discharge this Mortgage.  
       Notwithstanding  anything to  the contrary  herein  it is  not intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of  this Mortgage  and that  if any  provision or  part  thereof herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig  and none of the Secured  Creditors shall
       be under  any obligation of any  kind whatsoever in respect  thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors   for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges  or other  moneys as are  stated in  this Mortgage  to be
             payable by  the Owner  to or  recoverable from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to  indemnify any of  the Secured Creditors  at the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees,  charges or other moneys referred to
             in Clause 4.01(a)  from the date on  which demand is made  by any
             Secured  Creditor as the case may be, for payment by the Owner of
             the  relevant expense,  claim, liability, loss,  cost, duty, fee,
             charge or other money  incurred by any Secured Creditor for which
             the  Owner is  responsible (both  before and  after any  relevant
             judgment) at the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing to any Secured Creditor under  this Mortgage and the  other
             Credit Documents to  which the Owner is  or is to  be a party  at
             the times and in the manner specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be  prejudiced or affected by  any of the other  Security
             Documents;

       (c)   the Trustee shall not  have to wait for the Administrative Agent,
             the Banks or the  Letter of Credit Issuer  to enforce any of  the
             other  Security Documents  before enforcing  the security created
             by this Mortgage;

       (d)   no delay or  omission on the  part of  the Trustee in  exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power  or remedy or be  construed as a waiver  thereof nor
             shall any single or partial exercise of any  such right, power or
             remedy  preclude any further exercise thereof  or the exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given in  writing and then only for the  purpose and
             upon the terms for which it is given.

5.02   Any  settlement or discharge  under this  Mortgage between  the Trustee
       and  the Owner shall be conditional upon  no security or payment to the
       Secured  Creditors or any of  them by  the Credit Parties  or any other
       person being avoided or  set-aside or ordered to be refunded or reduced
       by  virtue  of  any provision  or  enactment  relating  to  bankruptcy,
       insolvency,  administration or liquidation for  the time being in force
       and, if such condition is not satisfied, the Trustee shall  be entitled
       to  recover from the Owner on demand the  value of such security or the
       amount of any  such payment as if such settlement  or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall   not  be  affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair, affect  or discharge such rights  and security, in  whole or
       in part, including without  limitation, and whether or not known  to or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:

       (a)   any  time or waiver  granted to the  Credit Parties  or any other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit  Parties  or any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit  Documents (other  than this Mortgage)  or any other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or  frustration   of   any
             obligations  of any  of the  Credit Parties  or any  other person
             under the  Credit Agreement,  any of  the other  Credit Documents
             (other than this Mortgage) or any other document or security.

5.04   Until the Obligations have been satisfied  in full to the  satisfaction
       of  the Trustee,  the Owner  shall not  by virtue  of any  payment made
       hereunder  on  account  of  the  Obligations   or  by  virtue  of   any
       enforcement  by  the  Trustee of  its  rights  under,  or  the security
       constituted  by,  this  Mortgage  or  by  virtue  of  any  relationship
       between,  or  transaction involving,  the Owner  and  Holdings (whether
       such relationship or transaction shall constitute the Owner  a creditor
       of Holdings, a  guarantor of  the obligations  of Holdings  or a  party
       subrogated  to  the  rights of  others  against  Holdings  or otherwise
       howsoever and whether or  not such relationship or transaction shall be
       related  to,  or  in  connection  with,  the  subject  matter  of  this
       Mortgage):

       (a)   exercise  any rights of  subrogation in  relation to  any rights,
             security or moneys held  or received or receivable by the Secured
             Creditors or any other person; or

       (b)   be entitled  to  exercise  any  right of  contribution  from  any
             co-surety liable  in respect of such moneys and liabilities under
             any other guaranty, security or agreement; or

       (c)   exercise  any right  of set-off or  counterclaim against Holdings
             or any such co-surety; or

       (d)   receive, claim or have the benefit  of any payment, distribution,
             security or indemnity from Holdings or any such co-surety; or

       (e)   unless so  directed by the Trustee (when the  Owner will prove in
             accordance  with  such  directions),  claim  as   a  creditor  of
             Holdings or any such co-surety in competition with the Trustee.

       The  Owner shall  hold in  trust for the  Trustee and  forthwith pay or
       transfer (as  appropriate) to the Trustee  any such  payment (including
       an amount equal to  any such set-off), distribution or benefit  of such
       security, indemnity or claim in fact received by it.

5.05   The Owner  unconditionally  and irrevocably  agrees  that if  any  sums
       hereby secured are  not recoverable on the basis of a guaranty (whether
       by reason of legal limitation, illegality,  disability or incapacity on
       or of Holdings  or the Owner or  any other person or  by reason of  any
       other  fact  or   circumstance,  and  whether   or  not  known   to  or
       discoverable by the Owner,  Holdings, the Trustee or any other person),
       then the Owner will, as  a separate and independent stipulation  and as
       a primary obligor, pay  to the Trustee on  demand an amount or  amounts
       equal  to the amount or amounts which  the Owner would have been liable
       to pay but for such  irrecoverability and will on demand indemnify  the
       Trustee against  any loss  or  liability suffered  or  incurred by  the
       Secured Creditors or any of them as a result of such irrecoverability.

6.     INSURANCE

6.01   The Owner  covenants with  the Trustee  throughout the Credit  Facility
       Period that:

       (a)   The Owner  shall, at its  own expense,  when and  so long as  any
             Obligations  remain  outstanding, insure  the  Rig  and keep  her
             insured,  or cause the Rig to be  insured, in lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and indemnity  risks,  pollution  liability, and  war
             risks), in such form  (including without limitation, the  form of
             the loss payable  clause and the designation  of named  assureds)
             and  with  such first  class  insurance companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect   to  hull   and  machinery/increased   value  insurance,
             including war risk, the Owner shall  insure the Rig and keep  her
             insured, or cause the Rig  to be insured, for an amount  which is
             at least  the full  commercial value  of the Rig,  and when  such
             amount is aggregated with  the amount of such  insurance coverage
             on the Other  Rigs, such aggregate amount shall  be at least 110%
             of the Total Commitment.   The Rig shall  in no event be  insured
             for  an amount less than the agreed valuation as set forth in the
             applicable marine and war  risk policies.   Such insurance  shall
             cover  marine and war  risk perils, on  hull and  machinery, with
             deductibles not in excess of US$500,000  (such deductibles not to
             apply  in  the case  of  Total Loss  of  the Rig),  and  shall be
             maintained  in  the broadest  forms  available  in the  American,
             British  and  Scandinavian insurance  markets  or  in such  other
             major   international  markets   reasonably  acceptable   to  the
             Administrative Agent.  The Owner shall  maintain, or cause to  be
             maintained,  protection and  indemnity  or equivalent  insurance,
             including  war  risk   protection  and  indemnity   coverage  and
             coverage against pollution  liability, in an amount not less than
             US$100,000,000   (or,  with   respect   to  pollution   liability
             coverage,  such greater amount  as may be  required from  time to
             time by  the  Oil  Pollution  Act 1990,  or  other  Environmental
             Laws),  as and  when applicable  to the  Rig and  its operations,
             through   underwriters   or   associations  acceptable   to   the
             Administrative Agent.  In addition, the  Owner shall, at its  own
             expense,  furnish  to  the  Administrative  Agent  a  mortgagee's
             single interest policy  providing coverage which, when aggregated
             with   the  mortgagee's  interest   insurance  furnished  to  the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an amount equal to at  least 110% of the aggregate amount  of the
             Total  Commitment  (or  in  lieu  of  such  mortgagee's  interest
             insurance  Owner shall  cause  the  hull and  machinery/increased
             value  insurance  to be  endorsed  to afford  breach  of warranty
             coverage  for the  benefit of  the Administrative  Agent).   Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies  for the benefit  of the  Administrative Agent  shall be
             maintained  in  the  broadest  form available  in  the  American,
             British  and Scandinavian  markets or  other major  international
             markets   acceptable   to   the  Administrative   Agent   through
             underwriters  acceptable to  the Administrative  Agent.   The Rig
             shall not operate  in or proceed into  any area then  excluded by
             trading  warranties  under  its  marine  or   war  risk  policies
             (including   protection  and  indemnity)  without  obtaining  any
             necessary   additional  coverage,   satisfactory   in  form   and
             substance,  and  evidence of  which  shall be  furnished,  to the
             Administrative Agent.

       (b)   The  policy  or  policies   of  insurance  shall  be   issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and  insuring   covenants   satisfactory  to   the
             Administrative Agent, and shall  be kept in full force and effect
             by  the Owner so long as any Obligations remain outstanding.  All
             such policies,  binders  and  other interim  insurance  contracts
             shall be executed and issued in the name of  the Owner and shall,
             to the extent  required herein, provide  that loss be  payable to
             the  Administrative Agent for distribution  by it  to itself, the
             Banks  and the  Owner as  their interests  may appear,  and shall
             provide for at least  ten days' prior notice  to be given to  the
             Administrative  Agent by  the underwriters or  association in the
             event of  cancellation or  the failure  of the Owner  to pay  any
             premium or call which  would suspend coverage under the policy or
             the payment of a  claim thereunder.  The Administrative Agent and
             the Trustee shall  be named as  co-assureds on all  such policies
             and   insurance   contracts,  but   without   liability   of  the
             Administrative  Agent  or  the  Trustee for  premiums  or  calls.
             Certified copies of all  such policies, binders and other interim
             insurance contracts shall  be deposited  with the  Administrative
             Agent.  Originals shall also be provided upon the request of  the
             Administrative   Agent.     The  Owner   shall  furnish   to  the
             Administrative Agent annually  a detailed report signed by a firm
             of marine  insurance brokers satisfactory  to the  Administrative
             Agent as to  the insurance maintained in  respect of the Rig,  as
             to their opinion as to the adequacy thereof and as  to compliance
             with the provisions of this Clause 6.01.

             Unless otherwise required by  the Administrative Agent by  notice
             to the underwriters, although the following  insurance is payable
             to the Administrative Agent,  (i) any loss under any insurance on
             the  Rig with respect  to protection and  indemnity risks  may be
             paid directly to the Owner  to reimburse it for any  loss, damage
             or expense  incurred by it  and covered by  such insurance  or to
             the person to  whom any liability  covered by such  insurance has
             been incurred  and (ii) in  the case  of any  loss (other than  a
             loss covered  by (i) above or by  the next following paragraph of
             this Clause 6.01(b)) under  any insurance with respect to the Rig
             involving  any  damage  to  the  Rig, the  underwriters  may  pay
             directly for the repair,  salvage or  other charges involved  or,
             if the Owner shall  have first fully repaired the damage  or paid
             all  of  the  salvage or  other  charges,  may pay  the  Owner as
             reimbursement  therefor; provided, however,  that if  such damage
             involves a before deductible loss in excess of US$1,000,000,  the
             underwriters shall not make such payment  without first obtaining
             the  written consent  thereto of the  Administrative Agent (which
             consent shall  not be unreasonably  withheld).  Any loss  covered
             by this paragraph which is paid  to the Administrative Agent  but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the  Administrative Agent to, or as directed by, the Owner and
             all other payments to  the Administrative Agent of losses covered
             by this  paragraph shall be  applied by the Administrative  Agent
             in accordance with Clause 10.01.

             In  the  event of  an  actual  or constructive  Total  Loss  or a
             compromised constructive Total Loss or requisition  of title, all
             insurance payments therefor shall  be paid to the  Administrative
             Agent.    The  Owner  shall  not   declare  or  agree  with   the
             underwriters  that  the Rig  is  a  constructive or  compromised,
             agreed  or  arranged constructive  Total Loss  without  the prior
             written consent of the Administrative Agent.

       (c)   In the event of an actual or constructive Total  Loss of the Rig,
             the  Administrative  Agent  shall  retain out  of  the  insurance
             payments received  on account of  such loss any sum  or sums that
             shall be  or become  owing  to the  Secured  Creditors under  the
             Security Documents,  whether or  not  the same  be  then due  and
             payable, together with accrued  interest and the cost, if any, of
             collecting  the insurance,  and pay  the balance  as  provided in
             Clause 10. 

       (d)   The Owner  shall comply with and satisfy all of the provisions of
             any applicable law, regulation, proclamation or  order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will maintain,  or cause  to be maintained,  all certificates
             or other  evidence of financial responsibility as may be required
             by  any such law, regulation, proclamation  or order with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The Owner shall renew all insurances as they expire  and so as to
             insure that there is  no gap in coverage, keep the Administrative
             Agent advised of the  progress of such renewals, and procure that
             the   insurers  shall   promptly  confirm   in  writing   to  the
             Administrative Agent as and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or  other sums  payable  in  respect of  all  such
             insurances and produce all relevant receipts when so  required by
             the Administrative Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner  shall not  employ the  Rig or  suffer  the Rig  to be
             employed  otherwise than  in  conformity with  the  terms of  the
             instruments   of  insurance   aforesaid   relative  to   the  Rig
             (including any  warranties, express or implied,  therein) without
             first obtaining  the consent of the  insurers to  such employment
             and complying  with  such requirements  as  to extra  premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The Owner  covenants  with  the  Trustee  that  throughout  the  Credit
       Facility Period the Owner will:

       (a)   maintain its existence  as a  corporation in  good standing  duly
             organized under the laws of the State of Oklahoma;

       (b)   keep the Rig  documented in its  name as  a United States  vessel
             and to do or  allow to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig  in a good and efficient  state of repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  Self-Elevating  Drilling Unit)  at  the  American Bureau  of
             Shipping free  of recommendations  and qualifications  and change
             of class,  save those notified to and  approved in writing by the
             Trustee  and so  as  to comply  with  all  laws, regulations  and
             requirements  (statutory   or  otherwise)   from  time  to   time
             applicable to vessels documented under the  laws and flag of  the
             United   States  and   applicable  to  vessels   trading  to  any
             jurisdiction to which the Rig may,  subject to the provisions  of
             this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost  parts or equipment be  effected in such manner  (both as
             regards workmanship  and quality of materials) as to not diminish
             the value of the Rig  and not to remove any material part  of, or
             item of equipment installed  on, the Rig unless the  part or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is in the  same condition as or  better condition than  the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner  and  subject  to  the  security constituted  by  this
             Mortgage;

       (f)   submit  the Rig  to such  periodical or  other surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee  and the Administrative Agent copies of all
             survey reports issued in respect thereof;

       (g)   permit  the  representatives  of  the   Administrative  Agent  or
             independent surveyors representing the  Trustee to board the  Rig
             at  all  reasonable times  and  upon  reasonable notice  for  the
             purpose  of  inspecting  her  condition  or for  the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and to afford all proper facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged on  or in  respect of  the Rig  and  all other  outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig  pursuant to  legal  process,  or in  the  event of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require; 

       (i)   not employ  the  Rig or  allow her  employment  in any  trade  or
             business  which  is  unlawful  under  the laws  of  any  relevant
             jurisdiction  or in carrying  illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world (whether  war be declared or
             not) not employ the Rig or suffer her employment in  carrying any
             contraband goods  or  to enter  or  trade to  any zone  which  is
             declared  a war  zone  by any  government  or  by the  war  risks
             insurers of the Rig unless  there shall have been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Administrative Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time  to time  require regarding  the Rig,  her employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages and, upon the  request of the Trustee in writing, copies
             of  all charters  and  other  contracts  for  her  employment  or
             otherwise howsoever concerning her;

       (k)   notify  both the  Trustee and the  Administrative Agent forthwith
             by telex or telecopy thereafter confirmed by letter of:

             (i)     any  casualty  to  the Rig which is or is likely to be  a
                     Major  Casualty, and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss, and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by  any competent  authority
                     which is not immediately complied with, and

             (iv)    any  arrest of  the  Rig  or  the exercise  or  purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire, and

             (v)     any  intended  dry  docking  of the Rig, as to  which the
                     Owner  shall give the Trustee ten (10) days prior notice,
                     provided, that in the event of any emergency  dry docking
                     of  the  Rig,  the  Owner  shall immediately  notify  the
                     Trustee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for  normal periods of inactivity  between contracts
                     for the Rig during which  periods the Rig remains manned)
                     and obtain the prior written consent of the Trustee;

       (l)   keep  proper books of account  in respect  of the Rig  and as and
             when the Trustee  or the Administrative Agent  may so  reasonably
             require make  such books  available for  inspection on behalf  of
             the Trustee and furnish satisfactory evidence that the  wages and
             allotments  and the insurance  of the master  and crew  are being
             regularly  paid and  that  all deductions  from  crew's wages  in
             respect  of  tax  and/or  social  security  liability  are  being
             properly accounted  for and  that  the master  has  no claim  for
             disbursements other than  those incurred  by him in  the ordinary
             course of trading on the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement  which apply to  the Rig and  the Owner, and  in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis; 

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person for the purpose of  work being done upon
             her in  an amount exceeding or likely  to exceed Two Million Five
             Hundred  Thousand United  States Dollars  (US$2,500,000)  (or the
             equivalent in any other currency) unless such person  shall first
             have given to the  Trustee and  in terms reasonably  satisfactory
             to  it a written undertaking not to  exercise any lien on the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established  by the  Ship Mortgage  Act  and any  other pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid  and enforceable first  and preferred lien upon  the
             Rig  and promptly  to furnish  to the  Trustee from  time to time
             such proof as the Trustee may  request for its satisfaction  with
             respect to  the Owner's compliance  with the  provisions of  this
             sub-clause;

       (p)   place, and  use  due diligence  to retain,  a properly  certified
             copy of this Mortgage on board the Rig with  her papers and cause
             such certified copy of  this Mortgage to be exhibited  to any and
             all persons having  business with the  Rig which might  give rise
             to any  lien thereon other than a lien  for crew's wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and  in the  master's  cabin of  the Rig  a  framed printed
             notice in plain type in  English of such size that  the paragraph
             of  reading matter  shall cover a  space not  less than  6 inches
             wide and 9 inches high reading as follows:

                                       "NOTICE OF MORTGAGE

             This Rig is covered  by a First Preferred Mortgage to CHRISTIANIA
             BANK OG  KREDITKASSE, NEW YORK  BRANCH, as  Security Trustee  for
             the  Banks defined in  the said Mortgage  under authority  of the
             United States Ship Mortgage Act, 1920,  as amended, recodified as
             46 U.S.C.  31301  et seq.  Under the terms of  the said Mortgage
             neither  the Owner nor any  charterer nor the  master of this Rig
             nor  any  other  person has  any  right,  power  or  authority to
             create, incur  or permit  to be  imposed upon this  Rig any  lien
             whatsoever  other  than for  crew's  wages,  general average  and
             salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)  any Environmental  Claim which could  reasonably be expected
                  to result in damages in  excess of US$200,000 being or  made
                  against  the Owner, or otherwise in connection with the Rig;
                  or

             (ii)    any  Environmental  Incident   occurring,  and  keep  the
                     Trustee advised, in writing on such regular basis and  in
                     such detail  as the Trustee shall require, of the Owner's
                     response  to such  Environmental  Claim or  Environmental
                     Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by  the  Credit Agreement)  without  the written  consent  of the
             Trustee having first been obtained, and  any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to be a  waiver of this  provision with respect to  any
             subsequent proposed sale, mortgage or  transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the  lien it creates.   The Owner shall  not charter
             the  Rig to, or permit the Rig  to serve under any contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or "specially  designated national"
             of a "designated  foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury Department,  31 C.F.R. Parts 500 and  515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity"  in  the Libyan
             Sanctions Regulations of the  United States Treasury  Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity  of the Government of  Iraq" or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be  codified at  31 C.F.R. Part  575, as amended,  all within the
             meaning   of    said   Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters  or enter any Cuban port for  any purpose or engage in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the  Iranian   Transactions
             Regulations, 31  C.F.R. Part 560,  as amended, the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or violation  would  (i) expose  the Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to law, shall  not abandon  the Rig in  a foreign port,
             shall  not engage in  any unlawful  trade or  violate any  law or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or capture,  and shall not  do, or suffer or  permit to  be done,
             anything which  can or may injuriously affect the registration or
             enrollment of the  Rig under  the laws of  the United States  and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at  any time and as  often as may be  necessary to take  any
       such  action as  it may in  the reasonable  exercise of  its discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created by  this Mortgage  and the  other Credit Documents  (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the Owner does not comply  with the provisions of Clause 6  or
             any of them the Administrative Agent  shall be entitled (but  not
             bound)  to effect  or  to replace  and  renew  and thereafter  to
             maintain the Insurances  in such manner  as in its  discretion it
             may  think fit and  to require that  all policies,  contracts and
             other  records relating  to the Insurances  (including details of
             any correspondence  concerning outstanding  claims) be  forthwith
             delivered  to  such  brokers  as  the  Administrative  Agent  may
             nominate and  to collect,  recover, compromise  and  give a  good
             discharge for all claims  then outstanding or thereafter  arising
             under  the  Insurances  or  any  of  them  and  to  take over  or
             institute  (if necessary using  the name of  the Owner)  all such
             proceedings  in connection therewith  as the Administrative Agent
             in  its absolute  discretion  may think  fit  and  to permit  the
             brokers through  whom the collection  or recovery is effected  to
             charge the usual brokerage therefor; and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but not bound) to arrange for the  carrying out of such
             repairs to and/or  surveys of  the Rig as  it deems expedient  or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or  any of them  the Trustee shall  be entitled (but  not
             bound)   to  pay  and  discharge  all  such  debts,  damages  and
             liabilities  and  all  such  tolls,  dues,  taxes,   assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS

9.01   Upon  the happening of any  of the  Events of Default  specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to the effect  that an Event of Default
       has  occurred (and whether prior to  or after the Required Banks having
       served  on the Owner any such notice as is  referred to in Section 9 of
       the Credit  Agreement) the security constituted  by this Mortgage shall
       become  immediately enforceable and the  Trustee shall  be entitled, as
       and when it may see  fit, to put into force and exercise  all or any of
       the powers possessed by it as mortgagee of the  Rig or otherwise and in
       particular:

       (a)   to  exercise  all the  rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to  take possession of the Rig whether actually or constructively
             and/or  otherwise to take control of the Rig wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal process  and without  liability of the  Trustee for
             any  losses or  damages incurred  thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith  delivered to  or to  the order  of the  Administrative
             Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure   that   the  Administrative   Agent   collect,  recover,
             compromise  and give  good discharge  for any  and all  moneys or
             claims  for moneys  then outstanding or  thereafter arising under
             the  Insurances or any Requisition Compensation and to permit any
             brokers  through  whom  collection  or recovery  is  effected  to
             charge the usual brokerage therefor;

       (e)   to take over  or institute  (if necessary using  the name of  the
             Owner) or,  to the extent lawful, procure that the Administrative
             Agent  take over or institute all  such proceedings in connection
             with the Rig, the Insurances, or  any Requisition Compensation as
             the  Trustee  in  its  absolute  discretion  thinks  fit  and  to
             discharge,  compound, release  or compromise  claims  against the
             Owner in respect of the Rig which have given or may  give rise to
             any charge or  lien on the Rig or which are or may be enforceable
             by proceedings against the Rig;

       (f)   to  sell  the Rig  or any  share  therein with  or  without prior
             notice to the  Owner free from any  claim of or  by the Owner  of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some  or all of the purchase price be deferred) as the Trustee in
             its absolute discretion may determine with power  to postpone any
             such sale, without  being answerable  for any loss  occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to  purchase the  Rig at any  such public auction  and to set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for  the purposes aforesaid the Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting  the Rig, and  the insurance, management, maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in all respects as if the  Trustee were the owner of the Rig  and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses as  may  be  incurred  by  the Trustee  in  or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental to  the  exercise  by  it  of any  of  the  powers
             aforesaid.

9.02   The Trustee shall not be obliged  to make any enquiry as to the  nature
       or sufficiency of any payment  received by it under this Mortgage or to
       make any  claim, take  any action  or enforce  any rights  and benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates and  advisers  shall be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with  the exercise  or  purported exercise  of  any rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall not by reason of the taking possession of  the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or be liable  for any loss upon realization or  for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon any  sale of  the Rig  or  any share  therein by  the Trustee  the
       purchaser  shall not be bound  to see  or enquire whether  the power of
       sale of the Trustee has arisen in the manner  provided in this Mortgage
       and the sale shall be deemed to be within the power of  the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge the purchaser  who shall not be concerned  with the manner of
       application of  the  proceeds of  sale  or  be in  any  way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All  moneys  received  by  the  Trustee  (or  any  other  Secured
             Creditor, as the case  may be) in respect  of sale of the Rig  or
             any  part thereof; in respect  of recovery  under the Insurances;
             or in respect  of Requisition Compensation, shall  be applied  in
             the following manner:

             (i)     first, to the payment of all amounts owing the Trustee of
                     the type described in  clauses (ii) and (iii) of  Recital
                     D;

             (ii)    second, to  the extent  moneys  remain after  the applic-
                     ation  application  pursuant to the preceding clause (i),
                     an amount  equal to  the outstanding Obligations shall be
                     paid  to  the  Secured  Creditors  as provided  in Clause
                     10.01(c), with each Secured Creditor receiving an  amount
                     equal  to  such  Obligations  held   by  it   or,  if the
                     proceeds  are  insufficient  to  pay  in  full  all  such
                     Obligations,  its  Pro Rata Share (as  defined below)  of
                     the  amount remaining to be distributed; and

             (iii)   third,  to the extent moneys remain after the application
                     pursuant  to  the preceding  clauses  (i)  and (ii),  and
                     following the termination  of this Mortgage  pursuant  to
                     Clause  3.01, any surplus then  remaining  shall  be paid
                     to  the  Owner,  subject,  however, to the rights  of the
                     holder  of  any then existing  Lien of which the  Trustee
                     has actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount  of such Obligations owing to  or held by such
             Secured  Creditor  and  the denominator  of  which  is  the  then
             outstanding  amount  of all  such Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee shall  be entitled to  request each  Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed to  it  and shall  be  entitled to  reply upon  the  amounts
             stated therein in making such distribution.

       (c)   All payments required to be  made to Secured Creditors  hereunder
             shall  be  made to  the  Administrative  Agent under  the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i) the Administrative Agent under the  Credit Agreement and (ii)
             the   Secured   Creditors   for   a   determination  (which   the
             Administrative  Agent   and  each  Secured  Creditor,   by  their
             acceptance of  the benefits of this  Mortgage shall  be obligated
             to  provide  upon request  of  the  Trustee)  of the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge  (including by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in  furnishing  information pursuant  to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be entitled to  assume that no obligations other  than principal,
             interest  and regularly  accruing fees  are owing  to any Secured
             Creditor.

11.    FURTHER ASSURANCES

11.01  The  Owner shall execute and do all such assurances, acts and things as
       the Trustee in its absolute discretion may require for:

       (a)   perfecting or protecting the security created  (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting  any of the  rights of the  Trustee, and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring  that the security constituted  by this Mortgage and the
             covenants  and obligations of the Owner under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner, by  way of security and  in order more  fully to secure  the
       performance  of  the   Obligations,  hereby  irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in its  name all documents which the  Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage shall have  become immediately  enforceable pursuant  to
             Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of  such power as is referred to  in Clause 12.01(a) by or
       on  behalf of the  Trustee shall  not put any  person dealing  with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor  shall such  person be in  any way  affected by  notice
       that this Mortgage has not become enforceable  and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on  the release  of the  Rig  from the  security created  by this
             Mortgage,

       and the  Secured Creditors and each  such agent or attorney  may retain
       and pay all  sums in respect  of the same  out of money  received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by  such  Secured  Creditors   or  such  agent  or  attorney  shall  be
       recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred  by or asserted against them, or any of them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury  (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement  reached;  or (d)  any  violation  of laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable law  or regulation, and whether pursuant  to a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or  for  any other  reason,  any  payment  under  or in
       connection  with this Mortgage is  made or  fails to be  satisfied in a
       currency (the  "payment currency")  other  than the  currency in  which
       such payment is  due under  or in  connection with  this Mortgage  (the
       "contractual  currency"), then to  the extent that  the amount  of such
       payment  actually  received by  the  Trustee, when  converted  into the
       contractual  currency at  the  rate of  exchange,  falls  short of  the
       amount due under  or in connection with this Mortgage,  the Owner, as a
       separate and independent obligation, shall indemnify  and hold harmless
       the Trustee against the amount  of such shortfall.  For the purposes of
       this Clause 13.03,  "rate of  exchange"  means the  rate  at which  the
       Trustee is  able  on  the date  of  such  payment (or,  if  it  is  not
       practicable for the Trustee to  purchase the contractual currency  with
       the  payment currency  on the  date  of such  payment, at  the rate  of
       exchange as  soon afterwards as  is practicable  for the Trustee  to do
       so) to purchase the  contractual currency with the payment currency and
       shall take into account  any premium and other  costs of exchange  with
       respect thereto.

14.    EXPENSES

14.01  The  Owner shall pay to any Secured  Creditor on demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the  negotiation,  preparation   and  execution  of   the  Credit
             Agreement and the Credit Documents (or any of them); and/or

       (b)   the preserving  or enforcing  of, or  attempting  to preserve  or
             enforce,  any of its  rights under the  Credit Agreement  and the
             Credit Documents (or any of them).

14.02  The  Owner shall  pay to  the Trustee  and the Administrative  Agent on
       demand  all costs, fees  and expenses (including,  but not  limited to,
       legal  fees and  expenses) and  Taxes thereon  incurred by  any Secured
       Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the  Credit Agreement and  the Credit Documents  (or any
             of  them) requested  by the  Owner, necessary  or advisable under
             applicable law or  relating to  the syndication of  the Facility,
             or initiated during the  occurrence and continuation of  an Event
             of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the Credit Agreement and the Credit Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement  and  the  Credit
       Documents (or  any of  them)  may be  subject or  give  rise and  shall
       indemnify the Trustee  on demand against  any and all  liabilities with
       respect to or resulting from  any delay or omission on the  part of the
       Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to  the Trustee hereunder shall be in  writing and shall be
       made to the following address:


                   Christiania Bank og Kreditkasse, New York Branch
                   11 West 42nd Street
                   7th Floor
                   New York, New York  10036
                   Telefax:  (212) 827-4888
                   Attention:  Loan Administration


       All  other notices  shall be  made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors  and permitted assigns  and references  in this  Mortgage to
       any of them shall be construed accordingly.

16.02  The Owner  may not assign  or transfer  all or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.04 of  the Credit Agreement, each  Bank has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations  under the Credit Agreement  on the terms therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this  Mortgage is  Three Hundred Million  U.S. Dollars (US$300,000,000)
       of  principal  plus  interest,  fees, commissions  and  performance  of
       mortgage covenants.   The interest  of the  Owner in  the Rig is  100%.
       The interest of the Trustee  in the Rig is 100%.   The date of maturity
       is  November 13,  2001, and  the discharge  amount is  the same  as the
       total amount  plus such other sums as shall be  payable by the Owner to
       the Banks under the Credit Agreement.

18.    MISCELLANEOUS

18.01  If at any  time any one or more  of the provisions in this  Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law  or regulation,  the validity,  legality and  enforceability of the
       remaining provisions of this Mortgage shall not  be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time  and from time to time, may delegate  by power
       of attorney or in any other manner to any  person or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such delegation  may be made upon such terms  and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in any  way liable or responsible  to the Owner for any  loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for  in this Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The  Owner agrees that the Trustee shall have the liberty but shall not
       be  obliged to  take any  proceedings in the  courts of  any country to
       protect or  enforce the  security constituted  by this Mortgage  and/or
       the Credit  Agreement and  the  Security Documents  or  to enforce  any
       provisions  of  this  Mortgage  and/or  the  Credit  Agreement and  the
       Security Documents or  to enforce the  Obligations and for  the purpose
       of  any proceedings for  such enforcement the  Owner hereby  submits to
       the  jurisdiction of  the courts  of any country  of the  choice of the
       Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place  the Rig shall be  found lying and for the  purpose of any action
       which the  Trustee may bring before the courts  of such jurisdiction or
       other judicial  authority and for the  purpose of any action  which the
       Trustee may bring against the Rig, any writ, notice,  judgment or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner agrees  that  should the  Trustee bring  a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in connection  with this Mortgage,  no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby consents generally in  respect of any legal action  or
       proceedings arising  out of or in connection with  this Mortgage to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made  or given in such
       action or proceedings.


IN WITNESS  whereof the Owner has caused this Mortgage to be executed the  day
and year first before written.

READING & BATES DRILLING CO.

By_____________________________________
    Name:  T.W. Nagle
    Title:  Vice President and Treasurer


                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle to  me known  who being  by me duly  sworn did  depose and  say that  he
resides at  13307  Tosca Lane,  Houston, TX;  that he  is  Vice President  and
Treasurer for READING &  BATES DRILLING CO., the corporation described  in and
which  executed the foregoing instrument; and  that he signed his name thereto
by order of the Board of Directors of READING & BATES DRILLING CO.



                                 _______________________
                                 Notary Public


                                                                Exhibit 10.127


                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996

                         READING & BATES DRILLING CO.

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee


                                ROGER W. MOWELL

==============================================================================

                                     INDEX

CLAUSE                  SUBJECT MATTER                                   PAGE

      1     DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
      2     REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
      3     MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 
      4     PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
      5     PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . . . 9 
      6     INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
      7     RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
      8     PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
      9     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS . . . . . . . .  19 
      10    APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
      11    FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
      12    POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
      13    INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
      14    EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
      15    COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
      16    ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
      17    TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
      18    MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
      19    JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

      ACKNOWLEDGEMENT OF MORTGAGE
      EXHIBIT 1 FORM OF CREDIT AGREEMENT

==============================================================================

THIS FIRST PREFERRED  MORTGAGE (this "Mortgage")  is made on  the 13th day  of
November, 1996

BY

(1)    READING  &  BATES DRILLING  CO.,  an  Oklahoma  corporation having  its
       principal offices at 901  Threadneedle, Suite 200, Houston, Texas 77079
       (the "Owner"), 

IN FAVOR OF

(2)    CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK BRANCH, a  Norwegian banking
       corporation  having its office  at 11 West  42nd Street,  New York, New
       York, as  security trustee for  the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is  the sole owner of the  whole of the jack-up  drilling rig
       ROGER  W. MOWELL  documented under  the  laws and  flag  of the  United
       States  of   America  with  Official   Number 645360  of  4,121   gross
       registered tons and 3,079 net registered tons (the "Rig").

(B)    By  a Credit  Agreement dated  as of  November  13, 1996  (as modified,
       amended  or supplemented  from time  to time,  the  "Credit Agreement")
       among  (i)  Reading  &  Bates   Corporation,  a  Delaware  corporation,
       ("Holdings"),  (ii)  the  Owner,  as borrower,  (iii)  the  banks party
       thereto (the "Banks"),  (iv) Credit Lyonnais New York Branch and Banque
       Indosuez, as documentation agents (the  "Documentation Agents") and (v)
       the Trustee,  as administrative  agent, arranger  and security  trustee
       (in  such  capacity, the  "Administrative  Agent") (the  form  of which
       Credit Agreement  together  with  Exhibit  B thereto  but  without  the
       remaining attachments is attached hereto  as Exhibit 1), it  was agreed
       among other  things that the  Banks would  make available to  the Owner
       upon the  terms and conditions  therein described a reducing  revolving
       credit facility (the  "Facility") in an  aggregate amount  at any  time
       outstanding   of    Three   Hundred   Million   United States   Dollars
       (US$300,000,000), providing  for the making of  Loans and  the issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The  obligations  of  the  Owner  with  respect  to  the  Facility  are
       evidenced by  the  Credit Agreement  and  the other  Credit  Documents,
       including  the promissory  notes of the  Owner payable to  the order of
       the respective Banks  (each a "Note" and collectively the "Notes") (the
       form of which is attached as Exhibit B to the Credit Agreement). 

(D)    This Mortgage  is made for the benefit of the Trustee to secure (i) the
       full and prompt payment when due  of (x) the principal of and  interest
       on  the Notes issued,  and Loans made, under  the Credit Agreement, and
       all reimbursement  obligations and Unpaid Drawings  with respect to the
       Letters of Credit issued under  the Credit Agreement and (y)  all other
       obligations    and   indebtedness    (including   without   limitation,
       indemnities, Fees and  interest thereon) of  the Owner  to the  Secured
       Creditors (as hereinafter  defined), whether now existing  or hereafter
       incurred  under,  arising out  of  or  in  connection  with the  Credit
       Agreement   and  the   other   Credit   Documents  including,   without
       limitation, this Mortgage  and the  due performance  and compliance  by
       the Owner  with all of  the terms, conditions  and agreements contained
       in  the  Credit Agreement  and  the other  Credit  Documents including,
       without limitation,  this Mortgage; (ii)  any and all  sums advanced by
       the  Trustee  in  order  to  preserve the  Collateral  (as  hereinafter
       defined) or preserve  its security interest in the Collateral; (iii) in
       the event  of any proceeding  for the collection or  enforcement of any
       indebtedness, obligations, or  liabilities of the Owner referred  to in
       clause (i) above, after an Event of Default shall have occurred and  be
       continuing,  the  reasonable  expenses of  the  Trustee  of  re-taking,
       holding,  preparing for sale or  lease, selling  or otherwise disposing
       of or realizing  on the Collateral, or  of any exercise by  the Trustee
       of its  rights hereunder, together  with reasonable attorneys' fees  of
       counsel to the  Trustee and court costs;  and (iv) all amounts  paid by
       any  Indemnitee  as  to  which   such  Indemnitee  has  the   right  to
       reimbursement under Clause 13 of  this Mortgage (all such  obligations,
       liabilities, sums and  expenses referred to in clauses (i) through (iv)
       above being  collectively referred  to as  the "Obligations").   It  is
       acknowledged   and  agreed   that   the  "Obligations"   shall  include
       extensions of  credit of the types described above, whether outstanding
       on the date  of this Mortgage or  extended from time to time  after the
       date of this Mortgage.  

(E)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration  of the Banks agreeing,  at the request  of the Owner, to
       make the Facility available  to the Owner under the terms of the Credit
       Agreement and  as a condition thereto  and for other good  and valuable
       consideration  provided by  the  Banks (the  sufficiency  of which  the
       Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage  unless the context otherwise requires,  the following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank"  means any  lender listed from  time to time  on Annex  I to the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the  same meaning for such term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the Credit  Agreement, dated  as of  November
       13,  1996,  among Holdings,  the  Owner, the  Banks,  the Documentation
       Agents and  the Administrative Agent  first referred to  in Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents"  shall have the meaning  for such term as  set forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no Letters  of Credit remain outstanding  and the Loans and  the Unpaid
       Drawings, together with interest,  fees and  all other obligations  are
       paid in full;

       "Default  Rate"  shall  mean   the  rate  of  interest  calculated   in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal reports  prepared  by  Holdings  or any  of  its  Subsidiaries
       solely in  the ordinary course  of such  Person's business  and not  in
       response  to  any third  party  action  or  request  of  any  kind)  or
       proceedings relating in any way to any  Environmental Law or any permit
       issued,  or  any  approval  given,  under any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by    any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release of  Environmentally
       Sensitive  Material   from  the  Rig,  (ii)   any  incident   in  which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than  the Rig and  which involves  collision between  the Rig  and such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which Environmentally  Sensitive Material is released from  a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing  and the  like, into  or  upon any  land  or water  or air,  or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule of common  law now or hereafter in effect and in  each case as
       amended, and  any judicial  or  administrative interpretation  thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials, including,  without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act, as amended, 33 U.S.C.   1251 et seq.; the
       Toxic Substances Control Act, 15 U.S.C.   7401 et seq.; the Clean  Air
       Act,  42 U.S.C.  7401 et seq.;  the Safe Drinking Water Act, 42 U.S.C.
       3808 et seq.;  the Oil  Pollution Act of  1990, 33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees"  shall have the same  meaning for such term  as set forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable, urea  formaldehyde  foam  insulation,  transformers  or  other
       equipment  that   contained,  electric   fluid  containing   levels  of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous  waste,"  "restricted hazardous  waste,"  "toxic substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any  applicable Environmental  Law; and  (c) any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect of the  Rig or otherwise by the Owner  (whether
       in the sole name  of the Owner or in the  joint names of the Owner  and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest  Period" shall  have the same  meaning for  such term  as set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of  Credit" shall have  the same meaning  for such term as  set
       forth in Section 2.01(a) of the Credit Agreement; 

       "Loan(s)" shall  have the same  meaning for such  term as set forth  in
       the Credit Agreement;

       "Major Casualty" means  any casualty to the Rig  in respect whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means each promissory  note of the Owner referred to  in Recital
       (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (D) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C. 
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       jack-up  drilling  rig  D.  R.   STEWART  owned  by  Reading   &  Bates
       Exploration Co. ("R&B Exploration") documented under the laws and  flag
       of  the  United States  with  Official  Number  626904  of 6,494  gross
       registered tons  and  5,834  net registered  tons;  (ii)  the  offshore
       drilling rig W.  D. KENT owned by R&B  Exploration documented under the
       laws and  flag of  the United  States  with Official  Number 583169  of
       5,383 gross  registered tons and  4,185 net registered  tons; (iii) the
       offshore drilling rig  CHARLEY GRAVES owned by Reading and Bates Borneo
       Drilling Co., Ltd. documented under  the laws and flag of the  Republic
       of  Panama  with Patente  Number 6618-76-CH  of 5,829  gross registered
       tons and 1,748 net  registered tons; (iv) the jack-up  drilling rig RON
       TAPPMEYER owned  by Reading & Bates  (A) Pty Ltd.  documented under the
       laws and flag  of Australia with Official Number 855213 of 11,455 gross
       registered  tons  and   3,436  net  registered  tons;  (v)   the  semi-
       submersible drilling rig  J. W. McLEAN  owned by  the Owner  documented
       under the  laws and flag of the Republic  of Panama with Patente Number
       25384-PEXT  of 15,453  gross registered tons  and 4,636  net registered
       tons; (vi) the semi-submersible  drilling rig RIG 41 owned by the Owner
       documented under  the laws and flag of the  Republic of Panama with the
       Patente  Number  to be  assigned on  the  date hereof  of  10,078 gross
       registered  tons  and 3,024  net  registered  tons;  (vii) the  jack-up
       drilling rig HARVEY  H. WARD owned  by HRB  Rig Corporation  documented
       under the laws and  flag of the United States of  America with Official
       Number 642693 of 4,121 gross  registered tons and 3,079  net registered
       tons;  (viii)  the jack-up  drilling  rig  F.  G.  McCLINTOCK owned  by
       Reading &  Bates Offshore, Limited  documented under the  laws and flag
       of the United  States of America  with Official Number 562059  of 5,525
       gross registered tons  and 1,657 net  registered tons;  (ix) the  semi-
       submersible  drilling rig  JACK  BATES owned  by  the Owner  documented
       under the laws and flag of  the United States of America with  Official
       Number   906283  of  19,928  gross  registered   tons  and  14,948  net
       registered tons; (x) the jack-up drilling rig J.  T. ANGEL owned by the
       Owner documented  under  the laws  and  flag of  the United  States  of
       America with Official  Number 651645 of 4,186 gross registered tons and
       3,090 net registered  tons; (xi) the jack-up drilling rig RANDOLPH YOST
       owned  by the Owner  documented under the laws  and flag  of the United
       States  of  America  with   Official  Number  601699  of  4,701   gross
       registered tons  and  4,701  net  registered tons;  (xii)  the  jack-up
       drilling rig  GEORGE H.  GALLOWAY owned  by Reading  & Bates  Offshore,
       Limited  documented under  the laws and  flag of  the United  States of
       America with Official  Number 651646 of 3,729 gross registered tons and
       2,496 net  registered tons; and (xiii)  the jack-up drilling  rig C. E.
       THORNTON to  be owned by HRB Rig Corporation  documented under the laws
       and flag  of the United States  of America with Official  Number 673210
       of 6,096 gross registered tons and 6,096 net registered tons;

       "Permitted  Liens" means:  (1) liens  incident to  expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being contested  in good faith, provided
       such liens are  not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a bond or other  security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable; (3)  liens for  taxes, assessments,  governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested in  good faith,  provided  such liens  are not  in excess  of
       U.S.$5,000,000.00, and  if  in excess  thereof, then  the Owner  shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security  satisfactory to the Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of Clause 6  hereof (except that  no lien shall be  deemed
       not covered by insurance to the  extent insurance in force would  cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant to  any judgment  or to an  order of attachment,  distraint or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the  payment  or  discharge of  which  provisions  satisfactory to  the
       Administrative Agent have been made as evidenced by the  Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to the lien of  this Mortgage or (ii) constitute a maritime
       lien which would in  any event be entitled as such to priority over the
       Mortgage under  the United  States shipping  laws  or other  applicable
       laws relating to  the Rig's trading  pattern.  Nothing herein  shall be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection and  indemnity  risks" means  the  usual risks  covered  by
       protection   and   indemnity  associations   of   international  repute
       including the  proportion not  recoverable in  case of collision  under
       the ordinary running-down clause (unless such is recoverable  under the
       relevant hull and machinery coverage);

       "Requisition Compensation"  means  all  moneys  or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig"  means the vessel  described in Recital  (A) hereto  and includes
       any share  or  interest  therein and  her  engines,  machinery,  boats,
       tackle,  outfit,  spare  gear,   fuel,  consumable  or  other   stores,
       belongings and  appurtenances whether  on board  or ashore  and whether
       now  owned or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties);

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit Issuer and the Administrative Agent under  and as defined in the
       Credit Agreement;

       "Security Documents" shall have the  same meaning for such term  as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes" shall  have the same meaning for such  term as set forth in the
       Credit Agreement;

       "Total  Commitment" shall  have the same  meaning for such  term as set
       forth in the Credit Agreement;

       "Total  Loss" means (a) the actual,  constructive, arranged, agreed, or
       compromised Total Loss  of the Rig;  (b) the requisition  for title  or
       other compulsory  acquisition or  forfeiture of the  Rig otherwise than
       by requisition for hire;  (c) the  capture, seizure, arrest,  detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting to  act  on behalf  of  any  government unless  the  Rig  be
       released from such capture, seizure, arrest or  detention within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing" shall  have the  same meaning  for such  term  as set
       forth in the Credit Agreement;

       "War Risks" includes the risk of mines and all  risks excluded from the
       standard form  of English  marine policy  by  the free  of capture  and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified,  all  references to  Clauses  are to  clauses  of this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references    to   persons    include   bodies    corporate   and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to  any enactment  include  re-enactments, amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the Owner is the sole  legal and beneficial owner of the whole of
             the Rig  and  neither the  whole  nor any  share  in the  Rig  is
             subject to any Security  Interest (except for Permitted Liens and
             the lien of this Mortgage);

       (b)   the Owner  has  not sold  or transferred,  or agreed  to sell  or
             transfer, title to the Rig or any share therein; 

       (c)   the  Owner is  a corporation duly  organized and validly existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the Owner  has full power  and authority (i) to  register the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the  Owner  has complied  with all  statutory and  other material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig; 

       (f)   the  Owner  has  taken all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner enforceable against  the Owner in accordance with its terms
             (except  to   the  extent   limited  by  applicable   bankruptcy,
             reorganization, insolvency, moratorium  or other laws  of general
             application   relating  to   or  affecting   the  enforcement  of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's National  Vessel Documentation  Center in  Falling
             Waters, West Virginia will create a  legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect (i) any  law or regulation of any  governmental or
             official authority  or  body, or  (ii)  any of  the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is  a party or which  is binding upon the Owner  or any
             of its assets;

       (h)   all consents, licenses, approvals and  authorizations required in
             connection   with  the  entry  into,  performance,  validity  and
             enforceability   of   this   Mortgage    and   the   transactions
             contemplated  hereby and thereby  have been  obtained and  are in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this  Mortgage, it is not  necessary for  the legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that it  or any document  relating thereto be registered,  filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction  or that any stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws and all  Environmental Approvals  relating to  the Rig,  its
             operation and management  and the business  of the Owner  (as now
             conducted and as  reasonably anticipated to be  conducted in  the
             future) have been obtained or complied with;

       (k)   no Environmental Claim has  been made  or threatened against  the
             Owner, the Approved Manager or  otherwise in connection with  the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably  be expected to result,  in an  Environmental Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall survive the execution of this Mortgage and shall  be deemed to be
       repeated at the time of the making  of each Loan and at the time of the
       issuance  of each  Letter  of Credit,  with  respect to  the facts  and
       circumstances existing  at each  such time,  as if  made  at each  such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto  the Trustee, its successors and assigns,  the whole of the Rig TO
       HAVE  AND TO HOLD the same unto the Trustee, its successors and assigns
       forever upon  the terms  herein set  forth for  the enforcement  of the
       Obligations.

       Provided only and the condition  of these presents is such that  if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been  performed in  full as  and  when the  same shall  become due  and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and conditions contained in  the Subsidiary Guaranty and  this Mortgage
       expressed or implied to be performed, observed  or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or fraud  and according to  the true intent and  meaning thereof,
       then  these presents and  the rights  hereunder shall  cease, determine
       and be void  otherwise to be and remain  in full force and  effect and,
       in such  event, the indenture Trustee  agrees to execute and  record at
       the  expense  of  the  Owner,  all such  documents  as  the  Owner  may
       reasonably require to discharge this Mortgage.  
       Notwithstanding  anything to  the contrary  herein  it is  not intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of  this Mortgage  and that  if any  provision or  part  thereof herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig  and none of the Secured  Creditors shall
       be under  any obligation of any  kind whatsoever in respect  thereof or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors   for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges  or other  moneys as are  stated in  this Mortgage  to be
             payable by  the Owner  to or  recoverable from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to  indemnify any of  the Secured Creditors  at the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees,  charges or other moneys referred to
             in Clause 4.01(a)  from the date on  which demand is made  by any
             Secured  Creditor as the case may be, for payment by the Owner of
             the  relevant expense,  claim, liability, loss,  cost, duty, fee,
             charge or other money  incurred by any Secured Creditor for which
             the  Owner is  responsible (both  before and  after any  relevant
             judgment) at the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing to any Secured Creditor under  this Mortgage and the  other
             Credit Documents to  which the Owner is  or is to  be a party  at
             the times and in the manner specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be  prejudiced or affected by  any of the other  Security
             Documents;

       (c)   the Trustee shall not  have to wait for the Administrative Agent,
             the Banks or the  Letter of Credit Issuer  to enforce any of  the
             other  Security Documents  before enforcing  the security created
             by this Mortgage;

       (d)   no delay or  omission on the  part of  the Trustee in  exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power  or remedy or be  construed as a waiver  thereof nor
             shall any single or partial exercise of any  such right, power or
             remedy  preclude any further exercise thereof  or the exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given in  writing and then only for the  purpose and
             upon the terms for which it is given.

5.02   Any  settlement or discharge  under this  Mortgage between  the Trustee
       and  the Owner shall be conditional upon  no security or payment to the
       Secured  Creditors or any of  them by  the Credit Parties  or any other
       person being avoided or  set-aside or ordered to be refunded or reduced
       by  virtue  of  any provision  or  enactment  relating  to  bankruptcy,
       insolvency,  administration or liquidation for  the time being in force
       and, if such condition is not satisfied, the Trustee shall  be entitled
       to  recover from the Owner on demand the  value of such security or the
       amount of any  such payment as if such settlement  or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall   not  be  affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair, affect  or discharge such rights  and security, in  whole or
       in part, including without  limitation, and whether or not known  to or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:

       (a)   any  time or waiver  granted to the  Credit Parties  or any other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit  Parties  or any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit  Documents (other  than this Mortgage)  or any other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or  frustration   of   any
             obligations  of any  of the  Credit Parties  or any  other person
             under the  Credit Agreement,  any of  the other  Credit Documents
             (other than this Mortgage) or any other document or security.

5.04   Until the Obligations have been satisfied  in full to the  satisfaction
       of  the Trustee,  the Owner  shall not  by virtue  of any  payment made
       hereunder  on  account  of  the  Obligations   or  by  virtue  of   any
       enforcement  by  the  Trustee of  its  rights  under,  or  the security
       constituted  by,  this  Mortgage  or  by  virtue  of  any  relationship
       between,  or  transaction involving,  the Owner  and  Holdings (whether
       such relationship or transaction shall constitute the Owner  a creditor
       of Holdings, a  guarantor of  the obligations  of Holdings  or a  party
       subrogated  to  the  rights of  others  against  Holdings  or otherwise
       howsoever and whether or  not such relationship or transaction shall be
       related  to,  or  in  connection  with,  the  subject  matter  of  this
       Mortgage):

       (a)   exercise  any rights of  subrogation in  relation to  any rights,
             security or moneys held  or received or receivable by the Secured
             Creditors or any other person; or

       (b)   be entitled  to  exercise  any  right of  contribution  from  any
             co-surety liable  in respect of such moneys and liabilities under
             any other guaranty, security or agreement; or

       (c)   exercise  any right  of set-off or  counterclaim against Holdings
             or any such co-surety; or

       (d)   receive, claim or have the benefit  of any payment, distribution,
             security or indemnity from Holdings or any such co-surety; or

       (e)   unless so  directed by the Trustee (when the  Owner will prove in
             accordance  with  such  directions),  claim  as   a  creditor  of
             Holdings or any such co-surety in competition with the Trustee.

       The  Owner shall  hold in  trust for the  Trustee and  forthwith pay or
       transfer (as  appropriate) to the Trustee  any such  payment (including
       an amount equal to  any such set-off), distribution or benefit  of such
       security, indemnity or claim in fact received by it.

5.05   The Owner  unconditionally  and irrevocably  agrees  that if  any  sums
       hereby secured are  not recoverable on the basis of a guaranty (whether
       by reason of legal limitation, illegality,  disability or incapacity on
       or of Holdings  or the Owner or  any other person or  by reason of  any
       other  fact  or   circumstance,  and  whether   or  not  known   to  or
       discoverable by the Owner,  Holdings, the Trustee or any other person),
       then the Owner will, as  a separate and independent stipulation  and as
       a primary obligor, pay  to the Trustee on  demand an amount or  amounts
       equal  to the amount or amounts which  the Owner would have been liable
       to pay but for such  irrecoverability and will on demand indemnify  the
       Trustee against  any loss  or  liability suffered  or  incurred by  the
       Secured Creditors or any of them as a result of such irrecoverability.

6.     INSURANCE

6.01   The Owner  covenants with  the Trustee  throughout the Credit  Facility
       Period that:

       (a)   The Owner  shall, at its  own expense,  when and  so long as  any
             Obligations  remain  outstanding, insure  the  Rig  and keep  her
             insured,  or cause the Rig to be  insured, in lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and indemnity  risks,  pollution  liability, and  war
             risks), in such form  (including without limitation, the  form of
             the loss payable  clause and the designation  of named  assureds)
             and  with  such first  class  insurance companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect   to  hull   and  machinery/increased   value  insurance,
             including war risk, the Owner shall  insure the Rig and keep  her
             insured, or cause the Rig  to be insured, for an amount  which is
             at least  the full  commercial value  of the Rig,  and when  such
             amount is aggregated with  the amount of such  insurance coverage
             on the Other  Rigs, such aggregate amount shall  be at least 110%
             of the Total Commitment.   The Rig shall  in no event be  insured
             for  an amount less than the agreed valuation as set forth in the
             applicable marine and war  risk policies.   Such insurance  shall
             cover  marine and war  risk perils, on  hull and  machinery, with
             deductibles not in excess of US$500,000  (such deductibles not to
             apply  in  the case  of  Total Loss  of  the Rig),  and  shall be
             maintained  in  the broadest  forms  available  in the  American,
             British  and  Scandinavian insurance  markets  or  in such  other
             major   international  markets   reasonably  acceptable   to  the
             Administrative Agent.  The Owner shall  maintain, or cause to  be
             maintained,  protection and  indemnity  or equivalent  insurance,
             including  war  risk   protection  and  indemnity   coverage  and
             coverage against pollution  liability, in an amount not less than
             US$100,000,000   (or,  with   respect   to  pollution   liability
             coverage,  such greater amount  as may be  required from  time to
             time by  the  Oil  Pollution  Act 1990,  or  other  Environmental
             Laws),  as and  when applicable  to the  Rig and  its operations,
             through   underwriters   or   associations  acceptable   to   the
             Administrative Agent.  In addition, the  Owner shall, at its  own
             expense,  furnish  to  the  Administrative  Agent  a  mortgagee's
             single interest policy  providing coverage which, when aggregated
             with   the  mortgagee's  interest   insurance  furnished  to  the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an amount equal to at  least 110% of the aggregate amount  of the
             Total  Commitment  (or  in  lieu  of  such  mortgagee's  interest
             insurance  Owner shall  cause  the  hull and  machinery/increased
             value  insurance  to be  endorsed  to afford  breach  of warranty
             coverage  for the  benefit of  the Administrative  Agent).   Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies  for the benefit  of the  Administrative Agent  shall be
             maintained  in  the  broadest  form available  in  the  American,
             British  and Scandinavian  markets or  other major  international
             markets   acceptable   to   the  Administrative   Agent   through
             underwriters  acceptable to  the Administrative  Agent.   The Rig
             shall not operate  in or proceed into  any area then  excluded by
             trading  warranties  under  its  marine  or   war  risk  policies
             (including   protection  and  indemnity)  without  obtaining  any
             necessary   additional  coverage,   satisfactory   in  form   and
             substance,  and  evidence of  which  shall be  furnished,  to the
             Administrative Agent.

       (b)   The  policy  or  policies   of  insurance  shall  be   issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and  insuring   covenants   satisfactory  to   the
             Administrative Agent, and shall  be kept in full force and effect
             by  the Owner so long as any Obligations remain outstanding.  All
             such policies,  binders  and  other interim  insurance  contracts
             shall be executed and issued in the name of  the Owner and shall,
             to the extent  required herein, provide  that loss be  payable to
             the  Administrative Agent for distribution  by it  to itself, the
             Banks  and the  Owner as  their interests  may appear,  and shall
             provide for at least  ten days' prior notice  to be given to  the
             Administrative  Agent by  the underwriters or  association in the
             event of  cancellation or  the failure  of the Owner  to pay  any
             premium or call which  would suspend coverage under the policy or
             the payment of a  claim thereunder.  The Administrative Agent and
             the Trustee shall  be named as  co-assureds on all  such policies
             and   insurance   contracts,  but   without   liability   of  the
             Administrative  Agent  or  the  Trustee for  premiums  or  calls.
             Certified copies of all  such policies, binders and other interim
             insurance contracts shall  be deposited  with the  Administrative
             Agent.  Originals shall also be provided upon the request of  the
             Administrative   Agent.     The  Owner   shall  furnish   to  the
             Administrative Agent annually  a detailed report signed by a firm
             of marine  insurance brokers satisfactory  to the  Administrative
             Agent as to  the insurance maintained in  respect of the Rig,  as
             to their opinion as to the adequacy thereof and as  to compliance
             with the provisions of this Clause 6.01.

             Unless otherwise required by  the Administrative Agent by  notice
             to the underwriters, although the following  insurance is payable
             to the Administrative Agent,  (i) any loss under any insurance on
             the  Rig with respect  to protection and  indemnity risks  may be
             paid directly to the Owner  to reimburse it for any  loss, damage
             or expense  incurred by it  and covered by  such insurance  or to
             the person to  whom any liability  covered by such  insurance has
             been incurred  and (ii) in  the case  of any  loss (other than  a
             loss covered  by (i) above or by  the next following paragraph of
             this Clause 6.01(b)) under  any insurance with respect to the Rig
             involving  any  damage  to  the  Rig, the  underwriters  may  pay
             directly for the repair,  salvage or  other charges involved  or,
             if the Owner shall  have first fully repaired the damage  or paid
             all  of  the  salvage or  other  charges,  may pay  the  Owner as
             reimbursement  therefor; provided, however,  that if  such damage
             involves a before deductible loss in excess of US$1,000,000,  the
             underwriters shall not make such payment  without first obtaining
             the  written consent  thereto of the  Administrative Agent (which
             consent shall  not be unreasonably  withheld).  Any loss  covered
             by this paragraph which is paid  to the Administrative Agent  but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the  Administrative Agent to, or as directed by, the Owner and
             all other payments to  the Administrative Agent of losses covered
             by this  paragraph shall be  applied by the Administrative  Agent
             in accordance with Clause 10.01.

             In  the  event of  an  actual  or constructive  Total  Loss  or a
             compromised constructive Total Loss or requisition  of title, all
             insurance payments therefor shall  be paid to the  Administrative
             Agent.    The  Owner  shall  not   declare  or  agree  with   the
             underwriters  that  the Rig  is  a  constructive or  compromised,
             agreed  or  arranged constructive  Total Loss  without  the prior
             written consent of the Administrative Agent.

       (c)   In the event of an actual or constructive Total  Loss of the Rig,
             the  Administrative  Agent  shall  retain out  of  the  insurance
             payments received  on account of  such loss any sum  or sums that
             shall be  or become  owing  to the  Secured  Creditors under  the
             Security Documents,  whether or  not  the same  be  then due  and
             payable, together with accrued  interest and the cost, if any, of
             collecting  the insurance,  and pay  the balance  as  provided in
             Clause 10. 

       (d)   The Owner  shall comply with and satisfy all of the provisions of
             any applicable law, regulation, proclamation or  order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will maintain,  or cause  to be maintained,  all certificates
             or other  evidence of financial responsibility as may be required
             by  any such law, regulation, proclamation  or order with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The Owner shall renew all insurances as they expire  and so as to
             insure that there is  no gap in coverage, keep the Administrative
             Agent advised of the  progress of such renewals, and procure that
             the   insurers  shall   promptly  confirm   in  writing   to  the
             Administrative Agent as and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or  other sums  payable  in  respect of  all  such
             insurances and produce all relevant receipts when so  required by
             the Administrative Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner  shall not  employ the  Rig or  suffer  the Rig  to be
             employed  otherwise than  in  conformity with  the  terms of  the
             instruments   of  insurance   aforesaid   relative  to   the  Rig
             (including any  warranties, express or implied,  therein) without
             first obtaining  the consent of the  insurers to  such employment
             and complying  with  such requirements  as  to extra  premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The Owner  covenants  with  the  Trustee  that  throughout  the  Credit
       Facility Period the Owner will:

       (a)   maintain its existence  as a  corporation in  good standing  duly
             organized under the laws of the State of Oklahoma;

       (b)   keep the Rig  documented in its  name as  a United States  vessel
             and to do or  allow to be done nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig  in a good and efficient  state of repair consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  Self-Elevating  Drilling Unit)  at  the  American Bureau  of
             Shipping free  of recommendations  and qualifications  and change
             of class,  save those notified to and  approved in writing by the
             Trustee  and so  as  to comply  with  all  laws, regulations  and
             requirements  (statutory   or  otherwise)   from  time  to   time
             applicable to vessels documented under the  laws and flag of  the
             United   States  and   applicable  to  vessels   trading  to  any
             jurisdiction to which the Rig may,  subject to the provisions  of
             this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost  parts or equipment be  effected in such manner  (both as
             regards workmanship  and quality of materials) as to not diminish
             the value of the Rig  and not to remove any material part  of, or
             item of equipment installed  on, the Rig unless the  part or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which is in the  same condition as or  better condition than  the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner  and  subject  to  the  security constituted  by  this
             Mortgage;

       (f)   submit  the Rig  to such  periodical or  other surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee  and the Administrative Agent copies of all
             survey reports issued in respect thereof;

       (g)   permit  the  representatives  of  the   Administrative  Agent  or
             independent surveyors representing the  Trustee to board the  Rig
             at  all  reasonable times  and  upon  reasonable notice  for  the
             purpose  of  inspecting  her  condition  or for  the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and to afford all proper facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged on  or in  respect of  the Rig  and  all other  outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig  pursuant to  legal  process,  or in  the  event of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require; 

       (i)   not employ  the  Rig or  allow her  employment  in any  trade  or
             business  which  is  unlawful  under  the laws  of  any  relevant
             jurisdiction  or in carrying  illicit or  prohibited goods  or in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities in any part of the world (whether  war be declared or
             not) not employ the Rig or suffer her employment in  carrying any
             contraband goods  or  to enter  or  trade to  any zone  which  is
             declared  a war  zone  by any  government  or  by the  war  risks
             insurers of the Rig unless  there shall have been effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Administrative Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from  time  to time  require regarding  the Rig,  her employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages and, upon the  request of the Trustee in writing, copies
             of  all charters  and  other  contracts  for  her  employment  or
             otherwise howsoever concerning her;

       (k)   notify  both the  Trustee and the  Administrative Agent forthwith
             by telex or telecopy thereafter confirmed by letter of:

             (i)     any  casualty  to  the Rig which is or is likely to be  a
                     Major  Casualty, and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss, and

             (iii)   any requirement or recommendation made by any insurer  or
                     classification  society  or  by  any competent  authority
                     which is not immediately complied with, and

             (iv)    any  arrest of  the  Rig  or  the exercise  or  purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire, and

             (v)     any  intended  dry  docking  of the Rig, as to  which the
                     Owner  shall give the Trustee ten (10) days prior notice,
                     provided, that in the event of any emergency  dry docking
                     of  the  Rig,  the  Owner  shall  immediately  notify the
                     Trustee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for  normal periods of inactivity  between contracts
                     for the Rig during which  periods the Rig remains manned)
                     and obtain the prior written consent of the Trustee;

       (l)   keep  proper books of account  in respect  of the Rig  and as and
             when the Trustee  or the Administrative Agent  may so  reasonably
             require make  such books  available for  inspection on behalf  of
             the Trustee and furnish satisfactory evidence that the  wages and
             allotments  and the insurance  of the master  and crew  are being
             regularly  paid and  that  all deductions  from  crew's wages  in
             respect  of  tax  and/or  social  security  liability  are  being
             properly accounted  for and  that  the master  has  no claim  for
             disbursements other than  those incurred  by him in  the ordinary
             course of trading on the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement  which apply to  the Rig and  the Owner, and  in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis; 

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person for the purpose of  work being done upon
             her in  an amount exceeding or likely  to exceed Two Million Five
             Hundred  Thousand United  States Dollars  (US$2,500,000)  (or the
             equivalent in any other currency) unless such person  shall first
             have given to the  Trustee and  in terms reasonably  satisfactory
             to  it a written undertaking not to  exercise any lien on the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established  by the  Ship Mortgage  Act  and any  other pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal, valid  and enforceable first  and preferred lien upon  the
             Rig  and promptly  to furnish  to the  Trustee from  time to time
             such proof as the Trustee may  request for its satisfaction  with
             respect to  the Owner's compliance  with the  provisions of  this
             sub-clause;

       (p)   place, and  use  due diligence  to retain,  a properly  certified
             copy of this Mortgage on board the Rig with  her papers and cause
             such certified copy of  this Mortgage to be exhibited  to any and
             all persons having  business with the  Rig which might  give rise
             to any  lien thereon other than a lien  for crew's wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room  and  in the  master's  cabin of  the Rig  a  framed printed
             notice in plain type in  English of such size that  the paragraph
             of  reading matter  shall cover a  space not  less than  6 inches
             wide and 9 inches high reading as follows:

                                       "NOTICE OF MORTGAGE

             This Rig is covered  by a First Preferred Mortgage to CHRISTIANIA
             BANK OG  KREDITKASSE, NEW YORK  BRANCH, as  Security Trustee  for
             the  Banks defined in  the said Mortgage  under authority  of the
             United States Ship Mortgage Act, 1920,  as amended, recodified as
             46 U.S.C.  31301  et seq.  Under the terms of  the said Mortgage
             neither  the Owner nor any  charterer nor the  master of this Rig
             nor  any  other  person has  any  right,  power  or  authority to
             create, incur  or permit  to be  imposed upon this  Rig any  lien
             whatsoever  other  than for  crew's  wages,  general average  and
             salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)   any Environmental  Claim which could  reasonably be expected
                   to result in damages in  excess of US$200,000 being or  made
                   against  the Owner, or otherwise in connection with the Rig;
                   or

             (ii)  any  Environmental   Incident    occurring,  and  keep  the
                   Trustee advised,  in  writing on such regular basis and  in
                   such  detail  as the Trustee  shall require, of the Owner's
                   response  to  such  Environmental   Claim or  Environmental
                   Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by  the  Credit Agreement)  without  the written  consent  of the
             Trustee having first been obtained, and  any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to be a  waiver of this  provision with respect to  any
             subsequent proposed sale, mortgage or  transfer.  Any such  sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and the  lien it creates.   The Owner shall  not charter
             the  Rig to, or permit the Rig  to serve under any contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or "specially  designated national"
             of a "designated  foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury Department,  31 C.F.R. Parts 500 and  515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity"  in  the Libyan
             Sanctions Regulations of the  United States Treasury  Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity  of the Government of  Iraq" or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be  codified at  31 C.F.R. Part  575, as amended,  all within the
             meaning   of    said   Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters  or enter any Cuban port for  any purpose or engage in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the  Iranian   Transactions
             Regulations, 31  C.F.R. Part 560,  as amended, the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or violation  would  (i) expose  the Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to law, shall  not abandon  the Rig in  a foreign port,
             shall  not engage in  any unlawful  trade or  violate any  law or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or capture,  and shall not  do, or suffer or  permit to  be done,
             anything which  can or may injuriously affect the registration or
             enrollment of the  Rig under  the laws of  the United States  and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at  any time and as  often as may be  necessary to take  any
       such  action as  it may in  the reasonable  exercise of  its discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created by  this Mortgage  and the  other Credit Documents  (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the Owner does not comply  with the provisions of Clause 6  or
             any of them the Administrative Agent  shall be entitled (but  not
             bound)  to effect  or  to replace  and  renew  and thereafter  to
             maintain the Insurances  in such manner  as in its  discretion it
             may  think fit and  to require that  all policies,  contracts and
             other  records relating  to the Insurances  (including details of
             any correspondence  concerning outstanding  claims) be  forthwith
             delivered  to  such  brokers  as  the  Administrative  Agent  may
             nominate and  to collect,  recover, compromise  and  give a  good
             discharge for all claims  then outstanding or thereafter  arising
             under  the  Insurances  or  any  of  them  and  to  take over  or
             institute  (if necessary using  the name of  the Owner)  all such
             proceedings  in connection therewith  as the Administrative Agent
             in  its absolute  discretion  may think  fit  and  to permit  the
             brokers through  whom the collection  or recovery is effected  to
             charge the usual brokerage therefor; and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but not bound) to arrange for the  carrying out of such
             repairs to and/or  surveys of  the Rig as  it deems expedient  or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or  any of them  the Trustee shall  be entitled (but  not
             bound)   to  pay  and  discharge  all  such  debts,  damages  and
             liabilities  and  all  such  tolls,  dues,  taxes,   assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND INDENTURE TRUSTEE'S POWERS

9.01   Upon  the happening of any  of the  Events of Default  specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to the effect  that an Event of Default
       has  occurred (and whether prior to  or after the Required Banks having
       served  on the Owner any such notice as is  referred to in Section 9 of
       the Credit  Agreement) the security constituted  by this Mortgage shall
       become  immediately enforceable and the  Trustee shall  be entitled, as
       and when it may see  fit, to put into force and exercise  all or any of
       the powers possessed by it as mortgagee of the  Rig or otherwise and in
       particular:

       (a)   to  exercise  all the  rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to  take possession of the Rig whether actually or constructively
             and/or  otherwise to take control of the Rig wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal process  and without  liability of the  Trustee for
             any  losses or  damages incurred  thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith  delivered to  or to  the order  of the  Administrative
             Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure   that   the  Administrative   Agent   collect,  recover,
             compromise  and give  good discharge  for any  and all  moneys or
             claims  for moneys  then outstanding or  thereafter arising under
             the  Insurances or any Requisition Compensation and to permit any
             brokers  through  whom  collection  or recovery  is  effected  to
             charge the usual brokerage therefor;

       (e)   to take over  or institute  (if necessary using  the name of  the
             Owner) or,  to the extent lawful, procure that the Administrative
             Agent  take over or institute all  such proceedings in connection
             with the Rig, the Insurances, or  any Requisition Compensation as
             the  Trustee  in  its  absolute  discretion  thinks  fit  and  to
             discharge,  compound, release  or compromise  claims  against the
             Owner in respect of the Rig which have given or may  give rise to
             any charge or  lien on the Rig or which are or may be enforceable
             by proceedings against the Rig;

       (f)   to  sell  the Rig  or any  share  therein with  or  without prior
             notice to the  Owner free from any  claim of or  by the Owner  of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some  or all of the purchase price be deferred) as the Trustee in
             its absolute discretion may determine with power  to postpone any
             such sale, without  being answerable  for any loss  occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to  purchase the  Rig at any  such public auction  and to set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for  the purposes aforesaid the Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting  the Rig, and  the insurance, management, maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in all respects as if the  Trustee were the owner of the Rig  and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses as  may  be  incurred  by  the Trustee  in  or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental to  the  exercise  by  it  of any  of  the  powers
             aforesaid.

9.02   The Trustee shall not be obliged  to make any enquiry as to the  nature
       or sufficiency of any payment  received by it under this Mortgage or to
       make any  claim, take  any action  or enforce  any rights  and benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates and  advisers  shall be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with  the exercise  or  purported exercise  of  any rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee shall not by reason of the taking possession of  the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or be liable  for any loss upon realization or  for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon any  sale of  the Rig  or  any share  therein by  the Trustee  the
       purchaser  shall not be bound  to see  or enquire whether  the power of
       sale of the Trustee has arisen in the manner  provided in this Mortgage
       and the sale shall be deemed to be within the power of  the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge the purchaser  who shall not be concerned  with the manner of
       application of  the  proceeds of  sale  or  be in  any  way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All  moneys  received  by  the  Trustee  (or  any  other  Secured
             Creditor, as the case  may be) in respect  of sale of the Rig  or
             any  part thereof; in respect  of recovery  under the Insurances;
             or in respect  of Requisition Compensation, shall  be applied  in
             the following manner:

             (i)     first, to the payment of all amounts owing the Trustee of
                     the type described in  clauses (ii) and (iii) of  Recital
                     D;

             (ii)    second,  to  the   extent   moneys   remain   after   the
                     application  pursuant to the  preceding  clause  (i),  an
                     amount equal to the outstanding Obligations shall be paid
                     to the Secured Creditors as provided  in Clause 10.01(c),
                     with each Secured Creditor receiving an amount  equal  to
                     such   Obligations  held by  it or,  if the proceeds  are
                     insufficient to pay in full all such Obligations, its Pro
                     Rata Share  (as  defined below)  of the  amount remaining
                     to be distributed; and

             (iii)  third,   to  the   extent   moneys   remain   after    the
                    application pursuant to the preceding clauses (i) and (ii),
                    and following the termination  of this  Mortgage  pursuant 
                    to Clause 3.01, any surplus then remaining  shall  be paid
                    to  the  Owner,  subject,  however,  to the rights  of the
                    holder of any then existing Lien of which the  Trustee has
                    actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount  of such Obligations owing to  or held by such
             Secured  Creditor  and  the denominator  of  which  is  the  then
             outstanding  amount  of all  such Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee shall  be entitled to  request each  Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed to  it  and shall  be  entitled to  reply upon  the  amounts
             stated therein in making such distribution.

       (c)   All payments required to be  made to Secured Creditors  hereunder
             shall  be  made to  the  Administrative  Agent under  the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i) the Administrative Agent under the  Credit Agreement and (ii)
             the   Secured   Creditors   for   a   determination  (which   the
             Administrative  Agent   and  each  Secured  Creditor,   by  their
             acceptance of  the benefits of this  Mortgage shall  be obligated
             to  provide  upon request  of  the  Trustee)  of the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge  (including by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in  furnishing  information pursuant  to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be entitled to  assume that no obligations other  than principal,
             interest  and regularly  accruing fees  are owing  to any Secured
             Creditor.

11.    FURTHER ASSURANCES

11.01  The  Owner shall execute and do all such assurances, acts and things as
       the Trustee in its absolute discretion may require for:

       (a)   perfecting or protecting the security created  (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting  any of the  rights of the  Trustee, and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring  that the security constituted  by this Mortgage and the
             covenants  and obligations of the Owner under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner, by  way of security and  in order more  fully to secure  the
       performance  of  the   Obligations,  hereby  irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in its  name all documents which the  Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage shall have  become immediately  enforceable pursuant  to
             Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of  such power as is referred to  in Clause 12.01(a) by or
       on  behalf of the  Trustee shall  not put any  person dealing  with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor  shall such  person be in  any way  affected by  notice
       that this Mortgage has not become enforceable  and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on  the release  of the  Rig  from the  security created  by this
             Mortgage,

       and the  Secured Creditors and each  such agent or attorney  may retain
       and pay all  sums in respect  of the same  out of money  received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by  such  Secured  Creditors   or  such  agent  or  attorney  shall  be
       recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred  by or asserted against them, or any of them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury  (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement  reached;  or (d)  any  violation  of laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable law  or regulation, and whether pursuant  to a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or  for  any other  reason,  any  payment  under  or in
       connection  with this Mortgage is  made or  fails to be  satisfied in a
       currency (the  "payment currency")  other  than the  currency in  which
       such payment is  due under  or in  connection with  this Mortgage  (the
       "contractual  currency"), then to  the extent that  the amount  of such
       payment  actually  received by  the  Trustee, when  converted  into the
       contractual  currency at  the  rate of  exchange,  falls  short of  the
       amount due under  or in connection with this Mortgage,  the Owner, as a
       separate and independent obligation, shall indemnify  and hold harmless
       the Trustee against the amount  of such shortfall.  For the purposes of
       this Clause 13.03,  "rate of  exchange"  means the  rate  at which  the
       Trustee is  able  on  the date  of  such  payment (or,  if  it  is  not
       practicable for the Trustee to  purchase the contractual currency  with
       the  payment currency  on the  date  of such  payment, at  the rate  of
       exchange as  soon afterwards as  is practicable  for the Trustee  to do
       so) to purchase the  contractual currency with the payment currency and
       shall take into account  any premium and other  costs of exchange  with
       respect thereto.

14.    EXPENSES

14.01  The Owner shall pay any  Secured Creditor on demand all costs, fees and
       expenses, including, but  not limited to,  legal fees and  expenses and
       valuation fees and  Taxes thereon incurred  by any Secured  Creditor or
       for which any Secured Creditor may become liable in connection with:

       (a)   the  negotiation,   preparation  and  execution  of   the  Credit
             Agreement and the Credit Documents (or any of them); and/or

       (b)   the preserving  or enforcing  of,  or attempting  to preserve  or
             enforce,  any of its  rights under the  Credit Agreement  and the
             Credit Documents (or any of them).

14.02  The Owner  shall pay  to the  Trustee and the  Administrative Agent  on
       demand  all costs, fees  and expenses (including,  but not  limited to,
       legal  fees and  expenses) and  Taxes thereon  incurred by  any Secured
       Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the  Credit Agreement and  the Credit Documents  (or any
             of them)  requested by  the Owner,  necessary or advisable  under
             applicable  law or  relating to the  syndication of the Facility,
             or initiated  during the occurrence and  continuation of an Event
             of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the Credit Agreement and the Credit Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement  and  the  Credit
       Documents (or  any of  them)  may be  subject or  give  rise and  shall
       indemnify the Trustee  on demand against  any and all  liabilities with
       respect to or resulting from  any delay or omission on the  part of the
       Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices to  the Trustee hereunder shall be in  writing and shall be
       made to the following address:


                   Christiania Bank og Kreditkasse, New York Branch
                   11 West 42nd Street
                   7th Floor
                   New York, New York  10036
                   Telefax:  (212) 827-4888
                   Attention:  Loan Administration


       All  other notices  shall be  made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors  and permitted assigns  and references  in this  Mortgage to
       any of them shall be construed accordingly.

16.02  The Owner  may not assign  or transfer  all or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to  Section 12.04 of  the Credit Agreement, each  Bank has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations  under the Credit Agreement  on the terms therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this  Mortgage is  Three Hundred Million  U.S. Dollars (US$300,000,000)
       of  principal  plus  interest,  fees, commissions  and  performance  of
       mortgage covenants.   The interest  of the  Owner in  the Rig is  100%.
       The interest of the Trustee  in the Rig is 100%.   The date of maturity
       is  November 13,  2001, and  the discharge  amount is  the same  as the
       total amount  plus such other sums as shall be  payable by the Owner to
       the Banks under the Credit Agreement.

18.    MISCELLANEOUS

18.01  If at any  time any one or more  of the provisions in this  Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law  or regulation,  the validity,  legality and  enforceability of the
       remaining provisions of this Mortgage shall not  be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time  and from time to time, may delegate  by power
       of attorney or in any other manner to any  person or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such delegation  may be made upon such terms  and subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not be in any  way liable or responsible  to the Owner for any  loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for  in this Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The  Owner agrees that the Trustee shall have the liberty but shall not
       be  obliged to  take any  proceedings in the  courts of  any country to
       protect or  enforce the  security constituted  by this Mortgage  and/or
       the Credit  Agreement and  the  Security Documents  or  to enforce  any
       provisions  of  this  Mortgage  and/or  the  Credit  Agreement and  the
       Security Documents or  to enforce the  Obligations and for  the purpose
       of  any proceedings for  such enforcement the  Owner hereby  submits to
       the  jurisdiction of  the courts  of any country  of the  choice of the
       Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place  the Rig shall be  found lying and for the  purpose of any action
       which the  Trustee may bring before the courts  of such jurisdiction or
       other judicial  authority and for the  purpose of any action  which the
       Trustee may bring against the Rig, any writ, notice,  judgment or other
       legal process or documents may (without  prejudice to any other  method
       of  service under applicable law) be served  upon the master of the Rig
       (or  upon anyone acting as the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner agrees  that  should the  Trustee bring  a  legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in connection  with this Mortgage,  no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby consents generally in  respect of any legal action  or
       proceedings arising  out of or in connection with  this Mortgage to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made  or given in such
       action or proceedings.


IN WITNESS  whereof the Owner has caused this Mortgage to be executed the  day
and year first before written.

READING & BATES DRILLING CO.


By_____________________________________
    Name:  T.W. Nagle
    Title:  Vice President and Treasurer


                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK           )
                            )  S.S.
COUNTY OF NEW YORK          )



On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle  to me  known who  being by  me duly  sworn did  depose and say  that he
resides  at 13307  Tosca Lane,  Houston,  TX; that  he is  Vice  President and
Treasurer  for READING & BATES DRILLING  CO., the corporation described in and
which executed the  foregoing instrument; and that he  signed his name thereto
by order of the Board of Directors of READING & BATES DRILLING CO.



                                _____________________
                                 Notary Public


                                                               Exhibit 10.128


                           FIRST PREFERRED MORTGAGE

                            Dated November 13, 1996

                              HRB RIG CORPORATION

                                - in favor of -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
                              as Security Trustee


                                HARVEY H. WARD
=============================================================================

                                     INDEX

CLAUSE          SUBJECTMATTERPAGE

       1    DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 2 
       2    REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . 7 
       3    MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
       4    PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . . . 9 
       5    PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
       6    INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
       7    RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  13 
       8    PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  17 
       9    ENFORCEABILITY AND TRUSTEE'S POWERS . . . . . . . . . . . . .  18 
       10   APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
       11   FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  21 
       12   POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  21 
       13   INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  22 
       14   EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  23 
       15   COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
       16   ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  24 
       17   TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  24 
       18   MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  24 
       19   JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  25 

       ACKNOWLEDGEMENT OF MORTGAGE
       EXHIBIT 1 FORM OF CREDIT AGREEMENT
       EXHIBIT 2 FORM OF SUBSIDIARY GUARANTY

==============================================================================

THIS FIRST  PREFERRED MORTGAGE (this  "Mortgage") is made  on the 13th  day of
November, 1996

BY

(1)    HRB  RIG CORPORATION,  an  Oklahoma  corporation having  its  principal
       offices  at 901  Threadneedle,  Suite 200,  Houston,  Texas 77079  (the
       "Owner"),

IN FAVOR OF

(2)    CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK BRANCH,  a Norwegian banking
       corporation  having its  office at 11  West 42nd Street,  New York, New
       York,  as security trustee  for the Banks (as  hereinafter defined) and
       as mortgagee (the "Trustee")

WHEREAS

(A)    The Owner is  the sole owner of  the whole of the jack-up  drilling rig
       HARVEY H. WARD documented under the laws and flag of the United  States
       of America with Official Number 642693  of 4,121 gross registered  tons
       and 3,079 net registered tons (the "Rig").

(B)    By  a Credit  Agreement dated  as of  November 13,  1996  (as modified,
       amended  or supplemented  from time  to  time, the  "Credit Agreement")
       among  (i)  Reading   &  Bates  Corporation,  a   Delaware  corporation
       ("Holdings"),  (ii)   Reading  &  Bates   Drilling  Co.,  an   Oklahoma
       corporation  (the  "Borrower"),  (iii) the  banks  party  thereto  (the
       "Banks"), (iv) Credit Lyonnais New York Branch and Banque  Indosuez, as
       documentation agents (the "Documentation Agents")  and (v) the Trustee,
       as  administrative  agent,  arranger  and  security  trustee  (in  such
       capacity,  the  "Administrative  Agent")  (the  form  of  which  Credit
       Agreement together with  Exhibit B  thereto but  without the  remaining
       attachments is  attached  hereto as  Exhibit 1),  it was  agreed  among
       other things  that the Banks would make available  to the Borrower upon
       the terms and conditions therein described  a reducing revolving credit
       facility   (the  "Facility")  in  an   aggregate  amount  at  any  time
       outstanding   of    Three   Hundred   Million   United States   Dollars
       (US$300,000,000), providing  for the making of  Loans and  the issuance
       of, and participation in, Letters of Credit as contemplated therein.

(C)    The  obligations  of  the Borrower  with  respect to  the  Facility are
       evidenced by  the  Credit Agreement  and  the other  Credit  Documents,
       including  the promissory notes of the Borrower payable to the order of
       the respective  Banks (each  a "Note"  and, collectively, the  "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed and delivered  a Subsidiary Guaranty (as modified,  amended or
       supplemented  from time  to time, the  "Subsidiary Guaranty"), the form
       of which Subsidiary Guaranty  is attached hereto as Exhibit 2, in favor
       of  the  Administrative  Agent  guaranteeing  the  performance  by  the
       Borrower  of its obligations  under the Credit Agreement  and the other
       Credit Documents.

(E)    This  Mortgage is made  for the  benefit of  the Trustee to  secure the
       guaranty by  the Owner of (i) the  full and prompt payment  when due of
       (x) the principal of  and interest on the Notes issued, and Loans made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings with respect to the Letters of Credit issued under  the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of the  Borrower  to the  Secured  Creditors (as  hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit Agreement and the other  Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance and  compliance  by the  Borrower with  all of  the  terms,
       conditions  and agreements  contained in  the Credit  Agreement and the
       other Credit  Documents including, without  limitation, this  Mortgage;
       (ii) any and all  sums advanced by the Trustee in order to preserve the
       Collateral (as hereinafter  defined) or preserve its  security interest
       in the  Collateral;  (iii) in  the  event  of any  proceeding  for  the
       collection  or   enforcement  of  any  indebtedness,   obligations,  or
       liabilities of the Borrower  referred to in clause (i) above,  after an
       Event of Default shall have occurred and be continuing,  the reasonable
       expenses  of the Trustee  of re-taking, holding, preparing  for sale or
       lease,  selling  or  otherwise   disposing  of  or  realizing  on   the
       Collateral, or of any exercise by the Trustee of  its rights hereunder,
       together with reasonable attorneys' fees of counsel to the  Trustee and
       court costs; and  (iv) all amounts paid  by any Indemnitee as  to which
       such Indemnitee has the  right to reimbursement under Clause 13 of this
       Mortgage  (all  such   obligations,  liabilities,  sums  and   expenses
       referred  to in  clauses  (i)  through  (iv) above  being  collectively
       referred to as the "Obligations").  It is acknowledged and  agreed that
       the  "Obligations" shall  include  extensions of  credit  of the  types
       described  above, whether outstanding  on the date of  this Mortgage or
       extended from time to time after the date of this Mortgage. 

(F)    This  First  Preferred  Mortgage  is  entered  into  by  the  Owner  in
       consideration  of the Banks agreeing  to make the Facility available to
       the  Borrower  and as  a  condition  thereto  and  for other  good  and
       valuable  consideration provided by the Banks (the sufficiency of which
       the Owner hereby acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED

1.     DEFINITIONS AND INTERPRETATION

1.01   In this Mortgage  unless the context otherwise requires,  the following
       expressions shall have the following meanings:

       "Administrative Agent"  shall have  the same  meaning for such  term as
       set forth in the Credit Agreement;

       "Bank" means any  lender listed  from time to  time on Annex  I to  the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the same meaning for such  term as set forth in
       the Credit Agreement;

       "Credit  Agreement" means  the Credit Agreement,  dated as  of November
       13, 1996,  among Holdings, the  Borrower, the Banks, the  Documentation
       Agents,  and the Administrative Agent  first referred to in Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents" shall  have the meaning for  such term as set  forth
       in the Credit Agreement;

       "Credit  Facility Period" shall mean  the period commencing on the date
       hereof  and ending on  the date the Total  Commitments have terminated,
       no Letters  of Credit remain outstanding  and the Loans and  the Unpaid
       Drawings  together with  interest, fees  and all  other obligations are
       paid in full;

       "Default   Rate"  shall  mean  the  rate   of  interest  calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or authorization  required  under applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal  reports  prepared by  Holdings  or  any of  its  Subsidiaries
       solely  in the  ordinary course of  such Person's  business and  not in
       response  to  any  third  party action  or  request  of  any  kind)  or
       proceedings relating in any way to any Environmental  Law or any permit
       issued,  or  any  approval given,  under  any  such  Environmental  Law 
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant to  any  applicable Environmental  Law, and  (b) any  and  all
       Claims   by    any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release of  Environmentally
       Sensitive  Material  from   the  Rig,   (ii)  any  incident   in  which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and  which involves  collision between  the Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which Environmentally Sensitive Material  is released from a  vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault  or  otherwise liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing and  the like,  into  or upon  any  land or  water or  air,  or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule  of common law now or hereafter in effect  and in each case as
       amended, and  any  judicial or  administrative interpretation  thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including, without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act,  as amended, 33 U.S.C.  1251 et seq.; the
       Toxic Substances  Control Act, 15 U.S.C.  7401  et seq.; the Clean Air
       Act, 42 U.S.C.  7401 et  seq.; the Safe Drinking Water Act, 42  U.S.C.
        3808  et seq.;  the Oil Pollution  Act of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall have the  same meaning for such  term as set forth in  the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials,  asbestos in  any form  that is or  could become
       friable,  urea  formaldehyde  foam  insulation,  transformers or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or  substances defined as  or included in the  definition of "hazardous
       substances,"   "hazardous  waste,"  "hazardous  materials,"  "extremely
       hazardous  waste," "restricted  hazardous  waste," "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar  import, under any  applicable Environmental  Law; and  (c) any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression  includes  all  entries  of  the  Rig in  a  protection  and
       indemnity  association)  which  are  from time  to  time  taken out  or
       entered into  in respect of the Rig or  otherwise by the Owner (whether
       in the sole name of the  Owner or in the joint  names of the Owner  and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest  Period" shall have  the same  meaning for  such term  as set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of Credit" shall  have the  same meaning for  such term as  set
       forth in Section 2.01(a) of the Credit Agreement;

       "Loan(s)" shall have the  same meaning  for such term  as set forth  in
       the Credit Agreement;

       "Major  Casualty" means any casualty to  the Rig in respect whereof the
       claim or  the  aggregate of  the claims  against all  insurers,  before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note"  means  each  promissory note  of  the Borrower  referred  to in
       Recital (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C. 
       2701 et seq.), as amended;

       "Other  Rigs" means,  individually  or collectively,  each  of (i)  the
       semi-submersible  drilling  rig  JACK  BATES   owned  by  the  Borrower
       documented under the laws and  flag of the United States with  Official
       Number  906283  of  19,928  gross  registered  tons  and    14,948  net
       registered tons;  (ii) the offshore  drilling rig  W. D. KENT  owned by
       Reading & Bates Exploration Co. documented  under the laws and flag  of
       the   United  States  with  Official   Number  583169  of  5,383  gross
       registered  tons  and 4,185  net  registered tons;  (iii)  the offshore
       drilling rig CHARLEY GRAVES owned by Reading and Bates  Borneo Drilling
       Co., Ltd. documented under  the laws and flag of the Republic of Panama
       with  Patente  Number 6618-76-CH  of  5,829 gross  registered  tons and
       1,748 net registered tons; (iv) the jack-up drilling rig  RON TAPPMEYER
       owned  by Reading &  Bates (A) Pty Ltd.  documented under  the laws and
       flag  of  Australia   with  Official  Number 855213  of   11,455  gross
       registered  tons  and   3,436  net  registered  tons;  (v)   the  semi-
       submersible drilling rig J. W. McLEAN owned by the  Borrower documented
       under the  laws and flag of the Republic  of Panama with Patente Number
       25384-PEXT  of 15,453  gross registered tons  and 4,636  net registered
       tons;  (vi)  the  semi-submersible drilling  rig  RIG 41  owned  by the
       Borrower  documented under the laws and  flag of the Republic of Panama
       with the  Patente Number to  be assigned on  the date hereof of  10,078
       gross registered tons and 3,024 net registered tons; (vii)  the jack-up
       drilling rig  GEORGE H.  GALLOWAY owned  by Reading  & Bates  Offshore,
       Limited documented  under the  laws and  flag of the  United States  of
       America with Official Number 651646 of 3,729 gross registered  tons and
       2,496  net  registered  tons; (viii)  the  jack-up drilling  rig  F. G.
       McCLINTOCK owned by  Reading & Bates Offshore, Limited documented under
       the laws and flag  of the United States of America with Official Number
       562059  of 5,525 gross  registered tons and 1,657  net registered tons;
       (ix) the  jack-up  drilling rig  RANDOLPH YOST  owned by  the  Borrower
       documented under  the laws  and flag  of the  United States of  America
       with  Official Number 601699  of 4,701 gross registered  tons and 4,701
       net registered tons; (x) the jack-up drilling rig  J. T. ANGEL owned by
       the Borrower documented  under the laws and  flag of the  United States
       of  America with Official Number  651645 of 4,186 gross registered tons
       and 3,090 net registered tons;  (xi) the jack-up drilling rig ROGER  W.
       MOWELL owned by the  Borrower documented under the laws and flag of the
       United States  of America  with Official  Number 645360 of  4,121 gross
       registered tons  and  3,079  net  registered tons;  (xii)  the  jack-up
       drilling  rig D. R.  STEWART owned  by Reading &  Bates Exploration Co.
       documented  under the laws  and flag  of the  United States  of America
       with  Official Number 626904  of 6,494 gross registered  tons and 5,834
       net  registered  tons;  and  (xiii)  the  jack-up drilling  rig  C.  E.
       THORNTON to be owned by  HRB Rig Corporation documented under the  laws
       and flag  of the United  States of America with  Official Number 673210
       of 6,096 gross registered tons and 6,096 net registered tons;

       "Permitted  Liens" means:  (1)  liens incident  to expenses  of current
       operations,  other than for master's  and crew's wages, incurred in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being contested in good faith,  provided
       such liens are  not in excess  of U.S.$5,000,000.00,  and if in  excess
       thereof,  then  the  Owner  shall,  upon  the written  request  of  the
       Administrative Agent, provide  a bond or other security satisfactory to
       the Administrative Agent); (2) liens for master's and crew's  wages not
       yet  due and  payable; (3)  liens for  taxes, assessments, governmental
       charges,  fines and penalties not  at the time delinquent (unless being
       contested  in good  faith, provided  such liens  are  not in  excess of
       U.S.$5,000,000.00,  and if  in excess  thereof, then  the  Owner shall,
       upon  the written request  of the Administrative Agent,  provide a bond
       or other security satisfactory to the Administrative Agent);  (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for  claims covered  by valid  policies of insurance  meeting the
       requirements of Clause  6 hereof (except that  no lien shall  be deemed
       not covered by insurance  to the extent insurance in force  would cover
       the  amount  secured  by the  lien  but for  any  applicable deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant to  any judgment or  to an  order of attachment,  distraint or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and so long  as the execution or other enforcement  thereof
       is not unstayed for  more than  30 consecutive days;  (7) any lien  for
       the  payment  or  discharge of  which  provisions  satisfactory  to the
       Administrative Agent have been made as  evidenced by the Administrative
       Agent's  written consent to  such lien;  (8) any  lien in favor  of the
       Banks;  and provided that  Permitted Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to the lien of this Mortgage or  (ii) constitute a maritime
       lien which  would in any event be entitled as such to priority over the
       Mortgage under  the  United States  shipping laws  or other  applicable
       laws relating  to the Rig's trading  pattern.  Nothing  herein shall be
       deemed a waiver of the preferred status of this Mortgage; 

       "Protection  and  indemnity risks"  means  the usual  risks  covered by
       protection   and  indemnity   associations   of  international   repute
       including the  proportion not recoverable  in case  of collision  under
       the ordinary running-down clause  (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Requisition  Compensation"  means  all  moneys  or other  compensation
       payable during the Credit Facility Period by reason of  requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means  the vessel  described in  Recital (A) hereto  and includes
       any share  or  interest  therein and  her  engines,  machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and  appurtenances whether  on board  or ashore  and whether
       now  owned or hereafter  acquired (but  excluding therefrom  any leased
       equipment owned by third parties); 

       "Secured Creditors" shall  mean the Trustee,  the Banks, the  Letter of
       Credit Issuer and the  Administrative Agent under and as defined in the
       Credit Agreement;

       "Security Documents"  shall have the same meaning  for such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,  charge   (whether  fixed  or
       floating),  pledge, lien, hypothecation, assignment, trust arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Subsidiary Guaranty"  means  the agreement  dated as  of November  13,
       1996 made by the  Owner in favor of  the Administrative Agent as  first
       referred   to  in   Recital  (D)  hereto,   as  modified,   amended  or
       supplemented from time to time;

       "Ship Mortgage Act"  means the United  States Ship Mortgage  Act, 1920,
       as amended, recodified at 46 U.S.C.  31301, et seq.;

       "Taxes" shall have the same  meaning for such term as set  forth in the
       Credit Agreement;

       "Total Commitment"  shall have the  same meaning for  such term  as set
       forth in the Credit Agreement;

       "Total Loss"  means (a) the actual,  constructive, arranged, agreed, or
       compromised Total  Loss of the  Rig; (b)  the requisition for  title or
       other compulsory acquisition  or forfeiture of the  Rig otherwise  than
       by requisition  for hire; (c)  the capture, seizure, arrest,  detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting  to  act  on behalf  of  any  government unless  the  Rig be
       released from such  capture, seizure, arrest or detention within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing" shall  have the  same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War Risks" includes the risk  of mines and all risks excluded from the
       standard form  of  English marine  policy by  the free  of capture  and
       seizure clause.

1.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall have the same meanings when used in this Mortgage.

1.03   In this Mortgage:

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the  context   otherwise  requires,  words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

2.     REPRESENTATIONS AND WARRANTIES

2.01   The Owner hereby represents and warrants to the Trustee that:

       (a)   the Owner is the sole legal and beneficial owner  of the whole of
             the  Rig and  neither  the whole  nor  any share  in  the Rig  is
             subject to any Security Interest (except  for Permitted Liens and
             the lien of this Mortgage);

       (b)   the  Owner has  not sold  or  transferred, or  agreed to  sell or
             transfer, title to the Rig or any share therein;

       (c)   the Owner  is a  corporation duly organized  and validly existing
             and in good standing under the laws of the State of Oklahoma;

       (d)   the  Owner has full power  and authority (i)  to register the Rig
             in  its  name  under United  States  flag,  (ii)  to  execute and
             deliver this Mortgage, (iii)  to mortgage the Rig as security for
             the Obligations and  (iv) to comply  with the provisions  of, and
             perform all its obligations under, this Mortgage;

       (e)   the Owner  has  complied with  all statutory  and other  material
             requirements   relating  to   the  ownership,   registration  and
             operation of the Rig;

       (f)   the  Owner  has  taken  all necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the  legal, valid  and  binding  obligation of  the
             Owner enforceable against the  Owner in accordance with its terms
             (except  to   the  extent   limited  by  applicable   bankruptcy,
             reorganization, insolvency,  moratorium or other  laws of general
             application  relating   to  or   affecting  the  enforcement   of
             creditors'  rights as  from time  to time  in effect  and general
             equitable  principles)  and when  filed  with  the United  States
             Coast  Guard's National  Vessel Documentation  Center  in Falling
             Waters, West  Virginia will create a legal, valid and enforceable
             first preferred mortgage lien on the Rig;

       (g)   the  entry into  and performance  by the  Owner of  this Mortgage
             does not and will not during  the Credit Facility Period  violate
             in any respect (i)  any law or regulation of  any governmental or
             official  authority or  body,  or (ii)  any  of the  constitutive
             documents   of   the   Owner   including   the   Certificate   of
             Incorporation or By-laws, as  amended from time to time, or (iii)
             any  material agreement,  contract or other  undertaking to which
             the Owner is  a party or which is  binding upon the Owner  or any
             of its assets;

       (h)   all  consents, licenses, approvals and authorizations required in
             connection  with  the  entry  into,   performance,  validity  and
             enforceability   of   this   Mortgage    and   the   transactions
             contemplated  hereby and  thereby have  been obtained  and are in
             full  force and  effect  and will  be  so  maintained during  the
             Credit Facility Period;

       (i)   save  for such registrations  and filings as  are referred  to in
             this Mortgage,  it is  not necessary for  the legality, validity,
             enforceability  or admissibility  in  evidence  of this  Mortgage
             that it  or any document relating  thereto be  registered, filed,
             recorded or enrolled with  any court or authority in any relevant
             jurisdiction or that any stamp, registration or  similar taxes be
             paid on or in relation to this Mortgage;

       (j)   the  Owner  is in  compliance with  all  applicable Environmental
             Laws and  all Environmental  Approvals relating  to the Rig,  its
             operation and management  and the business  of the Owner  (as now
             conducted and as reasonably  anticipated to  be conducted in  the
             future) have been obtained or complied with;

       (k)   no  Environmental Claim  has been made  or threatened against the
             Owner, the  Approved Manager or otherwise  in connection with the
             Rig; and

       (l)   no  Environmental  Incident which  has resulted,  or  which could
             reasonably be  expected to  result, in an  Environmental Claim in
             excess of US$200,000 has occurred.

2.02   The representations and warranties  of the Owner set out in Clause 2.01
       shall survive the execution of this Mortgage and shall  be deemed to be
       repeated at the time of the making  of each Loan and at the time of the
       issuance of  each  Letter of  Credit,  with respect  to  the facts  and
       circumstances  existing at  each such  time, as  if made  at each  such
       time.

3.     MORTGAGE

3.01   In  order to secure  the Obligations, the  Owner has  granted, conveyed
       and  mortgaged and does  by these presents  grant, convey  and mortgage
       unto the Trustee,  its successors and assigns, the whole  of the Rig TO
       HAVE AND TO HOLD the same unto the Trustee,  its successors and assigns
       forever upon  the terms  herein set  forth for the  enforcement of  the
       Obligations.

       Provided  only and the condition of these  presents is such that if all
       of  the Obligations secured  by this Mortgage  have terminated  or have
       been  performed  in full  as and  when the  same  shall become  due and
       payable  in accordance with  the terms of  the Subsidiary  Guaranty and
       this Mortgage and  shall observe and  comply with the  covenants, terms
       and  conditions contained in the Subsidiary  Guaranty and this Mortgage
       expressed or  implied to be performed, observed or complied with by and
       on the part of  the Owner and its  successors and assigns, all  without
       delay or  fraud and according to  the true intent and  meaning thereof,
       then  these presents  and the rights  hereunder shall  cease, determine
       and be  void otherwise to be and  remain in full force  and effect and,
       in such event, the Trustee agrees to execute and  record at the expense
       of the  Owner, all such documents  as the Owner  may reasonably require
       to discharge this Mortgage.

       Notwithstanding  anything to  the contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that if  any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it  in relation to the  Rig and none of  the Secured Creditors shall
       be under  any obligation of any  kind whatsoever in  respect thereof or
       be under any liability whatsoever  in event of any failure by the Owner
       to perform its obligations in respect thereof.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay   and  indemnify  the  Secured  Creditors  for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or other  moneys as  are stated  in this  Mortgage to  be
             payable by  the Owner to  or recoverable  from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs,  duties, fees, charges or other moneys referred to
             in Clause 4.01(a)  from the date on  which demand is made  by any
             Secured  Creditor  for  payment by  the  Owner  of  the  relevant
             expense,  claim,  liability, loss,  cost,  duty,  fee, charge  or
             other money incurred  by a Secured  Creditor for which  the Owner
             is responsible (both before and  after any relevant judgment)  at
             the Default Rate; and 

       (c)   to  pay and perform its obligations which may be or become due or
             owing  to  a  Secured   Creditor  under  this  Mortgage  and  the
             Subsidiary  Guaranty at  the times  and in  the manner  specified
             herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Trustee  as  a continuing  security  for the  performance  of the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be prejudiced  or affected by  any of the other  Security
             Documents;

       (c)   the Trustee shall not have to  wait for the Administrative  Agent
             to enforce any  of the other Security Documents  before enforcing
             the security created by this Mortgage;

       (d)   no delay  or omission on  the part of  the Trustee  in exercising
             any right, power or  remedy under this Mortgage shall impair such
             right, power or  remedy or be construed  as a waiver thereof  nor
             shall any single or partial exercise of any such right,  power or
             remedy preclude any further  exercise thereof or the  exercise of
             any  other  right,  power or  remedy.    The  rights,  powers and
             remedies  provided  in  this  Mortgage  are  cumulative  and  not
             exclusive of any rights,  powers and remedies provided by law and
             may be exercised from  time to time and  as often as the  Trustee
             may deem expedient; and

       (e)   any waiver by the  Trustee of any terms  of this Mortgage or  any
             consent given by  the Trustee under  this Mortgage shall  only be
             effective if given in writing  and then only for the purpose  and
             upon the terms for which it is given.

5.02   Any settlement  or discharge  under this  Mortgage between  the Trustee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured Creditors  or any of  them by the Credit  Parties or  any other
       person being avoided or set-aside or ordered to be  refunded or reduced
       by  virtue  of  any  provision or  enactment  relating  to  bankruptcy,
       insolvency, administration  or liquidation for the  time being in force
       and, if such condition  is not satisfied, the Trustee shall be entitled
       to recover from the Owner  on demand the value of such  security or the
       amount  of any such payment as if  such settlement or discharge had not
       occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate 
       to  impair, affect or discharge  such rights and  security, in whole or
       in  part, including without limitation, and whether  or not known to or
       discoverable by the Secured Creditors or any other person:

       (a)   any time or  waiver granted  to the Credit  Parties or any  other
             person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit  Parties  or  any other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents  (other than  this Mortgage) or  any other
             document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity  or   frustration   of   any
             obligations  of any  of the  Credit Parties  or any  other person
             under the  Credit Agreement, any of  the other Security Documents
             (other than this Mortgage) or any other document or security.

6.     INSURANCE

6.01   The  Owner covenants with  the Trustee  throughout the  Credit Facility
       Period that:

       (a)   The  Owner shall,  at its  own expense, when  and so  long as any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured, or cause  the Rig to be insured, in  lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             protection  and  indemnity  risks, pollution  liability,  and war
             risks), in such  form (including without limitation,  the form of
             the loss  payable clause and the  designation of  named assureds)
             and  with such  first  class insurance  companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect  to   hull  and   machinery/increased  value   insurance,
             including war risk, the  Owner shall insure the Rig and  keep her
             insured,  or cause the Rig to be  insured, for an amount which is
             at  least the  full commercial  value of  the Rig,  and when such
             amount is aggregated  with the amount of  such insurance coverage
             on the Other Rigs, such aggregate  amount shall be at least  110%
             of the Total Commitment.   The Rig shall  in no event be  insured
             for an amount less than the agreed valuation as  set forth in the
             applicable  marine and war risk  policies.   Such insurance shall
             cover  marine and war  risk perils, on  hull and  machinery, with
             deductibles not in excess of US$500,000  (such deductibles not to
             apply in  the  case of  Total  Loss of  the  Rig), and  shall  be
             maintained  in  the broadest  forms  available  in the  American,
             British  and  Scandinavian insurance  markets  or  in such  other
             major  international   markets  reasonably   acceptable  to   the
             Administrative Agent.  The Owner shall  maintain, or cause to  be
             maintained,  protection and  indemnity  or equivalent  insurance,
             including  war  risk   protection  and  indemnity  coverage   and
             coverage against pollution liability,  in an amount not less than
             US$100,000,000   (or,  with   respect   to  pollution   liability
             coverage,  such greater amount  as may be  required from  time to
             time  by the  Oil  Pollution  Act  1990, or  other  Environmental
             Laws),  as and  when applicable  to the  Rig and  its operations,
             through   underwriters   or  associations   acceptable   to   the
             Administrative Agent.  In addition, the  Owner shall, at its  own
             expense,  furnish  to  the  Administrative  Agent  a  mortgagee's
             single interest policy providing coverage which, when  aggregated
             with  the   mortgagee's  interest  insurance  furnished   to  the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an amount equal  to at least 110% of the  aggregate amount of the
             Total  Commitment  (or  in  lieu  of  such  mortgagee's  interest
             insurance  Owner  shall cause  the  hull and  machinery/increased
             value  insurance to  be  endorsed to  afford  breach of  warranty
             coverage  for  the benefit  of the  Administrative Agent).   Such
             mortgagee's  interest  insurance  and  any  additional  insurance
             policies for  the benefit of  the Administrative  Agent shall  be
             maintained  in  the  broadest  form available  in  the  American,
             British and  Scandinavian markets  or  other major  international
             markets   acceptable   to  the   Administrative   Agent   through
             underwriters  acceptable to  the Administrative  Agent.   The Rig
             shall not operate  in or proceed  into any area then  excluded by
             trading  warranties  under  its  marine  or   war  risk  policies
             (including  protection  and  indemnity)  without   obtaining  any
             necessary   additional  coverage,   satisfactory   in  form   and
             substance, and  evidence  of which  shall  be furnished,  to  the
             Administrative Agent.

       (b)   The   policy  or  policies  of   insurance  shall  be  issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and  insuring   covenants   satisfactory  to   the
             Administrative Agent, and shall  be kept in full force and effect
             by the  Owner so long as any Obligations remain outstanding.  All
             such  policies,  binders and  other  interim  insurance contracts
             shall be executed and issued in the name of  the Owner and shall,
             to the extent  required herein, provide  that loss be  payable to
             the Administrative  Agent for  distribution by it  to itself, the
             Banks  and the  Owner as  their interests  may appear,  and shall
             provide for at least  ten days' prior notice  to be given to  the
             Administrative  Agent by  the underwriters or  association in the
             event of  cancellation or  the failure  of the Owner  to pay  any
             premium or call which  would suspend coverage under the policy or
             the payment of a  claim thereunder.  The Administrative Agent and
             the Trustee shall  be named as  co-assureds on all  such policies
             and   insurance   contracts,  but   without   liability   of  the
             Administrative  Agent  or  the  Trustee for  premiums  or  calls.
             Certified copies of  all such policies, binders and other interim
             insurance contracts shall  be deposited  with the  Administrative
             Agent.  Originals shall also  be provided upon the request of the
             Administrative   Agent.     The  Owner   shall  furnish   to  the
             Administrative Agent  annually a detailed report signed by a firm
             of marine  insurance brokers satisfactory  to the  Administrative
             Agent  as to the insurance  maintained in respect  of the Rig, as
             to their opinion as  to the adequacy thereof and as to compliance
             with the provisions of this Clause 6.01.

             Unless otherwise required by  the Administrative Agent by  notice
             to the underwriters, although the following  insurance is payable
             to the Administrative Agent,  (i) any loss under any insurance on
             the  Rig with respect  to protection and  indemnity risks  may be
             paid directly to the  Owner to reimburse it for any  loss, damage
             or expense  incurred by  it and covered  by such insurance  or to
             the person to  whom any liability  covered by such  insurance has
             been  incurred and  (ii) in  the case of  any loss  (other than a
             loss  covered by (i) above or by  the next following paragraph of
             this Clause 6.01(b)) under  any insurance with respect to the Rig
             involving  any  damage  to  the Rig,  the  underwriters  may  pay
             directly for the  repair, salvage  or other charges  involved or,
             if the Owner shall  have first fully repaired the  damage or paid
             all  of the  salvage  or other  charges,  may  pay the  Owner  as
             reimbursement  therefor; provided, however,  that if  such damage
             involves a before deductible loss in excess of  US$1,000,000, the
             underwriters shall not make such payment  without first obtaining
             the  written consent  thereto of the  Administrative Agent (which
             consent shall  not be unreasonably  withheld).  Any loss  covered
             by this paragraph which is paid  to the Administrative Agent  but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the Administrative Agent to, or as directed by, the  Owner and
             all other payments to the Administrative  Agent of losses covered
             by this  paragraph shall  be applied by  the Administrative Agent
             in accordance with Clause 10.01.

             In  the  event  of an  actual  or  constructive Total  Loss  or a
             compromised constructive Total Loss or requisition  of title, all
             insurance payments therefor shall  be paid to the  Administrative
             Agent.    The  Owner  shall  not   declare  or  agree  with   the
             underwriters  that  the Rig  is  a  constructive or  compromised,
             agreed  or  arranged constructive  Total Loss  without  the prior
             written consent of the Administrative Agent.

       (c)   In the event of an  actual or constructive Total Loss of the Rig,
             the  Administrative  Agent  shall  retain out  of  the  insurance
             payments received  on account of such  loss any sum or  sums that
             shall be  or become  owing  to the  Secured  Creditors under  the
             Security Documents,  whether or  not  the same  be  then due  and
             payable, together with accrued  interest and the cost, if any, of
             collecting the  insurance,  and pay  the balance  as provided  in
             Clause 10.

       (d)   The Owner shall  comply with and satisfy all of the provisions of
             any applicable law, regulation, proclamation  or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will maintain,  or cause to be  maintained, all  certificates
             or other evidence of financial responsibility  as may be required
             by  any such law, regulation,  proclamation or order with respect
             to the trade which the Rig from time to time is engaged in.

       (e)   The  Owner shall renew all insurances as they expire and so as to
             insure that there is  no gap in coverage, keep the Administrative
             Agent advised of the  progress of such renewals, and procure that
             the   insurers  shall   promptly  confirm   in  writing   to  the
             Administrative Agent as and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or other  sums  payable  in  respect of  all  such
             insurances and produce  all relevant receipts when so required by
             the Administrative Agent.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments  of   insurance   aforesaid  relative   to  the   Rig
             (including any  warranties, express or implied,  therein) without
             first  obtaining the  consent of the  insurers to such employment
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants  with  the  Trustee  that  throughout the  Credit
       Facility Period the Owner will:

       (a)   maintain  its existence  as a  corporation in  good standing duly
             organized under the laws of the State of Oklahoma;

       (b)   keep the  Rig documented in  its name as  a United States  vessel
             and to do or allow to be done  nothing whereby such documentation
             may be forfeited or imperilled;

       (c)   not  without the  previous  consent in  writing  of the  Trustee,
             change the name of  the Rig or make  any modification to the  Rig
             which would or  might materially alter  the structure or  type or
             reduce the performance characteristics  of the Rig or  materially
             reduce the value of the Rig;

       (d)   keep the Rig in a  good and efficient state of repair  consistent
             with  the ownership  and operating  practices of  first-class rig
             owners and operators so  as to maintain her present class (namely
             +A1  Self-Elevating  Drilling Unit)  at  the  American Bureau  of
             Shipping free  of recommendations  and qualifications and  change
             of class, save those  notified to and approved in writing  by the
             Trustee  and so  as  to comply  with  all  laws, regulations  and
             requirements  (statutory   or  otherwise)  from   time  to   time
             applicable to vessels documented under the  laws and flag of  the
             United   States  and   applicable  to  vessels   trading  to  any
             jurisdiction to which the Rig may,  subject to the provisions  of
             this Mortgage, trade from time to time;

       (e)   procure that all repairs to or  replacement of any damaged,  worn
             or lost  parts or equipment be  effected in such  manner (both as
             regards workmanship  and quality of materials) as to not diminish
             the value of the Rig and  not to remove any material part of,  or
             item  of equipment installed on, the  Rig unless the part or item
             so removed  is forthwith  replaced  by a  suitable  part or  item
             which  is in the same  condition as or  better condition than the
             part or item removed, is free  from any Security Interest  (other
             than Permitted  Liens) in  favor  of any  person  other than  the
             Trustee and becomes  on installation on  the Rig the  property of
             the  Owner  and  subject  to  the  security constituted  by  this
             Mortgage;

       (f)   submit the  Rig to  such periodical or  other surveys  as may  be
             required  for  classification  purposes  and if  so  required  to
             supply to the Trustee  and the Administrative Agent copies of all
             survey reports issued in respect thereof;

       (g)   permit   the  representatives  of  the  Administrative  Agent  or
             independent surveyors representing the  Trustee to board the  Rig
             at  all  reasonable times  and  upon  reasonable  notice for  the
             purpose  of inspecting  her  condition  or  for  the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and to afford all proper facilities for such inspections;

       (h)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in respect  of the  Rig and  all other  outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the Rig  pursuant  to  legal process,  or  in  the event  of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require; 

       (i)   not  employ the  Rig  or allow  her  employment in  any trade  or
             business  which is  unlawful  under  the  laws  of  any  relevant
             jurisdiction or  in carrying  illicit or  prohibited goods or  in
             any   manner   whatsoever  which   may  render   her   liable  to
             destruction,  seizure  or  confiscation  and  in   the  event  of
             hostilities  in any part of the world (whether war be declared or
             not) not employ  the Rig or suffer her employment in carrying any
             contraband  goods or  to  enter or  trade  to any  zone  which is
             declared  a war  zone  by  any government  or  by the  war  risks
             insurers of the Rig unless there shall have been  effected by the
             Owner  (at  its expense)  such  special,  additional or  modified
             insurance cover as the Administrative Agent may require;

       (j)   promptly furnish to  the Trustee all  such information as  it may
             from time  to time  require regarding  the  Rig, her  employment,
             position  and  engagements,   particulars  of  all   towages  and
             salvages and, upon the  request of the Trustee in writing, copies
             of  all  charters  and  other  contracts  for her  employment  or
             otherwise howsoever concerning her;

       (k)   notify  both the  Trustee and the  Administrative Agent forthwith
             by telex or telecopy thereafter confirmed by letter of:

             (i)    any  casualty to the Rig  which is  or is  likely to  be a
                    Major Casualty, and

             (ii)   any  occurrence in consequence whereof the  Rig has become
                    or is,  by the  passing of  time  or  otherwise, likely to
                    become a Total Loss, and

             (iii)  any requirement or  recommendation made by  any insurer or
                    classification society or by any competent authority which
                    is not immediately complied with, and

             (iv)   any arrest  of  the  Rig  or  the  exercise  or  purported
                    exercise of any lien  on the Rig or any requisition of the
                    Rig for hire, and

             (v)    any intended dry docking of the Rig, as to which the Owner
                    shall   give  the  Trustee ten  (10)  days  prior  notice,
                    provided,  that in the  event of any emergency dry docking
                    of   the  Rig,  the  Owner  shall immediately  notify  the
                    Trustee; and

             (vi)   any intended deactivation or lay-up of the Rig (other than
                    for normal periods of inactivity between contracts for the
                    Rig during  which  periods the  Rig  remains  manned)  and
                    obtain the prior written consent of the Trustee;

       (l)   keep  proper books  of account in  respect of the  Rig and as and
             when the  Trustee or the Administrative  Agent may  so reasonably
             require make  such books  available for  inspection on behalf  of
             the Trustee and furnish satisfactory evidence that  the wages and
             allotments  and the insurance  of the master  and crew  are being
             regularly  paid  and that  all  deductions from  crew's  wages in
             respect  of  tax  and/or  social  security  liability  are  being
             properly accounted  for and  that  the master  has  no claim  for
             disbursements other than those  incurred by  him in the  ordinary
             course of trading on the voyage then in progress;

       (m)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement  which apply to  the Rig and  the Owner, and  in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (n)   not without the previous  consent in writing of the Trustee (such
             consent not to  be unreasonably withheld),  put the Rig  into the
             possession of any person for the purpose of  work being done upon
             her in  an amount exceeding or likely  to exceed Two Million Five
             Hundred  Thousand  United States  Dollars (US$2,500,000)  (or the
             equivalent in any other currency) unless such person shall  first
             have  given to the Trustee  and in  terms reasonably satisfactory
             to it a written undertaking  not to exercise any lien on  the Rig
             for the cost of such work or otherwise;

       (o)   comply  with  and satisfy  all the  requirements  and formalities
             established by  the Ship  Mortgage Act  and  any other  pertinent
             legislation of the  United States to  perfect this Mortgage  as a
             legal,  valid and  enforceable first and  preferred lien upon the
             Rig  and promptly  to furnish  to the  Trustee from  time to time
             such proof as the Trustee may  request for its satisfaction  with
             respect to  the Owner's  compliance with the  provisions of  this
             sub-clause;

       (p)   place, and  use due  diligence  to retain,  a properly  certified
             copy of this Mortgage on  board the Rig with her papers and cause
             such certified copy of this  Mortgage to be exhibited to  any and
             all persons having  business with the  Rig which might  give rise
             to any lien thereon  other than a lien for crew's  wages, general
             average and salvage and to any  representative of the Trustee  on
             demand and to place and keep  prominently displayed in the  chart
             room and  in  the master's  cabin  of the  Rig a  framed  printed
             notice in plain type in English  of such size that the  paragraph
             of reading  matter shall  cover a space  not less  than 6  inches
             wide and 9 inches high reading as follows:


                                       "NOTICE OF MORTGAGE

             This Rig is covered  by a First Preferred Mortgage to CHRISTIANIA
             BANK OG  KREDITKASSE, NEW  YORK BRANCH,  as Security Trustee  for
             the  Banks defined in  the said Mortgage  under authority  of the
             United  States Ship Mortgage Act, 1920, as amended, recodified as
             46 U.S.C.   31301 et  seq.  Under the terms of the  said Mortgage
             neither the Owner nor  any charterer nor the  master of this  Rig
             nor  any  other  person has  any  right,  power  or  authority to
             create,  incur or permit  to be  imposed upon  this Rig  any lien
             whatsoever  other  than for  crew's  wages,  general average  and
             salvage."

       (q)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (r)   notify the Trustee forthwith upon:

             (i)    any Environmental Claim which could  reasonably be expected
                    to result in damages in excess of  US$200,000 being or made
                    against  the  Owner, or  otherwise in  connection with  the
                    Rig; or

             (ii)   any Environmental Incident occurring,  and keep the Trustee
                    advised,  in  writing on  such regular  basis  and in  such
                    detail  as  the  Trustee  shall  require,  of  the  Owner's
                    response  to  such  Environmental  Claim  or  Environmental
                    Incident;

       (s)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by  the  Credit Agreement)  without  the written  consent  of the
             Trustee having first  been obtained, and any such written consent
             to  any  one  such  sale,  mortgage  or  transfer  shall  not  be
             construed to be  a waiver of this  provision with respect to  any
             subsequent proposed  sale, mortgage or transfer.   Any such sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and  the lien it creates.   The Owner  shall not charter
             the  Rig to, or permit the Rig  to serve under any contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or "specially  designated national"
             of a "designated  foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury Department,  31 C.F.R. Parts 500 and  515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity"  in  the Libyan
             Sanctions Regulations of  the United States Treasury  Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity  of the Government of  Iraq" or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified  at 31 C.F.R.  Part 575, as  amended, all within  the
             meaning   of   said   Regulations   or    of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters  or enter any Cuban port for  any purpose or engage in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the   Iranian  Transactions
             Regulations, 31  C.F.R. Part 560,  as amended, the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such 
             transaction  or violation  would (i)  expose  the Trustee  to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (t)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to law, shall  not abandon the  Rig in  a foreign port,
             shall not  engage in  any unlawful trade  or violate  any law  or
             carry any cargo that  shall expose the Rig to penalty, forfeiture
             or  capture, and shall not  do, or  suffer or permit  to be done,
             anything which can or  may injuriously affect the registration or
             enrollment of the  Rig under the  laws of  the United States  and
             will at all times keep the Rig duly documented thereunder.

8.     PROTECTION OF SECURITY

8.01   The  Trustee shall  without prejudice  to its  other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not  bound) at any time  and as often  as may be  necessary to take any
       such action  as it  may in  the reasonable exercise  of its  discretion
       think  fit for the  purpose of protecting  or maintaining  the security
       created by  this Mortgage  and the  other Credit  Documents (including,
       without limitation, such action as is  referred to in Clause 8.02)  and
       each  and  every  expense,  liability,  or   loss  (including,  without
       limitation,  legal fees)  so incurred  by the  Secured Creditors  in or
       about the protection or  maintenance of the said security together with
       interest payable thereon under  Clause 4.01(b) shall be repayable to it
       by the Owner on demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if  the Owner does not comply  with the provisions of Clause 6 or
             any of them the Administrative Agent  shall be entitled (but  not
             bound)  to effect  or  to replace  and  renew  and thereafter  to
             maintain the Insurances  in such manner  as in its  discretion it
             may  think fit and  to require that  all policies,  contracts and
             other  records relating  to the Insurances  (including details of
             any  correspondence concerning  outstanding claims)  be forthwith
             delivered  to  such  brokers  as  the  Administrative  Agent  may
             nominate and  to  collect, recover,  compromise and  give a  good
             discharge for all claims  then outstanding or thereafter  arising
             under  the  Insurances  or  any of  them  and  to  take  over  or
             institute  (if necessary using  the name of  the Owner)  all such
             proceedings in connection  therewith as the  Administrative Agent
             in  its absolute  discretion  may think  fit  and  to permit  the
             brokers  through whom the collection  or recovery  is effected to
             charge the usual brokerage therefor; and

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or  any of  them  the  Trustee shall  be
             entitled (but not  bound) to arrange for the carrying out of such
             repairs to and/or  surveys of the  Rig as it  deems expedient  or
             necessary; and 

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or  any of them  the Trustee shall  be entitled  (but not
             bound)  to  pay  and  discharge  all   such  debts,  damages  and
             liabilities  and  all   such  tolls,  dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND TRUSTEE'S POWERS

9.01   Upon  the happening  of any of  the Events of  Default specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction  to the effect that an Event of Default
       has occurred (and whether  prior to or after the Required  Banks having
       served on the Owner any  such notice as is referred to  in Section 9 of
       the Credit Agreement)  the security constituted by this  Mortgage shall
       become  immediately enforceable  and the Trustee  shall be entitled, as
       and when  it may see fit, to put into force  and exercise all or any of
       the powers possessed by it as  mortgagee of the Rig or otherwise and in
       particular:

       (a)   to  exercise  all  the  rights and  remedies  in  foreclosure and
             otherwise  given to  mortgagees by  applicable law  including the
             provisions of the Ship Mortgage Act;

       (b)   to take possession of the Rig whether  actually or constructively
             and/or otherwise to take control of the Rig wherever the  Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon  demand to surrender  the same to  the Trustee
             without legal  process and without  liability of the Trustee  for
             any losses  or  damages incurred  thereby and  without having  to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith  delivered to  or to  the  order of  the Administrative
             Agent;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure   that   the  Administrative   Agent   collect,  recover,
             compromise  and give  good discharge  for any  and all  moneys or
             claims  for moneys  then outstanding or  thereafter arising under
             the Insurances or any Requisition Compensation and  to permit any
             brokers  through  whom  collection  or recovery  is  effected  to
             charge the usual brokerage therefor;

       (e)   to  take over  or institute (if  necessary using the  name of the
             Owner) or, to the extent lawful, procure that  the Administrative
             Agent take over  or institute all such  proceedings in connection
             with the Rig,  the Insurances, or any Requisition Compensation as
             the  Trustee  in  its  absolute  discretion  thinks  fit  and  to
             discharge,  compound, release  or compromise  claims  against the
             Owner in respect of the Rig which  have given or may give rise to
             any charge or lien on the Rig or which are or may  be enforceable
             by proceedings against the Rig;

       (f)   to  sell the  Rig  or any  share therein  with  or without  prior
             notice to the  Owner free from  any claim of  or by the  Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or all of the purchase price be deferred)  as the Trustee in
             its absolute discretion may determine with  power to postpone any
             such sale,  without being  answerable for any  loss occasioned by
             such sale or resulting  from postponement thereof, and/or  itself
             to purchase  the Rig at  any such public auction  and to  set off
             the purchase price against all or any part of the Obligations;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and  for such period  as the Trustee  in its  absolute discretion
             deems expedient and for the purposes  aforesaid the Trustee shall
             be  entitled to do  all acts and  things incidental  or conducive
             thereto  and  in  particular  to  enter  into  such  arrangements
             respecting the Rig,  and the insurance, management,  maintenance,
             repair,  classification, chartering  and  employment  of the Rig,
             in all respects as  if the Trustee were the owner  of the Rig and
             without being responsible for any loss thereby incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses as  may  be  incurred  by the  Trustee  in  or  about  the
             exercise   of   the   power   vested   in   the   Trustee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or  loss incurred by  the Trustee in  or about
             or  incidental  to the  exercise  by  it  of any  of  the  powers
             aforesaid.

9.02   The Trustee shall not  be obliged to make any enquiry  as to the nature
       or  sufficiency of any payment received by it under this Mortgage or to
       make any  claim, take  any action or  enforce any  rights and  benefits
       assigned to the Trustee  by this Mortgage or  to which the Trustee  may
       at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors, nor their  agents, managers, officers,
       employees,  delegates and  advisers shall  be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with the  exercise  or purported  exercise  of any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Trustee  shall not by reason of the taking possession of the Rig be
       liable  to account  as mortgagee-in-possession  or for  anything except
       actual receipts or  be liable for any loss upon  realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any sale  of the  Rig  or any  share therein  by the  Trustee the
       purchaser shall  not be bound  to see or enquire  whether the  power of
       sale  of the Trustee has arisen in the manner provided in this Mortgage
       and the  sale shall be deemed to be within the power of the Trustee and
       the  receipt of the  Trustee for the  purchase money  shall effectively
       discharge  the purchaser who shall not  be concerned with the manner of
       application  of the  proceeds  of  sale or  be  in  any way  answerable
       therefor.

10.    APPLICATION OF MONEYS

10.01  All moneys  received by the Trustee (or  any other Secured Creditor, as
       the case  may be) in respect of sale of the Rig or any part thereof, in
       respect of recovery under the Insurances  or in respect of  Requisition
       Compensation, shall be applied in the following manner:

       (i)   first, to  the payment  of all amounts  owing the Trustee  of the
             type described in clauses (ii) and (iii) of Recital E;

       (ii)  second,  to  the  extent  moneys  remain  after  the  application
             pursuant  to the  preceding clause  (i), an  amount equal  to the
             outstanding  Obligations shall  be paid to  the Secured Creditors
             as  provided  in  Clause  10.01(c), with  each  Secured  Creditor
             receiving an amount equal  to such Obligations held by  it or, if
             the  proceeds  are   insufficient  to  pay  in   full  all   such
             Obligations, its Pro Rata  Share (as defined below) of the amount
             remaining to be distributed; and

       (iii) third,  to  the  extent  moneys  remain   after  the  application
             pursuant to  the preceding  clauses (i)  and (ii), and  following
             the  termination of  this Mortgage  pursuant to  Clause 3.01, any
             surplus  then remaining  shall  be paid  to  the Owner,  subject,
             however, to the  rights of the holder  of any then existing  Lien
             of which the Trustee has actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount  of such Obligations owing to  or held by such
             Secured  Creditor  and  the  denominator  of  which is  the  then
             outstanding  amount of  all such  Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Trustee shall  be entitled  to request  each Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed to  it  and shall  be  entitled to  reply upon  the  amounts
             stated therein in making such distribution. 

       (c)   All payments required to  be made to Secured  Creditors hereunder
             shall be  made  to  the Administrative  Agent  under  the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01,  the Trustee shall  be entitled to  reply upon
             (i) the Administrative Agent under the  Credit Agreement and (ii)
             the   Secured   Creditors  for   a   determination   (which   the
             Administrative  Agent  and   each  Secured  Creditor,   by  their
             acceptance  of the benefits of  this Mortgage  shall be obligated
             to provide  upon  request  of the  Trustee)  of  the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge (including  by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in furnishing  information  pursuant  to  the
             preceding sentence, and the  Trustee, in acting hereunder,  shall
             be entitled to assume  that no obligations other than  principal,
             interest and regularly  accruing fees  are owing  to any  Secured
             Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Trustee in its absolute discretion may require for:

       (a)   perfecting or protecting the security created (or  intended to be
             created) by this Mortgage; or

       (b)   preserving  or protecting any  of the rights  of the  Trustee and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the  security constituted by this  Mortgage and the
             covenants and obligations  of the Owner under this Mortgage shall
             enure to the benefit  of any transferee, successor or assignee of
             the Trustee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Trustee under this Mortgage,

       in  any such  case, forthwith  upon demand  by the  Trustee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner,  by way of security  and in order  more fully to  secure the
       performance   of  the  Obligations,  hereby  irrevocably  appoints  the
       Trustee as its  attorney until the  Total Commitment is  terminated and
       none of the Obligations remain outstanding for the purposes of: 

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required)  registering in its name all  documents which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on  behalf  of  the  Trustee  until  this
             Mortgage shall have  become immediately  enforceable pursuant  to
             Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise  of such power as is referred to  in Clause 12.01(a) by or
       on  behalf of the  Trustee shall  not put any  person dealing  with the
       Trustee  upon  any  enquiry as  to  whether  this  Mortgage  has become
       enforceable nor shall  such person  be in  any way  affected by  notice
       that this Mortgage  has not become enforceable and, in relation to both
       Clauses 12.01(a)  and 12.01(b),  the exercise  by  the Trustee  of such
       power shall be conclusive evidence of its right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in the preservation or enforcement of  the rights of the  Trustee
             under this Mortgage; or

       (c)   on  the  release of  the Rig  from the  security created  by this
             Mortgage,

       and each of  the Secured Creditors and each such  agent or attorney may
       retain and  pay all sums in  respect of the same  out of money received
       under  the powers  conferred  by  this  Mortgage.    All  such  amounts
       recoverable by such Secured Creditors or  such agent or attorney  shall
       be recoverable on a full indemnity basis.

13.02  Without limiting the foregoing  Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees,  attorneys and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or  any of them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including wrongful  death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;  (c)  any   Environmental  Claim  brought   or
       threatened,  or settlement  reached;  or  (d)  any violation  of  laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable  law or regulation, and whether pursuant  to a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or for  any  other  reason,  any  payment under  or  in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than the currency in which  such payment is due under or  in connection
       with  this Mortgage  (the "contractual currency"),  then to  the extent
       that the amount of such payment actually received by the  Trustee, when
       converted into the contractual  currency at the rate of exchange, falls
       short of the amount due  under or in connection with this Mortgage, the
       Owner,  as a separate and  independent obligation,  shall indemnify and
       hold harmless  the Trustee against the  amount of such shortfall.   For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which the Trustee is able on the date of such payment  (or, if it is
       not practicable for the  Trustee to  purchase the contractual  currency
       with the payment currency on the date  of such payment, at the rate  of
       exchange as  soon afterwards as  is practicable for  the Trustee to  do
       so) to purchase the  contractual currency with the payment currency and
       shall take  into account any  premium and other costs  of exchange with
       respect thereto.

14.    EXPENSES

14.01  The Owner shall pay to  any Secured Creditor on demand all  costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the  negotiation,  preparation   and  execution  of  the   Credit
             Agreement, the Subsidiary Guaranty  and the Credit Documents  (or
             any of them); and/or

       (b)   the preserving  or enforcing  of, or  attempting  to preserve  or
             enforce,  any  of its  rights  under  the Credit  Agreement,  the
             Subsidiary Guaranty or the Credit Documents (or any of them).

14.02  The  Owner shall  pay to the  Trustee and  the Administrative  Agent on
       demand  all costs, fees  and expenses (including,  but not  limited to,
       legal  fees and  expenses) and  Taxes thereon  incurred by  any Secured
       Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of  the Credit  Agreement, the  Subsidiary Guaranty or  the
             Credit  Documents  (or  any  of them)  requested  by  the  Owner,
             necessary  or advisable under applicable  law or  relating to the
             syndication of the Facility,  or initiated during the  occurrence
             and continuation of an Event of Default; and/or

       (b)   any consent or  waiver required from  the Trustee in  relation to
             the  Credit  Agreement, the  Subsidiary Guaranty  and  the Credit
             Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty and the Credit  Documents (or any of  them) may be subject  or
       give  rise and  shall indemnify the  Trustee on demand  against any and
       all  liabilities with  respect  to  or  resulting  from  any  delay  or
       omission on the part of the Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All  notices to the Trustee hereunder shall  be in writing and shall be
       made to the following address:

                    Christiania Bank og Kreditkasse, New York Branch
                   11 West 42nd Street
                   7th Floor
                   New York, New York  10036
                   Telefax:  (212) 827-4888
                   Attention:  Loan Administration

       All  other notices  shall be  made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall enure to the benefit of
       the  Owner,  the Secured  Creditors and  their  respective transferees,
       successors and  permitted assigns  and references in  this Mortgage  to
       any of them shall be construed accordingly.

16.02  The Owner may  not assign  or transfer all  or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to Section  12.04 of the  Credit Agreement, each Bank  has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations under the Credit  Agreement on the terms  therein provided.
       The  Trustee  shall  notify  the  Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The  total amount of  the direct or  contingent obligations  secured by
       this  Mortgage is  Three Hundred Million  U.S. Dollars (US$300,000,000)
       of  principal  plus  interest,  fees, commissions  and  performance  of
       mortgage  covenants.   The interest  of the Owner  in the  Rig is 100%.
       The interest of the Trustee  in the Rig is 100%.  The date  of maturity
       is  November 13,  2001, and  the discharge  amount is  the same  as the
       total amount plus  such other sums as shall be  payable by the Owner to
       the Banks under the Credit Agreement or the Subsidiary Guaranty.

18.    MISCELLANEOUS

18.01  If at any time  any one or more of  the provisions in this Mortgage  is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability of  the
       remaining provisions of this  Mortgage shall not be in any way affected
       or impaired thereby.

18.02  The Trustee, at any time and  from time to time, may delegate  by power
       of attorney or in any other manner to any person  or persons all or any
       of the  powers, authorities  and  discretions which  are  for the  time
       being  exercisable by the  Trustee under this  Mortgage in  relation to
       the Rig.  Any such delegation  may be made upon such terms and  subject
       to such regulations as  the Trustee may think  fit.  The Trustee  shall
       not  be in any way liable  or responsible to the  Owner for any loss or
       damage  arising from any  act, default, omission  or misconduct  on the
       part of any such delegate.

18.03  A  certification or  determination  by the  Trustee  as  to any  matter
       provided for in this Mortgage shall, in the absence of  manifest error,
       be conclusive and binding on the Owner.

19.    JURISDICTION

19.01  The Owner agrees that the Trustee shall have the  liberty but shall not
       be  obliged to take  any proceedings  in the courts  of any  country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose  of any proceedings for such enforcement  the Owner
       hereby  submits to the jurisdiction of the courts of any country of the
       choice of the Trustee.

19.02  Without prejudice to the  generality of Clause 19.01, the Trustee shall
       have the right to  arrest and take action  against the Rig at  whatever
       place the  Rig shall be found lying  and for the purpose  of any action
       which  the Trustee may bring before  the courts of such jurisdiction or
       other judicial authority  and for the  purpose of any action  which the
       Trustee may  bring against the Rig, any writ, notice, judgment or other
       legal process or documents may (without  prejudice to any other  method
       of service under applicable law)  be served upon the master of  the Rig
       (or upon anyone acting as  the master) and such service shall be deemed
       good service on the Owner for all purposes.

19.03  The  Owner  agrees that  should  the Trustee  bring  a legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in connection  with this Mortgage, no  immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed by  or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby consents generally in  respect of any legal action  or
       proceedings arising  out of or in connection with  this Mortgage to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made  or given in such
       action or proceedings.

IN WITNESS  whereof the Owner has caused this Mortgage to be executed the  day
and year first before written.

HRB RIG CORPORATION


By_____________________________________
    Name:  T.W. Nagle
    Title:  Vice President



                          ACKNOWLEDGEMENT OF MORTGAGE


STATE OF NEW YORK      )
                       )  S.S.
COUNTY OF NEW YORK     )



On this 13th  day of November, 1996  before me personally appeared  Timothy W.
Nagle  to me known  who being  by me  duly sworn  did depose  and say  that he
resides at 13307 Tosca  Lane, Houston, TX; that  he is Vice President  for HRB
RIG CORPORATION, the corporation described in and which executed the foregoing
instrument; and  that he  signed his  name thereto  by order  of the Board  of
Directors of HRB RIG CORPORATION.



________________________                                                   
Notary Public 


                                                             Exhibit 10.129 



                       INDENTURE OF FIRST NAVAL MORTGAGE

                  READING AND BATES BORNEO DRILLING CO., LTD.

                                    - and -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
             administrative agent, arranger and security trustee,

                                 as Mortgagee

                                CHARLEY GRAVES

                            Dated November 13, 1996

==============================================================================
                                     INDEX


CLAUSE      SUBJECT MATTER                                                PAGE

  1         REPRESENTATIONS AND COVENANTS . . . . . . . . . . . . . . . . . 2 
  2         DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 4 
  3         MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
  4         PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . .  10 
  5         PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
  6         INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  12 
  7         RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
  8         PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
  9         ENFORCEABILITY AND MORTGAGEE'S POWERS . . . . . . . . . . . .  19 
  10        APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  21 
  11        FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  22 
  12        POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
  13        INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  23 
  14        EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  24 
  15        COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
  16        ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  25 
  17        TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
  18        WAIVER; AMENDMENT . . . . . . . . . . . . . . . . . . . . . .  25 
  19        MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
  20        JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  26 

EXHIBIT 1   FORM OF CREDIT AGREEMENT
EXHIBIT 2   FORM OF SUBSIDIARY GUARANTY

==============================================================================

       THIS INDENTURE OF FIRST NAVAL MORTGAGE made and  entered into this 13th
day of November, 1996, between READING AND BATES BORNEO DRILLING CO., LTD., an
Oklahoma  company duly constituted and existing in conformity with the laws of
the  State of  Oklahoma with its  principal office at  901 Threadneedle, Suite
200,  Houston, Texas  77079  (hereinafter called the  "Owner") and CHRISTIANIA
BANK OG KREDITKASSE, NEW YORK BRANCH having its office at 11 West 42nd Street,
New  York,  NY  10036,  as  agent  for  the  Banks  (as  hereinafter  defined)
(hereinafter called the "Mortgagee"), on  the Panamanian offshore drilling rig
CHARLEY GRAVES  of 5,829  gross  tons, 1,748  net tons  and with  a length  of
87.78m, a  breadth of  21.34m and  a depth  of 6.55m and  Permanent Patent  of
Navigation  No. 6618-76-CH  (hereinafter  called the  "Rig"), duly  registered
under the laws and flag of the Republic of Panama, the detailed description of
which is hereinafter more particularly set forth.

                             W I T N E S S E T H :

WHEREAS

(A)    The Owner is the sole owner  of the whole of the offshore drilling  rig
       CHARLEY  GRAVES documented under the  laws and flag  of the Republic of
       Panama.

(B)    By  a  Credit Agreement  dated as  of November  13, 1996  (as modified,
       amended  or supplemented  from time  to  time, the  "Credit Agreement")
       among  (i)  Reading &  Bates  Corporation, a  Delaware  corporation, as
       guarantor ("Holdings"), (ii) Reading & Bates  Drilling Co., an Oklahoma
       corporation  (the  "Borrower"),  (iii) the  banks  party  thereto  (the
       "Banks"), (iv) Credit  Lyonnais New York Branch and Banque Indosuez, as
       documentation  agents   (the  "Documentation   Agents")  and  (v)   the
       Mortgagee, as administrative  agent, arranger and security  trustee (in
       such  capacity, the  "Administrative Agent") (the  form of which Credit
       Agreement together with  the form of  promissory note  of the  Borrower
       attached as Exhibit  B thereto but  without the  remaining exhibits  is
       attached hereto as Exhibit 1), it was agreed  amongst other things that
       the Banks would  make available to  the Borrower  a reducing  revolving
       credit facility  (the "Facility")  in the  maximum aggregate  principal
       amount at  any one  time outstanding  of Three  Hundred Million  United
       States Dollars  (U.S.$300,000,000), providing for  the making of  Loans
       and the  issuance  of  and  participations  in  Letters  of  Credit  as
       contemplated therein.   As  required by Article  1515 Section 3  of the
       Commercial Code of Panama, the dates on which payments of principal  in
       respect of the Loans are due  may be determined from the provisions  of
       the Credit Agreement including Section 4.

(C)    The obligations  of  the Borrower  with  respect  to the  Facility  are
       evidenced  by the  Credit  Agreement and  the  other Credit  Documents,
       including the promissory notes of  the Borrower payable to the order of
       the  respective Banks  (each a  "Note" and,  collectively, the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    The  Owner,  for  good  and   valuable  consideration  has  authorized,
       executed and delivered  a Subsidiary Guaranty (as modified,  amended or
       supplemented from  time to  time, the "Subsidiary  Guaranty"), the form
       of which Subsidiary Guaranty is attached hereto as  Exhibit 2, in favor
       of the  Agent  guaranteeing the  performance  by  the Borrower  of  its
       obligations under the Credit Agreement and the other Credit Documents.

(E)    This Mortgage is  made for the benefit  of the Mortgagee to  secure the
       guaranty  by the Owner of  (i) the full and  prompt payment when due of
       (x) the  principal of  interest on  the Notes  issued, and Loans  made,
       under  the Credit  Agreement,  and  all reimbursement  obligations  and
       Unpaid Drawings  with respect to the Letters of Credit issued under the
       Credit  Agreement  and  (y)  all  other  obligations  and  indebtedness
       (including,  without   limitation,  indemnities,   Fees  and   interest
       thereon)  of the  Borrower  to the  Secured  Creditors (as  hereinafter
       defined), whether  now existing  or hereafter  incurred under,  arising
       out of or in connection with the Credit  Agreement and the other Credit
       Documents  including, without  limitation, this  Mortgage  and the  due
       performance  and compliance  by  the Borrower  with  all of  the terms,
       conditions and  agreements contained  in the  Credit Agreement and  the
       other Credit  Documents including, without  limitation, this  Mortgage;
       (ii) any and  all sums advanced by  the Mortgagee in order  to preserve
       the  Collateral  (as  hereinafter defined)  or  preserve  its  security
       interest in the  Collateral; (iii) in the  event of any  proceeding for
       the  collection or  enforcement of  any  indebtedness, obligations,  or
       liabilities of the Borrower referred  to in clause (i) above, after  an
       Event of Default  shall have occurred and be continuing, the reasonable
       expenses of the  Mortgagee of re-taking, holding, preparing for sale or
       lease,  selling  or   otherwise  disposing  of  or  realizing   on  the
       Collateral,  or  of  any  exercise  by  the  Mortgagee  of  its  rights
       hereunder, together with  reasonable attorneys' fees of  counsel to the
       Mortgagee and court costs; and (iv) all amounts paid  by any Indemnitee
       as to  which  such Indemnitee  has  the  right to  reimbursement  under
       Clause  13 of  this Mortgage  (all such  obligations, liabilities, sums
       and expenses  referred  to in  clauses  (i)  through (iv)  above  being
       collectively referred  to as the  "Obligations").   It is  acknowledged
       and agreed that  the "Obligations" shall include  extensions of  credit
       of the  types described above, whether outstanding  on the date of this
       Mortgage  or  extended  from  time  to  time  after  the  date of  this
       Mortgage.

(F)    This Indenture  of First Naval Mortgage,  which is entered into  by the
       Owner  in consideration  of  the Banks  agreeing  to make  the Facility
       available to  the Borrower  and as  a condition  thereto and  for other
       good and  valuable consideration provided by the Banks (the sufficiency
       of which the Owner hereby acknowledges).

NOW,  THEREFORE, the appearing parties, each in  the name and on behalf of his
respective principal, state that  they hereby execute this Indenture  of First
Naval Mortgage pursuant to the following representations:

1.     REPRESENTATIONS AND COVENANTS

1.01   The Owner represents and covenants to the Mortgagee that:

       a.    The Rig  is permanently registered  in the name  of the Owner  in
             the Public Registry of the City of Panama,  Republic of Panama in
             the  Microfilm Section  (Mercantile),  Microjacket N-12808,  Roll
             34425, Frame 95;

       b.    The Owner, as  sole legal and  beneficial owner of  the Rig,  has
             received   and  presently   possesses  a   Permanent  Patent   of
             Navigation for the  Rig, duly issued  by the  Republic of  Panama
             under No. 6618-76-CH;

       c.    Neither  the whole nor  any share  in the  Rig is subject  to any
             Security Interest  (as  defined  herein)  (except  for  Permitted
             Liens (as defined herein) and the lien of this Mortgage);

       d.    the  Owner has  not sold  or  transferred, or  agreed to  sell or
             transfer, title to the Rig or any share therein;

       e.    the Owner  is a corporation  duly organized and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       f.    the  Owner  has full  power  and  authority  (i)  to execute  and
             deliver this Mortgage, (ii) to  mortgage the Rig as  security for
             the Obligations and (iii) to  comply with the provisions  of, and
             perform all its obligations under, this Mortgage;

       g.    the  Owner has  complied with  all statutory  and  other material
             requirements  relative   to  the   ownership,  registration   and
             operation of the Rig;

       h.    the Owner  has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the legal,  valid  and  binding obligation  of  the
             Owner enforceable against the Owner in accordance with its  terms
             (except  to   the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency,  moratorium or other laws  of general
             application  relating  to   or  affecting   the  enforcement   of
             creditors' rights  as from  time to  time in  effect and  general
             equitable  principles) and when  preliminarily recorded  with the
             Public Registry  in Panama  through the  Panamanian Consulate  in
             New York, New  York will create  a legal,  valid and  enforceable
             first  priority mortgage  lien  on the  Rig  subject only  to the
             permanent  filing of  this  Mortgage in  the  Public Registry  in
             Panama within six  months of the date of the preliminary recorded
             filing;

       i.    the entry  into and  performance by  the Owner  of this  Mortgage
             does  not and  will  not during  the  Credit Facility  Period (as
             defined herein) violate  in any respect (i) any law or regulation
             of any  governmental or official  authority or body,  or (ii) any
             of  the  constitutive  documents  of   the  Owner  including  the
             Certificate of  Incorporation or By-laws, as amended from time to
             time,  or  (iii)  any  material   agreement,  contract  or  other
             undertaking to  which the Owner  is a party  or which  is binding
             upon the Owner or any of its assets;

       j.    all consents,  licenses, approvals and authorizations required in
             connection  with  the  entry  into,  performance,   validity  and
             enforceability   of    this   Mortgage   and   the   transactions
             contemplated hereby and  thereby have  been obtained  and are  in
             full force  and  effect and  will  be  so maintained  during  the
             Credit Facility Period;

       k.    save for such  registrations and filings  as are  referred to  in
             this Mortgage, it is  not necessary  for the legality,  validity,
             enforceability  or  admissibility in  evidence  of  this Mortgage
             that it  or any document  relating thereto be registered,  filed,
             recorded or enrolled  with any court or authority in any relevant
             jurisdiction or that any stamp, registration or similar taxes  be
             paid on or in relation to this Mortgage;

       l.    the  Owner is  in compliance  with  all applicable  Environmental
             Laws  (as defined  herein) and  all  Environmental Approvals  (as
             defined  herein)   relating  to  the   Rig,  its  operation   and
             management and  the business of  the Owner (as  now conducted and
             as reasonably  anticipated to  be conducted  in the future)  have
             been obtained or complied with;

       m.    no Environmental  Claim  (as defined  herein)  has been  made  or
             threatened against the Owner  or otherwise in connection with the
             Rig;

       n.    no  Environmental  Incident   (as  defined   herein)  which   has
             resulted, or which  could reasonably be expected to result, in an
             Environmental Claim in excess of US$200,000 has occurred; and

       o.    The Owner  hereby  affirms  as  its representations  all  of  the
             statements contained in the "WHEREAS" clauses of this Mortgage.

1.02   The representations and  warranties of the Owner set out in Clause 1.01
       shall survive the execution  of this Mortgage and shall be deemed to be
       repeated at the time  of the  making of each  Loan (as defined  herein)
       and at  the time of the issuance of each Letter of Credit, with respect
       to the facts and circumstances existing  at each such time, as if  made
       at each such time.

1.03   The  Mortgagee  represents  that  the  Banks  have  made  the  Facility
       available to  the Borrower,  as evidenced  by, inter  alia, the  Credit
       Agreement, the Notes and  the Security  Documents (as defined  herein),
       and accepts  the Mortgage constituted  by this instrument  upon the Rig
       as  security for  the due  and prompt  payment and  performance  of the
       obligations of the Owner under the Subsidiary Guaranty.

1.04   Each of the contracting parties declares that it is satisfied with  the
       representations and covenants  made by the  other and  accepts them  as
       true;  and the  parties  mutually  acknowledge their  respective  legal
       status as  well  as the  authority  of  the persons  representing  them
       respectively  in this  instrument to sign  the same on  behalf of their
       respective principals.

2.     DEFINITIONS AND INTERPRETATION

2.01   In this Mortgage unless  the context otherwise requires,  the following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank" means any  lender listed from  time to  time on Annex  I to  the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the  same meaning for such term as set forth in
       the Credit Agreement; 

       "Commitment" shall have the  same meaning for such term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the  Credit Agreement,  dated as of  November
       13,  1996, among  Holdings, the Borrower,  the Banks, the Documentation
       Agents, and the Administrative Agent  first referred to in  Recital (B)
       hereto as modified, amended or supplemented from time to time;

       "Credit Documents"  shall have the meaning  for such term  as set forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no  Letters  of  Credit  remain outstanding  and  the  Unpaid  Drawings
       together with  interest, fees  and all  other obligations  are paid  in
       full;

       "Default  Rate"  shall   mean  the  rate  of  interest   calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions or  authorization  required under  applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal  reports  prepared  by Holdings  or  any  of  its Subsidiaries
       solely in  the ordinary  course of such  Person's business  and not  in
       response  to  any  third  party action  or  request  of  any  kind)  or
       proceedings relating in any way to any Environmental Law  or any permit
       issued,  or  any  approval  given,  under  any  such  Environmental Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by    any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release of  Environmentally
       Sensitive  Material   from  the  Rig,   (ii)  any  incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than  the Rig  and which involves  collision between  the Rig  and such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which  Environmentally Sensitive Material is  released from a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing and  the like,  into  or upon  any  land or  water or  air,  or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule  of common law now or hereafter in effect  and in each case as
       amended, and  any  judicial or  administrative interpretation  thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including, without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act,  as amended, 33 U.S.C.  1251 et seq.; the
       Toxic Substances  Control Act, 15 U.S.C.  7401  et seq.; the Clean Air
       Act, 42 U.S.C.  7401 et  seq.; the Safe Drinking Water Act, 42  U.S.C.
        3808  et seq.;  the Oil Pollution  Act of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall have the  same meaning for such  term as set forth in  the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation,  transformers or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous  waste,"  "restricted hazardous  waste,"  "toxic substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import,  under any applicable  Environmental Law;  and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect of the  Rig or otherwise by the Owner  (whether
       in the sole name  of the Owner or in the  joint names of the Owner  and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for such  term as  set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of  Credit" shall have  the same meaning  for such term as  set
       forth in Section 2.01(a) of the Credit Agreement;

       "Loan(s)" shall  have the same  meaning for such  term as set forth  in
       the Credit Agreement;

       "Major Casualty" means any casualty  to the Rig in respect  whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means  each  promissory note  of  the  Borrower referred  to  in
       Recital (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (E) hereto;

       "Oil Pollution Act 1990" means the Oil Pollution Act 1990 (33 U.S.C.  
       2701 et seq.), as amended;

       "Other  Rigs"  means, individually  or  collectively, each  of  (i) the
       semi-submersible  drilling  rig  JACK  BATES   owned  by  the  Borrower
       documented under the  laws and  flag of  the United  States of  America
       with  Official Number 906283 of 19,928 gross registered tons and 14,948
       net registered tons; (ii) the  jack-up drilling rig D. R. STEWART owned
       by  Reading &  Bates  Exploration  Co. ("R&B  Exploration")  documented
       under the  laws  and flag  of the  United States  with Official  Number
       626904 of  6,494 gross registered  tons and 5,834  net registered tons;
       (iii) the  offshore drilling rig  W. D. KENT owned  by R&B  Exploration
       documented under the laws and  flag of the United States  with Official
       Number 583169 of 5,383 gross  registered tons and 4,185  net registered
       tons; (iv)  the jack-up drilling rig  RON TAPPMEYER owned  by Reading &
       Bates (A)  Pty Ltd.  documented under the  laws and  flag of  Australia
       with Official Number 855213 of  11,455 gross registered tons and  3,436
       net registered tons;  (v) the  semi-submersible drilling  J. W.  McLEAN
       owned  by the  Borrower  documented  under the  laws  and  flag of  the
       Republic  of  Panama with  Patente  Number 25384-PEXT  of  15,453 gross
       registered  tons  and  4,636  net  registered   tons;  (vi)  the  semi-
       submersible drilling rig  RIG 41 owned by the Borrower documented under
       the laws and flag of the Republic of Panama with the Patente  Number to
       be  assigned on  the date  hereof of  10,078 gross  registered tons and
       3,024 net registered  tons; (vii) the  jack-up drilling  rig HARVEY  H.
       WARD owned  by HRB Rig Corporation  documented under the  laws and flag
       of the United States  of America with Official  Number 642693 of  4,121
       gross registered tons and 3,079  net registered tons; (viii)  the jack-
       up drilling  rig F.  G. McCLINTOCK owned  by Reading &  Bates Offshore,
       Limited documented  under the  laws and  flag of  the United  States of
       America with Official  Number 562059 of 5,525 gross registered tons and
       1,657 net registered  tons; (ix) the jack-up drilling rig RANDOLPH YOST
       owned by the Borrower documented under the laws  and flag of the United
       States  of  America   with  Official  Number  601699  of   4,701  gross
       registered  tons  and  4,701  net  registered  tons;  (x)  the  jack-up
       drilling rig  J. T. ANGEL  owned by  the Borrower documented  under the
       laws and  flag of the  United States  of America  with Official  Number
       651645 of  4,186 gross registered  tons and 3,090  net registered tons;
       (xi) the  jack-up drilling rig  ROGER W. MOWELL  owned by the  Borrower
       documented under  the laws  and flag  of the  United States of  America
       with Official  Number 645360 of  4,121 gross registered  tons and 3,079
       net registered tons;  (xii) the jack-up drilling rig GEORGE H. GALLOWAY
       owned by  Reading & Bates  Offshore, Limited documented  under the laws
       and flag  of the United States  of America with Official  Number 651646
       of  3,729 gross  registered  tons and  2,496  net registered  tons; and
       (xiii) the jack-up drilling rig  C. E. THORNTON to be owned by  HRB Rig
       Corporation  documented under the laws and flag of the United States of
       America with Official  Number 673210 of 6,096 gross registered tons and
       6,096 net registered tons;

       "Permitted Liens"  means: (1)  liens incident  to  expenses of  current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30)  days (or being contested in good faith, provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a bond or  other security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet  due and payable;  (3) liens  for taxes,  assessments, governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested  in good  faith, provided  such liens  are not  in excess  of
       U.S.$5,000,000.00,  and  if in  excess thereof,  then the  Owner shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other  security satisfactory to the Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of  Clause 6 hereof (except  that no lien  shall be deemed
       not covered  by insurance to the extent insurance  in force would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant  to any judgment  or to  an order of  attachment, distraint or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the  payment or  discharge  of  which  provisions satisfactory  to  the
       Administrative Agent have  been made as evidenced by the Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to the lien of this Mortgage  or (ii) constitute a maritime
       lien which would  in any event be entitled as such to priority over the
       Mortgage  under the  United States  shipping laws  or other  applicable
       laws  relating to the Rig's  trading pattern.   Nothing herein shall be
       deemed  a  waiver  of  the  priority  preferred  lien  status  of  this
       Mortgage;

       "Protection  and  indemnity risks"  means  the usual  risks  covered by
       protection   and  indemnity   associations   of  international   repute
       including the  proportion not recoverable  in case  of collision  under
       the ordinary running-down clause  (unless such is recoverable under the
       relevant hull and machinery coverage);

       "Required Banks"  shall have the meaning for such  term as set forth in
       the Credit Agreement;

       "Requisition  Compensation"  means all  moneys  or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means the  vessel described in  Recital (A)  hereto and  includes
       any  share or  interest  therein  and  her engines,  machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and  appurtenances whether  on board  or ashore and  whether
       now  owned or  hereafter acquired  (but excluding  therefrom any leased
       equipment owned by third parties);

       "Secured Creditors" shall mean the  Banks, the Letter of  Credit Issuer
       and  the  Administrative Agent  under  and  as  defined  in the  Credit
       Agreement;

       "Security Documents"  shall have the same meaning for  such term as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge, lien, hypothecation, assignment, trust  arrangement,
       title retention or other security interest  or arrangement of any  kind
       whatsoever;

       "Subsidiary Guaranty"  means  the agreement  dated as  of November  13,
       1996 made by the  Owner in favor of  the Administrative Agent as  first
       referred to in Recital (D) hereto;

       "Taxes" shall have the same  meaning for such term as set  forth in the
       Credit Agreement;

       "Total  Commitment" shall have  the same  meaning for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive,  arranged, agreed, or
       compromised  total loss  of the Rig;  (b) the requisition  for title or
       other compulsory  acquisition or forfeiture  of the Rig otherwise  than
       by  requisition for  hire; (c) the  capture, seizure, arrest, detention
       or confiscation of the  Rig by any government  or by persons acting  or
       purporting  to  act  on behalf  of  any government  unless  the  Rig be
       released from such capture,  seizure, arrest or detention within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing"  shall have  the same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War Risks" includes the risk of mines and all  risks excluded from the
       standard  form of  English marine  policy by  the free  of  capture and
       seizure clause.

2.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall bear the same meanings when used in this Mortgage.

2.03   In this Mortgage:

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified,  all  references to  Clauses  are to  clauses  of this
             Mortgage;

       (b)   unless  the   context  otherwise  requires,  words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references    to   persons    include   bodies    corporate   and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

3.     MORTGAGE

3.01   In order to secure the Obligations the  Owner has granted, conveyed and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the  Mortgagee,  its successors  and  assigns, in  accordance  with the
       provisions  of Chapter  V,  Title IV  of  Book Second  of  the Code  of
       Commerce  and  pertinent  provisions  of  the  Civil  Code   and  other
       legislation  of the  Republic of  Panama,  the whole  of  the Rig,  the
       detailed description of which is as follows:

             offshore   drilling   rig    CHARLEY   GRAVES;   gross    tonnage
             approximately  5,829;  net  tonnage  approximately  1,748; length
             overall  87.78 meters,  breadth 21.34 meters;  depth 6.55 meters;
             built in  1975 by  Far East Livingston  Shipbuilding Ltd.;  radio
             call letters HP-3275;

       TO  HAVE AND  TO HOLD the  same unto the  Mortgagee, its successors and
       assigns forever, upon  the terms herein  set forth for  the enforcement
       of the Obligations.

       PROVIDED  ONLY and the condition of these  presents is such that if the
       Owner or its successors and assigns shall pay or cause to be  repaid to
       the Secured Creditors  and their respective successors  or assigns  the
       Obligations  as and  when  the same  shall  become due  and  payable in
       accordance with the terms  of the Subsidiary Guaranty and this Mortgage
       and shall observe  and comply with  the covenants terms  and conditions
       contained in  the Subsidiary Guaranty and  this Mortgage,  expressed or
       implied to be  performed, observed or complied with by  and on the part
       of the Owner  and its successors and  assigns, then these  presents and
       the rights  hereunder shall cease, determine  and be void and,  in such
       event,  the Mortgagee  agrees to  furnish, execute  and record,  at the
       expense of the Owner, all  such documents as the Owner may   reasonably
       require  to discharge this Mortgage, otherwise to be and remain in full
       force and effect.

       Notwithstanding anything  to the  contrary herein  it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that  if any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by it in  relation to the Rig  and none of the  Secured Creditors shall
       be under any obligation  of any kind  whatsoever in respect thereof  or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

3.03   This  Mortgage, when  it shall  have been  duly executed and  signed on
       behalf of  the parties,  shall  be provisionally  recorded through  the
       Panamanian Consulate at New  York, New York and thereafter within three
       months permanently recorded in the Public Registry in Panama.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay  and  indemnify  the  Secured  Creditors  for   all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges  or other  moneys as  are stated  in this Mortgage  to be
             payable  by the  Owner to  or recoverable  from the  Owner by the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs, duties, fees, charges or other moneys  referred to
             in Clause 4.01(a) from the  date on  which the relevant  expense,
             claim, liability,  loss, cost, duty, fee,  charge or  other money
             is  paid by  any  Secured Creditor  (both  before  and after  any
             relevant judgment) at the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing  to any Secured  Creditor, as the  case may  be, under this
             Mortgage  and the  Subsidiary Guaranty  at the  times and  in the
             manner specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Mortgagee as  a continuing  security for the  performance of  the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be  prejudiced or affected  by any of the  other Security
             Documents;

       (c)   the  Mortgagee  shall not  have  to wait  for  the Administrative
             Agent  to enforce  any  of the  other  Security Documents  before
             enforcing the security created by this Mortgage;

       (d)   no  failure or delay on  the part of  the Mortgagee in exercising
             any right, power, privilege  or remedy hereunder and no course of
             dealing between Owner and  Mortgagee or the Administrative  Agent
             shall  operate as  a  waiver thereof;  nor  shall  any single  or
             partial  exercise  of  any  right,  power,  privilege  or  remedy
             hereunder preclude any other or  further exercise thereof or  the
             exercise of any other right, power  or privilege hereunder.   The
             rights and remedies herein expressly provided  are cumulative and
             not exclusive of  any rights or  remedies which the  Mortgagee or
             the Administrative Agent would otherwise have.   No notice to  or
             demand on the Owner  in any case shall  entitle the Owner to  any
             other  or   further  notice  or   demand  in  similar  or   other
             circumstances  or  constitute  a  waiver  of the  rights  of  the
             Mortgagee  or the Administrative  Agent to  any other  or further
             action in any circumstances without notice or demand; and

       (e)   any waiver by the Mortgagee of any terms of  this Mortgage or any
             consent given by the  Mortgagee under this Mortgage shall only be
             effective if  given in writing and then only  for the purpose and
             upon the terms for which it is given.

5.02   Any  settlement or discharge under  this Mortgage between the Mortgagee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured  Parties or  any of  them by  the Credit  Parties or  any other
       person being avoided or set-aside or ordered  to be refunded or reduced
       by  virtue  of  any  provision or  enactment  relating  to  bankruptcy,
       insolvency, administration  or liquidation for the  time being in force
       and,  if  such  condition is  not  satisfied,  the  Mortgagee  shall be
       entitled  to  recover  from the  Owner  on  demand  the  value of  such
       security or  the amount of  any such payment as  if such  settlement or
       discharge had not occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair,  affect or discharge such  rights and security, in  whole or
       in part, including without limitation,  and whether or not known to  or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:

       (a)   any waiver granted to or composition  with the Credit Parties  or
             any other person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit  Parties  or  any other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents or any other document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or  frustration   of   any
             obligations  of the Credit  Party or any  other person  under the
             Credit Agreement, any of  the other Credit Documents or any other
             document or security.

6.     INSURANCE

6.01   The Owner covenants with the  Mortgagee throughout the Credit  Facility
       Period that:

       (a)   The  Owner shall, at  its own  expense, when and  so long  as any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured, or cause the Rig  to be insured, in lawful money  of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             Protection  and Indemnity  Risks,  pollution  liability, and  War
             Risks), in such form (including  without limitation, the form  of
             the loss  payable clause and  the designation of named  assureds)
             and  with  such  first class  insurance  companies, underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect   to  hull   and  machinery/increased   value  insurance,
             including war  risk, the Owner shall insure the  Rig and keep her
             insured, or cause  the Rig to be insured, for  an amount which is
             at  least the  agreed value of  the Rig, and  when such amount is
             aggregated with  the total amount of  such insurance  coverage on
             the Other Rigs, such aggregate  amount shall be at least  110% of
             the  aggregate amount  of the  Total Commitment.   Such insurance
             shall cover marine  and war risk  perils, on hull  and machinery,
             with  per  occurrence deductibles  not  in  excess of  US$500,000
             (such deductibles not to apply  in the case of Total Loss  of the
             Rig), and shall be  maintained in the broadest forms available in
             the  American, British  and Scandinavian insurance  markets or in
             such  other   major  international  markets  acceptable   to  the
             Mortgagee.   The  Owner shall  maintain protection  and indemnity
             insurance, including  war risk protection and  indemnity coverage
             and coverage against pollution  liability, in an amount not  less
             than  US$100,000,000  (or, with  respect  to pollution  liability
             coverage, such greater amount  as may be at least equal from time
             to time to the limitation of  liability amount applicable to  the
             Rig  under the  Oil  Pollution Act  1990  or other  Environmental
             Laws),  through underwriters  or  associations acceptable  to the
             Mortgagee.   In addition,  the Owner shall,  at its  own expense,
             furnish  to  the   Administrative  Agent  a   mortgagee's  single
             interest policy  providing coverage  which, when aggregated  with
             the   mortgagee's   interest    insurance   furnished   to    the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an amount equal  to at least 110% of the  Total Commitment (or in
             lieu  of such  mortgagee's interest  insurance Owner  shall cause
             the hull and machinery/increased  value insurance to be  endorsed
             to  afford breach  of warranty  coverage for  the benefit  of the
             Administrative Agent).   Such mortgagee's interest  insurance and
             any  additional  insurance  policies  for  the   benefit  of  the
             Administrative  Agent shall  be maintained  in the  broadest form
             available  in the  American, British and  Scandinavian markets or
             other   major    international   markets   acceptable    to   the
             Administrative  Agent  through  underwriters  acceptable  to  the
             Administrative Agent.   The Rig shall  not operate in  or proceed
             into  any area  then  excluded by  trading  warranties under  its
             marine or war risk policies (including  protection and indemnity)
             without  satisfying  the  conditions  of  the  relevant  policies
             evidence of which shall be furnished to the Mortgagee.

       (b)   The   policy  or  policies  of  insurance   shall  be  issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and   insuring  covenants   satisfactory   to  the
             Administrative Agent, and shall  be kept in full force and effect
             by the  Owner so long as  the Security Documents and  the Secured
             Indebtedness  shall be  outstanding.  All  such policies, binders
             and  other  interim insurance  contracts  shall  be executed  and
             issued  in the  name  of  the  Owner  and shall,  to  the  extent
             required herein,  provide that  the Mortgagee shall  be the  loss
             payee for  distribution by it to itself, the  Banks and the Owner
             as  their interests may  appear, and shall  provide for  at least
             ten days'  prior  notice to  be given  to  the Mortgagee  by  the
             underwriters or association in the  event of cancellation or  the
             failure of  the Owner  to pay  any  premium or  call which  would
             suspend coverage  under the  policy  or the  payment  of a  claim
             thereunder.   The Mortgagee and the  Banks shall be named  as co-
             assureds  on  all  such  policies and  insurance  contracts,  but
             without liability of the  Mortgagee, or the Banks for premiums or
             calls.  Complete  certified copies of all such  policies, binders
             and  other interim insurance contracts  shall be delivered to the
             Mortgagee.  Originals shall  also be provided upon the request of
             the  Mortgagee.    The  Owner  shall  furnish  to  the  Mortgagee
             annually a detailed report signed by  a firm of marine  insurance
             brokers  satisfactory  to  the  Mortgagee  as  to  the  insurance
             maintained  in respect of the Rig, as  to their opinion as to the
             adequacy  thereof and  as to  compliance  with the  provisions of
             this Clause 6.01.

             Unless otherwise  required  by the  Mortgagee, by  notice to  the
             underwriters, although the following insurance is  payable to the
             Mortgagee, (i)  any loss  under  any insurance  on  the Rig  with
             respect  to Protection and Indemnity  Risks may  be paid directly
             to  the Owner  to reimburse it  for any  loss, damage  or expense
             incurred by it and covered  by such insurance or to the person to
             whom any  liability covered  by such insurance  has been incurred
             and (ii) in the  case of any loss  (other than a loss  covered by
             (i) above  or by  the  next following  paragraph  of this  Clause
             6.01(b)) under  any insurance with  respect to the Rig  involving
             any damage to the Rig,  the underwriters may pay directly for the
             repair, salvage or other  charges involved or, if the Owner shall
             have first  fully repaired  the  damage or  paid  the salvage  or
             other  charges,  may pay  the  Owner  as reimbursement  therefor;
             provided,  however,  that  if  such  damage   involves  a  before
             deductible  loss in  excess of US$1,000,000.00  (One Million U.S.
             Dollars),  the underwriters  shall not make  such payment without
             first  obtaining  the written  consent thereto  of  the Mortgagee
             (which consent  shall not  be unreasonably  withheld).  Any  loss
             covered  by this  paragraph which  is paid  to the  Mortgagee but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the Mortgagee to, or  as directed by, the Owner and  all other
             payments to  the Mortgagee  of losses  covered by this  paragraph
             shall be  applied  by the  Mortgagee  in accordance  with  Clause
             10.01.

             In  the event of  a Total Loss,  all insurance  payments therefor
             shall be paid to the  Mortgagee.  The Owner shall not  declare or
             agree with the underwriters that the Rig is a Total  Loss without
             the prior written consent of the Mortgagee.

       (c)   In  the event of  a Total  Loss of the  Rig, the  Mortgagee shall
             retain out of the  insurance payments received on account of such
             loss  any  sum or  sums  that shall  be  or become  owing  to the
             Secured  Creditors under  the Security Documents,  whether or not
             the  same shall be  then due and  payable, together  with accrued
             interest and the cost, if any,  of collecting the insurance,  and
             pay the balance as provided in Clause 10.

       (d)   The Owner shall comply with and satisfy all of the  provisions of
             any applicable law,  regulation, proclamation or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will  maintain, or cause to  be maintained,  all certificates
             or other evidence of financial responsibility  as may be required
             by any such law,  regulation, proclamation or order with  respect
             to the trade in which the Rig from time to time is engaged.

       (e)   The Owner shall renew  all such insurances as they expire  and so
             as  to  insure  that  there  is no  gap  in  coverage,  keep  the
             Mortgagee advised  of the  progress of  such renewals,  and shall
             provide evidence of such renewal in  writing to the Mortgagee  as
             and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions or  other  sums  payable in  respect  of  all  such
             insurances and produce all relevant receipts  when so required by
             the Mortgagee.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments  of   insurance   aforesaid  relative   to  the   Rig
             (including any  warranties, express or implied,  therein) without
             first obtaining the consent  to such  employment of the  insurers
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants with  the  Mortgagee that  throughout  the Credit
       Facility Period the Owner will:

       (a)   keep the Rig documented in  its name as a Panamanian  flag vessel
             and  do or allow  to be done  nothing whereby  such documentation
             may be forfeited or imperilled;

       (b)   not  without the  previous  consent in  writing of  the Mortgagee
             except as otherwise contemplated by the  Credit Agreement, change
             the  name of  the Rig or  make any modification  to the Rig which
             would  materially   alter  the  structure,  type  or  performance
             characteristics of the Rig and which would materially  reduce the
             value of the Rig;

       (c)   keep the Rig in a  good and efficient state of  repair consistent
             with first-class ship-ownership and management  practice employed
             by owners of drilling rigs of similar size and type and so as  to
             maintain her  present class (namely +A1 Barge) at American Bureau
             of  Shipping  free  of  recommendations  and  qualifications  and
             change of class, save  those approved in writing by the Mortgagee
             and  so as  to  comply with  all  applicable  laws, treaties  and
             conventions  of  the  Republic  of Panama  and  other  applicable
             jurisdictions, and  rules and regulations  issued thereunder, and
             have on  board as  and when  required thereby valid  certificates
             showing compliance therewith;

       (d)   procure that all repairs to or  replacement of any damaged,  worn
             or  lost parts  or  equipment in  such  manner  (both as  regards
             workmanship  and  quality  of  materials) as  to  not  materially
             diminish  the value  of the  Rig and  not to  remove any material
             part of, or item  of equipment owned  by the Owner installed  on,
             the  Rig unless  (i) the  part or  item  so removed  is forthwith
             replaced  by  a suitable  part  or  item  which  is in  the  same
             condition as or better condition than  the part or item  removed,
             is free from  any Security Interest (other than  Permitted Liens)
             in favor of  any person other than  the Mortgagee and becomes  on
             installation on the Rig the property of the Owner and  subject to
             the  security constituted  by this Mortgage  or (ii)  the removal
             will not materially diminish the value of the Rig;

       (e)   submit the  Rig to  such periodical  or other surveys  as may  be
             required  for  classification  purposes  and if  so  required  to
             supply to the  Mortgagee copies of  all survey reports  issued in
             respect thereof;

       (f)   permit the Mortgagee by  independent surveyors  to board the  Rig
             at  all  reasonable  times and  upon  reasonable  notice  for the
             purpose  of  inspecting  her condition  or  for  the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and  to  afford  all  proper  facilities  for  such  inspections,
             provided that unless an  Event of Default shall have occurred and
             be continuing, the cost  of any such inspection shall be  for the
             account of the Mortgagee;

       (g)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged  on or  in respect  of  the Rig  and all  other outgoings
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig  pursuant  to legal  process,  or in  the  event  of her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (h)   not  employ the  Rig or  allow  her employment  in  any trade  or
             business  which  is  unlawful  under  the  laws  of  any relevant
             jurisdiction or  in carrying  illicit or prohibited  goods or  in
             any manner whatsoever which can reasonably  be expected to render
             her liable  to destruction,  seizure or  confiscation and  in the
             event of hostilities  in any part  of the world  (whether war  be
             declared or not) not  employ the Rig or suffer her  employment in
             carrying  any contraband goods  or to enter or  trade to any zone
             which  is declared  a war  zone by any  government or  by the War
             Risks insurers of the Rig unless  there shall have been  effected
             by  the  Owner  (at  its  expense)  such  special,  additional or
             modified   insurance  cover  as   the  Mortgagee  may  reasonably
             require;

       (i)   promptly furnish to the  Mortgagee all such information as it may
             from time  to time  require regarding  the  Rig, her  employment,
             position  and   engagements,  particulars  of  all   towages  and
             salvages  and,  upon the  request  of the  Mortgagee  in writing,
             copies of all charters  and other contracts for her employment or
             otherwise howsoever concerning her;

       (j)   notify the  Mortgagee forthwith by telecopy  thereafter confirmed
             by letter of:

             (i)   any  casualty to  the Rig  which is  or is  likely to  be a
                   Major Casualty; and

             (ii)  any  occurrence in  consequence whereof the  Rig has become
                   or is,  by the  passing of  time  or  otherwise, likely  to
                   become a Total Loss; and

             (iii) any  requirement or  recommendation made by  any insurer or
                   classification  society or by any competent authority which
                   is not complied with; and

             (iv)  any  arrest  of  the  Rig  or  the  exercise  or  purported
                   exercise of  any lien on the  Rig or any requisition of the
                   Rig for hire; and

             (v)   any intended dry docking of the Rig, as  to which the Owner
                   shall  give the  Mortgagee 30 days  prior notice, provided,
                   that  in the event of any emergency dry docking of the Rig,
                   the Owner shall immediately notify the Mortgagee; and

             (vi)   any intended deactivation or lay-up of the  Rig (other than
                    for  normal periods of inactivity between contracts for the
                    Rig  during  which  periods the  Rig  remains  manned)  and
                    obtain the prior written consent of the Mortgagee;

       (k)   keep  proper books of account  in respect  of the Rig  and as and
             when  the  Mortgagee may  so reasonably  require make  such books
             available for  inspection on behalf of  the Mortgagee and furnish
             satisfactory  evidence  that the  wages  and  allotments and  the
             insurance  of the master  and crew are  being regularly  paid and
             that all deductions  from crew's wages  in respect of  tax and/or
             social  security liability  are being properly  accounted for and
             that the master has no claim  for disbursements other than  those
             incurred by him in  the ordinary course of trading on  the voyage
             then in progress;

       (l)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement  which apply to  the Rig and  the Owner,  and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (m)   not without  the previous  consent  in writing  of the  Mortgagee
             (such consent not to  be unreasonably withheld), put the Rig into
             the possession of any person  for the purpose of work  being done
             upon  her in an amount exceeding or  likely to exceed Two Million
             Five  Hundred  United States  Dollars  (US$2,500,000.00) (or  the
             equivalent in  any other  currency) unless (i)  such person shall
             first have given  to the Mortgagee  and in terms  satisfactory to
             it a written undertaking not  to exercise any lien on the Rig for
             the cost of such work or otherwise or (ii) the cost  of such work
             shall be fully covered by applicable insurance;

       (n)   comply with  and satisfy all  the provisions  of applicable  laws
             and  regulations  of  the Republic  of  Panama,  as  at  any time
             amended, in order  to establish and  maintain this Mortgage  as a
             first priority  naval mortgage  thereunder upon the  Rig and upon
             all  renewals, improvements and  replacements made  in or  to the
             same, and promptly to furnish to the Mortgagee  from time to time
             such proofs  as the  Mortgagee may  request for its  satisfaction
             with respect to the compliance by  the Owner with the  provisions
             of this  sub-clause, including, appropriate  certificates of  the
             Public  Registry  showing  that  this  Mortgage   has  been  duly
             registered and  filed and  is a  first and absolute  lien on  the
             Rig;

       (o)   place, and  use due  diligence  to retain,  a properly  certified
             copy of this Mortgage on  board the Rig with her papers and cause
             such certified copy of  this Mortgage to be exhibited to  any and
             all persons having  business with the  Rig which might  give rise
             to  any lien  thereon  other than  a lien  for  crew's wages  and
             salvage and to any  representative of the Mortgagee on demand and
             to place and  keep prominently displayed in the chart room and in
             the master's cabin of  the Rig a framed  printed notice in  plain
             type  in English  of  such size  that  the  paragraph of  reading
             matter  shall cover  a space  not less than  6 inches  wide and 9
             inches high reading as follows:

                                               "NOTICE OF MORTGAGE

                    This  Rig  is  subject  to  an  Indenture  of  First  Naval
             Mortgage in favor  of CHRISTIANIA BANK OG  KREDITKASSE, NEW  YORK
             BRANCH, as  Administrative Agent  for the  Banks defined in  said
             Mortgage,  in conformity with the  provisions of Chapter V, Title
             IV of  Book Second  of the Code  of Commerce,  and the  pertinent
             provisions of  the  Civil  Code  and  other  legislation  of  the
             Republic  of Panama.   Under the terms  of said  Mortgage neither
             the  owner, any charterer,  the Master  of the Rig  nor any other
             person shall have the  right, power or authority to create, incur
             or permit  to be placed  upon the Rig  any other  lien whatsoever
             other than  for current  crew's wages and  salvage and  Permitted
             Liens (as that term is defined in said Mortgage)."

       (p)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (q)   notify the Mortgagee forthwith upon:

             (i)   any Environmental Claim  which could reasonably be expected
                   to result in damages in excess of  US$200,000 being or made
                   against  the  Owner, or  otherwise in  connection with  the
                   Rig; or

             (ii)  any   Environmental  Incident   occurring,  and   keep  the
                   Mortgagee advised,  in writing on such regular basis and in
                   such detail as the  Mortgagee shall require, of the Owner's
                   response  to  such  Environmental  Claim  or  Environmental
                   Incident.

       (r)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by the  Credit  Agreement) without  the  written consent  of  the
             Mortgagee  having  first  been  obtained, and  any  such  written
             consent  to any one such sale,  mortgage or transfer shall not be
             construed to be  a waiver of  this provision with respect  to any
             subsequent proposed sale,  mortgage or transfer.   Any such sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and  the lien it creates.   The Owner shall  not charter
             the Rig to, or permit  the Rig to serve under any  contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or  "specially designated national"
             of a "designated foreign  country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United  States Treasury Department, 31  C.F.R. Parts 500 and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the Government  of  Libya"  or  "Libyan  entity"  in  the  Libyan
             Sanctions Regulations  of the United States  Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of  the Government of Iraq"  or "Iraqi Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified at  31 C.F.R.  Part 575, as  amended, all within  the
             meaning   of   said    Regulations   or   of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter any Cuban  port for any purpose or engage  in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the  Iranian   Transactions
             Regulations,  31 C.F.R.  Part 560, as  amended, the Foreign Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction or violation would  (i) expose  the Mortgagee to  any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (s)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary   to  law  (except  where  the  failure  to  operate  in
             compliance with any law  would not have a material adverse effect
             on the Owner, the  Rig or the lien  of this Mortgage), shall  not
             abandon  the Rig  in a foreign  port and shall  not engage in any
             unlawful trade or violate  any law or carry any cargo  that shall
             expose the Rig to forfeiture or capture.

8.     PROTECTION OF SECURITY

8.01   The Mortgagee shall  without prejudice to  its other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at any time and  as often as may be necessary (but unless an
       Event of  Default shall  have  occurred and  be  continuing with  prior
       written notice to  the Owner) to take any such  action as it may in the
       reasonable  exercise of  its discretion  think fit  for the  purpose of
       protecting or  maintaining the  security created by  this Mortgage  and
       the other Credit Documents (including, without  limitation, such action
       as  is  referred  to  in  Clause 8.02)  and  each  and  every  expense,
       liability, or  loss (including,  without  limitation, reasonable  legal
       fees)  so incurred by the Secured Creditors  in or about the protection
       or  maintenance of  the said  security together  with interest  payable
       thereon under Clause 4.01(b) shall  be repayable to it by the  Owner on
       demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the  Owner does not  comply in any  material respect with  the
             provisions  of Clause 6  or any  of them  the Mortgagee  shall be
             entitled (but not  bound) to effect  or to replace and  renew and
             thereafter to maintain the Insurances in  such manner it, in  its
             discretion,  may  think fit  and  to require  that  all policies,
             contracts   and  other   records  relating   to  the   Insurances
             (including details  of any correspondence  concerning outstanding
             claims)  be forthwith delivered to such  brokers as the Mortgagee
             may  nominate  and,  upon  the  direction  of  the  Mortgagee  to
             collect, recover,  compromise and  give a good  discharge for all
             claims  then   outstanding  or   thereafter  arising  under   the
             Insurances  or any  of them  and to  take over  or institute  (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection   therewith  as   the   Mortgagee   in  its   absolute
             discretion, may think fit  and to permit the brokers through whom
             the  collection  or recovery  is  effected  to  charge the  usual
             brokerage therefor;

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  and/or 7.01(f)  or any  of them  the Mortgagee  shall be
             entitled (but not  bound) to arrange for the carrying out of such
             repairs to and/or  surveys of the  Rig as  it deems expedient  or
             necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) or any of them, the Mortgagee shall be entitled  (but not
             bound)  to  pay   and  discharge  all  such  debts,  damages  and
             liabilities   and  all  such  tolls,  dues,  taxes,  assessments,
             charges,  fines,  penalties and  other outgoings  as  are therein
             mentioned and/or to take  any such measures as it deems expedient
             or necessary for the purpose of securing the release of the Rig.

9.     ENFORCEABILITY AND MORTGAGEE'S POWERS

9.01   Upon  the happening  of any of  the Events of  Default specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to the effect that an Event  of Default
       has occurred  (and  whether prior  to  or after  the Mortgagee  or  the
       Required  Banks having  served  on the  Owner  any  such notice  as  is
       referred  to in  Section  9  of  the  Credit  Agreement)  the  security
       constituted by this Mortgage  shall become immediately enforceable  and
       the Mortgagee shall  be entitled, as  and when it  may see fit, to  put
       into force  and exercise all or  any of the  powers possessed by  it as
       mortgagee of the Rig or otherwise and in particular:

       (a)   to  exercise  all the  rights  and  remedies in  foreclosure  and
             otherwise  given to  mortgagees by  the laws  of the  Republic of
             Panama or other applicable laws;

       (b)   to take possession of  the Rig whether actually or constructively
             and/or otherwise to take control  of the Rig wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon demand  to surrender the same to the Mortgagee
             without legal process  and without liability of the Mortgagee for
             any  losses or  damages incurred  thereby and  without having  to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Mortgagee;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure that the Mortgagee collect, recover,  compromise and give
             good discharge for  any and all moneys or  claims for moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection or recovery is  effected to charge the usual brokerage
             therefor;

       (e)   to take  over or institute  (if necessary  using the name  of the
             Owner)  all such  proceedings  in connection  with  the Rig,  the
             Insurances, or any Requisition  Compensation as the Mortgagee  in
             its  absolute discretion  thinks fit and  to discharge, compound,
             release or compromise claims  against the Owner in respect of the
             Rig which have  given or may give  rise to any charge or  lien on
             the  Rig  or  which are  or  may  be  enforceable  by proceedings
             against the Rig;

       (f)   to  sell the  Rig  or any  share  therein with  or  without prior
             notice to  the Owner free from  any claim of  or by the  Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or all of  the purchase price be deferred) as  the Mortgagee
             in its absolute discretion may  determine with power to  postpone
             any such sale,  without being answerable for any  loss occasioned
             by  such  sale or  resulting  from  postponement thereof,  and/or
             itself to purchase the Rig  at any such public auction and to set
             off  the  purchase  price  against  all   or  any  part  of   the
             Obligations,  subject to  notice  of  sale  being  given  by  the
             Mortgagee to the  Owner and other  mortgagees of record,  if any,
             by  airmail,  postage  pre-paid  and  by publication  once  in  a
             newspaper  of general circulation in the City of Panama, Republic
             of Panama, not less  than twenty (20) calendar days in advance of
             the sale, to satisfy  the requirement of notice of sale contained
             in  Article 1527  of the  Panama Code  of Commerce.   Such notice
             shall be necessary only in respect of the initial date of sale;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and for such period as the  Mortgagee in its absolute  discretion
             deems  expedient  and for  the purposes  aforesaid  the Mortgagee
             shall  be  entitled  to do  all  acts  and  things  incidental or
             conducive   thereto  and   in  particular  to   enter  into  such
             arrangements respecting  the Rig, and  the insurance, management,
             maintenance, repair,  classification, chartering and   employment
             of the Rig, in  all respects as if  the Mortgagee were the  owner
             of  the Rig and  without being responsible  for any  loss thereby
             incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as may  be incurred  by  the Mortgagee  in  or about  the
             exercise   of   the  power   vested   in   the  Mortgagee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or loss  incurred by the Mortgagee in or about
             or  incidental  to  the exercise  by  it  of  any of  the  powers
             aforesaid.

9.02   The  Mortgagee shall  not be  obliged  to make  any enquiry  as to  the
       nature  or sufficiency  of  any  payment  received  by  it  under  this
       Mortgage or to make  any claim, take any  action or enforce any  rights
       and  benefits assigned  to the Mortgagee  by this Mortgage  or to which
       the Mortgagee may at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates  and advisers  shall be  liable for  any expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection with  the  exercise or  purported  exercise of  any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Mortgagee shall not by  reason of the taking possession of  the Rig
       be liable to  account as mortgagee-in-possession or for anything except
       actual receipts or  be liable for any loss upon  realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon any  sale of  the Rig or  any share  therein by the  Mortgagee the
       purchaser shall  not be bound  to see or enquire  whether the  power of
       sale  of the  Mortgagee  has  arisen in  the  manner  provided in  this
       Mortgage and the  sale shall be  deemed to be within  the power of  the
       Mortgagee and  the receipt  of  the Mortgagee  for  the purchase  money
       shall effectively  discharge the purchaser  who shall not be  concerned
       with the  manner of application  of the proceeds  of sale or be  in any
       way answerable therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All  moneys  received  by  the  Mortgagee or  any  other  Secured
             Creditor,  including, without  limitation, in respect  of sale of
             the  Rig or any  part thereof,  in respect of  recovery under the
             Insurances, or in respect  of Requisition Compensation, shall  be
             applied in the following manner:

             (i)   first, to  the payment of  all amounts  owing the Mortgagee
                   of the type described in clauses (ii)  and (iii) of Recital
                   E;

             (ii)  second,  to the extent  moneys remain after the application
                   pursuant to the  preceding clause (i),  an amount  equal to
                   the  outstanding Obligations  shall be paid  to the Secured
                   Creditors  as  provided  in   Clause  10.01(c),  with  each
                   Secured   Creditor  receiving  an   amount  equal  to  such
                   Obligations   held   by  it   or,  if   the  proceeds   are
                   insufficient  to pay in full all such  Obligations, its Pro
                   Rata Share  (as defined below) of  the amount remaining  to
                   be distributed; and

             (iii) third,  to the  extent moneys remain  after the application
                   pursuant  to  the  preceding  clauses  (i)  and  (ii),  and
                   following  the  termination of  this  Mortgage pursuant  to
                   Clause 3.01,  any surplus  then remaining shall be  paid to
                   the  Owner, subject, however,  to the  rights of the holder
                   of  any  then existing  Lien  of  which  the Mortgagee  has
                   actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then  unpaid amount of such Obligations owing  to or held by such
             Secured  Creditor  and  the  denominator  of  which  is the  then
             outstanding amount  of all  such Obligations.    For purposes  of
             determining  the  amount payable  to each  Secured  Creditor, the
             Mortgagee shall be entitled  to request each Secured Creditor  to
             furnish it with written  notice of the amount of Obligations then
             owed  to it  and  shall be  entitled  to reply  upon  the amounts
             stated therein in making such distribution.

       (c)   All  payments required to be  made to Secured Creditors hereunder
             shall  be made  to  the  Administrative  Agent under  the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01, the  Mortgagee shall be entitled to reply upon
             (i) the  Administrative Agent under the Credit Agreement and (ii)
             the   Secured   Creditors  for   a   determination   (which   the
             Administrative  Agent  and   each  Secured  Creditor,   by  their
             acceptance of  the benefits  of this Mortgage  shall be obligated
             to provide  upon request  of  the Mortgagee)  of the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge  (including by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in furnishing  information  pursuant  to  the
             preceding  sentence,  and  the  Mortgagee,  in  acting hereunder,
             shall be  entitled  to  assume that  no  obligations  other  than
             principal, interest and regularly accruing fees  are owing to any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Mortgagee in its absolute discretion may require for:

       (a)   perfecting or protecting the  security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting any of the  rights of the Mortgagee  and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the security  constituted by this Mortgage  and the
             covenants and obligations of  the Owner under this Mortgage shall
             inure to the benefit  of any transferee, successor or assignee of
             the Mortgagee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Mortgagee under this Mortgage,

       in any  such case, forthwith  upon demand by the  Mortgagee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner,  by way of security  and in order  to more fully  secure the
       performance of the Obligations under this  Mortgage, hereby irrevocably
       appoints the  Mortgagee as its attorney for the  duration of the Credit
       Facility Period for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in  its name all documents  which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on behalf  of  the  Mortgagee until  this
             Mortgage shall have  become immediately  enforceable pursuant  to
             Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of such  power as is referred to in Clause  12.01(a) by or
       on behalf of the  Mortgagee shall not put  any person dealing with  the
       Mortgagee upon  any enquiry  as  to whether  this  Mortgage has  become
       enforceable  nor shall  such person  be in  any way  affected by notice
       that  this Mortgage has not become enforceable and, in relation to both
       Clauses 12.01(a) and  12.01(b), the  exercise by the  Mortgagee of such
       power  shall be  conclusive evidence  as against  third parties  of its
       right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in  the  preservation  or  enforcement  of  the  rights   of  the
             Mortgagee under this Mortgage; or

       (c)   on  the release  of the  Rig from  the  security created  by this
             Mortgage,

       and  the Secured Creditors  and each such agent  or attorney may retain
       and pay  all sums in  respect of the  same out of  money received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by  a Secured Creditors or such agent  or attorney shall be recoverable
       on a full indemnity basis.

13.02  Without limiting the  foregoing Clause 13.01, the Owner  hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees, attorneys  and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'   fees   and  expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of them, by reason of  (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including wrongful death) or  property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement reached;  or  (d)  any  violation of  laws,
       orders, regulations, requirements or demands  of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If,  under any applicable law or  regulation, and whether pursuant to a
       judgment being made or  registered against the Owner or the liquidation
       of  the Owner  or  for  any  other  reason, any  payment  under  or  in
       connection  with the Subsidiary  Guaranty or this  Mortgage is  made or
       fails  to be  satisfied in  a currency  (the "payment  currency") other
       than the currency  in which such payment is due  under or in connection
       with this  Mortgage (the  "contractual currency"), then  to the  extent
       that  the amount of  such payment actually  received by  the Mortgagee,
       when converted into the contractual currency  at the rate of  exchange,
       falls short  of  the  amount  due under  or  in  connection  with  this
       Mortgage, the  Owner, as a separate  and independent  obligation, shall
       indemnify and hold  harmless the Mortgagee  against the amount  of such
       shortfall.  For the purposes of  this Clause 13.03, "rate of  exchange"
       means  the rate  at which  the Mortgagee is  able on  the date  of such
       payment (or,  if it is  not practicable for  the Mortgagee  to purchase
       the contractual currency with the payment currency  on the date of such
       payment, at the rate of  exchange as soon afterwards as is  practicable
       for the  Mortgagee to do so) to  purchase the contractual currency with
       the  payment currency and shall take into account any premium and other
       costs of exchange with respect thereto.

14.    EXPENSES

14.01  The Owner  shall pay to  any Secured Creditor  the Mortgagee on  demand
       all  costs, fees  and expenses,  including, but  not limited  to, legal
       fees and expenses and valuation fees and Taxes thereon incurred  by any
       Secured Creditor or  for which any  Secured Creditor may  become liable
       in connection with:

       (a)   the  negotiation,  preparation   and  execution  of   the  Credit
             Agreement,   the  Subsidiary   Guaranty  and   the  other  Credit
             Documents (or any of them); and/or

       (b)   the preserving  or  enforcing of,  or attempting  to preserve  or
             enforce,  any of  its  rights  under  the Credit  Agreement,  the
             Subsidiary Guaranty  or the  other Credit  Documents  (or any  of
             them).

14.02  The  Owner shall pay  to the  Mortgagee on demand  all costs,  fees and
       expenses (including, but not limited to,  legal fees and expenses)  and
       Taxes thereon incurred by any Secured Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms  of the Credit  Agreement, the  Subsidiary Guaranty  or the
             other Credit Documents (or any of  them) requested by the  Owner,
             necessary or  advisable under applicable  law or relating to  the
             syndication  of  the Credit  Facility,  or  initiated during  the
             occurrence and continuation of an Event of Default; and/or

       (b)   any consent or waiver  required from the Mortgagee in relation to
             the  Credit  Agreement, the  Subsidiary  Guaranty  and the  other
             Credit Documents (or any of them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties  and  Taxes  to  which  the  Credit  Agreement,  the  Subsidiary
       Guaranty and  the  other  Credit Documents  (or  any  of them)  may  be
       subject  or give  rise  and shall  indemnify  the  Mortgagee on  demand
       against any and all liabilities with  respect to or resulting from  any
       delay or omission  on the part of the  Owner to pay any such  duties or
       Taxes.

15.    COMMUNICATIONS

15.01  All notices required to be given to the Mortgagee shall be  made to the
       following address:

           Christiania Bank  og  Kreditkasse,  New York Branch
           11 West 42nd Street
           7th Floor
           New York, New York  10036
           Attention:  Loan Administration
           Telephone:  (212) 827-4800
           Telefax:    (212) 827-4888

       All other  notices  shall be  made to  the  addresses provided  for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall inure to the benefit of
       the Secured Creditors and their respective  transferees, successors and
       permitted assigns,  and references  in  this Mortgage  to  any of  them
       shall be construed accordingly.

16.02  The Owner  may not  assign or transfer  all or  any part of  its rights
       and/or obligations under this Mortgage.

16.03  Pursuant  to Section 12.04 of  the Credit Agreement,  each Bank has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations under the  Credit Agreement on the terms  therein provided.
       The  Mortgagee  shall  notify the  Owner  promptly  following any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The total amount of  this Mortgage is Three Hundred Million  US Dollars
       (US$300,000,000)  of  principal plus  interest,  fees,  commissions and
       performance of mortgage  covenants.  The  discharge amount is  the same
       as the total amount.

18.    WAIVER; AMENDMENT

18.01  None  of the  terms  and conditions  of this  Mortgage may  be changed,
       waived, modified or varied in any  manner whatsoever unless in  writing
       duly  signed by the Owner and the Mortgagee (with the consent of either
       the Required Banks or, to  the extent required by Section 12.12  of the
       Credit Agreement,  all of the Banks).   No amendment to  the Subsidiary
       Guaranty  which affects  the rights  and obligations  of the  Mortgagee
       hereunder  shall  be effective  without  the consent  of  the Mortgagee
       thereto.

19.    MISCELLANEOUS

19.01  This Mortgage shall be governed by the laws of the Republic of Panama.

19.02  If  at any time any one  or more of the  provisions in this Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability of  the
       remaining provisions of this Mortgage shall not be  in any way affected
       or impaired thereby.

19.03  The  Mortgagee, at  any time  and from  time to  time, may  delegate by
       power of attorney or in  any other manner to any person  or persons all
       or any  of the powers,  authorities and discretions  which are for  the
       time  being  exercisable  by  the  Mortgagee  under  this  Mortgage  in
       relation to the Rig.  Any such  delegation may be made upon such  terms
       and subject to such  regulations as the Mortgagee  may think fit.   The
       Mortgagee shall not be  in any way liable  or responsible to the  Owner
       for  any loss  or damage  arising from  any act,  default, omission  or
       misconduct on the part of any such delegate.

19.04  The  appearing parties  hereby confer  a special  power of  attorney on
       Benedetti & Benedetti,  lawyers of  Panama, Republic  of Panama  and/or
       any partners in  the firm authorizing such firm or  any such partner to
       take  all necessary  steps  to record  this  Indenture  of First  Naval
       Mortgage  in the appropriate  registries of the City  of Panama, and to
       substitute this Power of Attorney herein granted.

19.05  A  certification or  determination by  the Mortgagee  as to  any matter
       provided for in this Mortgage shall, in  the absence of manifest error,
       be conclusive and binding on the Owner.

19.06  The  Mortgagee  declares that  it  accepts  the  naval mortgage  hereby
       created under the terms above set forth.

20.    JURISDICTION

20.01  The Owner agrees  that the Mortgagee  shall have the liberty  but shall
       not be obliged  to take any proceedings in the courts of any country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose of  any proceedings for such enforcement the  Owner
       hereby submits to the jurisdiction of the courts of  any country of the
       choice of the Mortgagee.

20.02  Without prejudice  to the  generality  of Clause  20.01, the  Mortgagee
       shall  have the  right to  arrest and  take action  against the  Rig at
       whatever place the Rig shall be found lying and  for the purpose of any
       action  which the  Mortgagee  may  bring  before  the  courts  of  such
       jurisdiction  or other judicial  authority and for  the purpose  of any
       action  which  the  Mortgagee may  bring  against  the  Rig,  any writ,
       notice,  judgment  or other  legal  process or  documents  may (without
       prejudice to  any other  method  of service  under  applicable law)  be
       served upon  the  master of  the  Rig (or  upon  anyone acting  as  the
       master) and such service shall be deemed good service  on the Owner for
       all purposes.

20.03  The  Owner agrees that  should the  Mortgagee bring  a legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out  of or in connection  with this Mortgage, no  immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without  limitation,   suit,  attachment   prior  to   judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be  claimed by or on  behalf of the Owner or  with respect of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the  Owner hereby consents generally in  respect of any legal action or
       proceedings arising out  of or in connection with  this Mortgage to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be made or given  in such
       action or proceedings.

IN WITNESS   whereof  the Owner  and the  Mortgagee have  duly executed  these
presents the day and year first before written.

READING AND BATES BORNEO DRILLING CO., LTD.


By:  _____________________________________
      Name:  T.W. Nagle
      Title: Vice President and Treasurer


CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH


By:  _____________________________________
      Name:
      Title:


By:   ______________________________________
      Name:
      Title:


                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )    ss:
COUNTY OF NEW YORK       )


                   On this  13th day  of November, 1996,  before me personally
appeared Timothy W.  Nagle, to me known  and who resides at 13307  Tosca Lane,
Houston, TX; and who  submitted evidence to me that he is a Vice President and
Treasurer  of  READING AND  BATES  BORNEO  DRILLING  CO.,  LTD.,  the  company
described in and which executed the foregoing mortgage; and that he signed his
name thereto pursuant to authority granted to him by the Board of Directors of
said corporation.




___________________________________
Notary Public




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )    ss:
COUNTY OF NEW YORK       )


                   On this 13th day  of November,  1996, before me  personally
appeared  Han Chr.  Kjelsrud to  me known  and who  resides  at 115  East 87th
Street, New York,  NY; and who  submitted evidence to me  that he/she is  Vice
President of CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH, the corporation
described in and which executed the foregoing mortgage; and that he/she signed
his/her name thereto pursuant to authority granted to him/her by the  Board of
Directors of said corporation.



____________________________________
Notary Public




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )    ss:
COUNTY OF NEW YORK       )


                   On this 13th day  of November,  1996, before me  personally
appeared Justin  McCarty,  III to  me known  and who  resides  at 35  Pleasant
Street, Katonah,  NY; and  who submitted evidence  to me  that he/she  is Vice
President of CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH, the corporation
described in and which executed the foregoing mortgage; and that he/she signed
his/her name thereto pursuant to authority granted to him/her by the  Board of
Directors of said corporation.


____________________________________
Notary Public


                                                                Exhibit 10.130


                       INDENTURE OF FIRST NAVAL MORTGAGE

                         READING & BATES DRILLING CO.

                                    - and -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
             administrative agent, arranger and security trustee,

                                 as Mortgagee

                                 J. W. McLEAN

                            Dated November 13, 1996

============================================================================

                                     INDEX


CLAUSE      SUBJECT MATTER                                                PAGE

  1         REPRESENTATIONS AND COVENANTS . . . . . . . . . . . . . . . . . 2 
  2         DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 4 
  3         MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
  4         PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . .  10 
  5         PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
  6         INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
  7         RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
  8         PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
  9         ENFORCEABILITY AND MORTGAGEE'S POWERS . . . . . . . . . . . .  19 
  10        APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
  11        FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  22 
  12        POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
  13        INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  23 
  14        EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  24 
  15        COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
  16        ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  25 
  17        TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
  18        WAIVER; AMENDMENT . . . . . . . . . . . . . . . . . . . . . .  25 
  19        MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
  20        JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  26 

EXHIBIT 1   FORM OF CREDIT AGREEMENT

==============================================================================

       THIS INDENTURE OF FIRST NAVAL MORTGAGE made and entered into this  13th
day of  November, 1996,  between READING  &  BATES DRILLING  CO., an  Oklahoma
corporation duly constituted and existing in  conformity with the laws of  the
State of  Oklahoma with its principal  office at 901 Threadneedle,  Suite 200,
Houston,  Texas 77079 (hereinafter called the "Owner") and CHRISTIANIA BANK OG
KREDITKASSE, NEW  YORK BRANCH having  its office at  11 West 42nd  Street, New
York, NY 10036,  as agent for the Banks  (as hereinafter defined) (hereinafter
called the  "Mortgagee"), on the Panamanian offshore drilling rig J. W. McLEAN
of 15,453 gross  registered tons, 4,636 net registered tons  and with a length
of 111.86m, a breadth of 64.01m  and a depth of 42.67m and  Provisional Patent
of  Navigation No. 25384-PEXT (hereinafter  called the "Rig"), duly registered
under the laws and flag of the Republic of Panama, the detailed description of
which is hereinafter more particularly set forth.

                             W I T N E S S E T H :

WHEREAS

(A)    The  Owner  is the  sole  owner of  the  whole of  the semi-submersible
       drilling rig J. W.  McLEAN documented  under the laws  and flag of  the
       Republic of Panama.

(B)    By a  Credit Agreement  dated  as of  November 13,  1996 (as  modified,
       amended or  supplemented from  time to  time,  the "Credit  Agreement")
       among  (i) Reading  &  Bates Corporation,  a  Delaware corporation,  as
       guarantor  ("Holdings"), (ii)  the Owner, as  borrower, (iii) the banks
       party thereto (the "Banks"), (iv)  Credit Lyonnais New York  Branch and
       Banque Indosuez, as  documentation agents (the "Documentation  Agents")
       and  (v) the Mortgagee, as administrative  agent, arranger and security
       trustee (in  such capacity,  the "Administrative  Agent") (the form  of
       which Credit Agreement  together with the  form of  promissory note  of
       the  Owner attached  as  Exhibit B  thereto  but without  the remaining
       exhibits  is attached hereto  as Exhibit 1); it  was agreed among other
       things that  the Banks  would make  available to  the Owner  a reducing
       revolving credit  facility (the  "Facility") in  the maximum  aggregate
       principal amount at any one  time outstanding of Three  Hundred Million
       United States Dollars  (U.S.$300,000,000), providing for the  making of
       Loans and the  issuance of and participations  in Letters of Credit  as
       contemplated therein.   As required  by Article 1515  Section 3 of  the
       Commercial  Code of Panama, the dates on which payments of principal in
       respect of  the Loans are due may be  determined from the provisions of
       the Credit Agreement including Section 4.

(C)    The  obligations  of  the  Owner  with  respect  to  the  Facility  are
       evidenced  by the  Credit  Agreement and  the  other Credit  Documents,
       including the promissory  notes of the  Owner payable  to the order  of
       the  respective Banks (each  a "Note"  and, collectively,  the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    This Mortgage is  made for the benefit  of the Mortgagee to  secure (i)
       the  full and  prompt payment  when due  of  (x) the  principal of  and
       interest on  the  Notes  issued,  and  Loans  made,  under  the  Credit
       Agreement, and all  reimbursement obligations and Unpaid  Drawings with
       respect to the Letters  of Credit issued under the Credit Agreement and
       (y)  all   other  obligations  and   indebtedness  (including,  without
       limitation,  indemnities, Fees and  interest thereon)  of the  Owner to
       the Secured  Creditors (as hereinafter  defined), whether now  existing
       or hereafter incurred under,  arising out of or in  connection with the
       Credit  Agreement and  the other  Credit  Documents including,  without
       limitation, this Mortgage  and the  due performance  and compliance  by
       the Owner  with all of  the terms, conditions  and agreements contained
       in  the  Credit Agreement  and  the other  Credit  Documents including,
       without limitation,  this Mortgage; (ii)  any and all  sums advanced by
       the  Mortgagee in order to  preserve the Collateral  (as defined in the
       Credit  Agreement) or preserve its security interest in the Collateral;
       (iii) in the event of any proceeding  for the collection or enforcement
       of any indebtedness, obligations, or liabilities  of the Owner referred
       to in  clause (i) above, after an Event  of Default shall have occurred
       and be  continuing, the  reasonable expenses  of the  Mortgagee of  re-
       taking,  holding, preparing  for sale  or  lease, selling  or otherwise
       disposing of or realizing on the Collateral, or of any exercise by  the
       Mortgagee of its rights hereunder,  together with reasonable attorneys'
       fees of counsel to  the Mortgagee and court costs; and (iv) all amounts
       paid by any Indemnitee  as to  which such Indemnitee  has the right  to
       reimbursement under Clause 13 of  this Mortgage (all such  obligations,
       liabilities, sums and  expenses referred to in clauses (i) through (iv)
       above being  collectively referred  to as  the "Obligations").   It  is
       acknowledged  and   agreed  that   the   "Obligations"  shall   include
       extensions of  credit of the types described above, whether outstanding
       on the date of this  Mortgage or extended from  time to time after  the
       date of this Mortgage.

(E)    This Indenture  of First Naval Mortgage,  which is entered into  by the
       Owner in consideration  of the Banks entering into the Credit Agreement
       and agreeing  to make  the Facility  available to  the Owner  and as  a
       condition  thereto  and  for  other  good  and  valuable  consideration
       provided by  the  Banks (the  sufficiency  of  which the  Owner  hereby
       acknowledges).

NOW,  THEREFORE, the appearing parties, each in the  name and on behalf of his
respective principal, state that  they hereby execute this Indenture  of First
Naval Mortgage pursuant to the following representations:

1.     REPRESENTATIONS AND COVENANTS

1.01   The Owner represents and covenants to the Mortgagee that:

       a.    The Owner is the  sole and  absolute owner of  the Rig under  the
             laws and the flag of the Republic of Panama; 

       b.    The Owner,  as sole legal  and beneficial owner  of the Rig,  has
             received  and  presently   possesses  a  Provisional  Patent   of
             Navigation for the  Rig, duly issued  by the  Republic of  Panama
             under No. 25384-PEXT; 

       c.    Neither the whole  nor any  share in the  Rig is  subject to  any
             Security  Interest  (as defined  herein)  (except  for  Permitted
             Liens (as defined herein) and the lien of this Mortgage);

       d.    the  Owner has  not sold  or transferred,  or  agreed to  sell or
             transfer, title to the Rig or any share therein;

       e.    the Owner is  a corporation duly organized  and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       f.    the  Owner  has full  power  and  authority  (i)  to execute  and
             deliver this Mortgage, (ii) to  mortgage the Rig as  security for
             the Obligations and (iii) to  comply with the provisions  of, and
             perform all its obligations under, this Mortgage;

       g.    the  Owner has  complied with  all  statutory and  other material
             requirements  relative   to  the   ownership,  registration   and
             operation of the Rig;

       h.    the  Owner  has  taken  all  necessary  action  to authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the legal,  valid  and  binding obligation  of  the
             Owner enforceable against the Owner in accordance  with its terms
             (except   to  the  extent   limited  by   applicable  bankruptcy,
             reorganization, insolvency, moratorium  or other laws of  general
             application  relating   to  or  affecting   the  enforcement   of
             creditors' rights  as from  time to  time in  effect and  general
             equitable principles)  and when  preliminarily recorded with  the
             Public Registry  in Panama  through the  Panamanian Consulate  in
             New York, New  York will create  a legal,  valid and  enforceable
             first  priority mortgage  lien  on the  Rig  subject only  to the
             permanent  filing  of this  Mortgage  in the  Public  Registry in
             Panama within six  months of the date of the preliminary recorded
             filing;

       i.    the entry  into and  performance by  the Owner  of this  Mortgage
             does  not and  will  not during  the  Credit Facility  Period (as
             defined herein) violate  in any respect (i) any law or regulation
             of any  governmental or official  authority or body,  or (ii) any
             of  the  constitutive  documents  of   the  Owner  including  the
             Certificate of Incorporation or By-laws, as amended  from time to
             time,  or  (iii)  any  material   agreement,  contract  or  other
             undertaking to which  the Owner is  a party  or which is  binding
             upon the Owner or any of its assets;

       j.    all consents, licenses, approvals and  authorizations required in
             connection   with  the  entry  into,  performance,  validity  and
             enforceability   of   this   Mortgage   and   the    transactions
             contemplated  hereby and  thereby have  been obtained  and are in
             full force  and  effect and  will  be  so maintained  during  the
             Credit Facility Period;

       k.    save for such  registrations and filings  as are  referred to  in
             this Mortgage,  it is  not necessary for  the legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that it  or any document relating  thereto be  registered, filed,
             recorded or enrolled  with any court or authority in any relevant
             jurisdiction or that any stamp, registration or  similar taxes be
             paid on or in relation to this Mortgage;

       l.    the  Owner is  in compliance  with  all applicable  Environmental
             Laws  (as defined  herein) and  all  Environmental Approvals  (as
             defined  herein)   relating  to  the   Rig,  its  operation   and
             management and  the business of  the Owner (as  now conducted and
             as  reasonably anticipated  to be conducted  in the  future) have
             been obtained or complied with;

       m.    no  Environmental Claim  (as  defined herein)  has  been made  or
             threatened against  the Owner or otherwise in connection with the
             Rig;

       n.    no  Environmental   Incident  (as  defined   herein)  which   has
             resulted, or which  could reasonably be expected to result, in an
             Environmental Claim in excess of US$200,000 has occurred; and

       o.    The  Owner  hereby  affirms as  its  representations  all of  the
             statements contained in the "WHEREAS" clauses of this Mortgage.

1.02   The representations and  warranties of the Owner set out in Clause 1.01
       shall survive the execution of this Mortgage and  shall be deemed to be
       repeated  at the time  of the making of  each Loan  (as defined herein)
       and at the time  of the issuance of each Letter of Credit, with respect
       to the facts and  circumstances existing at each such time,  as if made
       at each such time.

1.03   The  Mortgagee  represents  that  the  Banks  have  made  the  Facility
       available  to  the Owner,  as  evidenced  by,  inter  alia, the  Credit
       Agreement, the Notes  and the Security Documents  (as defined  herein),
       and accepts  the Mortgage constituted  by this instrument  upon the Rig
       as  security for  the due  and  prompt payment  and performance  of the
       obligations  of the  Owner  under the  Credit  Agreement and  the other
       Credit Documents.

1.04   Each of the contracting parties declares that it is  satisfied with the
       representations and covenants  made by the  other and  accepts them  as
       true;  and the  parties  mutually  acknowledge their  respective  legal
       status as  well  as the  authority  of  the persons  representing  them
       respectively in  this instrument to  sign the  same on behalf  of their
       respective principals.

2.     DEFINITIONS AND INTERPRETATION

2.01   In this Mortgage unless  the context otherwise requires,  the following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank" means  any lender listed  from time  to time on  Annex I to  the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the  same meaning for such term as set forth in
       the Credit Agreement; 

       "Commitment" shall have the  same meaning for such term as set forth in
       the Credit Agreement;

       "Credit Agreement"  means the  Credit Agreement,  dated as of  November
       13,  1996,  among Holdings,  the  Owner, the  Banks,  the Documentation
       Agents, and the  Administrative Agent, first referred to in Recital (B)
       hereto, as modified, amended or supplemented from time to time;

       "Credit Documents"  shall have the meaning  for such term as  set forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no  Letters  of  Credit  remain outstanding  and  the  Unpaid  Drawings
       together with  interest, fees  and all  other obligations  are paid  in
       full;

       "Default  Rate"  shall   mean  the  rate  of  interest   calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions or  authorization  required under  applicable  Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance  or  violation,  investigations (other  than
       internal  reports  prepared  by  Holdings or  any  of  its Subsidiaries
       solely in the ordinary  course of  business of such  entity and not  in
       response  to  any third  party  action  or  request  of  any  kind)  or
       proceedings relating in any way to any  Environmental Law or any permit
       issued,  or  any  approval  given, under  any  such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental  or  regulatory  authorities for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims    by   any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any release  of  Environmentally
       Sensitive  Material   from  the  Rig,   (ii)  any  incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than  the Rig  and which  involves collision  between the Rig  and such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or  otherwise liable (in whole or in  part) or (iii) any incident
       in which  Environmentally Sensitive Material is  released from a vessel
       other than the Rig  and where the Rig is actually or potentially liable
       to be  arrested as  a  result and/or  where the  Owner is  actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking, leaching,  dumping,  emitting,  escaping,  emptying,  seeping,
       placing  and  the like,  into or  upon  any land  or water  or  air, or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule  of common law now or hereafter  in effect and in each case as
       amended,  and  any judicial  or administrative  interpretation thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials,  including, without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act,  as amended, 33 U.S.C.  1251 et seq.; the
       Toxic Substances  Control Act, 15 U.S.C.  7401  et seq.; the Clean Air
       Act, 42 U.S.C.  7401 et seq.;  the Safe Drinking Water Act, 42  U.S.C.
        3808  et seq.; the  Oil Pollution Act  of 1990,  33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees" shall  have the same meaning for  such term as set  forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable,  urea  formaldehyde  foam  insulation, transformers  or  other
       equipment  that   contained,  electric   fluid  containing  levels   of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous  waste," "restricted  hazardous  waste," "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar  import, under  any applicable  Environmental Law;  and (c) any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect of the  Rig or otherwise by the Owner  (whether
       in the sole name  of the Owner or in the  joint names of the Owner  and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest  Period" shall  have the same  meaning for  such term  as set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of  Credit" shall have  the same meaning  for such term as  set
       forth in Section 2.01(a) of the Credit Agreement;

       "Loan(s)" shall  have the same  meaning for such  term as set forth  in
       the Credit Agreement;

       "Major Casualty" means  any casualty to the Rig  in respect whereof the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note" means each promissory  note of the Owner referred  to in Recital
       (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (D) hereto;

       "Oil Pollution Act 1990" means the Oil Pollution Act 1990 (33 U.S.C.  
       2701 et seq.), as amended;

       "Other  Rigs"  means, individually  or  collectively, each  of  (i) the
       semi-submersible drilling rig JACK BATES owned by the Owner  documented
       under the laws and flag of  the United States of America with  Official
       Number 906283  of   19,928  gross  registered   tons  and  14,948   net
       registered tons; (ii) the jack-up drilling  rig D. R. STEWART owned  by
       Reading &  Bates Exploration Co.  ("R&B Exploration") documented  under
       the laws and flag of the United States of America with Official  Number
       626904 of  6,494 gross registered  tons and 5,834  net registered tons;
       (iii) the offshore  drilling rig W.  D. KENT owned  by R&B  Exploration
       documented under  the laws  and flag  of the  United States of  America
       with Official  Number 583169 of  5,383 gross registered  tons and 4,185
       net registered tons;  (iv) the jack-up drilling rig RON TAPPMEYER owned
       by Reading & Bates  (A) Pty Ltd. documented under the laws  and flag of
       Australia with Official  Number 855213 of 11,455 gross  registered tons
       and 3,436  net registered  tons; (v) the  semi-submersible drilling rig
       RIG 41 owned  by the Owner documented  under the laws  and flag of  the
       Republic of Panama with  the Patente Number to be assigned  on the date
       hereof of 10,078 gross registered  tons and 3,024 net  registered tons;
       (vi) the  offshore drilling  rig CHARLEY  GRAVES owned  by Reading  and
       Bates Borneo Drilling  Co., Ltd. documented under the  laws and flag of
       the  Republic of Panama with  Patente Number 6618-76  CH of 5,829 gross
       registered tons  and  1,748  net registered  tons;  (vii)  the  jack-up
       drilling rig HARVEY  H. WARD owned  by HRB  Rig Corporation  documented
       under the laws and flag of  the United States of America with  Official
       Number 642693 of 4,121 gross  registered tons and 3,079  net registered
       tons;  (viii)  the jack-up  drilling  rig  F.  G.  McCLINTOCK owned  by
       Reading &  Bates Offshore, Limited  documented under the  laws and flag
       of the United  States of America with  Official Number 562059 of  5,525
       gross registered tons and 1,657  net registered tons; (ix)  the jack-up
       drilling rig  RANDOLPH YOST  owned by  the Owner  documented under  the
       laws and  flag of the  United States  of America  with Official  Number
       601699 of  4,701 gross registered  tons and 4,701  registered tons; (x)
       the jack-up  drilling rig  J. T.  ANGEL owned by  the Owner  documented
       under the laws and  flag of the United States of  America with Official
       Number 651645 of 4,186 gross  registered tons and 3,090  net registered
       tons; (xi) the jack-up drilling rig ROGER W. MOWELL owned by the  Owner
       documented  under the  laws and flag  of the  United States  of America
       with Official  Number 645360 of  4,121 gross registered  tons and 3,079
       net registered tons;  (xii) the jack-up drilling rig GEORGE H. GALLOWAY
       owned by  Reading & Bates  Offshore, Limited documented  under the laws
       and flag of the  United States of  America with Official Number  651646
       of  3,729 gross  registered  tons and  2,496  net registered  tons; and
       (xiii)  the jack-up drilling rig C. E. THORNTON  to be owned by HRB Rig
       Corporation documented under the laws and flag  of the United States of
       America with Official  Number 673210 of 6,096 gross registered tons and
       6,096 net registered tons;

       "Permitted Liens"  means: (1)  liens  incident to  expenses of  current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days (or being contested in good  faith, provided
       such liens  are not in  excess of  U.S.$5,000,000.00, and if  in excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative Agent, provide a  bond or other security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable;  (3) liens  for taxes,  assessments, governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested in  good faith,  provided such  liens  are not  in excess  of
       U.S.$5,000,000.00,  and if  in excess  thereof, then  the Owner  shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security satisfactory to the Administrative Agent); (4)  liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements of  Clause 6 hereof (except  that no lien  shall be deemed
       not covered  by insurance to the extent insurance  in force would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant  to any judgment  or to  an order of  attachment, distraint or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the payment  or  discharge  of which  provisions  satisfactory  to  the
       Administrative Agent have been made as  evidenced by the Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to the lien of this Mortgage  or (ii) constitute a maritime
       lien which would in any event be entitled as such to priority  over the
       Mortgage  under the  United  States shipping  laws or  other applicable
       laws  relating to the Rig's  trading pattern.   Nothing herein shall be
       deemed  a  waiver  of  the  priority  preferred  lien  status  of  this
       Mortgage;

       "Protection  and  indemnity risks"  means  the usual  risks  covered by
       protection   and  indemnity   associations   of  international   repute
       including the  proportion not  recoverable in case  of collision  under
       the ordinary running-down clause (unless such  is recoverable under the
       relevant hull and machinery coverage);

       "Required Banks" shall have  the meaning for such term as  set forth in
       the Credit Agreement;

       "Requisition  Compensation"  means  all moneys  or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means the  vessel described in  Recital (A)  hereto and  includes
       any  share  or  interest therein  and  her  engines,  machinery, boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings  and appurtenances  whether on  board or  ashore and whether
       now owned or  hereafter acquired  (but excluding  therefrom any  leased
       equipment owned by third parties);

       "Secured Creditors" shall mean the  Banks, the Letter of  Credit Issuer
       and  the  Administrative Agent  under  and  as  defined  in the  Credit
       Agreement;

       "Security Documents" shall have the  same meaning for such term as  set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge,  lien, hypothecation, assignment, trust arrangement,
       title retention or other security  interest or arrangement of  any kind
       whatsoever;

       "Taxes" shall have the same  meaning for such term as set  forth in the
       Credit Agreement;

       "Total  Commitment" shall  have the same  meaning for such  term as set
       forth in the Credit Agreement;

       "Total Loss" means  (a) the actual, constructive, arranged,  agreed, or
       compromised total loss  of the Rig;  (b) the requisition  for title  or
       other compulsory acquisition or  forfeiture of  the Rig otherwise  than
       by requisition  for hire; (c) the  capture, seizure,  arrest, detention
       or confiscation of  the Rig by any  government or by persons  acting or
       purporting to  act  on behalf  of  any  government unless  the  Rig  be
       released from such capture, seizure, arrest or detention within  ninety
       (90) days after the occurrence thereof;

       "United States  Dollars" and  "US$" means  the lawful  currency of  the
       United States of America;

       "Unpaid  Drawing" shall  have the  same meaning  for such  term  as set
       forth in the Credit Agreement;

       "War Risks" includes the risk of mines and  all risks excluded from the
       standard form  of English  marine policy  by  the free  of capture  and
       seizure clause.

2.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall bear the same meanings when used in this Mortgage.

2.03   In this Mortgage:

       (a)   Clause headings are  inserted for convenience only and  shall not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified,  all  references to  Clauses  are to  clauses  of this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references    to   persons    include   bodies    corporate   and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to  any enactment  include  re-enactments, amendments
             and extensions thereof.

3.     MORTGAGE

3.01   In order to secure the Obligations the  Owner has granted, conveyed and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the  Mortgagee, its  successors  and assigns,  in  accordance with  the
       provisions of  Chapter  V, Title  IV  of Book  Second  of the  Code  of
       Commerce  and  pertinent  provisions   of  the  Civil  Code  and  other
       legislation  of the  Republic  of Panama,  the  whole of  the  Rig, the
       detailed description of which is as follows:

             offshore drilling rig J.  W. McLEAN; gross tonnage  approximately
             15,453; net  tonnage approximately  4,636; length overall  111.86
             meters, breadth 64.01 meters;  depth 42.67 meters; built in  1974
             by  Bethlehem Steel  Corporation in  Beaumont, Texas;  radio call
             letters HP-8713;

       TO HAVE  AND TO HOLD  the same unto the  Mortgagee, its  successors and
       assigns forever, upon  the terms herein  set forth for  the enforcement
       of the Obligations.

       PROVIDED ONLY and  the condition of these presents is  such that if the
       Owner  or its successors and assigns shall pay or cause to be repaid to
       the Secured Creditors  and their  respective successors or  assigns the
       Obligations as  and  when the  same  shall become  due  and payable  in
       accordance  with the terms  of the Credit  Agreement and  this Mortgage
       and the Owner and its  successors and assigns shall observe and  comply
       with  the  covenants,  terms  and conditions  contained  in  the Credit
       Agreement and  this Mortgage,  expressed  or implied  to be  performed,
       observed  or complied  with by  and on  the part  of the Owner  and its
       successors  and assigns, then these  presents and  the rights hereunder
       shall cease, determine  and be void and,  in such event,  the Mortgagee
       agrees to  furnish, execute and  record, at the  expense of the  Owner,
       all such documents  as the Owner may   reasonably require to  discharge
       this Mortgage, otherwise to be and remain in full force and effect.

       Notwithstanding  anything to  the contrary  herein it  is not  intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of  this Mortgage  and that  if any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by  it in relation to  the Rig and none of  the Secured Creditors shall
       be under any  obligation of any kind  whatsoever in respect thereof  or
       be  under any liability whatsoever in event of any failure by the Owner
       to perform its obligations in respect thereof.

3.03   This Mortgage,  when it  shall have been  duly executed  and signed  on
       behalf  of the  parties, shall  be provisionally  recorded  through the
       Panamanian Consulate at New  York, New York and thereafter within three
       months permanently recorded in the Public Registry in Panama.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to  pay   and  indemnify  the  Secured  Creditors  for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or  other moneys  as are stated  in this  Mortgage to  be
             payable by  the Owner  to or  recoverable from the  Owner by  the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses, costs,  duties, fees, charges or other moneys referred to
             in Clause 4.01(a) from  the date on which  the relevant  expense,
             claim, liability,  loss, cost, duty,  fee, charge or other  money
             is  paid by  any  Secured Creditor  (both  before  and after  any
             relevant judgment) at the Default Rate; and

       (c)   to  pay and perform its obligations which may be or become due or
             owing  to any Secured  Creditor, as  the case may  be, under this
             Mortgage and  the Credit Agreement at the times and in the manner
             specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Mortgagee as  a continuing  security for the  performance of  the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the  security so created shall be in addition to and shall not in
             any way be prejudiced  or affected by any  of the other  Security
             Documents;

       (c)   the  Mortgagee  shall not  have  to wait  for  the Administrative
             Agent  to enforce  any  of the  other  Security Documents  before
             enforcing the security created by this Mortgage;

       (d)   no failure or  delay on the part  of the Mortgagee in  exercising
             any right, power, privilege  or remedy hereunder and no course of
             dealing between Owner and  Mortgagee or the Administrative  Agent
             shall  operate as  a  waiver thereof;  nor  shall  any single  or
             partial  exercise  of  any  right,  power,  privilege  or  remedy
             hereunder  preclude any other or further  exercise thereof or the
             exercise of any other right, power  or privilege hereunder.   The
             rights and remedies herein expressly provided  are cumulative and
             not exclusive of  any rights or  remedies which the  Mortgagee or
             the Administrative Agent would otherwise have.   No notice to  or
             demand on the Owner  in any case shall  entitle the Owner to  any
             other   or  further   notice  or  demand   in  similar  or  other
             circumstances  or  constitute  a  waiver  of  the rights  of  the
             Mortgagee or  the Administrative Agent  to any  other or  further
             action in any circumstances without notice or demand; and

       (e)   any  waiver by the Mortgagee of any terms of this Mortgage or any
             consent given by the  Mortgagee under this Mortgage shall only be
             effective if given  in writing and then only  for the purpose and
             upon the terms for which it is given.

5.02   Any settlement  or discharge under this  Mortgage between the Mortgagee
       and the Owner  shall be conditional upon no security  or payment to the
       Secured  Parties or  any of  them by  the Credit  Parties or  any other
       person  being avoided or set-aside or ordered to be refunded or reduced
       by  virtue  of  any  provision  or enactment  relating  to  bankruptcy,
       insolvency, administration or  liquidation for the time  being in force
       and,  if  such  condition is  not  satisfied,  the  Mortgagee  shall be
       entitled  to  recover  from  the Owner  on  demand  the  value of  such
       security  or the  amount of any  such payment as  if such settlement or
       discharge had not occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby  constituted  shall  not  be   affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to impair, affect or  discharge such rights  and security, in whole  or
       in part, including without limitation, and  whether or not known to  or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:

       (a)   any waiver granted to or composition  with the Credit Parties  or
             any other person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit  Parties or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents or any other document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or  frustration   of   any
             obligations  of the Credit  Party or any  other person  under the
             Credit Agreement, any of  the other Credit Documents or any other
             document or security.

6.     INSURANCE

6.01   The Owner covenants  with the Mortgagee throughout the  Credit Facility
       Period that:

       (a)   The  Owner shall, at  its own  expense, when and  so long  as any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured, or cause the Rig  to be insured, in lawful money  of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             Protection  and  Indemnity Risks,  pollution  liability, and  War
             Risks), in such  form (including without limitation, the  form of
             the loss  payable clause  and the designation  of named assureds)
             and  with such  first  class insurance  companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect   to  hull   and  machinery/increased   value  insurance,
             including war risk, the Owner  shall insure the Rig and  keep her
             insured, or cause  the Rig to be insured, for  an amount which is
             at  least the  agreed value of  the Rig, and  when such amount is
             aggregated with  the total amount  of such insurance coverage  on
             the Other  Rigs, such aggregate amount shall  be at least 110% of
             the  aggregate amount of  the Total  Commitment.   Such insurance
             shall cover marine  and war risk  perils, on hull  and machinery,
             with  per  occurrence deductibles  not  in  excess of  US$500,000
             (such deductibles not to apply  in the case of Total Loss  of the
             Rig), and shall be  maintained in the broadest forms available in
             the  American, British  and Scandinavian insurance  markets or in
             such   other  major  international   markets  acceptable  to  the
             Mortgagee.   The  Owner shall  maintain protection  and indemnity
             insurance, including  war risk protection  and indemnity coverage
             and coverage against pollution  liability, in an amount not  less
             than  US$100,000,000 (or,  with  respect  to pollution  liability
             coverage, such greater amount as may be at least  equal from time
             to time to the limitation of  liability amount applicable to  the
             Rig  under the  Oil  Pollution Act  1990  or other  Environmental
             Laws),  through underwriters  or associations  acceptable to  the
             Mortgagee.   In addition,  the Owner shall,  at its  own expense,
             furnish  to   the  Administrative  Agent  a   mortgagee's  single
             interest  policy providing coverage  which, when  aggregated with
             the   mortgagee's   interest    insurance   furnished   to    the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an amount equal  to at least 110% of the  Total Commitment (or in
             lieu  of such  mortgagee's interest  insurance Owner  shall cause
             the hull and machinery/increased  value insurance to be  endorsed
             to  afford breach  of warranty  coverage for  the benefit  of the
             Administrative Agent).   Such mortgagee's interest  insurance and
             any  additional  insurance  policies  for  the   benefit  of  the
             Administrative  Agent shall  be maintained  in the  broadest form
             available  in the  American, British and  Scandinavian markets or
             other   major    international   markets   acceptable    to   the
             Administrative  Agent  through  underwriters  acceptable  to  the
             Administrative Agent.   The Rig shall  not operate in  or proceed
             into  any area  then  excluded by  trading  warranties under  its
             marine or war risk policies (including  protection and indemnity)
             without  satisfying  the  conditions  of  the  relevant  policies
             evidence of which shall be furnished to the Mortgagee.

       (b)   The  policy  or  policies   of  insurance  shall  be  issued   by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and   insuring  covenants   satisfactory   to  the
             Administrative Agent, and shall  be kept in full force and effect
             by the  Owner so long as  the Security Documents  and the Secured
             Indebtedness  shall be  outstanding.  All  such policies, binders
             and  other  interim insurance  contracts  shall  be executed  and
             issued  in  the  name  of the  Owner  and  shall,  to the  extent
             required  herein, provide  that the  Mortgagee shall  be the loss
             payee for distribution by it  to itself, the Banks and  the Owner
             as  their interests may  appear, and shall  provide for  at least
             ten  days' prior  notice to  be  given to  the  Mortgagee by  the
             underwriters or association  in the event of cancellation  or the
             failure  of the  Owner  to pay  any premium  or call  which would
             suspend coverage  under the  policy  or the  payment  of a  claim
             thereunder.   The Mortgagee and the  Banks shall be  named as co-
             assureds  on  all  such  policies and  insurance  contracts,  but
             without liability of the  Mortgagee, or the Banks for premiums or
             calls.  Complete  certified copies of all such  policies, binders
             and  other interim insurance contracts  shall be delivered to the
             Mortgagee.  Originals shall  also be provided upon the request of
             the  Mortgagee.    The  Owner  shall  furnish  to  the  Mortgagee
             annually a detailed report signed by  a firm of marine  insurance
             brokers  satisfactory  to  the  Mortgagee  as  to  the  insurance
             maintained  in respect of the Rig, as  to their opinion as to the
             adequacy  thereof and  as to  compliance  with the  provisions of
             this Clause 6.01.

             Unless otherwise  required  by the  Mortgagee, by  notice to  the
             underwriters, although the following insurance is  payable to the
             Mortgagee, (i)  any loss  under  any insurance  on  the Rig  with
             respect to  Protection and Indemnity  Risks may be paid  directly
             to the Owner  to reimburse  it for  any loss,  damage or  expense
             incurred by it and covered  by such insurance or to the person to
             whom  any liability covered by  such insurance  has been incurred
             and  (ii) in the case  of any loss (other  than a loss covered by
             (i) above  or by  the  next following  paragraph  of this  Clause
             6.01(b)) under  any insurance  with respect to  the Rig involving
             any damage  to the Rig, the underwriters may pay directly for the
             repair, salvage or other  charges involved or, if the Owner shall
             have first  fully repaired  the  damage or  paid  the salvage  or
             other  charges,  may pay  the  Owner  as reimbursement  therefor;
             provided,  however,  that  if  such  damage   involves  a  before
             deductible  loss in  excess of US$1,000,000.00  (One Million U.S.
             Dollars),  the underwriters  shall not make  such payment without
             first  obtaining  the written  consent thereto  of  the Mortgagee
             (which consent  shall not  be unreasonably  withheld).   Any loss
             covered  by this  paragraph which  is paid  to the  Mortgagee but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by the Mortgagee to, or  as directed by, the Owner and  all other
             payments to the  Mortgagee of  losses covered  by this  paragraph
             shall be  applied  by the  Mortgagee  in accordance  with  Clause
             10.01.

             In  the event of  a Total Loss,  all insurance  payments therefor
             shall be paid to the  Mortgagee.  The Owner shall not  declare or
             agree with the underwriters that the Rig  is a Total Loss without
             the prior written consent of the Mortgagee.

       (c)   In  the event of  a Total  Loss of the  Rig, the  Mortgagee shall
             retain out of the  insurance payments received on account of such
             loss  any  sum or  sums  that shall  be  or become  owing  to the
             Secured  Creditors under  the Security Documents,  whether or not
             the  same shall be  then due and  payable, together  with accrued
             interest and the cost, if any,  of collecting the insurance,  and
             pay the balance as provided in Clause 10.

       (d)   The Owner  shall comply with and satisfy all of the provisions of
             any applicable  law, regulation, proclamation or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will maintain, or  cause to  be maintained, all  certificates
             or other evidence  of financial responsibility as may be required
             by any such  law, regulation, proclamation or order  with respect
             to the trade in which the Rig from time to time is engaged.

       (e)   The  Owner shall renew all such  insurances as they expire and so
             as  to  insure  that  there  is  no  gap  in coverage,  keep  the
             Mortgagee advised  of the  progress of  such renewals, and  shall
             provide evidence of such renewal in  writing to the Mortgagee  as
             and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or  other  sums payable  in  respect  of all  such
             insurances and produce all relevant receipts when so required  by
             the Mortgagee.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner shall  not employ  the  Rig or  suffer the  Rig to  be
             employed  otherwise  than in  conformity  with the  terms  of the
             instruments   of  insurance   aforesaid  relative   to  the   Rig
             (including any  warranties, express or  implied, therein) without
             first obtaining the  consent to such employment  of the  insurers
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner  covenants with  the  Mortgagee that  throughout  the Credit
       Facility Period the Owner will:

       (a)   keep the  Rig documented in its name  as a Panamanian flag vessel
             and  do or allow  to be done  nothing whereby  such documentation
             may be forfeited or imperilled;

       (b)   not without  the previous  consent in  writing  of the  Mortgagee
             except as otherwise contemplated by the  Credit Agreement, change
             the  name of  the Rig or  make any modification  to the Rig which
             would  materially  alter  the  structure,  type   or  performance
             characteristics of  the Rig and which would materially reduce the
             value of the Rig;

       (c)   keep the  Rig in a good and  efficient state of repair consistent
             with first-class ship-ownership and management  practice employed
             by owners of drilling rigs of similar size and type  and so as to
             maintain  her   present  class  (namely  +A1   Column  Stabilized
             Drilling Unit) at Det  Norske Veritas free of recommendations and
             qualifications  and  change  of  class, save  those  approved  in
             writing by the Mortgagee and so as to  comply with all applicable
             laws, treaties  and conventions  of  the Republic  of Panama  and
             other applicable jurisdictions, and rules  and regulations issued
             thereunder, and have on  board as and when required thereby valid
             certificates showing compliance therewith;

       (d)   procure that all repairs to or  replacement of any damaged,  worn
             or  lost parts  or  equipment in  such  manner  (both as  regards
             workmanship  and  quality  of  materials) as  to  not  materially
             diminish  the value  of the Rig  and not  to remove  any material
             part of,  or item of equipment  owned by the Owner  installed on,
             the  Rig  unless (i)  the part  or item  so removed  is forthwith
             replaced  by  a  suitable  part  or item  which  is  in  the same
             condition as or better condition than  the part or item  removed,
             is free  from any Security Interest  (other than Permitted Liens)
             in favor of any  person other than the  Mortgagee and becomes  on
             installation on the Rig the property of  the Owner and subject to
             the security  constituted by  this Mortgage  or (ii) the  removal
             will not materially diminish the value of the Rig;

       (e)   submit  the Rig  to such periodical  or other  surveys as  may be
             required  for  classification  purposes  and if  so  required  to
             supply to the  Mortgagee copies of  all survey reports  issued in
             respect thereof;

       (f)   permit the Mortgagee  by independent surveyors to  board the  Rig
             at  all  reasonable times  and  upon  reasonable notice  for  the
             purpose  of  inspecting  her  condition  or for  the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and  to  afford  all  proper  facilities  for  such  inspections,
             provided that unless an  Event of Default shall have occurred and
             be  continuing, the cost of any such  inspection shall be for the
             account of the Mortgagee;

       (g)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental  charges, fines and  penalties lawfully
             charged on  or  in respect  of the  Rig  and all  other  expenses
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the Rig  pursuant  to legal  process,  or  in the  event  of  her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (h)   not  employ the  Rig  or allow  her  employment in  any trade  or
             business  which is  unlawful  under  the  laws  of  any  relevant
             jurisdiction or  in carrying  illicit or  prohibited goods or  in
             any manner whatsoever which can reasonably be expected  to render
             her  liable to destruction,  seizure or  confiscation and  in the
             event of  hostilities in any  part of  the world (whether  war be
             declared or not) not employ the  Rig or suffer her employment  in
             carrying any contraband goods  or to enter or  trade to any  zone
             which  is declared a  war zone  by any government  or by  the War
             Risks insurers of the Rig unless  there shall have been  effected
             by  the Owner  (at  its  expense)  such  special,  additional  or
             modified   insurance  cover  as   the  Mortgagee  may  reasonably
             require;

       (i)   promptly furnish to the  Mortgagee all such information as it may
             from  time to  time require  regarding the  Rig, her  employment,
             position  and  engagements,   particulars  of  all  towages   and
             salvages  and, upon  the  request of  the  Mortgagee in  writing,
             copies of all charters  and other contracts for her employment or
             otherwise howsoever concerning her;

       (j)   notify the  Mortgagee forthwith by telecopy  thereafter confirmed
             by letter of:

             (i)   any  casualty to  the Rig  which is  or is  likely to  be a
                   Major Casualty; and

             (ii)  any  occurrence in  consequence whereof the  Rig has become
                   or is,  by the  passing of  time  or  otherwise, likely  to
                   become a Total Loss; and

             (iii) any  requirement or  recommendation made by  any insurer or
                   classification society  or by any competent authority which
                   is not complied with; and

             (iv)  any  arrest  of  the  Rig  or  the  exercise  or  purported
                   exercise  of any lien on  the Rig or any requisition of the
                   Rig for hire; and

             (v)   any intended dry docking of the Rig,  as to which the Owner
                   shall  give the  Mortgagee 30 days  prior notice, provided,
                   that in the event of any emergency dry docking of the  Rig,
                   the Owner shall immediately notify the Mortgagee; and

             (vi)  any intended deactivation  or lay-up of the Rig (other than
                   for  normal periods of inactivity between contracts for the
                   Rig  during  which  periods the  Rig  remains  manned)  and
                   obtain the prior written consent of the Mortgagee; 

       (k)   keep  proper books  of account in  respect of the  Rig and as and
             when the  Mortgagee may  so reasonably  require  make such  books
             available for inspection on  behalf of the Mortgagee  and furnish
             satisfactory  evidence  that the  wages  and  allotments and  the
             insurance  of the master  and crew are  being regularly  paid and
             that all deductions  from crew's wages  in respect of  tax and/or
             social  security liability  are being properly  accounted for and
             that the master has no claim  for disbursements other than  those
             incurred by him in the ordinary  course of trading on the  voyage
             then in progress;

       (l)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit  Agreement which apply  to the  Rig and the  Owner, and in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (m)   not without  the previous  consent in  writing  of the  Mortgagee
             (such consent not to  be unreasonably withheld), put the Rig into
             the possession of any  person for the purpose of  work being done
             upon her in an amount exceeding  or likely to exceed Two  Million
             Five  Hundred  United  States Dollars  (US$2,500,000.00)  (or the
             equivalent in any  other currency) unless (i)  such person  shall
             first have given  to the Mortgagee  and in terms  satisfactory to
             it  a written undertaking not to exercise any lien on the Rig for
             the cost of such work or otherwise or (ii) the cost of such  work
             shall be fully covered by applicable insurance;

       (n)   comply  with and  satisfy all  the provisions  of applicable laws
             and  regulations  of  the Republic  of  Panama,  as  at  any time
             amended, in order  to establish and  maintain this Mortgage  as a
             first priority naval  mortgage thereunder upon the  Rig and  upon
             all renewals,  improvements and  replacements made  in or to  the
             same, and promptly to furnish to the  Mortgagee from time to time
             such  proofs as the  Mortgagee may  request for  its satisfaction
             with respect to the compliance by  the Owner with the  provisions
             of this  sub-clause, including,  appropriate certificates of  the
             Public  Registry  showing  that  this  Mortgage   has  been  duly
             registered and  filed and  is a  first and absolute  lien on  the
             Rig;

       (o)   place,  and use  due diligence  to retain,  a properly  certified
             copy  of this Mortgage on board the Rig with her papers and cause
             such certified  copy of this Mortgage to be  exhibited to any and
             all persons having  business with the  Rig which might  give rise
             to any  lien  thereon other  than a  lien  for crew's  wages  and
             salvage and to any  representative of the Mortgagee on demand and
             to place  and keep prominently displayed in the chart room and in
             the master's cabin  of the Rig a  framed printed notice  in plain
             type  in English  of  such size  that  the  paragraph of  reading
             matter  shall cover a  space not  less than 6  inches wide  and 9
             inches high reading as follows:


                                               "NOTICE OF MORTGAGE

                    This  Rig  is  subject  to  an  Indenture  of  First  Naval
             Mortgage in  favor of  CHRISTIANIA BANK OG  KREDITKASSE, NEW YORK
             BRANCH,  as Administrative Agent  for the  Banks defined  in said
             Mortgage, in conformity with the  provisions of Chapter V,  Title
             IV of  Book Second of  the Code  of Commerce,  and the  pertinent
             provisions  of  the  Civil  Code and  other  legislation  of  the
             Republic  of Panama.   Under the terms  of said  Mortgage neither
             the owner,  any charterer,  the Master of  the Rig nor  any other
             person shall have the  right, power or authority to create, incur
             or permit to  be placed upon  the Rig  any other lien  whatsoever
             other than  for current  crew's wages  and salvage  and Permitted
             Liens (as that term is defined in said Mortgage)."

       (p)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (q)   notify the Mortgagee forthwith upon:

             (i)   any Environmental Claim which could reasonably be  expected
                   to result in damages in excess of  US$200,000 being or made
                   against  the  Owner, or  otherwise in  connection with  the
                   Rig; or

             (ii)  any   Environmental  Incident   occurring,  and   keep  the
                   Mortgagee advised, in writing on  such regular basis and in
                   such detail as the Mortgagee shall require,  of the Owner's
                   response  to  such  Environmental  Claim  or  Environmental
                   Incident.

       (r)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by  the Credit  Agreement)  without the  written  consent of  the
             Mortgagee  having  first  been  obtained, and  any  such  written
             consent to any one  such sale, mortgage or transfer shall  not be
             construed to be  a waiver of this  provision with respect to  any
             subsequent  proposed sale, mortgage or transfer.   Any such sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage and  the lien it creates.   The Owner  shall not charter
             the Rig to, or permit  the Rig to serve under any  contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or  "specially designated national"
             of a "designated foreign country," in the  Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury Department,  31 C.F.R. Parts 500  and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya" or  "Libyan  entity"  in  the  Libyan
             Sanctions Regulations  of the United  States Treasury Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of the Government of  Iraq" or "Iraqi Government  entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified  at 31 C.F.R.  Part 575, as  amended, all  within the
             meaning   of   said   Regulations   or   of    any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter any Cuban  port for any purpose or engage  in any
             transaction  that violates  any provision of  said Regulations or
             that  violates  any   provision  of   the  Iranian   Transactions
             Regulations,  31 C.F.R.  Part 560, as  amended, the Foreign Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction or violation would  (i) expose  the Mortgagee to  any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (s)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary  to  law  (except   where  the  failure  to  operate  in
             compliance with any law  would not have a material adverse effect
             on the Owner, the  Rig or the lien  of this Mortgage), shall  not
             abandon  the Rig  in a foreign  port and shall  not engage in any
             unlawful  trade or violate any law or  carry any cargo that shall
             expose the Rig to forfeiture or capture.

8.     PROTECTION OF SECURITY

8.01   The Mortgagee shall  without prejudice to  its other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound) at any time and as often as may  be necessary (but unless an
       Event of  Default shall  have  occurred and  be  continuing with  prior
       written notice to the Owner) to take  any such action as it may  in the
       reasonable  exercise of  its discretion  think fit  for the  purpose of
       protecting  or maintaining  the security  created by  this Mortgage and
       the other Credit Documents (including, without  limitation, such action
       as  is  referred  to  in  Clause 8.02)  and  each  and  every  expense,
       liability,  or  loss (including,  without limitation,  reasonable legal
       fees) so incurred by  the Secured Creditors in or  about the protection
       or maintenance  of  the said  security together  with interest  payable
       thereon under Clause 4.01(b) shall  be repayable to it by the  Owner on
       demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if the  Owner does not  comply in any  material respect  with the
             provisions  of Clause 6  or any  of them  the Mortgagee  shall be
             entitled (but not  bound) to effect or  to replace and renew  and
             thereafter to maintain the Insurances in  such manner it, in  its
             discretion,  may  think fit  and  to require  that  all policies,
             contracts  and   other  records   relating   to  the   Insurances
             (including details  of any correspondence  concerning outstanding
             claims)  be forthwith delivered to such  brokers as the Mortgagee
             may  nominate  and,  upon  the  direction  of  the  Mortgagee  to
             collect, recover,  compromise and  give a good  discharge for all
             claims  then   outstanding  or   thereafter  arising   under  the
             Insurances  or any  of them  and  to take  over or  institute (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection   therewith  as   the   Mortgagee  in   its   absolute
             discretion, may think fit  and to permit the brokers through whom
             the  collection  or recovery  is  effected  to  charge the  usual
             brokerage therefor;

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  or  7.01(f) the  Mortgagee  shall be  entitled  (but not
             bound)  to arrange  for the  carrying out  of such repairs  to or
             surveys of the Rig as it deems expedient or necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) the Mortgagee  shall be entitled  (but not bound)  to pay
             and discharge  all such  debts, damages and  liabilities and  all
             such tolls,  dues, taxes, assessments,  charges, fines, penalties
             and other outgoings as are therein  mentioned and/or to take  any
             such measures as it  deems expedient or necessary for the purpose
             of securing the release of the Rig.

9.     ENFORCEABILITY AND MORTGAGEE'S POWERS

9.01   Upon  the happening of any  of the  Events of Default  specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to  the effect that an Event of Default
       has  occurred (and whether prior to or after the Mortgagee or the Banks
       having  served  on the  Owner  any such  notice  as is  referred  to in
       Section  9 of the  Credit Agreement) the  security constituted  by this
       Mortgage shall become immediately  enforceable and the Mortgagee  shall
       be  entitled, as  and  when it  may  see fit,  to  put into  force  and
       exercise all  or any of the powers possessed  by it as mortgagee of the
       Rig or otherwise and in particular:

       (a)   to  exercise  all the  rights  and  remedies in  foreclosure  and
             otherwise  given to  mortgagees by  the laws  of the  Republic of
             Panama or other applicable laws;

       (b)   to take possession of the Rig  whether actually or constructively
             and/or otherwise to take control of the Rig wherever the Rig  may
             be  and cause the Owner or any  other person in possession of the
             Rig forthwith upon demand  to surrender the same to the Mortgagee
             without legal process and  without liability of the Mortgagee for
             any  losses or  damages incurred  thereby and  without having  to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Mortgagee;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure that the Mortgagee collect, recover,  compromise and give
             good discharge  for any and all moneys or  claims for moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection or recovery is  effected to charge the usual brokerage
             therefor;

       (e)   to take  over or institute  (if necessary using  the name of  the
             Owner)  all such  proceedings  in connection  with  the Rig,  the
             Insurances, or any Requisition  Compensation as the Mortgagee  in
             its  absolute discretion  thinks fit and  to discharge, compound,
             release or compromise claims  against the Owner in respect of the
             Rig which have given  or may give rise to  any charge or lien  on
             the  Rig  or  which are  or  may  be  enforceable  by proceedings
             against the Rig;

       (f)   to  sell the  Rig  or any  share  therein with  or without  prior
             notice to  the Owner free  from any claim  of or by  the Owner of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or all of the purchase  price be deferred) as the  Mortgagee
             in its absolute  discretion may determine with power  to postpone
             any  such sale, without being  answerable for any loss occasioned
             by  such  sale or  resulting  from  postponement thereof,  and/or
             itself to purchase the Rig  at any such public auction and to set
             off  the  purchase  price  against  all   or  any  part  of   the
             Obligations,  subject  to  notice  of sale  being  given  by  the
             Mortgagee to the  Owner and other  mortgagees of record,  if any,
             by  airmail,  postage  pre-paid  and  by  publication  once  in a
             newspaper of general circulation  in the City of Panama, Republic
             of  Panama, not less than twenty (20) calendar days in advance of
             the sale, to satisfy  the requirement of notice of sale contained
             in Article  1527 of  the Panama Code  of Commerce.   Such  notice
             shall be necessary only in respect of the initial date of sale;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and for such period as the  Mortgagee in its absolute  discretion
             deems  expedient  and for  the purposes  aforesaid  the Mortgagee
             shall  be  entitled  to do  all  acts  and  things  incidental or
             conducive   thereto  and   in  particular  to   enter  into  such
             arrangements respecting  the Rig, and the  insurance, management,
             maintenance, repair,  classification, chartering and   employment
             of the Rig, in  all respects as if  the Mortgagee were the  owner
             of  the Rig and  without being responsible  for any  loss thereby
             incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses as  may  be incurred  by  the Mortgagee  in or  about  the
             exercise   of   the  power   vested   in   the  Mortgagee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or loss  incurred by the Mortgagee in or about
             or  incidental  to the  exercise  by  it  of  any of  the  powers
             aforesaid.

9.02   The Mortgagee  shall not  be  obliged to  make any  enquiry  as to  the
       nature  or sufficiency  of  any  payment  received  by  it  under  this
       Mortgage or to make  any claim, take any  action or enforce any  rights
       and  benefits assigned to  the Mortgagee by  this Mortgage  or to which
       the Mortgagee may at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees, delegates  and  advisers shall  be liable  for any  expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with the  exercise  or purported  exercise  of any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Mortgagee shall  not by reason of the taking  possession of the Rig
       be liable to account  as mortgagee-in-possession or for anything except
       actual  receipts or be liable for any  loss upon realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon  any sale of  the Rig or  any share  therein by the  Mortgagee the
       purchaser  shall not  be bound to  see or enquire  whether the power of
       sale  of the  Mortgagee  has  arisen in  the  manner provided  in  this
       Mortgage and  the sale shall  be deemed to  be within the  power of the
       Mortgagee and  the receipt  of  the Mortgagee  for  the purchase  money
       shall effectively  discharge the purchaser  who shall not be  concerned
       with the manner of  application of the  proceeds of sale  or be in  any
       way answerable therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All  moneys  received  by  the  Mortgagee  or any  other  Secured
             Creditor,  including, without  limitation, in respect  of sale of
             the Rig  or any part  thereof, in respect  of recovery under  the
             Insurances, or in respect  of Requisition Compensation, shall  be
             applied in the following manner:

             (i)   first, to  the payment of  all amounts  owing the Mortgagee
                   of the type described in clauses (ii)  and (iii) of Recital
                   (D);

             (ii)  second,  to the extent  moneys remain after the application
                   pursuant to the  preceding clause (i),  an amount  equal to
                   the  outstanding Obligations  shall be paid  to the Secured
                   Creditors  as  provided  in  Clause  10.01(c),  with   each
                   Secured  Creditor  receiving  an   amount  equal  to   such
                   Obligations   held   by  it   or,  if   the  proceeds   are
                   insufficient  to pay in full all such  Obligations, its Pro
                   Rata Share  (as defined below) of  the amount remaining  to
                   be distributed; and

             (iii) third,  to the  extent moneys remain  after the application
                   pursuant  to  the  preceding  clauses  (i)  and  (ii),  and
                   following  the  termination of  this  Mortgage pursuant  to
                   Clause 3.01, any  surplus then  remaining shall be paid  to
                   the Owner,  subject, however, to  the rights  of the holder
                   of  any  then  existing Lien  of  which  the  Mortgagee has
                   actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid  amount of such Obligations owing  to or held by such
             Secured  Creditor  and  the  denominator  of  which  is  the then
             outstanding  amount of  all such  Obligations.   For  purposes of
             determining  the  amount payable  to each  Secured  Creditor, the
             Mortgagee  shall be entitled to  request each Secured Creditor to
             furnish it with written  notice of the amount of Obligations then
             owed  to  it and  shall  be entitled  to reply  upon  the amounts
             stated therein in making such distribution.

       (c)   All payments  required to be made  to Secured Creditors hereunder
             shall  be  made to  the  Administrative  Agent  under the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01, the  Mortgagee shall be entitled to reply upon
             (i) the Administrative  Agent under the Credit Agreement and (ii)
             the   Secured   Creditors  for   a   determination   (which   the
             Administrative  Agent  and   each  Secured  Creditor,   by  their
             acceptance of the  benefits of  this Mortgage shall  be obligated
             to  provide upon  request of  the  Mortgagee) of  the outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge  (including by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in furnishing  information  pursuant  to  the
             preceding  sentence,  and  the  Mortgagee,  in  acting hereunder,
             shall  be  entitled to  assume  that  no  obligations other  than
             principal, interest and regularly  accruing fees are owing to any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The  Owner shall execute and do all such assurances, acts and things as
       the Mortgagee in its absolute discretion may require for:

       (a)   perfecting or  protecting the security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting any of the  rights of the Mortgagee  and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the  security constituted by this Mortgage  and the
             covenants and obligations of the Owner under  this Mortgage shall
             inure to the benefit  of any transferee, successor or assignee of
             the Mortgagee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Mortgagee under this Mortgage,

       in any  such case, forthwith  upon demand by the  Mortgagee and  at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The Owner, by  way of security  and in order  to more fully  secure the
       performance of the Obligations under this  Mortgage, hereby irrevocably
       appoints the Mortgagee as its  attorney for the duration of  the Credit
       Facility Period for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required)  registering in its name all  documents which the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on behalf  of  the  Mortgagee until  this
             Mortgage shall  have become  immediately enforceable pursuant  to
             Clause 9.01; and

       (b)   executing,   signing,  perfecting,   doing   and  (if   required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of such power as is  referred to in Clause 12.01(a) by  or
       on behalf of the  Mortgagee shall not put  any person dealing with  the
       Mortgagee upon  any enquiry  as  to whether  this  Mortgage has  become
       enforceable  nor shall  such person be  in any  way affected  by notice
       that this Mortgage has not become enforceable  and, in relation to both
       Clauses 12.01(a) and  12.01(b), the  exercise by the  Mortgagee of such
       power  shall be  conclusive evidence  as against  third parties  of its
       right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in  the  preservation  or   enforcement  of  the  rights  of  the
             Mortgagee under this Mortgage; or

       (c)   on the  release of  the Rig  from  the security  created by  this
             Mortgage,

       and the Secured  Creditors and each such  agent or attorney may  retain
       and pay all sums  in respect of  the same out  of money received  under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by a Secured Creditors or such  agent or attorney shall be  recoverable
       on a full indemnity basis.

13.02  Without limiting the  foregoing Clause 13.01, the  Owner hereby further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective officers,  directors, employees,  attorneys and agents  from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable  attorneys'   fees   and   expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by  or asserted against them, or any of them, by reason of (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal  injury (including wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;   (c)  any  Environmental  Claim   brought  or
       threatened,  or  settlement  reached; or  (d)  any  violation of  laws,
       orders, regulations, requirements or demands of  government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable law  or regulation, and whether pursuant to  a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or for  any  other  reason,  any  payment under  or  in
       connection with the  Credit Agreement or this Mortgage is made or fails
       to be satisfied in a  currency (the "payment currency") other  than the
       currency in which such payment is due under or  in connection with this
       Mortgage  (the "contractual  currency"), then  to the  extent that  the
       amount  of  such  payment  actually  received by  the  Mortgagee,  when
       converted into the contractual  currency at the rate of exchange, falls
       short of the amount due  under or in connection with this Mortgage, the
       Owner, as  a separate and  independent obligation, shall indemnify  and
       hold harmless the Mortgagee against  the amount of such shortfall.  For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which the Mortgagee is  able on the date of such payment (or,  if it
       is not  practicable  for  the Mortgagee  to  purchase  the  contractual
       currency with the payment currency  on the date of such payment, at the
       rate  of  exchange  as  soon  afterwards  as  is  practicable  for  the
       Mortgagee to  do so)  to  purchase the  contractual  currency with  the
       payment  currency and  shall take  into account  any premium  and other
       costs of exchange with respect thereto.

14.    EXPENSES

14.01  The Owner shall pay to  any Secured Creditor on demand all  costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the   negotiation,  preparation  and   execution  of  the  Credit
             Agreement and  the  other  Credit  Documents (or  any  of  them);
             and/or

       (b)   the  preserving or  enforcing of,  or attempting  to preserve  or
             enforce,  any of  its rights  under the  Credit Agreement  or the
             other Credit Documents (or any of them).

14.02  The Owner  shall pay to  the Mortgagee  on demand  all costs, fees  and
       expenses (including, but not limited to,  legal fees and expenses)  and
       Taxes thereon incurred by any Secured Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the Credit Agreement or  the other Credit Documents  (or
             any of  them)  requested by  the  Owner, necessary  or  advisable
             under  applicable law  or  relating  to  the syndication  of  the
             Credit  Facility,  or   initiated  during   the  occurrence   and
             continuation of an Event of Default; and/or

       (b)   any consent or waiver  required from the Mortgagee in relation to
             the Credit Agreement  and the other  Credit Documents (or  any of
             them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties and  Taxes to which  the Credit Agreement  and the  other Credit
       Documents (or  any of  them)  may be  subject or  give  rise and  shall
       indemnify the Mortgagee on  demand against any and all liabilities with
       respect to or  resulting from any delay or omission  on the part of the
       Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices required to be given to the Mortgagee shall be made to  the
       following address:

             Christiania Bank og Kreditkasse, New York Branch
             11 West 42nd Street
             7th Floor
             New York, New York  10036
             Attention:    Loan Administration
             Telephone:    (212) 827-4800
             Telefax:      (212) 827-4888

       All other  notices  shall be  made to  the  addresses provided  for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This Mortgage shall be binding  upon and shall inure to the  benefit of
       the Secured Creditors and their respective  transferees, successors and
       permitted assigns,  and references  in  this Mortgage  to  any of  them
       shall be construed accordingly.

16.02  The Owner  may not assign  or transfer  all or any  part of  its rights
       and/or obligations under this Mortgage.

16.03  Pursuant  to Section 12.04 of  the Credit Agreement,  each Bank has the
       right  to  assign or  transfer all  or any  part  of its  rights and/or
       obligations under  the Credit Agreement on  the terms therein provided.
       The  Mortgagee  shall notify  the  Owner  promptly  following any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The total amount of  this Mortgage is Three Hundred Million  US Dollars
       (US$300,000,000)  of principal  plus  interest, fees,  commissions  and
       performance of mortgage  covenants.  The  discharge amount is  the same
       as the total amount.

18.    WAIVER; AMENDMENT

18.01  None  of the  terms  and conditions  of this  Mortgage may  be changed,
       waived, modified or varied in any  manner whatsoever unless in  writing
       duly signed by the Owner  and the Mortgagee (with the consent of either
       the Required Banks  or, to the extent required by  Section 12.12 of the
       Credit Agreement,  all  of the  Banks).   No  amendment  to the  Credit
       Agreement  affects  the  rights   and  obligations  of  the   Mortgagee
       hereunder shall  be  effective without  the  consent of  the  Mortgagee
       thereto.

19.    MISCELLANEOUS

19.01  This Mortgage shall be governed by the laws of the Republic of Panama.

19.02  If at any time  any one or more  of the provisions in this  Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law or  regulation, the  validity, legality  and enforceability  of the
       remaining provisions of this Mortgage shall not  be in any way affected
       or impaired thereby.

19.03  The  Mortgagee, at  any time  and from  time to  time, may  delegate by
       power of attorney  or in any other manner to  any person or persons all
       or any of  the powers, authorities  and discretions which  are for  the
       time  being  exercisable  by  the  Mortgagee  under  this  Mortgage  in
       relation to the Rig.   Any such delegation may be made  upon such terms
       and subject to such  regulations as the Mortgagee  may think fit.   The
       Mortgagee shall not be  in any way liable  or responsible to the  Owner
       for any  loss or  damage arising  from any  act,  default, omission  or
       misconduct on the part of any such delegate.

19.04  The  appearing parties  hereby confer  a special  power of  attorney on
       Benedetti &  Benedetti, lawyers of  Panama, Republic  of Panama  and/or
       any partners in the firm  authorizing such firm or any such  partner to
       take  all necessary  steps  to record  this  Indenture  of First  Naval
       Mortgage in  the appropriate registries of  the City of Panama,  and to
       substitute this Power of Attorney herein granted.

19.05  A  certification or  determination by  the Mortgagee  as to  any matter
       provided for in this  Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.06  The Mortgagee  declares  that  it accepts  the  naval  mortgage  hereby
       created under the terms above set forth.

20.    JURISDICTION

20.01  The  Owner agrees that  the Mortgagee shall have  the liberty but shall
       not  be obliged to take any proceedings in the courts of any country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for the purpose  of any proceedings for such enforcement  the Owner
       hereby submits to the jurisdiction  of the courts of any country of the
       choice of the Mortgagee.

20.02  Without  prejudice to  the generality  of  Clause 20.01,  the Mortgagee
       shall  have the  right to  arrest and  take action  against the  Rig at
       whatever place the Rig  shall be found lying and for the purpose of any
       action  which the  Mortgagee  may  bring  before  the  courts  of  such
       jurisdiction  or other judicial  authority and for  the purpose  of any
       action  which  the  Mortgagee may  bring  against  the  Rig,  any writ,
       notice,  judgment or  other  legal process  or  documents may  (without
       prejudice to  any other  method  of service  under  applicable law)  be
       served  upon the  master  of the  Rig  (or upon  anyone  acting as  the
       master)  and such service shall be deemed good service on the Owner for
       all purposes.

20.03  The  Owner agrees  that should the  Mortgagee bring  a legal  action or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising out of  or in connection with  this Mortgage, no immunity  from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without   limitation,  suit,   attachment  prior   to  judgment,  other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed  by or on behalf of  the Owner or with  respect of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner hereby  consents generally in respect of  any legal action or
       proceedings arising out of or  in connection with this Mortgage  to the
       giving  out of any  relief or  the issue of  any process  in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which  may be made or given in such
       action or proceedings.

IN WITNESS   whereof  the Owner  and the  Mortgagee have  duly executed  these
presents the day and year first before written.


READING & BATES DRILLING CO.


By:  _____________________________________
       Name:  T.W. Nagle
       Title: Vice President and Treasurer



CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH


By:  _____________________________________
       Name:
       Title:


By:  _____________________________________
       Name:
       Title:




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )    ss:
COUNTY OF NEW YORK       )


                   On this  13th day of November,  1996, before  me personally
appeared Timothy  W. Nagle, to me  known and who resides at  13307 Tosca Lane,
Houston, Texas; and who  submitted evidence to me that he  is a Vice President
and Treasurer of  READING & BATES DRILLING  CO., the company described  in and
which executed the  foregoing mortgage;  and that he  signed his name  thereto
pursuant  to  authority granted  to  him by  the  Board of  Directors  of said
corporation.






____________________________________
Notary Public




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )    ss:
COUNTY OF NEW YORK       )


                   On this  13th day of November,  1996, before  me personally
appeared Hans  Chr. Kjelsrud  to me  known and  who resides  at 115  East 87th
Street,  New York, NY;  and who submitted  evidence to me  that he/she is Vice
President of CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH, the corporation
described in and which executed the foregoing mortgage; and that he/she signed
his/her name thereto pursuant to authority granted  to him/her by the Board of
Directors of said corporation.



____________________________________
Notary Public




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )    ss:
COUNTY OF NEW YORK       )


                   On  this 13th  day of November,  1996, before me personally
appeared  Justin F. McCarty,  III to me  known and who  resides at 35 Pleasant
Street, Katonah,  NY; and  who submitted evidence  to me  that he/she  is Vice
President of CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH, the corporation
described in and which executed the foregoing mortgage; and that he/she signed
his/her name thereto pursuant to authority granted to him/her by the  Board of
Directors of said corporation.



____________________________________
Notary Public



                                                                Exhibit 10.131


                       INDENTURE OF FIRST NAVAL MORTGAGE

                         READING & BATES DRILLING CO.

                                    - and -

                       CHRISTIANIA BANK OG KREDITKASSE,
                               NEW YORK BRANCH,
              administrative agent, arranger and security trustee

                                 as Mortgagee

                                    RIG 41

                            Dated November 13, 1996

==============================================================================
                                     INDEX

CLAUSE      SUBJECT MATTER                                                PAGE

  1         REPRESENTATIONS AND COVENANTS . . . . . . . . . . . . . . . . . 2 
  2         DEFINITIONS AND INTERPRETATION  . . . . . . . . . . . . . . . . 4 
  3         MORTGAGE  . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 
  4         PAYMENT COVENANTS . . . . . . . . . . . . . . . . . . . . . .  10 
  5         PRESERVATION OF SECURITY  . . . . . . . . . . . . . . . . . .  10 
  6         INSURANCE . . . . . . . . . . . . . . . . . . . . . . . . . .  11 
  7         RIG COVENANTS . . . . . . . . . . . . . . . . . . . . . . . .  14 
  8         PROTECTION OF SECURITY  . . . . . . . . . . . . . . . . . . .  18 
  9         ENFORCEABILITY AND MORTGAGEE'S POWERS . . . . . . . . . . . .  19 
  10        APPLICATION OF MONEYS . . . . . . . . . . . . . . . . . . . .  20 
  11        FURTHER ASSURANCES  . . . . . . . . . . . . . . . . . . . . .  22 
  12        POWER OF ATTORNEY . . . . . . . . . . . . . . . . . . . . . .  22 
  13        INDEMNITIES . . . . . . . . . . . . . . . . . . . . . . . . .  23 
  14        EXPENSES  . . . . . . . . . . . . . . . . . . . . . . . . . .  24 
  15        COMMUNICATIONS  . . . . . . . . . . . . . . . . . . . . . . .  24 
  16        ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . .  25 
  17        TOTAL AMOUNT, ETC.  . . . . . . . . . . . . . . . . . . . . .  25 
  18        WAIVER; AMENDMENT . . . . . . . . . . . . . . . . . . . . . .  25 
  19        MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . .  25 
  20        JURISDICTION  . . . . . . . . . . . . . . . . . . . . . . . .  26 

EXHIBIT 1   FORM OF CREDIT AGREEMENT

==============================================================================

       THIS  INDENTURE OF FIRST NAVAL MORTGAGE made and entered into this 13th
day  of November,  1996, between  READING &  BATES  DRILLING CO.,  an Oklahoma
corporation  duly constituted and existing in conformity  with the laws of the
State of  Oklahoma with its principal  office at 901 Threadneedle,  Suite 200,
Houston,  Texas 77079 (hereinafter called the "Owner") and CHRISTIANIA BANK OG
KREDITKASSE, NEW YORK  BRANCH  having its  office at 11 West 42nd  Street, New
York, NY 10036, as  agent for the Banks (as  hereinafter defined) (hereinafter
called the  "Mortgagee"), on  the Panamanian offshore  drilling rig RIG  41 of
10,078 gross registered tons, 3,024  net registered tons and with a  length of
108.2m, a  breadth of 67.36m  and a  depth of 36.58m  and Permanent Patent  of
Navigation No.  22365-95 (hereinafter called the "Rig"), duly registered under
the laws and flag of the Republic of Panama, the detailed description of which
is hereinafter more particularly set forth.

                             W I T N E S S E T H :

WHEREAS

(A)    The Owner  is  the sole  owner  of the  whole  of the  semi-submersible
       drilling rig RIG 41 documented under the laws  and flag of the Republic
       of Panama.

(B)    By  a Credit  Agreement dated  as  of November  13, 1996  (as modified,
       amended  or supplemented  from time  to  time, the  "Credit Agreement")
       among  (i)  Reading &  Bates  Corporation, a  Delaware  corporation, as
       guarantor ("Holdings"),  (ii) the Owner,  as borrower, (iii) the  banks
       party thereto (the "Banks"), (iv)  Credit Lyonnais New York  Branch and
       Banque  Indosuez, as documentation  agents (the "Documentation Agents")
       and (v) the Mortgagee, as  administrative agent, arranger and  security
       trustee (in  such capacity  the "Administrative  Agent"), (the form  of
       which Credit Agreement  together with the  form of  promissory note  of
       the  Owner attached  as  Exhibit B  thereto  but without  the remaining
       exhibits is  attached hereto as  Exhibit 1), it was  agreed among other
       things that the  Banks would  make available  to the  Owner a  reducing
       revolving credit  facility (the  "Facility") in  the maximum  aggregate
       principal amount at any one  time outstanding of Three  Hundred Million
       United States Dollars  (U.S.$300,000,000), providing for the  making of
       Loans  and the issuance  of and participations in  Letters of Credit as
       contemplated  therein.  As  required by  Article 1515 Section  3 of the
       Commercial Code  of Panama, the dates on which payments of principal in
       respect of the Loans  are due may be determined from  the provisions of
       the Credit Agreement including Section 4.

(C)    The  obligations  of  the  Owner  with  respect  to  the  Facility  are
       evidenced by  the  Credit Agreement  and  the other  Credit  Documents,
       including  the promissory notes  of the Owner  payable to  the order of
       the  respective Banks  (each a "Note"  and, collectively,  the "Notes")
       (the form of which is attached as Exhibit B to the Credit Agreement).

(D)    This Mortgage is  made for the benefit  of the Mortgagee to  secure (i)
       the full and prompt  payment when due of (x) the principal and interest
       on the Notes  issued, and Loans made,  under the Credit  Agreement, and
       all reimbursement obligations  and Unpaid Drawings with  respect to the
       Letters of Credit issued under the  Credit Agreement and (y) all  other
       obligations   and   indebtedness   (including,   without    limitation,
       indemnities, Fees and  interest thereon) of  the Owner  to the  Secured
       Creditors (as hereinafter  defined), whether now existing  or hereafter
       incurred  under,  arising out  of  or  in  connection  with the  Credit
       Agreement   and   the   other  Credit   Documents   including,  without
       limitation, this  Mortgage and  the due  performance and compliance  by
       the Owner  with all of  the terms, conditions  and agreements contained
       in  the  Credit Agreement  and  the other  Credit  Documents including,
       without limitation,  this Mortgage; (ii)  any and all  sums advanced by
       the  Mortgagee in  order  to preserve  the  Collateral (as  hereinafter
       defined) or preserve  its security interest in the Collateral; (iii) in
       the event of any  proceeding for the collection  or enforcement of  any
       indebtedness, obligations, or liabilities  of the Owner referred  to in
       clause (i) above, after an Event of Default shall have occurred and  be
       continuing,  the reasonable  expenses of  the  Mortgagee of  re-taking,
       holding, preparing  for sale  or lease, selling  or otherwise disposing
       of or realizing on the Collateral, or of any exercise by the  Mortgagee
       of its  rights hereunder, together with  reasonable attorneys'  fees of
       counsel to the Mortgagee  and court costs; and (iv) all amounts paid by
       any Indemnitee (as defined herein) as to which such Indemnitee  has the
       right  to reimbursement  under  Clause 13  of  this Mortgage  (all such
       obligations, liabilities,  sums and expenses referred to in clauses (i)
       through   (iv)   above   being  collectively   referred   to   as   the
       "Obligations").  It  is acknowledged and agreed that  the "Obligations"
       shall  include  extensions  of  credit of  the  types  described above,
       whether outstanding on the date of this Mortgage or extended from  time
       to time after the date of this Mortgage.

(E)    This Indenture  of First Naval Mortgage,  which is entered into  by the
       Owner in consideration  of the Banks entering into the Credit Agreement
       and agreeing  to make  the Facility  available to  the Owner  and as  a
       condition  thereto  and  for  other  good  and  valuable  consideration
       provided by  the  Banks (the  sufficiency  of  which the  Owner  hereby
       acknowledges).

NOW, THEREFORE, the appearing  parties, each in the name and  on behalf of his
respective principal, state that  they hereby execute this Indenture  of First
Naval Mortgage pursuant to the following representations:

1.     REPRESENTATIONS AND COVENANTS

1.01   The Owner represents and covenants to the Mortgagee that:

       a.    The Owner is the  sole and  absolute owner of  the Rig under  the
             laws and flag of the Republic of Panama;

       b.    The Owner,  as sole  legal and beneficial  owner of the  Rig, has
             received  and   presently  possesses  a  Provisional   Patent  of
             Navigation for the  Rig, duly issued  by the  Republic of  Panama
             under No. __________;

       c.    Neither  the whole nor  any share  in the  Rig is subject  to any
             Security  Interest  (as  defined  herein)  (except for  Permitted
             Liens (as defined herein) and the lien of this Mortgage);

       d.    the Owner  has  not sold  or transferred,  or agreed  to sell  or
             transfer, title to the Rig or any share therein;

       e.    the Owner  is a corporation  duly organized and validly  existing
             and in good standing under the laws of the State of Oklahoma;

       f.    the  Owner  has full  power  and  authority  (i)  to execute  and
             deliver this Mortgage, (ii) to  mortgage the Rig as  security for
             the Obligations and (iii) to  comply with the provisions  of, and
             perform all its obligations under, this Mortgage;

       g.    the  Owner has  complied with  all statutory  and  other material
             requirements  relative   to  the   ownership,  registration   and
             operation of the Rig;

       h.    the Owner  has  taken  all  necessary  action  to  authorize  the
             execution  and  delivery  of  this  Mortgage  and  this  Mortgage
             constitutes,  the legal,  valid  and  binding obligation  of  the
             Owner enforceable against the Owner in accordance with its  terms
             (except  to   the  extent   limited  by  applicable   bankruptcy,
             reorganization, insolvency, moratorium  or other laws  of general
             application   relating  to   or  affecting   the  enforcement  of
             creditors' rights  as from  time to  time in  effect and  general
             equitable principles)  and when  preliminarily recorded  with the
             Public Registry  in Panama  through the  Panamanian Consulate  in
             New York, New  York will create  a legal,  valid and  enforceable
             first  priority mortgage  lien  on the  Rig  subject only  to the
             permanent  filing of  this  Mortgage in  the  Public Registry  in
             Panama within six  months of the date of the preliminary recorded
             filing;

       i.    the entry  into and  performance by  the Owner  of this  Mortgage
             does  not and  will  not during  the  Credit Facility  Period (as
             defined herein) violate  in any respect (i) any law or regulation
             of any  governmental or official  authority or body,  or (ii) any
             of  the  constitutive  documents  of   the  Owner  including  the
             Certificate of Incorporation or By-laws, as amended from time  to
             time,  or  (iii)  any  material   agreement,  contract  or  other
             undertaking  to which  the Owner is  a party or  which is binding
             upon the Owner or any of its assets;

       j.    all consents,  licenses, approvals and authorizations required in
             connection  with  the  entry  into,  performance,   validity  and
             enforceability   of   this   Mortgage   and   the    transactions
             contemplated  hereby and  thereby have  been obtained  and are in
             full force  and  effect and  will  be  so maintained  during  the
             Credit Facility Period;

       k.    save for such  registrations and filings  as are  referred to  in
             this Mortgage,  it is not necessary  for the  legality, validity,
             enforceability  or admissibility  in  evidence of  this  Mortgage
             that  it or  any document relating  thereto be registered, filed,
             recorded or enrolled  with any court or authority in any relevant
             jurisdiction or  that any stamp, registration or similar taxes be
             paid on or in relation to this Mortgage;

       l.    the  Owner is  in compliance  with  all applicable  Environmental
             Laws  (as defined  herein) and  all  Environmental Approvals  (as
             defined  herein)   relating  to  the   Rig,  its  operation   and
             management and  the business of  the Owner (as  now conducted and
             as  reasonably anticipated  to be  conducted in  the future) have
             been obtained or complied with; 

       m.    no  Environmental  Claim (as  defined  herein) has  been  made or
             threatened against the Owner or otherwise  in connection with the
             Rig;

       n.    no  Environmental   Incident  (as  defined   herein)  which   has
             resulted, or which  could reasonably be expected to result, in an
             Environmental Claim in excess of US$200,000 has occurred; and

       o.    The  Owner  hereby affirms  as  its  representations  all of  the
             statements contained in the "WHEREAS" clauses of this Mortgage.

1.02   The representations and  warranties of the Owner set out in Clause 1.01
       shall survive the execution of this Mortgage and shall be deemed to  be
       repeated at  the time of  the making of  each Loan (as defined  herein)
       and at the time of the issuance of each  Letter of Credit, with respect
       to the  facts and circumstances existing at each  such time, as if made
       at each such time.

1.03   The  Mortgagee  represents  that  the  Banks  have  made  the  Facility
       available  to  the Owner,  as  evidenced  by,  inter  alia, the  Credit
       Agreement, the  Notes and  the Security Documents  (as defined herein),
       and accepts  the Mortgage constituted  by this instrument  upon the Rig
       as security  for  the due  and prompt  payment and  performance of  the
       obligations  of the  Owner  under the  Credit  Agreement and  the other
       Credit Documents.

1.04   Each of the contracting parties declares that  it is satisfied with the
       representations and covenants  made by the  other and  accepts them  as
       true;  and the  parties  mutually  acknowledge their  respective  legal
       status as  well  as the  authority  of  the persons  representing  them
       respectively  in this instrument  to sign the  same on  behalf of their
       respective principals.

2.     DEFINITIONS AND INTERPRETATION

2.01   In this Mortgage unless  the context otherwise requires,  the following
       expressions shall have the following meanings:

       "Administrative Agent" shall  have the same  meaning for  such term  as
       set forth in the Credit Agreement;

       "Bank" means  any lender listed  from time  to time on  Annex I to  the
       Credit Agreement (collectively, the "Banks");

       "Collateral" shall have the same meaning for such term as set forth  in
       the Credit Agreement; 

       "Commitment" shall have the same meaning for such term as set forth  in
       the Credit Agreement;

       "Credit  Agreement" means  the Credit  Agreement, dated  as of November
       13,  1996, among  Holdings,  the Owner,  the  Banks, the  Documentation
       Agents, and the Administrative Agent  first referred to in  Recital (B)
       hereto, as modified, amended or supplemented from time to time; 

       "Credit  Documents" shall have the  meaning for such  term as set forth
       in the Credit Agreement;

       "Credit Facility Period" shall mean  the period commencing on  the date
       hereof and  ending on the  date the Total  Commitments have terminated,
       no  Letters  of  Credit  remain  outstanding  and the  Unpaid  Drawings
       together with  interest, fees  and all  other obligations  are paid  in
       full;

       "Default   Rate"  shall  mean  the   rate  of  interest  calculated  in
       accordance with Section 1.08(c) of the Credit Agreement;

       "Environmental  Approvals"  means  all  approvals,  licenses,  permits,
       exemptions  or  authorization required  under  applicable Environmental
       Laws;

       "Environmental Claims" means any and  all administrative, regulatory or
       judicial  actions,  suits,  demands,  demand  letters,  claims,  liens,
       notices  of  noncompliance or  violation,  investigations  (other  than
       internal  reports prepared  by  Holdings  or  any of  its  Subsidiaries
       solely in  the ordinary course  of business of  such entity and not  in
       response  to  any  third  party  action  or  request  of any  kind)  or
       proceedings relating  in any way to any Environmental Law or any permit
       issued,  or  any  approval  given,  under  any such  Environmental  Law
       (hereafter, "Claims"), including,  without limitation, (a) any  and all
       Claims  by  governmental or  regulatory  authorities  for  enforcement,
       cleanup,  removal,  response,  remedial or  other  actions  or  damages
       pursuant  to any  applicable  Environmental Law,  and  (b) any  and all
       Claims   by    any   third   party   seeking   damages,   contribution,
       indemnification,  cost  recovery,  compensation  or  injunctive  relief
       resulting  from Hazardous  Materials  arising  from alleged  injury  or
       threat of injury to health, safety or the environment;

       "Environmental  Incident"  means  (i)  any  release of  Environmentally
       Sensitive  Material  from   the  Rig,  (ii)  any   incident  in   which
       Environmentally  Sensitive Material  is released  from  a vessel  other
       than the  Rig and which  involves collision  between the  Rig and  such
       other vessel  or some  other incident  of navigation  or operation,  in
       either case, where  the Rig or the  Owner are actually or  allegedly at
       fault or otherwise liable  (in whole or in part) or  (iii) any incident
       in which Environmentally Sensitive  Material is released from  a vessel
       other than the Rig and where the Rig is actually or potentially  liable
       to  be arrested  as a  result and/or  where  the Owner  is actually  or
       allegedly  at  fault or  otherwise  liable  (and,  in  each such  case,
       "release"  shall  mean  disposing,  discharging,  injecting,  spilling,
       leaking,  leaching,  dumping, emitting,  escaping,  emptying,  seeping,
       placing  and the  like, into  or  upon any  land or  water  or air,  or
       otherwise entering into the environment);

       "Environmental Law"  means any  applicable Federal,  state, foreign  or
       local statute,  law, rule, regulation,  ordinance, code, guide,  policy
       and rule of common  law now or hereafter in effect and in  each case as
       amended, and  any judicial  or  administrative interpretation  thereof,
       including  any judicial  or  administrative  order, consent  decree  or
       judgment,  relating to  the environment,  health,  safety or  Hazardous
       Materials, including,  without  limitation, CERCLA;  RCRA; the  Federal
       Water Pollution Control Act, as amended, 33 U.S.C.  1251 et seq.;  the
       Toxic Substances Control Act,  15 U.S.C.  7401 et seq.;  the Clean Air
       Act, 42 U.S.C.  7401 et  seq.; the Safe Drinking Water Act,  42 U.S.C.
         3808 et seq.;  the Oil  Pollution Act of  1990, 33 U.S.C.   2701 et
       seq. and  any applicable  state and  local or  foreign counterparts  or
       equivalents;

       "Fees"  shall have the same meaning  for such term as  set forth in the
       Credit Agreement;

       "Hazardous Materials"  means (a) any  petroleum or petroleum  products,
       radioactive materials, asbestos  in any form  that is  or could  become
       friable, urea  formaldehyde  foam  insulation,  transformers  or  other
       equipment  that   contained,  electric   fluid  containing   levels  of
       polychlorinated biphenyls, and radon gas;  (b) any chemicals, materials
       or substances  defined as or  included in the  definition of "hazardous
       substances,"  "hazardous  waste,"  "hazardous  materials,"   "extremely
       hazardous waste,"  "restricted  hazardous waste,"  "toxic  substances,"
       "toxic  pollutants,"  "contaminants,"  or  "pollutants,"  or  words  of
       similar import, under  any applicable  Environmental Law;  and (c)  any
       other  chemical,   material  or   substance,  exposure   to  which   is
       prohibited, limited or regulated by any governmental authority;

       "Indemnitee" shall have the meaning set forth in Section 13.01;

       "Insurances" includes  all policies and  contracts of insurance  (which
       expression includes  all  entries  of  the  Rig  in  a  protection  and
       indemnity  association)  which are  from  time  to  time  taken out  or
       entered into in respect  of the Rig or otherwise by  the Owner (whether
       in the sole name of  the Owner or in the  joint names of the  Owner and
       the Administrative  Agent) and all  benefits thereof (including  claims
       of whatsoever nature and return of premiums);

       "Interest Period"  shall have  the same  meaning for such  term as  set
       forth in Section 1.09 of the Credit Agreement;

       "Letter of Credit" shall  have the  same meaning for  such term as  set
       forth in Section 2.01(a) of the Credit Agreement;

       "Loan(s)" shall have the  same meaning  for such term  as set forth  in
       the Credit Agreement;

       "Major Casualty" means any casualty to  the Rig in respect whereof  the
       claim  or the  aggregate  of the  claims  against all  insurers, before
       adjustment  for any  relevant  franchise  or deductible,  exceeds  Five
       Hundred Thousand United  States Dollars (US$500,000) or  the equivalent
       in any other currency;

       "Note"  means each promissory note of the  Owner referred to in Recital
       (C) hereto and in Section 1.05(a) of the Credit Agreement;

       "Obligations" shall have the meaning provided in Recital (D) hereto;

       "Oil Pollution Act 1990"  means the Oil Pollution Act 1990 (33 U.S.C. 
       2701 et seq.), as amended;

       "Other Rigs"  means,  individually or  collectively,  each of  (i)  the
       semi-submersible  drilling rig JACK BATES owned by the Owner documented
       under the laws and  flag of the United States of  America with Official
       Number 906283  of   19,928  gross  registered   tons  and  14,948   net
       registered tons; (ii) the  jack-up drilling rig D. R. STEWART  owned by
       Reading &  Bates Exploration Co.  ("R&B Exploration") documented  under
       the laws and flag  of the United States of America with Official Number
       626904 of  6,494 gross registered  tons and 5,834  net registered tons;
       (iii) the offshore  drilling rig W.  D. KENT owned  by R&B  Exploration
       documented under  the laws  and flag  of the  United States of  America
       with Official  Number 583169 of  5,383 gross registered  tons and 4,185
       net registered tons;  (iv) the jack-up drilling rig RON TAPPMEYER owned
       by Reading &  Bates (A) Pty Ltd. documented under  the laws and flag of
       Australia with Official  Number 855213 of 11,455 gross  registered tons
       and 3,436 net  registered tons;  (v) the semi-submersible  drilling rig
       J. W. McLEAN owned by  the Owner documented under the laws  and flag of
       the Republic of Panama with  Patente Number 25384-PEXT of  15,453 gross
       registered  tons  and 4,636  net  registered  tons; (vi)  the  offshore
       drilling rig CHARLEY  GRAVES owned by Reading and Bates Borneo Drilling
       Co., Ltd. documented under the laws and flag of the Republic of  Panama
       with  Patente Number  6618-76  CH of  5,829  gross registered  tons and
       1,748 net registered  tons; (vii) the  jack-up drilling  rig HARVEY  H.
       WARD  owned by HRB  Rig Corporation documented under  the laws and flag
       of the United  States of America  with Official Number 642693  of 4,121
       gross registered tons and 3,079  net registered tons; (viii)  the jack-
       up drilling  rig F. G.  McCLINTOCK owned by  Reading &  Bates Offshore,
       Limited documented under  the laws  and flag  of the  United States  of
       America with Official  Number 562059 of 5,525 gross registered tons and
       1,657 net registered  tons; (ix) the jack-up drilling rig RANDOLPH YOST
       owned by the Owner  documented under  the laws and  flag of the  United
       States  of   America  with  Official  Number   601699  of  4,701  gross
       registered  tons  and  4,701  net  registered  tons;  (x)  the  jack-up
       drilling rig  J. T. ANGEL owned by the  Owner documented under the laws
       and flag of  the United States of  America with Official  Number 651645
       of 4,186 gross registered tons and 3,090  net registered tons; (xi) the
       jack-up drilling  rig ROGER  W. MOWELL  owned by  the Owner  documented
       under the laws and  flag of the United States of  America with Official
       Number 645360 of 4,121 gross  registered tons and 3,079  net registered
       tons; (xii)  the  jack-up drilling  rig  GEORGE  H. GALLOWAY  owned  by
       Reading &  Bates Offshore, Limited  documented under the  laws and flag
       of the  United States of America  with Official Number 651646  of 3,729
       gross registered tons  and 2,496 net  registered tons;  and (xiii)  the
       jack-up drilling rig C. E. THORNTON to be  owned by HRB Rig Corporation
       documented  under the laws  and flag  of the  United States  of America
       with Official  Number 673210 of  6,096 gross registered  tons and 6,096
       net registered tons;

       "Permitted  Liens"  means: (1)  liens incident  to expenses  of current
       operations, other than for master's  and crew's wages, incurred  in the
       ordinary course of  business of the Owner  and due and payable  for not
       more than thirty (30) days  (or being contested in good faith, provided
       such liens  are not in  excess of U.S.$5,000,000.00,  and if in  excess
       thereof, then  the  Owner  shall,  upon  the  written  request  of  the
       Administrative  Agent, provide a bond or other security satisfactory to
       the Administrative Agent);  (2) liens for master's and crew's wages not
       yet due  and payable;  (3) liens  for taxes, assessments,  governmental
       charges, fines and penalties not  at the time delinquent  (unless being
       contested  in  good faith,  provided such  liens are  not in  excess of
       U.S.$5,000,000.00,  and if  in excess  thereof,  then the  Owner shall,
       upon the  written request of  the Administrative Agent,  provide a bond
       or other security satisfactory to the  Administrative Agent); (4) liens
       for  general average  and  salvage  (including contract  salvage);  (5)
       liens for claims  covered by valid  policies of  insurance meeting  the
       requirements  of Clause 6  hereof (except that no  lien shall be deemed
       not covered by  insurance to the extent insurance  in force would cover
       the amount  secured  by the  lien  but  for any  applicable  deductible
       amount  approved  by  the  Administrative  Agent);  (6)  liens  arising
       pursuant to  any judgment or  to an order  of attachment, distraint  or
       similar legal  process arising  in connection  with legal  proceedings,
       but only if and  so long as the execution or  other enforcement thereof
       is  not unstayed for  more than 30 consecutive  days; (7)  any lien for
       the  payment or  discharge  of  which  provisions satisfactory  to  the
       Administrative Agent have  been made as evidenced by the Administrative
       Agent's written consent  to such  lien; (8) any  lien in  favor of  the
       Banks; and  provided that Permitted  Liens shall not  include any liens
       described in  subclauses (1)  through (7)  above unless  they: (i)  are
       subordinate to  the lien of this Mortgage or (ii) constitute a maritime
       lien  which would in any event be entitled as such to priority over the
       Mortgage under  the United  States  shipping laws  or other  applicable
       laws relating  to the Rig's trading  pattern.  Nothing  herein shall be
       deemed  a  waiver  of  the  priority  preferred  lien  status  of  this
       Mortgage;

       "Protection and  indemnity  risks" means  the  usual risks  covered  by
       protection   and   indemnity  associations   of   international  repute
       including the  proportion not  recoverable in  case of collision  under
       the ordinary running-down clause (unless such is recoverable  under the
       relevant hull and machinery coverage);

       "Required Banks" shall have the meaning  for such term as set forth  in
       the Credit Agreement;

       "Requisition  Compensation"  means all  moneys  or  other  compensation
       payable during the  Credit Facility Period by reason of requisition for
       title or  other compulsory  acquisition of  the Rig  otherwise than  by
       requisition for hire;

       "Rig" means the  vessel described in  Recital (A)  hereto and  includes
       any  share  or interest  therein  and  her engines,  machinery,  boats,
       tackle,  outfit,  spare   gear,  fuel,  consumable  or   other  stores,
       belongings and appurtenances  whether on  board or  ashore and  whether
       now owned  or hereafter acquired  (but excluding  therefrom any  leased
       equipment owned by third parties);

       "Secured Creditors" shall mean the  Banks, the Letter of  Credit Issuer
       and  the  Administrative Agent  under  and  as  defined  in the  Credit
       Agreement;

       "Security Documents" shall have  the same meaning for such term  as set
       forth in the Credit Agreement;

       "Security  Interest"  means  a  mortgage,   charge  (whether  fixed  or
       floating), pledge, lien, hypothecation,  assignment, trust arrangement,
       title retention or other security  interest or arrangement of  any kind
       whatsoever;

       "Taxes" shall have  the same meaning for such term  as set forth in the
       Credit Agreement;

       "Total Commitment"  shall have the  same meaning for  such term as  set
       forth in the Credit Agreement;

       "Total  Loss" means (a) the  actual, constructive, arranged, agreed, or
       compromised  total loss of  the Rig; (b)  the requisition  for title or
       other compulsory  acquisition or forfeiture of  the Rig  otherwise than
       by requisition  for hire; (c)  the capture, seizure, arrest,  detention
       or confiscation of  the Rig by any  government or by persons  acting or
       purporting  to act  on  behalf  of any  government  unless  the Rig  be
       released from  such capture, seizure, arrest or detention within ninety
       (90) days after the occurrence thereof;

       "United  States Dollars"  and "US$"  means the  lawful currency  of the
       United States of America;

       "Unpaid  Drawing"  shall have  the same  meaning for  such term  as set
       forth in the Credit Agreement;

       "War  Risks" includes the risk of mines and all risks excluded from the
       standard  form of  English marine  policy by  the free  of  capture and
       seizure clause.

2.02   Except  where  otherwise  expressly  provided  or  unless  the  context
       otherwise  requires,  words  and  expressions  defined  in  the  Credit
       Agreement shall bear the same meanings when used in this Mortgage.

2.03   In this Mortgage:

       (a)   Clause headings are inserted  for convenience only and shall  not
             affect  the construction  of this Mortgage  and, unless otherwise
             specified, all  references  to Clauses  are  to clauses  of  this
             Mortgage;

       (b)   unless  the  context  otherwise  requires,   words  denoting  the
             singular number shall include the plural and vice versa;

       (c)   references   to    persons   include    bodies   corporate    and
             unincorporated;

       (d)   references  to  assets include  property,  rights  and assets  of
             every description;

       (e)   references to any document are to  be construed as references  to
             such document as amended or supplemented from time to time; and

       (f)   references  to any  enactment  include re-enactments,  amendments
             and extensions thereof.

3.     MORTGAGE

3.01   In  order to secure the Obligations the Owner has granted, conveyed and
       mortgaged and does  by these presents  grant, convey and  mortgage unto
       the  Mortgagee,  its successors  and  assigns, in  accordance  with the
       provisions  of Chapter  V,  Title IV  of  Book Second  of  the Code  of
       Commerce  and  pertinent  provisions  of  the   Civil  Code  and  other
       legislation  of  the Republic  of  Panama, the  whole of  the  Rig, the
       detailed description of which is as follows:

             semi-submersible   drilling   rig    RIG   41;   gross    tonnage
             approximately  10,078; net  tonnage  approximately 3,024;  length
             overall 108.2 meters, breadth  67.36 meters; depth 36.58  meters;
             built in 1975 by  Bergens Mek. Versteder in Bergen, Norway; radio
             call letters HP-7970; 

       TO  HAVE AND TO HOLD  the same  unto the Mortgagee,  its successors and
       assigns forever, upon  the terms herein  set forth for  the enforcement
       of the Obligations.

       PROVIDED ONLY and the condition  of these presents is such that  if the
       Owner or its successors and assigns  shall pay or cause to be repaid to
       the Secured  Creditors and their  respective successors or assigns  the
       Obligations  as and  when  the same  shall  become due  and  payable in
       accordance  with the terms  of the Credit  Agreement and  this Mortgage
       and  the Owner and its successors  and assigns shall observe and comply
       with the  covenants,  terms  and conditions  contained  in  the  Credit
       Agreement  and this  Mortgage, expressed  or implied  to be  performed,
       observed  or complied with  by and  on the  part of  the Owner  and its
       successors and assigns, then  these presents  and the rights  hereunder
       shall cease, determine  and be void and,  in such event, the  Mortgagee
       agrees to furnish,  execute and  record, at the  expense of the  Owner,
       all such documents as  the Owner may   reasonably require to  discharge
       this Mortgage, otherwise to be and remain in full force and effect.

       Notwithstanding  anything to  the contrary  herein it  is  not intended
       that any provision  of this Mortgage  shall waive the  preferred status
       of this  Mortgage and  that  if any  provision or  part thereof  herein
       shall  be construed as  waiving the preferred  status of  this Mortgage
       then such provision shall to such extent be void and of no effect.

3.02   The Owner shall  remain liable to  perform all the  obligations assumed
       by  it in relation to  the Rig and none of  the Secured Creditors shall
       be under any obligation  of any kind  whatsoever in respect thereof  or
       be under any liability whatsoever in event of any  failure by the Owner
       to perform its obligations in respect thereof.

3.03   This Mortgage,  when it  shall have  been duly  executed and signed  on
       behalf of  the parties,  shall be  provisionally  recorded through  the
       Panamanian Consulate at New  York, New York and thereafter within three
       months permanently recorded in the Public Registry in Panama.

4.     PAYMENT COVENANTS

4.01   The Owner hereby covenants with the Secured Creditors:

       (a)   to   pay  and  indemnify  the  Secured  Creditors  for  all  such
             expenses,  claims,  liabilities,  losses,  costs,  duties,  fees,
             charges or  other moneys  as are  stated in  this Mortgage to  be
             payable by  the Owner  to or  recoverable from  the Owner  by the
             Secured  Creditors (or in  respect of which  the Owner  agrees in
             this Mortgage to indemnify any of  the Secured Creditors) at  the
             times and in the manner specified in this Mortgage;

       (b)   to  pay  interest  on  any such  expenses,  claims,  liabilities,
             losses,  costs, duties, fees, charges or other moneys referred to
             in Clause 4.01(a)  from the date on  which the  relevant expense,
             claim,  liability, loss, cost, duty,  fee, charge  or other money
             is  paid by  any  Secured Creditor  (both  before  and after  any
             relevant judgment) at the Default Rate; and

       (c)   to pay and perform its obligations which may be  or become due or
             owing to  any Secured Creditor,  as the  case may be,  under this
             Mortgage and the  Credit Agreement at the times and in the manner
             specified herein or therein.

5.     PRESERVATION OF SECURITY

5.01   It is declared and agreed that:

       (a)   the  security created  by  this Mortgage  shall  be  held by  the
             Mortgagee  as a  continuing security for  the performance  of the
             Obligations  and  that  the security  so  created  shall  not  be
             satisfied  by  any intermediate  payment or  satisfaction  of any
             part of the Obligations;

       (b)   the security so created shall be in addition to  and shall not in
             any  way be prejudiced  or affected by any  of the other Security
             Documents;

       (c)   the  Mortgagee shall  not  have to  wait  for the  Administrative
             Agent  to enforce  any  of the  other  Security Documents  before
             enforcing the security created by this Mortgage;

       (d)   no failure or delay  on the part  of the Mortgagee in  exercising
             any right, power, privilege  or remedy hereunder and no course of
             dealing between Owner and  Mortgagee or the Administrative  Agent
             shall  operate as  a  waiver thereof;  nor  shall  any single  or
             partial  exercise  of  any  right,  power,  privilege  or  remedy
             hereunder preclude any other or  further exercise thereof or  the
             exercise of any other right, power  or privilege hereunder.   The
             rights and remedies herein expressly provided  are cumulative and
             not exclusive of  any rights or  remedies which the  Mortgagee or
             the Administrative Agent would otherwise have.   No notice to  or
             demand on the Owner  in any case shall  entitle the Owner to  any
             other  or   further  notice  or   demand  in  similar  or   other
             circumstances  or  constitute  a  waiver  of the  rights  of  the
             Mortgagee  or the Administrative  Agent to  any other  or further
             action in any circumstances without notice or demand; and

       (e)   any waiver by the Mortgagee of any terms of  this Mortgage or any
             consent given by the  Mortgagee under this Mortgage shall only be
             effective  if given in writing and then  only for the purpose and
             upon the terms for which it is given.

5.02   Any  settlement or discharge under  this Mortgage between the Mortgagee
       and the Owner shall be  conditional upon no security or payment  to the
       Secured  Parties or  any of  them by  the Credit  Parties or  any other
       person being  avoided or set-aside or ordered to be refunded or reduced
       by  virtue of  any  provision  or  enactment  relating  to  bankruptcy,
       insolvency, administration or  liquidation for the time being  in force
       and,  if  such  condition is  not  satisfied,  the  Mortgagee  shall be
       entitled  to  recover  from  the  Owner on  demand  the  value  of such
       security or  the amount of  any such payment as  if such  settlement or
       discharge had not occurred.

5.03   The  rights  of  the Secured  Creditors  under  this  Mortgage  and the
       security  hereby   constituted  shall  not  be  affected  by  any  act,
       omission, matter or thing  which, but for this provision, might operate
       to  impair, affect or discharge  such rights and  security, in whole or
       in  part, including without limitation, and whether  or not known to or
       discoverable by the Credit  Parties, the Secured Creditors or any other
       person:

       (a)   any waiver granted to or composition  with the Credit Parties  or
             any other person; or

       (b)   the  taking,  variation, compromise,  renewal  or  release of  or
             refusal or neglect to  perfect or enforce any rights, remedies or
             securities  against  any  of  the  Credit Parties  or  any  other
             persons; or

       (c)   any   legal   limitation,   disability,   incapacity   or   other
             circumstances  relating  to  the  Credit  Parties  or  any  other
             person; or

       (d)   any amendment or supplement to the  Credit Agreement, any of  the
             other Credit Documents or any other document or security; or

       (e)   the  dissolution,  liquidation,  amalgamation,  reconstruction or
             reorganization of any of  the Credit Parties or any other person;
             or

       (f)   the   unenforceability,   invalidity   or   frustration   of  any
             obligations  of the Credit  Party or any  other person  under the
             Credit Agreement, any of  the other Credit Documents or any other
             document or security.

6.     INSURANCE

6.01   The Owner covenants  with the Mortgagee throughout the  Credit Facility
       Period that:

       (a)   The Owner  shall, at its  own expense,  when and  so long as  any
             Obligation  remains  outstanding, insure  the  Rig  and keep  her
             insured,  or cause the Rig to be  insured, in lawful money of the
             United  States,  in  such  amounts,  for  such  risks  (including
             without   limitation,   hull   and   machinery/increased   value,
             Protection  and Indemnity  Risks,  pollution  liability, and  War
             Risks), in such form  (including without limitation, the  form of
             the loss payable  clause and the designation  of named  assureds)
             and  with  such first  class  insurance companies,  underwriters,
             funds,  mutual  insurance  associations  or clubs,  as  shall  be
             reasonably  satisfactory  to  the  Administrative  Agent.    With
             respect   to  hull   and  machinery/increased   value  insurance,
             including war risk, the Owner shall  insure the Rig and keep  her
             insured, or cause the Rig  to be insured, for an amount  which is
             at least  the agreed value  of the Rig, and  when such  amount is
             aggregated  with the total amount  of such  insurance coverage on
             the Other Rigs,  such aggregate amount shall be  at least 110% of
             the aggregate  amount of  the Total  Commitment.  Such  insurance
             shall cover marine  and war risk  perils, on hull  and machinery,
             with  per  occurrence deductibles  not  in  excess of  US$500,000
             (such  deductibles not to apply in the  case of Total Loss of the
             Rig), and shall be  maintained in the broadest forms available in
             the  American, British  and Scandinavian insurance  markets or in
             such  other  major  international   markets  acceptable  to   the
             Mortgagee.   The  Owner shall  maintain protection  and indemnity
             insurance, including  war risk protection and  indemnity coverage
             and coverage against  pollution liability, in an amount  not less
             than  US$100,000,000 (or,  with  respect to  pollution  liability
             coverage, such  greater amount as may be at least equal from time
             to time to the limitation of  liability amount applicable to  the
             Rig  under the  Oil  Pollution Act  1990  or other  Environmental
             Laws), through  underwriters  or associations  acceptable to  the
             Mortgagee.   In addition,  the Owner shall,  at its  own expense,
             furnish  to   the  Administrative  Agent   a  mortgagee's  single
             interest policy  providing coverage  which, when aggregated  with
             the   mortgagee's    interest   insurance   furnished    to   the
             Administrative Agent in  respect of the  Other Rigs, shall  be in
             an amount equal to at  least 110% of the Total Commitment  (or in
             lieu  of such  mortgagee's interest  insurance Owner  shall cause
             the hull and machinery/increased  value insurance to be  endorsed
             to  afford breach  of warranty  coverage for  the benefit  of the
             Administrative Agent).   Such mortgagee's interest  insurance and
             any  additional  insurance  policies  for  the   benefit  of  the
             Administrative  Agent shall  be maintained  in the  broadest form
             available  in the  American, British and  Scandinavian markets or
             other   major    international   markets   acceptable    to   the
             Administrative  Agent  through  underwriters  acceptable  to  the
             Administrative Agent.   The Rig shall  not operate in  or proceed
             into  any area  then  excluded by  trading  warranties under  its
             marine or war risk policies (including  protection and indemnity)
             without  satisfying  the  conditions  of  the  relevant  policies
             evidence of which shall be furnished to the Mortgagee.

       (b)   The  policy  or   policies  of  insurance  shall  be   issued  by
             responsible   underwriters    reasonably   acceptable    to   the
             Administrative    Agent,   shall   contain   conditions,   terms,
             stipulations   and  insuring   covenants   satisfactory  to   the
             Administrative Agent, and shall  be kept in full force and effect
             by the Owner  so long as the  Security Documents and  the Secured
             Indebtedness  shall be  outstanding.  All  such policies, binders
             and  other  interim insurance  contracts  shall  be executed  and
             issued  in  the  name  of  the Owner  and  shall,  to  the extent
             required  herein, provide  that the Mortgagee  shall be  the loss
             payee for distribution by it to  itself, the Banks and the  Owner
             as  their interests may  appear, and shall  provide for  at least
             ten  days' prior  notice to  be  given to  the  Mortgagee by  the
             underwriters or association in  the event of cancellation  or the
             failure of  the Owner  to  pay any  premium or  call which  would
             suspend coverage  under the  policy  or the  payment  of a  claim
             thereunder.  The  Mortgagee and the Banks  shall be named  as co-
             assureds  on  all  such  policies and  insurance  contracts,  but
             without liability of the  Mortgagee, or the Banks for premiums or
             calls.  Complete  certified copies of all such  policies, binders
             and other interim insurance  contracts shall be delivered to  the
             Mortgagee.  Originals shall  also be provided upon the request of
             the  Mortgagee.    The  Owner  shall  furnish  to  the  Mortgagee
             annually a detailed report signed by  a firm of marine  insurance
             brokers  satisfactory  to  the  Mortgagee  as  to  the  insurance
             maintained in respect  of the Rig, as to their  opinion as to the
             adequacy thereof  and as  to  compliance with  the provisions  of
             this Clause 6.01.

             Unless  otherwise  required by  the Mortgagee,  by notice  to the
             underwriters, although the following insurance is  payable to the
             Mortgagee, (i)  any loss  under  any insurance  on  the Rig  with
             respect to Protection  and Indemnity Risks may  be paid  directly
             to the  Owner to  reimburse it for  any loss,  damage or  expense
             incurred  by it and covered by such insurance or to the person to
             whom any liability covered  by such  insurance has been  incurred
             and  (ii) in the case  of any loss (other  than a loss covered by
             (i) above  or by  the  next following  paragraph  of this  Clause
             6.01(b))  under any  insurance with respect  to the Rig involving
             any damage to the Rig, the underwriters  may pay directly for the
             repair, salvage or other  charges involved or, if the Owner shall
             have first  fully repaired  the  damage or  paid  the salvage  or
             other  charges,  may pay  the  Owner  as reimbursement  therefor;
             provided,  however,  that  if  such  damage   involves  a  before
             deductible  loss in  excess of US$1,000,000.00  (One Million U.S.
             Dollars),  the underwriters  shall not make  such payment without
             first  obtaining  the written  consent thereto  of  the Mortgagee
             (which  consent shall  not be  unreasonably withheld).   Any loss
             covered  by this  paragraph which  is paid  to the  Mortgagee but
             which might have been  paid, in accordance with the provisions of
             this paragraph, directly  to the Owner  or others, shall  be paid
             by  the Mortgagee to, or as directed  by, the Owner and all other
             payments to  the Mortgagee  of losses  covered by  this paragraph
             shall  be  applied by  the  Mortgagee in  accordance  with Clause
             10.01.

             In  the event of  a Total Loss,  all insurance  payments therefor
             shall be paid to the  Mortgagee.  The Owner shall not  declare or
             agree with the underwriters that the Rig  is a Total Loss without
             the prior written consent of the Mortgagee.

       (c)   In  the event of  a Total  Loss of the  Rig, the  Mortgagee shall
             retain out of the  insurance payments received on account of such
             loss  any  sum or  sums  that shall  be  or become  owing  to the
             Secured  Creditors under  the Security Documents,  whether or not
             the  same shall be  then due and  payable, together  with accrued
             interest and the cost, if any,  of collecting the insurance,  and
             pay the balance as provided in Clause 10.

       (d)   The Owner shall comply with and satisfy  all of the provisions of
             any applicable law, regulation, proclamation  or order concerning
             financial responsibility for liabilities imposed on  the Owner or
             the Rig with respect  to the carriage of passengers or pollution,
             and will maintain,  or cause  to be maintained,  all certificates
             or other  evidence of financial responsibility as may be required
             by  any such law, regulation, proclamation  or order with respect
             to the trade in which the Rig from time to time is engaged.

       (e)   The Owner shall renew all  such insurances as they expire  and so
             as  to insure  that  there  is  no  gap  in  coverage,  keep  the
             Mortgagee advised  of the  progress of  such renewals, and  shall
             provide evidence of such renewal in  writing to the Mortgagee  as
             and when each such renewal is effected.

       (f)   The   Owner   shall   punctually   pay   all   premiums,   calls,
             contributions  or  other sums  payable  in  respect of  all  such
             insurances and produce all relevant receipts when so  required by
             the Mortgagee.

       (g)   The Owner shall arrange for the  execution of such guarantees  as
             may  from  time  to  time  be  required  by  any  protection  and
             indemnity or war risks association.

       (h)   The  Owner  shall not  employ the  Rig or  suffer  the Rig  to be
             employed  otherwise than  in  conformity with  the  terms of  the
             instruments  of   insurance   aforesaid  relative   to  the   Rig
             (including any  warranties, express or implied,  therein) without
             first obtaining  the consent to such  employment of  the insurers
             and  complying with  such  requirements as  to  extra premium  or
             otherwise as the insurers may prescribe.

7.     RIG COVENANTS

7.01   The  Owner covenants  with  the Mortgagee  that  throughout the  Credit
       Facility Period the Owner will:

       (a)   keep the Rig documented in  its name as a Panamanian  flag vessel
             and  do or allow  to be done  nothing whereby  such documentation
             may be forfeited or imperilled;

       (b)   not without  the previous  consent  in writing  of the  Mortgagee
             except as otherwise contemplated by the  Credit Agreement, change
             the  name of the Rig  or make  any modification to  the Rig which
             would  materially  alter  the  structure,   type  or  performance
             characteristics of the Rig and which would materially reduce  the
             value of the Rig;

       (c)   keep the Rig in a  good and efficient state of  repair consistent
             with first-class ship-ownership and  management practice employed
             by owners of drilling rigs of similar  size and type and so as to
             maintain  her  present  class  (namely   +1A1  Column  Stabilized
             Drilling Unit) at Det Norske Veritas  free of recommendations and
             qualifications  and  change  of  class, save  those  approved  in
             writing by the  Mortgagee and so as to comply with all applicable
             laws,  treaties and  conventions of  the  Republic of  Panama and
             other applicable jurisdictions, and rules  and regulations issued
             thereunder, and have on  board as and when required thereby valid
             certificates showing compliance therewith;

       (d)   procure that all repairs to or  replacement of any damaged,  worn
             or  lost parts  or  equipment in  such  manner  (both as  regards
             workmanship  and  quality  of  materials) as  to  not  materially
             diminish  the value  of the  Rig and  not to  remove any material
             part of, or item  of equipment owned  by the Owner installed  on,
             the  Rig unless  (i) the  part or  item  so removed  is forthwith
             replaced by  a  suitable  part  or item  which  is  in  the  same
             condition as or better condition than  the part or item  removed,
             is free from  any Security Interest (other  than Permitted Liens)
             in favor of  any person other  than the Mortgagee and  becomes on
             installation on  the Rig the property of the Owner and subject to
             the  security constituted  by this  Mortgage or  (ii) the removal
             will not materially diminish the value of the Rig;

       (e)   submit  the Rig  to such  periodical or  other surveys  as may be
             required  for  classification  purposes  and if  so  required  to
             supply to the  Mortgagee copies of  all survey reports  issued in
             respect thereof;

       (f)   permit the  Mortgagee by independent  surveyors to board the  Rig
             at  all  reasonable  times and  upon  reasonable  notice for  the
             purpose  of  inspecting  her  condition  or  for the  purpose  of
             satisfying themselves in regard  to proposed or executed  repairs
             and  to  afford  all  proper  facilities  for  such  inspections,
             provided that unless an  Event of Default shall have occurred and
             be continuing,  the cost of any such  inspection shall be for the
             account of the Mortgagee;

       (g)   promptly  pay and  discharge all  debts, damages  and liabilities
             whatsoever which  have given  or  may give  rise  to maritime  or
             possessory  liens  (other  than  Permitted Liens)  on  or  claims
             enforceable  against  the  Rig   and  all  tolls,  dues,   taxes,
             assessments, governmental charges,  fines and penalties  lawfully
             charged on  or  in respect  of  the Rig  and all  other  expenses
             whatsoever in respect of  the Rig and in  the event of arrest  of
             the  Rig  pursuant  to legal  process,  or in  the  event  of her
             detention in exercise or purported exercise  of any such lien  or
             claim  as aforesaid,  procure the  release of  the Rig  from such
             arrest  or detention  forthwith upon receiving  notice thereof by
             providing bail or otherwise as the circumstances may require;

       (h)   not  employ the  Rig or  allow  her employment  in  any trade  or
             business which  is  unlawful  under  the  laws  of  any  relevant
             jurisdiction or  in carrying  illicit or  prohibited goods or  in
             any manner whatsoever which can reasonably be  expected to render
             her liable to  destruction, seizure  or confiscation  and in  the
             event of hostilities  in any part  of the world  (whether war  be
             declared or not) not  employ the Rig or suffer her  employment in
             carrying  any contraband goods  or to enter or  trade to any zone
             which is  declared a war  zone by  any government  or by the  War
             Risks insurers of the Rig unless  there shall have been  effected
             by the  Owner  (at  its  expense)  such  special,  additional  or
             modified  insurance  cover  as   the  Mortgagee  may   reasonably
             require;

       (i)   promptly furnish to the  Mortgagee all such information as it may
             from  time to  time require  regarding the  Rig,  her employment,
             position  and  engagements,   particulars  of  all   towages  and
             salvages and,  upon  the request  of  the Mortgagee  in  writing,
             copies of all charters  and other contracts for her employment or
             otherwise howsoever concerning her;

       (j)   notify the  Mortgagee forthwith by  telecopy thereafter confirmed
             by letter of:

             (i)  any casualty to the Rig which is or  is likely to be a Major
                  Casualty; and

             (ii)    any occurrence in consequence whereof  the Rig has become
                     or  is, by the  passing of  time or otherwise,  likely to
                     become a Total Loss; and

             (iii)   any requirement or recommendation made  by any insurer or
                     classification  society  or  by any  competent  authority
                     which is not complied with; and

             (iv)    any  arrest  of  the  Rig or  the  exercise  or purported
                     exercise of any lien on the Rig or any requisition of the
                     Rig for hire; and

             (v)  any intended dry docking  of the Rig, as to  which the Owner
                  shall give  the Mortgagee  30 days  prior notice,  provided,
                  that in the  event of any emergency dry docking  of the Rig,
                  the Owner shall immediately notify the Mortgagee; and

             (vi)    any intended  deactivation or  lay-up of  the Rig  (other
                     than for  normal periods of  inactivity between contracts
                     for the Rig during which periods  the Rig remains manned)
                     and obtain the prior written consent of the Mortgagee;

       (k)   keep  proper books  of account in  respect of the  Rig and as and
             when  the Mortgagee  may so  reasonably require  make such  books
             available  for inspection on behalf  of the Mortgagee and furnish
             satisfactory  evidence  that the  wages  and  allotments and  the
             insurance  of the master  and crew are  being regularly  paid and
             that all deductions  from crew's wages  in respect of  tax and/or
             social  security liability  are being properly  accounted for and
             that the master has no claim  for disbursements other than  those
             incurred by  him in the ordinary course of  trading on the voyage
             then in progress;

       (l)   observe  the obligations  contained in  Sections 7  and 8  of the
             Credit Agreement which  apply to the  Rig and  the Owner, and  in
             pursuance thereof such obligations  shall be incorporated in  and
             deemed to form part of this Mortgage mutatis mutandis;

       (m)   not  without the  previous  consent in  writing of  the Mortgagee
             (such consent not to  be unreasonably withheld), put the Rig into
             the possession of any person for  the purpose of work being  done
             upon her  in an amount exceeding or likely  to exceed Two Million
             Five  Hundred  United States  Dollars  (US$2,500,000.00) (or  the
             equivalent in any other  currency) unless  (i) such person  shall
             first have given  to the Mortgagee  and in terms  satisfactory to
             it  a written undertaking not to exercise any lien on the Rig for
             the cost of such work or otherwise or (ii)  the cost of such work
             shall be fully covered by applicable insurance;

       (n)   comply with  and satisfy  all the provisions  of applicable  laws
             and  regulations  of  the Republic  of  Panama,  as  at  any time
             amended, in order  to establish and  maintain this Mortgage  as a
             first priority naval mortgage  thereunder upon  the Rig and  upon
             all  renewals, improvements  and replacements made  in or  to the
             same, and promptly to furnish to the Mortgagee from  time to time
             such  proofs as  the Mortgagee  may request  for its satisfaction
             with respect to the compliance by  the Owner with the  provisions
             of this  sub-clause, including, appropriate  certificates of  the
             Public  Registry  showing  that  this  Mortgage   has  been  duly
             registered  and filed  and is  a first  and absolute lien  on the
             Rig;

       (o)   place,  and use  due diligence  to  retain, a  properly certified
             copy of this Mortgage on board the Rig with  her papers and cause
             such certified copy of  this Mortgage to be exhibited to  any and
             all persons having  business with the  Rig which might  give rise
             to  any lien  thereon  other than  a lien  for  crew's wages  and
             salvage and to any  representative of the Mortgagee on demand and
             to place and  keep prominently displayed in the chart room and in
             the master's cabin of  the Rig a framed  printed notice in  plain
             type  in English  of  such size  that  the  paragraph of  reading
             matter shall  cover a space  not less  than 6  inches wide and  9
             inches high reading as follows:

                                         "NOTICE OF MORTGAGE

                  This Rig  is subject to an Indenture of First Naval Mortgage
             in favor of CHRISTIANIA  BANK OG KREDITKASSE, NEW YORK BRANCH, as
             Administrative Agent for the  Banks defined in said Mortgage,  in
             conformity  with the provisions  of Chapter V,  Title IV  of Book
             Second of the Code of Commerce,  and the pertinent provisions  of
             the Civil Code and other legislation  of the Republic of  Panama.
             Under  the  terms  of  said  Mortgage   neither  the  owner,  any
             charterer, the Master of the Rig nor any other person shall  have
             the  right, power or authority  to create, incur  or permit to be
             placed  upon the  Rig any  other lien  whatsoever other  than for
             current crew's  wages and  salvage and  Permitted Liens (as  that
             term is defined in said Mortgage)."

       (p)   comply,  or procure  compliance with, all  Environmental Laws and
             Environmental  Approvals relating  to the  Rig, its  operation or
             management and the business of the Owner from time to time;

       (q)   notify the Mortgagee forthwith upon:

             (i)  any Environmental  Claim which could reasonably  be expected
                  to result in damages in  excess of US$200,000 being or  made
                  against the Owner, or otherwise in connection with  the Rig;
                  or

             (ii) any   Environmental  Incident   occurring,   and  keep   the
                  Mortgagee advised,  in  writing  on  such regular  basis and
                  in  such detail  as  the  Mortgagee   shall require,  of the
                  Owner's   response   to    such    Environmental  Claim   or
                  Environmental Incident.

       (r)   not sell, mortgage or transfer the  Rig (other than as  permitted
             by the  Credit  Agreement) without  the  written consent  of  the
             Mortgagee  having  first  been  obtained, and  any  such  written
             consent to any one such  sale, mortgage or transfer shall not  be
             construed to  be a waiver  of this provision with  respect to any
             subsequent proposed sale,  mortgage or transfer.   Any such sale,
             mortgage or transfer shall be subject  to the provisions of  this
             Mortgage  and the lien it  creates.  The  Owner shall not charter
             the Rig to, or permit  the Rig to serve under any  contract with,
             a person included  within the definition  of (i) "national"  of a
             "designated foreign country," or  "specially designated national"
             of  a "designated foreign country," in the Foreign Assets Control
             Regulations  or  the  Cuban  Assets Control  Regulations  of  the
             United States Treasury  Department, 31 C.F.R. Parts 500  and 515,
             in each case as amended, (ii)  "Government of Libya", "entity  of
             the  Government  of  Libya"  or  "Libyan  entity" in  the  Libyan
             Sanctions Regulations of  the United States Treasury  Department,
             31 C.F.R. Part  550, as amended,  or (iii) "Government  of Iraq",
             "entity of the  Government of Iraq" or "Iraqi  Government entity"
             in the Iraqi Sanctions Regulations, 56  Fed. Reg. 2112 (1991)  to
             be codified  at 31 C.F.R.  Part 575, as  amended, all within  the
             meaning   of   said   Regulations   or    of   any   regulations,
             interpretations  or rulings  issued thereunder, or  sail in Cuban
             waters or enter any Cuban  port for any purpose or engage  in any
             transaction  that violates  any provision of  said Regulations or
             that  violates   any  provision   of  the   Iranian  Transactions
             Regulations, 31 C.F.R.  Part 560, as amended,  the Foreign  Funds
             Control  Regulations,  31  C.F.R.  Part  520,   as  amended,  the
             Transaction Control Regulations, 31 C.F.R. Part  505, as amended,
             the  Haitian  Transaction Regulations,  31  C.F.R.  Part 580,  as
             amended, the Foreign Assets  Control Regulations, 31 C.F.R.  Part
             500,  as amended, or  Executive Orders 12810  and 12831;  if such
             transaction  or violation  would (i) expose  the Mortgagee to any
             penalty,  sanction or  investigation or (ii)  jeopardize the lien
             created by this Mortgage  or (iii) have a material adverse effect
             on the Owner or the operation of the Rig;

       (s)   shall not cause or  permit the Rig to  be operated in any  manner
             contrary   to  law  (except  where  the  failure  to  operate  in
             compliance with any law  would not have a material adverse effect
             on the Owner, the  Rig or the lien  of this Mortgage), shall  not
             abandon  the Rig  in a foreign  port and shall  not engage in any
             unlawful trade or violate  any law or carry any cargo  that shall
             expose the Rig to forfeiture or capture.

8.     PROTECTION OF SECURITY

8.01   The Mortgagee shall  without prejudice to  its other rights  and powers
       under  this Mortgage and  the other Credit  Documents be  entitled (but
       not bound)  at any time and as often as may be necessary (but unless an
       Event of  Default shall  have  occurred and  be  continuing with  prior
       written notice to the Owner)  to take any such action as it may  in the
       reasonable  exercise of  its discretion  think fit  for the  purpose of
       protecting or  maintaining the  security created by  this Mortgage  and
       the other Credit Documents (including, without  limitation, such action
       as  is  referred  to  in  Clause 8.02)  and  each  and  every  expense,
       liability,  or loss  (including, without  limitation, reasonable  legal
       fees) so incurred by the Secured  Creditors in or about the  protection
       or  maintenance of  the said  security  together with  interest payable
       thereon under Clause 4.01(b) shall  be repayable to it by the  Owner on
       demand.

8.02   Without prejudice to the generality of Clause 8.01:

       (a)   if  the Owner does  not comply in  any material  respect with the
             provisions  of Clause 6  or any  of them  the Mortgagee  shall be
             entitled (but  not bound) to effect  or to replace and  renew and
             thereafter to maintain the Insurances in  such manner it, in  its
             discretion,  may  think fit  and  to require  that  all policies,
             contracts  and   other   records  relating   to  the   Insurances
             (including details  of any correspondence  concerning outstanding
             claims) be forthwith  delivered to such brokers  as the Mortgagee
             may  nominate  and,  upon  the  direction  of  the  Mortgagee  to
             collect, recover,  compromise and give  a good discharge for  all
             claims   then  outstanding   or  thereafter   arising  under  the
             Insurances  or any  of them  and to  take  over or  institute (if
             necessary using the  name of the  Owner) all such  proceedings in
             connection   therewith  as   the   Mortgagee  in   its   absolute
             discretion, may think fit  and to permit the brokers through whom
             the  collection  or  recovery  is effected  to  charge  the usual
             brokerage therefor;

       (b)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(d)  or  7.01(f) the  Mortgagee  shall be  entitled  (but not
             bound) to arrange for the carrying out of such repairs  to and/or
             surveys of the Rig as it deems expedient or necessary; and

       (c)   if  the Owner  does  not comply  with  the  provisions of  Clause
             7.01(h) the Mortgagee  shall be entitled  (but not bound)  to pay
             and  discharge all such  debts, damages  and liabilities  and all
             such  tolls, dues, taxes,  assessments, charges, fines, penalties
             and other outgoings as are therein  mentioned and/or to take  any
             such measures as it  deems expedient or necessary for the purpose
             of securing the release of the Rig.

9.     ENFORCEABILITY AND MORTGAGEE'S POWERS

9.01   Upon  the happening of any  of the  Events of Default  specified in the
       Credit Agreement  but without  the  necessity for  any  court order  or
       declaration in any jurisdiction to the effect  that an Event of Default
       has  occurred (and whether prior to or after the Mortgagee or the Banks
       having  served  on the  Owner  any such  notice  as is  referred  to in
       Section  9 of the  Credit Agreement) the  security constituted  by this
       Mortgage shall become immediately  enforceable and the Mortgagee  shall
       be  entitled, as  and  when it  may  see  fit, to  put  into force  and
       exercise all or any  of the powers possessed by it as  mortgagee of the
       Rig or otherwise and in particular:

       (a)   to  exercise  all the  rights  and  remedies  in foreclosure  and
             otherwise  given to  mortgagees by  the laws  of the  Republic of
             Panama or other applicable laws;

       (b)   to  take possession of the Rig whether actually or constructively
             and/or  otherwise to take control of the Rig wherever the Rig may
             be and cause  the Owner or any other person  in possession of the
             Rig forthwith upon demand  to surrender the same to the Mortgagee
             without legal process and without liability of the Mortgagee  for
             any  losses or  damages incurred  thereby  and without  having to
             render accounts to the Owner in connection therewith;

       (c)   to  require that  all policies, contracts,  certificates of entry
             and other records relating  to the Insurances (including  details
             of   and  correspondence   concerning   outstanding  claims)   be
             forthwith delivered to or to the order of the Mortgagee;

       (d)   to collect, recover, compromise  and give a good discharge for or
             procure that the Mortgagee collect, recover,  compromise and give
             good discharge for any  and all moneys or claims for  moneys then
             outstanding  or thereafter  arising under  the Insurances  or any
             Requisition Compensation and to  permit any brokers through  whom
             collection  or recovery is effected to charge the usual brokerage
             therefor;

       (e)   to  take over  or institute (if  necessary using the  name of the
             Owner)  all such  proceedings  in connection  with  the Rig,  the
             Insurances, or any Requisition  Compensation as the Mortgagee  in
             its  absolute discretion  thinks fit and  to discharge, compound,
             release or compromise claims  against the Owner in respect of the
             Rig which have given  or may give rise  to any charge or  lien on
             the  Rig  or  which are  or  may  be  enforceable  by proceedings
             against the Rig;

       (f)   to sell  the  Rig or  any  share therein  with  or without  prior
             notice to the  Owner free from  any claim of or  by the Owner  of
             any  nature whatsoever, and  with or without  the benefit  of any
             charterparty  or  other contract  for her  employment,  by public
             auction  or private contract  at such place  and upon  such terms
             (including,  without limitation,  on terms  such that  payment of
             some or  all of the purchase price be  deferred) as the Mortgagee
             in its absolute discretion may  determine with power to  postpone
             any such sale,  without being answerable for any  loss occasioned
             by  such  sale or  resulting  from  postponement thereof,  and/or
             itself to purchase the Rig  at any such public auction and to set
             off  the  purchase  price  against  all   or  any  part  of   the
             Obligations,  subject to  notice  of  sale  being  given  by  the
             Mortgagee to the  Owner and other  mortgagees of record,  if any,
             by  airmail,  postage  pre-paid  and  by publication  once  in  a
             newspaper  of general circulation in the City of Panama, Republic
             of Panama, not  less than twenty (20) calendar days in advance of
             the sale, to satisfy  the requirement of notice of sale contained
             in  Article 1527  of the Panama  Code of  Commerce.   Such notice
             shall be necessary only in respect of the initial date of sale;

       (g)   to manage, insure,  maintain and repair  the Rig and  to charter,
             employ, sail or lay  up the Rig in  such manner, upon such  terms
             and for such period as the  Mortgagee in its absolute  discretion
             deems  expedient  and for  the purposes  aforesaid  the Mortgagee
             shall  be  entitled  to do  all  acts  and  things  incidental or
             conducive   thereto  and   in  particular  to   enter  into  such
             arrangements respecting the Rig,  and the insurance,  management,
             maintenance, repair,  classification, chartering and   employment
             of the Rig, in  all respects as if  the Mortgagee were the  owner
             of  the Rig and  without being responsible  for any  loss thereby
             incurred;

       (h)   to recover from the  Owner on demand any expenses, liabilities or
             losses  as  may be  incurred  by the  Mortgagee  in or  about the
             exercise   of   the  power   vested   in   the  Mortgagee   under
             Clause 9.01(g);

       (i)   generally,  to recover from  the Owner on  demand each  and every
             expense, liability or loss  incurred by the Mortgagee in or about
             or  incidental  to  the  exercise by  it  of  any  of  the powers
             aforesaid.

9.02   The Mortgagee  shall not  be  obliged to  make any  enquiry  as to  the
       nature  or sufficiency  of  any  payment  received  by  it  under  this
       Mortgage or to make  any claim, take any  action or enforce any  rights
       and benefits assigned  to the Mortgagee  by this Mortgage  or to  which
       the Mortgagee may at any time be entitled hereunder.

9.03   Neither  the Secured  Creditors nor  their agents,  managers, officers,
       employees,  delegates and  advisers shall  be liable  for any  expense,
       claim, liability, loss, cost,  damage or expense incurred or arising in
       connection  with the  exercise  or purported  exercise  of any  rights,
       powers  and discretions  under this  Mortgage in  the absence  of gross
       negligence or wilful misconduct.

9.04   The Mortgagee shall  not by reason of the taking  possession of the Rig
       be  liable to account as mortgagee-in-possession or for anything except
       actual  receipts or be liable for any  loss upon realization or for any
       default  or  omission  for  which a  mortgagee-in-possession  might  be
       liable.

9.05   Upon any  sale of  the Rig or  any share  therein by the  Mortgagee the
       purchaser  shall not  be bound to  see or enquire  whether the power of
       sale  of  the Mortgagee  has  arisen  in the  manner  provided in  this
       Mortgage and the  sale shall be  deemed to be within  the power of  the
       Mortgagee and  the receipt  of  the Mortgagee  for  the purchase  money
       shall effectively  discharge the purchaser who  shall not  be concerned
       with the manner of  application of the  proceeds of sale  or be in  any
       way answerable therefor.

10.    APPLICATION OF MONEYS

10.01  (a)   All moneys  received  by  the  Mortgagee  or  any  other  Secured
             Creditor,  including, without  limitation, in respect  of sale of
             the Rig or  any part thereof,  in respect of  recovery under  the
             Insurances, or in respect  of Requisition Compensation, shall  be
             applied in the following manner:

             (i)   first, to the payment of all amounts owing the Mortgagee of
                   the  type  described  in  clauses (ii) and (iii) of Recital
                   (E);

             (ii)  second, to the extent moneys remain after  the  application
                   pursuant to the preceding  clause  (i), an  amount equal to
                   the outstanding Obligations  shall  be  paid to the Secured
                   Creditors  as  provided   in  Clause  10.01(c),  with  each
                   Secured  Creditor   receiving   an  amount  equal  to  such
                   Obligations   held  by   it   or,   if  the  proceeds   are
                   insufficient to  pay  in full all such Obligations, its Pro
                   Rata Share (as  defined  below) of the  amount remaining to
                   be distributed; and

             (iii) third, to the extent moneys  remain after the application
                   pursuant  to  the  preceding  clauses  (i)  and  (ii),  and
                   following the  termination  of  this Mortgage  pursuant  to
                   Clause  3.01, any surplus then remaining  shall  be paid to
                   the Owner, subject,  however, to  the  rights of the holder
                   of  any then  existing Lien  of  which  the  Mortgagee  has
                   actual notice (without investigation).

       (b)   For purposes of this Mortgage "Pro  Rata Share" shall mean,  when
             calculating a Secured Creditor's  portion of any distribution  or
             amount in respect of  any Obligations, the amount (expressed as a
             percentage)  equal to a  fraction the numerator  of which  is the
             then unpaid amount of such  Obligations owing to or held by  such
             Secured  Creditor and  the  denominator  of  which  is  the  then
             outstanding  amount of  all such  Obligations.   For purposes  of
             determining  the  amount payable  to each  Secured  Creditor, the
             Mortgagee shall be  entitled to request each  Secured Creditor to
             furnish it with written  notice of the amount of Obligations then
             owed to  it  and shall  be entitled  to  reply upon  the  amounts
             stated therein in making such distribution.

       (c)   All payments required to  be made to Secured  Creditors hereunder
             shall be  made  to  the Administrative  Agent  under  the  Credit
             Agreement for the account of the Secured Creditors.

       (d)   For  purposes of  applying payments  received in  accordance with
             this Clause 10.01, the  Mortgagee shall be entitled to reply upon
             (i) the  Administrative Agent under the Credit Agreement and (ii)
             the   Secured   Creditors   for   a   determination   (which  the
             Administrative  Agent  and   each  Secured  Creditor,  by   their
             acceptance of  the benefits  of this Mortgage  shall be obligated
             to provide  upon request  of  the Mortgagee)  of the  outstanding
             Obligations owed to the  Secured Creditors.  Unless it has actual
             knowledge  (including by  way of  written notice  from a  Secured
             Creditor)  to the  contrary, the  Administrative Agent  under the
             Credit  Agreement,  in  furnishing  information  pursuant  to the
             preceding  sentence,  and  the Mortgagee,  in  acting  hereunder,
             shall be  entitled  to  assume that  no  obligations  other  than
             principal, interest and regularly accruing fees  are owing to any
             Secured Creditor.

11.    FURTHER ASSURANCES

11.01  The Owner shall execute and do all such assurances,  acts and things as
       the Mortgagee in its absolute discretion may require for:

       (a)   perfecting or protecting the  security created (or intended to be
             created) by this Mortgage; or

       (b)   preserving or protecting any of the  rights of the Mortgagee  and
             the other Secured Creditors under this Mortgage; or

       (c)   ensuring that the security  constituted by this Mortgage and  the
             covenants and obligations of the Owner under this Mortgage  shall
             inure to the benefit  of any transferee, successor or assignee of
             the Mortgagee; or

       (d)   enforcing the security constituted  by this Mortgage on or at any
             time after the same shall have become enforceable; or

       (e)   the exercise of any  power, authority or discretion vested in the
             Mortgagee under this Mortgage,

       in  any such case, forthwith  upon demand  by the Mortgagee  and at the
       expense of the Owner.

12.    POWER OF ATTORNEY

12.01  The  Owner, by way  of security and  in order to  more fully secure the
       performance of the Obligations under this  Mortgage, hereby irrevocably
       appoints the Mortgagee  as its attorney for the  duration of the Credit
       Facility Period for the purposes of:

       (a)   doing  in  its  name all  acts  and  executing,  signing  and (if
             required) registering in  its name all documents which  the Owner
             itself  could do, execute,  sign or register  in relation  to the
             Rig (including without limitation, transferring title  to the Rig
             to a third party), provided, however,  that such power shall  not
             be  exercisable by  or  on behalf  of  the  Mortgagee until  this
             Mortgage  shall have become  immediately enforceable  pursuant to
             Clause 9.01; and

       (b)   executing,   signing,   perfecting,  doing   and   (if  required)
             registering every such further  assurance document, act or  thing
             as is referred to in Clause 11.

12.02  The exercise of such  power as is referred to in Clause  12.01(a) by or
       on behalf of the  Mortgagee shall not put  any person dealing with  the
       Mortgagee upon  any enquiry  as  to whether  this  Mortgage has  become
       enforceable  nor shall such  person be  in any  way affected  by notice
       that this Mortgage has  not become enforceable and, in relation to both
       Clauses 12.01(a) and 12.01(b), the  exercise by  the Mortgagee of  such
       power  shall be  conclusive evidence  as against  third parties  of its
       right to exercise the same.

13.    INDEMNITIES

13.01  The  Owner will  indemnify  and  save  harmless  each  of  the  Secured
       Creditors  and each agent  or attorney appointed  under or  pursuant to
       this Mortgage  (each an  "Indemnitee")  from and  against  any and  all
       expenses, claims, liabilities, losses,  taxes, costs, duties, fees  and
       charges  suffered, incurred or  made by such  Secured Creditor  or such
       agent or attorney in good faith:

       (a)   in the exercise  or purported exercise  of any rights,  powers or
             discretions vested in them pursuant to this Mortgage; or

       (b)   in  the  preservation  or  enforcement  of   the  rights  of  the
             Mortgagee under this Mortgage; or

       (c)   on the  release of  the  Rig from  the security  created by  this
             Mortgage,

       and the  Secured Creditors and each  such agent or attorney  may retain
       and pay  all sums in  respect of the  same out of  money received under
       the powers conferred  by this Mortgage.   All such  amounts recoverable
       by  Secured Creditors or such agent or attorney shall be recoverable on
       a full indemnity basis.

13.02  Without limiting the foregoing Clause  13.01, the Owner hereby  further
       indemnifies and holds harmless  each of the Secured Creditors and their
       respective  officers, directors, employees,  attorneys and  agents from
       and  against  any and  all  liabilities,  losses, obligations,  claims,
       damages,  penalties, causes  of action, costs  and expenses (including,
       without   limitation,   reasonable   attorneys'  fees   and   expenses,
       consultant  fees, investigation  and laboratory  fees) imposed  upon or
       incurred by or asserted against them, or any of them, by reason of  (a)
       an  actual,  alleged  or  threatened Environmental  Incident;  (b)  any
       personal injury (including  wrongful death) or property damage (real or
       personal)  or economic  damage  arising  out  of  or  related  to  such
       Environmental  Incident;  (c)   any  Environmental  Claim   brought  or
       threatened,  or  settlement reached;  or  (d)  any violation  of  laws,
       orders, regulations, requirements  or demands of government authorities
       relating to Hazardous Materials at, or discharged from the Rig.

13.03  If, under any applicable law or  regulation, and whether pursuant to  a
       judgment being made or  registered against the Owner or the liquidation
       of  the  Owner  or  for  any other  reason,  any  payment  under  or in
       connection with the Credit Agreement or this Mortgage is  made or fails
       to be satisfied  in a currency (the "payment  currency") other than the
       currency in which such payment  is due under or in connection with this
       Mortgage (the  "contractual  currency"), then  to the  extent that  the
       amount  of  such  payment  actually  received  by  the Mortgagee,  when
       converted into the contractual  currency at the rate of exchange, falls
       short  of the amount due under or in connection with this Mortgage, the
       Owner,  as a  separate and independent  obligation, shall indemnify and
       hold harmless the  Mortgagee against the amount of such shortfall.  For
       the purposes of  this Clause 13.03, "rate  of exchange" means  the rate
       at which the Mortgagee  is able on the date of such payment  (or, if it
       is  not  practicable for  the  Mortgagee  to purchase  the  contractual
       currency  with the payment currency on the date of such payment, at the
       rate  of  exchange  as  soon  afterwards  as  is  practicable  for  the
       Mortgagee to  do so)  to  purchase the  contractual  currency with  the
       payment  currency and  shall take  into account  any premium  and other
       costs of exchange with respect thereto.

14.    EXPENSES

14.01  The  Owner shall pay to any Secured  Creditor on demand all costs, fees
       and expenses, including,  but not limited  to, legal fees  and expenses
       and valuation fees and Taxes thereon  incurred by any Secured  Creditor
       or for  which any  Secured  Creditor may  become  liable in  connection
       with:

       (a)   the  negotiation,   preparation  and  execution  of   the  Credit
             Agreement  and  the other  Credit  Documents  (or  any of  them);
             and/or

       (b)   the preserving  or  enforcing of,  or attempting  to preserve  or
             enforce,  any of  its rights  under the  Credit Agreement  or the
             other Credit Documents (or any of them).

14.02  The  Owner shall  pay to  the Mortgagee on  demand all  costs, fees and
       expenses (including, but not limited to,  legal fees and expenses)  and
       Taxes thereon incurred by any Secured Creditor in connection with:

       (a)   any variation  of, or  amendment  or supplement  to,  any of  the
             terms of the Credit Agreement or  the other Credit Documents  (or
             any  of  them) requested  by  the Owner,  necessary  or advisable
             under  applicable  law  or relating  to  the  syndication  of the
             Credit  Facility,   or  initiated   during  the  occurrence   and
             continuation of an Event of Default; and/or

       (b)   any consent or waiver  required from the Mortgagee in relation to
             the Credit Agreement  and the other  Credit Documents (or  any of
             them),

       and  in  each  case,   regardless  of  whether  the  same  is  actually
       implemented, completed or granted, as the case may be.

14.03  The  Owner shall  pay promptly  all stamp,  documentary and  other like
       duties and Taxes  to which the  Credit Agreement  and the other  Credit
       Documents  (or any  of them)  may  be subject  or give  rise and  shall
       indemnify the Mortgagee on  demand against any and all liabilities with
       respect  to or resulting from any delay  or omission on the part of the
       Owner to pay any such duties or Taxes.

15.    COMMUNICATIONS

15.01  All notices required to be given to the Mortgagee shall be  made to the
       following address:

                           Christiania Bank og Kreditkasse, New York Branch
                           11 West 42nd Street
                           7th Floor
                           New York, New York  10036
                           Attention:  Loan Administration
                           Telephone:  (212) 827-4800
                           Telefax:    (212) 827-4888

       All  other notices  shall be  made  to the  addresses  provided for  in
       Section 12.03 of the Credit Agreement and Annex II thereto.

16.    ASSIGNMENTS

16.01  This  Mortgage shall be binding upon and  shall inure to the benefit of
       the Secured Creditors and their respective  transferees, successors and
       permitted assigns,  and references  in  this Mortgage  to  any of  them
       shall be construed accordingly.

16.02  The Owner may  not assign  or transfer all  or any  part of its  rights
       and/or obligations under this Mortgage.

16.03  Pursuant to Section  12.04 of the  Credit Agreement, each Bank  has the
       right to  assign or  transfer  all or  any part  of  its rights  and/or
       obligations under the Credit  Agreement on the terms  therein provided.
       The Mortgagee  shall  notify  the Owner  promptly  following  any  such
       assignment, transfer or change.

17.    TOTAL AMOUNT, ETC.

17.01  The total amount of this  Mortgage is Three Hundred Million  US Dollars
       (US$300,000,000)  of principal  plus  interest,  fees, commissions  and
       performance of mortgage  covenants.  The  discharge amount is  the same
       as the total amount.

18.    WAIVER; AMENDMENT

18.01  None  of the  terms and  conditions of  this Mortgage  may  be changed,
       waived, modified or varied in any  manner whatsoever unless in  writing
       duly  signed by the Owner and the Mortgagee (with the consent of either
       the Required Banks or, to  the extent required by Section 12.12  of the
       Credit  Agreement, all  of  the Banks).    No amendment  to the  Credit
       Agreement which  affects the  rights and  obligations of  the Mortgagee
       hereunder  shall  be effective  without  the consent  of  the Mortgagee
       thereto.

19.    MISCELLANEOUS

19.01  This Mortgage shall be governed by the laws of the Republic of Panama.

19.02  If at  any time any one  or more of the provisions  in this Mortgage is
       or becomes invalid, illegal or unenforceable  in any respect under  any
       law  or regulation, the  validity, legality  and enforceability  of the
       remaining provisions of this  Mortgage shall not be in any way affected
       or impaired thereby.

19.03  The  Mortgagee, at  any time  and from  time to  time, may  delegate by
       power  of attorney or in any other  manner to any person or persons all
       or  any of the  powers, authorities and  discretions which  are for the
       time  being  exercisable  by  the  Mortgagee  under  this  Mortgage  in
       relation to the  Rig.  Any such delegation may  be made upon such terms
       and subject to such  regulations as the Mortgagee  may think fit.   The
       Mortgagee shall not be  in any way liable  or responsible to the  Owner
       for any  loss or  damage arising  from  any act,  default, omission  or
       misconduct on the part of any such delegate.

19.04  The  appearing parties  hereby confer  a special  power of  attorney on
       Benedetti &  Benedetti, lawyers  of Panama, Republic  of Panama  and/or
       any  partners in the firm authorizing such  firm or any such partner to
       take  all necessary  steps  to record  this  Indenture  of First  Naval
       Mortgage in the appropriate  registries of the City  of Panama, and  to
       substitute this Power of Attorney herein granted.

19.05  A  certification or  determination by  the Mortgagee  as to  any matter
       provided for  in this Mortgage shall, in the absence of manifest error,
       be conclusive and binding on the Owner.

19.06  The  Mortgagee  declares that  it  accepts  the naval  mortgage  hereby
       created under the terms above set forth.

20.    JURISDICTION

20.01  The  Owner agrees that the  Mortgagee shall have  the liberty but shall
       not be obliged to take any proceedings in the courts of any  country to
       protect  or enforce  the security  constituted by  this Mortgage  or to
       enforce any provisions of this Mortgage  or to enforce the  Obligations
       and for  the purpose of any proceedings  for such enforcement the Owner
       hereby submits to the jurisdiction  of the courts of any country of the
       choice of the Mortgagee.

20.02  Without  prejudice to  the  generality of  Clause 20.01,  the Mortgagee
       shall  have the  right to  arrest and  take action  against the  Rig at
       whatever place the Rig shall  be found lying and for the purpose of any
       action  which the  Mortgagee  may  bring  before  the  courts  of  such
       jurisdiction  or other judicial  authority and for  the purpose  of any
       action  which  the  Mortgagee may  bring  against  the  Rig,  any writ,
       notice,  judgment or  other  legal process  or  documents may  (without
       prejudice to  any other  method  of service  under  applicable law)  be
       served  upon  the master  of  the Rig  (or  upon anyone  acting  as the
       master) and such service shall  be deemed good service on the Owner for
       all purposes.

20.03  The Owner  agrees that  should the  Mortgagee bring  a legal action  or
       proceedings  against  it  or its  assets  in  relation  to  any matters
       arising  out of or in  connection with this  Mortgage, no immunity from
       such  legal action or  proceedings (which shall  be deemed  to include,
       without  limitation,   suit,  attachment  prior   to  judgment,   other
       attachment, the obtaining of judgment, execution  or other enforcement)
       shall be claimed  by or on behalf of  the Owner or with respect  of its
       assets, and  the Owner  hereby  irrevocably waives  any  such right  of
       immunity which it or  its assets now has  or may hereafter acquire  and
       the Owner  hereby consents generally in respect of  any legal action or
       proceedings arising out of  or in connection with this Mortgage  to the
       giving  out of  any relief  or the issue  of any  process in connection
       with  such  action or  proceedings including,  without  limitation, the
       making,  enforcement or  execution or  attachment against  any property
       whatsoever of any order or judgment which may be  made or given in such
       action or proceedings.

IN WITNESS   whereof  the Owner  and the  Mortgagee have  duly executed  these
presents the day and year first before written.

READING & BATES DRILLING CO.
 

By:  _____________________________________
      Name:  T. W. Nagle
      Title: Vice President and Treasurer

CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH, as Administrative Agent


By:  _____________________________________
      Name:
      Title:


By:  _____________________________________
      Name:
      Title:

                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK      )
                       )    ss:
COUNTY OF NEW YORK     )


                   On  this 13th day of  November, 1996,  before me personally
appeared  Timothy W. Nagle to  me known and  who resides at  13307 Tosca Lane,
Houston, TX;  and who submitted evidence to me that he is a Vice President and
Treasurer of READING & BATES DRILLING CO., the company described in  and which
executed the foregoing mortgage; and that  he signed his name thereto pursuant
to authority granted to him by the Board of Directors of said corporation.



____________________________________
Notary Public




                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK        )
                         )    ss:
COUNTY OF NEW YORK       )


                   On this 13th  day of  November, 1996, before  me personally
appeared Hans  Chr. Kjelsrud  to me  known and  who resides at  115 East  87th
Street,  New  York, NY;  and who  submitted  evidence to  me  that he  is Vice
President of CHRISTIANIA BANK OG KREDITKASSE, NEW YORK BRANCH, the corporation
described in and which executed the foregoing mortgage; and that he signed his
name thereto pursuant to authority granted to him by the Board of Directors of
said corporation.



____________________________________
Notary Public



                          ACKNOWLEDGMENT OF MORTGAGE


STATE OF NEW YORK       )
                        )    ss:
COUNTY OF NEW YORK      )


                   On this 13th  day of  November, 1996, before  me personally
appeared  Justin McCarty,  III to  me  known and  who resides  at  35 Pleasant
Street, Katonah, New  York; and who  submitted evidence to  me that he/she  is
Vice  President  of CHRISTIANIA  BANK  OG KREDITKASSE,  NEW  YORK BRANCH,  the
corporation described in and which  executed the foregoing mortgage; and  that
he/she signed his/her name thereto pursuant to authority granted to him/her by
the Board of Directors of said corporation.




____________________________________
Notary Public


                                                             Exhibit 10.132



                       READING & BATES (A) PTY. LTD.

                                   - to -

                      CHRISTIANIA BANK OG KREDITKASSE,
                              NEW YORK BRANCH

                         __________________________

                          FIRST PRIORITY MORTGAGE

                          Dated November 13, 1996

                         _________________________

                               RON TAPPMEYER

===========================================================================

THIS  FIRST PRIORITY  MORTGAGE is made  the 13th  day of  November, 1996 by
READING & BATES (A)  PTY. LTD., ACN  064 532 252,  a company organized  and
existing  under  the  laws  of  the State  of  Western  Australia  and  the
Commonwealth  of Australia and  having its registered office  66 Kings Park
Road,  West Perth,  West Australia,  (the "Owner")  to CHRISTIANIA  BANK OG
KREDITKASSE,  NEW YORK BRANCH having its office at 11 West 42nd Street, 7th
Floor, New York, NY  10036 (the "Mortgagee", which expression shall include
its successors and assigns),

WHEREAS:

(1)   The  Owner is the sole, absolute and unencumbered owner of sixty-four
      sixty-fourth shares of the Rig described in the Schedule 1 hereto.

(2)   By a  Credit Agreement  dated as of  November 13, 1996  (as modified,
      amended or supplemented  from time  to time, the "Credit  Agreement")
      among  (i)  Reading  &  Bates  Corporation, a  Delaware  corporation,
      ("Holdings"),  (ii) Reading  & Bates  Drilling Co.  (the "Borrower"),
      (iii) the banks party thereto (the "Banks"), (iv) Credit Lyonnais New
      York  Branch  and  Banque  Indosuez,  as  documentation  agents  (the
      "Documentation Agents")  and  (v) the  Mortgagee,  as  administrative
      agent, arranger and security trustee for the Banks (in such capacity,
      the  "Administrative  Agent") (the  form  of  which Credit  Agreement
      together with Exhibit B thereto but without the remaining attachments
      is attached hereto as  Exhibit 1), it  was agreed among other  things
      that the  Banks would make available  to the Borrower  upon the terms
      and conditions therein described a reducing revolving credit facility
      in  an aggregate amount at any one  time outstanding of Three Hundred
      Million  United States  Dollars  (US$300,000,000) providing  for  the
      making of Loans and the issuance of and participations in, Letters of
      Credit as contemplated therein.

(3)   The  obligations of  the Borrower  with respect  to the  Facility are
      evidenced by the Credit Agreement and the other Credit Documents, and
      including the promissory  notes of the Borrower payable to  the order
      of  the  respective  Banks  (each  a  "Note"  and, collectively,  the
      "Notes") (the  form of which is  attached as Exhibit B  to the Credit
      Agreement).

(4)   The  Owner,  for good  and  valuable  consideration, has  authorized,
      executed and delivered a Subsidiary Guaranty (as modified, amended or
      supplemented from time to time, the "Subsidiary Guaranty"), the  form
      of  which Subsidiary  Guaranty is  attached hereto  as Exhibit  2, in
      favor of the Administrative Agent guaranteeing the performance by the
      Borrower of its obligations under the  Credit Agreement including the
      payment, when due, of all Obligations.

(5)   This  Mortgage is made for the benefit of the Mortgagee to secure the
      guaranty by the Owner of (i) the full and  prompt payment when due of
      (x)  the principal  of and interest  on the  Notes issued,  and Loans
      made, under  the Credit Agreement, and  all reimbursement obligations
      and  Unpaid Drawings  with respect  to the  Letters of  Credit issued
      under  the  Credit  Agreement  and  (y)  all  other  obligations  and
      indebtedness  (including, without  limitation, indemnities,  Fees and
      interest  thereon)  of the  Borrower  to  the Secured  Creditors  (as
      hereinafter defined),  whether  now existing  or  hereafter  incurred
      under, arising out of or in connection with the Credit  Agreement and
      the  other  Credit  Documents  including,  without  limitation,  this
      Mortgage  and the due performance and compliance by the Borrower with
      all of the  terms, conditions and agreements contained in  the Credit
      Agreement  and  the   other  Credit   Documents  including,   without
      limitation,  this Mortgage;  (ii) any  and all  sums advanced  by the
      Mortgagee  in  order to  preserve  the Rig  or preserve  its security
      interest in  the Rig; (iii)  in the event  of any  proceeding for the
      collection  or  enforcement  of  any  indebtedness,  obligations,  or
      liabilities of the Borrower referred to in clause (i) above, after an
      Event   of  Default  shall  have  occurred  and  be  continuing,  the
      reasonable expenses of the Mortgagee or re-taking, holding, preparing
      for  sale or lease, selling or otherwise disposing of or realizing on
      the Rig, or of any exercise by the Mortgagee of its rights hereunder,
      together with reasonable attorneys' fees of counsel to the  Mortgagee
      and court  costs; and (iv) all  amounts paid by any  Indemnitee as to
      which  such Indemnitee has the right to reimbursement under Clause 13
      of  this  Mortgage  (all  such  obligations,  liabilities,  sums  and
      expenses  referred  to  in  clauses  (i)  through  (iv)  above  being
      collectively referred to as  the "Obligations").  It is  acknowledged
      and agreed that the  "Obligations" shall include extensions of credit
      of the types described above, whether outstanding on the date of this
      Mortgage  or  extended  from time  to  time after  the  date  of this
      Mortgage.

(6)   This First Priority  Mortgage, which is entered into  by the Owner in
      consideration  of the Banks  entering into  the Credit  Agreement and
      agreeing  to make  the Facility available  to the  Borrower and  as a
      condition  thereto  and for  other  good  and valuable  consideration
      provided  by the  Banks (the  sufficiency of  which the  Owner hereby
      acknowledges).

NOW THIS MORTGAGE WITNESSETH AND IT IS HEREBY AGREED as follows:

1.    (A)   In this Mortgage unless the context otherwise requires:

      "Administrative Agent" shall  have the same meaning for such  term as
      set forth in the Credit Agreement;

      "Bank" means any lender  listed from time to  time on Annex I to  the
      Credit Agreement (collectively, the "Banks");

      "Collateral" shall have the  same meaning for such term  as set forth
      in the Credit Agreement; 

      "Credit Agreement"  means the Credit Agreement, dated  as of November
      13,  1996, among Holdings, the Borrower, the Banks, the Documentation
      Agents  and the Administrative Agent first referred to in Recital (2)
      hereto, as modified, amended or supplemented from time to time;

      "Credit Facility Period" shall mean the period commencing on the date
      hereof  and ending on the date the Total Commitments have terminated,
      no Letters of Credit remain  outstanding and the Loans and the Unpaid
      Drawings, together with interest, fees and  all other obligations are
      paid in full;

      "Default  Rate"  shall  mean  the  rate  of  interest  calculated  in
      accordance with Section 1.08(c) of the Credit Agreement;

      "Environmental  Approvals"  means  all approvals,  licenses, permits,
      exemptions or  authorization required under  applicable Environmental
      Laws;

      "Environmental Claims"  means any and  all administrative, regulatory
      or judicial  actions, suits, demands, demand  letters, claims, liens,
      notices  of noncompliance  or violation,  investigations  (other than
      internal reports  prepared by  Holdings  or any  of its  Subsidiaries
      solely in the  ordinary course of such  Person's business and not  in
      response  to any  third  party  action or  request  of any  kind)  or
      proceedings  relating  in any  way  to any  Environmental Law  or any
      permit  issued, or  any approval given, under  any such Environmental
      Law (hereafter, "Claims"), including, without limitation, (a) any and
      all Claims by governmental or regulatory authorities for enforcement,
      cleanup,  removal, response,  remedial  or other  actions  or damages
      pursuant to  any applicable Environmental  Law, and (b)  any and  all
      Claims   by   any  third   party   seeking   damages,   contribution,
      indemnification,  cost recovery,  compensation or  injunctive  relief
      resulting  from Hazardous  Materials arising  from alleged  injury or
      threat of injury to health, safety or the environment;

      "Environmental Incident"  means  (i) any  release of  Environmentally
      Sensitive  Material  from  the   Rig,  (ii)  any  incident  in  which
      Environmentally Sensitive  Material is  released from a  vessel other
      than the  Rig and which involves  collision between the Rig  and such
      other  vessel or some  other incident of navigation  or operation, in
      either  case, where the Rig or the Owner are actually or allegedly at
      fault or otherwise liable (in whole or in part) or (iii) any incident
      in which Environmentally Sensitive Material is released from a vessel
      other than  the Rig  and where  the Rig  is actually  or  potentially
      liable to be arrested as a result and/or where  the Owner is actually
      or allegedly  at fault or  otherwise liable (and, in  each such case,
      "release"  shall mean  disposing, discharging,  injecting,  spilling,
      leaking,  leaching, dumping,  emitting, escaping,  emptying, seeping,
      placing and  the like,  into or  upon any  land or  water or  air, or
      otherwise entering into the environment);

      "Environmental Law"  means any applicable Federal,  state, foreign or
      local statute, law, rule,  regulation, ordinance, code, guide, policy
      and rule of common law now or hereafter in effect and in each case as
      amended,  and any judicial or  administrative interpretation thereof,
      including any  judicial or  administrative order, consent,  decree or
      judgement, relating  to the environment, health,  safety or Hazardous
      Materials, including, without  limitation, CERCLA; RCRA;  the Federal
      Water Pollution  Control Act, as amended,  33 U.S.C.   1251 et seq.;
      the Toxic Substances Control Act, 15 U.S.C.  7401 et seq.; the Clean
      Air Act,  42 U.S.C.  7401  et seq.; the Safe Drinking  Water Act, 42
      U.S.C.   3808 et seq.;  the Oil Pollution  Act of 1990,  33 U.S.C. 
      2701   et  seq.  and  any  applicable  state  and  local  or  foreign
      counterparts or equivalents; 

      "Fees" shall have the same meaning for such term as set forth in  the
      Credit Agreement;

      "Hazardous Materials" means (a)  any petroleum or petroleum products,
      radioactive materials, asbestos  in any form that is or  could become
      friable,  urea formaldehyde  foam insulation,  transformers  or other
      equipment  that  contained,  electric  fluid  containing  levels   of
      polychlorinated  biphenyls,  and   radon  gas;  (b)   any  chemicals,
      materials or substances  defined as or included in the  definition of
      "hazardous  substances,"  "hazardous  waste,"  "hazardous materials,"
      "extremely  hazardous waste,"  "restricted  hazardous  waste," "toxic
      substances," "toxic pollutants," "contaminants," or  "pollutants," or
      words of similar import, under any applicable Environmental  Law; and
      (c) any other  chemical, material or substance, exposure to  which is
      prohibited, limited or regulated by any governmental authority;

      "Indemnitee" shall have the meaning set forth in Section 13(A);

      "Insurances" includes all policies  and contracts of insurance (which
      expression  includes all  entries  of the  Rig  in a  protection  and
      indemnity  association)  which are  from  time to  time taken  out or
      entered into in respect of the Rig or otherwise by the Owner (whether
      in the sole name of the Owner or in the joint names of  the Owner and
      the Administrative Agent) and  all benefits thereof (including claims
      of whatsoever nature and return of premiums);

      "Interest Period"  shall have the  same meaning for such  term as set
      forth in Section 1.09 of the Credit Agreement;

      "Letter of Credit" shall have  the same meaning for such term  as set
      forth in Section 2.01(a) of the Credit Agreement; 

      "Loan(s)" shall have the same  meaning for such term as set  forth in
      the Credit Agreement;

      "Major Casualty" means any casualty to the Rig in respect whereof the
      claim or  the aggregate of  the claims against  all insurers,  before
      adjustment  for any  relevant franchise  or deductible,  exceeds Five
      Hundred Thousand United States Dollars (US$500,000) or the equivalent
      in any other currency;

      "Note"  means each  promissory note  of the  Borrower referred  to in
      Recital (3) hereto and in Section 1.05(a) of the Credit Agreement;

      "Obligations" shall have the meaning provided in Recital (5) hereto;

      "Oil Pollution Act 1990" means the Oil Pollution  Act 1990 (33 U.S.C.
      2701 et seq.), as amended;

      "Other  Rigs" means,  individually or  collectively, each of  (i) the
      semi-submersible  drilling  rig  JACK  BATES  owned by  the  Borrower
      documented under the laws and flag of the United States with Official
      Number  906283  of  19,928  gross  registered  tons  and  14,948  net
      registered tons; (ii)  the offshore drilling rig W. D.  KENT owned by
      Reading & Bates Exploration  Co. ("R&B Exploration") documented under
      the laws and flag of the United States with Official Number 583169 of
      5,383  gross registered tons and 4,185 net registered tons; (iii) the
      offshore  drilling  rig  CHARLEY GRAVES  owned by  Reading  and Bates
      Borneo Drilling  Co., Ltd. documented under the laws  and flag of the
      Republic of  Panama  with Patente  Number 6618-76-CH  of 5,829  gross
      registered  tons and 1,748 net registered tons; (iv) the drilling rig
      D. R. STEWART  owned by R&B Exploration documented under the laws and
      flag of  United States  with Official  Number 626904 of  6,494  gross
      registered  tons  and  5,834  net  registered  tons;  (v)  the  semi-
      submersible  drilling  rig  J.  W.  McLEAN  owned  by  the   Borrower
      documented under  the laws and  flag of the  Republic of  Panama with
      Official Number 25384-PEXT of  15,453 gross registered tons and 4,636
      net registered tons; (vi)  the semi-submersible drilling  rig RIG  41
      owned by  the Borrower  documented under  the laws  and  flag of  the
      Republic of Panama with the Patente Number to be assigned on the date
      hereof of 10,078 gross registered tons and 3,024 net registered tons;
      (vii) the  jack-up  drilling rig  HARVEY  H. WARD  owned by  HRB  Rig
      Corporation documented under  the laws and flag of the  United States
      of America with Official Number 642693 of 4,121 gross registered tons
      and 3,079 net registered tons;  (vii) the jack-up drilling rig  F. G.
      McCLINTOCK  owned by  Reading  & Bates  Offshore,  Limited documented
      under the laws and flag of the United States of America with Official
      Number 562059 of 5,525 gross registered tons and 1,657 net registered
      tons;  (viii) the  jack-up drilling  rig RANDOLPH  YOST owned  by the
      Borrower documented under the  laws and flag of the  United States of
      America with Official  Number 601699 of  4,701 gross  registered tons
      and 4,701 net  registered tons; (ix) the  jack-up drilling rig J.  T.
      ANGEL owned by the Borrower documented under the laws and flag of the
      United States of  America with Official Number 651645 of  4,186 gross
      registered  tons  and 3,090  net  registered  tons;  (x) the  jack-up
      drilling rig ROGER  W. MOWELL owned by the Borrower  documented under
      the  laws and  flag of  the United  States of  America with  Official
      Number 645360 of 4,121 gross registered tons and 3,079 net registered
      tons;  (xi)  the jack-up  drilling  rig GEORGE  H. GALLOWAY  owned by
      Reading  & Bates Offshore, Limited documented under the laws and flag
      of the United States of America  with Official Number 651646 of 3,729
      gross  registered tons and  2,496 net registered tons;  and (xii) the
      jack-up drilling rig C.E. THORNTON to be owned by HRB Rig Corporation
      documented under the laws and flag of  the United States  of  America
      with Official Number 673210 of 6,096 gross  registered tons and 6,096
      net registered tons;

      "Permitted  Liens" means: (1) liens  incident to expenses  of current
      operations, other than for master's and crew's wages, incurred in the
      ordinary course of business of the Owner and due  and payable for not
      more  than  thirty  (30)  days (or  being  contested  in good  faith,
      provided such liens are not in excess of U.S.$5,000,000.00, and if in
      excess thereof, then the Owner shall, upon the written request of the
      Administrative Agent,  provide a bond or  other security satisfactory
      to the Administrative Agent); (2) liens for master's and crew's wages
      not  yet  due  and   payable;  (3)  liens  for   taxes,  assessments,
      governmental charges, fines and penalties not at  the time delinquent
      (unless being contested in good faith, provided such liens are not in
      excess of U.S.$5,000,000.00, and if in excess thereof, then the Owner
      shall, upon the written  request of the Administrative Agent, provide
      a bond or other security  satisfactory to the Administrative  Agent);
      (4)  liens  for  general  average  and  salvage  (including  contract
      salvage); (5) liens for claims covered by valid policies of insurance
      meeting  the requirements  of Clause  6 hereof  (except that  no lien
      shall be deemed not covered by  insurance to the extent insurance  in
      force  would  cover  the amount  secured  by  the  lien but  for  any
      applicable deductible  amount approved by  the Administrative Agent);
      (6)  liens arising  pursuant  to  any  judgment  or to  an  order  of
      attachment, distraint or similar  legal process arising in connection
      with legal proceedings, but only  if and so long as the  execution or
      other  enforcement   thereof  is  not  unstayed  for   more  than  30
      consecutive days; (7) any lien for the payment or discharge of  which
      provisions satisfactory to the Administrative Agent have been made as
      evidenced by the Administrative Agent's written consent to such lien;
      (8) any lien in favor of the Banks; and provided that Permitted Liens
      shall not include  any liens described in subclauses (1)  through (7)
      above unless  they: (i) are subordinate to the  lien of this Mortgage
      or (ii)  constitute  a maritime  lien  which would  in any  event  be
      entitled  as  such to  priority  over the  Mortgage under  the United
      States shipping laws  or other applicable laws relating to  the Rig's
      trading  pattern.  Nothing  herein shall  be deemed  a waiver  of the
      priority preferred lien status of this Mortgage; 

      "Protection and  indemnity risks" means  the usual  risks covered  by
      protection   and  indemnity  associations   of  international  repute
      including  the proportion not recoverable  in case of collision under
      the ordinary  running-down clause  (unless such is  recoverable under
      the relevant hull and machinery coverage);

      "Requisition Compensation"  means all  moneys or  other  compensation
      payable during  the Credit Facility  Period by  reason of requisition
      for title or  other compulsory acquisition of the Rig  otherwise than
      by requisition for hire;

      "Rig"  means the vessel  referred to in  Recital (1) hereto  and more
      fully  described in  Schedule  1 hereto  and  includes any  share  or
      interest therein  and her engines, machinery,  boats, tackle, outfit,
      spare  gear,  fuel,  consumable   or  other  stores,  belongings  and
      appurtenances whether  on board or  ashore and whether  now owned  or
      hereafter  acquired (but  excluding  therefrom  any leased  equipment
      owned by third parties);

      "Secured Creditors" shall mean the Banks, the Letter of Credit Issuer
      and the  Administrative  Agent under  and  as defined  in the  Credit
      Agreement;

      "Security Documents" shall have the same meaning for such term as set
      forth in the Credit Agreement;

      "Security  Interest"  means  a  mortgage,  charge  (whether fixed  or
      floating),    pledge,   lien,   hypothecation,    assignment,   trust
      arrangement,   title  retention   or  other   security   interest  or
      arrangement of any kind whatsoever;

      "Subsidiary Guaranty"  means the agreement  dated as  of November 13,
      1996 made by the Owner in  favor of the Administrative Agent as first
      referred   to  in  Recital  (4)  hereto,   as  modified,  amended  or
      supplemented from time to time;

      "Taxes" shall have the same meaning for such term as set forth in the
      Credit Agreement;

      "Total Commitment" shall have the  same meaning for such term as  set
      forth in the Credit Agreement;

      "Total Loss" means (a) the actual, constructive, arranged, agreed, or
      compromised Total  Loss of the Rig; (b) the  requisition for title or
      other compulsory  acquisition or forfeiture of the Rig otherwise than
      by requisition for hire;  (c) the capture, seizure, arrest, detention
      or confiscation of the Rig by any government or by  persons acting or
      purporting  to act  on behalf  of any  government unless  the  Rig be
      released  from  such  capture, seizure,  arrest  or  detention within
      ninety (90) days after the occurrence thereof;

      "United States  Dollars" and "US$"  means the lawful currency  of the
      United States of America;

      "Unpaid  Drawing" shall have  the same meaning  for such  term as set
      forth in the Credit Agreement;

      (B)   In Clause 5(A) hereof:

            (i)   "Excess risks" means the proportion of claims for general
                  average  and  salvage  charges  and  under  the  ordinary
                  running-down clause not recoverable in consequence of the
                  value at  which a vessel  is assessed for the  purpose of
                  such claim exceeding her insured value;

            (ii)  "Protection and  indemnity risks"  means the  usual risks
                  covered  by   a  protection  and   indemnity  association
                  including  the  proportion  not  recoverable  in case  of
                  collision under the ordinary running-down clause;

            (iii) "War  risks" includes  the  risk of  mines and  all risks
                  excluded from the standard form  of English marine policy
                  by the free of capture and seizure clause.

      (C)   This Mortgage shall be read together with the Credit Agreement,
            the  Notes,  the  Subsidiary  Guaranty  and  the  other  Credit
            Security Documents.

      (D)   The Owner hereby represents and warrants to the Mortgagee that:

            (i)   the Owner is the  sole legal and beneficial owner of  the
                  whole of the  Rig and neither the whole nor  any share in
                  the Rig is subject to  any Security Interest (except  for
                  Permitted Liens and the lien of this Mortgage);

            (ii)  the Owner  has not sold or transferred, or agreed to sell
                  or transfer, title to the Rig or any share therein; 

            (iii) the Owner  is a  corporation duly  organized and  validly
                  existing and in good standing under the laws of the State
                  of Western Australia and the Commonwealth of Australia;

            (iv)  the Owner  has full power and  authority (i) to  register
                  the  Rig  in  its  name under  Australian  flag,  (ii) to
                  execute and deliver this Mortgage,  (iii) to mortgage the
                  Rig as security  for the Obligations  and (iv)  to comply
                  with the provisions  of, and perform all  its obligations
                  under, this Mortgage;

            (v)   the  Owner  has  complied with  all  statutory  and other
                  material  requirements   relating   to   the   ownership,
                  registration and operation of the Rig; 

            (vi)  the Owner has taken all necessary action to authorize the
                  execution and delivery of this Mortgage and this Mortgage
                  constitutes, the  legal, valid and  binding obligation of
                  the Owner  enforceable  against the  Owner in  accordance
                  with  its  terms   (except  to  the  extent   limited  by
                  applicable   bankruptcy,    reorganization,   insolvency,
                  moratorium or other laws of  general application relating
                  to or affecting  the enforcement of creditors'  rights as
                  from  time  to  time  in  effect  and  general  equitable
                  principles) and when filed with the Registrar of Ships at
                  the  Australian  Shipping  Registration  Office  and  the
                  Australian  Securities  Commission will  create a  legal,
                  valid and  enforceable first  preferred mortgage lien  on
                  the Rig;

            (vii) the  entry into  and performance  by  the Owner  of  this
                  Mortgage does not and will not during the Credit Facility
                  Period violate in any  respect (i) any law or  regulation
                  of any  governmental or  official authority  or body,  or
                  (ii)  any  of  the constitutive  documents  of  the Owner
                  including its Memorandum and Articles  of Association, as
                  amended  from  time  to  time,   or  (iii)  any  material
                  agreement,  contract  or other  undertaking to  which the
                  Owner  is a party  or which is binding  upon the Owner or
                  any of its assets;

           (viii) all  consents,  licenses,  approvals  and  authorizations
                  required in connection with the entry into,  performance,
                  validity and enforceability of this Mortgage    and   the
                  transactions  contemplated hereby and  thereby have  been
                  obtained and are in full force  and effect and will be so
                  maintained during  the Credit  Facility Period; 

            (ix)  save for such  registrations and filings as  are referred
                  to  in  this  Mortgage,  it  is  not  necessary  for  the
                  legality,  validity, enforceability  or admissibility  in
                  evidence  of  this  Mortgage  that  it  or  any  document
                  relating  thereto  be  registered,   filed,  recorded  or
                  enrolled with  any court  or  authority in  any  relevant
                  jurisdiction or that any  stamp, registration or  similar
                  taxes be paid on or in relation to this Mortgage;

            (x)   the   Owner  is   in  compliance   with   all  applicable
                  Environmental   Laws  and  all   Environmental  Approvals
                  relating to the Rig, its operation and management and the
                  business of the  Owner (as  now conducted and  reasonably
                  anticipated to  be conducted  in  the future)  have  been
                  obtained or complied with;

            (xi)  no  Environmental  Claim  has  been  made  or  threatened
                  against the Owner,  the Approved Manager or  otherwise in
                  connection with the Rig; and

            (xii) no  Environmental Incident which  has resulted,  or which
                  could   reasonably  be   expected   to   result,  in   an
                  Environmental Claim in excess of US$200,000 has occurred.

2.    In order to  induce Banks to enter  into the Credit Agreement  and to
      make the  Facility available thereunder and in consideration of other
      valuable consideration (receipt whereof is hereby acknowledged by the
      Owner) the Owner hereby covenants with the Mortgagee as follows:

      (A)   The Owner  shall pay the  full amount of all  moneys comprising
            the Obligations  as  and when  the  same shall  become due  and
            payable in accordance with the terms of the Subsidiary Guaranty
            and the other Credit Documents.

      (B)   The Owner  will  pay to  or  indemnify the  Mortgagee for  such
            additional  amounts  as may  be  necessary  in  order that  all
            payments  under this Mortgage  after deduction  of, for,  or on
            account  of  every  present  or   future  tax,  assessment  and
            governmental charge imposed  by any competent authority  in the
            State of Western Australia  or Commonwealth of Australia (or in
            such other jurisdictions to the revenue laws of which the Owner
            may for the time being be  subject) shall be no less than  such
            payments would have been had there been no such tax, assessment
            or charge.

3.    By way of  security for the performance of the  Obligations THE OWNER
      as BENEFICIAL OWNER HEREBY MORTGAGES  AND CHARGES to and in favor  of
      the Mortgagee all the Owner's interest in the Rig, including, without
      limitation, all 64 shares in the Rig, the Earnings and the Insurances
      (all of which the Owner hereby warrants to be free at the date hereof
      from any other charge or incumbrance whatsoever, other than Permitted
      Liens, if any) and  Requisition Compensation and without prejudice to
      the generality of the  foregoing THE OWNER HEREBY ASSIGNS AND  AGREES
      to assign  to the Mortgagee (or to procure to assign to the Mortgagee
      as the case may be)  the Earnings and the Insurances  and Requisition
      Compensation  as  defined  herein  PROVIDED  HOWEVER  that  any  sums
      receivable in respect of the Insurances shall be payable as follows:

      (A)   There  shall  be  paid to  the  Mortgagee  any  and  every  sum
            receivable in respect of a Total Loss.

      (B)   Unless and until Underwriters have been otherwise instructed by
            notice in  writing from the  Mortgagee, (i) any loss  under any
            insurance on the  Rig with respect to protection  and indemnity
            risks may be paid directly to the Owner to reimburse it for any
            loss, damage  or expense  incurred by  it and  covered by  such
            insurance  or to  the person to  whom any liability  covered by
            such insurance has been incurred, (ii) in the case of any  loss
            (other than  a Total Loss or a loss covered by (i) above) under
            any insurance with respect  to the Rig involving any damage  to
            the Rig,  the Underwriters  may pay  directly for  the  repair,
            salvage, liability or other charges involved or,  if the Owners
            shall have  first fully repaired  the damage and paid  the cost
            thereof, or discharged the liability or paid all of the salvage
            or other charges, then  the Underwriters may pay the Owners  as
            reimbursement therefor, provided, however,  that if such damage
            involves a  loss in excess of U.S. $1,000,000 or its equivalent
            the Underwriters  shall not  make  such payment  without  first
            obtaining the written consent thereto of the Mortgagee.

4.    It is declared and agreed  that the security created by this Mortgage
      shall be  held by  the Mortgagee  as a  continuing  security for  the
      performance of  all Obligations  under the  Credit Documents and  the
      performance  and  observance  of  and  compliance  with  all  of  the
      covenants, terms and conditions therein and herein contained and that
      the security  so created shall  not be satisfied by  any intermediate
      payment or satisfaction of any  part of the amount hereby and thereby
      secured and that the security so created shall be in  addition to and
      shall not in any  way be prejudiced or affected by  any collateral or
      other security  now or hereafter held by the Mortgagee for all or any
      part of the  moneys hereby and  thereby secured and that  every power
      and remedy given to the  Mortgagee hereunder shall be in addition to,
      and not a limitation of, any  and every other power or remedy  vested
      in the Mortgagee under  the Subsidiary Guaranty and the other  Credit
      Documents or  any other document or instrument  entered into pursuant
      to the Credit Agreement  or at law and that all  the powers so vested
      in the  Mortgagee may be exercised from time to  time and as often as
      the Mortgagee may deem expedient.

5.    The Owner further covenants with the Mortgagee and undertakes that:

      (A)(i)      The Owner shall, at its own expense, when and so long  as
                  the  Obligations remain  outstanding, insure the  Rig and
                  keep her  insured, or  cause the  Rig to  be insured,  in
                  lawful money of the United  States, in such amounts,  for
                  such  risks  (including  without   limitation,  hull  and
                  machinery/increased  value,   protection  and   indemnity
                  risks, pollution liability, and war  risks), in such form
                  (including  without  limitation,  the  form of  the  loss
                  payable clause and the designation of named assureds) and
                  with such first  class insurance companies, underwriters,
                  funds, mutual insurance  associations or clubs, as  shall
                  be  reasonably  satisfactory  to  the  Mortgagee.    With
                  respect to hull  and machinery/increased value insurance,
                  including war  risk, the Owner shall  insure the Rig  and
                  keep her insured, or cause the  Rig to be insured, for an
                  amount which is at least the full commercial value of the
                  Rig, and when such  amount is aggregated with  the amount
                  of  such  insurance  coverage  on  the  Other Rigs,  such
                  aggregate amount shall be at least 110% of the  aggregate
                  amount of  the Total  Commitment.   The Rig  shall in  no
                  event  be insured  for  an amount  less  than  the agreed
                  valuation as set forth in  the applicable marine and  war
                  risk policies.  Such insurance shall cover marine and war
                  risk perils, on hull and  machinery, with deductibles not
                  in excess of US$500,000 (such deductibles not to apply in
                  the  case  of  Total Loss  of  the  Rig),  and  shall  be
                  maintained  in  the   broadest  forms  available  in  the
                  American, British  and Scandinavian insurance  markets or
                  in  such  other  major  international markets  reasonably
                  acceptable to the  Mortgagee.  The Owner  shall maintain,
                  or cause to  be maintained,  protection and indemnity  or
                  equivalent insurance, including  war risk protection  and
                  indemnity   coverage  and   coverage  against   pollution
                  liability, in an amount not less than US$100,000,000 (or,
                  with  respect  to  pollution   liability  coverage,  such
                  greater amount  as may be  required from time to  time by
                  the Oil Pollution Act 1990, or other Environmental Laws),
                  as and  when applicable  to the  Rig and its  operations,
                  through underwriters  or associations  acceptable to  the
                  Mortgagee.   In  addition, the  Owner shall,  at its  own
                  expense, furnish  to the  Mortgagee a  mortgagee's single
                  interest policy providing coverage which, when aggregated
                  with the mortgagee's  interest insurance furnished to the
                  Mortgagee in  respect of the  Other Rigs, shall be  in an
                  amount equal  to at least 110% of the aggregate amount of
                  the Total  Commitment (or  in  lieu of  such  mortgagee's
                  interest  insurance  Owner  shall  cause   the  hull  and
                  machinery/increased  value  insurance to  be endorsed  to
                  afford breach of warranty coverage for the benefit of the
                  Mortgagee).  Such  mortgagee's interest insurance and any
                  additional  insurance  policies for  the  benefit of  the
                  Mortgagee  shall  be  maintained  in  the  broadest  form
                  available  in  the  American,  British  and  Scandinavian
                  markets or  other major international  markets acceptable
                  to the  Mortgagee through underwriters  acceptable to the
                  Mortgagee.   The Rig shall not operate in or proceed into
                  any area then  excluded by  trading warranties under  its
                  marine or  war  risk policies  (including protection  and
                  indemnity) without  obtaining  any  necessary  additional
                  coverage,  satisfactory   in  form  and   substance,  and
                  evidence of which shall be furnished, to the Mortgagee.

      (ii)        The policy  or policies of  insurance shall  be issued by
                  responsible underwriters  reasonably  acceptable  to  the
                  Mortgagee, shall contain conditions, terms,  stipulations
                  and insuring covenants satisfactory to the Mortgagee, and
                  shall be  kept in full force  and effect by the  Owner so
                  long as the  Obligations shall be outstanding.   All such
                  policies, binders  and other interim  insurance contracts
                  shall be executed and issued in the name of the Owner and
                  shall, to the  extent required herein, provide  that loss
                  be payable  to the  Mortgagee for  distribution by  it to
                  itself, the Banks  and the Owner  as their  interests may
                  appear,  and shall provide for  at least ten  days' prior
                  notice to be  given to the Mortgagee by  the underwriters
                  or  association  in  the  event  of  cancellation or  the
                  failure  of the  Owner to pay  any premium or  call which
                  would suspend coverage under the policy or the payment of
                  a  claim  thereunder.    Certified  copies  of  all  such
                  policies, binders  and other interim  insurance contracts
                  shall be deposited  with the Mortgagee.   Originals shall
                  also be  provided upon the request of the Mortgagee.  The
                  Owner shall furnish to the  Mortgagee annually a detailed
                  report  signed  by  a firm  of  marine  insurance brokers
                  satisfactory  to  the   Mortgagee  as  to  the  insurance
                  maintained in  respect of the Rig, as to their opinion as
                  to  the adequacy thereof  and as  to compliance  with the
                  provisions of this Clause 5(A).

                  Unless otherwise required  by the Mortgagee by  notice to
                  the underwriters,  although the  following  insurance  is
                  payable  to  the  Mortgagee,  (i)   any  loss  under  any
                  insurance  on  the  Rig with  respect  to  protection and
                  indemnity  risks may  be paid  directly  to the  Owner to
                  reimburse it for any  loss, damage or expense incurred by
                  it and covered by such insurance or to the person to whom
                  any liability covered by such insurance has been incurred
                  and  (ii) in  the case  of any  loss  (other than  a loss
                  covered by (i)  above or by the  next following paragraph
                  of this Clause 5(A)(ii) under  any insurance with respect
                  to  the  Rig  involving  any  damage  to   the  Rig,  the
                  underwriters may pay directly for  the repair, salvage or
                  other charges  involved or, if the Owner shall have first
                  fully repaired the damage  or paid all of the salvage  or
                  other  charges,  may  pay  the  Owner   as  reimbursement
                  therefor; provided, however, that if such damage involves
                  a before deductible  loss in excess of  US$1,000,000, the
                  underwriters shall not  make such  payment without  first
                  obtaining the  written consent  thereto of the  Mortgagee
                  (which consent shall not be  unreasonably withheld).  Any
                  loss covered  by  this  paragraph which  is paid  to  the
                  Mortgagee but which  might have been paid,  in accordance
                  with the provisions  of this  paragraph, directly to  the
                  Owner or others, shall be paid by the Mortgagee to, or as
                  directed  by, the  Owner and  all other  payments  to the
                  Mortgagee of losses  covered by  this paragraph shall  be
                  applied by the Mortgagee in accordance with Clause 10.

                  In the event of an actual or constructive Total Loss or a
                  compromised constructive  Total Loss  or  requisition  of
                  title, all insurance  payments therefor shall be  paid to
                  the Mortgagee.  The Owner shall not declare or agree with
                  the  underwriters  that  the  Rig  is  a constructive  or
                  compromised, agreed  or arranged constructive  Total Loss
                  without the prior written consent of the Mortgagee.

      (iii) In the event  of an  actual or constructive  Total Loss of  the
            Rig, the Mortgagee  shall retain out of  the insurance payments
            received on account of such loss  any sum or sums that shall be
            or  become  owing to  the Secured  Creditors  under the  Credit
            Documents,  whether or  not the same  be then due  and payable,
            together  with  accrued  interest and  the  cost,  if  any,  of
            collecting the  insurance, and pay  the balance  as provided in
            Clause 10.

      (iv)  The Owner shall comply  with and satisfy all of the  provisions
            of  any  applicable  law,  regulation,  proclamation  or  order
            concerning financial responsibility for  liabilities imposed on
            the Owner or the Rig with respect to the carriage of passengers
            or pollution, and will maintain, or cause to be maintained, all
            certificates or  other evidence of  financial responsibility as
            may be  required by any  such law,  regulation, proclamation or
            order with respect to the trade which the Rig from time to time
            is engaged in.

      (v)         The Owner shall  renew all insurances as  they expire and
                  so as to  insure that there  is no gap in  coverage, keep
                  the Mortgagee advised  of the progress of  such renewals,
                  and procure that  the insurers shall promptly  confirm in
                  writing to the Mortgagee as and when each such renewal is
                  effected.

      (vi)  The   Owner  shall   punctually   pay   all  premiums,   calls,
            contributions or  other sums  payable  in respect  of all  such
            insurances and produce  all relevant receipts when  so required
            by the Mortgagee.

      (vii) The Owner shall arrange for the execution of such guarantees as
            may  from  time  to  time  be required  by  any  protection and
            indemnity or war risks association.

      (viii)      The Owner  shall not employ the Rig or  suffer the Rig to
                  be employed otherwise  than in conformity with  the terms
                  of the instruments of insurance aforesaid relative to the
                  Rig  (including  any  warranties,   express  or  implied,
                  therein)  without  first  obtaining  the  consent  of the
                  insurers  to  such  employment  and complying  with  such
                  requirements as  to extra  premium  or otherwise  as  the
                  insurers may prescribe.

      (B)   maintain its existence as a  corporation in good standing  duly
            organized under  the laws of the State of Western Australia and
            Commonwealth of Australia;

      (C)   Not to change the name of the Rig without the Mortgagee's prior
            approval and  to keep the  Rig registered as an  Australian Rig
            and not  do  or  suffer to  be done  anything,  or omit  to  do
            anything the doing or  omission of which could or might  result
            in such  registration being  forfeited or  imperilled or  which
            could  or  might  result  in  the  Rig  being  required  to  be
            registered  otherwise  than  as an  Australian Rig  and  not to
            register  the Rig  or permit  its registration under  any other
            flag or at any other port without the  prior written consent of
            the Mortgagee.

      (D)   not  without the  previous consent in writing  of the Mortgagee
            make  any   modification  to  the  Rig  which  would  or  might
            materially  alter  the   structure  or   type  or  reduce   the
            performance characteristics of the Rig or materially reduce the
            value of the Rig;

      (E)   To  keep the  Rig  in  a good  and  efficient  state of  repair
            consistent  with  the  ownership  and  operating  practices  of
            first-class  rig  owners and  operators so  as to  maintain her
            present  class  (namely Rig  Class +A1  Self-Elevating Drilling
            Rig) and  so as to  comply with the provisions  of the Shipping
            Registration Act 1981 (Commonwealth of Australia) and all other
            laws,  regulations and  requirements  (statutory  or otherwise)
            from time to time applicable to vessels registered in Australia
            and  to  procure that  all  repairs to  or  replacement of  any
            damaged, worn  or lost parts  or equipment be effected  in such
            manner (both as  regards workmanship and quality  of materials)
            as not to diminish the value of the Rig;

      (F)   procure that all repairs to or replacement of any damaged, worn
            or lost parts or equipment be effected in such manner  (both as
            regards  workmanship  and  quality  of  materials)  as  to  not
            diminish the value of  the Rig and  not to remove any  material
            part of, or item of  equipment installed on, the Rig unless the
            part  or item  so removed is  forthwith replaced by  a suitable
            part or  item  which is  in the  same  condition as  or  better
            condition than  the  part or  item  removed, is  free from  any
            Security Interest (other than Permitted Liens) in favor of  any
            person other  than the Mortgagee and becomes on installation on
            the Rig the property  of the Owner and subject  to the security
            constituted by this Mortgage;

      (G)   submit the  Rig to such  periodical or other surveys  as may be
            required for  classification purposes  and  if so  required  to
            supply to  the Mortgagee copies of all survey reports issued in
            respect thereof;

      (H)   permit  the representatives  of  the  Mortgagee or  independent
            surveyors representing the  Mortgagee to  board the Rig at  all
            reasonable times and upon  reasonable notice for the purpose of
            inspecting  her  condition  or for  the  purpose  of satisfying
            themselves  in regard  to proposed or  executed repairs  and to
            afford all proper facilities for such inspections;

      (I)   promptly pay and  discharge all debts, damages  and liabilities
            whatsoever  which have  given or may  give rise to  maritime or
            possessory liens  (other than  Permitted  Liens) on  or  claims
            enforceable  against  the  Rig  and  all  tolls,  dues,  taxes,
            assessments, governmental charges, fines and penalties lawfully
            charged  on or in  respect of the  Rig and all  other outgoings
            whatsoever in respect of the Rig  and in the event of arrest of
            the Rig  pursuant to  legal process,  or in  the  event of  her
            detention in exercise or purported exercise of any such lien or
            claim as  aforesaid, procure the  release of the Rig  from such
            arrest or detention forthwith upon  receiving notice thereof by
            providing bail or otherwise as the circumstances may require; 

      (J)   not  employ the Rig  or allow  her employment  in any  trade or
            business  which is  unlawful under  the  laws of  any  relevant
            jurisdiction or  in carrying illicit or prohibited  goods or in
            any  manner  whatsoever   which  may   render  her  liable   to
            destruction,  seizure  or  confiscation  and  in  the event  of
            hostilities in any part  of the world (whether war be  declared
            or not) not employ the Rig or suffer her employment in carrying
            any contraband goods or to enter or trade to any  zone which is
            declared  a war  zone  by any  government or  by the  war risks
            insurers of  the Rig unless  there shall have been  effected by
            the Owner (at its expense) such special, additional or modified
            insurance cover as the Mortgagee may require;

      (K)   Promptly to furnish to the Mortgagee all such information as it
            may  from  time  to   time  require  regarding  the   Rig,  her
            employment,  position  and  engagements,  particulars  of   all
            towages and  salvages  and  copies of  all charters  and  other
            contracts for her employment  or otherwise howsoever concerning
            her.

      (L)   To notify  the Mortgagee forthwith by cable  or telex confirmed
            by letter of:

            (i)   Any  accident  to  the  Rig  involving  repairs the  cost
                  whereof will or is likely to be a Major Casualty;

            (ii)  Any occurrence in consequence whereof  the Rig has become
                  or is likely to become a Total Loss;

            (iii) Any requirement or recommendation made  by any insurer or
                  classification society  or  by  any  competent  authority
                  which is not immediately complied with;

            (iv)  Any  arrest of  the  Rig  or the  exercise  or  purported
                  exercise of any lien on the Rig or any requisition of the
                  Rig for hire;

            (v)   any intended  dry docking  of the  Rig, as  to which  the
                  Owner  shall  give  the  Mortgagee  ten  (10) days  prior
                  notice, provided, that in  the event of any emergency dry
                  docking of the  Rig, the  Owner shall immediately  notify
                  the Mortgagee; and

            (vi)  any intended  deactivation or  lay-up of  the Rig  (other
                  than for  normal periods of  inactivity between contracts
                  for the Rig during which periods the  Rig remains manned)
                  and obtain the prior written consent of the Mortgagee;

      (M)   keep proper books of account in  respect of the Rig and as  and
            when the Mortgagee may  so reasonably require  make such  books
            available for inspection on behalf of the Mortgagee and furnish
            satisfactory evidence  that the  wages and  allotments and  the
            insurance of the master  and crew are being regularly paid  and
            that all  deductions from crew's wages in respect of tax and/or
            social security liability are being  properly accounted for and
            that the master has no claim for disbursements other than those
            incurred by him in the ordinary course of trading on the voyage
            then in progress;

      (N)   observe the  obligations contained in  Sections 7 and 8  of the
            Credit Agreement which apply to  the Rig and the Owner, and  in
            pursuance thereof such obligations shall be incorporated in and
            deemed to form part of this Mortgage mutatis mutandis; 

      (O)   not  without the  previous consent in writing  of the Mortgagee
            (such consent  not to  be unreasonably  withheld), put the  Rig
            into the possession of any person for the purpose of work being
            done upon  her in an amount  exceeding or likely  to exceed Two
            Million   Five   Hundred   Thousand   United   States   Dollars
            (US$2,500,000) (or the equivalent in any other currency) unless
            such person  shall first  have given  to the  Mortgagee and  in
            terms reasonably satisfactory  to it a written  undertaking not
            to exercise  any lien on the Rig  for the cost of  such work or
            otherwise;

        (P) Reimburse the Mortgagee promptly, with  interest at the Default
            Rate, for any and all expenditures which the Mortgagee may from
            time  to  time  make, lay  out  or  expend  in  providing  such
            protection in respect of insurance,  discharge of liens, taxes,
            dues,  assessments, governmental  charges, fines  and penalties
            lawfully imposed, repairs, attorneys' fees and other matters as
            the  Shipowner  is obligated  herein to  provide, but  fails to
            provide.  Such  obligation  of  the   Owner  to  reimburse  the
            Mortgagee shall  be an  additional  indebtedness due  from  the
            Owner, secured  by this Mortgage,  and shall be payable  by the
            Owner  on demand. The  Mortgagee, though  privileged so  to do,
            shall be  under no  obligation to the  Owner to  make any  such
            expenditures, nor shall the making thereof relieve the Owner of
            any default in that respect.

      (Q)   To pay  on demand to  the Mortgagee  (or as it may  direct) the
            amount  of all  investigation  and legal  expenses of  any kind
            whatsoever, stamp duties  (if any),  registration fees and  any
            other  charges incurred  reasonably  and in  good faith  by the
            Mortgagee  in  connection  with  the  preparation,  completion,
            enforcement  and  registration  of  the  Security Documents  or
            otherwise in connection  with the Obligations and  the security
            therefor.

      (R)   comply, or procure compliance with,  all Environmental Laws and
            Environmental Approvals relating  to the Rig, its  operation or
            management and the business of the Owner from time to time;

      (S)   notify the Mortgagee forthwith upon:

            (i)   any  Environmental   Claim  which  could   reasonably  be
                  expected to  result in  damages in  excess of  US$200,000
                  being  or  made  against  the   Owner,  or  otherwise  in
                  connection with the Rig; or

            (ii)  any  Environmental  Incident  occurring,  and  keep   the
                  Mortgagee advised, in  writing on such regular  basis and
                  in such  detail as  the Mortgagee  shall require, of  the
                  Owner's   response   to  such   Environmental  Claim   or
                  Environmental Incident;

      (T)   not sell, mortgage or transfer the Rig (other than as permitted
            by the  Credit Agreement)  without the  written consent  of the
            Mortgagee having  first been  obtained,  and any  such  written
            consent to any one such sale, mortgage or transfer shall not be
            construed to be a waiver of this provision with respect  to any
            subsequent proposed sale, mortgage or transfer.  Any such sale,
            mortgage or transfer shall be subject to the provisions of this
            Mortgage and the lien it  creates.  The Owner shall not charter
            the Rig to, or permit the Rig to serve under any contract with,
            a person  included within the definition of (i) "national" of a
            "designated  foreign   country,"   or   "specially   designated
            national" of  a "designated  foreign country,"  in the  Foreign
            Assets  Control   Regulations  or  the   Cuban  Assets  Control
            Regulations of the United States Treasury Department, 31 C.F.R.
            Parts 500 and 515, in each case as amended, (ii) "Government of
            Libya", "entity of the  Government of Libya" or "Libyan entity"
            in  the  Libyan  Sanctions  Regulations  of  the United  States
            Treasury Department,  31 C.F.R. Part 550, as  amended, or (iii)
            "Government  of Iraq",  "entity of  the Government of  Iraq" or
            "Iraqi Government  entity" in the  Iraqi Sanctions Regulations,
            56 Fed. Reg. 2112 (1991) to  be codified at 31 C.F.R. Part 575,
            as amended,  all within the  meaning of said Regulations  or of
            any regulations, interpretations  or rulings issued thereunder,
            or sail in Cuban waters or enter any Cuban port for any purpose
            or engage  in any  transaction that  violates any  provision of
            said Regulations or that violates any  provision of the Iranian
            Transactions Regulations, 31  C.F.R. Part 560, as  amended, the
            Foreign  Funds  Control  Regulations, 31  C.F.R.  Part  520, as
            amended, the Transaction  Control Regulations,  31 C.F.R.  Part
            505, as amended, the Haitian Transaction Regulations, 31 C.F.R.
            Part 580, as  amended, the Foreign Assets  Control Regulations,
            31 C.F.R. Part 500,  as amended, or Executive Orders 12810  and
            12831; if such  transaction or  violation would (i) expose  the
            Mortgagee to  any penalty,  sanction or  investigation or  (ii)
            jeopardize the  lien created by  this Mortgage or (iii)  have a
            material adverse  effect on the  Owner or the operation  of the
            Rig;

      (U)   shall not  cause or permit the Rig to be operated in any manner
            contrary to law, shall  not abandon the Rig in a  foreign port,
            shall not engage in  any unlawful trade  or violate any law  or
            carry  any  cargo  that  shall  expose  the   Rig  to  penalty,
            forfeiture or capture, and shall not do, or suffer or permit to
            be  done,  anything which  can  or  may injuriously  affect the
            registration  or  enrollment  of  the  Rig under  the  laws  of
            Australia and  will at all  times keep the Rig  duly documented
            thereunder.

6.    (A)   The Mortgagee shall  without prejudice to its  other rights and
            powers hereunder be entitled (but not bound) at any time and as
            often as may be necessary to take any such action as  it may in
            its  discretion think  fit  for the  purpose of  protecting the
            security  created  by  the  Credit  Agreement,  the  Subsidiary
            Guaranty and other Credit  Documents and each and every expense
            or liability so incurred  by the Secured Creditors in or  about
            the protection of the security shall be repayable to it by  the
            Owner on demand together  with interest thereon at the  Default
            Rate  from  the date  whereon  such  expense  or liability  was
            incurred by  the Mortgagee until the date of actual receipt (as
            well after as before any judgment).

      (B)   Without prejudice to the generality of the foregoing:

            (i)   In every case that the  provisions of Clause 5(A)  hereof
                  or any  of them shall not be complied with, the Mortgagee
                  shall  be at liberty to effect and thereafter to maintain
                  all such  insurances upon the Rig as in its discretion it
                  may think fit;

            (ii)  In the event that  the provisions of Clause 5(C) or  5(D)
                  hereof  or any  of them shall  not be complied  with, the
                  Mortgagee shall be at liberty to arrange for the carrying
                  out of  such repairs and surveys as it may deem expedient
                  or necessary;

            (iii) In the event that the provisions of Clause 5(F) hereof or
                  any of them  shall not  be complied  with, the  Mortgagee
                  shall be  at liberty to pay and discharge all such debts,
                  damages and liabilities  as are therein mentioned  and to
                  take any  such  measures  as  it may  deem  expedient  or
                  necessary for the purpose  of securing the release of the
                  Rig.

            Each  and  every  expense  or  liability  so  incurred  by  the
            Mortgagee shall be  recoverable, together with interest  at the
            Default Rate, from the Owner as provided herein.

7.    Upon the  happening of any  of the following  events (the  "Events of
      Default")  the  security  created  by   this  Mortgage  shall  become
      immediately enforceable:

      (A)   The  owner does not pay  to the Mortgagee forthwith  any sum of
            money payable under the Subsidiary Guaranty or the other Credit
            Documents.

      (B)   If the Owner is in breach of the covenants contained in Clauses
            5A, 5B, 5C, 5F, 5G, 5H, 5I, 5K, 5L, 5M, 5N or 5O.

      (C)   If the  Owner is in breach of any of the other covenants, terms
            and conditions hereof and  such breach is not remediable or  if
            it is  capable  of being  remedied,  the same  is not  remedied
            within  10  days  of  receipt  of  notice  from  the  Mortgagee
            requesting remedial action.

      (D)   It becomes  impossible or unlawful for the Owner to fulfill any
            of the covenants  and obligations  contained in the  Subsidiary
            Guaranty or  the other Credit Documents or for the Mortgagee to
            exercise  the rights  or any  of them  vested in  it  under the
            Credit Documents or otherwise.

      (E)   Anything is done or suffered or omitted to be done by the Owner
            which in  the reasonable opinion  of the  Mortgagee may imperil
            the security created  by the Subsidiary  Guaranty or  the other
            Security Documents.

      (F)   An  Event  of Default  under  the  Credit Agreement  shall have
            occurred and be continuing.

8.    Upon  the  security  created by  this  Mortgage  becoming immediately
      enforceable pursuant to Clause 7  hereof the Mortgagee may by  notice
      of default given to the Owner declare the Obligations to be forthwith
      due and  payable and the Mortgagee shall become forthwith entitled as
      and when it may see fit to put into force and exercise all the powers
      possessed by it as mortgagee  of the Rig and chargee of the  Rig, the
      insurances and the Earnings and in particular:

      (A)   To exercise  all of the rights and remedies given to mortgagees
            by the laws of the Commonwealth of Australia and the States and
            Territories of  Australia or other  applicable laws,  including
            the right to cause the Rig to be arrested and  sold by judicial
            authority.

      (B)   To take possession of the Rig.

      (C)   To  require  that  all policies,  contracts  and  other records
            relating to the Insurances or any of them (including details of
            and correspondence concerning outstanding  claims) be forthwith
            delivered  to  such  adjusters  and/or  brokers  and/or   other
            insurers as the Mortgagee may nominate.

      (D)   To  collect, recover, compromise and give  a good discharge for
            all claims  then outstanding  or thereafter  arising under  the
            Insurances and to  take over  or institute (if necessary  using
            the name  of  the  Owner) all  such proceedings  in  connection
            therewith as the  Mortgagee in  its absolute discretion  thinks
            fit  and  to permit  any  brokers  through  whom collection  or
            recovery  is  effected  to  charge  the  usual  brokerage  fees
            therefor.

      (E)   To discharge,  compound, release or  compromise claims  against
            the Owner in  respect of the Rig  which have given or  may give
            rise to any charge  or lien on the  Rig or which are or may  be
            enforceable by proceedings against the Rig.

      (F)   To  sell the  Rig or  any share therein  with or  without prior
            notice to  the Owner by  public auction or private  contract at
            home or  abroad and  upon such  terms as  the Mortgagee  in its
            absolute discretion may  determine with  power to postpone  any
            such sale and without  being answerable for any loss occasioned
            by such sale or resulting  from postponement thereof and itself
            to purchase the Rig at any  such public auction and to set  off
            the purchase price against all or any part of the Obligations.

      (G)   Pending sale  of the Rig to manage, insure, maintain and repair
            the Rig and to employ or lay up the Rig in such manner  and for
            such period  as the Mortgagee in its  absolute discretion deems
            expedient and for the purposes aforesaid the Mortgagee shall be
            entitled  to do  all acts  and things  incidental  or conducive
            thereto  and  in  particular to  enter  into  such arrangements
            respecting  the  Rig, her  insurance, management,  maintenance,
            repair, classification and employment in all respects as if the
            Mortgagee  were   the  owner  of  the  Rig  and  without  being
            responsible for any loss thereby incurred.

      (H)   To recover from the  Owner on demand any such losses  as may be
            incurred by the Mortgagee in or about the exercise of the power
            vested  in  the   Mortgagee  under  sub-clause (G)  above  with
            interest thereon  at the Default  Rate from the date  when such
            losses were  incurred by the Mortgagee until the date of actual
            receipt (as well after as before any judgment).

      (I)   To recover  from the Owner on demand all expenses, payments and
            disbursements  incurred  by  the  Mortgagee   in  or  about  or
            incidental to the exercise by it of any of the powers aforesaid
            together  with interest  thereon at  the Default Rate  from the
            date  when  such   expenses,  payments  or  disbursements  were
            incurred by  the Mortgagee until the date of actual receipt (as
            well after as before any judgment).

PROVIDED ALWAYS that upon any  sale of the Rig or any share therein  by the
Mortgagee pursuant to sub-clause (F) above the purchaser shall not be bound
to see or inquire whether the Mortgagee's  power of sale has arisen in  the
manner herein provided and the sale of the Rig shall be deemed to be within
the  power of  the  Mortgagee and  the  receipt  of the  Mortgagee for  the
purchase money shall effectively  discharge the purchaser thereof who shall
not be concerned with  the manner of application of the proceeds of sale or
be in any way answerable therefor.

9.    Upon  the  security  created by  this  Mortgage  becoming immediately
      enforceable  pursuant  to clause  7  hereof,  the Mortgagee  shall be
      entitled  to appoint  a receiver or  manager or receiver  and manager
      (the  "Receiver") of  the Rig  and  the freights,  hire,  insurances,
      revenues,  income and profits due  or to become due  and arising from
      the operation  of the Rig.   Any  Receiver so appointed shall  be the
      agent of  the Owner  unless at  any time otherwise  specified by  the
      Mortgagee.    The   Owner  shall  be   solely  responsible   for  the
      remuneration, costs  and expenses of the Receiver.  The Mortgagee may
      at any time terminate the  appointment of the Receiver.   In addition
      to all  the rights and powers conferred on the Receiver at law and in
      equity,  a Receiver shall  be entitled to exercise  all of the powers
      and rights  conferred upon the  Mortgagee under this Mortgage  or any
      other Credit Document.

10.   (a)   All moneys received by the Mortgagee in respect  of any sale by
            it of the Rig or any share therein or otherwise pursuant to the
            provisions of this Mortgage shall be place to pay or retain all
            such  payments, disbursements,  expenses and  losses whatsoever
            (together with interest thereon as provided herein) as may have
            been incurred by the Mortgagee in or about or incidental to the
            exercise  by  the  Mortgagee  of  the  powers  applied  in  the
            following manner:

            (i)   first, to the payment  of all amounts owing the Mortgagee
            of the type described in clauses (ii) and (iii) of Recital 5;

            (ii)  second, to the extent moneys remain after the application
            pursuant to  the preceding clause  (i), an amount equal  to the
            outstanding Obligations shall be paid  to the Secured Creditors
            as  provided  in  Clause  10(c),  with  each  Secured  Creditor
            receiving an amount equal to such Obligations held by it or, if
            the   proceeds  are  insufficient  to  pay  in  full  all  such
            Obligations,  its Pro  Rata  Share (as  defined  below)  of the
            amount remaining to be distributed; and

            (iii) third, to the extent moneys  remain after the application
            pursuant  to the preceding clauses  (i) and (ii), and following
            the  termination of  this Mortgage  pursuant to  Clause  3, any
            surplus  then remaining shall  be paid  to the  Owner, subject,
            however, to the  rights of the holder of any then existing Lien
            of   which   the   Mortgagee   has   actual   notice   (without
            investigation).

      (b)   For purposes of this Mortgage "Pro Rata Share" shall mean, when
            calculating a Secured Creditor's portion of any distribution or
            amount in  respect of any Obligations, the amount (expressed as
            a percentage) equal to a fraction the numerator of which is the
            then unpaid amount of such Obligations owing to or held by such
            Secured  Creditor  and  the denominator  of which  is  the then
            outstanding amount  of all  such Obligations.  For  purposes of
            determining the amount  payable to  each Secured Creditor,  the
            Mortgagee shall be entitled to request each Secured Creditor to
            furnish it  with written notice  of the  amount of  Obligations
            then owed to it and shall be entitled to reply upon the amounts
            stated therein in making such distribution.

      (c)   All payments required to be made to Secured Creditors hereunder
            shall  be made  to the  Administrative  Agent under  the Credit
            Agreement for the account of the Secured Creditors.

      (d)   For purposes of  applying payments received in  accordance with
            this Clause 10, the  Mortgagee shall be entitled to reply  upon
            (i) the  Administrative Agent  under the  Credit Agreement  and
            (ii)  the  Secured  Creditors for  a  determination  (which the
            Administrative  Agent  and  each  Secured  Creditor,  by  their
            acceptance of the benefits of this Mortgage shall be  obligated
            to provide upon  request of  the Mortgagee) of the  outstanding
            Obligations  owed to  the  Secured Creditors.    Unless  it has
            actual  knowledge (including by  way of  written notice  from a
            Secured  Creditor)  to the  contrary, the  Administrative Agent
            under the Credit  Agreement, in furnishing information pursuant
            to  the  preceding  sentence,  and  the  Mortgagee,  in  acting
            hereunder, shall  be entitled  to  assume that  no  obligations
            other than principal, interest and  regularly accruing fees are
            owing to any Secured Creditor.

11.   No delay  or omission of the Mortgagee to exercise any right or power
      vested  in  it under  the  Subsidiary Guaranty  or  the other  Credit
      Documents shall  impair  such right  or power  or be  construed as  a
      waiver of or an acquiescence in any default by the Owner and in event
      of the  Mortgagee at  any time agreeing  to waive  any such  right or
      power such waiver shall be revocable by the Mortgagee at any time and
      the right or power  shall thenceforth be again exercisable as  though
      there had been no such waiver.

12.   The Mortgagee shall  be entitled at any  time and as often  as may be
      expedient to delegate all or any of the powers and discretions vested
      in  it  by the  Subsidiary  Guaranty or  the  other Credit  Documents
      (including the power vested in it  by virtue of Clause 14 hereof)  in
      such manner  upon such terms and to such  persons as the Mortgagee in
      its absolute discretion may think fit.

13.   (A)   The Owner  will indemnify and save harmless each of the Secured
            Creditors  and  each  agent  or  attorney  appointed  under  or
            pursuant  to  this  Mortgage (each  an  "Indemnitee")  from and
            against any  and  all expenses,  claims,  liabilities,  losses,
            taxes, costs, duties,  fees and  charges suffered, incurred  or
            made by such Secured Creditor or such agent or attorney in good
            faith:

            (a)   in the  exercise or  purported  exercise of  any  rights,
                  powers or  discretions vested  in them  pursuant to  this
                  Mortgage; or

            (b)   in the preservation  or enforcement  of the rights  under
                  this Mortgage of the Mortgagee; or

            (c)   on the  release of the  Rig from the security  created by
                  this Mortgage,

      and the Secured Creditors and each such agent or  attorney may retain
      and pay all  sums in respect of the same  out of money received under
      the powers  conferred by this Mortgage.  All such amounts recoverable
      by  such  Secured  Creditors or  such  agent  or  attorney  shall  be
      recoverable on a full indemnity basis.

      (B)   Without limiting the  foregoing Clause 13(A), the  Owner hereby
            further indemnifies  and holds  harmless  each of  the  Secured
            Creditors and their  respective officers, directors, employees,
            attorneys and agents from and  against any and all liabilities,
            losses, obligations,  claims,  damages,  penalties,  causes  of
            action,  costs  and  expenses (including,  without  limitation,
            reasonable  attorneys'  fees  and  expenses,  consultant  fees,
            investigation and laboratory fees) imposed  upon or incurred by
            or asserted  against them, or any of them,  by reason of (a) an
            actual,  alleged or threatened Environmental  Incident; (b) any
            personal injury  (including wrongful death)  or property damage
            (real or personal) or economic damage arising out of or related
            to such  Environmental Incident;  (c) any  Environmental  Claim
            brought  or  threatened,  or  settlement  reached;  or (d)  any
            violation of laws, orders, regulations, requirements or demands
            of governmental authorities relating to Hazardous Materials at,
            or discharged from the Rig.

      (C)   If,  under  any  applicable  law  or  regulation,  and  whether
            pursuant  to a  judgment being  made or registered  against the
            Owner or the liquidation of  the Owner or for any other reason,
            any payment under or  in connection with this Mortgage is  made
            or fails to be satisfied in a currency (the "payment currency")
            other than  the currency in which such payment  is due under or
            in connection with  this Mortgage (the "contractual currency"),
            then  to the  extent that the  amount of such  payment actually
            received by the Mortgagee, when  converted into the contractual
            currency at the rate of exchange, falls short of the amount due
            under or  in connection  with this  Mortgage, the  Owner, as  a
            separate and  independent obligation, shall  indemnify and hold
            harmless the Mortgagee  against the  amount of such  shortfall.
            For the purposes of this Clause C, "rate of exchange" means the
            rate at which the Mortgagee is able on the date of such payment
            (or, if  it is not  practicable for the Mortgagee)  to purchase
            the contractual currency with  the payment currency on the date
            of  such payment, at the rate of exchange as soon afterwards as
            is practicable  for the  Mortgagee to  do so)  to purchase  the
            contractual currency with  the payment currency and  shall take
            into  account any  premium  and other  costs  of  exchange with
            respect thereto.

14.   (A)   The Owner  hereby irrevocably  appoints  the Mortgagee  as  its
            attorney-in-fact for the duration of the Credit Facility Period
            for the purpose of doing in  its name all acts which the  Owner
            itself  could  do  in  relation  to  the  Rig, the  Requisition
            Compensation  and  the  Insurances  and the  Earnings  PROVIDED
            HOWEVER that  such  power shall  not  be exercisable  by or  on
            behalf of the Mortgagee  unless an Event of Default shall  have
            occurred.

      (B)   The exercise of  such power by  or on  behalf of the  Mortgagee
            shall not  put any person  dealing with the Mortgagee  upon any
            inquiry as  to whether  an Event  of Default  has occurred  nor
            shall  such person  be in  any way  affected by notice  that an
            Event of  Default  has not  occurred  and the  exercise by  the
            Mortgagee  of such power  shall be  conclusive evidence  of its
            right to exercise the same.

15.   The Owner  hereby further undertakes  at its own expense  to execute,
      sign, perfect,  do and  (if  required) register  every  such  further
      assurance, document, act or thing  as in the opinion of the Mortgagee
      may  be necessary  or desirable for  the purpose of  more effectually
      mortgaging  and  charging   the  Rig   or  perfecting  the   security
      constituted  by  the  Subsidiary  Guaranty  and  the  other  Security
      Documents.

16.   The  Owner covenants  with the Mortgagee  that it will  indemnify the
      Mortgagee and hold it harmless against any loss or damage or expenses
      which  consequent  upon  a judgment  being  obtained  or  enforced in
      respect of the non-payment by the  Owner of any amount due under  the
      Subsidiary Guaranty and the other Credit Documents arises or  results
      from any variation in rates  of exchange between U.S. Dollars and the
      currency in which such judgment was obtained  between the date of the
      said amounts becoming  due (or the  date of  the said judgment  being
      obtained as the case  may be) and the date of  actual payment thereof
      and this indemnity  shall not be  affected by any time  or indulgence
      granted  to the  Owner from time to  time and shall  continue in full
      force  and  effect  notwithstanding  any  judgment  in favor  of  the
      Mortgagee.

17.   (A)   This Mortgage shall  be construed and enforceable  according to
            the laws of the Australian Capital Territory, Australia.

      (B)   The Owner  agrees  that the  Mortgagee shall  have liberty  but
            shall  not be obliged to take any  proceedings in the Courts of
            any  country  to   protect  or  enforce  the   security  hereby
            constituted or  to enforce  any  provisions of  the  Subsidiary
            Guaranty  and the other Credit Documents  or to recover payment
            of the Obligations and  for the purpose of any proceedings  for
            the enforcement  of the Subsidiary Guaranty or the other Credit
            Documents the Owner  hereby submits to the  jurisdiction of the
            Courts of any country of the choice of the Mortgagee.

18.   All communications  provided for  or permitted hereunder shall  be in
      writing  or by telex  or telefax  confirmed in  writing and  shall be
      delivered, air mailed, telexed or telefaxed to the addresses provided
      for in Section 12.03 of the Credit Agreement:

19.   In accordance with section 282 of  the Corporation Law (as set out in
      section  82 of  the Corporation  Act 1989  (Western  Australia)), the
      maximum prospective liability secured by this  Mortgage will be (U.S.
      $350,000,000) Three Hundred Fifty Million  United States Dollars, but
      this clause  shall not  limit the  amount secured  by or  recoverable
      under this Mortgage or any other Credit Document.

      IN  WITNESS WHEREOF  Reading &  Bates (A)  Pty. Ltd. has  caused this
Mortgage to be executed by on the day and year first above written.


THE COMMON SEAL OF            )
READING & BATES (A)           )
PTY LTD (ACN                  ) 
064 532 252) was              )
affixed by the authority of   )
the Board of Directors in the )
presence of:                  ) 


                                                                           
         
Signature of Secretary        Signature of Director


                                                                           
         
Name of Secretary         Name of Director


Accepted and Agreed:

CHRISTIANIA BANK OG KREDITKASSE,
   NEW YORK BRANCH


By: ____________________________________
     Title:


Accepted and Agreed:

CHRISTIANIA BANK OG KREDITKASSE,
   NEW YORK BRANCH


By: ____________________________________
     Title:


                    SCHEDULE I hereinbefore referred to



      The offshore drilling rig "RON TAPPMEYER" of the following dimensions
and tonnages:

                  Tons Gross approx.           11,455
                  Tons Net approx.              3,436

having  Official  Number  855213  at  the Registry  of  Ships  in Canberra,
Australia.

                                SCHEDULE II


                 AUSTRALIAN SHIPPING REGISTRATION ACT 1981


Particulars under section 38(2)


1.    Name and Official Number:

      "RON TAPPMEYER", Australian Official No. 855213.

2.    The number of shares affected - 64

3.    Name and address of the mortgagor

            Reading & Bates (A) Pty. Ltd., a company organized and existing
            under  the  laws of  the  State of  Western  Australia and  the
            Commonwealth of Australia  and having its registered  office at
            66 Kings Park Road, West Perth, Western Australia.

4.    Name and address of the mortgagee:

            Christiania Bank og Kreditkasse,  New York Branch, 11 West 42nd
            Street, 7th Floor, New York, NY  10036


Signed by READING & BATES (A) PTY. LTD. by ________________________________
                                           Its:  Attorney-in-Fact


                               ACKNOWLEDGMENT


STATE OF NEW YORK     )
                      :  ss.:
COUNTY OF NEW YORK    )



      On  the 13th day  of November,  1996, before me  personally came T.W.
Nagle, to me  known, who being by me duly sworn did  depose and say that he
resides at 13307 Tosca Lane, Houston, TX; that he is a Director for READING
& BATES (A) PTY. LTD., the corporation described in and  which executed the
above First Priority Mortgage; and that he signed his name thereto pursuant
to authority granted to him by the Board of Directors of said corporation.



                              _________________________________
                                        Notary Public


                               ACKNOWLEDGMENT



STATE OF NEW YORK     )
                      :  ss.:
COUNTY OF NEW YORK    )


      On  the 13th day  of November,  1996, before me  personally came Hans
Chr. Kjelsrud, to me known,  who being by me duly sworn did depose  and say
that he resides at 115  East 87th Street, New  York, NY; that he is  a Vice
President for CHRISTIANIA BANK OG KREDITKASSE, the corporation described in
and which  executed the above First  Priority Mortgage; and  that he signed
his name  thereto pursuant  to authority  granted to  him by  the Board  of
Directors of said corporation.


                              _________________________________
                                               Notary Public



                               ACKNOWLEDGMENT

STATE OF NEW YORK     )
                      :  ss.:
COUNTY OF NEW YORK    )

      On the 13th  day of November, 1996, before me  personally came Justin
McCarty, III, to me  known, who being by  me duly sworn did depose and  say
that  he resides  at 35  Pleasant Street,  Katonah, NY; that  he is  a Vice
President for CHRISTIANIA BANK OG KREDITKASSE, the corporation described in
and  which executed the above  First Priority Mortgage; and  that he signed
his name  thereto pursuant  to authority  granted to  him by  the Board  of
Directors of said corporation.



                              _________________________________
                                          Notary Public



                                                                Exhibit 10.133
 
                               PLEDGE AGREEMENT


            PLEDGE  AGREEMENT,  dated as  of  November 13,  1996  (as amended,
modified or  supplemented from  time to time,  this "Agreement"), made  by the
undersigned  pledgor  (the  "Pledgor"),  in  favor  of   CHRISTIANIA  BANK  OG
KREDITKASSE, NEW YORK  BRANCH, as  Collateral Agent (the  "Pledgee"), for  the
benefit of  the Creditors (as  defined below).   Except  as otherwise  defined
herein, terms  used herein  and defined in  the Credit  Agreement (as  defined
below) shall be used herein as therein defined.


                             W I T N E S S E T H :


            WHEREAS,  Reading &  Bates Drilling  Corporation, Reading  & Bates
Drilling  Co. (the  "Borrower"), various  financial institutions from  time to
time party thereto (the "Banks"), Banque Indosuez and Credit Lyonnais New York
Branch, as Documentation Agents  (the "Documentation Agents"), and Christiania
Bank  og Kreditkasse  as  Administrative Agent  (together  with any  successor
agent,  the  "Administrative  Agent," and  together  with  the  Banks and  the
Documentation Agents, the  "Creditors"), have entered into a Credit Agreement,
dated as of November 13, 1996  (as amended, modified or supplemented from time
to time,  the "Credit Agreement"), providing  for the making of  Loans and the
issuance of, and participation in, Letters of Credit as contemplated therein;

            WHEREAS,  the Pledgor  is a  Guarantor of  the obligations  of the
Borrower under the Credit Agreement;

            WHEREAS, it  is a condition  precedent to the making  of Loans and
issuances  of Letters of  Credit under the  Credit Agreement that  the Pledgor
shall have executed and delivered to the Pledgee this Agreement;

            WHEREAS, the Pledgor desires to execute this Agreement to  satisfy
the conditions described in the preceding paragraph; and


            NOW,  THEREFORE, in consideration of the  benefits accruing to the
Pledgor, the receipt  and sufficiency  of which are  hereby acknowledged,  the
Pledgor  hereby  makes the  following  representations and  warranties  to the
Pledgee and hereby covenants and agrees with the Pledgee as follows:

            1.   SECURITY  FOR OBLIGATIONS.   This  Agreement  is made  by the
Pledgor for the benefit of the Creditors to secure:

           (i)  the Pledgor's guaranty of the full and prompt payment when due
      (whether  at the stated maturity,  by acceleration or  otherwise) of all
      obligations and liabilities of  the Borrower, now existing or  hereafter
      incurred under, arising out of or in connection with any Credit Document
      to which the Borrower is a party and the due  performance and compliance
      by the Pledgor and the Borrower with the terms of each Credit Document;

          (ii)  any and all sums advanced by the Pledgee in order  to preserve
      the  Collateral  (as  hereinafter  defined)  or  preserve  its  security
      interest in the *Collateral;

         (iii)  in   the  event  of  any  proceeding  for  the  collection  or
      enforcement of any indebtedness, obligations, or liabilities referred to
      in  clauses (i)  and (ii) above,  after an  Event of  Default shall have
      occurred  and  be  continuing,  the  reasonable  expenses  of  retaking,
      holding,  preparing for sale or lease, selling or otherwise disposing or
      realizing on  the Collateral, or of  any exercise by the  Pledgee of its
      rights  hereunder, together  with reasonable  attorneys' fees  and court
      costs; and

          (iv)  all amounts paid by any Creditor as to which such Creditor has
      the right to reimbursement under Section 10 of this Agreement;

all such obligations, liabilities, sums and expenses set forth in clauses  (i)
through   (iv)  of  this  Section  1  being  herein  collectively  called  the
"Obligations."   The  maximum  amount  secured  under  this  Agreement  is  US
$300,000,000, plus any accrued and unpaid interest, fees and expenses.

            2.  DEFINITION OF SHARES.  As used herein the  term "Shares" shall
mean all of  the issued and  outstanding shares of  capital stock at  any time
owned by the Pledgor  of Arcade Drilling, AS, a company  formed under the laws
of Norway (the  "Pledged Company").  The Pledgor represents  and warrants that
on the date hereof such shares  constitute 74.4% of the issued and outstanding
capital stock of the Pledged Company.

            3.  PLEDGE OF THE VPS ACCOUNT.

            3.1.  Pledge.  To secure the Obligations and for the purposes  set
forth in Section 1 hereof, the Pledgor hereby pledges to and deposits with the
Pledgee all  of the Shares of the Pledged Company  which are registered in the
Pledgor's VPS account number  05201.0184837 (the "VPS Account"),  and delivers
to  the Pledgee a duly  executed mortgage deed in the  form of Annex A hereto.
The  Pledgor represents  and  warrants that  on the  date  hereof, the  Shares
registered in the  VPS Account constitute  65% of  the issued and  outstanding
capital stock of the Pledged Company.

            3.2.  Subsequently Acquired Shares.   If the Pledgor shall acquire
(by  purchase, stock  dividend  or otherwise)  any  additional shares  of  the
Pledged  Company at  any  time or  from  time to  time after  the  date hereof
("Additional  Shares"), the Pledgor will  forthwith pledge to  the Pledgee and
deposit into the VPS Account as many of such Additional Shares as is necessary
to maintain the number  of Shares in the VPS  Account at not less than  65% of
the total capital shares  of the Pledged Company, and will promptly thereafter
deliver to the Pledgee a certificate executed by any Authorized Officer of the
Pledgor  describing such Additional Shares  and certifying that  the same have
been duly pledged and deposited with the Pledgee hereunder.

            3.3.  Definition  of Pledged Shares and Collateral.  All Shares at
any time  pledged or required to  be pledged hereunder are  hereinafter called
the  "Pledged Shares," which together with all proceeds thereof, including any
securities and moneys  received and at the time held  by the Pledgee hereunder
and all Dividends and Distributions  on or with respect to any  Pledged Shares
is hereinafter called the "Collateral".  As used herein the term (i) Dividends
shall  mean  all  stock  dividends,  liquidating  dividends,  shares of  stock
resulting from  stock splits,  reclassifications, warrants,  options, non-cash
dividends and  other  distributions  (whether similar  or  dissimilar  to  the
foregoing) on or with respect to any Pledged Shares or other shares of capital
stock constituting  Collateral,  but shall  not  mean Distributions  and  (ii)
Distributions  shall mean  all  cash  dividends  and cash  distributions  with
respect to any Pledged Shares.

            4.   VOTING, ETC., WHILE NO NOTICED  EVENT OF DEFAULT.  Unless and
until a  Noticed Event of Default  shall have occurred and  be continuing, the
Pledgor shall  be entitled to exercise any and all voting and other consensual
rights  pertaining to the Pledged Shares and  to give all consents, waivers or
ratifications in respect thereof; provided, that  no vote shall be cast or any
consent, waiver or ratification given or any action  taken which would violate
or be inconsistent with any of the terms of this Agreement or any other Credit
Document, or which would  have the effect of impairing  the rights, priorities
or remedies of the  Pledgee or any other Creditor under  this Agreement or any
other Credit  Document.  All such  rights of the  Pledgor to vote and  to give
consents, waivers and  ratifications shall cease  in case  a Noticed Event  of
Default  shall occur  and  be continuing,  and Section  6 hereof  shall become
applicable.  As used  herein, a "Noticed Event of  Default" shall mean (i)  an
Event of Default with respect to any Borrower under Section 9.05 of the Credit
Agreement and (ii) any other Event of Default in respect  of which the Pledgee
has given the Pledgor notice that such Event of Default constitutes a "Noticed
Event of Default".  Immediately following the occurrence of a Noticed Event of
Default,  the  Pledgor shall  give the  Pledgee a  signed  and dated  power of
attorney  granting the Pledgee the right to  vote all of the Pledged Shares in
respect of each and every future shareholders meeting.

            5.  DIVIDENDS AND OTHER DISTRIBUTIONS.   Unless a Noticed Event of
Default  shall have occurred and be  continuing, all cash dividends payable in
respect of the Pledged Shares shall be paid to the Pledgor.  The Pledgee shall
also  be  entitled to  receive directly  or  by way  of  deposit into  the VPS
Account, and to retain as part of the Collateral:

           (i)  all  other or additional stock or other securities or property
      (other than cash) paid or distributed by way of dividend or otherwise in
      respect of the Pledged Shares; and

          (ii)  all other or additional stock or other securities or  property
      (including cash) paid or distributed in respect of the Pledged Shares by
      way of stock-split, spin-off, split-up, reclassification, combination of
      shares or similar rearrangement.

            6.   REMEDIES  IN CASE  OF NOTICED  EVENT OF DEFAULT.   In  case a
Noticed Event of Default  shall have occurred  and be continuing, the  Pledgee
shall be entitled to exercise all of the rights, powers  and remedies (whether
vested in it by this Agreement or by any other Credit Document or by  law) for
the protection and enforcement of its rights in respect of the Collateral, and
the Pledgee shall be  entitled, without limitation, to exercise  the following
rights, which the Pledgor hereby agrees to be commercially reasonable:

           (i)  to receive  all amounts payable in  respect of  the Collateral
      payable to the Pledgor under Section 5 hereof;

          (ii)  to sell all or part of  the Pledged Shares through  a licensed
      securities  firm in  accordance  with the  Norwegian Enforcement  Act of
      1992;

         (iii)  to transfer  all or  any part of  the Pledged  Shares into the
      Pledgee's name  or  the name  of its  nominee or  nominees (the  Pledgee
      agrees  to promptly  notify the Pledgor  after such  transfer; provided,
      however, that  the failure  to give  such  notice shall  not affect  the
      validity of such transfer);

          (iv)   to vote all or any part of the Pledged Shares 

            7.  REMEDIES,  ETC., CUMULATIVE.  Each right,  power and remedy of
the Pledgee provided for in this Agreement or any other Credit Document now or
hereafter existing at law or in equity  or by statute shall be cumulative  and
concurrent and  shall be  in  addition to  every other  such  right, power  or
remedy.  The exercise or beginning of the exercise by the Pledgee or any other
Creditor of any one or more of the rights, powers or  remedies provided for in
this Agreement  or any other Credit  Document or now or  hereafter existing at
law  or  in  equity  or  by  statute  or  otherwise  shall  not  preclude  the
simultaneous  or later exercise  by the Pledgee  or any other  Creditor of all
such other rights, powers or remedies, and no failure or delay on the  part of
the Pledgee or any other Creditor to exercise any such right,  power or remedy
shall operate  as a waiver thereof.   The Creditors agree  that this Agreement
may be enforced only by the action of the Collateral Agent  or the Pledgee, in
each case acting upon the instructions of the Required Banks and that no other
Creditor shall  have any right individually  to seek to enforce  or to enforce
this Agreement or to realize upon the security to be  granted hereby, it being
understood and  agreed that such rights  and remedies may be  exercised by the
Collateral  Agent for  the benefit  of the  Creditors upon  the terms  of this
Agreement.

            8.  APPLICATION OF  PROCEEDS.  (a)   All moneys  collected by  the
Pledgee upon any sale or  other disposition of the Collateral pursuant  to the
terms  of this  Agreement,  together with  all  other moneys  received  by the
Pledgeehereunder, shallbe appliedinthe mannerprovided inthe SecurityAgreement.

            (b)  It  is understood and  agreed that  the Pledgor shall  remain
liable to the extent of  any deficiency between the amount of the  proceeds of
the Collateral hereunder and  the aggregate amount  of the Obligations of  the
Pledgor.

            9.   PURCHASERS OF COLLATERAL.  Upon any sale of the Collateral by
the Pledgee hereunder (whether by virtue of the power of  sale herein granted,
pursuant to judicial process or otherwise),  the receipt of the Pledgee or the
officer making  the sale shall be  a sufficient discharge to  the purchaser or
purchasers of the Collateral so sold,  and such purchaser or purchasers  shall
not be  obligated to see to the application of  any part of the purchase money
paid over to the Pledgee or such officer  or be answerable in any way for  the
misapplication or nonapplication thereof.

            10.   INDEMNITY.  (a)  The Pledgor agrees  to indemnify, reimburse
and  hold the Collateral Agent,  each Creditor and  its respective successors,
assigns,  employees,  agents and  servants  (hereinafter  in this  Section  10
referred to  individually as "Indemnitee," and  collectively as "Indemnitees")
harmless as set forth in Section 12.01 of the Credit Agreement.

            (b)   Without limiting the application  of Section 10, the Pledgor
agrees to pay, or reimburse the Collateral Agent for (if  the Collateral Agent
shall have incurred  fees, costs or  expenses because  the Pledgor shall  have
failed  to comply  with  its obligations  under this  Agreement or  any Credit
Document) any and all reasonable fees, costs and expenses of  whatever kind or
nature incurred in connection with the creation, preservation or protection of
the Collateral Agent's  Liens on,  and security interest  in, the  Collateral,
including,  without limitation,  all reasonable fees  and taxes  in connection
with the recording or filing  of instruments and documents in public  offices,
payment  or  discharge of  any  taxes  or  Liens upon  or  in  respect of  the
Collateral,  premiums for  insurance with  respect to  the Collateral  and all
other  reasonable fees,  costs  and expenses  in  connection with  protecting,
maintaining or preserving  the Collateral and the Collateral  Agent's interest
therein, whether through judicial proceedings or otherwise, or in defending or
prosecuting any  actions, suits or  proceedings arising out of  or relating to
the Collateral.

            (c)   Without limiting  the application  of Section 10(a)  or (b),
the Pledgor  agrees to pay, indemnify  and hold each Indemnitee  harmless from
and  against any loss,  costs, damages and expenses  which such Indemnitee may
suffer, expend or  incur in consequence of or growing  out of any misrepresen-
tation by the Pledgor in this  Agreement or in any writing contemplated  by or
made or delivered pursuant to or in connection with this Agreement.

            (d)   If and to  the extent  that the obligations  of the  Pledgor
under this Section  11 are unenforceable  for any reason,  the Pledgor  hereby
agrees to  make the maximum  contribution to the  payment and satisfaction  of
such obligations which is permissible under applicable law.

            (e)   Any  amounts  paid  by  any  Indemnitee  as  to  which  such
Indemnitee has the right to reimbursement shall constitute Obligations secured
by the Collateral.  The indemnity obligations of the Pledgor contained in this
Section 10  shall continue in full  force and effect  notwithstanding the full
payment of all the  Notes issued under the Credit Agreement and the payment of
all other Obligations and notwithstanding the discharge thereof.

            11.   THE PLEDGEE AS COLLATERAL  AGENT.  The Pledgee  will hold in
accordance with  this  Agreement  all items  of  the Collateral  at  any  time
received under this Agreement.  It is expressly understood and agreed that the
obligations of the  Pledgee as holder of the Collateral  and interests therein
and  with respect  to  the  disposition  thereof,  and  otherwise  under  this
Agreement, are only those expressly set forth in this Agreement.   The Pledgee
shall  act hereunder  on the  terms  and conditions  set forth  herein and  in
Section 11 of the Credit Agreement.

            12.   REPRESENTATIONS, WARRANTIES AND  COVENANTS OF PLEDGOR.   The
Pledgor  represents, warrants and  covenants that (i) it  is the legal, record
and  beneficial owner  of, and has  good and  marketable title  to, all Shares
pledged by it hereunder; (ii) no  consent of any other party (including, with-
out  limitation, any  stockholder or  creditor of  the Pledgor  or any  of its
Subsidiaries (including the Pledged Company)) and no consent, license, permit,
approval   or  authorization  of,  exemption  by,  notice  or  report  to,  or
registration,  filing  or  declaration  with, any  governmental  authority  is
required  to be  obtained by  the  Pledgor in  connection with  the execution,
delivery or  performance of this Agreement, or in connection with the exercise
of its rights and remedies pursuant to this Agreement, except those which have
been obtained or  made or as may be  required by laws affecting the  offer and
sale of securities generally in connection with the exercise by the Pledgee of
certain of its remedies hereunder and (iii) all the Shares have been  duly and
validly issued, are fully  paid and nonassessable.  The  Pledgor covenants and
agrees that it will defend the Pledgee's right, title and security interest in
and to the Shares  and the proceeds thereof against the claims  and demands of
all persons whomsoever; and the Pledgor covenants and agrees that it will have
like title to  and right to  pledge any other  property at any time  hereafter
pledged to the Pledgee  as Collateral hereunder  and will likewise defend  the
right  thereto and  security interest  therein of  the  Pledgee and  the other
Creditors.

            13.  TERMINATION,  RELEASE.  (a)  After  the Termination Date  (as
defined below), this Agreement shall terminate (provided that  all indemnities
set forth herein  including, without  limitation, in Section  10 hereof  shall
survive any such termination) and  the Pledgee, at the request and  expense of
the  Pledgor, will  promptly  execute  and deliver  to  the  Pledgor a  proper
instrument or  instruments acknowledging  the satisfaction and  termination of
this  Agreement, and  will duly assign,  transfer and  deliver to  the Pledgor
(without  recourse and  without any  representation or  warranty) such  of the
Collateral  as  may  be in  the  possession  of  the Pledgee  and  as  has not
theretofore  been sold  or  otherwise applied  or  released pursuant  to  this
Agreement.  As used in this Agreement, "Termination Date" shall  mean the date
upon which  the Total  Commitment has  been terminated, no  Note or  Letter of
Credit is outstanding and all other Obligations then due and payable have been
paid in full.

            (b)   In the  event that  any part  of the  Collateral is  sold in
connection with a sale permitted by Section 8.02 of the Credit Agreement or is
otherwise released at the direction of the Required Banks (or all the Banks if
required  by Section  12.12  of the  Credit  Agreement), the  Pledgee,  at the
request  and expense of the Pledgor will  duly assign, transfer and deliver to
the Pledgor (without recourse and without any representation or warranty) such
of the Collateral as  is then being (or has  been) so sold or released  and as
may  be in  possession of the  Pledgee and  has not  theretofore been released
pursuant to this Agreement.

            (c)   At  any time  that the  Pledgor desires  that  Collateral be
released as provided  in the foregoing Section 13(a) or  (b), it shall deliver
to the  Pledgee a certificate signed  by an Authorized Officer  of the Pledgor
stating that the  release of the  Collateral is permitted pursuant  to Section
13(a) or (b).

            14.  NOTICES, ETC.  All notices and other communications hereunder
shall be in  writing and shall  be delivered  or mailed by  first class  mail,
postage prepaid, addressed:

            (a)   if to  the Pledgor,  at its address  set forth  opposite its
      signature below;

            (b)  if to the Pledgee, at:

                  Christiania Bank og Kreditkasse
                    New York Branch
                  11 West 42nd St.
                  New York, New York  10036
                  Attention: Hans Chr. Kjelsrud

            (c)  if to any  Bank (other than the Pledgee), at  such address as
      such Bank shall have specified in the Credit Agreement;

or at such other address as shall have been furnished in writing by any Person
described above to the party required to give notice hereunder.

            15.  WAIVER; AMENDMENT.  None  of the terms and conditions of this
Agreement may be changed,  waived, modified or varied in any manner whatsoever
unless in writing duly signed by the Pledgor and the Pledgee (with the written
consent  of the Required Banks (or all the  Banks if required by Section 12.12
of the Credit Agreement)).

            16.   MISCELLANEOUS.   This  Agreement shall  be binding  upon the
successors and assigns of the Pledgor and shall inure to the benefit of and be
enforceable by the  Pledgee and its  successors and  assigns.  THIS  AGREEMENT
SHALL TO THE  EXTENT POSSIBLE BE CONSTRUED IN ACCORDANCE  WITH AND GOVERNED BY
THE LAW OF  THE STATE OF NEW  YORK, though the enforcement  hereof and certain
remedies available hereunder may be  governed by Norwegian law.   The headings
in this Agreement are  for purposes of reference  only and shall not limit  or
define the meaning hereof.   This Agreement may be  executed in any number  of
counterparts,  each of  which shall  be an  original, but  all of  which shall
constitute one instrument.


            IN WITNESS WHEREOF, the  Pledgor and the Pledgee have  caused this
Agreement to be executed by their  duly elected officers duly authorized as of
the date first above written.



   Address:
   901 Threadneedle
   Houston, Texas  77079
   Telephone No.: (713) 492-5000
   Telecopier No.:(713) 492-0285


   READING & BATES CORPORATION


   By_________________________
     Title:          
   
                                             CHRISTIANIA BANK OG KREDITKASSE,
                                             NEW YORK BRANCH
                                               as Pledgee


                                             By____________________________
                                                Title:


                                             By____________________________
                                                 Title:


                                                                 ANNEX A      
                                                                   to        
                                                            PLEDGE AGREEMENT


                         FORM OF MORTGAGE DEED



                                                               Exhibit 10.134


                          LETTER OF CREDIT AGREEMENT

                                     among

                         READING & BATES CORPORATION,

                         READING & BATES DRILLING CO.,

                                      and

                       CHRISTIANIA BANK OG KREDITKASSE,
                                NEW YORK BRANCH

                     ____________________________________

                         Dated as of December 30, 1996

                     ____________________________________

==============================================================================
                                                                              
                               TABLE OF CONTENTS

                                                                          Page

SECTION 1.  Letters of Credit . . . . . . . . . . . . . . . . . . . . . .    1
      1.01  Letters of Credit . . . . . . . . . . . . . . . . . . . . . .    1
      1.02  Letter of Credit Requests; Request for Issuance of Letter of
              Credit  . . . . . . . . . . . . . . . . . . . . . . . . . .    2
      1.03  Agreement to Repay Letter of Credit Payments  . . . . . . . .    2
      1.04  Increased Costs . . . . . . . . . . . . . . . . . . . . . . .    3
      1.05  Indemnities . . . . . . . . . . . . . . . . . . . . . . . . .    4

SECTION 2.  Fees; Commitments . . . . . . . . . . . . . . . . . . . . . .    4
      2.01  Fees; Commitments . . . . . . . . . . . . . . . . . . . . . .    4
      2.02  Voluntary Reduction of Commitments  . . . . . . . . . . . . .    5
      2.03  Mandatory Adjustments of Commitments, etc.  . . . . . . . . .    5

SECTION 3.  Payments  . . . . . . . . . . . . . . . . . . . . . . . . . .    5
      3.01  Mandatory Prepayments . . . . . . . . . . . . . . . . . . . .    5
      3.02  Method and Place of Payment . . . . . . . . . . . . . . . . .    5
      3.03  Net Payments  . . . . . . . . . . . . . . . . . . . . . . . .    5

SECTION 4.  Conditions Precedent  . . . . . . . . . . . . . . . . . . . .    7
      4.01  Execution of Agreement  . . . . . . . . . . . . . . . . . . .    7
      4.02  No Default; Representations and Warranties  . . . . . . . . .    7
      4.03  Officer's Certificate . . . . . . . . . . . . . . . . . . . .    7
      4.04  Opinions of Counsel . . . . . . . . . . . . . . . . . . . . .    8
      4.05  Corporate Proceedings . . . . . . . . . . . . . . . . . . . .    8
      4.06  Adverse Change, etc.  . . . . . . . . . . . . . . . . . . . .    8
      4.07  Litigation  . . . . . . . . . . . . . . . . . . . . . . . . .    8
      4.08  Approvals . . . . . . . . . . . . . . . . . . . . . . . . . .    9
      4.09  Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . .    9

SECTION 5.  Representations, Warranties and Agreements  . . . . . . . . .    9
      5.01  Corporate Status  . . . . . . . . . . . . . . . . . . . . . .    9
      5.02  Corporate Power and Authority . . . . . . . . . . . . . . . .   10
      5.03  No Violation  . . . . . . . . . . . . . . . . . . . . . . . .   10
      5.04  Litigation  . . . . . . . . . . . . . . . . . . . . . . . . .   10
      5.05  Use of Credit; Margin Regulations . . . . . . . . . . . . . .   10
      5.06  Governmental Approvals  . . . . . . . . . . . . . . . . . . .   11
      5.07  Investment Company Act  . . . . . . . . . . . . . . . . . . .   11
      5.08  Public Utility Holding Company Act  . . . . . . . . . . . . .   11
      5.09  True and Complete Disclosure  . . . . . . . . . . . . . . . .   11
      5.10  Financial Condition; Financial Statements; Projections  . . .   12
      5.11  Tax Returns and Payments  . . . . . . . . . . . . . . . . . .   12
      5.12  Compliance with ERISA . . . . . . . . . . . . . . . . . . . .   13
      5.13  Subsidiaries  . . . . . . . . . . . . . . . . . . . . . . . .   13
      5.14  Patents, etc. . . . . . . . . . . . . . . . . . . . . . . . .   13
      5.15  Pollution and Other Regulations . . . . . . . . . . . . . . .   14
      5.16  Properties  . . . . . . . . . . . . . . . . . . . . . . . . .   14
      5.17  Labor Relations . . . . . . . . . . . . . . . . . . . . . . .   15
      5.18  Existing Indebtedness . . . . . . . . . . . . . . . . . . . .   15

SECTION 6.  Affirmative Covenants . . . . . . . . . . . . . . . . . . . .   15
      6.01  Information Covenants . . . . . . . . . . . . . . . . . . . .   16
      6.02  Books, Records and Inspections  . . . . . . . . . . . . . . .   17
      6.03  Insurance . . . . . . . . . . . . . . . . . . . . . . . . . .   17
      6.04  Payment of Taxes  . . . . . . . . . . . . . . . . . . . . . .   17
      6.05  Consolidated Corporate Franchises . . . . . . . . . . . . . .   18
      6.06  Compliance with Statutes, etc.  . . . . . . . . . . . . . . .   18
      6.07  Good Repair . . . . . . . . . . . . . . . . . . . . . . . . .   18
      6.08  End of Fiscal Years; Fiscal Quarters  . . . . . . . . . . . .   18
      6.09  Use of Credit . . . . . . . . . . . . . . . . . . . . . . . .   18
      6.10  ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18

SECTION 7.  Negative Covenants  . . . . . . . . . . . . . . . . . . . . .   19
      7.01  Changes in Business . . . . . . . . . . . . . . . . . . . . .   19
      7.02  Consolidation, Merger or Sale of Assets, etc. . . . . . . . .   20
      7.03  Liens on Assets . . . . . . . . . . . . . . . . . . . . . . .   20
      7.04  Dividends; Restrictions on Subsidiaries, etc. . . . . . . . .   20
      7.05  Transactions with Affiliates  . . . . . . . . . . . . . . . .   22
      7.06  Vessel Management; Registry . . . . . . . . . . . . . . . . .   22
      7.07  Coverage Ratio  . . . . . . . . . . . . . . . . . . . . . . .   23
      7.08  Working Capital . . . . . . . . . . . . . . . . . . . . . . .   23
      7.09  Leverage Ratio  . . . . . . . . . . . . . . . . . . . . . . .   23

SECTION 8.  Events of Default . . . . . . . . . . . . . . . . . . . . . .   23
      8.01  Payments  . . . . . . . . . . . . . . . . . . . . . . . . . .   23
      8.02  Representations, etc. . . . . . . . . . . . . . . . . . . . .   23
      8.03  Covenants . . . . . . . . . . . . . . . . . . . . . . . . . .   23
      8.04  Default Under Other Agreements  . . . . . . . . . . . . . . .   23
      8.05  Bankruptcy, etc.  . . . . . . . . . . . . . . . . . . . . . .   24
      8.06  Guaranty  . . . . . . . . . . . . . . . . . . . . . . . . . .   24
      8.07  Judgments . . . . . . . . . . . . . . . . . . . . . . . . . .   24
      8.08  Employee Benefit Plans  . . . . . . . . . . . . . . . . . . .   25
      8.09  Change of Control . . . . . . . . . . . . . . . . . . . . . .   25

SECTION 9.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .   25

SECTION 10.  Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . .   37
      10.01  Payment of Expenses, etc.  . . . . . . . . . . . . . . . . .   37
      10.02  Right of Setoff  . . . . . . . . . . . . . . . . . . . . . .   39
      10.03  Notices  . . . . . . . . . . . . . . . . . . . . . . . . . .   39
      10.04  Benefit of Agreement . . . . . . . . . . . . . . . . . . . .   39
      10.05  No Waiver; Remedies Cumulative . . . . . . . . . . . . . . .   40
      10.06  Calculations; Computations . . . . . . . . . . . . . . . . .   41
      10.07  GOVERNING LAW; SUBMISSION TO JURISDICTION; VENUE; WAIVER OF
              JURY TRIAL  . . . . . . . . . . . . . . . . . . . . . . . .   41
      10.08  Counterparts . . . . . . . . . . . . . . . . . . . . . . . .   42
      10.09  Effectiveness  . . . . . . . . . . . . . . . . . . . . . . .   42
      10.10  Headings Descriptive . . . . . . . . . . . . . . . . . . . .   42
      10.11  Amendment or Waiver  . . . . . . . . . . . . . . . . . . . .   42
      10.12  Survival . . . . . . . . . . . . . . . . . . . . . . . . . .   43
      10.13  Domicile of Letters of Credit  . . . . . . . . . . . . . . .   43
      10.14  Confidentiality  . . . . . . . . . . . . . . . . . . . . . .   43
      10.15  Registry . . . . . . . . . . . . . . . . . . . . . . . . . .   43

SECTION 11.  Holdings Guaranty  . . . . . . . . . . . . . . . . . . . . .   43
      11.01  The Guaranty . . . . . . . . . . . . . . . . . . . . . . . .   44
      11.02  Bankruptcy . . . . . . . . . . . . . . . . . . . . . . . . .   44
      11.03  Nature of Liability  . . . . . . . . . . . . . . . . . . . .   44
      11.04  Independent Obligation . . . . . . . . . . . . . . . . . . .   44
      11.05  Waiver of Notice, etc. . . . . . . . . . . . . . . . . . . .   45
      11.06  Authorization  . . . . . . . . . . . . . . . . . . . . . . .   45
      11.07  Reliance . . . . . . . . . . . . . . . . . . . . . . . . . .   46
      11.08  Subordination  . . . . . . . . . . . . . . . . . . . . . . .   46
      11.09  Waiver . . . . . . . . . . . . . . . . . . . . . . . . . . .   46


ANNEX I       --  Existing Letters of Credit
ANNEX II      --  Subsidiaries
ANNEX III     --  Rigs and Vessels
ANNEX IV      --  Existing Indebtedness

EXHIBIT A     --  Form of Letter of Credit Request
EXHIBIT B     --  Form of Opinion of Wayne Hillin, Esq.
EXHIBIT C     --  Form of Officers' Certificate
EXHIBIT D     --  Form of Compliance Certificate 

==============================================================================
 
            LETTER OF CREDIT AGREEMENT,  dated as of December 30,  1996, among
READING & BATES  CORPORATION ("Holdings"), a  Delaware corporation, READING  &
BATES DRILLING  CO. (the "Obligor"),  an Oklahoma corporation  and CHRISTIANIA
BANK OG  KREDITKASSE, NEW YORK BRANCH (the  "Bank").  Unless otherwise defined
herein, all  capitalized terms used herein  and defined in Section  9 are used
herein as so defined.


                             W I T N E S S E T H :


            WHEREAS, the  Obligor desires to  execute this  Agreement for  the
purpose  of (i) refinancing outstanding  letters of credit  under that certain
credit agreement, dated as of November 13, 1996,  among Holdings, the Obligor,
various financial institutions,  Banque Indosuez and Credit  Lyonnais New York
Branch,  as documentation  agents and  the Bank,  as administrative  agent (as
amended,  modified or  supplemented from  time to  time, the  "Existing Credit
Agreement") and (ii) supporting the issuance  of new letters of credit for its
account;

            WHEREAS, subject to and  upon the terms and conditions  herein set
forth,  including,  without  limitation,  the  guaranty  by  Holdings  of  all
obligations of the Obligor under this Agreement, the Bank agrees to issue from
time to time at the request and for the account of the Obligor the  Letters of
Credit described herein; and

            WHEREAS,  Holdings  will  obtain  benefits from  the  issuance  of
Letters  of Credit  to  the Obligor  under  this Agreement  and,  accordingly,
desires to execute this Agreement in order to satisfy the conditions described
in the preceding paragraph and to  induce the Bank to issue Letters of  Credit
for the account of the Obligor;


            NOW, THEREFORE, IT IS AGREED:


            SECTION 1.  Letters of Credit.

            1.01  Letters of  Credit.  (a)  Subject to and upon  the terms and
conditions herein set forth, the Obligor may request that the Bank at any time
and from time to time on or after the Effective Date and prior to the Business
Day immediately  preceding the Maturity  Date issue,  for the  account of  the
Obligor and in support of L/C Supportable Obligations, and subject to and upon
the terms and conditions herein set forth, the  Bank agrees to issue from time
to time, irrevocable standby  letters of credit denominated  in US Dollars  or
any  other currency  acceptable  to the  Bank (subject  to  the provisions  of
Section 1.01(b)) and in such  form as may be  approved by the Bank (each  such
standby letter of credit, a "Letter of Credit" and collectively,  the "Letters
of Credit").  Annex I contains  a description of all letters of  credit issued
under the Existing Credit Agreement prior to the Effective Date and which will
remain  outstanding on  the  Effective  Date.   Each  such  letter of  credit,
including  any extension thereof (each  an "Existing Letter  of Credit") shall
constitute a "Letter of Credit"  for all purposes of this Agreement  and shall
be deemed issued for purposes of Section 2.01 on the Effective Date.

            (b)  Whenever the Bank  issues a  Letter of Credit  in a  currency
other than US  Dollars, the  Letter of  Credit Outstandings  relating to  such
Letter  of Credit  at such time  shall be  calculated on  the basis of  the US
Dollar Equivalent  of the  Stated Amount  of such  Letter of  Credit.   Any US
Dollar Equivalent established according to the preceding sentence shall remain
in  effect until  such date  as the  calculation of  the US  Dollar Equivalent
determined as above, if made on such date, would  yield a US Dollar Equivalent
which  varies by  greater than  10.0% from  the US  Dollar Equivalent  then in
effect, at which  time the Letter of Credit Outstandings  shall be adjusted to
reflect the current US Dollar  Equivalent of the Stated Amount of  such Letter
of Credit.  Subsequent adjustments shall then be made on any date on which the
current calculation  of the US  Dollar Equivalent  would yield a  result which
varies by greater than 10.0% from the US Dollar Equivalent then in effect.

            (c)  Notwithstanding the foregoing, (i)  no Letter of Credit shall
be issued,  the Stated Amount  of which,  when added to  the Letter  of Credit
Outstandings (exclusive of Unpaid  Drawings which are repaid  on the date  of,
and prior  to the issuance of, the respective Letter  of Credit) at such time,
would  exceed $20,000,000 and  (ii) no Letter  of Credit shall  have an expiry
date later than the Business Day immediately preceding the Maturity Date.

            1.02  Letter of Credit Requests; Request for Issuance of Letter of
Credit.  (a)  Whenever  it  desires that  a Letter  of  Credit be  issued, the
Obligor shall give the Bank written notice (including by way of telecopier) in
the  form of  Exhibit A  prior to  1:00 P.M.  (New York  time) at  least three
Business Days (or such shorter period as may be acceptable to the Bank)  prior
to the  proposed date  of issuance  (which shall  be a  Business Day) (each  a
"Letter of Credit Request"),  which Letter of Credit Request shall include any
documents that the Bank customarily requires in connection therewith.

            (b)  The Bank shall, on the  date of each issuance of a  Letter of
Credit by it, give the Obligor written or telephonic notice of the issuance of
such Letter of Credit.

            1.03  Agreement  to Repay  Letter  of  Credit  Payments.  (a)  The
Obligor hereby agrees to reimburse the  Bank, by making payment at the Payment
Office, for any payment or disbursement  made by the Bank under any Letter  of
Credit  (each such  amount so paid  or disbursed until  reimbursed, an "Unpaid
Drawing") immediately after, and in any event on the date on which the Obligor
is notified  by the Bank of such payment  or disbursement with interest on the
amount so paid or disbursed by the Bank, to the extent not reimbursed prior to
1:00 P.M.  (New York time) on  the date of such payment  or disbursement, from
and  including the date  paid or disbursed  to but not including  the date the
Bank is reimbursed therefor  at a rate per annum which shall  be the Base Rate
as  in effect on the date of such  notice of payment or disbursements (plus an
additional 2% per annum if not reimbursed by the third Business  Day after the
date of  such notice of  payment or  disbursement), such interest  also to  be
payable on demand.

            (b)  The Obligor's obligation under this Section 1.03 to reimburse
the Bank with  respect to Unpaid Drawings  (including, in each case,  interest
thereon) shall be absolute  and unconditional under any and  all circumstances
and irrespective of  any setoff, counterclaim or defense  to payment which the
Obligor may  have or have had against the Bank, including, without limitation,
any defense based upon the failure of any drawing  under a Letter of Credit to
conform to the terms  of the Letter of Credit  (other than the failure  of the
Bank to  determine  that any  documents required  to be  delivered under  such
Letter of Credit  have been delivered  and that they  substantially comply  on
their  face  with  the   requirements  of  such  Letter  of   Credit)  or  any
non-application or misapplication by  the beneficiary of the proceeds  of such
drawing;  provided,  however,  that the  Obligor  shall  not  be obligated  to
reimburse the Bank for any wrongful payment made by the Bank under a Letter of
Credit as  a result of  acts or omissions  constituting willful  misconduct or
gross negligence on the part of the Bank.

            1.04  Increased  Costs.  If  at any  time  after the  date  of the
Agreement,  the adoption  or  effectiveness of  any  applicable law,  rule  or
regulation,  or any change  therein, or  any change  in the  interpretation or
administration  thereof  by  any   governmental  authority,  central  bank  or
comparable agency  charged with the interpretation  or administration thereof,
or compliance by the Bank with any request or directive (whether or not having
the force of law but with which such Bank customarily complies even though the
failure to comply  therewith would  not be  unlawful) by  any such  authority,
central bank  or comparable agency  shall either  (i) impose,  modify or  make
applicable  any  reserve, deposit,  capital  adequacy  or similar  requirement
against Letters of Credit issued by the Bank, or (ii) shall impose on the Bank
any other conditions affecting this Agreement or any Letter of Credit; and the
result of any of the foregoing is to increase  the cost to the Bank of issuing
or  maintaining any  Letter of  Credit, or  to reduce  the amount  of any  sum
received or receivable by the Bank hereunder (other than any increased cost or
reduction in the amount  received or receivable resulting from  the imposition
of or a  change in the rate or basis of  taxes or similar charges), then, upon
demand  to  the Obligor  by  the  Bank,  the  Obligor  shall  (to  the  extent
applicable)  pay  to  the Bank  such  additional  amount  or  amounts as  will
compensate  the Bank  for  such increased  cost or  reduction.   A certificate
submitted  to  the  Obligor  by  the Bank  setting  forth  the  basis  for the
determination of such additional amount or amounts necessary to compensate the
Bank  as  aforesaid shall  be conclusive  and  binding on  the  Obligor absent
manifest error, although the failure to deliver any such certificate shall not
release or diminish any of the Obligor's obligations to pay additional amounts
pursuant to this Section 1.04 upon the subsequent receipt thereof.

            1.05  Indemnities.   The  Obligor hereby  agrees to  reimburse and
indemnify  the  Bank for  and against  any  and all  liabilities, obligations,
losses, damages, penalties, claims, actions, judgments, suits, costs, expenses
or disbursements  of  whatsoever kind  or  nature  which may  be  imposed  on,
asserted against  or incurred by the Bank  in performing its respective duties
in any way relating to  or arising out of  its issuance of Letters of  Credit;
provided  that  the Obligor  shall  not  be liable  for  any  portion of  such
liabilities,  obligations,  losses,  damages,  penalties,  actions, judgments,
suits,  costs, expenses  or  disbursements  resulting  from the  Bank's  gross
negligence or willful misconduct.

            SECTION 2.  Fees; Commitments.

            2.01  Fees;  Commitments.  (a)  The  Obligor agrees to  pay to the
Bank a fee  in respect of each Letter  of Credit (the "Letter of  Credit Fee")
computed at a rate per annum equal to 1.25% on the daily Stated Amount of such
Letter  of Credit.   Accrued Letter  of Credit  Fees shall be  due and payable
quarterly in arrears on the first day of each January, April, July and October
of each year and on the earlier of  the Maturity Date or the date on which the
Commitment is terminated and no Letters of Credit remain outstanding.

            (b)  The  Obligor agrees to  pay to the  Bank a commitment  fee in
respect  of the Bank's Commitment hereunder (the "Commitment Fee") computed at
the  rate of  .375% per  annum on  the daily  Unutilized Commitment.   Accrued
Commitment Fees shall be due and payable quarterly in arrears on the first day
of  each January, April, July  and October of each year  and on the earlier of
the  Maturity Date or  the date on  which the Commitment is  terminated and no
Letters of Credit remain outstanding.

            (c)  The Obligor agrees to  pay directly to the Bank  upon request
the amount of  any charges or expenses incurred by the Bank in connection with
any confirmation  of Letters of Credit by local banks requested by the Obligor
or any beneficiary of any Letter of Credit.

            (d)  The Obligor shall pay  to the Bank on the Effective Date such
fees as heretofore  agreed in writing by the Obligor and the Bank, when and as
due.

            (e)  All computations of  Fees shall  be made  in accordance  with
Section 10.06(b).

            2.02  Voluntary  Reduction of  Commitments.  Upon at  least thirty
Days' prior written notice (or telephonic notice confirmed in  writing) to the
Bank at its Notice Office,  the Obligor shall have the right,  without premium
or penalty, to terminate or partially reduce the Commitment, provided that (x)
no such reduction  shall reduce the Commitment to an amount  that is less than
the Letter  of Credit Outstandings and  (y) any partial reduction  pursuant to
this Section 2.02 shall be in the amount of at least $1,000,000.

            2.03  Mandatory Adjustments of  Commitments, etc.  The  Commitment
shall  terminate on the  earlier of (i)  the Maturity Date,  (ii) December 31,
1996, unless the Effective Date has occurred  on or before such date and (iii)
unless the  Bank otherwise consents, the  date on which any  Change of Control
occurs.


            SECTION 3.  Payments.

            3.01  Mandatory  Prepayments.  If on any date the aggregate amount
of Letter of Credit  Outstandings exceeds the  Commitment then in effect,  the
Obligor shall pay to the Bank an amount in cash and/or Cash  Equivalents equal
to  such  excess  (up  to  the  aggregate  amount  of  the  Letter  of  Credit
Outstandings at  such time) and the  Bank shall hold such  payment as security
for  the obligations of  the Obligor hereunder  pursuant to  a cash collateral
agreement to be entered into in form and substance reasonably  satisfactory to
the  Bank  (which  shall  permit  certain  investments   in  Cash  Equivalents
satisfactory  to the  Bank, until  the  proceeds are  applied  to the  secured
obligations).

            3.02  Method  and   Place  of   Payment.    Except   as  otherwise
specifically  provided herein, all payments under this Agreement shall be made
to the Bank not later than 1:00 P.M.  (New York time) on the date when due and
shall be made in immediately available funds and in lawful money of the United
States of  America at  the Payment  Office, it  being understood  that written
notice  by the Obligor  to the Bank  to make a  payment from the  funds in the
Obligor's account at  the Payment Office  shall constitute the making  of such
payment to the extent of such funds held in such account.  Any  payments under
this Agreement which  are made later than  1:00 P.M. (New York  time) shall be
deemed to  have been made on the  next succeeding Business Day.   Whenever any
payment to be made hereunder shall be stated to be due on a day which is not a
Business Day,  the due date thereof  shall be extended to  the next succeeding
Business  Day and, with  respect to payments  of principal, interest  shall be
payable during such  extension at  the applicable rate  in effect  immediately
prior to such extension.

            3.03  Net  Payments.  (a)  All   payments  made  by   the  Obligor
hereunder will be made without setoff, counterclaim or other defense.   Except
as provided in Section  3.03(b), all such payments will be made free and clear
of, and  without deduction  or withholding for,  any present or  future taxes,
levies, imposts, duties, fees, assessments or other charges of whatever nature
now or hereafter imposed  by any jurisdiction or by any  political subdivision
or taxing  authority thereof or  therein with  respect to  such payments  (but
excluding,  except  as provided  in the  second  succeeding sentence,  any tax
imposed  on or measured by the net income  or net profits of the Bank pursuant
to the  laws of  the jurisdiction  in  which it  is organized  or managed  and
controlled or the  jurisdiction in  which the principal  office or  applicable
lending  office of the Bank is located  or any subdivision thereof or therein)
and all interest, penalties  or similar liabilities with respect  thereto (all
such non-excluded taxes, levies,  imposts, duties, fees, assessments or  other
charges  being referred  to collectively  as "Taxes").   If  any Taxes  are so
levied or imposed,  the Obligor agrees to  pay the full amount  of such Taxes,
and such additional amounts, if any, as may be necessary so that every payment
of all amounts due under this Agreement, after withholding or deduction for or
on account of any Taxes, will not be less than the amount provided for herein.
If any amounts are payable by the Obligor in respect of Taxes pursuant  to the
preceding sentence, the Obligor agrees to reimburse the Bank, upon the written
request of the Bank, for taxes imposed on or measured by the net income or net
profits of  the Bank pursuant  to the  laws of the  jurisdiction in  which the
principal office  or applicable lending office of the Bank is located or under
the  laws  of  any  political subdivision  or  taxing  authority  of any  such
jurisdiction in which the principal office or applicable lending office of the
Bank is located and for any  withholding of taxes as the Bank  shall determine
are payable by,  or withheld from, the Bank in respect of such amounts so paid
to or on behalf of the Bank  pursuant to the preceding sentence and in respect
of any amounts  paid to or  on behalf of the  Bank pursuant to  this sentence.
The Obligor will furnish to the Bank within 45 days after the date the payment
of  any Taxes  is  due pursuant  to  applicable law  certified  copies of  tax
receipts  evidencing  such payment  by  the Obligor.   The  Obligor  agrees to
indemnify and hold harmless the Bank, and reimburse the Bank  upon its written
request,  for the  amount of any  Taxes so levied  or imposed and  paid by the
Bank.

            (b)  The Bank agrees to deliver to  the Obligor on or prior to the
date  of this Agreement,  two accurate and complete  original signed copies of
Internal Revenue Service Form 4224 or 1001 (or successor forms)  certifying to
the  Bank's entitlement to a complete exemption from United States withholding
tax with respect  to payments to be  made under this Agreement.   In addition,
the Bank agrees that from time to  time after the date of this Agreement, when
a lapse in time or change in  circumstances renders the previous certification
obsolete or inaccurate in any material respect, it will deliver to the Obligor
two  new  accurate and  complete original  signed  copies of  Internal Revenue
Service Form 4224 or 1001 and such other forms as may be required in  order to
confirm or establish the entitlement of the Bank to a continued exemption from
or reduction in  United States withholding tax with respect  to payments under
this Agreement, or it shall immediately notify the Obligor of its inability to
deliver  any  such  Form or  Certificate.    Notwithstanding  anything to  the
contrary contained in Section 3.03(a), but subject to Section 10.04(b) and the
immediately succeeding  sentence, (x) the Obligor  shall be  entitled, to  the
extent it is required to do so by law, to deduct or withhold income or similar
taxes imposed by  the United States  (or any  political subdivision or  taxing
authority thereof or  therein) from  interest, fees or  other amounts  payable
hereunder for the  account of the Bank for U.S. Federal income tax purposes to
the extent that the Bank has not provided to the Obligor U.S. Internal Revenue
Service  Forms  that establish  a complete  exemption  from such  deduction or
withholding and (y) the  Obligor shall  not be obligated  pursuant to  Section
3.03(a) hereof  to gross-up payments  to be  made to  the Bank  in respect  of
income or similar  taxes imposed by the United States if  (I) the Bank has not
provided to  the Obligor  the Internal  Revenue Service Forms  required to  be
provided to the  Obligor pursuant  to this Section  3.03(b).   Notwithstanding
anything to the  contrary contained in the preceding sentence  or elsewhere in
this Section  3.03 and except  as set forth  in Section 10.04(b),  the Obligor
agrees to pay additional amounts and  to indemnify the Bank in the manner  set
forth in Section 3.03(a)  (without regard to the identity  of the jurisdiction
requiring the deduction  or withholding) in respect of any amounts deducted or
withheld by  it as described in the immediately preceding sentence as a result
of any changes after the date of this Agreement in any applicable law, treaty,
governmental rule,  regulation, guideline or  order, or in  the interpretation
thereof, relating to the deducting or withholding of income or similar  Taxes,
provided  the Bank  shall  provide to  the  Obligor any  reasonably  available
applicable IRS  tax form  (reasonably similar  in its  simplicity and lack  of
detail  to IRS  Form  1001)  necessary or  appropriate  for  the exemption  or
reduction in the rate of such U.S. federal withholding tax.

            SECTION 4.  Conditions Precedent.  The  obligation of the Bank  to
issue Letters of Credit hereunder, is subject, at the time of each such Credit
Event (except as otherwise hereinafter indicated), to the satisfaction of each
of the following conditions:

            4.01  Execution  of  Agreement.  The  Effective  Date  shall  have
occurred as provided in Section 10.09.

            4.02  No Default; Representations and Warranties.  At  the time of
each Credit  Event and also after giving effect thereto, (i) there shall exist
no Default or  Event of Default  and (ii) all  representations and  warranties
contained herein or in the other Credit Documents in effect at such time shall
be true and  correct in all material  respects with the same  effect as though
such representations and  warranties had been  made on and  as of the date  of
such  Credit Event  (except  to  the  extent  that  such  representations  and
warranties expressly  relate to an earlier  date, in which case  they shall be
true and correct in all material respects as of such earlier date).

            4.03  Officer's  Certificate.  On  the  Effective  Date,  the Bank
shall  have received a certificate dated such  date signed by the President or
any Vice  President of  the Obligor  stating that there  has been  no Material
Adverse Change  in the financial condition  of the Obligor or  of Holdings and
its Subsidiaries taken as a whole since the date of the last audited financial
statements provided by Holdings or the Obligor to the Bank and that all of the
applicable conditions  set forth in Sections 4.02 and 4.08(a) exist as of such
date.

            4.04  Opinions of Counsel.  On the  Effective Date, the Bank shall
have received  opinions, addressed to the  Bank and dated  the Effective Date,
from (i)  Wayne Hillin,  Esq., General  Counsel to  the Credit Parties,  which
opinion shall cover the matters contained in Exhibit B.

            4.05  Corporate Proceedings.  (a)  On the Effective Date, the Bank
shall have received from  each Credit Party a certificate, dated the Effective
Date,  signed  by the  President or  any  Vice-President or  other appropriate
representative of such Credit Party in the form  of Exhibit C with appropriate
insertions   and  deletions,  together  with  copies  of  the  certificate  of
formation, the by-laws, or other organizational documents of such Credit Party
and the resolutions,  or such  other administrative approval,  of such  Credit
Party referred to in such certificate and all of the foregoing (including each
such certificate of formation, certificate of incorporation and by-laws) shall
be reasonably satisfactory to the Bank.

            (b)  On the  Effective Date,  all corporate and  legal proceedings
and all instruments and agreements in connection with the transactions contem-
plated by  this Agreement and the  other Credit Documents shall  be reasonably
satisfactory in  form and  substance  to the  Bank, and  the  Bank shall  have
received all information and copies of all certificates, documents and papers,
including good standing certificates  and any other records of  corporate pro-
ceedings  and  governmental  approvals,  if  any,  which  the  Bank  may  have
reasonably requested in connection therewith, such documents and papers, where
appropriate, to be certified by proper corporate or governmental authorities.

            4.06  Adverse  Change,   etc.  From  December  31,   1995  to  the
Effective  Date, nothing  shall have  occurred (and  the  Bank shall  not have
become  aware of any facts or conditions  not previously known) which the Bank
shall determine (a)  has, or is reasonably likely to  have, a material adverse
effect on  the rights or remedies of the Bank,  or on the ability of Holdings,
the Obligor  or any Subsidiary to perform  their respective obligations to the
Bank, or (b) has, or is reasonably likely to have, a Material Adverse Effect.

            4.07  Litigation.  On  the  Effective  Date,  there  shall  be  no
actions, suits or proceedings  pending or threatened (a) with respect  to this
Agreement or any other Credit Document or the transactions contemplated hereby
or thereby or  (b) which the Bank shall determine is  reasonably likely to (i)
have a  Material Adverse Effect or (ii) have  a material adverse effect on the
rights or remedies of the Bank hereunder or under any other Credit Document or
on  the  ability of  Holdings  or  the  Obligor  to perform  their  respective
obligations to the Bank hereunder or under any other Credit Document.

            4.08  Approvals.  On  the Effective  Date, all  material necessary
governmental and  third party approvals  in connection  with the  transactions
contemplated  by  the Credit  Documents and  otherwise  referred to  herein or
therein shall have  been obtained  and remain  in effect,  and all  applicable
waiting  periods shall  have  expired without  any action  being taken  by any
competent authority which restrains or prevents such  transactions or imposes,
in the reasonable judgment of the Bank, materially adverse conditions upon the
consummation of such transactions.

            4.09  Fees.  On the Effective Date, the Obligor shall have paid to
the Bank all Fees  and expenses agreed upon by  such parties to be paid  on or
prior to such date.

            The  acceptance  of  the  benefits  of  each  Credit  Event  shall
constitute a  representation and warranty  by Holding and  the Obligor to  the
Bank  that all  of the  conditions  specified above  which  are applicable  in
accordance with their express terms at the time of such acceptance exist as of
that time.   All of the  certificates, legal opinions and  other documents and
papers referred  to in this  Section 4, unless  otherwise specified,  shall be
delivered to the Bank  at its Notice Office and shall  be satisfactory in form
and substance to the Bank.

            SECTION 5.  Representations, Warranties and  Agreements.  In order
to induce the Bank to enter into this Agreement and to issue Letters of Credit
provided  for herein,  each of Holdings  and the  Obligor makes  the following
representations and warranties to, and agreements with, the Bank, all of which
shall survive the execution and delivery of this Agreement (with the making of
each Credit Event thereafter  being deemed to constitute a  representation and
warranty that the matters specified in this Section 5 are true and correct  in
all material respects  on and as of the date of  each such Credit Event unless
such representation and warranty expressly indicates that it is being made  as
of any  specific date, in which case such representations and warranties shall
be true and correct in all material respects as of such date):

            5.01  Corporate Status.  Each Credit Party (i) is a duly organized
and validly existing corporation in good standing under the laws of the juris-
diction of its  organization and has the corporate power  and authority to own
its property and assets  and to transact the business in  which it is engaged,
except  in such  case where the  failure to  be so duly  organized and validly
existing in good  standing and to have such corporate  power and authority (x)
is not reasonably  likely to  have a Material  Adverse Effect and  (y) is  not
reasonably likely to have a material adverse effect on the  rights or remedies
of  the Bank  or on  the ability  of Holdings  or the  Obligor to  perform its
obligations to  the Bank  hereunder and  under the  other Credit Documents  to
which it is a party, and (ii) has duly qualified and is authorized to do busi-
ness and is in  good standing in all jurisdictions where it  is required to be
so qualified and  where the failure to be  so qualified would have  a Material
Adverse Effect.

            5.02  Corporate  Power and Authority.  Each  Credit Party  has the
corporate power and authority to execute, deliver and carry out  the terms and
provisions of the  Credit Documents to which it  is a party and has  taken all
necessary  corporate   action  to   authorize  the  execution,   delivery  and
performance of the Credit Documents to which it  is a party. Each Credit Party
has duly executed and  delivered each Credit Document to  which it is a  party
and  each  such  Credit Document  constitutes  the  legal,  valid and  binding
obligation  of such Credit Party enforceable against such Person in accordance
with its  terms, except to the  extent that the enforceability  thereof may be
limited by  applicable bankruptcy, insolvency,  reorganization, moratorium  or
similar laws generally affecting creditors' rights and by equitable principles
(regardless of whether enforcement is sought in equity or at law).

            5.03  No   Violation.  Neither   the   execution,   delivery   and
performance by any Credit Party of the Credit Documents to which it is a party
nor compliance with  the terms and provisions thereof, nor the consummation of
the  transactions  contemplated therein  (i)  will  contravene any  applicable
provision  of any law, statute,  rule, regulation, order,  writ, injunction or
decree of  any court or  governmental instrumentality of the  United States or
any  State thereof, (ii) will result in any breach of any of the terms, coven-
ants, conditions or provisions of, or constitute a default under, or result in
the creation or imposition of (or the obligation to create or impose) any Lien
upon any of the  property or assets of Holdings,  the Obligor or any  of their
respective  Subsidiaries pursuant  to the  terms of,  any  material indenture,
mortgage, deed of trust, agreement or other instrument to which  Holdings, the
Obligor  or any of their respective Subsidiaries is  a party or by which it or
any of its  property or assets are  bound or to which  it is subject or  (iii)
will violate any  provision of the Certificate of Incorporation  or By-Laws of
Holdings, the Obligor or any of their respective Subsidiaries.

            5.04  Litigation.  There  are  no  actions, suits  or  proceedings
pending  or, to  the best of  Holding's or the  Obligor's knowledge threatened
with respect to Holdings,  the Obligor or any of their respective Subsidiaries
(i)  that are  likely to  have  a Material  Adverse Effect  or  (ii) that  are
reasonably likely  to have a material adverse effect on the rights or remedies
of the Bank or on the  ability of any Credit Party to perform  its obligations
to the Bank hereunder  and under the other Credit  Documents to which it  is a
party.

            5.05  Use  of  Credit;  Margin Regulations.  (a)  All  Letters  of
Credit issued hereunder shall be utilized to provide for the general corporate
purposes of Holdings, the Obligor and their respective Subsidiaries.

            (b)  Neither the issuance of any  Letter of Credit hereunder,  nor
the  use of  any proceeds thereof,  will violate  or be  inconsistent with the
provisions of Regulation G, T, U or X of the Board of Governors of the Federal
Reserve System and  no part of  the proceeds of any  Letter of Credit  will be
used  to purchase or carry any Margin Stock in violation of Regulation U or to
extend credit for the purpose of purchasing or carrying any Margin Stock.

            5.06  Governmental  Approvals.  Except  for the  orders, consents,
approvals,  licenses,  authorizations, validations,  recordings, registrations
and exemptions that have already been duly made or obtained and remain in full
force and  effect, no  order,  consent, approval,  license, authorization,  or
validation of, or filing, recording or registration with, or exemption by, any
foreign  or  domestic  governmental  or  public  body  or  authority,  or  any
subdivision thereof, is  required to  authorize or is  required in  connection
with (i) the  execution, delivery and  performance of any  Credit Document  or
(ii)  the legality, validity, binding  effect or enforceability  of any Credit
Document.

            5.07  Investment Company Act.  None  of Holdings,  the Obligor  or
any of  their respective Subsidiaries is an  "investment company" or a company
"controlled"  by an "investment company," within the meaning of the Investment
Company Act of 1940, as amended.

            5.08  Public Utility  Holding Company Act.  None of  Holdings, the
Obligor or any  of their respective Subsidiaries is a  "holding company," or a
"subsidiary company" of  a "holding company," or an  "affiliate" of a "holding
company" or of a "subsidiary company" of a "holding company," within the mean-
ing of the Public Utility Holding Company Act of 1935, as amended.

            5.09  True  and  Complete  Disclosure.  All   factual  information
(taken as  a whole) heretofore or contemporaneously  furnished by or on behalf
of Holdings, the Obligor or any of their respective Subsidiaries in writing to
the  Bank for  purposes  of  or  in  connection with  this  Agreement  or  any
transaction  contemplated herein  is, and  all other such  factual information
(taken as a whole) hereafter furnished  by or on behalf of any such  Person in
writing to the Bank will be, true and accurate in all material respects on the
date as of which such information is dated or certified  and not incomplete by
omitting to  state any material fact necessary to make such information (taken
as a whole)  not misleading at such  time in light of  the circumstances under
which such information was provided.   The Projections and pro forma financial
information contained in such materials are based on  good faith estimates and
assumptions believed by  such Persons to  be reasonable at  the time made,  it
being recognized by the Bank that such Projections as to future events are not
to be  viewed as facts  and that actual results  during the period  or periods
covered by any such Projections may differ from the projected  results.  There
is no fact known to Holdings or the Obligor which is reasonably likely to have
a Material  Adverse Effect, which  has not  been disclosed herein  or in  such
other documents, certificates and statements furnished to the Bank for use  in
connection with the transactions contemplated hereby.

            5.10  Financial Condition; Financial Statements; Projections.  (a)
On and as  of the Effective Date, on a pro  forma basis after giving effect to
all Indebtedness  incurred, and to be  incurred, and Liens created,  and to be
created, by Holdings and its Subsidiaries in connection therewith, (x) the sum
of the assets, at a fair valuation, of Holdings  and its Subsidiaries taken as
a  whole will exceed its  debts, (y) Holdings and its  Subsidiaries taken as a
whole will not have incurred or intended  to, or believe that they will, incur
debts  beyond their  ability to pay  such debts  as such debts  mature and (z)
Holdings and  its Subsidiaries  taken as a  whole will  not have  unreasonably
small capital with which to conduct its business.  

            (b)  (i)  The  consolidated  balance  sheet of  Holdings  and  its
Subsidiaries at December 31,  1995 and the related consolidated  statements of
operations  and cash  flows of Holdings  and its  Subsidiaries for  the fiscal
year, as the  case may be, ended as of said  date, which have been examined by
Arthur Andersen  LLP, independent certified public  accountants, who delivered
an unqualified opinion in respect therewith, and (ii) the consolidated balance
sheet of  Holdings and its  Subsidiaries as of  September 30, 1996,  copies of
which have heretofore been furnished to the Bank, present fairly the financial
position of such entities at the dates of  said statements and the results for
the period  covered thereby in  accordance with GAAP  (or, in the  case of the
balance  sheet, presents a good  faith estimate of  the consolidated financial
condition of Holdings and its Subsidiaries at the date thereof), except to the
extent provided  in the notes to said financial statements and, in the case of
the  September 30, 1996 statements,  subject to normal  and recurring year-end
audit adjustment.   All such  financial statements (other  than the  aforesaid
balance sheet)  have  been  prepared  in accordance  with  generally  accepted
accounting  principles and practices consistently applied except to the extent
provided  in the notes  to said  financial statements.   Nothing  has occurred
since  December 31,  1995 that  has  had or  is  reasonably likely  to have  a
Material Adverse Effect.

            (c)  Except as reflected in the financial statements and the notes
thereto described in Section 5.10(b),  there were as of the Effective  Date no
liabilities or  obligations with respect  to Holdings, the  Obligor or  any of
their  respective  Subsidiaries  of   a  nature  (whether  absolute,  accrued,
contingent or  otherwise and whether or not due) which, either individually or
in aggregate,  would be material to  Holdings and its Subsidiaries  taken as a
whole, except  as incurred  subsequent to  December 31,  1995 in  the ordinary
course of business consistent with past practices.  

            5.11  Tax Returns and Payments.  Each of Holdings, the Obligor and
each of their respective Subsidiaries has filed all federal income tax returns
and all other material tax returns, domestic and foreign, required to be filed
by it and has paid all material taxes and assessments payable by it which have
become due, other than those not yet delinquent and except for those contested
in  good faith.   Holdings, the  Obligor and  each of  their respective Subsi-
diaries has paid, or has  provided adequate reserves with respect  thereto, in
accordance  with GAAP,  for the  payment of,  all federal,  state  and foreign
income taxes applicable for all prior fiscal years and for  the current fiscal
year to the date hereof.

            5.12  Compliance  with  ERISA.   (a) Each  Plan is  in substantial
compliance  with ERISA  and the  Code; no  Reportable Event has  occurred with
respect to a Plan; no Plan  is insolvent or in reorganization; no Plan  has an
accumulated or waived  funding deficiency or has  applied for an extension  of
any amortization  period within the  meaning of Section  412 of the  Code; all
contributions required to be made with respect to a Plan and a Foreign Pension
Plan  have been  timely  made;  neither  Holdings  nor  the  Obligor  nor  any
Subsidiary of the Obligor  nor any ERISA Affiliate  has incurred any  material
liability to or on account  of a Plan pursuant to Section 409, 502(i), 502(l),
4062, 4063, 4064,  4069, 4201, 4204  or 4212 of  ERISA or Section  401(a)(29),
4971, 4975  or 4980 of the  Code or expects to incur  any liability (including
any indirect, contingent, or  secondary liability) under any of  the foregoing
Sections with  respect to  any Plan;  no proceedings  have been instituted  to
terminate or  appoint a trustee  to administer  any Plan; no  condition exists
which presents a  material risk to Holdings, the Obligor  or any Subsidiary of
the Obligor or any ERISA Affiliate  of incurring a liability to or on  account
of a Plan  pursuant to  the foregoing  provisions of  ERISA and  the Code;  or
except as would  reasonably be expected to have a  Material Adverse Effect, no
lien imposed  under the Code  or ERISA  on the  assets of the  Obligor or  any
Subsidiary  of  the Obligor  or any  ERISA Affiliate  exists or  is reasonably
likely to  arise on account of  any Plan; and Holdings, the  Obligor and their
respective  Subsidiaries do not maintain or contribute to any employee welfare
benefit plan (as defined in Section 3(1) of ERISA) which  provides benefits to
retired employees or other former employees (other than as required by Section
601 of ERISA) or any employee pension benefit plan (as defined in Section 3(2)
of ERISA) the obligations with respect to which are not properly recognized or
disclosed in such entity's consolidated financial statements and notes related
thereto.

            (b)   Each Foreign Pension Plan has been maintained in substantial
compliance with  its terms and with the requirements of any and all applicable
laws, statutes, rules, regulations  and orders and has been  maintained, where
required,  in good standing with  applicable regulatory authorities.   None of
Holdings, the Obligor or any of their respective Subsidiaries has incurred any
obligation  in connection  with  the termination  of  or withdrawal  from  any
Foreign Pension Plan.

            5.13  Subsidiaries.  Annex  II lists  each Subsidiary  of Holdings
(and  the direct and indirect ownership interest of Holdings therein), in each
case existing on the Effective Date. 

            5.14  Patents, etc.  Holdings  and each  of  its Subsidiaries  has
obtained  all  material  patents,  trademarks,  service  marks,  trade  names,
copyrights, licenses and other rights, free from burdensome restrictions, that
are  necessary for  the operation  of  their businesses  taken as  a whole  as
presently conducted.

            5.15  Pollution and Other  Regulations.  (a)  Each of Holdings and
its   Subsidiaries  is   in   substantial  compliance   with  all   applicable
Environmental  Laws  governing its  business for  which  failure to  comply is
reasonably likely to  have a Material Adverse Effect, and neither Holdings nor
any  of its  Subsidiaries  is  liable for  any  material  penalties, fines  or
forfeitures for  failure to comply with  any of the foregoing.   All licenses,
permits,  registrations or approvals required for the business of Holdings and
each  of its Subsidiaries,  as conducted as  of the Effective  Date, under any
Environmental Law  have been secured and Holdings and each of its Subsidiaries
is in  substantial compliance therewith, except such licenses, permits, regis-
trations or  approvals the failure  to secure  or to comply  therewith is  not
likely to  have a Material  Adverse Effect.   Neither Holdings nor any  of its
Subsidiaries is in  any respect in  noncompliance with, breach  of or  default
under any  writ, order, judgment, injunction,  or decree to  which Holdings or
such  Subsidiary is a party  or which would affect the  ability of Holdings or
such Subsidiary to  operate any Real Property, offshore drilling  rig or other
facility and no  event has occurred and is continuing  which, with the passage
of time  or the  giving  of notice  or both,  would constitute  noncompliance,
breach of or default thereunder, except in each such case, such noncompliance,
breaches or defaults  as are not likely to, in the  aggregate, have a Material
Adverse Effect.   There are as  of the Effective Date  no Environmental Claims
pending or, to  the best knowledge  of Holdings  and the Obligor,  threatened,
against Holdings or any  of its Subsidiaries wherein an  unfavorable decision,
ruling or  finding  would be  reasonably  likely to  have  a Material  Adverse
Effect.  There are no  facts, circumstances, conditions or occurrences  on any
Real Property, offshore drilling  rig or other facility  owned or operated  by
Holdings or any of its Subsidiaries that is reasonably  likely (i) to form the
basis of an Environmental Claim  against Holdings, any of its Subsidiaries  or
any Real  Property, offshore drilling rig or  other facility owned by Holdings
or any  of its Subsidiaries,  or (ii)  to cause such  Real Property,  offshore
drilling rig  or other  facility  to be  subject to  any  restrictions on  its
ownership,  occupancy, use  or  transferability under  any Environmental  Law,
except in each such  case, such Environmental Claims or restrictions  that in-
dividually or  in the aggregate are  not reasonably likely to  have a Material
Adverse Effect.

            (b)  Hazardous Materials have  not at any time been (i) generated,
used, treated  or stored  on, or  transported to or  from, any  Real Property,
offshore  drilling rig  or other  facility at  any time  owned or  operated by
Holdings or any of its Subsidiaries, or (ii) released on or from any such Real
Property, offshore drilling rig or other  facility, in each case where, to the
best  of  Holdings'  or the  Obligor's  knowledge,  such  occurrence or  event
individually  or in  the aggregate  is reasonably  likely to  have a  Material
Adverse Effect.

            5.16  Properties.  (a)  Holdings  and each of its Subsidiaries has
title  to all  material  properties  owned  by  them  including  all  property
reflected in the consolidated  balance sheet of Holdings and  its Subsidiaries
as referred to in Section 5.10(b), free and clear of all Liens, other than (i)
as referred to  in the consolidated balance  sheet or in the  notes thereto or
(ii) Permitted Liens.

            (b)  Annex III sets forth all the offshore drilling rigs and other
vessels  owned or chartered  by Holdings and  each of its  Subsidiaries on the
Effective  Date, and identifies the registered owner, flag, official or patent
number,  as the  case may  be, the  home port,  class, location  and operating
status on the Effective Date, and,  if chartered-in by Holdings or any of  its
Subsidiaries, the name and address of the owner of such chartered-in vessel. 

            5.17  Labor  Relations.  Neither Holdings nor  its Subsidiaries is
engaged  in any  unfair labor  practice that  is reasonably  likely to  have a
Material  Adverse Effect.   There is  (i) no  unfair labor  practice complaint
pending against  Holdings or any of its Subsidiaries or threatened against any
of  them,  before the  National Labor  Relations  Board, and  no  grievance or
arbitration  proceeding  arising out  of  or under  any  collective bargaining
agreement is so pending against Holdings or any of its Subsidiaries or, to the
best of Holdings' or the Obligor's knowledge, threatened against any  of them,
(ii) no strike, labor  dispute, slowdown or stoppage pending  against Holdings
or  any of  its Subsidiaries  or, to the  best of  Holdings' or  the Obligor's
knowledge, threatened against Holdings or any of its Subsidiaries and (iii) no
union  representation petition  existing  with  respect  to the  employees  of
Holdings or  any of its  Subsidiaries and no  union organizing  activities are
taking place,  except with respect to any matter specified in clause (i), (ii)
or (iii)  above, either  individually  or in  the aggregate,  such  as is  not
reasonably likely to have a Material Adverse Effect.

            5.18  Existing  Indebtedness.   Annex  IV  sets forth  a  true and
complete list of all Indebtedness of  Holdings and each of its Subsidiaries on
the Effective Date and which is to remain outstanding after the Effective Date
(excluding the Letters of  Credit, the "Existing Indebtedness"), in  each case
showing the aggregate principal amount thereof  and the name of the respective
borrower  (or  issuer)  and any  other  entity  which  directly or  indirectly
guaranteed such debt.

            SECTION  6.  Affirmative  Covenants.  Holdings  and   the  Obligor
covenant and agree  that on the Effective  Date and thereafter for  so long as
this Agreement  is in effect  (and until  the Commitments have  terminated, no
Letters  of  Credit are  outstanding and  all  Unpaid Drawings,  together with
interest,  Fees  and all  other Obligations  incurred  hereunder, are  paid in
full):

            6.01  Information  Covenants.  Holdings  and/or  the Obligor  will
furnish to the Bank:

            (a)  Annual Financial  Statements.  Within 90 days after the close
      of  each  fiscal year  of Holdings,  the  consolidated balance  sheet of
      Holdings and its Subsidiaries, as at the end of such fiscal year and the
      related consolidated statements of operations and of cash flows for such
      fiscal year,  including the amount of  Consolidated Capital Expenditures
      made during such  fiscal year,  in each case  setting forth  comparative
      consolidated  figures  for the  preceding fiscal  year, and  examined by
      independent certified public accountants of recognized national standing
      whose opinion shall not be qualified as to the  scope of audit and as to
      the status of Holdings and its Subsidiaries as a going concern, together
      with a certificate of such accounting firm stating that in the course of
      its  regular audit of  the business of  Holdings and the  Obligor, which
      audit  was  conducted in  accordance  with  generally accepted  auditing
      standards, such accounting firm has obtained no knowledge of any Default
      or Event  of Default which has occurred and  is continuing or, if in the
      opinion  of such accounting firm such a  Default or Event of Default has
      occurred and is continuing, a statement as to the nature thereof.

            (b)  Quarterly Financial Statements.  As soon as available and  in
      any  event within 45  days after  the close of  each of  the first three
      quarterly  accounting  periods in  each  fiscal  year, the  consolidated
      balance sheet  of Holdings and its  Subsidiaries, as at the  end of such
      quarterly period  and the related consolidated  statements of operations
      and of cash flows for such quarterly period and for  the elapsed portion
      of the  fiscal year ended  with the last  day of such  quarterly period,
      including the  amount of  Consolidated Capital Expenditures  made during
      such  period, and  in each case  setting forth  comparative consolidated
      figures for  the related period in  the prior fiscal year,  all of which
      shall  be unaudited,  but certified  by the  chief financial  officer or
      controller  of  Holdings, subject  to changes  resulting from  audit and
      normal year-end audit adjustments.

            (c)  Compliance Certificate.  At  the time of the  delivery of the
      financial  statements  provided  for  in Sections  7.01(a)  and  (b),  a
      certificate of Holdings and/or the Obligor signed by its chief financial
      officer, controller or other Authorized Officer in the form of Exhibit D
      to the effect  that no  Default or Event  of Default exists  or, if  any
      Default or Event of Default does exist, specifying the nature and extent
      thereof, which certificate shall set forth  the calculations required to
      establish whether Holdings and its Subsidiaries were in  compliance with
      the provisions of Section 7 as at the end of such fiscal period or year,
      as the case may be.

            (d)  Notice of Default or  Litigation.  Promptly, and in any event
      within (x) three  Business Days  after Holdings or  the Obligor  obtains
      knowledge  thereof,   notice  of  the  occurrence  of  any  event  which
      constitutes a Default or Event of Default which notice shall specify the
      nature thereof, the period of existence thereof and what action Holdings
      or  the  Obligor proposes  to  take  with respect  thereto  and  (y) ten
      Business Days after the Obligor obtains knowledge thereof, notice of the
      commencement  of or  any significant  development in  any  litigation or
      governmental proceeding pending  against Holdings or the  Obligor or any
      of  their respective  Subsidiaries which  is likely  to have  a Material
      Adverse Effect or  is likely to  have a material  adverse effect on  the
      ability  of Holdings or the Obligor to perform its obligations hereunder
      or under any other Credit Document.

            (e)  Other Information.  From time to time, such other information
      or documents  (financial  or  otherwise)  as  the  Bank  may  reasonably
      request.

            6.02  Books, Records  and  Inspections.  Holdings will,  and  will
cause each of its Subsidiaries to, permit, upon reasonable notice to the chief
financial officer, controller or  any other Authorized Officer of  Holdings or
the  Obligor,  officers and  designated representatives  of  the Bank,  to the
extent necessary, to examine the books of  account of Holdings and any of  its
Subsidiaries and discuss the affairs, finances and accounts of Holdings and of
any of its Subsidiaries with, and be advised as to the same by, its  and their
officers  and independent accountants, all at such reasonable times and inter-
vals and to such reasonable extent as the Bank may desire.

            6.03  Insurance.  Holdings  will,  and  will  cause  each  of  its
Subsidiaries  to, at all times maintain in  full force and effect insurance in
such amounts with carriers  of such insurance industry ratings,  covering such
risks  and liabilities and with such deductibles or self-insured retentions as
are  in  accordance  with  normal  industry  practice  for  similarly situated
insureds.

            6.04  Payment of Taxes.  Holdings will pay and discharge, and will
cause each of its  Subsidiaries to pay and  discharge, all taxes,  assessments
and  governmental charges  or levies  imposed upon  it or  upon its  income or
profits,  or upon any properties  belonging to it, prior to  the date on which
penalties attach thereto, and all lawful claims which, if unpaid, might become
a  Lien or charge upon any properties of  Holdings or any of its Subsidiaries,
provided that neither Holdings nor any Subsidiary shall be required to pay any
such tax, assessment,  charge, levy or claim which is  being contested in good
faith and by  proper proceedings if it  has maintained adequate reserves  with
respect thereto in accordance with GAAP.

            6.05  Consolidated  Corporate  Franchises.  Holdings will  do, and
will cause each  of its Subsidiaries  to do, or cause  to be done,  all things
necessary  to preserve  and  keep  in full  force  and  effect its  existence,
material rights and authority, unless  the failure to do so is  not reasonably
likely  to have  a  Material Adverse  Effect,  provided that  any  transaction
permitted by Section 7.02 will not constitute a breach of this Section 6.05.

            6.06  Compliance  with Statutes,  etc.  Holdings  will,  and  will
cause  each of  its  Subsidiaries to,  comply  with all  applicable  statutes,
regulations and orders  of, and  all applicable restrictions  imposed by,  all
governmental  bodies, domestic or  foreign, in respect  of the conduct  of its
business  and the  ownership  of  its  property  other  than  those  the  non-
compliance with  which would not have  a Material Adverse Effect  or would not
have a material adverse effect  on the ability of any Credit Party  to perform
its obligations under any Credit Document to which it is party.

            6.07  Good  Repair.  Except for  offshore drilling  rigs currently
under or scheduled to be repaired or which have  been damaged or have suffered
a casualty  as to which (within  a reasonable period of  time) Holdings and/or
the Obligor have not made a determination  whether to replace or repair, or if
the  determination to  replace  or repair  has  been made,  as  to which  such
replacement  or  repairs  are  being undertaken,  subject  to  availability of
equipment, materials  and/or repair facilities, Holdings will,  and will cause
each of its Subsidiaries to, keep  its properties and equipment used or useful
in  its business,  in whomsoever's  possession they  may be,  in good  repair,
working  order and condition,  normal wear and tear  excepted, and, subject to
Section 7.02, see that from time to time there are made in such properties and
equipment   all  necessary   and   proper  repairs,   renewals,  replacements,
extensions, additions, betterments and improvements  thereto to the extent and
in the manner useful or customary for companies in similar businesses.

            6.08  End of  Fiscal Years;  Fiscal Quarters.  Holdings will,  for
financial reporting purposes,  cause (i) each  of its fiscal  years to end  on
December 31 of each year and (ii) each of its fiscal quarters to end  on March
31, June 30, September 30 and December 31 of each year.

            6.09  Use  of Credit.  All  Letters  of Credit  shall  be used  as
provided in Section 5.05.

            6.10   ERISA.  As soon  as possible and,  in any event,  within 10
days after Holdings, the Obligor  or any of  their respective  Subsidiaries or
any ERISA Affiliate  knows or has reason to  know of the occurrence of  any of
the following, Holdings or the Obligor  will deliver to the Bank a certificate
of  the Chief  Financial  Officer of  Holdings  or the  Obligor  setting forth
details  as to  such occurrence  and the  action, if  any, that  Holdings, the
Obligor, such  Subsidiary or such ERISA  Affiliate is required or  proposes to
take, together with  any notices required or proposed to be  given to or filed
with or  by Holdings, the  Obligor, such Subsidiary, the  ERISA Affiliate, the
PBGC, or a Plan  participant or the  Plan administrator with respect  thereto:
that a Reportable Event  has occurred; that an accumulated  funding deficiency
has  been incurred or an application may be  or has been made to the Secretary
of the Treasury  for a waiver or modification of  the minimum funding standard
(including  any  required  installment  payments)  or  an   extension  of  any
amortization period under Section 412 of the Code or Section 302 of ERISA with
respect  to a  Plan; that  a contribution  required to  be made  to a  Plan or
Foreign Pension Plan has  not been timely made; that a Plan has been or may be
terminated, reorganized, partitioned or  declared insolvent under Title  IV of
ERISA;  that a Plan has  an Unfunded Current  Liability giving rise  to a lien
under ERISA or the  Code; that proceedings may  be or have been  instituted to
terminate or appoint  a trustee to  administer a Plan,  that a proceeding  has
been  instituted pursuant  to Section  515 of  ERISA  to collect  a delinquent
contribution to a Plan;  that Holdings, the Obligor,  any of their  respective
Subsidiaries or any ERISA Affiliate will or may incur any liability (including
any indirect  contingent  or secondary  liability)  to or  on account  of  the
termination of or withdrawal from a Plan under Section 4062, 4063, 4064, 4069,
4201, 4204  or  4212  of  ERISA  or with  respect  to  a  Plan  under  Section
401(a)(29), 4971 or 4975  of the Code  or Section 409 or  502(i) or 502(l)  of
ERISA; or  that Holdings, the Obligor or any Subsidiary may incur any material
unrecognized  liability  pursuant to  any  employee welfare  benefit  plan (as
defined in Section 3(1) of ERISA) that provides benefits  to retired employees
or other former  employees (other than as required by Section 601 of ERISA) or
any employee pension benefit plan (as defined in Section 3(2) of ERISA).  Upon
request, Holdings or  the Obligor will deliver to the Bank  a complete copy of
the annual  report (Form 5500) of each Plan (including to the extent required,
the  related  financial  and  actuarial  statements  and  opinions  and  other
supporting statements, certifications, schedules  and information) required to
be filed with  the Internal Revenue Service.  In  addition to any certificates
or notices delivered to the Bank pursuant to the first sentence hereof, copies
of annual reports, and any material  notices received by Holdings, the Obligor
or any  of  their respective  Subsidiaries  or any  ERISA Affiliate  from  any
governmental agency with respect to any Plan shall be delivered to the Bank no
later than 10 days after the date such report has been filed with the Internal
Revenue Service or such notice has been received by Holdings, the Obligor, the
Subsidiary or the ERISA Affiliate, as applicable.

            SECTION 7.  Negative  Covenants.  Holdings and the  Obligor hereby
covenant and agree that as of the Effective Date and thereafter for so long as
this Agreement  is in  effect  and until  the  Commitment has  terminated,  no
Letters  of Credit are outstanding and all  Unpaid Drawings, together with in-
terest, Fees and all other Obligations incurred hereunder, are paid in full:

            7.01  Changes in Business.  Holdings and the Obligor will not, and
will  not permit any of their respective Subsidiaries to, materially alter the
character of  the business of Holdings  and its Subsidiaries taken  as a whole
from  that conducted at the  Effective Date (including  any material expansion
outside of the  offshore contract drilling and  production business), provided
that  this Section 7.01 shall not  restrict the engaging in business ancillary
to the offshore contract drilling and production business.

            7.02  Consolidation,  Merger  or Sale  of  Assets,  etc.   Neither
Holdings nor the  Obligor will wind up, liquidate or  dissolve its affairs, or
enter  into  any transaction  of merger  or  consolidation, sell  or otherwise
dispose of all or substantially all  of its property or assets or agree  to do
any  of the foregoing at  any future time, except that  the following shall be
permitted:

            (a)  Holdings may  liquidate or  dissolve or consolidate  or merge
      into  another entity, provided (i) Holdings is the successor or survivor
      in respect of such merger, and after giving effect thereto Holdings will
      be in full compliance with the terms of this Agreement and (ii) Standard
      &  Poor's shall have affirmed in writing  that such transaction will not
      impair Holdings'  implied senior debt rating  as such debt rating  is in
      effect  immediately prior  to the  announcement or consummation  of such
      liquidation, dissolution, consolidation or merger;

            (b)   other sales or dispositions of assets provided that (x) each
      such sale or  disposition shall be  in an amount  at least equal  to the
      fair market value  thereof (as determined by  the Board of Directors  of
      the Borrower  in the  case of  sales in excess  of $20,000,000)  and for
      proceeds  consisting solely of  not less than  100% cash in  the case of
      assets constituting Collateral and (y) no such sale or disposition shall
      constitute the sale or  disposition of all or  substantially all of  the
      combined assets of Holdings and its Subsidiaries taken together; and 

            (c)  other sales or  dispositions of  assets in each  case to  the
      extent the Bank  has consented  in writing thereto  and subject to  such
      conditions as may be set forth in such consent.

            7.03  Liens  on Assets.  Holdings  and the  Obligor will  not, and
will not permit any of their respective Subsidiaries to, create, incur, assume
or suffer to exist any Lien other than Permitted Liens.  

            7.04  Dividends; Restrictions on Subsidiaries, etc.  (a)  Holdings
will  not, and will not permit any of  its Subsidiaries to, declare or pay any
dividends  (other  than  dividends (i)  payable  solely  in  capital stock  of
Holdings  or rights  in  respect thereof  or  (ii) constituting  spin-offs  of
divisions or direct or indirect operating subsidiaries of Holdings (other than
Arcade and  the Obligor and their  direct or indirect Subsidiaries)  or return
any capital  to, the stockholders of  Holdings or authorize or  make any other
distribution, payment  or delivery of property or  cash to the stockholders of
Holdings as such, or  redeem, retire, purchase or otherwise  acquire, directly
or indirectly, for  a consideration, any  shares of any  class of the  capital
stock of Holdings now or hereafter outstanding (or any warrants for or options
or stock appreciation  rights in respect of any of such  shares), or set aside
any funds for any of the foregoing purposes, or permit any of its Subsidiaries
to purchase or otherwise acquire for  consideration any shares of any class of
the capital stock of Holdings, now or hereafter outstanding (or any options or
warrants  or stock appreciation rights issued by  Holdings with respect to its
capital stock) (all of the foregoing "Dividends"), except that:

           (i)  Holdings may redeem or repurchase common stock of Holdings (or
      options  to purchase  such  common stock)  from  (1) present  or  former
      officers,  employees and directors of  Holdings, the Obligor,  or any of
      their Subsidiaries (or their estates) upon the death, permanent disabil-
      ity,  retirement  or termination  of employment  of  any such  Person or
      otherwise in accordance with any stock option plan or any employee stock
      ownership plan, or  (2) stockholders of Holdings so  long as the purpose
      of such purchase is to  acquire common stock of Holdings  for reissuance
      to new officers, employees and directors (or their estates) of Holdings,
      the Obligor  or any of  their respective  Subsidiaries to the  extent so
      reissued  within 12 months  of any such  purchase, provided  that in all
      such cases (x)  no Default or Event of  Default is then in  existence or
      would  arise therefrom,  (y) the  aggregate amount of  all cash  paid in
      respect of all  such shares so redeemed  or repurchased in  any calendar
      year does not exceed $15,000,000 plus proceeds of key man life insurance
      used for the  purpose of repurchasing  such common  stock owned by  such
      Person  and,  provided further,  that in  the  event that  Holdings sub-
      sequently  resells to any member of its, or any Subsidiary's management,
      any  shares redeemed  or repurchased  pursuant to  this clause  (i), the
      amount  of repurchases  Holdings may  make from officers,  employees and
      directors pursuant  to this clause (i)  shall be increased by  an amount
      equal to any cash received by Holdings upon the resale of such shares;

          (ii)  Holdings may pay  or make  Dividends on (i)  existing Class  A
      common stock (up to  a maximum of $100 per annum) and  (ii) any issue of
      preferred stock whether now existing or hereafter issued; and

         (iii)  so  long as  no Default or  Event of  Default exists  or would
      result therefrom, Holdings shall  be permitted to pay or  make Dividends
      in an  amount not to exceed  50%, in the aggregate,  of Consolidated Net
      Income on a cumulative basis beginning October 1, 1996.

            (b)  Holdings and the Obligor will not, and will not permit any of
the Subsidiary Guarantors to, create or otherwise cause or suffer to exist any
encumbrance  or  restriction which  prohibits or  otherwise restricts  (A) the
ability of  any Subsidiary Guarantor to  (a) pay dividends or  make other dis-
tributions  or pay  any Indebtedness  owed to  the Obligor  or any  Subsidiary
Guarantor,  or (b)  make loans or  advances to  the Obligor  or any Subsidiary
Guarantor, (c) transfer any of its properties  or assets to the Obligor or any
Subsidiary Guarantor or (B) the ability of the Obligor or any other Subsidiary
Guarantor of the  Obligor to create, incur, assume or suffer to exist any Lien
upon its property or assets to secure the Obligations, other than prohibitions
or restrictions existing under or by reason of:

           (i) this Agreement and the other Credit Documents;

          (ii) applicable law;

         (iii) customary   non-assignment  provisions  entered   into  in  the
      ordinary course of business and consistent with past practices;

          (iv) any restriction  or encumbrance  with respect  to a  Subsidiary
      Guarantor imposed pursuant to  an agreement which has been  entered into
      for the sale  or disposition of all or substantially  all of the capital
      stock or  assets of such Subsidiary  Guarantor, so long as  such sale or
      disposition is permitted under this Agreement; and 

           (v) Permitted Liens and any documents  or instruments governing the
      terms  of  any Indebtedness  or other  obligations  secured by  any such
      Liens, provided that such prohibitions or restrictions apply only to the
      assets subject to such Liens.

            7.05  Transactions with Affiliates.  Holdings and the Obligor will
not, and will not permit  any of their respective Subsidiaries to,  enter into
any transaction or series of transactions after  the Effective Date whether or
not in the ordinary course of business, with any Affiliate other than on terms
and  conditions substantially as favorable  to Holdings or  such Subsidiary as
would be obtainable by Holdings or such Subsidiary at the time in a comparable
arm's-length  transaction with a Person other than an Affiliate, provided that
the  foregoing restrictions  shall not  apply to  (i) employment  arrangements
entered into in the ordinary course of business with officers  of Holdings and
its  Subsidiaries, (ii)  customary  fees  paid  to members  of  the  Board  of
Directors  of Holdings  and of  its Subsidiaries, (iii)  capital contributions
made  by  Holdings to  the Obligor,  (iv)  all transactions  between  or among
Holdings  and  its  Subsidiaries, (v)  all  immaterial  transactions with  the
officers or members of the Board  of Directors of Holdings or its Subsidiaries
and (vi) all immaterial transactions with Affiliates.

            7.06  Vessel Management; Registry.   Holdings and the Obligor will
not, and will not permit  any of their Subsidiaries to, (i) change the overall
management of any  drilling rig from  Holdings or any  of its Subsidiaries  or
(ii) change the national registry of any drilling rig.

            7.07  Coverage Ratio.  Holdings  will not permit the  ratio of (i)
Consolidated EBITDAR to  (ii) the  sum of Consolidated  Interest Expense  plus
Consolidated Rent Expense for any  fiscal quarter of Holdings to be  less than
4.00:1.00.

            7.08  Working  Capital.  Holdings will not  permit Working Capital
on the last  day of  any fiscal  quarter of  Holdings to  be less  than $0  if
Working Capital was less than $0 on the  last day of the immediately preceding
fiscal quarter.

            7.09  Leverage Ratio.  Holdings will not permit the Leverage Ratio
at the  end of  any fiscal  quarter ending prior  to the  Maturity Date  to be
greater than 0.50:1.00.

            SECTION 8.  Events of Default.  Upon the occurrence of  any of the
following specified events (each an "Event of Default"):

            8.01  Payments.  The Obligor shall default, and such default shall
continue  for three  or more Business  Days after  notice by the  Bank, in the
payment when due of any Unpaid Drawing or any Fees or  any other amounts owing
hereunder or under any other Credit Document; or

            8.02  Representations,   etc.  Any  representation,   warranty  or
statement made by any Credit Party herein  or in any other Credit Document  or
in any statement or certificate delivered or required to be delivered pursuant
hereto or thereto shall prove to be untrue in any material respect on the date
as of which made or deemed made; or

            8.03  Covenants.  Holdings or the Obligor shall (a) default in the
due  performance or  observance  by  it of  any  term,  covenant or  agreement
contained in Section 6.08  or Section 7 or (b) default  in the due performance
or  observance by  it of  any term,  covenant or  agreement (other  than those
referred  to in Section 8.01,  8.02 or clause  (a) of this  Section 8.03) con-
tained in  this Agreement  and such  default shall continue  unremedied for  a
period of at least 30 days after notice to the Obligor by the Bank; or

            8.04  Default Under Other Agreements.  (a)  Holdings,  the Obligor
or any of their respective Subsidiaries  shall (i) default in any payment with
respect to any Indebtedness (including, without limitation, the Obligations as
defined in  the Existing Credit Agreement) beyond the period of grace, if any,
applicable thereto  or (ii) default  in the  observance or performance  of any
agreement or condition relating to  any such Indebtedness or contained in  any
instrument or agreement evidencing, securing or relating thereto, or any other
event shall occur  or condition exist,  the effect of  which default or  other
event  or  condition  results in  acceleration  or  the  renegotiation of  the
material  payment terms of  any such Indebtedness  to become due  prior to its
stated maturity;  or (b)  any  such Indebtedness  of Holdings  or  any of  its
Subsidiaries  shall be  declared to  be  due and  payable, or  required to  be
prepaid other than by a regularly scheduled required prepayment, prior to  the
stated  maturity thereof,  provided that it  shall not constitute  an Event of
Default pursuant to this Section 8.04 unless the aggregate principal amount of
such Indebtedness in default exceeds $5,000,000 at any one time; or

            8.05  Bankruptcy,  etc.  Holdings, the  Obligor  or  any of  their
respective  Subsidiaries shall  commence  a voluntary  case concerning  itself
under  Title 11  of the United  States Code  entitled "Bankruptcy,"  as now or
hereafter in effect,  or any successor thereto (the "Bankruptcy  Code"); or an
involuntary case is  commenced against Holdings, the  Obligor or any of  their
respective Subsidiaries and the  petition is not controverted within  10 days,
or is  not dismissed within  60 days,  after commencement  of the  case; or  a
custodian  (as defined  in the  Bankruptcy Code)  is  appointed for,  or takes
charge  of, all or substantially all of  the property of Holdings, the Obligor
or any  of their respective Subsidiaries;  or Holdings, the Obligor  or any of
their  respective  Subsidiaries  commences  any  other  proceeding  under  any
reorganization,  arrangement,  adjustment of  debt,  relief  of debtors,  dis-
solution, insolvency or liquidation or similar law of any jurisdiction whether
now or hereafter in  effect relating to Holdings, the Obligor  or any of their
respective Subsidiaries; or there  is commenced against Holdings,  the Obligor
or any of  their respective  Subsidiaries any  such case  or proceeding  which
remains undismissed for a period  of 60 days; or Holdings, the  Obligor or any
of  their respective Subsidiaries is adjudicated insolvent or bankrupt; or any
order  of relief  or other  order  approving any  such case  or proceeding  is
entered; Holdings, the Obligor or any of their respective Subsidiaries suffers
any appointment of any custodian or the like for it or any substantial part of
its property to continue undischarged or unstayed  for a period of 60 days; or
Holdings, the Obligor or any of their respective Subsidiaries makes  a general
assignment  for the benefit of creditors; or  any corporate action is taken by
Holdings, the Obligor  or any of their respective Subsidiaries for the purpose
of effecting any of the foregoing; or

            8.06  Guaranty.  The Guaranty or any provision thereof shall cease
to be in full force and effect, or the Guarantor or any Person acting by or on
behalf of such  Guarantor shall deny  or disaffirm all or  any portion of  the
Guarantor's  obligation thereunder,  or  the Guarantor  shall  default in  the
observance of  any term, covenant or agreement on  its part to be performed or
observed pursuant thereto  and such  default (other than  any default  arising
from a failure to make any payment thereunder) shall continue unremedied for a
period of at least 30 days after notice to the Obligor by the Bank; or

            8.07  Judgments.  One  or  more  judgments  or  decrees  shall  be
entered against Holdings or the Obligor involving a liability of $1,000,000 or
more in the case of any one such judgment  or decree and $5,000,000 or more in
the aggregate for all such judgments  and decrees for Holdings and the Obligor
(not paid or to the extent not covered by insurance) and any such judgments or
decrees shall not  have been vacated, discharged  or stayed or bonded  pending
appeal within 60 days from the entry thereof; or

            8.08  Employee Benefit Plans. (a)(i) A contribution required to be
made with  respect to  any (x)  employee pension benefit  plan (as  defined in
Section 3(2) of ERISA) maintained or  contributed to by (or to which  there is
an obligation to contribute of) Holdings or a Subsidiary or an ERISA Affiliate
or (y) Foreign Pension  Plan has not been timely made or  (ii) Holdings or any
Subsidiary has incurred or is  likely to incur liabilities pursuant to  one or
more employee welfare benefit plans (as defined in Section 3(1) of ERISA) that
provide benefits to retired employees or other former employees (other than as
required  by  Section 601  of  ERISA) or  employee pension  benefit  plans (as
defined in Section 3(2) of  ERISA); (b) there shall result from any such event
or events the  imposition of a lien, the granting of a security interest, or a
liability  or a material  risk of incurring  a liability; and  (c) which lien,
security  interest or liability, individually, and/or in the aggregate, in the
opinion of the Bank, will have a Material Adverse Effect; or

            8.09  Change of Control.  A Change of Control shall occur; 

then, and  in any such  event, and  at any  time thereafter, if  any Event  of
Default shall then  be continuing, the  Bank shall, by  written notice to  the
Obligor, take  any or all of  the following actions, without  prejudice to the
rights of the Bank to  enforce its claims against any Credit  Party, except as
otherwise  specifically provided for in  this Agreement (provided  that, if an
Event of  Default specified in  Section 8.05 shall  occur with respect  to the
Obligor, the result which would occur upon the giving of written notice by the
Bank as  specified in  clauses (i)  and (ii)  below shall  occur automatically
without the  giving of any  such notice):   (i) declare the  Commitment termi-
nated, whereupon the Commitment shall terminate immediately and any Commitment
Commission  or any other Fees  shall forthwith become  due and payable without
any other  notice of  any kind; (ii)  declare all obligations  owing hereunder
(including, without  limitation, Unpaid  Drawings) to be,  whereupon the  same
shall  become, forthwith due and  payable without presentment, demand, protest
or other  notice of any  kind, all of which  are hereby waived  by each Credit
Party;  (iii)  terminate  any Letter  of  Credit which  may  be  terminated in
accordance with its  terms; (iv) direct  the Obligor to  pay (and the  Obligor
hereby agrees upon receipt of such notice, or upon the occurrence of any Event
of Default  specified in Section 8.05 in respect  of the Obligor, it will pay)
to the Bank at the Payment Office such additional  amounts of cash, to be held
as  security for the Obligor's reimbursement obligations in respect of Letters
of Credit then outstanding equal to the aggregate Stated Amount of all Letters
of Credit  then outstanding; and (v) apply any amounts held as cash collateral
pursuant to Section 3.01 or this Section 8 to repay Obligations.

            SECTION  9.  Definitions.  As  used  herein,  the  following terms
shall  have  the  meanings  herein  specified  unless  the  context  otherwise
requires.   Defined terms  in this  Agreement shall  include  in the  singular
number the plural and in the plural the singular:

            "Affiliate" shall  mean, with  respect to  any  Person, any  other
Person  directly or indirectly controlling  (including but not  limited to all
directors and  officers of  such Person),  controlled by, or  under direct  or
indirect common control with such Person.  A Person shall be deemed to control
a corporation if such Person possesses,  directly or indirectly, the power (i)
to vote 10%  or more of  the securities having  ordinary voting power  for the
election  of directors  of such  corporation or  (ii) to  direct or  cause the
direction  of the management and policies of such corporation, whether through
the ownership of voting securities, by contract or otherwise.

            "Agreement" shall  mean this  Letter of  Credit Agreement,  as the
same may be from time to time modified, amended and/or supplemented.

            "Approved  Bank" shall have the meaning provided in the definition
of "Cash Equivalents."

            "Approved  Company"  shall  have   the  meaning  provided  in  the
definition of "Cash Equivalents."

            "Arcade" shall mean Arcade Drilling AS, a Norwegian Corporation.

            "Authorized Officer"  shall mean any  officer of  Holdings or  the
Obligor designated as such in writing to the Bank by Holdings or the Obligor.

            "Bank" shall have the  meaning provided in the first  paragraph of
this Agreement and shall  include any successor to the Bank appointed pursuant
to Section 10.04.

            "Bankruptcy Code" shall have the meaning provided in Section 8.05.

            "Base Rate" shall mean the rate  which CBK announces from time  to
time as its prime lending rate, the Base Rate to change when and as such prime
lending rate changes.

            "Business  Day"  shall mean  (i) for  all  purposes other  than as
covered  by clause (ii) below, any day  excluding Saturday, Sunday and any day
which shall be in  the Cities of New York  and/or London a legal holiday  or a
day on which banking institutions are  authorized by law or other governmental
actions to  close and (ii) with  respect to all notices  and determinations in
connection  with, and  payments on,  Letters  of Credit,  any day  which is  a
Business Day described  in clause (i) and which  is also a day for  trading by
and between banks in U.S. dollar deposits in the interbank Eurodollar market.

            "Capital Expenditures" shall mean, with respect to any Person, all
expenditures by such  Person which  should be capitalized  in accordance  with
GAAP,  including all such expenditures with respect to fixed or capital assets
(including, without limitation, expenditures for maintenance and repairs which
should be capitalized in accordance with generally accepted accounting princi-
ples) and the amount of Capitalized Lease Obligations incurred by such Person.

            "Capital Lease" as  applied to any Person shall  mean any lease of
any property (whether real, personal or mixed) by that Person as lessee which,
in conformity with GAAP,  is accounted for as  a capital lease on the  balance
sheet of that Person.

            "Capitalized Lease  Obligations" shall mean all  obligations under
Capital Leases  of Holdings or any of  its Subsidiaries in each  case taken at
the amount thereof accounted for as liabilities in accordance with GAAP.

            "Cash Equivalents"  shall mean  (i) securities issued  or directly
and fully guaranteed or insured  by the United States of America or any agency
or  instrumentality thereof (provided  that the full  faith and credit  of the
United States of America is  pledged in support thereof) having  maturities of
not more  than six  months  from the  date of  acquisition,  (ii) U.S.  dollar
denominated time deposits, certificates of deposit and bankers' acceptances of
(x) the Bank, (y) any  domestic commercial bank of recognized standing  having
capital and surplus in excess of  $500,000,000 or (z) any bank (or  the parent
company of such bank) whose short-term commercial paper rating from Standard &
Poor's Corporation ("S&P") is at  least A-1 or the equivalent thereof  or from
Moody's Investors Service, Inc. ("Moody's") is  at least P-1 or the equivalent
thereof (any such  bank, an "Approved Bank"), in each  case with maturities of
not  more than  six  months from  the  date of  acquisition, (iii)  repurchase
obligations with a term of not more than seven days  for underlying securities
of the types described in  clause (i) above entered into with any bank meeting
the qualifications  specified  in clause  (ii)  above, (iv)  commercial  paper
issued by any Bank  or Approved Bank or by  the parent company of the  Bank or
any Approved  Bank  and commercial  paper  issued by,  or guaranteed  by,  any
industrial or financial company  with a short-term commercial paper  rating of
at least A-1 or  the equivalent thereof by S&P  or at least P-1 or  the equiv-
alent thereof by Moody's (any such company, an "Approved Company"), or guaran-
teed  by any industrial company  with a long term unsecured  debt rating of at
least A or A2, or the equivalent of each  thereof, from S&P or Moody's, as the
case may  be, and in  each case maturing within  six months after  the date of
acquisition and (v)  investments in  money market funds  substantially all  of
whose assets are comprised of securities of the type described  in clauses (i)
through (iv) above.

            "CBK" shall mean Christiania Bank og Kreditkasse, New York Branch.

            "CERCLA"  shall  mean  the Comprehensive  Environmental  Response,
Compensation, and Liability Act of 1980, as amended, 42 U.S.C.  9601 et seq.

            "Change  of Control"  shall mean  (a) Holdings  shall at  any time
cease to  own  100%  of the  capital  stock of  the  Obligor or,  directly  or
indirectly, any Subsidiary Guarantor,  (b) any "person" (as such  term is used
in Sections 13(d) and 14(d) of the Exchange Act), is or becomes the beneficial
owner (as defined in Rules  13d-3 and 13d-5 under the Exchange  Act), directly
or indirectly, of more than 50% of  the total voting power of the Voting Stock
of Holdings or (c) during any  period of two consecutive years individuals who
at the beginning of such period constituted the Board of Directors of Holdings
(together with any new directors whose election by such Board  of Directors or
whose nomination for election  by the stockholders of Holdings was approved by
a  vote of a majority  of the directors  of Holdings then still  in office who
were either directors  at the beginning  of such period  or whose election  or
nomination for election  was previously so  approved) cease for any  reason to
constitute a majority of the Board of Directors of Holdings then in office.

            "Claims" shall  have the  meaning provided  in  the definition  of
"Environmental Claims."

            "Code"  shall mean the Internal  Revenue Code of  1986, as amended
from  time to  time and  the regulations  promulgated  and the  rulings issued
thereunder.   Section references to the Code are  to the Code, as in effect at
the  Effective  Date and  any subsequent  provisions  of the  Code, amendatory
thereof, supplemental thereto or substituted therefor.

            "Commitment" shall  mean the Bank's Commitment to issue Letters of
Credit to the  extent the Letter of  Credit Outstandings (exclusive  of Unpaid
Drawings which  are repaid on the  date of and  prior to the issuance  of, the
respective Letter of Credit) do not exceed $20,000,000.

            "Consolidated Capital  Expenditures" shall  mean, for any  period,
the  aggregate  of  all  expenditures (whether  paid  in  cash  or accrued  as
liabilities  and including in all  events all amounts  expended or capitalized
under  Capital Leases)  by Holdings  and its  Subsidiaries during  that period
that, in  conformity with  GAAP, are  or are  required to  be included  in the
property,  plant or equipment reflected  in the consolidated  balance sheet of
Holdings and its Subsidiaries, provided that Consolidated Capital Expenditures
shall in  any event  include the  purchase price paid  in connection  with the
acquisition  of any  Person  (including through  the purchase  of  all of  the
capital stock or other ownership interests of such Person or through merger or
consolidation) to  the extent allocable  to  "drilling and  other property and
equipment" provided further, that Consolidated Capital Expenditures shall only
include the amount thereof actually paid in cash during such period.

            "Consolidated Current  Assets" shall  mean, the current  assets of
Holdings and its Subsidiaries determined on a consolidated basis in accordance
with GAAP, including cash and Cash Equivalents.

            "Consolidated  Current   Liabilities"  shall  mean,   the  current
liabilities  of Holdings  and its  Subsidiaries determined  on a  consolidated
basis in accordance with GAAP, but excluding (i) the current portion under the
Holdings Convertible Debentures and (ii) the current liability associated with
the required repayment of "Loans" in connection with the "Scheduled Commitment
Reduction"  occurring on the "Maturity  Date" (all as  defined in the Existing
Credit Agreement).

            "Consolidated EBIT" shall mean, for any period, (A) the sum of the
amounts for  such period of  (i) Consolidated Net Income,  (ii) provisions for
taxes based on income, (iii)  Consolidated Interest Expense, (iv) amortization
or write-off of deferred financing costs to the extent deducted in determining
Consolidated Net Income and (v) losses  on sales of assets (excluding sales in
the ordinary course  of business) and other extraordinary losses  less (B) the
amount for such  period of gains  on sales of  assets (excluding sales  in the
ordinary  course of business) and other extraordinary gains, all as determined
on a consolidated basis in accordance with GAAP.

            "Consolidated  EBITDAR" shall mean, for any period, the sum of the
amounts for such period  of (i) Consolidated EBIT, (ii)  depreciation expense,
(iii)  amortization  expense  and  (iv)  Consolidated  Rent  Expense,  all  as
determined on a consolidated basis in accordance with GAAP.

            "Consolidated Funded Indebtedness" shall mean, all Indebtedness of
Holdings and its Subsidiaries calculated on a consolidated basis in accordance
with GAAP; provided that with respect to calculations made pursuant to Section
8.10  only,  Funded  Debt  shall  exclude  up  to  $200,000,000  of  unsecured
subordinated debt issued by Holdings in one or more public offerings following
the Effective Date, which shall  (i) mature after the Maturity Date,  (ii) not
have  any  principal payments  prior  to  the Maturity  Date,  and  (iii)   be
explicitly subordinated to this Facility.

            "Consolidated Interest Expense" shall  mean, for any period, total
interest expense (including  that attributable to Capital  Leases) of Holdings
and its  Subsidiaries in  accordance with  GAAP on  a consolidated basis  with
respect to  all outstanding  Indebtedness  of Holdings  and its  Subsidiaries,
including, without limitation, all  commissions, discounts and other fees  and
charges  owed  with  respect to  letters  of  credit  and bankers'  acceptance
financing.

            "Consolidated Net  Income"  shall mean  for  any period,  the  net
income (or loss) of Holdings and its Subsidiaries on a  consolidated basis for
such period taken as a single accounting period determined  in conformity with
GAAP.

            "Consolidated  Net Worth"  shall mean,  at any  time, shareholders
equity  (excluding treasury  stock)  of Holdings  and  its Subsidiaries  on  a
consolidated basis determined in accordance with GAAP.

            "Consolidated Rent  Expense" shall mean  for any period,  the rent
expense of  Holdings and  its Subsidiaries  on a  consolidated basis for  such
period taken as a single accounting period determined in accordance with GAAP.

            "Contingent  Obligations"   shall  mean  as  to   any  Person  any
obligation  of  such   Person  guaranteeing  or  intending  to  guarantee  any
Indebtedness  ("primary  obligations")  of  any  other  Person  (the  "primary
obligor")  in any manner,  whether directly or  indirectly, including, without
limitation, any obligation of  such Person, whether or not contingent,  (a) to
purchase  any such primary obligation  or any property  constituting direct or
indirect  security  therefor,  (b) to  advance  or supply  funds  (i)  for the
purchase or payment of any such primary obligation or (ii) to maintain working
capital or equity capital of the  primary obligor or otherwise to maintain the
net  worth or  solvency  of the  primary obligor,  (c)  to purchase  property,
securities or services primarily for the purpose of assuring the  owner of any
such primary obligation of the ability  of the primary obligor to make payment
of  such primary obligation  or (d) otherwise  to assure or  hold harmless the
owner  of such primary obligation  against loss in  respect thereof, provided,
however, that the term Contingent Obligation shall not include endorsements of
instruments for deposit or collection in the ordinary course of business.  The
amount of  any Contingent Obligation shall be deemed  to be an amount equal to
the stated  or determinable  amount of the  primary obligation  in respect  of
which such  Contingent Obligation is made  or, if not  stated or determinable,
the maximum reasonably anticipated liability in respect thereof (assuming such
Person is required to perform thereunder) as determined by such Person in good
faith.

            "Credit  Documents" shall  mean this  Agreement and  any documents
executed in connection herewith.

            "Credit Event" shall mean and include the  issuance of a Letter of
Credit.

            "Credit Party" shall mean Holdings and the Obligor. 

            "Default" shall mean any event, act or condition which with notice
or lapse of time, or both, would constitute an Event of Default.

            "Dividends" shall have the meaning provided in Section 7.04.

            "Effective Date" shall have the meaning provided in Section 10.09.

            "Eligible Transferee"  shall mean  and include a  commercial bank,
financial institution or other "accredited investor" (as defined by Regulation
D of the Securities Act of 1933).

            "Employee Benefit Plan" shall have the meaning provided in Section
8.08.

            "Environmental   Claims"  means   any   and  all   administrative,
regulatory or judicial actions, suits, demands, demand letters, claims, liens,
notices  of noncompliance  or violation,  investigations (other  than internal
reports prepared by Holdings or any of its Subsidiaries solely in the ordinary
course of such Person's business and not in response to any third party action
or  request  of  any  kind)  or  proceedings  relating  in  any   way  to  any
Environmental Law or any permit issued,  or any approval given, under any such
Environmental  Law  (hereafter,  "Claims"),  including,   without  limitation,
(a) any  and  all  Claims  by  governmental  or  regulatory  authorities   for
enforcement, cleanup,  removal, response, remedial or other actions or damages
pursuant to  any applicable Environmental Law,  and (b) any and  all Claims by
any third party seeking damages, contribution, indemnification, cost recovery,
compensation or  injunctive relief resulting from  Hazardous Materials arising
from alleged injury or threat of injury to health, safety or the environment.

            "Environmental Law"  means any applicable Federal,  state, foreign
or  local statute, law, rule,  regulation, ordinance, code,  guide, policy and
rule of common law now or hereafter in effect and in each case as amended, and
any judicial or administrative  interpretation thereof, including any judicial
or  administrative  order,  consent  decree   or  judgment,  relating  to  the
environment, health, safety or Hazardous Materials, including, without limita-
tion, CERCLA; RCRA; the  Federal Water Pollution  Control Act, as amended,  33
U.S.C.  1251 et seq.; the  Toxic Substances Control Act, 15 U.S.C.   7401 et
seq.; the  Clean Air Act,  42 U.S.C.  7401 et  seq.; the Safe  Drinking Water
Act, 42 U.S.C.  3808 et seq.; the Oil Pollution Act of 1990, 33 U.S.C.  2701
et seq. and any applicable  state and local or foreign counterparts  or equiv-
alents.

            "ERISA" shall mean the Employee  Retirement Income Security Act of
1974,  as amended  from  time to  time, and  the  regulations promulgated  and
rulings issued  thereunder.  Section references  to ERISA are to  ERISA, as in
effect at  the Effective Date  and any subsequent provisions  of ERISA, amend-
atory thereof, supplemental thereto or substituted therefor.

            "ERISA  Affiliate" shall mean  each person (as  defined in Section
3(9) of ERISA) which together with Holdings or any Subsidiary  would be deemed
to be a "single employer" (i) within  the meaning of Sections 414(b), (c), (m)
and (o) of the Code or (ii) as a result of Holdings or any Subsidiary being or
having been a general partner of such person.

            "Event of Default" shall have the meaning provided in Section 8.

            "Existing Credit Agreement" shall have the meaning provided in the
recitals to this Agreement. 

            "Existing Indebtedness" shall have the meaning provided in Section
5.18.

            "Existing  Letter of  Credit" shall  have the meaning  provided in
Section 1.01(a).

            "Facility" shall  mean the  letter of credit  facility established
under this Agreement.

            "Fees"  shall mean all amounts payable pursuant to, or referred to
in, Section 2.01.

            "Foreign Pension  Plan" means  any plan, fund  (including, without
limitation, any superannuation  fund) or other similar  program established or
maintained outside the United States of America by Holdings or any one or more
of its Subsidiaries primarily for the benefit of employees of Holdings or such
Subsidiaries residing outside the  United States of America, which  plan, fund
or  other  similar  program provides,  or  results  in,  retirement income,  a
deferral of income in contemplation of  retirement or payments to be made upon
termination of employment, and which plan is not subject to ERISA or the Code.

            "GAAP" shall mean generally  accepted accounting principles in the
United States of America as in effect on the  date of this Agreement; it being
understood and agreed that determinations in accordance with GAAP for purposes
of Section  7, including defined  terms as used  therein, are subject  (to the
extent provided therein) to Section 10.06(a).

            "Guaranteed Obligations" shall mean all obligations of the Obligor
to  the Bank for the  full and prompt payment when  due (whether at the stated
maturity, by  acceleration or otherwise) of all  reimbursement obligations and
Unpaid Drawings with respect to Letters of Credit, together with all the other
obligations and liabilities (including, without limitation, indemnities,  fees
and interest thereon) of the Obligor to the Bank now existing or hereafter in-
curred under, arising out of or in connection with this Agreement or any other
Credit Document  and the due  performance and compliance  with all  the terms,
conditions and agreements contained in the Credit Documents by the Obligor.

            "Guarantor" shall mean Holdings.

            "Guaranty" shall mean the guaranty of Holdings pursuant to Section
11 hereof. 

            "Hazardous  Materials"   means  (a)  any  petroleum  or  petroleum
products, radioactive materials, asbestos in any  form that is or could become
friable, urea  formaldehyde foam  insulation, transformers or  other equipment
that contained, electric fluid containing levels of polychlorinated biphenyls,
and radon  gas;  (b) any  chemicals,  materials or  substances  defined as  or
included  in  the definition  of  "hazardous  substances," "hazardous  waste,"
"hazardous  materials,"  "extremely  hazardous waste,"  "restricted  hazardous
waste,"   "toxic   substances,"   "toxic   pollutants,"   "contaminants,"   or
"pollutants," or words of  similar import, under any  applicable Environmental
Law; and (c)  any other chemical, material or substance,  exposure to which is
prohibited, limited or regulated by any governmental authority.

            "Holdings" shall have the meaning provided in the  first paragraph
of this Agreement.

            "Holdings Convertible  Debentures" shall mean Holdings'  8% Senior
Subordinated Convertible Debentures due December 1998.

            "Indebtedness" of  any Person  shall mean without  duplication (i)
all indebtedness of such Person for borrowed money, (ii) the deferred purchase
price of assets  or services which in accordance  with GAAP would be  shown on
the liability side of  the balance sheet of such Person, (iii) the face amount
of all letters of credit  issued for the account  of such Person and,  without
duplication,  all drafts drawn thereunder,  (iv) all Indebtedness  of a second
Person secured by any Lien on any property owned by such first Person, whether
or  not  such  indebtedness  has  been  assumed,  (v)  all  Capitalized  Lease
Obligations  of such  Person, (vi)  all obligations  of such  Person to  pay a
specified purchase  price for goods  or services  whether or not  delivered or
accepted, i.e., take-or-pay and similar obligations, (vii) all net obligations
of  such Person  under  Interest Rate  Agreements  and (viii)  all  Contingent
Obligations of such Person (other than Contingent Obligations arising from the
guaranty  by such  Person of the  obligations of Holdings,  the Obligor and/or
their respective Subsidiaries  to the extent  such guaranteed obligations  are
permitted under this Agreement); provided  that Indebtedness shall not include
(x) trade  payables and accrued expenses, in each case arising in the ordinary
course of business and (y) Indebtedness of a direct or  indirect Subsidiary of
Holdings  (the "Relevant  Subsidiary"),  of which  neither  Holdings, nor  the
Obligor, nor any of their Subsidiaries  other than the Relevant Subsidiary  is
liable or obligated in any manner.

            "Interest  Rate  Agreement"  shall  mean any  interest  rate  swap
agreement, any interest rate cap agreement, any interest rate collar agreement
or other similar agreement or arrangement designed to protect any Credit Party
against interest rate risk.

            "L/C Supportable  Obligations" shall mean such  obligations of the
Obligor,  the Guarantors  or  their Subsidiaries  (other  than obligations  in
respect  of Indebtedness)  as are  not inconsistent with  the policies  of the
Bank.

            "Leasehold"  of any  Person  means all  of  the right,  title  and
interest  of such  Person as lessee  or licensee  in, to  and under  leases or
licenses of land, improvements and/or fixtures.

            "Letter of  Credit" shall  have the  meaning  provided in  Section
1.01(a).

            "Letter  of Credit Fee" shall have the meaning provided in Section
2.01(a).

            "Letter of Credit Outstandings"  shall mean, at any time,  the sum
of,  without duplication, (i) the  aggregate Stated Amount  of all outstanding
Letters  of Credit  and (ii) the  aggregate amount  of all  Unpaid Drawings in
respect of all Letters of Credit.

            "Letter of  Credit Request"  shall  have the  meaning provided  in
Section 1.02(a).

            "Leverage Ratio" shall  mean, at  any date  of determination,  the
ratio of Consolidated Funded Indebtedness on such date to Total Capitalization
on such date.

            "Lien"  shall  mean  any   mortgage,  pledge,  security  interest,
security  title,  encumbrance,  lien or  charge  of  any  kind (including  any
agreement to  give any of the  foregoing, any conditional sale  or other title
retention agreement  or any lease  in the  nature thereof) other  than arising
from  an event constituting  a Total Loss  (as defined in  the Existing Credit
Agreement).

            "Margin Stock" shall have the meaning provided in Regulation U.

            "Material Adverse Effect" shall mean  a material adverse effect on
the business,  property, assets, liabilities, operations, condition (financial
or otherwise) or  prospects of the  Obligor or Holdings  and its  Subsidiaries
taken as a whole.

            "Maturity Date" shall mean June 30, 1998.

            "Notice Office"  shall mean the office of the Bank at 11 West 42nd
Street, 7th  Floor, New York, New York 10036 or  such other office as the Bank
may designate to the Obligor from time to time.

            "Obligations"  shall   mean  all  amounts,   direct  or  indirect,
contingent  or  absolute,  of  every type  or  description,  and  at  any time
existing,  owing to the  Bank pursuant to  the terms of  this Agreement or any
other Credit Document.

            "Obligor" shall have  the meaning provided in the  first paragraph
of this Agreement.

            "Payment Office" shall mean the office of the Bank at 11 West 42nd
Street,  7th Floor, New York, New York 10036  or such other office as the Bank
may designate to the Obligor from time to time.

            "PBGC"  shall  mean  the  Pension  Benefit   Guaranty  Corporation
established pursuant to Section 4002 of ERISA, or any successor thereto.

            "Permitted Liens"  shall mean Liens permitted  pursuant to Section
8.03 of the Existing Credit Agreement. 

            "Person" shall mean  any individual,  partnership, joint  venture,
firm, corporation, association, trust or other enterprise or any government or
political subdivision or any agency, department or instrumentality thereof.

            "Plan"  shall mean  any multiemployer  or single-employer  plan as
defined in Section 4001 of ERISA, which is maintained or contributed to by (or
to which  there is an obligation to contribute of) Holdings or a Subsidiary of
Holdings or an ERISA Affiliate.


            "Projections" shall mean the  financial projections, together with
adjustments thereto, previously delivered to the Bank and  prepared on a basis
consistent with the financial statements referred to in Section 5.10(a).

            "RCRA" shall  mean the Resource Conservation and  Recovery Act, as
amended, 42 U.S.C.  6901 et seq.

            "Real  Property" of any Person shall  mean all of the right, title
and  interest  of  such Person  in  and to  land,  improvements  and fixtures,
including Leaseholds.

            "Register" shall have the meaning provided in Section 10.15.

            "Regulation D" shall mean  Regulation D of the Board  of Governors
of the Federal Reserve System as from time to time in effect and any successor
to all or a portion thereof establishing reserve requirements.

            "Regulation U" shall mean  Regulation U of the Board  of Governors
of the Federal Reserve System as from time to time in effect and any successor
to all or a portion thereof establishing margin requirements.

            "Relevant  Subsidiary"  shall have  the  meaning  provided in  the
definition of Indebtedness.

            "Reportable  Event"  shall  mean  an event  described  in  Section
4043(c)  of ERISA with respect to  a Plan other than those  events as to which
the 30-day notice period is waived under subsection .13, .14, .16, .18, .19 or
 .20 of PBGC Regulation Section 2615.

            "SEC" shall  mean the  Securities and  Exchange Commission  or any
successor thereto.

            "Stated  Amount" of each Letter  of Credit shall  mean the maximum
available to be  drawn thereunder  (regardless of whether  any conditions  for
drawing could then be met).

            "Subsidiary"  of  any  Person  shall  mean  and  include  (i)  any
corporation more than 50% of whose stock of any class or classes having by the
terms thereof  ordinary voting power to  elect a majority of  the directors of
such corporation  (irrespective of  whether or  not at the  time stock  of any
class or classes  of such corporation shall have or might have voting power by
reason of the  happening of  any contingency)  is at  the time  owned by  such
Person directly or  indirectly through Subsidiaries and  (ii) any partnership,
association, joint  venture or other entity  in which such Person  directly or
indirectly through Subsidiaries,  has more than a  50% equity interest at  the
time.     Unless  otherwise  expressly  provided,  all  references  herein  to
"Subsidiary" shall mean a Subsidiary of Holdings.

            "Subsidiary  Guarantor" shall  have  the meaning  assigned in  the
Existing Credit Agreement.

            "Taxes" shall have the meaning provided in Section 3.03(a).

            "Total  Capitalization"  shall  mean,  at  any  time,  the  sum of
Consolidated Funded Indebtedness and Consolidated Net Worth at such time.

            "Unfunded Current Liability" of any Plan means the amount, if any,
by which the actuarial  present value of  the accumulated plan benefits  under
the Plan as of  the close of its most recent plan year exceeds the fair market
value  of the  assets allocable  thereto, each  determined in  accordance with
Statement of Financial Accounting  Standards No. 87, based upon  the actuarial
assumptions used  by the Plan's actuary in the most recent annual valuation of
the Plan.

            "Unpaid  Drawing"  shall  have  the meaning  provided  in  Section
1.03(a).

            "Unutilized Commitment"  shall mean  the excess of  the Commitment
over the Letter of Credit Outstandings at such time.

            "US   Dollar  Equivalent"  shall   mean,  at  any   time  for  the
determination  thereof, the  amount of  US Dollars  necessary to  purchase the
amount of the  relevant currency at the spot exchange  rate therefor as quoted
by the Bank as of 11:00 A.M. (London time) on the date two Business Days prior
to the date of any determination thereof for purchase on such date.

            "US  Dollars" shall mean  freely transferable lawful  money of the
United States.

            "Voting  Stock" shall mean,  with respect to  any corporation, the
outstanding stock  of all classes (or equivalent  interests) which ordinarily,
in the  absence of  contingencies, entitles  holders thereof  to vote for  the
election  of  directors (or  Persons  performing  similar functions)  of  such
corporation, even  though the  right  so to  vote has  been  suspended by  the
happening of such a contingency.

            "Wholly-Owned Subsidiary" of any  Person shall mean any Subsidiary
of such  Person to  the extent  all of the  capital stock  or other  ownership
interests  in  such Subsidiary,  other  than directors'  qualifying  shares or
shares held by  a nominee or in  trust for such  Person, is owned directly  or
indirectly by such Person.

            "Working Capital"  shall mean  the excess of  Consolidated Current
Assets  over  Consolidated  Current  Liabilities  exclusive  of  the  Holdings
Convertible Debentures.

            "Written"  or  "in  writing"  shall   mean  any  form  of  written
communication or a communication by means of telex or facsimile transmission.

            SECTION 10.  Miscellaneous.

            10.01  Payment of  Expenses, etc.  The  Obligor  agrees  to:   (i)
whether or not the  transactions herein contemplated are consummated,  pay all
reasonable out-of-pocket costs and expenses of the Bank in connection with the
negotiation, preparation, execution and  delivery of the Credit Documents  and
the documents and instruments referred to therein and any amendment, waiver or
consent relating  thereto (including, without limitation,  the reasonable fees
and disbursements  of White & Case)  and, after the occurrence  and during the
continuance of an Event of  Default, all expenses incurred in  connection with
the  enforcement of  the Credit  Documents and  the documents  and instruments
referred to therein (including, without limitation, the actual reasonable fees
and disbursements  of  counsel for  the  Bank); (ii)  pay  and hold  the  Bank
harmless from and against any and all present and  future stamp and other sim-
ilar taxes  with respect to the  foregoing matters and save  the Bank harmless
from and against any and all liabilities with respect to or resulting from any
delay  or omission (other than to the extent  attributable to the Bank) to pay
such  taxes; and (iii) indemnify the Bank, its officers, directors, employees,
representatives and agents from and hold each of them harmless against any and
all  liabilities, obligations,  losses, damages,  penalties,  claims, actions,
judgments,  suits, costs,  expenses  or disbursements  of  whatsoever kind  or
nature which may be imposed on, asserted against or incurred by any of them as
a result of, or arising out of, or in any way related to, or by reason of, (a)
any investigation, litigation or other proceeding (whether or  not the Bank is
a party thereto) related to the entering into and/or performance of any Credit
Document or the use of  the proceeds of any Letter of Credit  hereunder or the
consummation of any transactions contemplated in any Credit  Document, whether
initiated by the Obligor  or any other Person, including,  without limitation,
the actual reasonable fees and disbursements of counsel incurred in connection
with any such investigation, litigation or other proceeding (but excluding any
such losses, liabilities, claims,  damages or expenses to the  extent incurred
by reason of the  gross negligence or willful  misconduct of the Person  to be
indemnified)  or (b) the actual or alleged  presence of Hazardous Materials in
the  air,  surface  water, groundwater,  surface  or  subsurface  of any  Real
Property,  offshore drilling rig,  facility or location  at any  time owned or
operated  by Holdings  or any  of its  Subsidiaries, the  generation, storage,
transportation  or  disposal  of Hazardous  Materials  at  any  Real Property,
offshore drilling rig, facility or  location at any time owned or  operated by
Holdings or any of its Subsidiaries,  the non-compliance of any Real Property,
offshore drilling rig,  facility or location at any time  owned or operated by
Holdings  or  any of  its  Subsidiaries with  federal,  state and  local laws,
regulations, and ordinances (including applicable permits  thereunder) applic-
able to any such Real Property,  offshore drilling rig, facility or  location,
or any Environmental Claim asserted against Holdings, any of its Subsidiaries,
or any Real Property, offshore drilling rig, facility or location  at any time
owned or operated  by Holdings or any of its  Subsidiaries, including, in each
case,  without limitation,  the actual  reasonable fees  and disbursements  of
counsel  and  other   consultants  incurred  in   connection  with  any   such
investigation, litigation or other proceeding (but excluding any  losses, lia-
bilities, claims,  damages or expenses to the extent incurred by reason of the
gross  negligence or willful misconduct of the  Person to be indemnified).  To
the extent  that the undertaking to  indemnify, pay or hold  harmless the Bank
set forth  in  the  preceding sentence  may  be unenforceable  because  it  is
violative  of any  law or public  policy, the  Obligor shall  make the maximum
contribution  to the  payment  and satisfaction  of  each of  the  indemnified
liabilities which is permissible under applicable law.

            10.02  Right of Setoff. In addition to any rights now or hereafter
granted under applicable law or otherwise, and not by way of limitation of any
such rights, if an Event of Default then exists, the Bank is hereby authorized
at any  time or  from time  to time, without  presentment, demand,  protest or
other notice  of any  kind to the  Obligor or  to any  other Person, any  such
notice being hereby expressly waived, to set off and to  appropriate and apply
any and  all deposits (general or  special) and any other  Indebtedness at any
time held or owing by  the Bank (including without limitation by  branches and
agencies of the Bank wherever located) to  or for the credit or the account of
the Obligor against  and on account of the Obligations  and liabilities of the
Obligor to the  Bank under  this Agreement or  under any of  the other  Credit
Documents and all other claims of any nature or description arising out of  or
connected  with this Agreement or  any other Credit  Document, irrespective of
whether or not the Bank shall have made any demand hereunder and although said
Obligations, liabilities  or claims, or  any of  them, shall be  contingent or
unmatured.

            10.03  Notices.  (a)    Except  as  otherwise  expressly  provided
herein, all notices and  other communications provided for hereunder  shall be
in  writing (including telex or telecopier communication) and mailed, telexed,
telecopied or delivered,  if to Holdings or  its Subsidiaries, at the  address
specified  opposite  its  signature below  or  in  the  other relevant  Credit
Documents, as the case  may be; if to the  Bank, at its Notice Office;  or, at
such other address as shall be designated by any party in  a written notice to
the  other  parties hereto.   All  such  notices and  communications  shall be
effective when received.

            (b)  Without  in any way limiting the obligation of the Obligor to
confirm in writing any  telephonic notice permitted to be given hereunder, the
Bank may, prior to receipt of written confirmation, act without liability upon
the basis of such telephonic  notice believed by the Bank in good  faith to be
from  an Authorized Officer of  the Obligor.   In each such  case, the Obligor
hereby waives the  right to  dispute the Bank's  record of the  terms of  such
telephonic notice.

            10.04  Benefit of Agreement.  (a)  This Agreement shall be binding
upon  and  inure to  the  benefit  of and  be  enforceable  by the  respective
successors and assigns of  the parties hereto,  provided that the Obligor  may
not assign or transfer any of its rights or obligations  hereunder without the
prior  written  consent  of the  Bank.    The  Bank  may  at  any  time  grant
participations   in  any  of   its  rights  hereunder   to  another  financial
institution,  provided that  in  the  case  of  any  such  participation,  the
participant shall not have any rights under this Agreement or any of the other
Credit Documents (the participant's rights against the Bank in respect of such
participation to be those set forth  in the agreement executed by the Bank  in
favor of  the participant  relating thereto)  and all  amounts payable  by the
Obligor hereunder shall be determined as if the Bank had not sold such  parti-
cipation, except  that the participant  shall be entitled  to the  benefits of
Sections 1.04 and  3.03 of this Agreement to the extent that the Bank would be
entitled to  such benefits if the  participation had not been  entered into or
sold, and, provided further, that the Bank shall not transfer, grant or assign
any participation under which the participant shall have rights to approve any
amendment to or waiver of  this Agreement or any other Credit  Document except
to the extent such amendment or waiver would (i) reduce the rate or extend the
time of payment of interest or Fees (except in connection with a waiver of the
applicability of  any post-default  increase in  interest rates),  or increase
such participant's participating  interest in any  Commitment over the  amount
thereof then in  effect or (ii) consent  to the assignment or transfer  by the
Obligor of any of its rights and obligations under this Agreement.

            (b)  Notwithstanding the foregoing, (x) the Bank may assign all or
a  portion of its outstanding Commitment and  its rights and obligations here-
under to  its Affiliate and (y) with the consent of the Obligor (which consent
shall not be unreasonably  withheld), the Bank may assign all  or a portion of
its outstanding Commitment and its rights and obligations hereunder to  one or
more Eligible Transferees.  If  the Bank so sells or assigns all or  a part of
its rights hereunder, any reference in this Agreement to the Bank shall there-
after refer to the Bank and to the respective  assignee to the extent of their
respective interests and the respective assignee shall  have, to the extent of
such  assignment (unless  otherwise  provided therein),  the  same rights  and
benefits as it  would if it were  the Bank.  Each assignment  pursuant to this
Section 10.04(b) shall be effected by the Bank and the assignee bank executing
an assignment  and assumption agreement.   The Bank  and the Obligor  agree to
execute  such documents  (including,  without limitation,  amendments to  this
Agreement and the other Credit Documents) as shall be necessary  to effect the
foregoing.  

            (c)  Notwithstanding any  other provisions of  this Section 10.04,
no transfer  or  assignment  of  the  interests or  obligations  of  the  Bank
hereunder or  any grant of  participation therein  shall be permitted  if such
transfer, assignment or grant would require  Holdings or the Obligor to file a
registration statement with the SEC.

            (d)  The Bank  hereby represents, and  each Person will,  upon its
becoming party  to this Agreement, represent  that it is a  commercial lender,
other  financial institution or other "accredited" investor (as defined in SEC
Regulation D)  which makes loans  in the ordinary  course of its  business and
that  it will make  or acquire Letters  of Credit for  its own account  in the
ordinary  course  of such  business, provided  that  subject to  the preceding
clauses (a)  and  (b),  the  disposition  of any  promissory  notes  or  other
evidences  of or interests  in Indebtedness held  by such Person  shall at all
times be within its exclusive control.

            10.05  No Waiver; Remedies Cumulative.  No failure or delay on the
part  of the  Bank in exercising  any right,  power or  privilege hereunder or
under any other  Credit Document and no course of  dealing between Holdings or
any of its Subsidiaries  and the Bank shall operate  as a waiver thereof;  nor
shall any  single or partial exercise  of any right, power  or privilege here-
under  or  under  any other  Credit  Document preclude  any  other  or further
exercise thereof  or the exercise of any other right, power or privilege here-
under or thereunder.   The rights and remedies  herein expressly provided  are
cumulative and  not exclusive of any  rights or remedies which  the Bank would
otherwise have.  No notice to or demand on Holdings or any of its Subsidiaries
in any case shall entitle Holdings or any of  its Subsidiaries to any other or
further notice  or demand in  similar or other  circumstances or constitute  a
waiver of the rights  of the Bank to any  other or further action in  any cir-
cumstances without notice or demand.

            10.06  Calculations; Computations.  (a)  The financial  statements
to be furnished  to the  Bank pursuant hereto  shall be  made and prepared  in
accordance  with GAAP  consistently  applied throughout  the periods  involved
(except as set forth in the notes thereto or as otherwise disclosed in writing
by Holdings or the Obligor to the Bank), provided that (x) except as otherwise
specifically  provided herein,  all computations  determining compliance  with
Section  7,  including  definitions  used therein,  shall  utilize  accounting
principles and policies in  effect at the time  of the preparation of, and  in
conformity  with those  used  to prepare,  the  December 31,  1995  historical
financial statements of  Holdings delivered  to the Bank  pursuant to  Section
5.10(b) and (y)  that if at any  time the computations determining  compliance
with  Section 7 utilize accounting principles different from those utilized in
the financial  statements  furnished to  the Bank,  such financial  statements
shall be accompanied by reconciliation work-sheets.

            (b)  All computations of interest and Fees hereunder shall be made
on the actual number of days elapsed over a year of 360 days.

            10.07  GOVERNING LAW; SUBMISSION TO JURISDICTION; VENUE; WAIVER OF
JURY TRIAL.  (a)  THIS AGREEMENT AND THE OTHER CREDIT DOCUMENTS AND THE RIGHTS
AND OBLIGATIONS OF THE PARTIES HEREUNDER  AND THEREUNDER SHALL BE CONSTRUED IN
ACCORDANCE WITH  AND BE GOVERNED  BY THE LAW  OF THE STATE  OF NEW YORK.   ANY
LEGAL ACTION  OR PROCEEDING WITH RESPECT TO THIS AGREEMENT OR ANY OTHER CREDIT
DOCUMENT MAY BE  BROUGHT IN  THE COURTS OF  THE STATE  OF NEW YORK  OR OF  THE
UNITED STATES  FOR THE SOUTHERN  DISTRICT OF NEW  YORK, AND, BY  EXECUTION AND
DELIVERY OF THIS AGREEMENT, HOLDINGS AND THE OBLIGOR HEREBY IRREVOCABLY ACCEPT
FOR   THEMSELVES  AND   IN   RESPECT   OF   THEIR  PROPERTY,   GENERALLY   AND
UNCONDITIONALLY, THE JURISDICTION OF  THE AFORESAID COURTS.  HOLDINGS  AND THE
OBLIGOR FURTHER  IRREVOCABLY CONSENT TO THE  SERVICE OF PROCESS OUT  OF ANY OF
THE  AFOREMENTIONED COURTS IN ANY SUCH ACTION  OR PROCEEDING BY THE MAILING OF
COPIES  THEREOF BY  REGISTERED  OR CERTIFIED  MAIL,  POSTAGE PREPAID,  TO  THE
OBLIGOR LOCATED  OUTSIDE NEW YORK  CITY AND  BY HAND  DELIVERY TO  THE OBLIGOR
LOCATED  WITHIN NEW YORK CITY, AT ITS  ADDRESS FOR NOTICES PURSUANT TO SECTION
10.03, SUCH SERVICE  TO BECOME EFFECTIVE 30 DAYS AFTER  SUCH MAILING.  NOTHING
HEREIN SHALL AFFECT THE RIGHT OF THE BANK TO SERVE PROCESS IN ANY OTHER MANNER
PERMITTED BY LAW OR TO COMMENCE LEGAL PROCEEDINGS OR OTHERWISE PROCEED AGAINST
HOLDINGS OR THE OBLIGOR IN ANY OTHER JURISDICTION.

            (b)  HOLDINGS  AND  THE  OBLIGOR   HEREBY  IRREVOCABLY  WAIVE  ANY
OBJECTION WHICH THEY MAY NOW OR HEREAFTER  HAVE TO THE LAYING OF VENUE OF  ANY
OF THE AFORESAID ACTIONS OR  PROCEEDINGS ARISING OUT OF OR IN  CONNECTION WITH
THIS AGREEMENT OR ANY OTHER CREDIT DOCUMENT BROUGHT IN THE  COURTS REFERRED TO
IN CLAUSE  (A) ABOVE  AND HEREBY  FURTHER IRREVOCABLY WAIVE  AND AGREE  NOT TO
PLEAD OR CLAIM IN ANY SUCH COURT THAT ANY SUCH ACTION OR PROCEEDING BROUGHT IN
ANY SUCH COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

            (c)  EACH  OF THE  PARTIES  TO THIS  AGREEMENT HEREBY  IRREVOCABLY
WAIVES ALL RIGHT TO A TRIAL BY JURY IN ANY ACTION,  PROCEEDING OR COUNTERCLAIM
ARISING OUT  OF OR RELATING TO  THIS AGREEMENT, THE OTHER  CREDIT DOCUMENTS OR
THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

            10.08  Counterparts.  This Agreement may be executed in any number
of  counterparts and by the different parties hereto on separate counterparts,
each of which  when so executed and delivered shall be an original, but all of
which  shall together  constitute  one and  the  same instrument.    A set  of
counterparts executed  by all  the  parties hereto  shall be  lodged with  the
Obligor and the Bank.

            10.09  Effectiveness. This Agreement shall become effective on the
date (the "Effective Date") on which Holdings, the Obligor and  the Bank shall
have signed  a copy hereof  (whether the same  or different copies)  and shall
have delivered the same to the Bank at the Payment Office of the Bank.

            10.10  Headings Descriptive.  The headings of the several sections
and subsections of this Agreement are  inserted for convenience only and shall
not in  any way affect  the meaning or  construction of any provision  of this
Agreement.

            10.11  Amendment  or Waiver.  (a) Neither  this Agreement  nor any
other Credit  Document nor any terms hereof or thereof may be changed, waived,
discharged or terminated unless such change,  waiver, discharge or termination
is in writing signed by the Obligor and the Bank.

            10.12  Survival.  All indemnities  set  forth   herein  including,
without limitation,  in Section  1.04, 1.05, 3.03  or 10.01 shall  survive the
execution and delivery of this  Agreement and the making and repayment  of the
Letters of Credit.

            10.13  Domicile of Letters of  Credit.  The Bank may  transfer and
carry  its Letters of Credit  at, to or for the  account of any branch office,
subsidiary or  Affiliate of the Bank,  provided that the Obligor  shall not be
responsible for  costs arising under Section  1.04 or 3.03 resulting  from any
such transfer  (other  than a  transfer pursuant  to Section  1.12(a)) to  the
extent not otherwise applicable to the Bank prior to such transfer.

            10.14  Confidentiality.  Subject to Section 10.04, the Bank  shall
hold  all non-public information obtained pursuant to the requirements of this
Agreement in accordance with its customary procedure for handling confidential
information of this nature and in accordance with safe and sound banking prac-
tices and  in any event  may make disclosure  reasonably required by  any bona
fide transferee or participant in connection with the contemplated transfer of
any Letters of Credit or participation therein (so long as  such transferee or
participant agrees to be bound by the provisions of this Section 10.14)  or as
required  or requested by any governmental agency or representative thereof or
pursuant to legal  process, provided that,  unless specifically prohibited  by
applicable  law or  court order,  the  Bank shall  notify the  Obligor of  any
request by any governmental  agency or representative thereof (other  than any
such request in  connection with an examination of the  financial condition of
the Bank by  such governmental agency) for  disclosure of any such  non-public
information prior to disclosure of such information, and provided further that
in no event shall  the Bank be obligated or  required to return any  materials
furnished by Holdings or any Subsidiary.

            10.15  Registry.  The Obligor hereby designates the  Bank to serve
as the Obligor's agent, solely for purposes of this Section 10.15, to maintain
a register  (the "Register")  on  which it  will record  the Commitments,  the
Letters  of  Credit issued  and outstanding  hereunder  and each  repayment in
respect of  Unpaid Drawings.   Failure  to make any  such recordation,  or any
error  in such  recordation  shall not  affect  the Obligor's  obligations  in
respect of  such Letters of  Credit.  The transfer  of the Commitments  of the
Bank and the rights to the fees  and interest on, any Letter of Credit  issued
pursuant to  such Commitment  shall not be  effective until  such transfer  is
recorded  on the Register maintained by the  Bank with respect to ownership of
such  Commitment  and  prior to  such  recordation  all amounts  owing  to the
transferor  with  respect  to  such  Commitment  shall  remain  owing  to  the
transferor.  

            SECTION 11.  Holdings Guaranty.

            11.01  The Guaranty.  In order  to induce  the Bank to  enter into
this Agreement and to extend credit hereunder and in recognition of the direct
benefits  to  be received  by Holdings  from the  issuance  of the  Letters of
Credit,  Holdings hereby  agrees with  the Bank as  follows:   Holdings hereby
unconditionally and irrevocably  guarantees as primary obligor  and not merely
as surety  the full and  prompt payment  when due, whether  upon maturity,  by
acceleration or otherwise, of any and all of the Guaranteed Obligations of the
Obligor to the Bank.  If any or all of the Guaranteed Obligations of  the Obl-
igor to the Bank  becomes due and payable hereunder,  Holdings unconditionally
promises  to pay such indebtedness to the  Bank, on order, or demand, together
with any and all reasonable expenses which may be incurred by the Bank in col-
lecting any of the Guaranteed Obligations.

            11.02  Bankruptcy.   Additionally,  Holdings  unconditionally  and
irrevocably   guarantees  the  payment  of  any  and  all  of  the  Guaranteed
Obligations of the Obligor to  the Bank whether or not then due  or payable by
the Obligor upon the occurrence in respect of the Obligor of any of the events
specified in Section 8.05, and unconditionally and irrevocably promises to pay
such Guaranteed Obligations to the Bank, on order, or demand,  in lawful money
of the United States.  Holdings' guaranty of the payment of any and all of the
Guaranteed Obligations hereunder  shall constitute a guaranty of  payment, and
not of collection.

            11.03  Nature of Liability. The liability of Holdings hereunder is
exclusive  and  independent of  any  security for  or  other  guaranty of  the
Guaranteed  Obligations of the Obligor whether executed by Holdings, any other
guarantor or by any other party, and the liability of Holdings hereunder shall
not be affected or impaired by (a) any direction as to  application of payment
by the Obligor  or by any  other party, or (b)  any other continuing  or other
guaranty, undertaking  or maximum liability  of a  guarantor or  of any  other
party as to  the Guaranteed Obligations of the Obligor, or  (c) any payment on
or in reduction of any  such other guaranty or undertaking, or (d) any dissol-
ution, termination or increase,  decrease or change in  personnel by the  Obl-
igor, or (e) any payment made to  the Bank on the indebtedness which the  Bank
repay the Obligor pursuant  to court order in any  bankruptcy, reorganization,
arrangement, moratorium or other debtor relief proceeding, and Holdings waives
any right to the deferral or modification of its obligations hereunder by rea-
son of any such proceeding.

            11.04  Independent  Obligation.    The  obligations  of   Holdings
hereunder are  independent of the  obligations of any  other guarantor  or the
Obligor, and  a  separate action  or  actions may  be  brought and  prosecuted
against Holdings  whether or not action is brought against any other guarantor
or the Obligor and whether or not any other guarantor or the Obligor be joined
in any such action or actions.  Holdings waives, to the fullest extent permit-
ted by law, the benefit of any statute of limitations  affecting its liability
hereunder or  the enforcement thereof.   Any payment  by the Obligor  or other
circumstance which operates to toll any  statute of limitations as to the Obl-
igor shall operate to toll the statute of limitations as to Holdings.

            11.05  Waiver of  Notice, etc.   Holdings hereby waives notice  of
acceptance of this Guaranty and notice of any liability to which it may apply,
and  waives promptness,  diligence, presentment,  demand of  payment, protest,
notice of  dishonor or nonpayment of  any such liabilities, suit  or taking of
other  action by the Bank  against, and any other  notice to, any party liable
thereon (including Holdings, any other guarantor or the Obligor).

            11.06  Authorization.  Holdings authorizes the Bank without notice
or demand (except  as shall be  required by applicable  statute and cannot  be
waived), and without affecting or impairing its liability hereunder, from time
to time to:

            (a)  change  the manner,  place  or terms  of  payment of,  and/or
      change  or extend the time of payment of, renew, increase, accelerate or
      alter, any  of the  Guaranteed  Obligations (including  any increase  or
      decrease in the rate of interest thereon), any security therefor, or any
      liability incurred  directly or indirectly  in respect thereof,  and the
      Guaranty herein made  shall apply  to the Guaranteed  Obligations as  so
      changed, extended, renewed or altered;

            (b)  take  and hold  security for  the payment  of  the Guaranteed
      Obligations  and sell,  exchange,  release, surrender,  realize upon  or
      otherwise  deal with  in any  manner and  in any  order any  property by
      whomsoever  at any  time pledged  or mortgaged  to secure,  or howsoever
      securing, the  Guaranteed Obligations or any  liabilities (including any
      of those hereunder)  incurred directly or indirectly  in respect thereof
      or hereof, and/or any offset thereagainst;

            (c)  exercise or  refrain from  exercising any rights  against the
      Obligor or others or otherwise act or refrain from acting;

            (d)  release or substitute any  one or more endorsers, guarantors,
      the Obligor or other obligors;

            (e)  settle or  compromise any of the  Guaranteed Obligations, any
      security therefor or  any liability (including  any of those  hereunder)
      incurred  directly or indirectly in  respect thereof or  hereof, and may
      subordinate the payment of all or any part thereof to the payment of any
      liability (whether due  or not) of  the Obligor  to its creditors  other
      than the Bank;

            (f)  apply any sums  by whomsoever paid  or howsoever realized  to
      any liability or liabilities  of the Obligor to  the Bank regardless  of
      what liability or liabilities of Holdings or the Obligor remain unpaid;

            (g)  consent to or  waive any breach  of, or any act,  omission or
      default  under, this Agreement or  any of the  instruments or agreements
      referred to  herein,  or  otherwise amend,  modify  or  supplement  this
      Agreement or any of such other instruments or agreements; and/or

            (h)  take any other action which would, under otherwise applicable
      principles of common law, give rise to a legal or equitable discharge of
      Holdings from its liabilities under this Section 13.

            11.07  Reliance.  It is not necessary for the Bank to inquire into
the capacity or  powers of the  Obligor or its  Subsidiaries or the  officers,
directors, partners or  agents acting or purporting to act  on its behalf, and
any  Guaranteed Obligations  made or  created in  reliance upon  the professed
exercise of such powers shall be guaranteed hereunder.

            11.08  Subordination.   Any of  the  indebtedness  of the  Obligor
relating to the Guaranteed Obligations  now or hereafter owing to  Holdings is
hereby subordinated to the  Guaranteed Obligations of the Obligor owing to the
Bank; and if the Bank so requests at  a time when an Event of Default  exists,
all such indebtedness relating to the Guaranteed Obligations of the Obligor to
Holdings shall be collected, enforced and received by Holdings for the benefit
of  the  Bank and  be  paid over  to  the Bank  on  account of  the Guaranteed
Obligations of the Obligor to the Bank, but without affecting  or impairing in
any manner the liability of Holdings  under the other provisions of this Guar-
anty.  Prior to the transfer by Holdings of any note or negotiable  instrument
evidencing any of the  indebtedness relating to the Guaranteed  Obligations of
the  Obligor  to  Holdings,  Holdings  shall  mark  such  note  or  negotiable
instrument with a legend that the same is subject to this subordination.

            11.09  Waiver.  (a) Holdings waives  any right (except as shall be
required by  applicable statute and cannot  be waived) to require  the Bank to
(i) proceed against the Obligor, any other guarantor or any  other party, (ii)
proceed against  or exhaust  any security  held  from the  Obligor, any  other
guarantor or any  other party or (iii)  pursue any other remedy  in the Bank's
power whatsoever.  Holdings waives any defense based on or arising  out of any
defense of  the Obligor, any  other guarantor or  any other party,  other than
payment in full of the Guaranteed Obligations, based  on or arising out of the
disability  of the  Obligor, any other  guarantor or  any other  party, or the
unenforceability  of the Guaranteed Obligations  or any part  thereof from any
cause, or the cessation from any cause  of the liability of the Obligor  other
than payment  in full of  the Guaranteed  Obligations.  The  Bank may,  at its
election, foreclose on any  security held by the Bank by  one or more judicial
or  nonjudicial  sales, whether  or  not  every aspect  of  any  such sale  is
commercially  reasonable (to the extent  such sale is  permitted by applicable
law),  or exercise any  other right  or remedy the  Bank may have  against the
Obligor or any other party, or any security, without affecting or impairing in
any  way  the  liability  of  Holdings  hereunder except  to  the  extent  the
Guaranteed  Obligations have been paid.   Holdings waives  any defense arising
out of any  such election by the  Bank, even though such election  operates to
impair or  extinguish any right of reimbursement or subrogation or other right
or remedy of Holdings against the Obligor or any other party or any security.

            (b)  Holdings  waives all  presentments, demands  for performance,
protests   and   notices,   including,    without   limitation,   notices   of
nonperformance, notices of protest, notices of dishonor, notices of acceptance
of  this Guaranty, and notices of the  existence, creation or incurring of new
or additional Guaranteed Obligations.  Holdings assumes all responsibility for
being and keeping  itself informed  of the Obligor's  financial condition  and
assets, and  of all other circumstances bearing upon the risk of nonpayment of
the Guaranteed Obligations and the nature, scope and extent of the risks which
Holdings assumes and incurs hereunder, and  agrees that the Bank shall have no
duty to  advise Holdings  of  information known  to them  regarding such  cir-
cumstances or risks.


                         *             *            *



            (c)   IN  WITNESS WHEREOF, each of the parties hereto has caused a
counterpart of this Agreement to be duly executed and delivered as of the date
first above written.

Address:                      READING & BATES CORPORATION

901 Threadneedle
Suite 200
Houston, Texas  77079         By                                   
Attn:  General Counsel           Name:  
Telephone:  (713) 496-5000       Title: 
Facsimile:  (713) 496-0285


                              READING & BATES DRILLING CO.



                              By                                   
                                  Name:  
                                  Title: 


11 West 42nd Street           CHRISTIANIA BANK OG KREDITKASSE, NEW YORK
7th Floor                     BRANCH
New York, NY  10036
Attn:  Hans Chr. Kjelsrud
Tel. No.:  (212) 827-4800
Fax No.:   (212) 827-4888     By                                   
                                  Name:  
                                  Title: 



                              By                                   
                                  Name:
                                  Title:


                                                                Exhibit 10.152

                            PARTICIPATION AGREEMENT
                   OUTER CONTINENTAL SHELF - GULF OF MEXICO

This Participation Agreement ("Agreement")  is entered into effective December
4, 1996  by and  between  Santa Fe  Energy Resources,  Inc.  ("Santa Fe")  and
Reading & Bates  Development Co. ("RB").   Santa Fe and RB  may hereinafter be
referred to individually as "Party" or collectively as "Parties".

In consideration of the mutual covenants and obligations contained herein, the
parties hereby agree to the  following basic terms and conditions  under which
RB  shall acquire an interest in certain  Outer Continental Shelf ("OCS") Gulf
of  Mexico leases from Santa Fe with the  intent that the Parties will jointly
explore  and develop  such leases  pursuant to  a mutually  acceptable program
("Program").

1.    The  Gulf of Mexico  leases ("Leases"), blocks  ("Blocks") and prospects
      ("Prospects") covered by this Agreement are the following:

      a.    Prospect Tourmaline
            (i)   Lease OCS - G 16404, Ship Shoal, South Addition, Block 365
            (ii)  Lease OCS - G 16405, Ship Shoal, South Addition, Block 366

      b.    Prospect Emerald
            (i)   Lease OCS - G 16567, Ewing Bank, Block 786
            (ii)  Lease OCS - G 16568, Ewing Bank, Block 787

      c.    Prospect Ruby
            (i)   Lease OCS - G 16578, Ewing Bank, Block 919
            (ii)  Lease OCS - G 16579, Ewing Bank, Block 920

      d.    Prospect Amundsen
            (i)   Lease OCS - G 17251, East Breaks, Block 335

      e.    Prospect Knight
            (i)   Lease award pending, Garden Banks, Block 372

2.    Santa Fe holds 100%  record title interest in all of  the Leases.  Santa
      Fe was high bidder at OCS Lease Sale 161 for Garden Banks, Block 372 and
      anticipates lease award of 100% record title before December 31, l996.

3.    RB will acquire an undivided fifty percent (50%) interest  in the Leases
      by agreeing to pay 100% of the initial exploration and drilling costs on
      the Leases incurred after the Closing up to a maximum of $24,353,610, as
      provided in  this paragraph  3.   In the  event the Minerals  Management
      Service ("MMS") does not award the  lease for Garden Banks, Block 372 to
      Santa Fe, RB's maximum obligation  to pay 100% of costs will  be reduced
      from $24,353,610 to $21,665,522.   Thereupon, said Block will  no longer
      be  covered by  this Agreement,  but  it will  still be  subject to  the
      Confidentiality Agreement dated  October 22, 1996, by  and between Santa
      Fe and RB.

      Closing shall occur in the offices  of Santa Fe on December 11, 1996  or
      such other time as may  be mutually agreed by the Parties.   At Closing, 
      RB agrees to pay a cash advance of $12,176,805 to Santa Fe, as Operator,
      to fund  50% of RB's obligation  to pay 100% of  the initial exploration
      and drilling costs as described  above.  Santa Fe will cash  call RB for
      the remaining 50% as costs are incurred, in accordance with the terms of
      the JOA's (as defined below).

4.    The  Parties  will enter  into  mutually  acceptable offshore  operating
      agreements covering each Prospect, designating Santa Fe as Operator (the
      "JOA's").

5.    After  fulfilling its obligation as  described in paragraph  3 above, RB
      will  pay its proportionate fifty  percent (50%) share  of ongoing costs
      relative to the Prospects, including drilling and development costs,  as
      provided in the JOA's, and Santa Fe will do likewise.

6.    In the event of a discovery of hydrocarbons in commercial  quantities on
      one or more of  the Prospects, RB  shall pay to Santa  Fe the amount  of
      $500,000 for  the first discovery on each Prospect.  Such amount will be
      paid  thirty (30) days after the  date of the first  sale of  production
      from each such discovery.   Only one $500,000 payment per  Prospect will
      be due and only in the event of a discovery on such Prospect.

7.    The  Parties agree  that Total  Offshore Production Systems  ("TOPS"), a
      joint  venture  in which  RB has  an  ownership interest,  shall  be the
      designated  contractor  of  the  Parties  for  the  development  of  any
      discoveries made  under the Program (exclusive  of drilling, completion,
      or other downhole  operations), such work  to be undertaken by  TOPS, at
      the  option of the Parties exercised under the relevant JOA's, either on
      the basis of a mutually agreeable fixed turnkey price or on the basis of
      reimbursement of TOPS documented costs (including overhead) plus a fixed
      15%  markup  on  such  costs.  Alternative  incentive  and/or  gainshare
      provisions shall be  subject to  mutual agreement between  TOPS and  the
      Parties. 

8.    TOPS  will make  a presentation  to Santa  Fe regarding  the development
      technology  and  operations  that  will  be  employed  by  TOPS  in  its
      performance of the work on each Prospect.

9.    Santa Fe has  contracted with  Diamond Offshore Drilling,  Inc. for  the
      Ocean Whittington rig to drill the  initial well in each Prospect,  with
      the  exception of  Prospect Amundsen.   Prospect  Knight is  the initial
      Prospect to be  drilled under  the Program (currently  scheduled in  the
      second  quarter of  1997),  subject to  lease  award. The  Parties  will
      mutually  agree on the drilling order  following Prospect Knight, taking
      into account minimizing rig mob/demob.

10.   The  Parties will execute other agreements including, but not limited to
      the JOA's,  as may be necessary to carry out  the intent of the Parties.
      At closing Santa Fe shall assign an undivided fifty percent (50%) record
      title  interest in  each such  Lease, free  and clear  of all  liens and
      encumbrances  (other than  RB's obligation  to pay  all exploration  and
      drilling costs up to a maximum  of $24,353,610 as described in paragraph
      3 above  and the royalty provided  therein) and with all  cash bonus and
      delay rentals paid to date, to  RB, subject to the approval of the  MMS,
      each such assignment to be substantially in the form attached as Exhibit
      "A" hereto.  In the event any such approval has not been obtained within
      one year after the date of closing, or such other time period as  may be
      mutually agreed  by the Parties,  each non-approved assignment  shall be
      deemed to be void,  and Santa Fe shall return to RB  that portion of the
      amount paid by RB as specified  in paragraph 3 above attributable to the
      Lease covered by each such non-approved assignment.

11.   RB  will  have  seventy-five (75)  days  from the  date  of  a technical
      presentation by Santa Fe,  to be held on or about December  16, 1996, in
      which to elect to acquire fifty percent (50%) of Santa  Fe's interest in
      one  or  more  of seven  additional  prospects  (Scott,  Cortez, DeLong,
      Baritone, Columbus, Boone, Stefansson), on the same terms and conditions
      as set forth herein, and in accordance with the Schedule attached hereto
      as  Exhibit "B".   Leases  for Scott, Cortez,  DeLong, Baritone  and the
      south half  of Columbus have been awarded to  Santa Fe.  Lease award for
      the north half of Columbus, Boone and Stefansson are pending.

12.   This Agreement is  not assignable  by either Party  without the  express
      prior written consent of the other Party.  The interest in the Leases to
      be  acquired by  RB in  accordance with  Section 10  above shall  not be
      assigned by  RB without  the prior  written consent  of Santa Fe,  which
      shall  not be  unreasonably  withheld.   Notwithstanding the  foregoing,
      neither party shall sell, assign or transfer its interests in the Leases
      to a  third party without first  offering to sell such  interests to the
      other Party hereto on substantially the same terms and conditions.

1.   Except  as is otherwise  provided herein  the respective  obligations and
     liabilities of the Parties shall be several, not joint or collective, and
     each Party shall be responsible only for its own  obligations.  It is not
     the  purpose  or intention  of  this Agreement  to create  a relationship
     whereby the Parties  shall be liable  for acts, either  of commission  or
     omission,  of the  other  Parties, except  within  the limited  scope  of
     authorized joint venture activity.

1.   This Agreement  represents the entire  understanding of the  parties with
     respect  to the  basic  terms and  conditions  and supersedes  all  prior
     agreements, understandings  and discussions, whether oral  or written, of
     the Parties pertaining  to the subject matter hereof, with  the exception
     of the Confidentiality Agreement  referred to in paragraph 3  hereof.  No
     modification  of  this  Agreement shall  be  binding  unless  executed in
     writing by the Parties.

1.   This Agreement shall be effective as of the date first written above and,
     when  executed  by an  authorized  representative  of  each Party,  shall
     constitute a fully effective and binding document.


SANTA FE ENERGY RESOURCES,  INC.      READING & BATES DEVELOPMENT CO.



By:____________________________      By:______________________________
       A. T. McCarroll                       D. C. Toalson
       Division Manager, Exploration         President
       Gulf Division


                                                                Exhibit 10.153

                      ASSIGNMENT OF RECORD TITLE INTEREST

UNITED STATES OF AMERICA
OUTER CONTINENTAL SHELF
OFFSHORE LOUISIANA
                                  WITNESSETH:

THAT, SANTA FE ENERGY RESOURCES, INC., a  Delaware corporation, the address of
which  is 1616 South Voss, Suite  1000, Houston, Texas 77057 ( Assignor ), for
valuable  consideration,  the  receipt  and sufficiency  of  which  is  hereby
acknowledged,  does  hereby grant,  convey,  assign, transfer  and  deliver to
READING & BATES DEVELOPMENT  CO., a Delaware corporation, the address of which
is  901 Threadneedle,  Houston,  Texas 77079-2902  ( Assignee ), an  undivided
fifty percent (50.00000%) record title interest (the  Interest ) in and to the
following described Oil and Gas Lease (hereinafter the  Lease ), to wit:

      Oil and Gas  Lease of  Submerged Lands under the Outer Continental
      Shelf  Lands  Act,  bearing  Serial  No.  OCS-G  16404,  effective
      September  1, 1996  covering all  of Block  365, Ship  Shoal Area,
      South Addition,  OCS Leasing Map No.  5A, containing approximately
      5000 acres, more or less.

TO  HAVE AND  TO HOLD  the Interest  in and  to the  Lease unto  Assignee, its
successors and  assigns, together with  all rights and  privileges appurtenant
thereto, subject to and in accordance with all the terms and provisions of the
Lease.

This  Assignment  is  made without  warranty  of  title,  express, implied  or
statutory,  except  as  to persons  lawfully  claiming  by,  through or  under
Assignor, but not  otherwise; however, Assignee shall  have the right of  full
substitution and  subrogation, to the extent assignable, in and to any and all
rights  and  actions  in   warranty  which  Assignor  may  have   against  its
predecessors in title.

This Assignment  is made by Assignor  and accepted by Assignee  subject to all
the  terms and  conditions  of  that  certain  Participation  Agreement  dated
December 4,  1996.  Assignor warrants that the Interest  is not subject to any
liens or  encumbrances other than  Lessor s royalty and  that lease bonus  and
delay rentals have been paid to date.

The terms and conditions of this Assignment  shall inure to the benefit of and
be  binding  upon  the parties  hereto  and  their  respective successors  and
assigns.

This  Assignment is made effective December 11,  1996, subject to the approval
by  the Minerals Management Service, United States Department of the Interior,
pursuant to 30 CFR 256.

IN WITNESS WHEREOF, this  Assignment is executed as of the  dates shown in the
respective acknowledgments  of  the  parties hereto,  but  effective  for  all
purposes as of December 11, 1996. 


                                    ASSIGNOR:

Witnesses:                          SANTA FE ENERGY RESOURCES, INC.



                                    By:         A. T. McCarroll
                                    Title:      Division Manager, Exploration
                                                Gulf Division

                                    ASSIGNEE:

Witnesses:                          READING & BATES DEVELOPMENT CO.

                                    By:     Wayne K. Hillin
                                    Title:  Secretary 


                                                                Exhibit 10.154

ASSIGNMENT OF RECORD TITLE INTEREST

UNITED STATES OF AMERICA
OUTER CONTINENTAL SHELF
OFFSHORE LOUISIANA
                                  WITNESSETH:

THAT, SANTA FE ENERGY RESOURCES,  INC., a Delaware corporation, the address of
which is 1616 South Voss,  Suite 1000, Houston, Texas  77057 ( Assignor ), for
valuable  consideration,  the  receipt  and  sufficiency  of which  is  hereby
acknowledged,  does  hereby  grant, convey,  assign,  transfer and deliver  to
READING &  BATES DEVELOPMENT CO., a Delaware corporation, the address of which
is  901 Threadneedle,  Houston,  Texas  77079-2902 ( Assignee ),  an undivided
fifty percent (50.00000%) record title interest (the  Interest ) in and to the
following described Oil and Gas Lease (hereinafter the  Lease ), to wit:

      Oil  and Gas Lease of  Submerged  Lands under the Outer Continental
      Shelf  Lands  Act,  bearing  Serial  No.   OCS-G  16405,  effective
      September  1, 1996  covering  all of  Block  366, Ship  Shoal Area,
      South Addition,  OCS Leasing Map  No. 5A, containing  approximately
      5000 acres, more or less.

TO HAVE  AND TO  HOLD  the Interest  in and  to the  Lease unto  Assignee, its
successors and  assigns, together  with all  rights and privileges appurtenant
thereto, subject to and in accordance with all the terms and provisions of the
Lease.

This Assignment  is  made  without  warranty  of  title,  express,  implied or
statutory, except  as  to  persons  lawfully  claiming  by,  through  or under
Assignor,  but not  otherwise; however, Assignee  shall have the right of full
substitution and subrogation, to the extent assignable, in and to any and  all
rights  and   actions  in  warranty  which   Assignor  may  have  against  its
predecessors in title.

This Assignment is made by Assignor  and accepted by  Assignee subject to  all
the  terms  and conditions  of  that  certain  Participation  Agreement  dated
December 4, 1996.  Assignor warrants that the  Interest is not subject to  any
liens or encumbrances other  than Lessor s  royalty and  that lease  bonus and
delay rentals have been paid to date.

The terms and conditions  of this Assignment shall inure to the benefit of and
be binding  upon  the  parties  hereto  and  their  respective  successors and
assigns.

This Assignment is made  effective December 11, 1996,  subject to the approval
by the Minerals Management Service,  United States Department of the Interior,
pursuant to 30 CFR 256.

IN WITNESS WHEREOF,  this Assignment is executed as  of the dates shown in the
respective  acknowledgments of  the  parties  hereto,  but  effective  for all
purposes as of December 11, 1996.  

                                    ASSIGNOR:

Witnesses:                          SANTA FE ENERGY RESOURCES, INC.


                                    By:         A. T. McCarroll
                                    Title:      Division Manager, Exploration
                                                Gulf Division

                                    ASSIGNEE:

Witnesses:                          READING & BATES DEVELOPMENT CO.

                                    By:     Wayne K. Hillin 
                                    Title:  Secretary



                                                                Exhibit 10.155

                      ASSIGNMENT OF RECORD TITLE INTEREST

UNITED STATES OF AMERICA
OUTER CONTINENTAL SHELF
OFFSHORE LOUISIANA
                                  WITNESSETH:

THAT, SANTA FE ENERGY RESOURCES, INC., a Delaware corporation,  the address of
which is 1616  South Voss, Suite 1000, Houston,  Texas 77057 ( Assignor ), for
valuable  consideration,  the  receipt  and  sufficiency of  which  is  hereby
acknowledged,  does hereby  grant,  convey, assign,  transfer  and deliver  to
READING & BATES DEVELOPMENT CO., a  Delaware corporation, the address of which
is  901 Threadneedle,  Houston,  Texas 77079-2902  ( Assignee ), an  undivided
fifty percent (50.00000%) record title interest (the  Interest ) in and to the
following described Oil and Gas Lease (hereinafter the  Lease ), to wit:

      Oil and Gas Lease of   Submerged Lands under the Outer Continental
      Shelf  Lands  Act,  bearing  Serial  No.  OCS-G  16567,  effective
      September  1,  1996 covering  all of  Block  786, Ewing  Bank, OCS
      Official Protraction Diagram, NG 15-12,  containing  approximately
      2006.38 acres, more or less.

TO  HAVE AND  TO HOLD  the Interest  in and  to the  Lease unto  Assignee, its
successors  and assigns, together  with all rights  and privileges appurtenant
thereto, subject to and in accordance with all the terms and provisions of the
Lease.

This  Assignment  is  made without  warranty  of  title,  express, implied  or
statutory,  except  as  to persons  lawfully  claiming  by,  through or  under
Assignor, but  not otherwise; however,  Assignee shall have the  right of full
substitution and subrogation, to the extent assignable, in and to  any and all
rights  and  actions  in   warranty  which  Assignor  may  have   against  its
predecessors in title.

This Assignment  is made by Assignor  and accepted by Assignee  subject to all
the  terms  and  conditions  of that  certain  Participation  Agreement  dated
December  4, 1996.  Assignor warrants that  the Interest is not subject to any
liens or  encumbrances other  than Lessor s royalty  and that lease  bonus and
delay rentals have been paid to date.

The terms and conditions of this Assignment shall inure to the  benefit of and
be  binding  upon  the parties  hereto  and  their  respective successors  and
assigns.

This Assignment is  made effective December 11, 1996, subject  to the approval
by  the Minerals Management Service, United States Department of the Interior,
pursuant to 30 CFR 256.

IN WITNESS  WHEREOF, this Assignment is executed as of  the dates shown in the
respective  acknowledgments  of the  parties  hereto,  but effective  for  all
purposes as of December 11, 1996. 
 
                                   ASSIGNOR:

Witnesses:                          SANTA FE ENERGY RESOURCES, INC.



                                    By:         A. T. McCarroll
                                    Title:      Division Manager, Exploration
                                                Gulf Division

                                    ASSIGNEE:

Witnesses:                          READING & BATES DEVELOPMENT CO.

                                    By:     Wayne K. Hillin 
                                    Title:  Secretary 




                                                                Exhibit 10.156

                      ASSIGNMENT OF RECORD TITLE INTEREST

UNITED STATES OF AMERICA
OUTER CONTINENTAL SHELF
OFFSHORE LOUISIANA
                                  WITNESSETH:

THAT, SANTA FE ENERGY RESOURCES, INC., a  Delaware corporation, the address of
which  is 1616 South Voss, Suite  1000, Houston, Texas 77057 ( Assignor ), for
valuable  consideration,  the  receipt  and sufficiency  of  which  is  hereby
acknowledged,  does  hereby grant,  convey,  assign, transfer  and  deliver to
READING & BATES DEVELOPMENT  CO., a Delaware corporation, the address of which
is  901 Threadneedle,  Houston,  Texas 77079-2902  ( Assignee ), an  undivided
fifty percent (50.00000%) record title interest (the  Interest ) in and to the
following described Oil and Gas Lease (hereinafter the  Lease ), to wit:

      Oil and Gas  Lease of  Submerged Lands under the Outer Continental
      Shelf  Lands  Act,  bearing  Serial  No.  OCS-G  16568,  effective
      September  1,  1996 covering  all of  Block  787, Ewing  Bank, OCS
      Official Protraction Diagram, NG  15-12,  containing approximately
      4692.21 acres, more or less.

TO  HAVE AND  TO HOLD  the Interest  in and  to the  Lease unto  Assignee, its
successors and  assigns, together with  all rights and  privileges appurtenant
thereto, subject to and in accordance with all the terms and provisions of the
Lease.

This  Assignment  is  made without  warranty  of  title,  express, implied  or
statutory,  except  as  to persons  lawfully  claiming  by,  through or  under
Assignor, but not  otherwise; however, Assignee shall  have the right of  full
substitution and  subrogation, to the extent assignable, in and to any and all
rights  and  actions  in   warranty  which  Assignor  may  have   against  its
predecessors in title.

This Assignment  is made by Assignor  and accepted by Assignee  subject to all
the  terms and  conditions  of  that  certain  Participation  Agreement  dated
December 4,  1996.  Assignor warrants that the Interest  is not subject to any
liens or  encumbrances other than  Lessor s royalty and  that lease bonus  and
delay rentals have been paid to date.

The terms and conditions of this Assignment  shall inure to the benefit of and
be  binding  upon  the parties  hereto  and  their  respective successors  and
assigns.

This  Assignment is made effective December 11,  1996, subject to the approval
by  the Minerals Management Service, United States Department of the Interior,
pursuant to 30 CFR 256.

IN WITNESS WHEREOF, this  Assignment is executed as of the  dates shown in the
respective acknowledgments  of  the  parties hereto,  but  effective  for  all
purposes as of December 11, 1996.

                                     ASSIGNOR: 

 Witnesses:                          SANTA FE ENERGY RESOURCES, INC.



                                     By:         A. T. McCarroll
                                     Title:      Division Manager, Exploration
                                                 Gulf Division

                                     ASSIGNEE:

 Witnesses:                          READING & BATES DEVELOPMENT CO.

                                     By:     Wayne K. Hillin 
                                     Title:  Secretary 


                                                                Exhibit 10.157

                      ASSIGNMENT OF RECORD TITLE INTEREST

UNITED STATES OF AMERICA
OUTER CONTINENTAL SHELF
OFFSHORE LOUISIANA
                                  WITNESSETH:

THAT, SANTA FE ENERGY RESOURCES, INC., a  Delaware corporation, the address of
which  is 1616 South Voss, Suite  1000, Houston, Texas 77057 ( Assignor ), for
valuable  consideration,  the  receipt  and sufficiency  of  which  is  hereby
acknowledged,  does  hereby grant,  convey,  assign, transfer  and  deliver to
READING & BATES DEVELOPMENT  CO., a Delaware corporation, the address of which
is  901 Threadneedle,  Houston,  Texas 77079-2902  ( Assignee ), an  undivided
fifty percent (50.00000%) record title interest (the  Interest ) in and to the
following described Oil and Gas Lease (hereinafter the  Lease ), to wit:

      Oil and Gas  Lease of  Submerged Lands under the Outer Continental
      Shelf  Lands  Act,  bearing  Serial  No.  OCS-G  16578,  effective
      September  1,  1996 covering  all of  Block  919, Ewing  Bank, OCS
      Official Protraction Diagram, NG  15-12,  containing approximately
      5760 acres, more or less.

TO  HAVE AND  TO HOLD  the Interest  in and  to the  Lease unto  Assignee, its
successors and  assigns, together with  all rights and  privileges appurtenant
thereto, subject to and in accordance with all the terms and provisions of the
Lease.

This  Assignment  is  made without  warranty  of  title,  express, implied  or
statutory,  except  as  to persons  lawfully  claiming  by,  through or  under
Assignor, but not  otherwise; however, Assignee shall  have the right of  full
substitution and  subrogation, to the extent assignable, in and to any and all
rights  and  actions  in   warranty  which  Assignor  may  have   against  its
predecessors in title.

This Assignment  is made by Assignor  and accepted by Assignee  subject to all
the  terms and  conditions  of  that  certain  Participation  Agreement  dated
December 4,  1996.  Assignor warrants that the Interest  is not subject to any
liens or  encumbrances other than  Lessor s royalty and  that lease bonus  and
delay rentals have been paid to date.

The terms and conditions of this Assignment  shall inure to the benefit of and
be  binding  upon  the parties  hereto  and  their  respective successors  and
assigns.

This Assignment is made effective December 11, 1996 subject to the approval by
the Minerals  Management Service,  United States  Department of  the Interior,
pursuant to 30 CFR 256.

IN WITNESS WHEREOF, this  Assignment is executed as of the  dates shown in the
respective acknowledgments  of  the  parties hereto,  but  effective  for  all
purposes as of December 11, 1996. 


                                    ASSIGNOR:

Witnesses:                          SANTA FE ENERGY RESOURCES, INC.



                                    By:         A. T. McCarroll
                                    Title:      Division  Manager, Exploration
- -
                                                Gulf Division
                                    ASSIGNEE:

Witnesses:                          READING & BATES DEVELOPMENT CO.

                                    By:     Wayne K. Hillin
                                    Title:  Secretary 


                                                                Exhibit 10.158

                      ASSIGNMENT OF RECORD TITLE INTEREST

UNITED STATES OF AMERICA
OUTER CONTINENTAL SHELF
OFFSHORE LOUISIANA
                                  WITNESSETH:

THAT, SANTA FE ENERGY RESOURCES, INC., a  Delaware corporation, the address of
which  is 1616 South Voss, Suite  1000, Houston, Texas 77057 ( Assignor ), for
valuable  consideration,  the  receipt  and sufficiency  of  which  is  hereby
acknowledged,  does  hereby grant,  convey,  assign, transfer  and  deliver to
READING & BATES DEVELOPMENT  CO., a Delaware corporation, the address of which
is  901 Threadneedle,  Houston,  Texas 77079-2902  ( Assignee ), an  undivided
fifty percent (50.00000%) record title interest (the  Interest ) in and to the
following described Oil and Gas Lease (hereinafter the  Lease ), to wit:

      Oil and Gas  Lease of  Submerged Lands under the Outer Continental
      Shelf  Lands  Act,  bearing  Serial  No.  OCS-G  16579,  effective
      September  1,  1996 covering  all of  Block  920, Ewing  Bank, OCS
      Official Protraction Diagram, NG  15-12,  containing approximately
      5760 acres, more or less.

TO  HAVE AND  TO HOLD  the Interest  in and  to the  Lease unto  Assignee, its
successors and  assigns, together with  all rights and  privileges appurtenant
thereto, subject to and in accordance with all the terms and provisions of the
Lease.

This  Assignment  is  made without  warranty  of  title,  express, implied  or
statutory,  except  as  to persons  lawfully  claiming  by,  through or  under
Assignor, but not  otherwise; however, Assignee shall  have the right of  full
substitution and  subrogation, to the extent assignable, in and to any and all
rights  and  actions  in   warranty  which  Assignor  may  have   against  its
predecessors in title.

This Assignment  is made by Assignor  and accepted by Assignee  subject to all
the  terms and  conditions  of  that  certain  Participation  Agreement  dated
December 4,  1996.  Assignor warrants that the Interest  is not subject to any
liens or  encumbrances other than  Lessor s royalty and  that lease bonus  and
delay rentals have been paid to date.

The terms and conditions of this Assignment  shall inure to the benefit of and
be  binding  upon  the parties  hereto  and  their  respective successors  and
assigns.

This Assignment is made effective December 11, 1996 subject to the approval by
the Minerals  Management Service,  United States  Department of  the Interior,
pursuant to 30 CFR 256.

IN WITNESS WHEREOF, this  Assignment is executed as of the  dates shown in the
respective acknowledgments  of  the  parties hereto,  but  effective  for  all
purposes as of December 11, 1996.

                                    ASSIGNOR: 





Witnesses:                          SANTA FE ENERGY RESOURCES, INC.



                                    By:         A. T. McCarroll
                                    Title:      Division Manager, Exploration
                                                Gulf Division

                                    ASSIGNEE:

Witnesses:                          READING & BATES DEVELOPMENT CO.

                                    By:     Wayne K. Hillin 
                                    Title:  Secretary


                                                                Exhibit 10.159


                      ASSIGNMENT OF RECORD TITLE INTEREST

UNITED STATES OF AMERICA
OUTER CONTINENTAL SHELF
OFFSHORE LOUISIANA
                                  WITNESSETH:

THAT, SANTA FE ENERGY RESOURCES, INC., a Delaware corporation,  the address of
which is 1616  South Voss, Suite 1000, Houston,  Texas 77057 ( Assignor ), for
valuable  consideration,  the  receipt  and  sufficiency of  which  is  hereby
acknowledged,  does hereby  grant,  convey, assign,  transfer  and deliver  to
READING & BATES DEVELOPMENT CO., a  Delaware corporation, the address of which
is  901 Threadneedle,  Houston,  Texas 77079-2902  ( Assignee ), an  undivided
fifty percent (50.00000%) record title interest (the  Interest ) in and to the
following described Oil and Gas Lease (hereinafter the  Lease ), to wit:

      Oil and Gas Lease of   Submerged Lands under the Outer Continental
      Shelf  Lands  Act,  bearing  Serial  No.  OCS-G  17251,  effective
      November  1,  1996 covering  all of  Block  335, East  Breaks, OCS
      Official  Protraction Diagram,  NG 15-1,  containing approximately
      5760 acres, more or less.

TO  HAVE AND  TO HOLD  the Interest  in and  to the  Lease unto  Assignee, its
successors  and assigns, together  with all rights  and privileges appurtenant
thereto, subject to and in accordance with all the terms and provisions of the
Lease.

This  Assignment  is  made without  warranty  of  title,  express, implied  or
statutory,  except  as  to persons  lawfully  claiming  by,  through or  under
Assignor, but  not otherwise; however,  Assignee shall have the  right of full
substitution and subrogation, to the extent assignable, in and to  any and all
rights  and  actions  in   warranty  which  Assignor  may  have   against  its
predecessors in title.

This Assignment  is made by Assignor  and accepted by Assignee  subject to all
the  terms  and  conditions  of that  certain  Participation  Agreement  dated
December  4, 1996.  Assignor warrants that  the Interest is not subject to any
liens or  encumbrances other  than Lessor s royalty  and that lease  bonus and
delay rentals have been paid to date.

The terms and conditions of this Assignment shall inure to the  benefit of and
be  binding  upon  the parties  hereto  and  their  respective successors  and
assigns.

This Assignment is  made effective December 11, 1996, subject  to the approval
by  the Minerals Management Service, United States Department of the Interior,
pursuant to 30 CFR 256.

IN WITNESS  WHEREOF, this Assignment is executed as of  the dates shown in the
respective  acknowledgments  of the  parties  hereto,  but effective  for  all
purposes as of December 11, 1996. 
                                    ASSIGNOR:

Witnesses:                          SANTA FE ENERGY RESOURCES, INC.
                        

                                    By:    A. T. McCarroll
                                    Title: Division Manager, Exploration -
                                                Gulf Division

                                    ASSIGNEE:

Witnesses:                          READING & BATES DEVELOPMENT CO.

                                    By:     Wayne K. Hillin
                                    Title:  Secretary


                                                                Exhibit 10.160

                      ASSIGNMENT OF RECORD TITLE INTEREST

UNITED STATES OF AMERICA
OUTER CONTINENTAL SHELF
OFFSHORE LOUISIANA
                                  WITNESSETH:

THAT,  SANTA FE ENERGY RESOURCES, INC., a Delaware corporation, the address of
which is 1616 South Voss, Suite  1000, Houston, Texas 77057 ( Assignor ),  for
valuable  consideration,  the  receipt  and  sufficiency  of which  is  hereby
acknowledged,  does  hereby grant,  convey,  assign, transfer  and  deliver to
READING & BATES DEVELOPMENT CO., a Delaware corporation, the  address of which
is  901 Threadneedle,  Houston,  Texas 77079-2902  ( Assignee ), an  undivided
fifty percent (50.00000%) record title interest (the  Interest ) in and to the
following described Oil and Gas Lease (hereinafter the  Lease ), to wit:

      Oil and Gas Lease of  Submerged Lands  under the Outer Continental
      Shelf Lands Act, bearing Serial No. OCS-G 17355, effective January
      1,  1997 covering  all of  Block 372,  Garden Banks,  OCS Official
      Protraction Diagram, NG 15-2, containing approximately 5760 acres,
      more or less.

TO  HAVE AND  TO HOLD  the Interest  in and  to the  Lease unto  Assignee, its
successors and  assigns, together with  all rights and  privileges appurtenant
thereto, subject to and in accordance with all the terms and provisions of the
Lease.

This  Assignment  is  made without  warranty  of  title,  express, implied  or
statutory,  except  as  to persons  lawfully  claiming  by,  through or  under
Assignor,  but not otherwise; however,  Assignee shall have  the right of full
substitution and  subrogation, to the extent assignable, in and to any and all
rights  and  actions  in   warranty  which  Assignor  may  have   against  its
predecessors in title.

This Assignment  is made by Assignor  and accepted by Assignee  subject to all
the  terms  and  conditions  of that  certain  Participation  Agreement  dated
December 4, 1996.  Assignor warrants that  the Interest is not subject to  any
liens or  encumbrances other than  Lessor s royalty  and that lease  bonus and
delay rentals have been paid to date. 

The terms  and conditions of this Assignment shall inure to the benefit of and
be  binding  upon  the parties  hereto  and  their  respective successors  and
assigns.

This Assignment is made effective January  2, 1997, subject to the approval by
the Minerals  Management Service,  United States  Department of  the Interior,
pursuant to 30 CFR 256.

IN WITNESS WHEREOF, this Assignment is  executed as of the dates shown in  the
respective acknowledgments  of  the  parties hereto,  but  effective  for  all
purposes as of January 2, 1997.

                                    ASSIGNOR:

Witnesses:                          SANTA FE ENERGY RESOURCES, INC.


                                    By:      A. T. McCarroll
                                    Title:   Division  Manager, Exploration
                                                Gulf Division

                                    ASSIGNEE:

Witnesses:                          READING & BATES DEVELOPMENT CO.

                                    By:     Wayne K. Hillin
                                    Title:  Secretary 


                                                               EXHIBIT 10.161

                            JOINT VENTURE AGREEMENT
                   OUTER CONTINENTAL SHELF - GULF OF MEXICO

      This Agreement,  made and  entered into  as this  16th day  of December,
1996, ("the Effective Date"), by  Shell Deepwater Development Inc. (SDDI)  and
SOI Finance Inc. (SOIFI), hereinafter collectively referred  to as "Shell" and
Reading & Bates Development Co. (RB), hereinafter referred to singularly as  a
"Party" and jointly as "Parties."

      WHEREAS, the Parties are interested in exploring, appraising, developing
and  operating  offshore  continental  shelf  leases  for  the  production  of
hydrocarbons and the transportation therefrom by pipeline or otherwise.

      NOW, THEREFORE,  in  consideration of  the premises  and  of the  mutual
promises exchanged and contained within  this Agreement, the Parties agree  to
explore,  appraise, develop and  operate the Contract  Leases lying within the
Contract Area of the Gulf of Mexico for the production of Hydrocarbons and the
transportation  therefrom by pipeline or otherwise  according to the following
provisions:

                             ARTICLE 1 - EXHIBITS

All  references in  this Agreement to  Exhibits without  further qualification
shall mean the  Exhibits listed below and attached to this Agreement.  Each of
the Exhibits listed below are made part of  this Agreement and shall be deemed
incorporated into the body of this Agreement by this reference, as if the full
text of each Exhibit were contained within the text of this Agreement.  If any
provision  of any Exhibit is inconsistent  with any provision contained in the
body of this  Agreement, the provisions  in the body  of this Agreement  shall
prevail.

      1.1.1 Exhibit A   Contract Area
      1.1.2 Exhibit A-1 East Boomvang Leases
      1.1.3 Exhibit A-2 North Boomvang Leases
      1.1.3 Exhibit A-3 East Bequia, Leases
      1.1.4 Exhibit B-1 Assignment Form - Record Title
      1.1.5 Exhibit B-2 Assignment Form - Overriding Royalty Interest
      1.1.6 Exhibit C   Geophysical Data License Agreement dated September 16,
            1996
      1.1.7 Exhibit D   Form  of  Joint  Operating  Agreement  (including it's
            Exhibits)

                            ARTICLE 2 - DEFINITIONS

As used  in the Agreement, the  following terms defined in  this Article shall
have the meanings here ascribed to them.

2.0   Affiliate(s).   Any company  that is  owned or  controlled  by or  under
      common control with a Party, with ownership or control existing of fifty
      percent (50%)  or more of  the stock  of such company  that carries  the
      right  to  vote  for  directors  is  owned  or controlled,  directly  or
      indirectly, by the particular Party; or any parent company that owns  or
      controls,  directly or indirectly,  fifty percent  (50%) or more  of the
      stock having the right to vote for directors of such Party.

2.1   Agreement.  Shall mean this  Joint Venture Agreement, together with  its
      attached Exhibits.

2.2   Appraisal Well.  An Appraisal  Well shall be defined as a  Well targeted
      to  be drilled  into  a  Producible Reservoir  with  a  primary goal  of
      determining  the  economic viability  of  developing  and producing  the
      Producible Reservoir.

2.3   Commitment  Well.  The  Appraisal Well required  under Subsection 7.1 of
      this  Agreement  and  the  optional exploration  wells  contemplated  in
      Subsections 7.2 and 7.3 of this Agreement.

2.4   Confidential  Information.    Shall  mean  all  proprietary  geophysical
      (including  the  Geophysical  Survey  Data),   geological,  geochemical,
      reservoir, drilling, production, cost  or engineering and technical data
      owned  or developed  by  the Parties  or any  logs or  other information
      pertaining to  the progress, tests or results of any Well drilled or any
      other operation  conducted relating  to operations conducted  within the
      Contract Area.  The term shall also include (but my not be limited to):

            Certain commercial, contractual or financial information,

            Analyses, compilations,  maps,  models, interpretations  or  other
            documents that  reflect or incorporate Confidential Information;

            Both originals and copies of  geological and geophysical data, and
            well  logs directly related  to the  Contract Area; and  all other
            subsurface,  seismic and  related  data acquired  or derived  from
            operations conducted pursuant to this Agreement.

2.5   Contract Area.   The area outlined  on the attached plat,  Exhibit A, in
      the East Breaks Area, Gulf of Mexico.

2.6   Contract  Prospect and or Leases.   The eight  (8) blocks falling within
      the Contract Area shown on  Exhibit A and identified by lease  number on
      Exhibits A-1, A-2, and A-3 and consisting of the following leases:

      2.6 a East Boomvang Prospect and/or Leases.  The  area comprised of East
            Breaks  Blocks 688  and 732  which fall  within the  East Boomvang
            portion of  the  Contract Area  outline  shown  on Exhibit  A  and
            identified by lease numbers on Exhibit A-1.

      2.6 b North  Boomvang  Prospect  and/or  Leases.    The  area  comprised
            of  East  Breaks  Blocks 642, 643 and  644  which  fall within the
            North  Boomvang portion  of the  Contract Area  outline  shown  on
            Exhibit A and identified by lease numbers on Exhibit A-2.

      2.6 c East Bequia  Prospect  and  or  Leases.    The  area  comprised of
            East  Breaks  Blocks  645,  646  and  690  which  fall  within the
            East  Bequia  portion  of  the  Contract  Area  outline  shown  on
            Exhibit A and identified by lease numbers on Exhibit A-3.

2.7   Development Operations  Shall mean all operations conducted pursuant  to
      a Development Plan.

2.8   Development Plan.  As defined in the Joint Operating Agreement.

2.9   Development Well.  As defined in the Joint Operating Agreement.

2.10  Exhibit.  As defined in Article 1 - Exhibits

2.11  Geophysical Data License Agreement.  The non-exclusive License Agreement
      dated September 16,  1996 to govern use of, rights  to, and ownership of
      the  Geophysical Survey  Data and which  was executed by  the parties on
      that  date.   If  there is  any  conflict between  the  Boomvang License
      Agreement and this Agreement, this Agreement shall control.

2.12  Geophysical Survey Data.  That portion of SDDI's proprietary 3-D Seismic
      Survey  covering the following  nine (9) block  area: East Breaks Blocks
      642, 643, 644, 645, 686, 687, 688, 689 and 732.

2.13  Joint Operating  Agreement.  The  Joint Operating Agreement  which shall
      govern  the  joint  exploration,  development  and  operations  of  each
      Prospect  in  the  Contract  Area  individually for  the  production  of
      hydrocarbons  therefrom.  A separate Joint  Operating Agreement shall be
      executed for each Prospect prior to conducting  joint operations on that
      Prospect.  The form of Joint Operating Agreement to be  used is attached
      to this  Agreement as Exhibit  D. If there  is any conflict  between the
      Joint Operating  Agreement  for any  Prospect and  this Agreement,  this
      Agreement shall control.

2.14  Keeper Well.   A well that  will not be initially  plugged and abandoned
      but is intended to be utilized and  designed for appraisal, development,
      or production purposes.

2.15  Operator. RB  is  hereby designated  as Operator  of  the East  Boomvang
      Leases as identified in Exhibit A.

2.16  Party or  Parties   (to  this  Agreement):  Shall mean  Shell  Deepwater
      Development Inc, SOI Finance Inc. and/or Reading & Bates Development Co.
      singularly or collectively,  as the case  may be,  with respect to  this
      Agreement.

2.17  Primary Objective  Interval.    For  any  Commitment  Well  the  Primary
      Objective  Interval shall mean the shallower of  the total footage to be
      drilled (as measured  in true vertical depth) or the  penetration by the
      drill  bit sufficient to  test the base of  the stratigraphic of seismic
      bright spot  events.  Said depth and  seismic event(s) for each prospect
      are set forth below:

PROSPECT                DEPTH (TVD) SEISMIC EVENT(S)

East Boomvang           10,000'           Bright Spots 30, 40 and 45 #
North Boomvang          10,000'           Bright Spots 30 and 40 #
East Bequia             10,500'           Bright Spot 25 *

      #     As found in Shell's EB 688 #1 Well
      *     As found in Mobil's EB 689 #1 Well

2.18  RB's Earned Interest.   That portion of Shell's leasehold  and rights to
      production to  be delivered to RB  in accordance with Article  9 of this
      Agreement.

2.19  Shallow  Hazards Data.   Data  derived from  the shallow  hazards survey
      referenced in 
      Article 4.

2.20  Sidetrack.  The directional control and intentional  deviation of a Well
      so as  to change the bottom  hole location whether  or not it is  to the
      original Primary Objective Interval.

2.21  Shell's Retained Interest.   That portion of the leasehold and rights to
      production to be retained by Shell  in accordance with Articles 9 and 10
      of this Agreement.

2.22  Standard Log Evaluation Program.   For the Commitment Wells required  in
      Subsection 7.1  of this Agreement,  the Standard Log  Evaluation Program
      shall be defined as:

      -     MWD
      -     Phaser Induction
      -     Long-Spaced Sonic
      -     LDT-CNL (Litho Density Tool - Compensated Neutron Log)
      -     FMS (Formation Microscanner)
      -     SHDT - Dual Dipmeter (High Resolution)
      -     RFT - Repeat Formation Test 
      -     SWC - Sidewall Core *
      -     VSP - Vertical Seismic Profile

      *     Only in those zones of interest as indicated by hydrocarbon shows.

2.23  Substitute Well.   For any Commitment  Well, a Substitute Well  shall be
      defined as a Well drilled to the same Primary Objective Interval (unless
      mutually  agreed otherwise)  as planned  for in the  original Commitment
      Well for which it is a substitute.

2.24  Well.  For any Commitment Well, a Well shall be defined as the drilling,
      Standard  Log Evaluation  Program and  plugging  and abandonment  of the
      original straight hole; or the drilling, Standard Log Evaluation Program
      and  the temporary  plugging and  abandonment of  the original  straight
      hole.

2.25  Working Interest.  Shall mean the leasehold or operating rights interest
      of each  Party in and to each Lease within a Contract Area (expressed as
      a percentage).

                          ARTICLE 3 - CONFIDENTIALITY

Pursuant to this Agreement, the Parties  will from time to time make available
to each other certain Confidential Information.   The Confidential Information
will be made  available for the  purpose of evaluating  the Contract Area  and
Contract  Leases,  planning operations,  determining  whether  to develop  the
Leases  and whether  to participate  in Development  Operations.   The Parties
shall use the Confidential Information  solely for the aforesaid purposes  and
shall maintain the confidential nature of such information.

3.1   Each  Party agrees to deliver  such Confidential Information relating to
      the Contract Area as may be required by the other Party pursuant to this
      Agreement upon request or as otherwise provided and mutually agreed.

3.2   The  Parties  agree  to  keep,   save  and  hold  as  confidential   all
      Confidential  Information disclosed hereunder  relating to  the Contract
      Area.

3.3   Except as otherwise provided  herein, the Confidential Information shall
      not  be disclosed  or revealed  by any  Party, its  employees, officers,
      Affiliates, consultants or agents  and representatives to any individual
      or entity  not a party hereto without prior written consent of the other
      Party.  Any incidental disclosure  of a business or technical  nature to
      which any Party's  employees or  agents are exposed  by virtue to  their
      exposure  to  the Confidential  Information  shall  be subject  to  this
      Agreement.

3.4   All Confidential Information made available  to any party shall be  done
      on an "as is" basis without any warranties either express or implied, as
      to the accuracy,  validity or utility of such information.   In no event
      shall  any Party be  liable for  any incidental, consequential  or other
      damages arising out of or resulting from  the Confidential.  Information
      conveyed or  otherwise made available  through this Agreement.   Parties
      receiving Confidential  Information shall  conduct at their  own expense
      and rely solely  on their own  independent investigation and  evaluation
      of,  and appraisal  and judgement  with respect  to, the  geological and
      geophysical   characteristics  of  the   Contract  Area,  the  estimated
      hydrocarbon  reserves recoverable  therefrom,  and  expense  assumptions
      applicable thereto.

3.5   Any  Party  may make  Confidential  Information  available to  geologic,
      and/or  geophysic  consultants,  reputable  engineering  firms,  service
      firms, gas transmission  and crude oil purchasing  companies for reserve
      and other technical evaluations  and to reputable financial institutions
      for study  prior  to commitment  of  funds and  shall notify  the  other
      Parties of such disclosure.  Any third party permitted such access shall
      first  agree in writing to neither disclose  such data to others nor use
      such data except for the purpose for which it is disclosed.

3.6   Disclosure of  the Confidential Information shall be  restricted to only
      those employees of  the Parties or of other entities  as provided for in
      this Article 3 who have a need to know such information to carry out the
      purposes of this Agreement.

3.7   Each party  shall  have  the  right  to  make  Confidential  Information
      available  to  bona fide  prospective  purchasers or  assignees  of such
      party's Working Interest in any Leases which is the subject of such data
      provided that such Party has  given the other Parties at least  ten (10)
      days prior written notice identifying the prospective purchaser, stating
      when and where such data or information will be disclosed and describing
      the data  or  information to  be disclosed.    Disclosure shall  include
      copies  or tracings supplied to a  bona fide prospective purchaser.  Any
      third party  permitted  such access  shall  first  agree in  writing  to
      neither disclose  such data to others  nor use such data  except for the
      purpose  for which it is disclosed.   Any Party may provide Confidential
      Information  to  its  Affiliates,  provided its  Affiliates  accept  and
      maintain such  information subject to the  confidentiality provisions of
      this Agreement.

3.8   No Party shall  distribute any information or  photographs regarding the
      Contract Area to the press or other media without the prior agreement of
      the participating Parties in  the operation which is the subject  of the
      release.  When all parties have reviewed such material,  and issuance of
      the  material  has  received  approval  of  the  participating  Parties,
      Operator shall  have the principal  responsibility for its  issuance and
      each other party may issue  such approved material without  restriction.
      The only  exception to the foregoing  shall be that  in the event  of an
      emergency involving  extensive property damage, operations failure, loss
      of human  life,  or other  clear emergency,  Operator  is authorized  to
      furnish such minimum, strictly factual information as shall be necessary
      to satisfy the  legitimate public interest on the part  of the media and
      duly  constituted authorities if  time does not  permit the obtaining of
      prior approval of the information so furnished.

3.9   It is  mutually  agreed that  in  order to  comply  with bylaws  of  the
      Offshore Oil Scouts Association, the Operator may furnish the  following
      Well information at weekly Offshore Oil Scout meetings:

      3.9.1 Well Location:

      Proposed surface location
      Surveyed surface location with X & Y
      Proposed bottom hole location
      KB and water depth
      OCS number and Well number
      Actual bottom  hole  location (must  be  reported  within two  weeks  of
      reaching Total Depth of the Well)

      3.9.2 Well operations

      Rig move in date
      Spud date
      Weekly drilling depth
      Casing depths, cement, EMW's
      Mud weight, sidewall cores, cores, RT's (only that they were taken)
      Logs (only the depths and time which they were run) 
      Date Total Depth is reached
      Date rig is released

      3.9.3 Well Completion Information

      Any Media release or public  filing of Well completion information  will
      be furnished at weekly Scout meetings

3.10  Provisions for the use and  disclosure of Confidential Information shall
      not apply  to information that was in the public knowledge or literature
      at the time  of disclosure or which  the Parties agree was  already in a
      parties possession  at  the time  of  disclosure without  obligation  of
      confidentiality.

3.11  Provisions  for use  and  disclosure of  Confidential Information  shall
      cease to  apply  if the  Confidential Information  becomes  part of  the
      public knowledge  without fault of  either Party,  or is disclosed  to a
      Party without obligation of confidentiality by a  third party having the
      right to do so.

3.12  For the purposes of these provisions, specific disclosure made hereunder
      shall not be deemed to be within the exceptions at Article 3.10 and 3.11
      above  merely because they  are embraced  by general disclosures  in the
      public  knowledge or  literature or  in the  Party's possession  and any
      combination of  features disclosed hereunder shall not  be deemed within
      the  above exceptions  merely  because individual  features  are in  the
      public knowledge or literature or in the Party's possession.

3.13  This Agreement shall not be construed  to grant any Party any license or
      other right to use the Confidential Information  except for the purposes
      of this Agreement.

3.14  In  no event shall  the obligation to  keep the Confidential Information
      confidential  exceed two  (2) years  from the  termination date  of this
      Agreement  or  the  Joint  Operating  Agreement.    The  confidentiality
      provisions  of  this  Agreement  shall  be  binding  on  either  Party's
      successors and assigns.

3.15  The Parties  represent and warrant that  they have the right  to provide
      the Confidential  Information which  they disclose  under the terms  and
      conditions of this Agreement without  violating the legal rights of,  or
      its contractual obligations to, any third party.

3.16  Restrictions  on  Confidentiality  shall   not  apply  to  any  required
      disclosures to or required by governmental agencies or stock exchanges.

                       ARTICLE 4 - SHALLOW HAZARDS DATA

SDDI  has conducted  a shallow  hazards survey  in  the Gulf  of Mexico.   The
shallow hazards survey covers East Breaks protraction blocks 688 and 732.

4.1   Strictly as an accommodation, SDDI agrees to provide raw and interpreted
      Shallow Hazards Data and reports to RB.

4.2   THE SHALLOW HAZARDS  DATA IS PROVIDED  ON AN "AS  IS" BASIS WITHOUT  ANY
      WARRANTIES  EITHER EXPRESS OR  IMPLIED, AS TO  THE ACCURACY, VALIDITY OR
      UTILITY OF SUCH INFORMATION.

4.3   RB agrees  to return all Shallow  Hazards Data to SDDI  within 180 days.
      In  the event RB does not return  all such Shallow Hazards Data to SDDI,
      SDDI shall  have the election to  either 1) require RB  to reacquire the
      missing  Shallow  Hazards  Data, or  2)  require  RB,  to  pay SDDI  the
      replacement cost of the Shallow Hazards Data. 

4.4   The 180 day period referred to in Subsection 4.3, above, may be extended
      by mutual agreement in writing.

                      ARTICLE 5 - GEOPHYSICAL SURVEY DATA

SDDI has  acquired a proprietary  3-D seismic  survey in the  Gulf of  Mexico.
SDDI has  granted certain rights to  RB covering nine (9)  blocks comprised of
East Breaks Blocks 642, 643, 644, 645, 686, 687, 688, 689 and 732, hereinafter
referred to as "Geophysical  Survey Data" under  the terms of the  Geophysical
Data License  Agreement executed  by both  Parties on September  16, 1996  and
attached as Exhibit C.

5.1   Said Geophysical Data License Agreement shall govern the use, rights to,
      and ownership of the Geophysical Survey Data.

5.2   The  Geophysical  Data  License  Agreement prohibits  RB  from  selling,
      trading  or   showing  the  Geophysical  Survey  Data  and  governs  the
      confidentiality of the data.

5.3   Said  Geophysical Data License  Agreement provides for  SDDI to have the
      right to sell the Geophysical Survey Data.

5.4   Upon  the execution  of  the Geophysical  Data  License Agreement,  SDDI
      delivered to  RB one copy of  the Geophysical Survey Data  and RB hereby
      confirms receipt of said Geophysical Survey Data.

                             ARTICLE 6 - OPERATOR

RB  is hereby  designated as  Operator for  all phases,  including Development
Operations and  production within the  Contract Area pursuant to  the terms of
this Agreement.

6.1   RB has  been designated as Lease  Operator of the two  (2) East Boomvang
      Prospect Leases.

6.2   Within fifteen (I 5) days  of receiving a written request from  RB, SDDI
      shall  deliver to  RB four  (4) executed  Designation of  Operator forms
      designating RB as Operator for any requested  lease(s) in North Boomvang
      or East Bequia Prospects.

6.3   In the event RB reduces any Working Interest earned under this Agreement
      through  sales or trades  to a level  which is less  than SDDI's Working
      Interest, then SDDI shall have the option to become Operator.

                ARTICLE 7 - DRILLING PROGRAM - COMMITMENT WELLS

7.1   By executing this Agreement, RB commits to drill and evaluate (using the
      Standard  Log Evaluation program)  one (1) Appraisal  Well and Sidetrack
      (if  Sidetrack is warranted)  to the  Primary Objective Interval  at its
      sole  risk and  liability, and  to pay  100% of  all costs  (permitting,
      drilling,  evaluation,  testing  and  plugging/abandonment  or temporary
      abandonment of the Well) on the East Boomvang Prospect.

      7.1.1 RB shall use its best efforts as a prudent Operator to conduct the
            Standard LogEvaluation  Program.  Drill stem  tests and production
            tests are  not deemed to  be part  of the Standard  Log Evaluation
            Program.   A decision  to test  the East Boomvang  Appraisal Well,
            expand  the Standard Log Evaluation  Program or sidetrack the well
            shall be entirely RB's and the costs borne by RB.

      7.1.2 It is anticipated that said Appraisal  Well will be a Keeper Well.
            In  the   event  that  the  Well  is  temporarily  abandoned,  any
            additional expenditures thereafter decided upon by RB and SDDI (to
            complete  the  Well  for  appraisal,  development   or  production
            purposes, to  plug/abandon, etc) shall  be shared under  the Joint
            Operating Agreement if applicable.

      7.1.3 The  parties agree  to meet  to select  a mutually  agreeable well
            location and well plan for said Appraisal Well.  In the event SDDI
            and RB fail to reach mutual agreement on a well location or on any
            item described in the well plan,   the final decision for the well
            location and/or well plan shall rest with RB.

7.2   Subsequent to a notification  of intent to Develop  under Article 8,  RB
      has  the right but not the obligation to  drill and evaluate at its sole
      cost,  risk  and  liability,  one  (1)  Exploration  Well on  the  North
      Boorrivang Prospect to the Primary Objective Interval.

      7.2.1 RB  agrees to pay  100% of  all Costs (hazard  survey, permitting,
            drilling,  evaluating, testing,  Standard Log  Evaluation Program,
            temporary  abandonment  of  the Well  or  plugging/abandonment  if
            required).

      7.2.2 RB. shall  use its best efforts  as a prudent  Operator to conduct
            the  Standard  Log Evaluation  Program.    Drill  stem  tests  and
            production tests  are not deemed  to be  part of the  Standard Log
            Evaluation  Prograrn.    A  decision to  test  the  North Boomvang
            Exploration Well,  expand the Standard Log  Evaluation Program, or
            sidetrack the well shall  be entirely RB's and the  costs borne by
            RB.

      7.2.3 In  the  event  that  the  Well  is  temporarily   abandoned,  any
            additional expenditures thereafter decided upon by SDDI and RB (to
            complete  the  Well  for  appraisal,  development  or   production
            purposes, to plug/abandon,  etc) shall be shared  according to the
            Joint Operating Agreement if applicable.

7.3   Subsequent  to a notification  of intent to develop  under Article 8, RB
      has the right but  not the obligation to drill and evaluate  at its sole
      cost,  risk and liability, one  (1) Exploration Well  on the East Bequia
      Prospect to the Primary Objective Interval.

      7.3.1 RB  agrees to pay  100% of  all costs (hazard  survey, permitting,
            drilling,  testing, evaluating,  Standard Log  Evaluation Program,
            temporary  abandonment of  the  Well  or  plugging/abandonment  if
            required).

      7.3.2 RB shall use its best efforts as a prudent Operator to conduct the
            Standard Log Evaluation Program.  Drill  stem tests and production
            tests are not  deemed to be  part of the  Standard Log  Evaluation
            Program.   A decision  to test  the East Bequia  Exploration Well,
            expand the Standard  Log Evaluation Program, or sidetrack the well
            shall be entirely RB's and the costs borne by RB.
 
      7.3.3 In  the  event  that  the  Well  is  temporarily  abandoned,   any
            additional expenditures thereafter decided upon by SDDI and RB (to
            complete   the  Well  for  appraisal,  development  or  production
            purposes, to plug/abandon, etc)  shall be shared according  to the
            Joint Operating Agreement if applicable.

7.4   The Commitment Well required under Subsection 7.1  of this Agreement and
      the optional Commitment Wells contemplated under Subsections 7.2 and 7.3
      shall  be spudded  by RB  within six  (6) months  of the selection  of a
      mutually agreeable drillsite unless spudding  of the Well is delayed  by
      rig  unavailability, rig  upgrades, permitting  or other  reasons beyond
      RB's reasonable  control.  In  such event,  SDDI and  RB shall  mutually
      agree upon a practicable drilling schedule.

                         ARTICLE 8 - OPTION TO DEVELOP

Within thirty (30)  days after the cessation of operations associated with the
Appraisal  Well  or  Sidetrack  (if  Sidetrack  is warranted)  required  under
Subsection 7.1 RB shall elect to either:

(i)         Notify SDDI in writing of its intention  to develop (i.e., propose
            a development plan to the MMS  and conduct Development Operations)
            the East Boomvang Prospect or

(ii)        Terminate  this Agreement, upon  which RB shall  have no rights to
            the East Boomvang Leases.

(iii)       In  the  event  RB  needs additional time  to make its election to
            develop,  RB  may  request an extension.  Approval of an extension
            by SDDI shall not be unreasonably withheld.

                         ARTICLE 9 - WORKING INTEREST

9.1   In the event  RB notifies SDDI  of its intent  to develop East  Boomvang
      Prospect  under Article  8, RB  shall have  earned an  assignment of  an
      undivided 50% Working Interest in the East Boomvang leases.

      9.1.1 Within ninety (90) days of SDDI's receipt  of RB's notification of
            its  intent to  Develop the  East Boomvang  Prospect, Shell  shall
            prepare and deliver  to RB assignments  conveying RB's 50%  earned
            leasehold interest in the East Boomvang Leases.

      9.1.2 In the  event RB notifies SDDI  of its intent to  develop the East
            Boomvang Prospect under Article 8,  SDDI may elect to remain  as a
            50% Working  Interest  partner, such  election to  be made  within
            sixty (60) days  of receipt of RB's notification of  its intent to
            develop East Boomvang.  In the event SDDI needs additional time to
            make its election, SDDI may request an extension.  Approval  of an
            extension  by RB shall not be unreasonably withheld.  In the event
            of  such  election, all  Operations  subsequent  to the  temporary
            abandonment of  the Appraisal  Well required under  Subsection 7.1
            will be conducted under a Joint Operating Agreement in the form of
            Exhibit  D and  the  Parties shall  execute  said Joint  Operating
            Agreement  within  thirty  (30)  days of  such  election  by SDDI.
            Section  24.2.3 (b)  of such Joint  Operating Agreement  shall not
            apply  unless  or  until  the  Fabrication  AFE  for  the  Initial
            Production System has  been approved by an  Election under Section
            12.8 of such Joint Operating Agreement.

      9.1.3 SDDI shall  bear  and  pay one  hundred  percent (100  %)  of  the
            rentals, delay rentals  or minimum royalties for the East Boomvang
            Leases until such time as RB has earned a Working Interest in said
            leases and  Shell  has conveyed  RB's Working  Interest  to RB  in
            accordance  with  Subsection  9.1.1  above  or  Subsection   10.1.
            Thereafter, RB  shall pay its proportionate share of such rentals,
            delay rentals or minimum royalties for the East Boomvang Leases.

      9.1.4 In the  event an additional well  is spudded on the  East Boomvang
            Leases prior  to the Election by  SDDI to remain as  a 50% Working
            Interest partner, the  Parties agree that the additional well will
            be drilled  as  a  fight hole  and  no information  on  the  well,
            including  but not limited  to, logs, surveys  will be provided to
            SDDI until after SDDI's Article 9.1.2 election is made.

      9.1.5 In regard  to wells  proposed under  a Joint  Operating Agreement,
            prior to RB utilizing a drilling  rig owned by RB's affiliate, the
            parties will  establish a mutually  agreeable day rate  based upon
            the average commercial rates  for a similar specification drilling
            rig prevailing in the immediate area.

      9.1.6 In  order to  facilitate early  production, the  parties recognize
            that  orders for certain  long lead time  components may be placed
            prior to SDDI's election to participate as  a 50% Working Interest
            partner under Subsection 9.1.2 or formal approval of a Fabrication
            AFE under Subsection 12.8 of the Joint Operating Agreement.

            Within thirty (30) days of RB's election  to develop under Article
            8 (i), RB may deliver the following documents to SDDI:

      a.    A preliminary development plan  substantially in the form required
            by Subsection 12.5 of the Joint Operating Agreement.

      b.    A  list of  identified  long lead  time  components with  delivery
            times.

      c.    An Interim  Fabrication  AFE for  the  identified long  lead  time
            components.

      Any  election by SDDI  to remain as  a 50% Working  Interest owner under
      Subsection  9.1.2 after receipt  of such  documents will include  a firm
      commitment to pay SDDI's  share of the Interim Fabrication  AFE for long
      lead time components.

9.2   In  the event  RB drills  and  evaluates a  Well on  the North  Boomvang
      Prospect pursuant to Article 7.2, RB shall have earned  an assignment of
      an undivided 65% Working Interest in the North Boomvang Leases.
 
      9.2.1 Within thirty (30) days after the release from location of the rig
            that drilled the Well on the North  Boomvang Prospect, Shell shall
            prepare and  deliver to RB  assignments conveying RB's  65% earned
            leasehold interest in the North Boomvang Leases.

      9.2.2 All  future  Operations  on  the  North  Boomvang  Leases will  be
            conducted under a Joint Operating Agreement in the form of Exhibit
            D and  the Parties  shall execute  said Joint Operating  Agreement
            concurrent with  conveyance of RB's  Earned Interest in  the North
            Boomvang Leases.

      9.2.3 SDDI  shall  bear  and pay  one  hundred  percent (100  %)  of the
            rentals, delay rentals or minimum royalties for the North Boomvang
            Leases until such time as RB has earned a Working Interest in said
            leases and  Shell  has conveyed  RB's Working  Interest  to RB  in
            accordance  with Subsection 9.2.1 above.  Thereafter, RB shall pay
            its proportionate share  of such rentals, delay rentals or minimum
            royalties for the North Boomvang Leases.

9.3   In the event  RB drills and evaluates a Well on the East Bequia Prospect
      pursuant to  Article  7.3, RB  shall  have earned  an  assignment of  an
      undivided 65% Working Interest in the East Bequia Leases.

      9.3.1 Within thirty  (3 0) days after  the release from location  of the
            rig  that drilled  the Well  on the  East Bequia,  Prospect, Shell
            shall prepare  and deliver  to RB  assignments conveying RB's  65%
            earned leasehold interest in the East Bequia Leases.

      9.3.2 All future Operations on the East Bequia  Leases will be conducted
            under a Joint Operating Agreement in the form of Exhibit D and the
            Parties shall  execute said  Joint Operating Agreement  concurrent
            with conveyance of RB's Earned Interest in the East Bequia Leases.

      9.3.3 SDDI  shall  bear and  pay  one hundred  percent  (100  %) of  the
            rentals, delay rentals  or minimum royalties  for the East  Bequia
            Leases until such time as RB has earned a Working Interest in said
            leases and  Shell  has conveyed  RB's Working  Interest  to RB  in
            accordance with Subsection 9.3.1 above.  Thereafter, RB shall  pay
            its proportionate  share of such rentals, delay rentals or minimum
            royalties for the East Bequia Leases.

                             ARTICLE 10 - FARMOUT

In the  event RB  notifies SDDI  of its  intent to develop  the East  Boomvang
Prospect under Article8, and  SDDI does not elect  to remain as a  50% Working
Interest partner in East Boomvang  underArticle 9.1.2, SDDI agrees to  farmout
its Working Interest in East Boomvang to RB under thefollowing terms:

10.1  Shell, within ninety  (90) days of  SDDI's receipt  of RB's election  to
      develop  the East  Boomvang Prospect,  shall prepare  and deliver  to RB
      assignments conveying 100% of Shell's rights, title and interest in East
      Boomvang Leases.

10.2  SDDI shall  retain  a three  percent  of  eight-eighths (3%  of  8/8ths)
      overriding royalty interest in the East Boonivang Leases.

10.3  After cumulative production of 200  BCF from the East Boonivang  Leases,
      SDDI may elect as follows:

      10.3.1      convert the  three percent  of eight-eighths (3%  of 8/8ths)
                  overriding  royalty  interest  in   Subsection  10.2  to  an
                  undivided   twenty  five  percent  (25%)  Working  Interest.
                  Within  thirty  (30)  days  after such  election,  RB  shall
                  prepare  and deliver  to  SDDI assignments  conveying a  25%
                  leasehold interest in the East Boonivang Leases.

      10.3.2      escalate the  three percent of eight-eighths  (3% of 8/8ths)
                  overriding  royalty interest  in Subsection  10.2 to  a five
                  percent of  eight-eighths (5% of  8/8ths) overriding royalty
                  interest.

10.4  If  pursuant to  Subsection 10.3.1,  SDDI elected  to convert  the three
      percent of eight-eighths (3% of  8/8ths) overriding royalty interest  in
      Subsection 10.3.1  to an  undivided  twenty five  percent (25%)  Working
      Interest,  then after  cumulative production  of 350  BCF from  the East
      Boomvang  Leases,  the  undivided  twenty  five  percent  (25%)  Working
      Interest  shall  increase  to an  undivided  thirty  five percent  (35%)
      Working  Interest.   Within. thirty  (30) days  after such  increase, RB
      shall  prepare and  deliver to  SDDI assignments  conveying to  SDDI the
      increased leasehold interest in the East Boonivang Leases .

10.5  This volume based Working Interest conversion shall  only be prospective
      (i.e., in the event the payout  account is negative.  SDD1 shall not  be
      required to pay its share of previous  unrecouped expenditures, if any).
      Therefore, SDDI  as a new Working Interest owner, shall only be entitled
      to  its  proportionate  share  of revenue  and  be  responsible  for its
      proportionate  share of  expenses  subsequent to  the effective  date of
      SDDI's Working Interest conversion as set out in Section 10.3.

10.6  The  overriding royalty interest  set out in  Subsection 10.2 and 10.3.2
      shall be calculated and paid in the  same manner and at the same time as
      royalties to the Minerals Management Service.

                    ARTICLE 11 - SUSPENSION AND TERMINATION 

11.1  In the event  of, and  upon SDDI's  receipt of  notice from  RB that  RB
      elects not to develop the  East Boomvang Prospect under Article 8,  this
      Agreement shall ipso facto terminate.

11.2  In the event RB elects to  develop the East Boonivang Prospect  pursuant
      to  Article 8,  and SDDI  does  not elect  to  remain as  a 50%  Working
      Interest partner in East Boomvang  under Article 9.1.2, RB will  proceed
      with   Development  Operations;  however   it  may  suspend  Development
      Operations at its sole election.

11.3  In  the event RB elects to Develop  the East Boonivang Prospect pursuant
      to Article 8, but suspends Development Operations pursuant to Subsection
      11.2  for a period of 180 days  or more, this Agreement shall terminate.
      Should RB  need additional time  to commence Development  Operations, RB
      may request an extension of the 180 day period.  It is intended that the
      approval for an extension shall not be unreasonably withheld by SDDI.

11.4  In the  event of termination pursuant  to Subsections 1  1. I or 1  1. 3
      above, the Parties agree as follows:

      11.4.1      This  Agreement shall terminate and RB shall not have earned
                  any interest in SDDI's leasehold  and RB rights to earn  any
                  interests in  SDDI's leasehold shall terminate;  however, RB
                  shall  continue  to  be  bound by  the  confidentiality  and
                  indemnity provisions in force between the Parties.

      11.4.2      Within thirty (30) days of  RB's election to terminate under
                  this  Article  11,  RB shall  prepare  and  deliver to  SDDI
                  assignments  conveying  the  relevant Worldng  Interests  in
                  SDDI's leasehold  that SDDI may have  previously assigned to
                  RB under this Agreement.

      11.4.3      Within fifteen (15) days of RB's election to terminate under
                  this  Article  11,  RB  shall prepare  and  deliver  to SDDI
                  Designation of Operator  forms designating SDDI as  Operator
                  for  all leases  to which  SDDI previously designated  RB as
                  Operator.

      11.4.4      The Geophysical  Data License Agreement  shall terminate and
                  RB  shall return all  data and all  documents generated from
                  such data to SDDI which was previously furnished to RB under
                  the Geophysical Data License Agreement.

      11.4.5      SDDI,  at its  sole election, may  take over  any previously
                  drilled but not plugged  and abandoned well(s) and equipment
                  under this Agreement.   In the event SDDI does  not elect to
                  take  over  such well(s)  and equipment,  RB shall  plug and
                  abandon any well(s) prior to termination of this Agreement.

                     ARTICLE 12 - AREA OF MUTUAL INTEREST

In the  event all  or  a portion  of the  North  Boomvang and/or  East  Bequia
Prospects expire, RB and SDDI shall establish a 50/50 area of mutual interest.

12.1  If, other than in conjunction  with RB, SDDI or another party  acting on
      behalf of SDDI, acquires a lease covering North Boomvang Prospect and/or
      East Bequia  Prospect at  the 1998  Western Gulf  of Mexico  Lease Sale,
      hereinafter sometimes  referred to  as "AMI Obligation",  then RB  shall
      have  the right,  but  not  the  obligation, to  acquire  from  SDDI  an
      undivided 50.00% of the interest acquired by SDDI.  RB shall be notified
      in  writing by  SDDI within  fifteen (15)  days of such  acquisition and
      shall have thirty (30) days after receipt of such notice  to advise SDDI
      whether or  not RB elects  to acquire its  50.00% share of  the interest
      acquired by  SDD1.   If  RB  elects to  exercise  its right  under  this
      Agreement, the  consideration owed by RB  to SDDI shall equal  50.00% of
      the consideration paid by SDDI for such interest.

12.2  If,  other than in conjunction with SDD1,  RB or another party acting on
      behalf of RB, acquires a  lease covering North Boomvang Prospect  and/or
      East Bequia  Prospect at the 1998 Western Gulf of Mexico Lease Sale (AMI
      Obligation), then SDDI shall have the right,  but not the obligation, to
      acquire from  RB an undivided  50.00% of  the interest  acquired by  RB.
      SDDI shall be notified in writing by RB within fifteen (15) days of such
      acquisition and shall have thirty (30) days after receipt of such notice
      to advise RB whether  or not SDDI elects to acquire  its 50.00% share of
      the interest acquired by RB.  If SDDI elects to exercise its right under
      this Agreement, the consideration owed by SDDI to  RB shall equal 50.00%
      of the consideration paid by RB for such interest.

12.3  All  future  operations  would  be  conducted  under  a  Joint Operating
      Agreement in  the form of Exhibit  D and the Parties  shall execute said
      Joint  Operating Agreement within  thirty (30)  days of any  election to
      acquire under the AMI Obligation.

                         ARTICLE 13 - DEVELOPMENT PLAN

In  the  event SDDI  elects  to retain  a  50% working  interest  in the  East
Boonivang Leases as provided in  Subsection 9.1.2, the Development Plan  shall
be  proposed in  accordance with  the East  Boomvang Prospect  Joint Operating
Agreement.

In the event SDDI does not exercise its election to retain a working  interest
in the East  Boonivang Leases, as provided  in Article 10,  RB agrees to  hold
periodic technical meetings with SDDI  to allow SDDI to review and  have input
into  RB's  plans for  development  of  the  East Boomvang  Leases,  it  being
understood that the final decisions with  respect to same shall be reserved to
RB.

                      ARTICLE 14 - CO-DEVELOPMENT BETWEEN
                 EAST BOOMVANG, NORTH BOOMVANG AND EAST BEQUIA

14.1  The Parties  will  attempt  to  co-develop successful  wells  from  East
      Boomvang,  North Boonivang and  East Bequia together  to the extent such
      co-development  is feasible and practical.   In such co-development, the
      Parties agree to utilize gas throughput  as a means to allocate the cost
      of  shared or  common  transportation  pipelines,  gathering  facilities
      and/or  subsea production  system,  hereinafter referred  to as  "Common
      Development Facilities and Pipelines".

14.2  In  the event RB  desires to co-develop  East Boonivang, North Boonivang
      and/or  East  Bequia, SDDI  and  RB may  not  have a  consistent Working
      Interest throughout all  three prospects.  Therefore, the  Parties agree
      that  in the  event (i)  SDDI elects  not to  retain its  entire Working
      Interest in East Boonivang under Article  10 hereof, and (ii) that North
      Boonivang  and/or East  Bequia share  Common Development  Facilities and
      Pipelines  with the  East  Boomvang  development,  SDDI shall  have  the
      following election:

      14.2.1      Farmout its  Working Interest in North  Boomvang and/or East
                  Bequia to RB under mutually agreeable terms.

      14.2.2      Pay  its Working  Interest Share  of well  and  subsea costs
                  directly attributable  to North Boomvang  and/or East Bequia
                  plus pay a mutually agreeable  processing/transportation fee
                  to RB which  will be intended to reimburse RB  over time for
                  its  cost  of  all  the Common  Development  Facilities  and
                  Pipelines (based upon mutually agreeable reserve evaluation)
                  which are attributable (utilizing gas throughput)  to SDDI's
                  allocated  proportionate  share   of  the  costs  (including
                  financing costs).

                 ARTICLE 15 - WELL AND PRODUCTION INFORMATION

15.1  SDDI shall have the right to take its production in kind.   SDDI's share
      of any gas production is committed to a gas contract with Coral Energy.

15.2  Irrespective of SDDI's elections as set out above, except as provided in
      Article 9.1.4,  SDDI shall receive  all well and  production information
      (including data  from down hole  pressure gauges)  at the same  time and
      manner as a Working Interest owner.

                           ARTICLE 16 - UNITIZATION

Where  applicable, it is the intent  of the parties to  secure MMS approval to
unitize  prior  to commencement  of  Development  Operations.   To  facilitate
unitization, the  Parties plan to seek  MMS involvement as early  as three (3)
months following cessation of operations  associated with the drilling of  any
Commitment Well.

                        ARTICLE 17 - SURFACE FACILITIES

In the event SDD1 does not exercise its election to retain  a working interest
in the East  Boomvang Leases as provided in Subsection 9.1.2 and RB installs a
facility for surface processing of  production from the East Boomvang  Leases,
RB  agrees to  allow SDDI  to have  access to  such facility  in the  order of
priority follows:

      a.    production from the East Boomvang Leases;
      b.    joint RB/SDDI production from non-East Boomvang leases;
      c.    RB or SDDI non-East Boomvang leases; and
      d.    Third party production;

and  RB agrees that  SDDI will be charged  a lower fee  than other third party
production, subject to applicable law.

In the  event  SDDI owns  a  working interest,  priority  access to  any  such
facility  shall  be subject  to  the terms  of any  Joint  Operating Agreement
executed between RB and SDD1.

                         ARTICLE 18 - PLATFORM ACCESS

RB has been in contact with various owners of platforms which could serve as a
processing facility, therefore the contingency set forth in paragraph 12(b) of
that certain Letter Agreement dated July 12, 1996 between Shell  Offshore Inc.
and  RB, regarding RB's  successful negotiation  of platform access  is hereby
removed.

                             ARTICLE 19 - NOTICES

19.1  Any notice  provided for or permitted  to be given shall  be in writing,
      properly addressed  to the  Party to  whom the notice  is directed  with
      postage  and  charges  prepaid,  and,  delivered by  the  United  States
      certified  mail/return receipt  requested or  by  commercial mail/return
      receipt   requested  or   by   personal  delivery/receipt   or  by   fax
      transmission/confirmation of receipt requested.

19.2  A notice  delivered by mail or in person shall be deemed properly served
      when actually  received by  the Party  to whom  the notice  is directed.
      Actual receipt of  the notice shall be established by  the date on which
      the receipt accompanying the notice  was signed by the receiving  Party.
      A  notice delivered by  fax shall be  deemed properly served twenty-four
      (24) hours after receipt is confirmed (excluding Saturdays, Sundays, and
      Federal Holidays).

19.3  The address  of each Party set  forth below shall be  its proper address
      until such time as such Party gives all other Parties notice of change:

      Reading & Bates Development Co.    Shell Deepwater Development Inc.
      Attention: President               SOI Finance Inc.
      901 Threadneedle, Suite 200        Attention: Manager Contracts
      Houston, Tx 77079                  Street: 701 Poydras Street (71039)
      Tel (713) 496-5000                 Post Office Box 60833
      Fax (713) 496-0186                 New Orleans, LA 70160
                                         Tel  (594) 588-6701
                                         Fax  (504) 588-6699

                     ARTICLE 20 - ASSIGNMENTS

20.1  All  assignments shall  be  prepared utilizing  the  form of  assignment
      attached hereto as Exhibits B-1 and B-2.

                      ARTICLE 21 - SUCCESSORS AND ASSIGNS

This Agreement shall  be binding upon and inure to the  benefit of the parties
and their  respective  heirs, successors  and  assigns  and shall  continue  a
covenant running  with each Contract  Lease within  the Contract  Area.   Each
Party  shall incorporate  in any  assignment  of an  interest in  the Contract
Leases a provision that such assignment is subject to this Agreement.

                          ARTICLE 22 - APPLICABLE LAW

THIS AGREEMENT  SHALL BE INTERPRETED  ACCORDING TO  THE LAWS OF  THE STATE  OF
LOUISIANA.

                     ARTICLE 23 - HEADINGS FOR CONVENIENCE

The headings and table of contents  used in this Agreement are for convenience
only and shall be disregarded in construing this Agreement.

                          ARTICLE 24 - MISCELLANEOUS


Reference  herein  to  the  plural  of  a  noun  or  pronoun  shall,  whenever
appropriate, include  the singular  and vice  versa.   This  Agreement is  not
intended to benefit or  create any rights  in any entity not  a Party to  this
Agreement.

         ARTICLE 25 - TERM OF AGREEMENT AND ADMINISTRATIVE PROVISIONS

Notwithstanding  the provisions of  Article 1  1 herein, this  Agreement shall
remain in effect until:

      (a)   with respect to the East Boomvang Leases, until the earlier of the
            cessation  of production  from such  leases or  the  execution and
            delivery of the Joint Operating  Agreement by the Parties covering
            such Leases;

      (b)   with  respect to the  North Boomvang  Leases and the  East Bequia,
            Leases,  until earlier  of the  expiration of  the leases,  or the
            execution and delivery of  the Joint Operating Agreement  or Joint
            Operating Agreements  by the Parties covering  such North Boomvang
            Leases and/or East Bequia Leases.

Termination of this Agreement shall not   relieve any Party from any liability
accrued or incurred prior to such termination.

                         ARTICLE 26 - ENTIRE AGREEMENT

This  Agreement, including  attached  Exhibits contains  every obligation  and
understanding  between the  parties  relating to  the Contract  Area, Contract
Leases,   SDD1  property,  Confidential  Information,  Shallow  Hazards  Data,
Geophysical  Survey  Data,   and  any  exploration,  appraisal,   development,
operation, production or joint operations  (as defined herein) and performance
hereunder and supersedes all previous agreements between  the parties relating
to these.  This Agreement can be modified only in writing properly executed by
duly authorized  representatives of the Parties.   Failure of either  party to
insist on strict performance by the other of any provision hereunder shall not
be  deemed or  construed  to in  any  way  affect the  right  to require  such
performance.

                      ARTICLE 27 - COUNTERPART EXECUTION

This Agreement  may  be executed  by  signing the  original or  a  counterpart
thereof.   If  this Agreement  is executed  in counterparts,  all counterparts
taken  together shall have the  same effect as  if the Parties  had signed the
same instrument.

IN  WITNESS WHEREOF,  the  undersigned parties  have  executed this  Agreement
effectiveDecember 16, 1996.

                                  SHELL DEEPWATER DEVELOPMENT INC.

WITNESS:                      By: ________________________

______________________
______________________        Its: _______________________ 



                                  SOI FINANCE INC.

WITNESS:                      By: _________________________

______________________
______________________        Its: ___________________



                                   READING & BATES DEVELOPMENT CO.

WITNESS:                      By: _________________________

______________________
______________________        Its: _________________________


                                 EXHIBIT "A-1"
                           ATTACHED TO SDDI/SOIFI/RB
                            JOINT VENTURE AGREEMENT
                            DATED DECEMBER 16, 1996
                             EAST BOOMVANG LEASES 

Lease             Block       Effective   Expiration      Gross 
Number            Number      Date        Date            Acres
OCS-G 09191       688         11/01/87    10/31/97        5760
OCS-G 09194       732         10/01/87    09/30/97        5760

                   ORRI Ownership         Lease
Royalty           Company     ORRI        Ownership

1/8 USA           SOIFI       25% *       100%
1/8 USA           SOIFI       25% *       100%

*SOIFI 25% ORRI burdens SDDI's Working Interest only.

                                 EXHIBIT "A-2"
                           ATTACHED TO SDDI/SOIFI/RB
                            JOINT VENTURE AGREEMENT
                            DATED DECEMBER 16, 1996
                             NORTH BOOMVANG LEASES

Lease           Block       Effective   Expiration        Gross 
Number          Number      Date        Date              Acres
OCS-G 09183     642         10/01/87    09/30/97          5760
OCS-G 09184     643         10/01/87    09/30/97          5760
OCS-G 09185     644         10/01/87    09/30/97          5760

                   ORRI Ownership         Lease
Royalty           Company     ORRI        Ownership
1/8 USA           SOIFI       25% *       100%
1/8 USA           SOIFI       25% *       100%
1/8 USA           SOIFI       25% *       100%

    *SOIFI 25% ORRI burdens SDDI's Working Interest only.

                                 EXHIBIT "A-3"
                           ATTACHED TO SDDI/SOIFI/RB
                            JOINT VENTURE AGREEMENT
                            DATED DECEMBER 16, 1996
                              EAST BEQUIA LEASES

Lease           Block       Effective   Expiration        Gross
Number          Number      Date        Date              Acres
OCS-G 09186     645         10/01/87    09/30/97          5760
OCS-G 09187     646         10/01/87    09/30/97          5760
OCS-G 10319     690         10/01/88    09/30/98          5760

                   ORRI Ownership         Lease
Royalty           Company     ORRI        Ownership
1/8 USA           SOIFI       25% *       100%
1/8 USA           SOIFI       25% *       100%
1/8 USA           SOIFI       25% *       100%

      *SOIFI 25% ORRI burdens SDDI's Working Interest only.

                                 EXHIBIT "B-1"
                           ATTACHED TO SDDI/SOIFI/RB
                            JOINT VENTURE AGREEMENT
                            DATED DECEMBER 16,1996

                                ASSIGNMENT FORM
                  PARTIAL ASSIGNMENT OF RECORD TITLE INTEREST
                       IN FEDERAL OCS OIL AND GAS LEASE 

KNOW ALL MEN BY THESE PRESENTS:

      That  SHELL DEEPWATER  DEVELOPMENT INC.,  a Delaware  corporation, whose
address  is P. 0.  Box 60833,  New Orleans, Louisiana  70160-1933 (hereinafter
called  'Assignor"),  for and  in  consideration  of the  sum  of Ten  Dollars
($10.00)  and  other  good  and   valuable  consideration,  the  receipt   and
sufficiency of which is hereby acknowledged, does  hereby assign, transfer and
convey  unto READING &  BATES DEVELOPMENT  CO., a Delaware  corporation, whose
address    is  901  Threadneedle, Houston,  Texas  77079  (hereinafter  called
"Assignee"),  an  undivided  ___________   percent  (______  %) of  Assignor's
percent (_____%)  right, title and interest in and to that certain Oil and Gas
Lease covering  submerged  land in  the  Gulf  of Mexico  (hereinafter  called
"Lease"), more particularly described as follows:

      OCS-G ____________ Oil and Gas Lease effective _________________, by and
      between the United States of America  as Lessor and Shell Offshore  Inc.
      as  Lessee, covering all of Block  _____,  East Breaks,  as shown on OCS
      Official Protraction Diagram NG 15-1, containing 5,760 acres.

      As a result  of this Assignment, record title interest  in said Lease is
      now held as follows:

            SHELL DEEPWATER DEVELOPMENT INC. _____________ %
            READING & BATES DEVELOPMENT CO. ______________ %

      This  Assignment and  Assignee's  rights hereunder  are  subject to  the
provisions of that certain Joint Venture Agreement dated December 16, 1996, by
and between SHELL  DEEPWATER DEVELOPMENT INC., SOI FINANCE INC.  and READING &
BATES DEVELOPMENT CO.

      Assignee assumes,  and agrees to be bound by, all of the obligations and
liabilities  of Assignor as  to the interest  herein assigned, accruing  on or
after the effective date hereof.   The terms and provisions of this Assignment
shall inure  to the  benefit of, and  be binding  upon the parties  hereto and
their respective successors and assigns.  Assignor agrees to indemnify, defend
and hold Assignee harmless from  and against any and all liabilities  accruing
prior to  the effective date  of such  Joint Venture Agreement  and the  Joint
Operating Agreement referred to in such Joint Venture Agreement.

      TO  HAVE  AND  TO  HOLD  said  interest  herein  unto  Reading  &  Bates
Development Co., its successors and assigns,  forever, subject to the terms of
said Lease.

      This Assignment is made without  warranty of title, express or  implied,
and without any recourse against Assignor in the event of any failure of title
to said  Leases or  any  part thereof,  except  that Assignor  warrants  title
against all  claims by, through or  under Assignor but not  otherwise and that
the  title  transferred  hereunder  is  free   and  clear  of  all  liens  and
encumbrances  (other than the  royalty provisions contained  in such lease and
the overriding  royalty  interest being  transferred by  SOI  Finance Inc.  to
Assignee concurrently with this Assignment).

      IN WITNESS WHEREOF, this Assignment is executed by Assignor and Assignee
on the dates set  forth below, but shall be  effective for all purposes  as of
December 16, 1996 at 7:00 a.m.

WITNESSES:                    ASSIGNOR:

                              SHELL DEEPWATER DEVELOPMENT INC.

____________________          By:_______________________
                                   R. W. Robison, Jr.
____________________               Attorney-in-Fact

                              Date:______________________ 


WITNESSES:                    ASSIGNEE:

                              READING & BATES DEVELOPNENT CO.

____________________          By:________________________

____________________          Title:_____________________

                              Date:______________________


                                 EXHIBIT "B-2"
                           ATTACHED TO SDDI/SOIFI/RB
                            JOINT VENTURE AGREEMENT
                            DATED DECEMBER 16,1996


                   ASSIGNMENT OF OVERRIDING ROYALTY INTEREST
                       IN FEDERAL OCS OIL AND GAS LEASE


KNOW ALL MEN BY THESE PRESENTS:

      That  SOI FINANCE INC.,  a Delaware corporation, whose  address is P. 0.
Box 61933, New Orleans,  Louisiana 70161-1933 (hereinafter called "Assignor"),
for and in consideration of the sum of Ten Dollars ($10.00) and other good and
valuable  consideration,  the  receipt  and sufficiency  of  which  is  hereby
acknowledged,  does hereby assign,  transfer and  convey unto READING  & BATES
DEVELOPMENT CO.,  a Delaware corporation,  whose address is  901 Threadneedle,
Houston,    Texas     77079     (hereinafter    called     "Assignee"),     an
undivided______________ percent(______%) overriding royalty interest in and to
that certain Oil and  Gas Lease covering submerged land in  the Gulf of Mexico
(hereinafter called "Lease"), more particularly described as follows:

      OCS-G_____ , Oil and Gas  Lease effective covering all of Block  ______,
      East Breaks,  as  shown on  OCS Official  Protraction  Diagram NG  15-1,
      containing 5,760 acres.

      As a result of this Assignment the overriding royalty interests conveyed
hereby shall be extinguished by confusion and merge into the working interests
out of which  each was  carved, such that  the record  title interest in  said
Lease remains as follows:

      SHELL DEEPWATER DEVELOPMENT INC.   ______%
      READING & BATES DEVELOPMENT CO.    ______%

      This  Assignment  and Assignee's  rights  hereunder are  subject  to the
provisions of that certain Joint Venture Agreement  dated December 16,1996, by
and between SHELL DEEPWATER  DEVELOPMENT INC., SOI FINANCE INC.  and READING &
BATES DEVELOPMENT CO.

      Assignee assumes, and agrees to be  bound by, all of the obligations and
liabilities of Assignor  as to the  interest herein  assigned, accruing on  or
after the effective date hereof.  The terms and provisions  of this Assignment
shall inure to  the benefit  of, and be  binding upon the  parties hereto  and
their respective successors and assigns.  Assignor agrees to indemnify, defend
and  hold Assignee harmless from and against  any and all liabilities accruing
prior to the effective date of  the Joint Venture Agreement dated December 16,
1996  by and between  SHELL DEEPWATER DEVELOPMENT  INC., SOI  FINANCE INC. and
READING & BATES DEVELOPMENT CO.  Under no circumstances shall  this Assignment
be interpreted or deemed to include the assignment of any rights held or which
may  be  held  by  Assignor for  mispayments,  underpayments  or  other claims
regarding the overriding royalty interest conveyed hereby, which accrue  prior
to the effective date hereof.

      TO  HAVE AND TO HOLD said  interest herein unto Assignee, its successors 
and assigns, forever, subject to the terms of said Lease.

      Assignor hereby warrants title to  the property it is conveying  against
the claims and demands of  all persons lawfully claiming the same  by, through
or under such Assignor, but not otherwise.

      IN WITNESS WHEREOF, this Assignment is executed by Assignor and Assignee
on  the dates set forth below,  but shall be effective for  all purposes as of
December 16, 1996 at 7:01 am.

WITNESSES:                          ASSIGNOR:

                                    SOI FINANCE INC.

______________________              By:__________________________
                                          R. W. Robison, Jr.
______________________                    Attorney-in-Fact

                                    Date:_________________________


WITNESSES:                          ASSIGNEE:

                                    READING & BATES DEVELOPMENT CO.

_____________________               By:__________________________

_____________________               Title:_________________________

                                    Date:_________________________


                                  EXHIBIT "C"

                           Attached to SDDI/SOIFI/RB
                         Joint Venture Agreement dated
                               December 16, 1996

                      GEOPHYSICAL DATA LICENSE AGREEMENT


Article I.
                              Contracting Parties
      THIS AGREEMENT is entered  into in New Orleans, Louisiana this  16th day
of September 1996  by and between Shell Offshore Inc.  ("SOI") and Reading and
Bates Development Co. (the "Licensee").

Article II.

                        General Scope of the Agreement

            WITNESSETH:
            WHEREAS,  SOI has acquired possession  of results of the specified
proprietary geophysical  surveys  (the "Survey")  in  the  Gulf of  Mexico  as
Detailed in Attachment One and is willing to grant certain rights with respect
to  such Data  (the "Data") to  Reading and  Bates Development  Co. under such
terms and conditions hereinafter set forth; and

            WHEREAS, the Licensee desires to obtain the non-exclusive right to
use  the Data,  as specified  herein  and as  detailed by  Supplement to  this
Agreement, and adopted by reference  as if incorporated herein, on such  terms
and conditions as herein set forth;

            IT IS FURTHER UNDERSTOOD AND  AGREED that nothing herein shall  be
construed to  grant any Licensee any  ownership interest in (1)  the Data, (2)
any copy of the Data, or (3) any copyright to the Data. 

            NOW  THEREFORE,  in  consideration  of the  mutual  covenants  and
agreements herein contained, the parties agree as follows:


Article III.

                          Provisions of the Agreement

            1.    Non-Exclusive  License.    In consideration  of  the  mutual
covenants and  agreements referenced in this Agreement, SOI offers to grant to
Licensee a non-exclusive license to use  the Data as specified in Article III.
12.

            2.    Confidentiality.    Licensee   acknowledges  that  the  Data
constitute valuable and highly confidential information that  is not generally
available and is  proprietary to SOI.  Except as expressly otherwise permitted
hereunder, Licensee agrees to keep the Data strictly confidential, and to take
appropriate steps to  ensure that its  employees and  agents keep it  strictly
confidential,  and  to  make  no  use  thereof  except  as permitted  by  this
Agreement.  Failure of Licensee to maintain the Data licensed herein  strictly
confidential shall result in the termination of this license and forfeiture of
any and all Data licensed hereunder  and any Supplement or copies of  any such
Data or Supplements.

            3.    Control  of  Data;  Related  Parties.   Except  as  provided
herein,  Licensee shall  not  sell, convey,  deliver,  trade, exchange,  lend,
disclose, show or otherwise share  the Data, or structure maps,  stratigraphic
interpretations  or  any  other  interpretations based  on  the  Data,  or any
reprocessed or redisplayed versions of the  Data, to or with any party without
the  express  prior  written  approval  of  SOI,  except under  the  following
conditions:

            Licensee  may indicate its  possession of the  Data to visitors of
            Licensee and only  under the following  conditions.  Licensee  may
            show limited profiles through the Data set on electronic media and
            may refer to the data  owner as Shell Offshore Inc.   Licensee may
            not  reveal  the geographic  location represented  by the  Data or
            provide  details that  identify the  geographic location,  such as
            tying well locations.

            Licensee is  encouraged to and may  demonstrate technology applied
            to the  Data by Licensee, by showing both SOI versions of the Data
            delivered to the Licensee and modified Data produced by Licensee's
            own processes.   Licensee may  not reveal location  represented by
            the Data or provide details that identify  location, such as tying
            well  locations.    Licensee  may show  volume  renderings,  event
            oriented data, or  time slice data  on electronic media such  as a
            workstation  screen,  at  Licensee's  premises   only.    However,
            Licensee  may not  produce hardcopy  prints of  volume renderings,
            event oriented data, or time slice data  without the prior written
            permission of SOI.  Licensee may not show volume renderings, event
            oriented data, or time slice data at any other  venue, without the
            prior specific written permission of SOI.  Licensee must offer SOI
            the same opportunity to view  Licensee modified data as any  other
            viewer.  Licensee shall  take such security as may be necessary to
            protect  the Data  licensed herein  from access  from unauthorized
            persons through  electronic media  such as Internet.   Failure  to
            secure  the Data from such  unauthorized access shall constitute a
            breach  of this  Agreement  resulting in  forfeiture  of all  data
            licensed and such other penalties as authorized by law.

            Licensee may publish and is  encouraged to publish details of  the
            technology  applied to  the Data  by Licensee,  by using  both SOI 
            versions of the Data delivered  to the Licensee and modified  Data
            produced by  Licensee's own processes.   Licensee  may not  reveal
            location  represented by the Data or provide details that identify
            location, such as tying well locations.   Licensee may not publish
            volume renderings, event oriented data, or time slice data without
            the prior  written permission of SOI.   Licensee must offer  at no
            expense to SOI reprints of published materials containing Data  or
            modified Data obtained hereunder.

      Any  Company or Organization  owning, directly or  indirectly, au of the
equity interest in the Licensee and wholly-owned  subsidiaries of the Licensee
shall  have the  same rights to  the Data  as has  the Licensee  provided such
company, subsidiary or affiliate agrees to abide in  writing by the provisions
of  this  Agreement  and  any  Supplements.     The  Licensee  shall  maintain
appropriate controls over the dissemination of Data by any party to whom it is
furnished  in accordance with the provisions of  this paragraph 3 and shall be
responsible for any unauthorized use or  dissemination of the Data by any such
party.  The Data or modified Data  cannot be sold without the prior consent of
SOI and only upon such terms and conditions as agreed by SOI in writing.

            4.    Valid  Regulations.    The  Data were  obtained  under  U.S.
Geological Survey or Minerals Management Service Permits,  and the use thereof
is governed by  statute and by regulations published in  the Federal Register.
By execution of this document  Licensee acknowledges notification by SOI  that
both SOI and Licensee are bound by such permits and regulations.

            5.    Transfer of Data.  This Agreement and the rights to the Data
granted hereunder and  any Supplement are intended to be for  the sole use and
benefit  of the Licensee and  may not be sold,  transferred or assigned to, or
placed under  the direct or  indirect control  of any other  person or  entity
without  the  prior  written  consent  of  SOI  whether  by  means  of merger,
consolidation, stock or asset sale, liquidation or otherwise.

            6.    Entire  Agreement.    This  Agreement,   together  with  the
Supplement hereto,  and any  invoices issued  pursuant  hereto represents  the
entire agreement between the parties in relation to the subject  matter hereof
and shall  not be  amended  or altered  without the  written  consent of  both
parties.

            7.    Representations  and   Warranties.     Notwithstanding   any
provision  in this Agreement  to the  contrary, conveyance of  a non-exclusive
license of the Data shall be without warranty, express, statutory, or implied.
Licensee specifically assumes all cost,  risk, and expense, despite any  fault
or negligence of SOI as to any use made of, or decisions based upon, the Data,
and  agrees that  SOI shall  have  no liability  to  Licensee as  a result  of
Licensee's use of the Data.

            8.    Independent Evaluation.  Licensee acknowledges  that SOI has
not  made any statements or  representations concerning the quality, condition
or accuracy of the Data  or the present or future value to be derived from the
Data.

            9.    Remedies.   With  respect  to  any  claim  against  SOI  the
remedies of the Licensee  hereunder shall be limited to  a return of the  Data
and no direct, indirect, punitive or consequential damages shall be available.
This Agreement  shall be construed  under the laws  of the State  of Louisiana
with venue in New Orleans,  Louisiana.  The parties hereby further  agree that
any dispute  arising out of this  Agreement shall be resolved  pursuant to the
Federal Arbitration Act which is referenced herein and adopted as if copied in
extenso herein,  and agree to binding  arbitration of any such  disputes.  The
parties further hereby adopt the Rules of the American Arbitration Association
to govern such proceedings. 

            10.   Term.  This Agreement shall  be effective from the date  set
forth above and  shall continue in effect until terminated  by either party on
10 days  written notice to  the other.   However, any  provisions relating  to
confidentiality, restrictions  on  the  use and  remedies  shall  survive  any
termination of this Agreement or any Supplement.

            11.   Counterparts.  This Agreement may be executed in two or more
counterparts, all of which shall be  considered one and the same agreement and
all shall become effective when  two or more counterparts have been  signed by
each of  the parties and delivered  to the other parties,  it being understood
that all parties need not sign the same counterpart.

            12.   Description of Data.  The data are  from SOI's East Boomvang
3D Survey  and cover East Breaks  protraction area blocks 642,  643, 644, 645,
686, 687, 688, 689, and 732.  The seismic  deliverable shall be in SEGY format
after bandpass,  gain  and integration.    The  interpretation file  shall  be
included with the seismic deliverable.

      IN WITNESS WHEREOF, the parties hereto have  executed this Agreement the
day and year first above written.

                                          SHELL OFFSHORE INC.

__________________________

__________________________    By:_________________________________
                                           M. R. Kuzio
                                 Chief Geophysicist Shelf Division,
                                        Shell Offshore Inc.

                              READING & BATES DEVELOPMENT CO.
__________________________

__________________________    By:_______________________________
                                    Name:   
                                    Title:


                       FORM OF JOINT OPERATING AGREEMENT
                               TABLE OF CONTENTS


ARTICLE                CONTENTS                               PAGE

1.                    Contract Application                      1
2.                    Definitions                               1
3.                    Exhibits                                  7
4.                    Selection of Operator                     7
5.                    Rights and Duties of Operator             10
6.                    Expenditures and Annual Operating Plan    12
7.                    Confidentiality of Data                   18
8.                    Voting, Elections & Notices               21
9.                    Geophysical Operations                    25
10.                   Exploratory Operations                    26
11.                   Appraisal Operations                      31
12.                   Development Plan                          38
13.                   Development Operations                    45
14.                   Facilities and Gathering Systems          51
15.                   Disposition of Hydrocarbon Production     52
16.                   Non-consent Operations                    53
17.                   Withdrawal from Agreement                 62
18.                   Abandonment and Salvage                   64
19.                   Rentals, Royalties and Minimum Royalties  65 
20.                   Taxes                                     66
21.                   Insurance and Bonds                       67
22.                   Liability, Claims, Lawsuits and
                        AlternateDisputeResolution              68
23.                   Contributions                             69
24.                   Assignments and Preferential Right to
                        Purchase                                71
25.                   Force Majeure                             74
26.                   Aministrative Provisions                  74


                                  EXHIBIT "D"

                    Attached to SDDI/SOIFI/RB Joint Venture
                       Agreement dated December 16, 1996

                           JOINT OPERATING AGREEMENT
                   OUTER CONTINENTAL SHELF - GULF OF MEXICO


      THIS AGREEMENT is made  effective as of the __________________________by
and between Shell Deepwater Development  Inc. and Reading & Bates  Development
Co.,  the signers  hereof, herein  referred to  collectively as  "Parties" and
individually as "Party."

      WHEREAS, the Parties are  owners of one or more OCS  oil and gas Leases,
identified in Exhibit  " A-1" (Description  of Leases) and  desire to  jointly
explore, develop and operate  these Leases lying within the  Contract Area for
the production of Hydrocarbons.

      NOW, THEREFORE,  in  consideration of  the premises  and  of the  mutual
promises exchanged and contained within  this Agreement, the Parties agree  to
jointly explore,  develop  and operate  the  Contract  Area according  to  the
following provisions:

                                   ARTICLE 1
                             CONTRACT APPLICATION

1.1   Application in General: This Agreement applies to the joint exploration,
development  and  operation  of  the  Contract  Area  for  the  production  of
Hydrocarbons  therefrom  and the  transportation  of  same  by pipeline(s)  or
otherwise from the Contract Areas.

1.2   Application to Contract Area: This Agreement shall apply to the Contract
Area as  defined in Article  2 below.   Unless otherwise provided for  in this
Agreement, all the rights and obligations in and under the Lease(s) comprising
the Contract Area,  all joint property and all Hydrocarbons  produced from the
Contract Area  shall  be owned  jointly  by  the Parties  according  to  their
respective Working Interests in the Contract Area.

                                   ARTICLE 2
                                  DEFINITIONS

As used in this Agreement (or in the Exhibits attached  hereto), the initially
capitalized terms listed below shall have the following meanings:

2.1   Additional Testing, Coring or Logging: shall mean any testing (excluding
production testing), coring  or logging which is in addition  to that approved
by virtue of any previously approved AFE.

2.2   Affiliate:  shall mean  any  corporation, limited  liability company  or
partnership  (including  a  limited  partnership)  or  other entity  owned  or
controlled  by a Party  to this  Agreement.  The  term "Affiliate" of  a Party
includes any parent corporation, partnership or other  entity that directly or
indirectly owns  or controls fifty  percent (50%) or  more of  the outstanding
stock (or other interests) having  the right to vote for directors  of a Party
to  this Agreement, and  also includes  any other corporation,  partnership or
other entity in  which the parent  corporation directly or indirectly  owns or
controls  fifty percent (50%) of the voting  stock (or other interests) in the
other corporation.

- -     Ownership  or control by a  Party is deemed to exist  if a Party to this
      Agreement directly or indirectly owns or controls fifty percent (50%) or
      more  of the outstanding  stock of the  corporation having the  right to
      vote for directors of the corporation [or fifty percent (50%) or more of
      the interests in the partnership or other entity].

- -     The stock  (or  interests in  a partnership  or other  entity) owned  or
      controlled by  a  Party shall  include all  stock  (or other  interests)
      directly  or indirectly owned  or controlled  by any  other corporation,
      partnership or  other entity  owned or  controlled by  a  Party to  this
      Agreement.

2.3   Agreement: shall mean this Joint Operating  Agreement, together with its
attached Exhibits.

2.4   Annual Operating Plan: shall mean  the operational plan and estimate  of
Costs for joint  operations in the next ensuing calendar  year as described in
Article 6.7 (Annual Operating Plan).

2.5   Appraisal  Operations:  shall mean  all  operations  conducted within  a
Contract Area  subsequent to Exploratory  Operations and proposed  pursuant to
Article  11.0   (Appraisal Operations).   The  terms Appraisal  Operations and
Appraisal Well are interchangeable throughout this Agreement.

2.6   Appraisal Well: shall mean any well proposed and drilled as an Appraisal
Operation.

2.7   Authorization for Expenditure (AFE): shall mean any written proposal  in
sufficient detail made  by a Party for the purpose  of describing an operation
being proposed  and  estimating the  costs  to be  incurred.   The  AFE,  when
executed by  a Party, evidences  that Party's Election  to participate in  the
proposed operation and grants the Operator  the authority to commit or  expend
funds, pursuant  to  this Agreement,  for  the  account of  the  Participating
Parties.  Any AFE which proposes more than one operation shall be considered a
separate AFE as to each operation  only for those operations for which Parties
are permitted separate Elections under the terms of this Agreement.

2.8   Confidential Data:  shall mean all proprietary  geophysical, geological,
geochemical,  drilling or engineering  data owned or  developed by the Parties
relating  to operations conducted  within the Contract  Area.   The term shall
also include (but may not be limited to):

- -     certain commercial, contractual or financial information;

      analyses, compilations, maps, models, interpretations or other documents
      that reflect or incorporate Confidential Information;

      both originals and copies of  geological and geophysical data, and  well
      logs; and,
      all other subsurface, seismic and related data  acquired or derived from
      operations conducted pursuant to this Agreement.

      The provisions of this Agreement with respect to Confidential Data shall
not be  applicable to "Confidential Work  Product" as that term  is defined in
Exhibit "G" (Integrated Project Team and Technology Sharing).

2.9   Contract Area: shall mean the OCS Leases described on  Exhibit "A-1", as 
to all depths.

2.10  Cost(s): shall mean the monetary amount of all expenses incurred  by the
Operator  and the  Participating Parties for  (or on  account of)  any and all
operations conducted pursuant to this Agreement.

2.11  Deepen or Deepening: shall mean any operation  to drill an existing well
(includingsidetracking a well) deeper than the stratigraphic equivalent of the
deepest formation previously encountered in such well.

2.12  Deeper Drilling: shall  mean the  drilling of a  well below the  deepest
Producible Reservoir penetrated by a Producible Well within a Contract Area.

2.13  Development Operations: shall mean  all operations conducted pursuant to
a Development Plan.

2.14  Development Phase: shall mean Development Operations associated with the
installation of a Production System within a Contract Area.

2.15  Development Plan: shall mean the plan for installing a Production System
and developing and producing Hydrocarbons from a Contract Area as described in
Article 12 (Development Plan).   The Development Plan  (as defined herein)  is
not the Development  Plan as required  by the MMS  under 30 CFR  250.34(a) nor
under the DOCD required under 30 CFR 250.34(d) (1).

2.16  Development  Well: shall mean  any well proposed  within a Contract Area
subsequent to the approval of a Development Plan for such Contract Area.

2.17  Disproportionate Spending Settlement: shall  mean tile settlement of all
or a portion of the percentage recoupment by a  Non-Participating Party paying
a disproportionate amount of Costs in the next ensuing operation  in which the
Non-Participating Party makes an Election to participate.

2.18  Election:  shall mean a decision by a  Party to either participate or to
become  a Non-Participating Party  in a proposed  operation (including the AFE
associated with  the operation).  An Election to participate is evidenced by a
Party's execution of the  AFE.  An Election not to  participate (become a Non-
Participating Party) is evidenced either by a Party's written response against
a  proposal  or such  Party's failure  to timely  execute  the AFE  within the
applicable time limit specified in this Agreement, or both.

2.19  Exploratory  Operations:  shall  mean  the first  well  drilled,  or its
substitute, in  the  Contract Area  as described  in  Article 10  (Exploratory
Operations).

2.20  Exploratory  Well:  shall  mean  any well  proposed  and  drilled  as an
Exploratory Operation.

2.21  Fabrication AFE:  shall mean the individual  AFEs collectively submitted
pursuant to an approved Development Plan for the construction and installation
of a Production System.

2.22  Facilities:  shall mean  all  production equipment  beyond the  wellhead
connections (excluding  Production Systems and Subsea  Production Systems, but
including injection  and  disposal wells)  installed for  the  benefit of  the
Contract  Area to handle  or service Hydrocarbon  production from the Contract
Area.   Facilities also include  (but are  not limited to)  the flowlines  and
gathering lines that transport the Hydrocarbons from  the wellhead but exclude
pipelines used to transport Hydrocarbons to shore.

2.23  Final  Design  AFEs:  shall   mean  the  individual  AFEs,  collectively
submitted  pursuant to an  approved Development Plan  pursuant to Article 12.5
(Content of the Development Plan). 

2.24  General Matters: shall mean any matter decided by a vote  of the Parties
in accordance  with  Article 8.2  (Voting Procedures  on  General Matters  and
Elections).   A proposal as  a General Matter may  or may not  include an AFE;
depending on  the type of  proposal.  If  the nature of the  proposal requires
that  an AFE  be submitted  with the  proposal, an  affirmative vote  for such
proposal  shall  be evidenced  by  a  Party's execution  of  the  AFE for  the
proposal.

2.25  Geophysical Operations: shall mean geophysical surveys proposed pursuant
to Article 9 (Geophysical Operations).

2.26  Hydrocarbons: shall  mean  the oil  and gas  and  associated liquid  and
gaseous  by-products (except  helium) which  may be  produced from  a wellbore
located on the Contract Area.

2.27  Integrated   Project  Team:   shall  mean   the  group   of  management,
supervisory, technical  and support  personnel from  the  Parties assigned  to
assist the Operator with preparing a Development Plan for a Contract Area, and
for the planning, design, engineering and installation  of a Production System
for a Contract Area as further provided for in Exhibit "G" (Integrated Project
Team and  Technology Sharing Provisions).  The IPT shall be formed pursuant to
Article 12.0 (Development Plan).

2.28  Joint  Account: shall mean  the Operator's  account showing  the charges
paid and credits received in the conduct of the operations hereunder and which
are to be shared by the Parties as provided in this Agreement.

2.29  Lease: shall mean each of the OCS federal oil and gas Leases (or portion
thereof) identified on Exhibit "A-1" attached hereto.

2.30  Non-Consent  Operations:  shall mean  Exploratory  Operations, Appraisal
Operations or Development Operations for which one or more Parties, having the
contractual  right to do so, makes or is  deemed to have made, an Election not
to participate in the proposed operation; and  where the Participating Parties
proceed  to conduct  the operation  at their  sole Cost  and risk  pursuant to
provisions of Article 16 (Non-Consent Operations).

2.31  Non-Operating Party: shall mean any  Party to this Agreement other  than
the Operator (or a substitute Operator).

2.32  Non-Participating Party:  shall mean  any Party  to this  Agreement who,
having the contractual right  to do so,  makes or is deemed  to have made,  an
Election not  to participate in the  proposed operation and who  is subject to
the provisions of Article 16 (Non-Consent Operations).

2.33  Non-Participating  Party's  Share:  shall  mean  the  share  of  Working
Interest and Costs  that a Non-Participating  Party would have assumed  if all
Parties had made an Election to participate in the proposed operation.

2.34  Objective Depth:  shall mean, for any  well, the shallower of  the total
footage to  be drilled (as measured in true vertical depth) or the penetration
by  the drill bit sufficient to test  the stratigraphic equivalent base of the
deepest target  formation  or interval.   Said  depth,  formation or  interval
(together with  a bottomhole location) shall be set forth in the proposed Well
Plan and AFE.

2.35  Operator: shall mean the Party identified in Article 4.1 (Designation of
the Operator) designated  to conduct all  operations pursuant to the  terms of
this Agreement.   The  term shall  also refer to  any successor  or substitute
Operator selected pursuant to Article 4.2 (Substitute Operator) or Article 4.5
(Selection of Successor Operator).

2.36  Participating Interest: shall mean a Participating Party's percentage of
participation  in  the  Costs,   risks  and  benefits  (including   rights  to
Hydrocarbons) of an operation conducted  pursuant to this Agreement; that  is,
the proportion that  the Party's Working  Interest bears to the  total Working
Interest  of all the  Participating Parties  (unless a different  Cost sharing
basis has been agreed upon by the Participating Parties in such operation).

2.37  Participating  Party:  shall  mean  a Party  who  makes  an  Election to
participate  in sharing  the Costs,  risks and  benefits (including  rights to
Hydrocarbons) of an operation  conducted pursuant to  this Agreement.  If  the
Parties have agreed upon a  different Cost sharing arrangement, those  Parties
shall be considered Participating Parties for all purposes of this Agreement.

2.38  Producible Reservoir: shall mean a Hydrocarbon accumulation into which a
Producible Well has been drilled and which is separated from and not in oil or
gas communication with any other accumulation and  identified as a Hydrocarbon
bearing  accumulation expected to  be developed under  any Development Plan or
any other accumulation from which Hydrocarbons are ultimately produced.

2.39  Producible  Well: shall mean  a well  producing hydrocarbons or,  if not
producing,  a  well that  shall  meet,  according to  either  the  MMS or  the
Participating Parties, the "well producibility criteria" set forth in Title 30
CFR  250.11 (effective  May 31,  1988) or  any succeeding  order issued  by an
appropriate governmental authority.

2.40  Production  System: shall  mean  an offshore  structure (whether  fixed,
compliant,  subsea  or  floating),   and  all  associated  components  thereof
including  the associated  Facilities, flowlines,  gathering lines  and risers
which are  used for  the production  of Hydrocarbons  from the  Contract Area.
This term shall also include the following defined terms:

      Subsea Production System: shall mean an offshore subsea structure (i.e.,
      where multiple wells or a single well could be utilized) or template and
      the components  thereof (including flowlines and  control systems) which
      are attached to the seafloor for use in obtaining Hydrocarbon production
      from  a well  not drilled  from a  Production System  and routed  to the
      Production System;

      Initial  Production System:  shall  mean the  Production System  for the
      Contract Area included in the first approved Development Plan;

      Subsequent Production System:  shall mean any new or expanded Production
      System proposed after the installation  of the Initial Production System
      for the Contract Area.

2.41  Sidetrack  or Sidetracking:  shall mean  any operation  to directionally
control and/or  intentionally deviate a  well so  as to change  the bottomhole
location  to  another bottomhole  location not  deeper than  the stratigraphic
equivalent of the original Objective Depth, unless such  intentional deviation
is done  to  straighten the  hole,  drill around  junk  or to  overcome  other
mechanical difficulties.

2.42  Subsequent Exploratory  Operation: shall  mean any  operations conducted
subsequent to  an Exploratory Well  reaching its Objective Depth  but prior to
the plugging and abandonment of such Exploratory Well.

2.43  Well Plan: shall mean  a plan for any proposed Exploratory, Appraisal or
Development  Well which contains  at least the  information defined in Article
10.2.1 (Well Plan's Minimum Specifics).

2.44  Withdrawing Party: shall mean a Party that withdraws from this Agreement
under the  conditions defined  in Article  17.1 (Right  of  Withdrawal) or  is
deemed to have withdrawn under Article 16.2 (Acreage Forfeiture Provisions).

2.45  Working Interest: shall mean the leasehold interest of each Party in and
to each Lease within the Contract  Area (expressed as the percentage described
in Article I of Exhibit "A-2" attached hereto).

                                   ARTICLE 3
                                   EXHIBITS

3.1   Exhibits: All references in this Agreement to "Exhibits" without further
qualification shall  mean  the Exhibits  listed  below  and attached  to  this
Agreement.   Each  of the  Exhibits  listed below  are  made  a part  of  this
Agreement and shall be deemed incorporated into the body of  this Agreement by
this  reference, as  completely  as if  the  full text  of  each Exhibit  were
contained within the text of this Agreement.  If the provisions  of any of the
Exhibits  conflict with any  provisions of  this Agreement, the  provisions of
this Agreement shall prevail with exception of Exhibits "C," "D," and "G'.

      Exhibit "A-1"    Contract Area
      Exhibit "A-2"    Contract Area, Working Interests of the Parties,
                         Operator and Representatives
      Exhibit "B"       Offshore Insurance Provisions
      Exhibit "C"       Accounting Procedure
      Exhibit "D"       Gas Balancing Agreement
      Exhibit "E"       Certification of Nonsegregated Facilities
      Exhibit "F"       News Release Guidelines
      Exhibit "G"       Integrated Project Team and Technology Sharing
      Exhibit "H"       Dispute Resolution Procedure
      Exhibit "I"       Memorandum of Joint Operating Agreement

                                   ARTICLE 4
                             SELECTION OF OPERATOR

4.1   Designation  of  the  Operator:  Reading  &  Bates  Development  Co.  is
designated  as the  Operator  for  the Contract  Area  and shall  conduct  all
operations within such  Contract Area  for the Joint  Account of the  Parties.
This designation  of  operatorship is  subject  to  approval by  the  Minerals
Management  Service (MMS) and  the Parties agree to  promptly execute and file
such documents  as may be  required to  gain approval of  this designation  of
operatorship.

4.2   Substitute Operator:  If the Operator becomes  a Non-Participating Party
in a Non-Consent  Operation, any Participating  Party may  be selected by  the
Participating  Parties as a  General Matter  and designated as  the substitute
Operator, with  the  same authority,  rights, obligations  and  duties as  the
Operator, except when:

      (a)   the drilling and  other contracts for equipment  and Facilities to
            be utilized on the Non-Consent Operation are not assignable; or
      (b)   the operation is conducted from a Production System being operated
            by the Operator.

If no substitute Operator is designated by the Participating Parties, then the
Operator, at its option, shall conduct such Non-Consent Operations at the sole
risk, Costs  and expense of  the Participating  Parties and  subject to  their
control, supervision  and direction.   If  the  Operator conducts  Non-Consent
Operations on behalf of the Participating Parties (when the Operator is a Non-
Participating Party), the Operator shall furnish  the Participating Parties an
estimate of the Costs of the Non-Consent Operation.  The Operator shall not be
required  to proceed  with such  Non-Consent Operations  unless and  until the
Costs thereof  have been advanced to  it by the Participating  Parties, to the
end that  the Operator need  not expend  any of  its own funds  for such  Non-
Consent Operation.    If a  Non-Consent Operation  conducted  by a  substitute
Operator  is completed  or results  in a  producing well,  said well  shall be
turned over to  the Operator for future operations within  thirty (30) days of
completion of such operations. 

4.3   Resignation of Operator:  The Operator may resign at any  time by giving
written notice  to  the Parties;  provided, however,  the  Operator shall  not
resign during  a  Force Majeure  situation described  in  Article 25.1  (Force
Majeure).  If the Operator no longer  owns an interest in a Contract Area, the
Operator  shall be  deemed to  have resigned  without any  action by  the Non-
Operating Parties other than the selection of a successor Operator.

4.4   Removal of Operator:  The Operator may be removed either  as a result of
an  assignment of all  or a  portion of the  Operator's Working Interest  in a
Contract Area or for good cause under the following circumstances.

      4.4.1 Removal Upon Assignment: If the Operator assigns  all or a portion
      of  it's Working  Interest in  a Contract  Area (excluding  any interest
      assigned to an Affiliate) which  reduces the Operator's Working Interest
      in  a Contract Area  to less than  the Working Interest  of another Non-
      Operating   Party,  whether   accomplished   by   single  or'   multiple
      assignments, then the Operator may be  removed by vote of the Parties as
      a General Matter.   Provided however, the Operator shall not  be removed
      solely  on the  basis  of a  reduced Working  Interest when  the reduced
      Working  Interest is equal  to or larger  than the next  largest Working
      Interest of a Party.

      4.4.2 Removal for Cause  by Vote: The Operator may be  removed for cause
      by vote of the  Parties as a General Matter if  the Operator commits any
      of the following acts:

         (a)      the Operator becomes insolvent or unable to pay its debts as
                  they  mature,  makes  an   assignment  for  the  benefit  of
                  creditors,  commits any  act of  bankruptcy or  seeks relief
                  under laws providing for the relief of debtors; or,

         (b)      a   receiver  is   appointed   for  the   Operator  or   for
                  substantially all of its property and/or affairs; or,

         (c)      the Operator commits an  act of gross negligence or  willful
                  misconduct; or,

         (d)      the Operator  is unable to  meet the standards  of operation
                  contained   in  Articles  5.2   (Workmanlike  Conduct),  5.3
                  (Drilling), 5.4 (Liens and Encumbrances) and 5.6 (Reports to
                  Government Agencies); or,

         (e)      the  Operator commits  a  substantial breach  of a  material
                  provision of  this Agreement and  fails to cure  same within
                  thirty (30)  days after  receipt of  notice of  such breach.
                  However, if the breach specified in the notice  is of such a
                  nature  that it  reasonably cannot  be corrected  within the
                  thirty  (30) day period, and the Operator within said period
                  begins corrective action  or steps to correct the breach and
                  thereafter  diligently  carries  such corrective  action  to
                  completion, the Operator shall not be removed.

4.5   Selection of  Successor Operator:  Upon resignation  or  removal of  the
Operator; a successor Operator shall  be selected by the Parties as  a General
Matter.   If the resigned or  removed Operator fails to vote  or votes only to
succeed itself,  then the successor  Operator shall  be selected as  a General
Matter after excluding the vote  of the resigned or removed Operator.   In the
event there are  only two Parties  to this Agreement, the  Non-Operating Party
shall become the Operator.

4.6   Effective Date of Resignation or Removal: The  resignation or removal of
the  Operator shall become effective at 7:00 am. on the first day of the month
following a  period of ninety  (90) days  after said notice,  unless a  longer 
period  of time  is required  to obtain  approval by  the Minerals  Management
Service.   Prior  to the  successor Operator's  assumption  of the  Operator's
duties,  the previous  Operator (the  "outgoing  Operator") shall  continue to
exercise its authorities and meet its duties as Operator.  Upon selection of a
successor Operator, the outgoing Operator shall  be bound by the terms of this
Agreement  as a  Non-Operating  Party.   The  resignation  or  removal of  the
outgoing Operator  shall not prejudice any rights,  obligations or liabilities
which  accrued during  the  period when  the  outgoing Operator  acted as  the
Operator.   If  the outgoing  Operator  resigns or  is  removed, it  shall  be
entitled to  charge the  Joint Account  for the reasonable  Costs incurred  in
connection with the change of operatorship.

4.7   Delivery of Property: On the effective date of resignation or removal of
the  Operator, the outgoing  Operator shall deliver  to the successor Operator
possession  of everything jointly  owned by  the Parties, including  all funds
relating  to the Joint  Account, all joint  Hydrocarbons, all joint equipment,
materials  and appurtenances  used  in conducting  operations  and all  books,
records and inventories relating to joint operations  (other than those books,
records and inventories maintained by the outgoing Operator as the  owner of a
Working  Interest).    Upon  such delivery,  the  outgoing  Operator  shall be
discharged from  all future  rights  and obligations  as  the Operator.    The
outgoing Operator shall further  use its reasonable efforts to transfer to the
successor Operator, effective as of the  effective date of such resignation or
removal, its rights as the  Operator under all contracts exclusively  relating
to joint operations and the successor Operator shall assume all obligations of
the Operator thereunder.   As soon as practicable after  the effective date of
such resignation  or removal,  the Parties shall  audit the Joint  Account and
conduct an  inventory of all  joint property  and all joint  Hydrocarbons, and
such inventory shall be used in the return of and the accounting for the joint
property  and the  joint  Hydrocarbons by  the outgoing  Operator.   All Costs
incurred  in connection with such audit and  inventory shall be charged to the
Joint Account.

                                   ARTICLE 5
                         RIGHTS AND DUTIES OF OPERATOR

5.1   Exclusive Right to Operate:  Except as otherwise provided,  the Operator
shall have the exclusive right and duty to conduct (or cause  to be conducted)
all  operations pursuant to  this Agreement.   With the exception  of any team
formed pursuant to this Agreement, the number of employees or contractors used
by the Operator in conducting  operations hereunder, their selection, and  the
hours of labor and the compensation for services performed shall be determined
by the Operator, and all such employees or contractors shall  be the employees
or  contractors, respectively, of  the Operator.   The Operator shall contract
for  and employ  any drilling  rigs, tools,  machinery, equipment,  materials,
supplies  and personnel reasonably  necessary for the  Operator to conduct the
operations provided for in this Agreement.

5.2   Workmanlike  Conduct: The  Operator shall  conduct all  operations  in a
proper  and  workmanlike  manner  in accordance  with  methods  and  practices
customarily  used in sound oil and gas field  practice and with that degree of
diligence  reasonably  and  ordinarily  exercised by  an  experienced  prudent
operator   engaged  in  a   similar  activity   under  the  same   or  similar
circumstances.   The Operator  shall not be  liable to the  Parties for losses
sustained or liabilities incurred as a result of its actions  as the Operator,
except such  as may result  from its  gross negligence or  willful misconduct.
Unless  otherwise provided, Operator  shall consult with  the Parties and keep
them all informed of all important matters.

5.3   Drilling:  The Operator may  have all  drilling operations  conducted by
qualified and responsible independent contractors who are not affiliated  with
the  Operator and  are employed  under competitive  contracts.   A competitive
contract is a contract containing current terms, rates and  provisions that do
not exceed those  generally prevailing on  the OCS in the  Gulf of Mexico  for
operations involving drilling rigs of an equivalent type, operating in similar
environments, and  equipped to  the Operator's standard  conditions which  are
capable  of drilling  the proposed  well(s) within the  time schedule  for the
operations to be conducted.  The Operator may employ its equipment, personnel,
Operator owned drilling rig, workover  rig or snubbing unit in the  conduct of
such  operations  in accordance  with  Exhibit "C"  (Accounting  Procedure) or
pursuant  to a  written  agreement among  the Participating  Parties.   If the
Operator's equipment, personnel,  drilling rig, workover rig  or snubbing unit
are employed in conducting operations  under this Agreement, the terms,  rates
and provisions  for  use shall  be consistent  with  then current  competitive
contracts prevailing in the OCS in the deepwater Gulf of Mexico.   Prior to RB
utilizing a drilling rig owned by RB's affiliate, the parties will establish a
mutually  agreeable day  rate based upon  the average  commercial rates  for a
similar specification drilling rig prevailing in the immediate area.

5.4   Liens  and Encumbrances:  The Operator  shall use reasonable  efforts to
keep  the Leases, Production  Systems, Facilities and  other equipment and any
jointly owned Hydrocarbons free from all liens  and encumbrances [except those
provided for in Article 6.3 (Security Rights) ] which might arise by reason of
the operations conducted under this Agreement.

5.5   Records: The Operator shall keep accurate books, accounts and records of
operations  hereunder in compliance  with the Accounting  Procedure in Exhibit
"C" (Accounting Procedure).  Unless otherwise provided  for in this Agreement,
all records of  the Joint Account shall be available  to a Non-Operating Party
at all reasonable  times during the Operator's normal office hours pursuant to
the provisions contained in Exhibit "C" (Accounting Procedure).

5.6   Reports to Government  Agencies: The Operator shall make  timely reports
to all governmental authorities  that it has  a duty to  make as Operator  and
shall furnish  copies of  such  reports to  the  Participating Parties.    The
Operator shall give timely  written notice to the Parties of litigation and/or
administrative proceedings of which it has notice affecting a Contract Area or
operations hereunder.

5.7   Information to Participating  Parties: The Operator  shall, in a  timely
manner, furnish each Participating  Party the following information pertaining
to each well being drilled (provided such information was obtained or received
by Operator):

      (a)   copy  of the application  for permit  to drill and  all amendments
            thereto;
      (b)   daily drilling and workover  reports; daily mud checks, mud  logs,
            lithological,  and  Hydrocarbon  information;  daily   casing  and
            cementation  tallies   and  cumulative   Costs  incurred   on  the
            operation;
      (c)   complete report of all core analysis;
      (d)   copies  of  any  logs  or surveys  as  run  (including  a complete
            "library tape" of the digitally recorded data);
      (e)   copies of well test results, bottomhole pressure  surveys, gas and
            condensate analyses or similar information;
      (f)   copies of  reports  made to  or notices  or  orders received  from
            regulatory agencies;
      (g)   48 hours advance notice  of logging, coring or  testing operations
            (or,  if conditions  do not  permit such  advance notice,  as much
            advance notice as is reasonably possible);
      (h)   upon written request, and  if sufficient quantities are available,
            samples  of cutting and sidewall  cores marked as  to depth, to be
            packaged and shipped at expense of the requesting Party;
      (i)   copies of the drilling prognosis;
      (j)   if  conventional cores  are taken,  the requesting Party  shall be
            allowed access to inspect and evaluate said cores and; 
      (k)   samples of gas, condensate  and oil, if sufficient  quantities are
            available.

Upon written request, the Operator shall use its reasonable efforts to furnish
to  a  requesting Participating  Party  any  additional available  information
(including a complete slabbed section of all recovered cores, if requested and
available),  acquired by  the  Operator  for  the Participating  Parties,  not
otherwise  furnished   under  this  Article  (not   including  any  derivative
information independently developed at Operator's sole Cost and expense).  The
Costs of gathering and furnishing such  additional available information shall
be charged to the requesting Participating Party.

5.8   Completed Well Information:  Operator shall, in a timely manner, furnish
to  each participating  Party  the following  information  pertaining to  each
completed well:

      (a)   monthly report of production and injection;
      (b)   copies of reports made to regulatory agencies;
      (c)   report on status of wells not producing and not abandoned;
      (d)   Hydrocarbon status report;
      (e)   bottomhole pressure data;
      (f)   composite  of  all logs  run  (e.g.,  TDT, Carbon-Oxygen,  Spinner
            Surveys, Casing Collar, etc.); and,
      (g)   reports of inventory.

5.9   Information to Non-Participating Parties:  The Operator shall furnish to
each Non-Participating  Party copies of  all non-confidential reports  made to
regulatory agencies.  A Non-Participating  Party shall be entitled to  receive
the information specified  in Articles 5.7 and  5.8 only after fulfilling  the
requirements specified in Article 16 (Non-Consent Operations).   A Party which
has  permanently  relinquished  all  of its  Working  Interest  in  either the
Contract Area or a specific Contract Area shall not be entitled to receive any
information  specified in  Articles 5.7  and 5.8  above with  respect  to such
relinquished interest.

5.10  Cost Information: Within one hundred  twenty (120) days after completion
of a Non-Consent Operation, the Operator shall furnish all Parties an itemized
statement of  the Cost of  such operations and  an inventory of  the equipment
pertaining thereto  or, at its  option, the  Operator in lieu  of an  itemized
statement of such Costs  may submit a detailed statement of  monthly billings.
For the  purposes of calculating  recoupment of Costs  pursuant to  Article 16
(Non-Consent  Operations),  the  Operator  shall  furnish  to  all  Parties  a
quarterly statement showing operating expenses and the  proceeds from the sale
of Hydrocarbon production from the wells from which recoupment is being made.

5.11  Managing Production: All Parties  shall cooperate and use  due diligence
to avoid gas imbalances resulting  in pipeline penalties under the  provisions
of the applicable transportation tariffs  of any transporting pipelines.   Any
additional costs imposed  on Operator as a  result of gas  pipeline imbalances
with transporters shall  be borne by the individual Parties  in the proportion
that each individual Party's over  and under deliveries caused such  imbalance
penalty,  except where  the  imbalance is  caused by  the gross  negligence or
willful misconduct of Operator.   For purposes  of this Article, gas  pipeline
imbalances shall be defined as the difference between gas nominations accepted
by the gas transporter and the actual volume delivered to  the gas transporter
for each Party's account.

                                   ARTICLE 6
                    EXPENDITURES AND ANNUAL OPERATING PLAN

6.1   Basis of  Charges  to the  Parties: Except  as  otherwise provided,  the
Operator shall pay all Costs of joint  operations and each Participating Party
shall reimburse the Operator, in proportion to its Participating Interest, for 
the Costs of  each joint  operation.   The Operator  shall have  the right  to
require each Participating Party to advance its  respective share of estimated
expenditures,  as  provided in  Exhibit  "C"  (Accounting  Procedure).   Funds
received  by  the  Operator  under  this  Agreement  may  be  commingled  with
Operator's  own funds.   All charges, credits  and accounting for expenditures
shall be made pursuant to Exhibit "C" (Accounting Procedure), attached hereto.

6.2   Authorization for  Expenditure: The Operator  shall not make  any single
expenditure or undertake any project or operation costing Two Hundred Thousand
Dollars ($200,000) or more, unless an Authorization  for Expenditure (AFE) has
either (1) been  included in a proposal  for an operation and  approved by the
Participating  Parties through their Election to participate in the operation,
or  (2) received the  approval of the  Parties as a  General Matter.   For any
single  expenditure or  project costing  in excess  of Fifty  Thousand Dollars
($50,000), but less than Two Hundred Thousand Dollars ($200,000), the Operator
need not submit an AFE, but  shall furnish written information describing  the
expenditure  to  each of  the  Participating  Parties.   In  the  event of  an
emergency and notwithstanding  the foregoing, the Operator  shall be empowered
to  immediately  make  such  expenditures   for  the  Joint  Account  of   the
Participating Parties as, in its opinion as a reasonable and prudent Operator,
are required  to deal with the  emergency.  The  Operator shall report  to the
Participating  Parties, as promptly  as possible, the  nature of the emergency
and action taken.

      6.2.1 AFE Overrun  Notice: Operator shall provide an  AFE overrun notice
      to all  Participating Parties whenever it appears (based upon Operator's
      reasonable estimate)  that the  actual total  Costs associated  with any
      separate  AFE will  exceed the  original AFE  by more  than ten  percent
      (10%).

      6.2.2 Supplemental AFE  for  Cost  Overruns for  Wells:  If  during  the
      drilling  of  Exploratory   Wells,  Subsequent  Exploratory  Operations,
      Appraisal  Wells, subsequent Appraisal Operations, Development Wells, or
      subsequent  Development  Operations, it  appears (based  upon Operator's
      reasonable  estimate)  that  the actual  Costs  will  exceed  the latest
      approved  AFE for  the well by  fifteen percent  (15%) or  three million
      dollars  ($3,000,000),  whichever  is  less,  Operator  shall  submit  a
      supplemental AFE to  the Participating Parties to make an Election as to
      their  further participation in  the well AFE.   Any Participating Party
      which becomes  a Non-Participating  Party as  to such further  operation
      under  this Article 6.2.2 shall be  subject to the provisions of Article
      16 (Non-Consent Operations) only for  the amount of such supplement,  or
      forfeiture of interest in the event of an Exploratory Operation.

      6.2.3 Supplemental AFE for Cost Overruns on Integrated Project Team AFE:
      If  it  appears (based  upon  Operator's reasonable  estimate)  that the
      actual Integrated Project Team Costs will exceed the latest approved AFE
      by  fifteen percent  (15%) or  4 million  five hundred  thousand dollars
      ($4,500,000), whichever  is less,  Operator shall submit  a supplemental
      AFE to the Participating Parties to make an Election as to their further
      participation  in the Integrated  Project Team  AFE.   Any Participating
      Party  which  becomes  a  Non-Participating  Party  as  to  such further
      operation under this Article 6.2.3 shall be subject to the provisions of
      Article  16.5.3 (Geophysical  Operations, Feasibility  Study, Integrated
      project  Team  andlor Final  Design AFE)  only  for the  amount  of such
      supplement.

      6.2.4 Supplemental  AFE for  Cost Overruns  on Final  Design AFE:  If it
      appears  (based upon  Operator's  reasonable estimate)  that the  actual
      design Costs will exceed the latest approved Final Design AFE by fifteen
      percent   (15%)  or   seven  million   five  hundred   thousand  dollars
      ($7,500,000), whichever  is less,  Operator shall submit  a supplemental
      AFE to the Participating Parties to make an Election as to their further
      participation  in the Final  Design AFE.   Any Participating Party which
      becomes a  Non-Participating Party as  to such  further operation  under
      this Article 6.2.4 shall be subject to the provisions of  Article 16.5.3
      (Geophysical  Operations, Feasibility  Study,  Integrated  Project  Team
      andlor Final Design AFE) only for the amount of such supplement.

      6.2.5 Supplemental  AFE  for Cost  Overruns  on Fabrication  AFE:  If it
      appears  (based upon  Operator's  reasonable estimate)  that the  actual
      Costs associated with  any separate AFE submitted  under the Fabrication
      AFE will exceed the latest  approved Fabrication AFE by fifteen  percent
      (15%)  or  twenty  million  dollars ($20,000,000),  whichever  is  less,
      Operator shall submit a supplemental AFE to the Participating Parties to
      make  an Election as  to their further  participation in the Fabrication
      AFE.  Any Participating Party which becomes a Non-Participating Party as
      to such further operation  under this Article 6.2.5 shall  be subject to
      the provisions  of Article  16.2  (Non-Consent Fabrication  AFE for  the
      Initial Production System).

      6.2.6 Supplemental AFE  for  Cost Overruns  on  All  Other AFEs:  If  it
      appears  (based upon  Operator's  reasonable estimate)  that the  actual
      Costs will exceed the latest  approved AFE for the operation  by fifteen
      percent (15%) or  three million dollars ($3,000,000), whichever is less,
      Operator shall submit a supplemental AFE to the Participating Parties to
      make  an Election as  to their  further participation in  the operation.
      Any Participating Party  which becomes a  Non-Participating Party as  to
      such  further operation under  this Article  6.2.6 shall be  subject, if
      applicable,  to the  provisions of  Article 16  (Non-Consent Operations)
      only for the amount of such supplement.

      6.2.7 Further Operations  During  a Force  Majeure:  No Party  shall  be
      allowed to make  an Election not to participate  in a further operations
      under Articles  6.2.2 (Supplemental  AFE for  Cost Overruns  for Wells),
      6.2.3  (Supplemental AFE FOR  Cost Overruns  on Integrated  Project Team
      AFE),  6.2.4 (Supplemental AFE  for Cost Overruns  on Final Design AFE),
      6.2.5 (Supplemental AFE for Cost  Overruns on Fabrication AFE) or  6.2.6
      (Supplemental AFE for  Cost Overruns on  All Other AFEs) during  a Force
      Majeure or other emergency as described in Article 25.1 (Force Majeure),
      but may make its Election not  to participate after termination of  such
      emergency.

6.3   Security Rights: In addition to  any other security rights and  remedies
provided by law  with respect to services rendered  or materials and equipment
furnished under this Agreement, the Parties shall  have the following security
rights:

      6.3.1 Operator's  First Lien:  Each Non-Operator  grants the  Operator a
      first lien upon  each Party's Working  Interest in the  Leases within  a
      Contract Area  (including  any interests  in  the  Leases now  owned  or
      hereafter  acquired), including  but not  limited to  (a)  all equipment
      installed  on  the Lease(s),  (b)  all  Hydrocarbons or  other  minerals
      severed and  extracted  from or  attributable  to  the Leases,  (c)  all
      accounts and proceeds of sale  (including, but not limited to,  accounts
      resulting  from the  sale  of  such  Hydrocarbons  or  other  minerals),
      contract rights and  general intangibles arising in  connection with the
      sale of such Hydrocarbons  or other minerals, (d)  fixtures and (e)  any
      and  all accessions, additions and attachments  thereto and the proceeds
      and products therefrom.  This first lien shall secure the payment of all
      charges against such Party, together  with interest thereon at the  rate
      set  forth in Exhibit  "C" (Accounting  Procedure) (or the  maximum rate
      allowed  by law, whichever  is the lesser),  reasonable attorneys' fees,
      court costs and  other directly related collection costs.   If any Party
      does  not  pay  such charges  when  due,  the  Operator  shall have  the
      additional right  to collect  from the  purchaser of  defaulting Party's
      Hydrocarbon production the proceeds from the sale  of such Party's share
      of Hydrocarbon production in the Contract Area until the amount owed has
      been paid.  Each purchaser  shall be entitled to rely on  the Operator's
      statement concerning the amount owed.

      6.3.2 Non-Operating Party's Security  Interest: Operator  grants a  like
      security interest  to the  Non-Operating  Parties to  secure payment  of
      Operator's proportionate share of expenses.  Each Party paying its share
      of  unpaid expenses  pursuant  to Section  6.5  (Unpaid Charges)  hereof
      shall, to obtain  reimbursement thereof, be  subrogated to the  security
      rights described herein.

      6.3.3 Recordation: To  provide evidence  of, and  to better protect  the
      Parties'  security rights  created hereunder,  upon request,  each Party
      agrees to  and shall execute and notarize a financing statement on a UCC
      form,  and the  Memorandum  of  Joint  Operating Agreement  attached  as
      Exhibit "I".   The  Parties hereby  authorize the  Operator to  file the
      notarized  Memorandum of  Joint  Operating Agreement  to provide  record
      notice of this Agreement in the appropriate public records.

6.4   Default: If any Party does  not pay its share of the  charges authorized
under this  Agreement when due, the  Operator may give that  Party notice that
unless payment is made within thirty  (30) days, the non-paying Party shall be
in default.   Any Party  in default shall have  no further access  to the rig,
maps,  records,  data,  interpretations   or  other  information  obtained  in
connection with operations or be allowed  to participate in meetings.  A Party
in default shall not be entitled to vote on any General Matter until such time
as the Party in default is no longer in default.  The voting interest of  each
non-defaulting  Party shall  be  counted in  the proportion  its Participating
Interest bears to the total non-defaulting Participating Interests.  As to any
operation approved  during the  time  a Party  is in  default,  such Party  in
default shall be deemed to be a  Non-Participating Party.  If a Party notifies
the Operator in  writing that all  or a portion of  such payment is  not being
made as a result of  a good faith dispute over such charges,  said Party shall
not be  considered in  default as  to the disputed  amount, provided  that any
undisputed portion of such Costs are promptly paid to the Operator.

6.5   Unpaid Charges: If any Participating Party fails to pay its share of the
charges due hereunder within thirty (30)  days after receipt of the Operator's
statement,  the  Operator  may  take  immediate  steps  to  diligently  pursue
collection and to exercise the Operator's lien and security  rights granted by
this Agreement.  The Operator  shall keep an accurate account of  amounts owed
(plus interest  and costs) by the  Party in default and  any amounts collected
against  the indebtedness.   If  a Party  is in  default and  any indebtedness
remains delinquent for  a period of three (3) months,  the other Participating
Parties  shall,  upon  the  Operator's  request,  pay  the  unpaid  amount  in
proportion that their Participating Interest bears to all paying Participating
Interests.   Each Participating Party  paying its share  of the unpaid  amount
shall  be subrogated to the Operator's lien  and security rights to the extent
of such payment.

6.6   Carved-out Interests:  The agreements creating  any overriding  royalty,
production  payment, net  proceeds  interest, carried  interest  or any  other
interest  carved out  of a Working  Interest in a  Lease(s) shall specifically
make  such interests inferior to the rights  of the Parties to this Agreement.
If any  Party whose Participating Interest  is so encumbered does  not pay its
share  of  expenses,  and  the  proceeds  from  the sale  of  its  Hydrocarbon
production  under  Article 6.3  (Security  Rights) are  insufficient  for that
purpose,  the security rights provided  for herein may  be applied against the
carved-out interests with  which such Working Interest  is burdened.   In such
event,  the  rights  of  the  owner  of  such  carved-out  interest  shall  be
subordinated to the security rights  granted by Article 6.3. Additionally,  in
the  event a Party  elects not to  participate in any  operation hereunder and
becomes a Non-Participating Party pursuant hereto, then and in that event, the
Participating Parties  shall acquire  the interests of  such Non-Participating
Party with respect to such Election, free and clear of any and all obligations
created under or pursuant to any carved-out interest as described above.

6.7   Annual Operating Plan: Beginning in the year in which a Development Plan
is approved for  a Contract  Area, and  each subsequent  year thereafter,  the
Operator shall  develop an Annual  Operating Plan.  The  Annual Operating Plan
process will be used (1) as a reporting mechanism  by which the- Operator will
inform the Non-Operating Parties of results of the previous year's activities,
(2) to review ongoing operations  and (3) to forecast activities,  anticipated
Hydrocarbon  production volumes,  operating expenses and  capital expenditures
for the remainder of the current year and the next succeeding calendar year.

      6.7.1 Development and Submission of the Annual Operating  Plan: Prior to
      May  I of each year,  the Operator will conduct  a meeting with the Non-
      Operating  Parties to  review the  results of  the previous  year.   The
      Operator  will   also  provide   the  Non-Operating  Parties   with  its
      anticipated activities for  the current and  following year and  solicit
      input regarding these activities from the Non-Operating Parties.   After
      this  meeting, the Operator  will prepare and  submit its proposed draft
      for the Annual Operating Plan prior to June I of each year.

      6.7.2 Review  of the  Annual Operating  Plan: The  Non-Operating Parties
      will  provide suggested  changes, additions or  deletions to  the Annual
      Operating Plan to the Operator and all other Parties prior to July 15 of
      each year.  The Operator  will then make any changes it  deems necessary
      and submit the  Annual Operating Plan  no later than  October I of  each
      year.

      6.7.3 Content  of Annual Operating Plan:  The Annual Operating Plan will
      include  an  estimated capital  budget,  expense  budget and  Operator's
      anticipated forecast as follows:

         6.7.3.1  Capital Budget:  The Annual Operating Plan  shall contain an
         estimated capital budget that includes the following:

         (a)   a  list  of  proposed  wells  to  be  drilled  including  their
               anticipated order, drilling time, depths,  locations, objective
               sands, type of well  (Development, Appraisal, etc.), purpose of
               well (production, injection, etc.) and estimated Costs;

         (b)   capital  workovers,  which shall  be  defined  as any  workover
               operation conducted  to  recomplete a  well to  a  new zone  or
               install artificial  lift listed  by well, with  their estimated
               Cost;

         (c)   other capital projects  requiring a  gross expenditure  greater
               than  three million  dollars ($3,000,000).   The  term "capital
               project" shall include addition  of new equipment, expansion or
               upgrades of existing equipment; and

         (d)   an estimated total amount (in aggregate) for capital projects.

         6.7.3.2  Expense Budget:  The Annual Operating Plan  shall contain an
         estimated expense budget that includes the following:

         (a)   expense workovers,  which shall  be defined as  any anticipated
               workover operation  which is  not a  capital workover  (such as
               repair work or reworks within  the same zone), listed by  well,
               with their estimated Cost;

         (b)   all expense projects requiring a gross expenditure greater than
               three million dollars ($3,000,000).  The term "expense project"
               shall include  repair, replacement, inspection  and maintenance
               of existing equipment;

         (c)   an estimated total amount  (in aggregate) for expense projects;
               and

         (d)   estimated Operations and Maintenance (O&M) expenditures for the
               year may be shown in the aggregate.  O&M expenses shall include
               the  ongoing, everyday  expenditures  necessary to  operate the
               field.

         6.7.3.3  Operator  Forecasts  and  Informational  Items:  The  Annual
         Operating Plan shall contain  the Operator's reasonable forecasts and
         projections  (but are recognized  as forecasts and projections  only)
         including the following information:

         (a)   production forecasts;

         (b)   injection forecasts;

         (c)   fuel and flare gas forecasts;

         (d)   scheduled or planned downtime exceeding three (3) days;

         (e)   data collection programs; and

         (f)   other areas deemed of significance by the Operator.

      6.7.4 Effect of  the Annual  Operating Plan: The  Annual Operating  Plan
      shall be primarily for informational and planning purposes and shall not
      obligate  any Party  to any  expenditures or  constitute an  Election to
      participate  in any specific  operation.  However,  the Annual Operating
      Plan is  recognized as the  Operator's effort  to forecast and  plan for
      activities during  the  year while  providing for  input  from the  Non-
      Operators.  Pursuant to the terms and conditions of this  Agreement, any
      Party may make proposals  for operations which were not  included in the
      Annual Operating Plan.   Approval of any such operation, under the terms
      provided in  Article 8 (Voting, Election  & Notices), shall be  deemed a
      modification to the Annual Operating Plan. 

                                 ARTICLE 7                                
                          CONFIDENTIALITY OF DATA

7.1   Confidentiality Obligation: The Parties agree that all Confidential Data
acquired  or  obtained by  any  Party  with respect  to  the joint  operations
conducted under  this Agreement  (and the  scope and  terms of  this Agreement
itself)  shall be kept confidential during the  term of this Agreement and for
an additional period of two (2) years after the termination of this Agreement.
Each Party  agrees to maintain the  secrecy of the Confidential  Data using at
least the standard of care it normally uses in protecting its own confidential
information and trade secrets.   The Confidential Data shall be made available
to each Participating Party for its exclusive use.  During the confidentiality
period, the  Confidential  Data shall  not  be disclosed  to any  third  party
(unless disclosed under an "exception  to confidentiality" under Article 7.1.1
or as a "permitted disclosure" under Article 7.1.2).

      7.1.1 Exceptions  to  Confidentiality:  The  confidentiality  obligation
      shall  not apply  to the  extent that  particular items  of Confidential
      Data:
            (a)   are  now or later  become part  of the public  domain (other
                  than as  a result of a wrongful act or omission by a Party);
                  or
            (b)   are  now or  later become  available to  a Party  on a  non-
                  confidential basis from a source, other than a Party hereto,
                  that  is   legally  permitted   to  disclose  the   item  of
                  Confidential Data; or
            (c)   were known to a Party  on a non-confidential basis prior  to
                  the  disclosure  of the  Confidential Data  to it  under the
                  terms of this Agreement or to which such Party was otherwise
                  entitled at the time of disclosure; or
            (d)   is independently developed by  employees or contractors of a
                  Party who have not had access to Confidential Data.

      7.1.2 Permitted  Disclosures:  The   Operator  may  disclose  items   of
      Confidential  Data  to  such  third  parties  as  may  be  necessary  in
      connection  with the operation  of a Contract  Area, provided such third
      parties are bound by written  agreement to keep secret the  Confidential
      Data for a period of time not  less than is set forth in this  Agreement
      (or  a lesser  period if  agreed by  all Parties).   The  Operator shall
      promptly inform the  other Parties  hereto of  the names  of such  third
      parties   and   list  the   items   of   Confidential  Data   disclosed.
      Notwithstanding anything  herein  to the  contrary  and subject  to  the
      restrictions that: (i) the Confidential  Data shall not be removed  from
      the custody and premises of the Party  making such disclosure, excepting
      disclosure made  pursuant to items (1) and (5) below; and (ii) that such
      third party be  bound by written  agreement not to  use or disclose  the
      Confidential  Data  except  for  the  express  purpose  for  which  such
      disclosure is to be made, any  Party may disclose, in whole or  in part,
      the Confidential Data:

            (1)   to any Affiliate of such Party provided such Affiliate shall
                  be bound by the confidentiality provision contained  herein;
                  or

            (2)   to  any  bona  fide,  financially  responsible,  prospective
                  assignee  of any  portion of  such Party's  Working Interest
                  (including but not limited to an entity with whom a Party or
                  its Affiliates is conducting bona fide negotiations directed
                  toward  a merger, consolidation or a sale of a Party's or an
                  Affiliate's shares or substantially all of its assets in the
                  OCS  Gulf of  Mexico),  provided that  the disclosing  Party
                  shall give all other Parties to this Agreement not less than
                  fifteen  (15)  days  advance written  notice  specifying the
                  extent  to   which  that  Party  intends   to  disclose  the
                  Confidential Data  to the prospective assignee  and the name
                  of such prospective assignee; or

            (3)   to  any potential  contractors  or professional  consultants
                  engaged by  or on behalf of  -such Party and acting  in that
                  capacity  where  such  disclosure   is  essential  to   such
                  contractor's or consultant's work; or

            (4)   to any bank  or other  financial institution  to the  extent
                  appropriate  to   a  Party   arranging  financing   for  its
                  obligations under this Agreement; or,

            (5)   to the extent required by the terms of any Lease, or by law,
                  order,   decree,  regulation  or   rule  (including  without
                  limitation,  those  of  any  regulatory  agency,  securities
                  commission,  stock  exchange,  judicial  or   administrative
                  proceeding).   If a Party  is legally compelled  to disclose
                  any Confidential Data such  Party shall promptly provide all
                  other  Parties  to this  Agreement  written  notice of  such
                  proceedings so  that the  non-disclosing Parties may  seek a
                  protective order or  other remedy.  A disclosing Party shall
                  furnish only  such Confidential Data as  is legally required
                  and will  use its reasonable efforts  to obtain confidential
                  treatment for any Confidential Data disclosed; or,

            (6)   to  an  entity   desiring  to   transport  and/or   purchase
                  Hydrocarbons produced  hereunder for  the purpose of  making
                  Hydrocarbon   reserve   estimates   and   other    technical
                  evaluations.

      7.1.3 Limited Releases  to Offshore Scout Association:  The Operator may
      disclose  the following well  information at  weekly Offshore  Oil Scout
      meetings:

            7.1.3.1     Well Location:

            (a)   proposed surface location;
            (b)   surveyed surface location with X & Y;
            (c)   proposed bottom hole location;
            (d)   KB and water depth;
            (e)   OCS number and well number; and
            (f)   actual  bottom hole  location (must  be reported  within two
                  weeks of reaching total depth of the well).

            7.1.3.2     Well Operations:

            (a)   rig move in date;
            (b)   spud date;
            (c)   weekly drilling depth, MW;
            (d)   casing depths, cement, EMWs;
            (e)   mud weight, sidewall cores, cores, RFTs (only that they were
                  taken); M logs (only the depths and type run);
            (g)   date Total Depth is reached; and
            (h)   date rig is released.

            7.1.3.3     Well Completion Information:

            (a)   any  Media  Release  or  public filing  of  well  completion
                  information will be furnished at weekly Scout meetings.

      7.1.4 Continuing Confidentiality Obligation: Any Party who ceases to own
      a Working Interest in a Contract Area shall nonetheless  remain bound by 
      the  confidentiality and  use obligations  of this  Agreement as  to any
      Confidential Data obtained through this Agreement.

7.2   Ownership of Confidential Data: Except as otherwise provided for in this
Article, all Confidential Data produced as a result of a joint operation shall
be  the joint property  of all Participating  Parties in that  operation.  Any
Non-Participating Party shall have no rights in or access to Confidential Data
produced  or  derived  from  a  Non-Consent  Operation  unless and  until  the
provisions of Article 16 (Non-Consent Operations) are satisfied.

      7.2.1 Well Log and Data Trades: Any Participating  Party may propose the
      exchange or  trade  of any  jointly owned  Confidential  Data for  other
      similar data  and information owned by  a third party.   The approval of
      such  exchange  or  trade  shall   require  unanimous  approval  of  the
      Participating  Parties which own such data.  Upon approval of such trade
      by  the  Participating  Parties,  the  Operator  shall  consummate  such
      exchange or  trade with the  third party.   The Operator  shall promptly
      provide  all  Participating  Parties  copies of  the  third  party  data
      obtained along with copies of any agreement relating to such exchange.

      7.2.2 Ownership of  Non-Consent Data:  When the Non-Participating  Party
      becomes a Participating Party in the operation, as provided herein, such
      non-consent Confidential  Data and information previously  withheld from
      such Non-Participating  Party shall  thereafter become jointly  owned by
      the Party.

7.3   Access  to the  Lease  and Rig:  Each  Participating Party's  authorized
representatives  shall have access  to any drilling  rig, Production System or
Facility serving a Contract  Area to observe and inspect operations  and wells
in which it participates (and the records and other  data pertaining thereto).
Access by the Participating  Party to any  drilling rig, Production System  or
Facility serving  a  Contract Area  shall  be  arranged through  the  Operator
twenty-four (24)  hours in advance (or,  if conditions do not  permit, as much
advance notice as is reasonably possible).  Each Party's access will be at its
sole risk  and expense and at  reasonable times and provided  such access does
not unreasonably interfere with the operations being conducted.

7.4   Development of Proprietary Information and/or Technology: The ownership,
use, treatment and disclosure of any proprietary information and/or technology
specific to drilling  technology, production technology,  production structure
and Facilities and their transportation and installation, pipelines, flowlines
and offshore oil and gas transportation which are charged to the joint account
shall be handled in accordance  with Exhibit "G" (Integrated Project  Team and
Technology Sharing).

7.5   News Releases: The Parties  shall use reasonable efforts  to unanimously
agree upon  the timing and  content of releases  to the news  media concerning
operations covered  by this  Agreement.   However,  in the  event the  Parties
cannot unanimously  agree upon  either the timing  and/or content of  the news
release within thirty (30) days of receipt of such proposed news release, then
such  timing  and/or  content  shall require  approval  as  a  General Matter.
Failing General  Matter approval of a  news release, such news  release may be
prepared in accordance with Exhibit "F" (News Release Guidelines).

                                   ARTICLE 8
                          VOTING, ELECTIONS & NOTICES

8.1   Overall  Supervision of Business Affairs:  The activities of the Parties
under this Agreement that are not within the scope of the Operator's authority
to unilaterally decide  under Article 5.0 (Rights  and Duties of  Operator) or
Article  6.2  (Authorization  for  Expenditure)  shall  be  divided  into  the
following broad classes: 

      (1)   "General Matters" for which a vote for  approval is required prior
            to action, but no accompanying Election regarding participation is
            required (an  example of such a General Matter is a well log trade
            proposed and approved under Article 7.2.1), or;

      (2)   Proposed operations  for  which both  a  vote  for approval  as  a
            General    Matter   and   an   accompanying   Election   regarding
            participation are required prior  to conducting the operation. (An
            example  of such a  General Matter is  an Appraisal Well proposed,
            approved and elected upon under Article 1 1. 1), or;

      (3)   Proposed  operations for which  a vote  for approval as  a General
            Matter is  not  required  and where  only  an  Election  regarding
            participation is required for such  operation. (An example of such
            an  operation  is  an  Election  for  a Fabrication  AFE  proposed
            pursuant to  a previously approved Development  Plan under Article
            12.8 (Fabrication AFE) without  the requirement for approval as  a
            General Matter).

The  Parties  shall decide  and  take  action  upon all  General  Matters  and
Elections in accordance with the provisions of this Article 8.0.

8.2   Voting Procedures on  General Matters and Elections:  Any General Matter
shall require the  approval of the Parties and  shall be decided by a  vote of
the Parties as follows:

      8.2.1 Voting Interest: Each Party shall have a  voting interest equal to
      its  Working Interest  in a  Contract Area  or, with  respect to  a Non-
      Consent  Operation, its  Participating  Interest in  such operation,  as
      applicable.

      8.2.2 Vote  Required:  The  Parties  shall attempt  to  reach  unanimous
      agreement   regarding  proposals  requiring  approval  of  the  Parties.
      However, in the event that the Parties cannot unanimously agree, (except
      as  otherwise provided  in this  Agreement), a  General Matter  shall be
      decided by an affirmative vote of either:

            (a)   should  there be only  two (2)  Parties to this  Agreement a
                  General Matter approval shall  require mutual consent of the
                  Parties,  except  as  to   any  of  the  following  proposed
                  operations  (as to  which  such operations  will require  an
                  Election  by the  Parties  rather than  requiring the  prior
                  approval by the Parties as a General Matter)

                        Exploratory Operations (Article 10),
                        Appraisal Operations (Article 11), or
                        Development Operations (Article 13).

            (b)   should there be three (3) or more Parties to this Agreement:

                        affirmative  vote of two  (2) or  more of  the Parties
                        having  a combined  voting  interest of  sixty percent
                        (60%) or more.

      Each Party who  voted to  approve the General  Matter shall execute  the
      accompanying AFE evidencing its Election to participate in  the approved
      proposal if an Election is necessary (i.e., proposal included AFE).  For
      General Matters  where an AFE is  not required with a  proposal, a Party
      shall evidence  its vote for  approval in writing.   A Party  failing to
      vote,  or respond timely  to a General  Matter, shall be  deemed to have
      voted against the proposal.

      8.2.3 Second Opportunity  for an  Election: Upon  approval of  a General 
      Matter which requires an  Election (e.g., proposal, including  AFE), any
      Party  who either: (i)  voted against  the proposal;  or (ii)  failed to
      vote; shall have forty eight (48) hours (exclusive of Saturdays, Sundays
      and  federal holidays) from receipt  of notice from  the Operator that a
      General Matter has been approved, to  respond with an Election as to its
      participation in  the proposal.  Failure  to respond in a  timely manner
      shall be deemed an Election not to participate.  When a drilling  rig is
      on location and standby charges are accumulating, the time permitted for
      such  a response shall  not exceed forty-eight  (48) hours (inclusive of
      Saturday, Sunday or legal holidays).

8.3   Response Time for General Matters and Elections: After receipt of notice
pursuant to this Article 8, the Parties shall either: (i) submit their vote in
response to a General Matter  proposal as described under Article 8.  1 (1) or
(2),  or (ii) make  an Election if the  proposal does not require  a vote as a
General  Matter as  described under  Article 8.1(3).  The Operator  shall give
prompt  notice of  the results  of  such voting  or Elections  to each  Party.
Unless specified otherwise herein, the  response times required for each  type
of proposal shall be as follows:

      8.3.1 Well Operation Proposal: When any proposed well operation does not
      require construction of  a Production System,  each Party shall  respond
      with their vote or Election within thirty (30) days after receipt of the
      proposal.   When a drilling rig  is on location and  standby charges are
      accumulating, a vote or an Election in response to the proposal shall be
      made  within forty-eight  (48)  hours  after  receipt  of  the  proposal
      (exclusive of  Saturdays, Sundays  and federal holidays);  provided that
      the  forty-eight (48)  hour provision  of this  Article 8.3.1  shall not
      apply  to  a new  well  (other than  a substitute  well)  proposed under
      Articles 10.2  (Proposal of  Exploratory Operations), 11.1  (Proposal of
      Appraisal Operations) or 13.1 (Proposal of Development Operations).

      8.3.2 Production   System   Construction:   Elections   involving    the
      construction  and installation  of a Production  System shall  require a
      response within  one  hundred twenty  (120) days  after  receipt of  the
      Fabrication AFEs.

      8.3.3 Other AFE Related Operations: Except as otherwise provided  for in
      Articles 8.3.1  (Well Operation  Proposal) and 8.3.2  (Production System
      Construction), the  response time  to a  proposed operation will  depend
      upon  the AFE  gross  expenditure amount.    Response times  will be  as
      follows:

      (a)   AFE of $200,000 or more but less than $20,000,000 response will be
            made within thirty (30) days after receipt of said proposal.

      (b)   AFE of $20,000,000 or more but less than $50,000,000 response will
            be made within ninety (90) days after receipt of said proposal.

      (c)   AFE of  $50,000,000  or more  response  will  be made  within  one
            hundred twenty (120) days after receipt of said proposal.

      8.3.4 Other Proposals:  For all  other proposals requiring  notice, each
      Party shall
      respond  with an Election or vote within  thirty (30) days after receipt
      of the proposal.

      8.3.5 Failure to Respond: Failure of any Party to respond to  a proposal
      within  the required  period shall  be deemed a  vote against  a General
      Matter (if required by the nature  of the proposal) and, if  applicable,
      an Election not to participate.

      8.3.6 Suspensions of Production: Anything  in this Article 8.3 (Response
      Time  for  General Matters  and Elections)  notwithstanding, if  the MMS
      grants  a  Suspension  of  Production  (an  "SOP")  or a  Suspension  of
      Operations (an  "SOO") for  all  or any  part of  the Contract  Area(s),
      shorter time  limits  set forth  as requirements  of  the SOP/SOO  shall
      supersede the longer time periods for a Party's Election as provided for
      under this Agreement.

      8.3.7 Standby Charges:  The Participating  Parties in a  prior operation
      shall  be responsible  for  standby charges  accrued  until all  Parties
      having  a right to do so, have made an election to either participate or
      not participate in a subsequent proposed operation.  All standby charges
      accruing after the final election regarding the subsequent operation has
      been made, shall be the  responsibility of the Participating Parties  in
      the subsequent operation.

8.4   Meetings of the Parties: In addition  to the annual meeting required  by
Article 6.7 (Annual  Operating Plan), meetings of the Parties  shall be called
by the Operator upon its own motion or at the request of any Party.  Except in
the case of emergency, or except when agreed by unanimous  consent, no meeting
shall be  called on less than  ten (10) days (exclusive  of Saturdays, Sundays
and federal  holidays) advance notice, and such notice shall include an agenda
of the meeting.  The representative of the Operator  shall be chairman of each
meeting and shall  take minutes of each meeting.  Only  matters set out in the
agenda for the meeting shall  be considered at the meeting unless  unanimously
agreed to by all the Parties to this Agreement.

8.5   Designation  of   Representatives:  The  names  and   addresses  of  the
representatives who  are  authorized to  represent and  bind  each Party  with
respect to voting on General Matters  or Elections hereunder, are set forth in
Article IV of Exhibit "A-2"  attached hereto.  The designated  representatives
may  be changed  by written  notice to  the other  Parties in  accordance with
Article 8.7 (Giving and Responding to Notices).

8.6   Elections: An Election  to participate in  an Exploratory Operation,  an
Appraisal  Operation or a  Development Operation shall  include an Election to
participate in  all necessary expenditures  for drilling, testing,  logging to
the  Objective Depth (including  plugging/abandonment) as set  out in the Well
Plan.  An Election to participate in a Development Well shall  also require an
Election to participate in all necessary expenditures through the installation
of the wellhead if set forth in the Well Plan.

8.7   Giving and Responding to Notices:  All notices and responses  (including
notices/proposals of General Matters, Elections) shall be  made in writing and
delivered  to   the  designated  representative  in  person  or  by  facsimile
transmission  (followed  by  a  phone call  confirming  receipt),  U.S.  mail,
overnight express or courier.  When a drilling rig is on location  and standby
charges  are  accumulating,  all  notices  and  responses  shall be  given  by
telephone  and immediately confirmed  in writing.   Any notices  and responses
shall be  effective only  when  received by  the Party  to  whom such  notice,
proposal  or response  is directed.   Any  notice or  response transmitted  by
facsimile shall be  deemed given and received  only after the receiving  Party
has  confirmed receipt of such facsimile.   Any notice or response transmitted
by overnight express or courier shall be deemed given and received twenty-four
(24) hours (exclusive of Saturdays,  Sundays and federal holidays) after  such
notice or response  is deposited or  transmitted.  Any  notice or response  by
U.S. mail  (other than overnight express)  shall be deemed given  and received
five  days (exclusive of  Saturdays, Sundays  and federal holidays)  after the
notice or response is deposited in the mail.

8.8   Content of Notice:  Any notice which requires  a response within  a time
period shall  indicate which of  the response  times specified in  Article 8.3
(Response Time  for General Matters and  Elections) is required.   If a notice
proposes a well operation, the notice shall include the following information  

      (a)   the  type of  well  operation being  proposed, i.e.,  Exploratory,
            Appraisal or DevelopmentOperation(s);

      (b)   the Well Plan for the proposed operation; and

      (c)   an AFE showing the estimated Costs of the operation, including all
            necessary expenditures associated  with the drilling, testing  and
            completing or abandoning the well.

                                   ARTICLE 9
                            GEOPHYSICAL OPERATIONS

9.1   Geophysical  Operations: Any  Party may  propose  to acquire  or process
geophysical surveys (other  than shallow hazard  surveys, velocity surveys  or
other  similar  well  bore  geophysical operations)  to  evaluate  all  or any
portion(s) of the Contract Area at any time during the term of this Agreement.
These  geophysical  surveys may  consist  of  either conducting  "proprietary"
surveys,  purchasing 'speculative"  surveys from  vendors or  participating in
"group shoot" surveys.  Geophysical  Operations are independent operations and
are not to be considered Exploratory, Appraisal or Development Operations, and
may  be conducted  simultaneously with  Exploratory, Appraisal  or Development
Operations.

      9.1.1 Conduct of Proprietary Geophysical  Operations: The Operator shall
      conduct  all proprietary  geophysical  surveys (or  processing) for  the
      joint   account  of   the   Participating  Parties   based  upon   their
      Participating  Interest share of the Costs of the surveys.  The Operator
      shall  provide the Participating  Parties with copies  of all field data
      and  support documentation as  appropriate for any  and all seismic data
      collected  from the geophysical  survey.  The  Operator shall obtain all
      licenses  and/or permits  from  all governmental  agencies necessary  to
      support the surveys.  The joint ownership of any proprietary geophysical
      data  derived from  a proprietary survey  shall be limited  to the field
      tapes i.e., raw data and initial processing  (not including re-processed
      or   interpreted  data)  and   owned  on  the   basis  of  the  Parties'
      Participating Interests  in  the survey.   If  the  geophysical data  is
      acquired by  a geophysical contractor  instead of through  the Operator,
      then wherever in this  Article the word "Operator"  appears "Contractor"
      shall be substituted therefor.  If  a Party elects not to participate in
      a proprietary geophysical survey, then a Participating Party shall elect
      to either: (i) proceed with the Geophysical  Operation with the interest
      of the  Non-Participating Party shared  by the Participating  Parties on
      the  basis  of  their  respective Working  Interests,  unless  otherwise
      agreed, or (ii) change its Election to become a Non-Participating Party.
      A Non-Participating Party shall not be entitled  to any geophysical data
      obtained  from  the  proprietary  geophysical  survey  unless  the  Non-
      Participating Party agrees to become an underinvested Party per terms of
      Article  16.5.3 (Geophysical  Operations, Feasibility  Study, Integrated
      Project Team andlor Final Design AFE).

      9.1.2 Group-Shoot And  Speculative  Seismic Surveys:  The Parties  shall
      make a good faith effort to coordinate the acquisition of any new group-
      shoot or speculative seismic surveys covering one or more  of the Leases
      within the Contract  Area.  This shall enable all  Parties who desire to
      acquire such  data  to take  advantage  of  group or  partnership  rates
      available  from most  seismic contractors  and will  allow each  Party a
      license  to use  such  data.   For  such  joint  seismic data  purchases
      covering  the Leases-, the  acquiring Parties shall  mutually agree upon
      the Cost shares of the total licensing fee (rather than on their Working
      Interest shares).

                                  ARTICLE 10
                            EXPLORATORY OPERATIONS 

10.1  Application: The Costs, risks  and obligations of Exploratory Operations
conducted in accordance  with this Agreement shall be borne  by the Parties as
provided in Article 10.2.4 (Exploratory Operations Costs) below.

10.2  Proposal of Exploratory Operations: Any Party may  propose to conduct an
Exploratory  Operation  within  the  Contract Area  by  giving  notice  of the
proposal  (along with the associated AFE and  Well Plan) to all other Parties.
Each Exploratory Operation proposed shall require approval as a General Matter
except as  provided  in Article  8.2.2 (two  party  agreement) and/or  Article
10.3.5 (Subsequent Exploratory Operations If Not Approved as a General Matter)
and Article 16.4 (Non-Consent Operations to Maintain Contract Area).   Once an
Exploratory Operation  is  approved as  a  General  Matter, the  Operator  (or
substitute operator) shall commence the Exploratory Operation at the sole Cost
and risk  of the Participating  Parties.  Except  as provided in  Article 16.2
(Acreage Forfeiture  Provisions) and  Article 16.4 (Non-Consent  Operations to
Maintain  Contract  Area),  Costs  of  a  non-consent  Subsequent  Exploratory
Operation  will  be  recouped  in  accordance  with  Article  16  (Non-Consent
Operations).

      10.2.1      Well  Plan's  Minimum  Specifics:  The  Well  Plan  for  any
      Exploratory Well(s)  and any  proposed Subsequent Exploratory  Operation
      will include at least the following information:

      (a)   the surface and target bottomhole locations;

      (b)   the  expected spud  date  and the  anticipated  time necessary  to
            conclude   drilling,  evaluation  completion   and/or  abandonment
            operations;

      (c)   the  true vertical depth  to be drilled,  along with the specified
            Objective Depth (and other target zones to be penetrated);

      (d)   the proposed drilling plan, including  the casing program and  any
            anticipated Sidetracking operations;

      (e)   details of any  coring, logging or other  evaluation operations to
            be conducted; and

      (f)   information  concerning the drilling rig to be used, including day
            rates, water depth  rating and other  limitations relevant to  the
            drilling operations to be conducted.

      10.2.2      Pre-Spud   Technical  Meeting  &   Revision  of  Well  Plan:
      Subsequent  to the approval  of the  Exploratory Operation as  a General
      Matter, but prior to commencing such Exploratory Operation (other than a
      substitute operation), the Participating Parties shall  meet for a "Pre-
      Spud Technical  Meeting".  The purpose  of the meeting is  to review the
      Well Plan describing the specific operations planned for the Exploratory
      Well.  Any proposed revision to the operations specified in the original
      Well  Plan and AFE  shall require mutual  agreement of the Participating
      Parties.   Any such revision to the Well  Plan shall be evidenced by the
      joint  signature  of  an  amended  AFE  for  the  proposed   Exploratory
      Operation.   In the absence of  agreement upon a revised  Well Plan, the
      original Well  Plan and AFE shall  stand as approved.   Any revisions to
      the original Well  Plan or  AFE by the  Participating Parties shall  not
      give any  Non-Participating Party an  additional opportunity  to make  a
      Participation Election  unless the  Objective Depth is  changed, or  the
      target  bottom hole location is changed by  more than 500 feet, in which
      case  the Exploratory Operation shall  be proposed anew.   The Well Plan
      for an Exploratory Operation shall be deemed  automatically revised with
      each  Sidetracking,  Deepening   or  additional  Exploratory   Operation
      approved by the Participating Parties. 

      10.2.3      Timely Operation: A proposed Exploratory Operation  shall be
      commenced within one hundred eighty (180) days from  the date upon which
      it  is  approved.   Except as  a result  of  Force Majeure,  pursuant to
      Article  25.1 (Force  Majeure), if  operations have  not commenced  in a
      timely  manner,  the  approved  Exploratory Operation  shall  be  deemed
      withdrawn,  with the effect  as if  the Exploratory Operation  had never
      been approved.  If an approved Exploratory Operation is deemed withdrawn
      due  to lack of  timely commencement  of operations, any  Costs incurred
      during said one hundred eighty  (180) day period which are  attributable
      to the proposed operation shall still be chargeable to the Participating
      Parties.  An Exploratory  Operation shall be deemed to have commenced on
      the date  the rig  arrives  on location  or, if  the rig  is already  on
      location,  the date  when actual  drilling operations  for  the proposed
      Exploratory Operation are begun.

      10.2.4      Exploratory   Operations   Costs:  The   Costs,   risks  and
      obligations associated  with drilling, testing,  logging and  abandoning
      (whether  permanent or  temporary) an  Exploratory Well,  any substitute
      well  and any subsequent  Exploratory Operations  shall be borne  by the
      Participating Parties  in proportion to their  Participating Interest in
      such Exploratory Operation.

      10.2.5      AFE Overruns and Substitute  Well: The Operator shall timely
      commence  an Exploratory Operation  and continue the  operation with due
      diligence to the Objective Depth subject to (i) a supplemental AFE being
      required pursuant to Article 6.2 (Authorization for Expenditure) or (ii)
      the Operator encounters mechanical difficulties,  uncontrolled influx of
      subsurface water, abnormal pressures,  pressured or heaving shale, salt,
      granite or  other practicably  impenetrable substances or  other similar
      conditions   prevail  in   the   hole  that   render  further   drilling
      impracticable.    If  the  Exploratory  Well  is  abandoned due  to  the
      conditions  described  under  10.2.5  (ii), then  the  Operator  or  any
      Participating Party may propose a  substitute well (with the  associated
      AFE and  Well  Plan), and  each  Participating  Party in  the  abandoned
      Exploratory  Well shall make  an Election whether  to participate in the
      proposed substitute  well.   The proposal  for a  substitute Exploratory
      Well  shall not require approval as a  General Matter.  The Operator (or
      substitute Operator) shall commence the substitute well at the sole Cost
      and risk  of the Parties making  an Election to participate.   Any Party
      who makes an  Election not to  participate in either  (i) or (ii)  above
      shall be subject to the  provisions of Article 16.2 (Acreage  Forfeiture
      Provisions)  or  Article  16.5.1  (Non-Consent   Subsequent  Exploratory
      Operations)., if  such Election  is  made for  a non-consent  Subsequent
      Exploratory Operation.

10.3  Subsequent  Exploratory Operations  at  Objective Depth:  After (i)  the
Exploratory Well (or its substitute) has been drilled to its  Objective Depth,
(ii) all operations in the  controlling AFE and Well Plan have  been completed
or terminated  (except plug and abandon)  and (iii) all logs  and test results
have  been  distributed to  the  Participating  Parties, the  Operator,  shall
promptly notify the Participating Parties  of the Operator's proposal for  one
of the following operations:

      (a)   conduct Additional  Testing, Coring  or Logging of  the formations
            encountered prior to setting production casing;
      (b)   Sidetrack the well bore to core the formations encountered;
      (c)   Deepen  the well to  a new Objective  Depth (however,  if a casing
            string is  required  to Deepen  the well,  then  option "d"  shall
            precede Deepening the well);
      (d)   Sidetrack the well to another bottomhole location  not deeper than
            the stratigraphic equivalent of the original Objective Depth;
      (e)   conduct production testing;
      (f)   conduct other operations on the well not listed; 
      (g)   complete  the well  at Objective  Depth in  the objective  zone or
            formation;
      (h)   plug back the well and attempt a completion in a shallower zone or
            formation;
      (i)   temporarily abandon the well; or
      (j)   permanently plug and abandon the well.

      10.3.1      Response  to Operator's  Proposals: Within  forty-eight (48)
      hours  (exclusive  of Saturdays,  Sundays  and  federal holidays)  after
      receipt  of  Operator's  proposal  to  conduct  Subsequent   Exploratory
      Operations,  each Participating  Party shall  respond to  the Operator's
      proposal by making its Election to participate in Operator's proposal or
      by making  a  counterproposal.   Failure  of  a Participating  Party  to
      respond to a  proposal (except a proposal to plug  and abandon) shall be
      deemed  an Election not to participate in the Operator's proposal and to
      become a Non- Participating Party from that point.

      10.3.2      Counterproposals:  If   a   Participating  Party   makes   a
      counterproposal  for  Subsequent   Exploratory  Operations,  the   other
      Participating Parties shall have an additional twenty-four (24) hours to
      respond  to   all  counterproposals.    If   conflicting  proposals  for
      Subsequent Exploratory Operations are  made, preference for voting shall
      be given first to operation (a)  above, next to operation (b) above, and
      so forth.  If different depths or bottom hole locations are proposed for
      Subsequent  Exploratory Operations,  preference  shall be  given to  the
      shallowest depth (or the bottom hole location  nearest the existing well
      bore) and then  to other depths or  bottom hole locations  in descending
      (or  more distant)  order.   After a  decision to  conduct a  Subsequent
      Exploratory Operation  is made and the  Subsequent Exploratory Operation
      is  commenced, the  remaining proposals  for  other types  of subsequent
      Exploratory Operations shall be deemed withdrawn.   At the completion of
      the Subsequent  Exploratory Operation,  the Operator shall  again submit
      proposals)  for Subsequent  Exploratory Operations to  the Participating
      Parties, through the procedure provided  herein, until such time as  the
      well is plugged and abandoned.

      10.3.3      Approval  of  Subsequent   Exploratory  Operations  by   All
      Parties: If the proposed Subsequent Exploratory Operation is approved by
      all  then  Participating  Parties,   the  Operator  shall  commence  the
      Subsequent  Exploratory  Operation  at  the  Cost(s)  and  risk  of  the
      Participating Parties.

      10.3.4      Approval  of Subsequent Exploratory  Operations as a General
      Matter  by  Fewer  Than  All  Parties:  If  a  proposal  for  Subsequent
      Exploratory  Operations (except  a  proposal to  plug  and abandon),  is
      approved as  a  General Matter  by  fewer  than all  Parties,  then  the
      Operator (or  substitute Operator) shall  conduct the  operation at  the
      sole Cost and risk of the Participating  Parties.  Any Non-Participating
      Party in a Subsequent Exploratory Operation shall  be subject to Article
      16.5.1   (Non-Consent  Subsequent  Exploratory   Operations).    A  Non-
      Participating  Party  in a  Subsequent  Exploratory  Operation shall  be
      relieved  of  the  Costs,  risks  and  obligations  of  the   Subsequent
      Exploratory Operation, except  as to its share of  the Costs of plugging
      and abandoning the Exploratory Well  in its then current condition.   No
      operation  shall be performed on the well  unless deemed by the Operator
      to be  safe and the well bore is in  a condition to perform the proposed
      operation.

      10.3.5      Subsequent  Exploratory  Operations  If  Not  Approved  as a
      General Matter: If no proposed Exploratory Operation  (except a proposal
      to  plug and  abandon)  receives sufficient  vote to  be  approved as  a
      General  Matter  pursuant  to  Article 10.3.4  (Approval  of  Subsequent
      Exploratory Operations as a General  Matter by Fewer Than All  Parties), 
      then prior to an Exploratory Well being  plugged and abandoned, Operator
      (or substitute Operator) shall conduct at  the sole Cost and risk of the
      Participating Parties,  the  proposed Subsequent  Exploratory  Operation
      receiving the largest  percentage of Working  Interest approval, and  in
      the  event  of  tie vote  between  two  (2)  or  more of  such  proposed
      Subsequent Exploratory Operations, then  preference shall be given first
      to  operation (a)  then (b)  and  so on,  as set  forth in  Article 10.3
      (Subsequent  Exploratory  Operations  at  Objective Depth).    Any  Non-
      Participating Party  in such  Subsequent Exploratory Operation  shall be
      subject to Article 16  (Non-Consent Operations).  Such Non-Participating
      Party  shall  be  relieved of  the  Costs,  risk and  obligation  of the
      Subsequent Exploratory Operation, except as to its share of the Costs of
      plugging  and  abandoning  the  Exploratory  Well  in  its  then-current
      condition.  No operation shall be performed on the well unless deemed by
      the Operator to be safe and  the well bore is in a condition  to perform
      the operation.

10.4  Plugging and Abandoning Costs: Upon the conclusion of all operations set
forth in an Exploratory Operation's  Well Plan and all Subsequent  Exploratory
Operations on such well or if the  Operator encounters mechanical difficulties
or impenetrable  conditions, which  make further drilling  impracticable, then
the Operator may propose to plug  and abandon the well.  Upon approval  of the
well abandonment as  a General Matter by the Participating  Parties or failing
General Matter approval, the Operator deems the well bore not to be safe or in
a  condition to perform  further operations,  the Operator shall  commence the
plugging  and abandonment  of  the well.    The Participating  Parties  in the
original  operation  shall  pay  all  Costs  of  plugging and  abandoning  the
Exploratory  Well   (except  any  increased  plugging   and  abandoning  Costs
associated solely with a Subsequent Exploratory Operation  conducted as a Non-
Consent  Operation).  The  Participating Parties in  any Non-Consent Operation
shall  be  responsible   for  the  increased  plugging  and  abandoning  Costs
attributable to the Non-Consent Operation.

10.5  Conclusion of Exploratory Operations: Exploratory Operations shall cease
in  any Contract Area  after the abandonment of  the Exploratory Well, whether
permanent or temporary, and the  release of the rig from the  Exploratory Well
(including any substitute well).

10.6  Subsurface Team: Within sixty (60) days after rig release of the Initial
Exploratory Well, unless otherwise mutually  agreed, the Parties shall form  a
subsurface  team.    The  subsurface  team  will  include  at  least  one  (1)
representative from  each of the Parties.  Each Party shall be responsible for
designating  its  representative(s)  for  the  subsurface  team.    A  Party's
representatives  for the  subsurface team  may be  changed at  any time.   The
salaries,  burdens,   benefits,  other  compensation  and   expenses  of  each
subsurface team member shall be  the responsibility of the Party employing  or
providing  the  subsurface team  member.   The  Operator  shall  serve as  the
coordinator for the subsurface team.  Members of the subsurface team will work
independently  at  office locations  provided  by the  Party  designating such
member.  The responsibilities of the  subsurface team shall include but not be
limited to the following items:

      making recommendations for Exploratory  Well(s) in other Contract Areas,
      making  recommendations for  Appraisal Operations,  evaluating potential
      Producible  Reservoirs  within a  Contract  Area(s),  and; advising  the
      Integrated Project  Team regarding subsurface matters  so the Integrated
      Project Team can more effectively assist the Operator in the preparation
      of the Development Plan pursuant to Article 12 (Development Plan).

      The  subsurface team will  meet as it  deems necessary to  carry out the
above  activities.   Once the  subsurface team  is formed,  it will  remain in
existence until the expiration or dissolution of the Contract Area. 

                                  ARTICLE 11
                             APPRAISAL OPERATIONS

11.1  Proposal  of  Appraisal  Operations:  After  completion  of  Exploratory
Operations any Party  may propose to conduct an Appraisal Operation within the
Contract Area  by giving notice of the proposal (along with the associated AFE
and Well Plan) to all other Parties.  Each Appraisal  Operation proposed shall
require approval as a General Matter.  Once an Appraisal Operation is approved
as a General Matter, the Operator (or substitute Operator) shall commence  the
Appraisal Operation  at the sole Cost  and risk of  the Participating Parties.
Costs of a Non-Consent Appraisal Operation will be recouped in accordance with
Article 16 (Non-Consent Operations).

      11.1.1      Well  Plan's  Minimum  Specifics:  The  Well  Plan  for  the
      Appraisal  Operation shall include  at least  the information  set forth
      under Article 10.2.1 (Well Plan's Minimum Specifics).

      11.1.2      Pre-Spud Technical Meeting & Revision of Well Plan: The Pre-
      spud  Technical  Meeting  &  Revision  of  the  Well  Plan shall  be  in
      accordance with Article 10.2.2 (Pre-Spud Technical Meeting & Revision of
      Well Plan).

      11.1.3      Timely Operation:  A proposed  Appraisal Operation  shall be
      commenced within one hundred eighty (180) days from  the date upon which
      it is approved.  Except as a result of Force Majeure  (Article 25.1), if
      operations have not commenced in a timely manner, the approved Appraisal
      Operation shall be deemed withdrawn, with the effect as if the Appraisal
      Operation  had never been approved as a  General Matter.  If an approved
      Appraisal   Operation  is  deemed  withdrawn  due   to  lack  of  timely
      commencement of operations,  any Costs incurred during said  one hundred
      eighty (I80) day period which are attributable to the proposed operation
      shall  still be chargeable  to the Participating  Parties.  An Appraisal
      Operation for  the drilling of an Appraisal Well shall be deemed to have
      commenced  on the date  the rig arrives  on location  or, if the  rig is
      already on location, the date when actual drilling operations are begun.

      11.1.4      AFE Overruns and Substitute  Well: The Operator shall timely
      commence  an Appraisal  Operation  and continue  the operation  with due
      diligence to the  Objective Depth, subject to (i) a  supplemental AFE is
      required pursuant to Article 6.2 (Authorization for Expenditure) or (ii)
      the Operator encounters mechanical difficulties,  uncontrolled influx of
      subsurface water, abnormal pressures,  pressured or heaving shale, salt,
      granite or  other practicably  impenetrable substances or  other similar
      conditions   prevail  in   the   hole  that   render  further   drilling
      impracticable.  If the Appraisal Well is abandoned due to the conditions
      described  under  11.1.4 (ii),  then the  Operator or  any Participating
      Party may propose  a substitute well  (with the associated AFE  and Well
      Plan), and each Participating Party in the abandoned Appraisal Well will
      make an Election whether to participate in the proposed substitute well.
      The Operator (or substitute Operator) shall commence the substitute well
      at  the  sole  Cost  and  risk of  the  Parties  making  an  Election to
      participate.  Costs of a Non-Consent substitute well will be recouped in
      accordance with Article 16 (Non-Consent Operations).

11.2  Subsequent  Appraisal  Operations  at  Objective Depth:  After  (i)  the
Appraisal  Operation  has  been  drilled  to  its  Objective Depth,  (ii)  all
operations in  the  controlling AFE  and  Well  Plan have  been  completed  or
terminated (except plug and abandon) and (iii) all logs and  test results have
been distributed  to the Participating  Parties, the Operator,  shall promptly
notify the Participating Parties (and Non-Participating Party(ies) in the case
of  a  proposal under  11.2  (c) and  (d),  if applicable)  of  the Operator's
proposal for one of the following operations: 

      (a)   conduct Additional  Testing, Coring  or Logging of  the formations
            encountered prior to setting production casing;
      (b)   Sidetrack the well bore to core the formations encountered;
      (c)   Sidetrack the well  to another bottomhole location not deeper than
            the stratigraphic equivalent of the original Objective Depth;
      (d)   Deepen the well to a new Objective Depth;
      (e)   conduct production testing;
      (f)   complete the well at the Objective Depth in the  objective zone or
            formation;
      (g)   plug back the well and attempt a completion in a shallower zone or
            formation;
      (h)   conduct other operations on the well not listed;
      (i)   temporarily abandoning the well; or
      (j)   permanently plug and abandon the well.

      11.2.1      Response  to Operator's  Proposals: Within  forty-eight (48)
      hours  (exclusive  of Saturdays,  Sundays  and  federal holidays)  after
      receipt  of   Operator's  proposal   to  conduct   subsequent  Appraisal
      Operations, the  Participating Parties  shall respond to  the Operator's
      proposal by  making  its Election  to Operator's  proposal  or making  a
      counterproposal.   Failure  of a  Participating Party  to  respond to  a
      proposal (except  a proposal  to plug  and abandon)  shall be deemed  an
      Election not to  participate in the Operator's proposal and  to become a
      Non-Participating Party from that point.

      11.2.2      Counterproposals:   If  a   Participating   Party  makes   a
      counterproposal  for  a   subsequent  Appraisal  Operation,  the   other
      Participating Parties shall have an additional twenty-four (24) hours to
      respond to all counterproposals.  If convicting proposals for subsequent
      Appraisal  Operations are  made, preference  for  voting shall  be given
      first to operation (a) above, next to operation (b) above, and so forth.
      If different depths  or locations are proposed  for subsequent Appraisal
      Operations,  preference shall be  given to the  shallowest depth (or the
      location nearest  the  existing well  bore)  and  then other  depths  or
      locations  in descending (or  more distant) order.   After a decision to
      conduct  a subsequent  Appraisal Operation  is made  and the  subsequent
      Appraisal  Operation is  commenced,  the remaining  proposals for  other
      types of subsequent Appraisal Operations shall be  deemed withdrawn.  At
      the completion of the subsequent Appraisal Operation, the Operator shall
      again  submit proposal(s)  for  subsequent Appraisal  Operations to  the
      Participating Parties, through the procedure provided herein, until such
      time as the well is plugged and abandoned.

      11.2.3      Approval of Subsequent Appraisal  Operations by All Parties:
      If  the proposed subsequent  Appraisal Operation is  approved by all the
      then Participating  Parties, the Operator shall  commence the subsequent
      Appraisal  Operation  it  the  Cost(s)  and  risk  of the  Participating
      Parties.

      11.2.4      Approval of  Subsequent  Appraisal Operations  as a  General
      Matter by Fewer Than All Parties: If a proposal for subsequent Appraisal
      Operations (except  a proposal to  plug and abandon),  is approved  as a
      General  Matter  by  fewer  than  all  Parties,  then the  Operator  (or
      substitute  Operator) shall conduct  the operation at  the sole Cost and
      risk  of the Participating  Parties.   Any Non-Participating Party  in a
      subsequent  Appraisal Operation  shall  be subject  to Article  16 (Non-
      Consent  Operations).    A   Non-Participating  Party  in  a  subsequent
      Appraisal   Operation  shall  be  relieved   of  the  Costs,  risks  and
      obligations  of the  subsequent Appraisal  Operation, except  as to  its
      share of  the Costs of plugging and abandoning the Appraisal Well in its
      then-current  condition.  No  operation shall  be performed on  the well
      unless deemed by  the Operator  to be  safe and the  well bore  is in  a
      condition to perform the proposed operation. 

      11.2.5      Subsequent Appraisal Operations If Not Approved as a General
      Matter:  If no proposed  Appraisal Operation (except  a proposal to plug
      and abandon) receives sufficient vote to be approved as a General Matter
      pursuant to Article 11.2.4  (Approval of Subsequent Appraisal Operations
      as  a General  Matter  by Fewer  Than  All Parties),  then  prior to  an
      Appraisal  Well being  plugged  and abandoned,  Operator (or  substitute
      Operator) shall conduct at  the sole Cost and risk of  the Participating
      Parties,  the  subsequent  Appraisal  Operation  receiving  the  largest
      percentage of Working Interest  approval, and in  the event of tie  vote
      between  two (2)  or more  of such  proposed Appraisal  Operations, then
      preference shall be given first to operation  (a) then (b) and so on, as
      set forth in Article 11.2  (Subsequent Appraisal Operations at Objective
      Depth).    Any  Non-Participating  Party in  such  subsequent  Appraisal
      Operation shall be subject to Article 16 (Non-Consent Operations).  Such
      Non-Participating  Party  shall  be  relieved  of  the Costs,  risk  and
      obligation of the subsequent Appraisal Operation, except as to its share
      of the Costs of plugging and  abandoning the Appraisal Well in its then-
      current condition.  No  operation shall be performed on the  well unless
      deemed by the Operator to be safe and the well bore is in a condition to
      perform the operation.

11.3  Election  by  Non-Participating  Parties  in  Deepening or  Sidetracking
Appraisal  Operations:   If  an  Appraisal  Well  is  drilled to  its  initial
Objective Depth and does not appear to result in a well that will qualify as a
Producible Well, and if any Participating Party proposes to either  (i) Deepen
said Appraisal Well, or  (ii) Sidetrack said Appraisal Well,  then as provided
in  Article 11.2  (c) or  (d), the  Operator shall  notify each  original Non-
Participating Party of  the proposal.   Each original Non-Participating  Party
may respond with an Election regarding  such a proposal to Deepen or Sidetrack
by notifying  the  Operator of  its  Election  within forty-eight  (48)  hours
(exclusive of  Saturdays, Sundays  and federal  holidays) after receiving  the
Operator's notice.  Any original Non-Participating Party making an Election to
participate in the  Deepening or  Sidetracking of an  Appraisal Well shall  be
deemed to  be  underinvested in  an  amount equal  to its  share  of the  Cost
incurred  in such  Non-Consent Well  (including but  not limited  to drilling,
testing,  logging or  coring) prior to  such Deepening  or Sidetracking.   The
Parties that participated in  drilling to the initial Objective  Depth will be
deemed overinvested in  that amount, and all  Costs for operations  under this
Agreement  that   would  otherwise   be  allocated  proportionately   to  such
overinvested Parties shall be allocated to the underinvested Parties until all
overinvestments are  eliminated.  Any original  Non-Participating Party making
an Election to participate  in the Deepening  or Sidetracking of an  Appraisal
Well  shall remain  a Non- Participating  Party in  the Appraisal  Well to the
initial  Objective Depth until  the Costs  recoverable under Article  16 (Non-
Consent  Operations), less  any payments  through a  Disproportionate Spending
Settlement and/or Article 16.9 (Underinvestment of  Costs), have been recouped
by the original Participating Parties.

11.4  Deeper Drilling: A proposal to drill  an Appraisal Well to an  Objective
Depth below the deepest Producible  Reservoir penetrated by a Producible  Well
shall require approval as a General Matter and shall be further subject to the
following provisions.

      11.4.1      Limited Participation  in Deeper Drilling: If  a proposal is
      approved pursuant to Article 11.4 (Deeper Drilling) above, any Party may
      either:

            make an Election  to participate in  the proposed Deeper  Drilling
            operation; or make an Election not to  participate in the proposed
            Deeper Drilling operation;
            or
            make  an Election to  limit its  participation to drilling  to the
            base of the deepest Producible  Reservoir to be penetrated by  the 
            Deeper Drilling operation.

            A party making an Election to limit its participation in  a deeper
      Appraisal  Well to the  base of  the deepest Producible  Reservoir shall
      bear its Participating interest share of  the Cost and risk of  drilling
      (including abandonment) to the base of the deepest Producible Reservoir.
      If  a Party makes an Election not  to participate in the proposed Deeper
      Drilling, the proposed operations shall be conducted pursuant to Article
      16 (Non-Consent Operations).

      11.4.2      Multiple Completion Alternatives Above and Below the Deepest
      Producible Reservoir:  If a Non-Participating Party in a Deeper Drilling
      operation below the deepest Producible Reservoir:

            considers  the well  to be  capable of producing  at or  above the
            deepest Producible Reservoir, and
            has  indicated a  desire  to complete  the well  at  or above  the
            deepest   Producible  Reservoir,   any  further   Deeper  Drilling
            operations shall be conducted subject to the following provisions:

            (a)   Multiple Completion: If all the Participating Parties in the
                  well agree  that a  multiple well completion(s)  is possible
                  and  practicable  involving a  completion  at  or above  the
                  deepest Producible Reservoir and (ii) a completion below the
                  deepest Producible Reservoir,  the Participating Parties  in
                  the Deeper Drilling operation  shall bear 100% of the  Costs
                  of  drilling  to  an   Objective  Depth  below  the  deepest
                  Producible-e Reservoir  that are  in excess of  the original
                  Costs  to  drill  and  complete  the  well  in  the  deepest
                  Producible Reservoir.

            (b)   Single  Completions: If  the  Participating  Parties do  not
                  agree   that  multiple  well  completions  are  possible  or
                  practicable,  the  Non-Participating  Party  in  the  Deeper
                  Drilling  operation shall  be  deemed  overinvested  in  the
                  original well  in an  amount equal to  the Non-Participating
                  Party's Share of the original Costs of  drilling the well to
                  the deepest Producible Reservoir.  The Participating Parties
                  in  the   Deeper  Drilling  operation  shall   assume  their
                  proportionate share of  the Non-Participating Party's  Share
                  of  the  Costs  of  other operations  conducted  under  this
                  Agreement until all overinvestments are eliminated.

            If,  after having been  drilled to an  Objective Depth deeper than
      the  deepest  Producible  Reservoir,  at the  first  occurrence  of  the
      following events:

            (i)         the well is not a Producible Well in the deeper depths
                        and the well is plugged back  to a shallower zone; or,
            (ii)        the  well is  completed as  a Producible  Well in  the
                        deeper depths,  but  Hydrocarbon production  from  the
                        deeper  zone is  later  depleted prior  to Non-Consent
                        Recoupment (attributable to Deeper Drilling operation)
                        and the well is plugged back  to a shallower zone; or,
            (iii)       the  well  is completed  as a  Producible Well in  the
                        deeper   depth  and  the  Participating  Parties  have
                        recovered  the   applicable   Non-Consent  Recoupment
                        (attributable to the  Deeper  Drilling operation) from 
                        Hydrocarbon production from the deeper zone;

      the Participating Parties as to the depths  below the deepest Producible
      Reservoir shall be  deemed overinvested in an  amount equal to the  Non-
      Participating Party's  Share  of the  well's Cost  down  to the  deepest
      Producible Reservoir.   The overinvestment shall  be depreciated at  the
      rate of  one-half  percent (1/2%)  per month  from the  date the  Deeper
      Drilling operation  commences to the earlier of the date of (i), (ii) or
      (iii)  above, but such depreciation  shall not reduce the overinvestment
      below  forty percent (40.0%)  of the original  overinvestment.  The Non-
      Participating  Parties in  the  Deeper Drilling  operation shall  assume
      their proportionate  share of  the  Participating Party's  Share of  the
      Costs  of other  operations  conducted under  this  Agreement until  all
      overinvestments are eliminated.

      11.4.3      Completion  Attempts  At  or Above  the  Deepest  Producible
      Reservoir:  If a well  drilledbelow the deepest  Producible Reservoir is
      not completed for production in the deeperdepths, then the Participating
      Parties in said well down to the deepest Producible Reservoir shall have
      a  right to utilize the  well for completion  in a Producible Reservoir.
      The  Participating  Parties in  drilling  below  the deepest  Producible
      Reservoir  in said well  shall bear  the Costs (including  plugging back
      Costs) necessary to place the well in proper condition for completion in
      a Producible Reservoir.  If a well drilled below  the deepest Producible
      Reservoir is  damaged to  the extent that  it is  rendered incapable  of
      being  completed  and  produced  at  or  above  the  deepest  Producible
      Reservoir in that well, the Participating Parties in the Deeper Drilling
      operation shall  be obligated, at their  sole Cost and risk,  to restore
      the well to its condition prior to the  Deeper Drilling operations below
      the deepest  Producible Reservoir.    The Participating  Parties in  the
      Deeper  Drilling Operation shall be obligated to pay for the entire Cost
      of  redrilling the  well if  the damage  cannot be  repaired.   Both the
      Participating  Parties  in  the  original  drilling  operation  and  the
      Participating  Parties  in  the   Deeper  Drilling  operation  shall  be
      Participating  Parties  in  the  completion  attempt  in  the  shallower
      formation.

11.5  Plugging and Abandoning Costs: Upon the conclusion of all operations set
forth in  an  Appraisal Operations  Well  Plan  and all  subsequent  Appraisal
Operations on such well, or if the Operator encounters mechanical difficulties
or impenetrable  conditions, which  make further drilling  impracticable, then
the Operator may  propose to plug and abandon the well.   Upon approval of the
well abandonment as a General Matter  by the Participating Parties or  failing
General Matter approval, the Operator deems the well bore not to be safe or in
a  condition to perform  further operations,  the Operator shall  commence the
plugging  and abandonment  of  the well.    The Participating  Parties in  the
original  operation  shall  pay  all  Costs  of  plugging and  abandoning  the
Appraisal Well (except any increased plugging and abandoning Costs  associated
solely  with  a  subsequent Appraisal  Operation  conducted  as  a Non-Consent
Operation).  The Participating Parties  in any Non-Consent Operation shall  be
responsible for the  increased plugging and  abandoning Costs attributable  to
the Non-Consent Operation.

11.6  Feasibility Study:  Any  Party  may propose  a  feasibility  study  (the
conduct of such  proposal shall not require approval as  a General Matter) for
any technical,  engineering  or other  issues  affecting Appraisal  or  future
Development Operations  on a Contract  Area.   The proposal  of a  feasibility
study  shall not  cause  the formation  of  the Integrated  Project  Team.   A
feasibility study  may or may not require  a study team, will  be of a shorter
duration,  and will be more narrow in  scope than the Integrated Project Team.
The  process for  approving a  feasibility study  to be  charged to  the joint
account  is listed below,  however, any Party may  prepare its own feasibility
study at its sole cost.

      11.6.1      Feasibility  Study Proposal  and Meeting:  A proposal  for a
      feasibility study shall be accomplished  by a Party furnishing (1)  memo
      describing the scope of the feasibility study,  and (2) cost estimate of
      the feasibility  study to the  other Parties.   Within thirty  (30) days
      after the feasibility study proposal, the Operator  shall call a meeting
      of the Parties.  At such meeting, the Parties shall discuss and resolve:

            (a)   the  positions of  all Parties  on the  proposed feasibility
                  study,
            (b)   the necessity of the study,
            (c)   composition  and   organization  of   any  study  team,   if
                  applicable, associated with  the proposed feasibility study,
                  and
            (d)   any other related matter.

            The Operator may modify any proposal  for a feasibility study as a
      result  of such meeting.   Operator may,  within thirty  (30) days after
      such  meeting,  submit  to  the other  Parties  such  feasibility  study
      proposal along with an AFE for approval.

      11.6.2      Election on  Proposed Feasibility Study:  All Parties  shall
      notify the Operator  of their Participation Election  in the feasibility
      study within thirty (30) days after receipt of the AFE  for the proposed
      feasibility study.  If any Party makes an Election not to participate in
      the  feasibility study,  then each  Participating  Party shall  elect to
      either: (i) proceed with  the feasibility study with the interest of the
      Non-Participating Party shared by the Participating Parties on the basis
      of their respective Working Interests, unless otherwise  agreed, or (ii)
      change its Election to become  a Non-Participating Party.  The  Operator
      shall commence  the feasibility  study on  behalf  of all  Participating
      Parties.   A Party making an  Election not to participate  in a proposed
      feasibility study shall become a Non-Participating Party as to the costs
      of  the  feasibility study  and shall  be subject  to the  provisions of
      Article  16.5.3 (Non-Consent Geophysical  Operations, Feasibility Study,
      Integrated  Project Team andlor Final  Design AFE).  A Non-Participating
      Party  shall  not  receive  the  data,  information  or results  of  the
      feasibility  study until  satisfaction  of the  requirements of  Article
      16.5.3   (Non-Consent   Geophysical   Operations,   Feasibility   Study,
      Integrated Project Team and/or Final Design AFE).

      11.6.3      Costs  of  Feasibility  Study:   Costs  and  expenses  of  a
      feasibility study charged to the Joint Account shall include, but not be
      limited  to, any study  team formed  in connection with  the feasibility
      study, contract services  and related miscellaneous expenses.  All Costs
      and  expenses of the  feasibility study  shall be handled  in accordance
      with Exhibit "C" (Accounting Procedure).

11.7  Conclusion of Appraisal Operations: Any Party may propose that Appraisal
Operations have  been concluded on  the Contract  Area by notifying  the other
Parties.  Upon  such notification the  Parties shall meet  to determine, as  a
General Matter,  the conclusion of Appraisal Operations.   The formation of an
Integrated  Project  Team  shall  not  require  the  conclusion  of  Appraisal
Operations and may occur concurrently with Appraisal Operations.

                                  ARTICLE 12
                               DEVELOPMENT PLAN

12.1  Phased Development  Plans: The  results of Exploratory  and/or Appraisal
Operations  may justify the  development of one  or more Producible Reservoirs
within the Contract Area.  The Operator shall prepare for  the approval of the
Parties a Development Plan in order to pursue such development of the Contract
Area.   In  order to provide  for the  orderly preparation  of the Development
Plan, unless otherwise mutually  agreed by all the Parties,  the Parties shall
form  an  Integrated  Project  Team,  subject  to  Article 12.2  (Proposal  of
Integrated  Project Team),  whose duties  are more  specifically set  forth in
Exhibit  "G" (Integrated  Project Team  and Technology  Sharing) and  shall be
charged  with assisting the Operator in  the preparation of a Development Plan
and in  design, engineering,  fabrication, transportation and  installation of
the Initial Production System and Facilities.  In view of the Costs and  scope
of Development Operations for a Contract Area, the Parties may agree to divide
Development Operations  into  an initial  Development Phase  and  one or  more
subsequent Development Phases.  Each Development Phase  shall be centered upon
the installation of a new  or expanded Production System for a  Contract Area.
A separate Development Plan shall be prepared  for each Development Phase, and
each Development Plan shall be developed, approved and implemented pursuant to
this Article 12 (Development Plan).

12.2  Proposal  of  Integrated  Project  Team:  The  Operator  shall have  the
exclusive  right to  submit a  proposal for  the formation  of the  Integrated
Project Team during the first  twelve (12) month period following rig  release
for  an  Exploratory Well  on  any of  the  Contract  Areas.   However,  if an
Appraisal Operation  is approved by the  Parties as a General  Matter prior to
the proposal for  the formation of the Integrated Project Team, the Operator's
exclusive proposal period shall be extended until twelve (12) months after rig
release of the last approved Appraisal Operation on any of the Contract Areas.
If Operator  fails to propose  the formation  of the  Integrated Project  Team
during  its  exclusive  proposal  period(s),  then,  after  expiration of  the
Operator's exclusive proposal  period(s), any Party may propose  the formation
of the Integrated Project Team.

12.3  Integrated  Project Team Election:  A proposal for  the formation of the
Integrated Project Team  shall not require  the approval of  the Parties as  a
General Matter.   Each Party shall have an Election as to its participation in
the AFE  for the Integrated Project Team, pursuant to Article 8.3.3 (Other AFE
Related  Operations).   The  formation  and administration  of  the Integrated
Project Team  shall  be handled  in accordance  with  Exhibit "G"  (Integrated
Project Team and Technology Sharing) with the Costs of  the Integrated Project
Team being charged  in accordance with Exhibit "C"  (Accounting Procedure).  A
Party  which makes  an Election not  to participate in  the Integrated Project
Team shall  become a Non-Participating Party as to the costs of the Integrated
Project Team  and shall be subject  to the provisions of  Article 16.5.3 (Non-
Consent  Geophysical Operations,  Feasibility Study,  Integrated  Project Team
andlor Final  Design AFE).  A Non-Participating Party shall not have access to
the data or studies prepared by the Integrated Project Team until satisfaction
of  the requirements  of Article  16.5.3 (Non-Consent  Geophysical Operations,
Feasibility Study, Integrated Project Team andlor Final Design AFE).

12.4  Proposal  of a Development  Plan: The Operator  shall have the exclusive
right  for  a  period  of  eighteen (18)  months  from  the  formation  of the
Integrated Project  Team to  submit  a Development  Plan  for the  review  and
approval of the  Parties, such proposed Development Plan to  be based upon the
work and  recommendations of  the Integrated  Project Team.   If  Operator has
begun preparation of a Development Plan during the first twelve (12) months of
the eighteen (18) month period, but the Development Plan will not be completed
and submitted  by the end of the Operator's exclusive period, the Operator may
request  an extension of the exclusive period  to allow completion of the work
in progress.  Any request for extension shall include a report of the progress
to date and  specify a date  for submission of  the Development Plan not  more
than six  (6) months from  the expiration of the  exclusive submission period.
The  Parties  shall  not  arbitrarily or  unreasonably  refuse  a  request for
extension of  the Operator's submission period.  If the Parties mutually agree
not  to form  an Integrated  Project Team,  then the  Operator shall  have the
exclusive right  to propose  a Development  Plan for a  period of  twelve (12)
months  following  completion  of  the  Exploratory  Operations  or  Appraisal
Operations, whichever is later.

      12.4.1      Alternative Development Plans: If  a Development Plan is not
      timely  submitted by the  Operator or the  Development Plan submitted by
      the Operator is  not approved pursuant  to Article  12.6 (Approval of  a
      Development Plan) or 12.6.1 (Amended Approval Requirementfor Development
      Plans)  below,  then  any  Party  shall have  the  option  to  submit  a
      Development Plan.   Development Plans  proposed after expiration  of the
      Operator's  exclusive period  shall be  considered  for approval  by the
      Parties in the order in which the Development Plans are submitted.

12.5  Content  of the Development  Plan: Any  Development Plan  proposed under
this  Agreement  shall  contain  sufficient detail  to  allow  the  Parties to
adequately  evaluate the  scope, timing,  Costs and  capacity of  the proposed
Development Plan and Production System.  All Development Plans submitted shall
include at least the following information:

      (a)   Initial Production System:  Description of the  Initial Production
            System including:

            (i)         the type of Production System proposed  (i.e., tension
                        leg  well jacket,  floating production  system, etc.),
                        including    the    Production   System's    location,
                        configuration (i.e.,  number of  well slots  or subsea
                        tiebacks) and production capacity;
            (ii)        a  description   of  the  Facilities,   including  the
                        gathering  and pipeline system  necessary to transport
                        the Hydrocarbons from the well heads to shore;
            (iii)       a projected time schedule for  designing, contracting,
                        Fabricating,   constructing,   transporting   and
                        installing;
            (iv)        the estimated date  of initial Hydrocarbon  production
                        and the estimated daily rate of Hydrocarbon production
                        thereafter; and,
            (v)         the estimated  Costs of  the Production System  not in
                        the form of an AFE;

      (b)   Producible Reservoirs:  A description of  the Hydrocarbon  bearing
            geological  formations   expected  to   be  developed   under  the
            Development Plan along with the general area and depth of sands or
            reservoirs to be developed by the Production System;
      (c)   Recoverable Reserves: An estimated  range of recoverable  reserves
            for the proposed Development Plan;
      (d)   Predrilling  Operations: A  reasonable description  of predrilling
            operations,  if  any, planned  in  support  of later  development,
            including  an estimate of  the timing,  Cost and location  of each
            predrilling operation;
      (e)   Development  Wells:  A  reasonable  description  of  drilling  and
            completion plans for all  Development Wells, including an estimate
            of the timing, Cost and location of each well.
      (f)   Other  Data: Provided  such  information is  available, any  other
            information reasonably  necessary to perform an  evaluation of the
            technical  and  economic  feasibility of  the  Initial  Production
            System provided for in the Development Plan.

12.6  Approval of a  Development Plan: The Operator shall have four (4) months
to obtain unanimous approval of the  Parties for any Development Plan proposal
submitted by  the Operator during  its exclusive  period.  If  either (i)  the
Operator  fails to  gain the  unanimous approval  of the  Parties or  (ii) the
Operator fails to  submit a Development Plan, the Parties  shall have a period
of  four (4)  months commencing with  either the expiration  of the Operator's
exclusive  period  or  the failure  to  obtain  approval in  which  either the
Operator's   Development  Plan  or  an  alternate   Development  Plan  may  be
unanimously approved by the Parties.

      12.6.1      Amended  Approval Requirement  for  Development Plans:  If a
      Development Plan  is  not unanimously  approved upon  conclusion of  the
      eight (8) month period provided in Article 12.6 (Approval of Development
      Plan)  above, then  the  unanimous agreement  requirement, provided  for
      under Article 12.6 (Approval of a Development Plan) shall  be amended to
      provide:

      (i)   during  this  amended approval process, consideration for approval
            by  the  Parties  shall  be  given first and simultaneously to any
            previously proposed Development Plan;
      (ii)  for a twelve (12) month  period following expiration of the eight
            (8) month period, approval of a Development Plan shall be by  the
            Parties as a General Matter.  No new alternative Development Plan
            shall be submitted  during the last six (6) months of this twelve
            (12) month period; and
      (iii) if a Development Plan is not approved, as a General Matter, during
            this twelve (12) month period, then the  Development Plan shall be
            approved according to the following

            a)    If  there is only  one Development  Plan submitted  and such
                  Development Plan  receives an  affirmative vote of  at least
                  fifty percent (50%) of the voting interest, such Development
                  Plan shall be deemed approved by the Parties;

            b)    If there are two (2) or more Development Plans submitted and
                  one  Development Plan  receives  an affirmative  vote of  at
                  least fifty  percent (50%)  of the  voting interest and  the
                  other Development  Plan(s) receives  an affirmative  vote of
                  less than fifty percent (50%)  of the voting interest,  then
                  the Development  Plan receiving  the affirmative vote  of at
                  least fifty  percent (50%) of  the voting interest  shall be
                  deemed approved by the Parties;

            c)    If   two  competing  Development   Plans  each   receive  an
                  affirmative vote of fifty percent (50%) voting interest, the
                  Parties will  use reasonable efforts to  diligently pursue a
                  compromise Development Plan.

12.7  Final Design  AFE: Within six (6)  months from the date  the Development
Plan is approved as provided in Article 12.6 (Approval of a Development Plan),
Operator shall  submit to all  Parties the  Final Design AFE  for the  Initial
Production  System for their Election.  Such  Final Design AFE shall include a
cost estimate  for design which  shall include both  the cost of  Operator and
Non-Operator  staff  time (including  Affiliate  employees)  and  the cost  of
contract labor and services for the design and testing necessary to adequately
define the system for  the bidding of Fabrication.   The Final Design AFE  may
also include the cost of long-delivery equipment items which must be purchased
before the  start of Fabrication and construction.  Operator may provide other
additional documents as necessary to allow the  Parties to adequately evaluate
the Final Design AFE.

      12.7.1      Response to Final Design AFE: Each Party shall respond as to
      its Election in the Final  Design AFE proposal within the time  frame as
      described in Article 8.3.3 (Other AFE  Related Operations).  If all  the
      Parties make  an Election to participate  in the Final Design  AFE, then
      the  Operator  shall proceed  with the  Final Design  AFE for  the Joint
      Account of the Parties.  If a Party makes an Election not to participate
      in the Final Design  AFE, then each  of the Participating Parties  shall
      elect to either: (i) proceed with the Final Design AFE with the interest
      of the Non-Participating  Party shared by  the Participating Parties  on
      the  basis  of  their  respective Working  Interests,  unless  otherwise
      agreed, or (ii) change its Election to become a Non-Participating Party.
      All  risk,  Cost  and  expense  shall  be  borne  in  proportion to  the
      respective interest of the Participating Parties.  Any Non-Participating
      Party shall  be subject  to the Non-Consent  provisions as set  forth in
      Article  16.5.3 (Geophysical  Operations, Feasibility  Study, Integrated
      Project Team andlor Final Design AFE). 

12.8  Fabrication AFE:  Within twelve (12)  months from  the date of  the last
Election for  the Final Design AFE  as provided in Article  12.7 (Final Design
AFE),  unless such additional  time is  necessary due to  circumstances beyond
Operator's  control, Operator shall  submit a Fabrication  AFE for the Initial
Production  System to  all Parties  for their  Election.  The  Fabrication AFE
shall consist of  separate AFEs for each major component  in the construction,
fabrication and installation  of the Initial  Production System identified  in
the approved Development Plan  and Final Design AFE.  If the Operator does not
timely submit  the Fabrication AFE, any Party may submit a Fabrication AFE for
the Development Plan.   The Fabrication  AFE shall consist  of a separate  AFE
for: (i) the structural  components of the Initial Production System, (ii) the
equipment and  Facilities to be located on  a Contract Area (or  located off a
Contract  Area but serving a Contract Area),  and (iii) any pipelines or other
Facilities for  handling Hydrocarbon production.   The Election  regarding the
Fabrication  AFE shall  be a  single Election and  not an  Election as  to the
individual AFEs comprising the Fabrication AFE.

      12.8.1      Response to  Fabrication AFE:  The Parties shall  make their
      Election  as to the Fabrication AFE  within the time period as described
      in Article  8.3.2 (Production  System Construction).   Development Wells
      shall be subject to separate  AFEs and shall not be included  within the
      Fabrication AFE.  If all the Parties make an Election  to participate in
      the  Fabrication  AFE,  then  the  Operator  shall  proceed  to  design,
      fabricate,  construct,  transport  and  install  the  Initial Production
      System  for the Joint Account of the Parties.   By making an Election to
      participate in  the Fabrication AFE, each Participating Party commits to
      pay its Participating Interest share of the Costs, risks and liabilities
      of the  Initial Production  System as  set out  in the  Fabrication AFE.
      Each  Non-Operating Participating Party shall have  the option to attend
      regularly scheduled  meetings between  the Operator and  any contractors
      constructing the  Initial Production  System or Facilities  specified in
      the Fabrication  AFE as well as  visits to the construction  sites.  Any
      Non-Participating Party shall be subject to Article  12.9 (Assignment of
      Interest)  and  the Participating  Parties  shall elect  to  either: (i)
      proceed  with  the  Fabrication  AFE  with  the  interest  of  the  Non-
      Participating Party shared by the Participating Parties  on the basis of
      their  respective Working  Interests, unless  otherwise agreed,  or (ii)
      change  its Election to  become a Non-Participating  Party.  The Working
      Interest   of  the  Non-Participating  Party  shall  be  shared  by  the
      Participating   Parties  in  accordance  with  Article  16.2.3  (Initial
      Production System).

12.9  Assignment  of  Interest:  If  any  Party  makes   an  Election  not  to
participate in the Fabrication  AFE for the Initial Production System under an
approved Development Plan,  then the Non-Participating Party  shall be subject
to  Article 16.2 (Acreage  Forfeiture Provisions) and  be deemed a Withdrawing
Party  subject to Article  17 (Withdrawal from  Agreement).  The Participating
Parties  shall  share  the  interest  assigned  in   the  proportion  which  a
Participating  Party's  Working  Interest  bears to  the  sum  of  the Working
Interests of  all of the  Participating Parties (unless  otherwise unanimously
agreed by the Participating Parties).   If the Operator makes an  Election not
to  participate in the  Fabrication AFE, then  the Participating Parties shall
select  a successor Operator  pursuant to Article  4.5 (Selection of Successor
Operator).    If  Development Operations  under the Development  Plan are  not
timely commenced pursuant to  Article 12.14 (Timely Operations  for Production
Systems), the Non-Participating Party shall  be entitled to a reassignment  of
its Working Interest.

12.10 Minor Modifications and Revisions  to Development Plans: In implementing
the Development Plan, the Operator  shall advise the Participating Parties  of
progress.  As additional information becomes available,  the Operator may make
modifications and revisions to the Development Plan subject to the following. 

      12.10.1     Minor Modifications to Development Plans: The  Operator may,
      without  the   approval  of   the  Participating  Parties,   make  minor
      modifications to a Development Plan if such minor modifications are both
      necessary and  reasonable  to  accomplish the  Development  Plan.    For
      purposes  of  this   paragraph,  a  minor  modification   shall  mean  a
      modification which does not cause the estimated Cost of any separate AFE
      submitted  under the Fabrication  AFE to  increase by more  than fifteen
      percent  (15%) or  Fifteen Million  Dollars ($15,000,000),  whichever is
      less, and does not change  the type of Production System, the  number of
      Development Wells, the  capacity of  the Facilities  or the  Hydrocarbon
      transmission  system of the Development Plan.   Such minor modifications
      also shall not  materially change the risk or timing  of the Development
      Plan.

      12.10.2     Revisions to  Development Plans:  A Development Plan  may be
      revised as  needed to  accommodate  new data,  interpretations or  other
      changes  not   covered  by  Article  12.10.1   (Minor  Modifications  to
      Development  Plans)   or  by  Article  12.11   (Major  Modifications  to
      Development Plans).  Any such revision pursuant  to this Article 12.10.2
      (Revisions to  Development Plans) shall  require approval  as a  General
      Matter.   The Operator shall provide  a copy of  the revised Development
      Plan to all  Parties, except in  the case when  the Development Plan  is
      automatically  revised  as  a  result of  a  Development  Operation  not
      included in  the  then current  Development  Plan  being approved  as  a
      General Matter  as provided  in  Article 13.1  (Proposal of  Development
      Operations).

12.11 Major Modifications  to Development  Plans: The Operator  shall promptly
notify   the  Participating  Parties  whenever  a   major  modification  to  a
Development Plan is anticipated and shall furnish to the Participating Parties
the Operator's proposal to modify the Development  Plan (and associated AFE's)
along with the basis for the proposal  and estimated Costs.  Approval of major
modifications shall require the affirmative vote of all Participating Parties.
A major modification shall be deemed to have occurred when:

      (i)         the type of Production System is changed; or
      (ii)        the number of well slots of the Production System is changed
                  by at least twenty-five percent (25%); or
      (iii)       the  type of  Hydrocarbon  transmission system  is changed
                  (e.g., pipeline vs. barge, etc.),

      If the major modification is approved by  all the Participating Parties,
then the Operator shall immediately advise any Party who made  an Election not
to  participate in the  Fabrication AFE for  the original approved Development
Plan  and provide  the  modified Development  Plan  to such  Non-Participating
Party.   Any  Non-Participating Party  shall have  the right  for a  period of
ninety  (90) days,  after receipt of  the modified  Development Plan  from the
Operator,  in  which  to make  an  Election  to  participate in  the  modified
Development Plan.   Any Non-Participating Party's  Election to participate  in
the modified Development Plan shall be subject  to a Disproportionate Spending
Settlement  in an  amount equal  to one  hundred percent  (100%) of  such Non-
Participating Party's share of the  actual Costs incurred for the  Development
Plan.  The Non-Participating Party who makes an Election to participate in the
modified  Development  Plan  shall  be   an  underinvested  Party  until  such
underinvestment is eliminated.  The Participating Parties shall deliver to the
Non-Participating Party who makes an  Election to participate in the  modified
Development  Plan an assignment  of one  hundred percent  (100%) of  such Non-
Participating Party's former Working Interest in the  Contract Area, the wells
therein and production therefrom within thirty (30) days after full payment is
received.  If  the major modification is  approved, the Development  Plan (and
any associated  AFE's) shall be deemed  modified and the Operator  shall carry
out the modified Development  Plan.  In the event a major  modification is not
approved  by  all  Participating  Parties,  the  Operator  shall  continue  to
implement the approved Development Plan.

12.12 Supplemental AFE for Cost Overruns  on Fabrication AFE: As provided  for
in Article 6.2.6 (Supplemental AFE for Cost Overruns on Fabrication AFE).

12.13 Termination  of  a  Development  Plan: Any  proposed  termination  of an
approved Development Plan may only be accomplished by unanimous consent of the
Participating Parties.

12.14 Timely Operations  for Production Systems: The  Operator shall commence,
or cause to  be commenced. the construction of a  Production System within one
(1) year  from  the last  Party's  Election for  the  Fabrication AFE.    Such
construction  shall  be  deemed  timely  commenced  on   the  date  the  major
fabrication  contract  for  the  Production  System  is   awarded.    If  such
construction  is  not  commenced  in  a  timely   manner,  then  the  approved
Fabrication  AFE  shall  be  deemed  withdrawn  with  the  effect  as  if  the
Fabrication AFE had  never been submitted.  The above  notwithstanding, if the
MMS grants a  "Suspension of Production" or  a "Suspension of Operations"  (an
SOP/SOO") for an approved Development Plan, any shorter time  limits set forth
as requirements of the SOP/SOO  shall supersede the corresponding longer  time
limit set forth in this Agreement or the Development Plan.

12.15 Expansion,  Modification or  Repair  of an  Existing Production  System:
Subsequent to the installation of the Production System described and approved
in  the first Development Plan for a Contract  Area, any Party may propose the
expansion, modification or repair of  any existing Production System in  which
it has participated  by written notice to  the other Participating  Parties in
such Production System.   Such proposal shall be presented  in accordance with
Articles 6.7  (Annual  Operating Plan)  and  8.3  (Response Time  for  General
Matters and  Elections) for approval  as a General  Matter.  If approved  as a
General  Matter,  it  will be  binding  on all  Participating  Parties  in the
Production System and Operator shall proceed with such project for the benefit
of the Joint Account and all Cost, risk and expense of such operation shall be
borne in proportion to the respective Participating Parties' Working  Interest
in such Production System unless  otherwise agreed.  This Article 12.15  shall
not  constitute a limit on a Party's right to install its own Facilities under
Article  15 (Disposition of  Hydrocarbon Production).   The provisions of this
Article 12.15 shall not apply to subsequent Development Phase(s).

12.16 Subsequent Development  Phases:  At  any time  after  the  last  Party's
Election  under the Fabrication  AFE for  the Initial Development  System, any
Participating  Party may propose  an additional  Development Phase(s)  and the
installation of a subsequent or expanded Production  System(s).  Upon proposal
of a subsequent Development Phase, the Operator shall propose the formation of
an Integrated  Project Team to prepare  a Development Plan for  the subsequent
Development Phase.  The preparation and approval of the Development Plan for a
subsequent Development  Phase shall follow  the same  procedures specified  in
this Article  12 (Development Plan)  for the preparation  and approval of  the
initial Development Plan.

12.17 Access  to Existing  Facilities:  Development  Operations in  subsequent
Development Phases shall have reasonable  access (on a space available  basis)
to gathering, processing and  transportation Facilities installed for previous
Development Phases.

      12.17.1     Non-Consent Operations in  Subsequent Development Phases: If
      fewer than all Parties make  an Election to participate in a  subsequent
      Development Phase,  the Operator (or substitute  Operator) shall conduct
      Development  Operations  in the  subsequent  Development  Phase for  the
      account of the  Participating Parties and at  their sole Cost  and risk.
      The Participating  Parties  shall  conduct  the  subsequent  Development
      Operations with the benefit  of the non-consent provisions specified  in
      Article 16  (Non-Consent Operations).   A  Non-Participating Party  in a
      subsequent Development Phase shall not be entitled to any information or
      data  from any  subsequent  Development Operation  associated with  such
      Development Phase, unless the  Non-Participating Party makes an Election
      to  participate in  such subsequent  Development Operations  pursuant to
      Article  16.7  (Operations  From  a  Subsequent  Non-Consent  Production
      System).  Any Non-Participating Party in a  subsequent Development Phase
      may retain its Working Interest in the  Contract Area corresponding to a
      Development Phase  in  which it  participated.    However, such  a  Non-
      Participating Party  shall not  unreasonably interfere  with Development
      Operations  in the  subsequent Development  Phase (including  making any
      claim  for drainage  upon  the Participating  Parties in  the subsequent
      Development  Phase,  so long  as  the  subsequent  Development Phase  is
      conducted according to prudent operating practices).  In all events, the
      sequence  and   conduct  of  Development  Operations   in  a  subsequent
      Development  Phase shall be  controlled by the  Participating Parties in
      the subsequent  Development Operation.   Hydrocarbon  production volumes
      shall be  measured on  the basis  of well  tests and  operating expenses
      allocated upon the basis of Hydrocarbon production volume throughput.

                                  ARTICLE 13
                            DEVELOPMENT OPERATIONS

13.1  Proposal of Development  Operations: It is the intent of  the Parties to
proceed with development of the Contract Area in  accordance with the approved
Development Plan.  Any Participating Party in the Development Plan may propose
to  conduct  specific  Development  Operations  which  were  included  in  the
Development Plan by giving notice of the proposal and the associated Well Plan
[which shall include at least the information set out in  Article 10.2.1 (Well
Plan's Minimum Specifics)] and  AFE to the other Participating Parties.   Each
Development Operation  included  in an  approved  Development Plan  shall  not
require approval as  a General Matter.  The  Operator (or substitute Operator)
shall commence  the Development  Operation at  the sole Cost  and risk  of the
Parties making an Election to participate.  Costs of a non-consent Development
Operation  will  be  recouped  in  accordance  with  Article  16  (Non-Consent
Operations).  Any Participating Party  in the Development Plan may propose  to
conduct  specific  Development  Operations  which were  not  included  in  the
Development Plan.  However, such a proposal  shall also specify that it is not
for  an  operation  included in  the  Development  Plan.    A proposal  for  a
Development Operation  not  included in  the  Development Plan  shall  require
approval as a General Matter and, if  approved, such Development Operation not
included in  the Development Plan  shall automatically revise  the Development
Plan.   However, the  provisions of  this Article 13  (Development Operations)
shall  not apply  to the  proposal for  the Initial  Production System  in the
Contract Area.  The Initial  Production System shall be proposed as a  part of
the Development Plan in accordance with  Article 12 (Development Plan) of this
Agreement.

      13.1.1      Operator's Counterproposal: If a Non-Operating Party makes a
      proposal that was not included in the approved Development Plan and such
      proposal is  approved as a  General Matter  with the Operator  being the
      non-approving Party, the Operator shall have the option to:

      (a)   make an Election to participate  in the operation proposed by  the
            Non-Operating Party;
      (b)   become  a Non-Participating  Party pursuant  to the  provisions of
            Article 16 (Non-Consent Operations); or,
      (c)   make a  counterproposal within  the applicable response  time that
            attempts  to satisfy the  same or similar  objectives (in terms of
            timing and  development  of a  Contract Area)  as  would the  Non-
            Operating Party's proposal.

      The Operator's counterproposal, if  approved as a General Matter,  shall
      have the effect of voiding the Non-Operating Party's proposal.   A Party
      making an Election not to participate  in the Operator's counterproposal
      shall  become a  Non-Participating  Party in  the  operation subject  to
      Article 16 (Non-Consent Operations).   If the Operator's counterproposal
      is not approved, the  Operator shall make its Election  and commence the
      originally proposed operation in a timely manner.

      13.1.2      AFE Overruns and Substitute Wells: The Operator shall timely
      commence a Development Operation and continue the  drilling of such well
      with due diligence to  its Objective Depth  or until (i) a  supplemental
      AFE is required pursuant to Article  6.2 (Authorization for Expenditure)
      or (ii)  the Operator  encounters mechanical  difficulties, uncontrolled
      influx  of subsurface  water, abnormal  pressures, pressured  or heaving
      shale,  salt, granite  or other  practicably impenetrable  substances or
      other  similar  conditions  prevail  in the  hole  that  render  further
      drilling impracticable.  If the Development Well is abandoned due to the
      conditions  described  under  13.1.2  (ii),  then  the  Operator  or any
      Participating Party may propose  a substitute well (with the  associated
      AFE and  Well  Plan), and  each  Participating  Party in  the  abandoned
      Development  Well shall make  an Election whether  to participate in the
      proposed  substitute well.  The Operator  (or substitute Operator) shall
      commence the  substitute well at the  sole Cost and risk  of the Parties
      making  an Election to  participate.  Costs  of a Non-Consent substitute
      Development  Well will be  recouped in accordance  with Article 16 (Non-
      Consent Operations).

      13.1.3      Timely  Operations: A  proposed  Development Operation  (not
      requiring the  installation of a  Production System) shall  be commenced
      within  one hundred twenty (120) days from  the date upon which the last
      applicable Election to participate was made. If operations have not been
      timely commenced within  one hundred twenty (120)from the  last Election
      date,  the proposal and  Elections shall  be deemed withdrawn,  with the
      effect as  if the  proposal and  Elections had  never been  made.   If a
      proposal is  deemed  withdrawn due  to lack  of  timely commencement  of
      operations, any  Costs incurred  during  said one  hundred twenty  (120)
      period which are attributable to  the proposed operation shall still  be
      chargeable to  the Participating Parties.   A Development  Operation for
      the drilling of a Development Well shall be deemed to  have commenced on
      the date  the rig  arrives  on location  or, if  the rig  is already  on
      location, the date when actual drilling operations are begun.

13.2  Subsequent   Development   Operations  at   Objective  Depth:   After  a
Development Well (or  its substitute) has been drilled  to its Objective Depth
as  set forth  in  the Well  Plan  (and all  logs  and  evaluations have  been
distributed to  the Participating Parties), the Operator shall promptly notify
the Participating Parties of the Operator's  proposal for one of the following
operations:

      (a)   conduct Additional  Testing, Coring  or Logging of  the formations
            encountered prior to setting production casing;
      (b)   complete the well at the Objective  Depth in the objective zone or
            formation;
      (c)   Sidetrack the well to another bottomhole location not deeper  than
            the stratigraphic equivalent of the original Objective Depth;
      (d)   plug back the well and attempt a completion in a shallower zone or
            formation;
      (e)   Deepen  the  well  to  a  new  Objective  Depth; M  conduct  other
            operations on the well not listed;
      (g)   temporarily abandon the well; or
      (h)   permanently plug and abandon the well.

      13.2.1      Response  to  Operator's Proposal:  Within  forty-eight (48)
      hours  (exclusive  of Saturdays,  Sundays  and  federal holidays)  after
      receipt  of   Operator's  proposal  to  conduct  subsequent  Development
      Operations,  each Participating  Party shall  respond to  the Operator's
      proposal by making its Election to participate in Operator's proposal or
      by making  a  counterproposal.   Failure  of  a Participating  Party  to
      respond  to a proposal (except a proposal  to plug and abandon) shall be
      deemed an Election  not to participate in the Operator's proposal and to
      become a Non-Participating Party from that point.

      13.2.2      Counterproposals:   If  a   Participating   Party  makes   a
      counterproposal   for  subsequent  Development   Operations,  the  other
      Participating Parties shall have an additional twenty four (24) hours to
      respond  thereto.   If convicting  proposals for  subsequent Development
      Operations  are made, preference  shall be given  first to operation (a)
      above,  next to operation (b) above, and  so forth.  If different depths
      or  locations   are  proposed  for  subsequent  Development  Operations,
      preference for  voting shall be  given to the  shallowest depth (or  the
      location nearest  the  existing well  bore)  and  then other  depths  or
      locations in  descending (or more distant)  order.  After a  decision to
      conduct a  subsequent Development Operation  is made and  the subsequent
      Development Operation  is commenced,  the remaining proposals  for other
      types of  subsequent Development  Operations shall be  deemed withdrawn.
      At  the completion of the subsequent Development Operation, the Operator
      shall again submit proposal(s)  for subsequent Development Operations to
      the Participating Parties, through  the procedure provided herein, until
      such time as the well is plugged and abandoned.

      13.2.3      Approval  of   Subsequent  Development  Operations   by  All
      Parties: If the proposed subsequent Development Operation is approved by
      all  the  then  Participating   Parties,  the  Operator  (or  substitute
      Operator)  shall commence  the subsequent  Development Operation  at the
      Cost(s) and risk of the Participating Parties.

      13.2.4      Approval of  Subsequent Development Operations as  a General
      Matter  by  Fewer  Than  All  Parties:  If  a  proposal  for  subsequent
      Development  Operations  (except a  proposal  to plug  and  abandon), is
      approved as  a  General Matter  by  fewer  than all  Parties,  then  the
      Operator shall  conduct the operation at  the sole Cost and  risk of the
      Participating  Parties.   Any  Non-Participating Party  in a  subsequent
      Development  Operation   shall  be subject  to  Article 16  (Non-Consent
      Operations).   A  Non-Participating  Party in  a subsequent  Development
      Operation shall be relieved  of the Costs, risks and obligations  of the
      subsequent Development Operation, except as to its share of the Costs of
      plugging  and  abandoning  the  Development  Well  in  its  then-current
      condition.  No operation shall be performed on the well unless deemed by
      the Operator to  be safe and the well bore is  in a condition to perform
      the proposed operation.

13.3  Election by  Non-Participating  Parties  in  Deepening  or  Sidetracking
Operations:  If a Development Well  is drilled to  its initial Objective Depth
and does not  appear to  result in a  well that will  qualify as a  Producible
Well,  and if  any  Participating Party  proposes to  either  (i) Deepen  said
Development Well or (H)  Sidetrack said Development Well, then as  provided in
Article 13.2  (c)  or  (e),  the Operator  shall  notify  each  original  Non-
Participating Party  of the proposal.   Each original  Non-Participating Party
may respond  with an Election regarding such a proposal to Deepen or Sidetrack
by notifying  the  Operator of  its  Election  within forty-eight  (48)  hours
(exclusive of  Saturdays, Sundays and  federal holidays)  after receiving  the
Operator's notice.  Any original Non-Participating Party making an Election to
participate in  such Deepening or Sidetracking of  a Development Well shall be
deemed  to be  underinvested in  an  amount equal  to its  share  of the  Cost
incurred  in such  Non-Consent Well  (including but  not limited  to drilling,
testing,  logging or  coring) prior  to the  Deepening or  Sidetracking.   The
Parties that participated in  drilling to the initial Objective Depth  will be
deemed overinvested  in that amount,  and all Costs for  operations under this
Agreement that would otherwise be allocated to such overinvested Parties shall
be allocated  to  the  underinvested  Parties until  all  overinvestments  are
eliminated.    Any original  Non-Participating  Party  making  an Election  to
participate in  the  Deepening or  Sidetracking of  a  Development Well  shall
remain a  Non-Participating  Party in  the  Development  Well to  the  Initial
Objective Depth  until  the Costs  recoverable under  Article 16  (Non-Consent
Operations), less any payments  through a Disproportionate Spending Settlement
and/or  Article 16.9  (Underinvestment of  Costs), have  been recouped  by the
original Participating Parties.

13.4  Deeper Drilling: A proposal  to drill a Development Well to an Objective
Depth below the deepest Producible  Reservoir penetrated by a Producible  Well
or to  reenter and Deepen an  existing Development Well to  an Objective Depth
below the deepest Producible Reservoir  penetrated by a Producible Well  shall
require  approval as  a General  Matter and  shall be  further subject  to the
following provisions.

      13.4.1      Limited Participation  in Deeper Drilling: If  a proposal is
      approved  pursuant  to Article  13.4  (Deeper Drilling),  any  Party may
      either:

            make an Election  to participate in  the proposed Deeper  Drilling
            operation; or make an Election not to  participate in the proposed
            Deeper Drilling operation; 
            or, 
            make  an Election to  limit its  participation to drilling  to the
            base of the deepest Producible  Reservoir to be penetrated by  the
            Deeper Drilling operation.

      A  Party making  an  Election to  limit  its participation  in a  deeper
Development Well to the  base of the  deepest Producible Reservoir shall  bear
its Participating Interest share of  the Cost and risk of  drilling (including
abandonment) to  the base of  the deepest  Producible Reservoir.   If a  Party
makes an  Election not  to participate  in the  proposed Deeper  Drilling, the
proposed  operations shall  be conducted  pursuant to Article  16 (Non-Consent
Operations).

      13.4.2      Multiple Completion Alternatives Above and Below the Deepest
      Producible Reservoir:  If a Non-Participating Party in a Deeper Drilling
      operation below the deepest Producible Reservoir:

      (i)   considers the  well to  be capable of  producing at  or above  the
            deepest Producible Reservoir, and
      (ii)  has  indicated  a desire  to complete  the  well at  or  above the
            deepest Producible Reservoir,

      any further Deeper Drilling operations shall be conducted subject to the
      following provisions:

      (a)   Multiple Completion: If all the  Participating Parties in the well
            agree  that   a  multiple  well  completion(s)   is  possible  and
            practicable  involving (i)  a completion at  or above  the deepest
            Producible  Reservoir  and (ii)  a  completion  below the  deepest
            Producible  Reservoir,  the Participating  Parties  in the  Deeper
            Drilling operation shall bear  100% of the Costs of drilling to an
            Objective Depth below the deepest Producible Reservoir that are in
            excess of the original Costs to drill and complete the well in the
            deepest Producible Reservoir.
      (b)   Single Completions: If the Participating Parties do not agree that
            multiple well  completions are  possible or practicable,  the Non-
            Participating  Party in  the  Deeper Drilling  operation shall  be
            deemed overinvested in the original well in an amount equal to the
            Non- Participating Party's Share of the original Costs of drilling
            the well to the  deepest Producible Reservoir.   The Participating
            Parties  in  the  Deeper  Drilling operation  shall  assume  their
            proportionate share of the  Non-Participating Party's Share of the
            Costs of other operations conducted under this Agreement until all
            overinvestments are eliminated.

      If, after having  been drilled  to an  Objective depth  deeper than  the
      deepest Producible Reservoir, at  the first occurrence of the  following
      events:

      (i)   the  well is not a Producible Well  in the deeper depths and
            the well is plugged back to a shallower zone; or,
      (ii)  the  well is completed  as a  Producible Well in  the deeper
            depths, but  Hydrocarbon production from the  deeper zone is
            later depleted prior to Non-Consent Recoupment (attributable
            to Deeper  Drilling operation) and the well  is plugged back
            to a shallower zone; or,
      (iii) the well is  completed  as a  Producible  Well in the deeper
            depths  and  the  Participating  Parties have recovered  the
            applicable non-consent Recoupment (attributable to the Deeper
            Drilling operation)  from  Hydrocarbon  production  from the
            deeper zone,

      the Participating Parties as to the depths  below the deepest Producible
      Reservoir  shall be deemed  overinvested in an amount  equal to the Non-
      Participating Party's  Share  of the  well's Cost  down  to the  deepest
      Producible Reservoir.   The overinvestment  shall be depreciated  at the
      rate of  one-half percent  (1/2%) per  month from  the  date the  Deeper
      Drilling operation commences to the earlier of the date of  (i), (ii) or
      (iii)  above, but such depreciation shall  not reduce the overinvestment
      below  forty percent (40.0%)  of the original  overinvestment.  The Non-
      Participating  Parties in  the  Deeper Drilling  operation shall  assume
      their  proportionate share  of the  Participating Party's  Share of  the
      Costs of  other  operations conducted  under  this Agreement  until  all
      overinvestments are eliminated.

      13.4.3      Completion  Attempts  At  or  Above  the Deepest  Producible
      Reservoir: If a well drilled  below the deepest Producible Reservoir  is
      not  completed   for  production  in   the  deeper   depths,  then   the
      Participating  Parties  in said  well  down  to  the deepest  Producible
      Reservoir shall have  a right to  utilize the well  for completion in  a
      Producible Reservoir.   The Participating Parties in  drilling below the
      deepest  Producible  Reservoir  in  said  well  shall   bear  the  Costs
      (including  plugging back Costs)  necessary to place  the well in proper
      condition  for completion in a Producible Reservoir.   If a well drilled
      below the deepest Producible Reservoir is  damaged to the extent that it
      is  rendered incapable of  being completed and produced  at or above the
      deepest Producible Reservoir in that well, the Participating  Parties in
      the Deeper Drilling operation shall be obligated, at their sole Cost and
      risk, to restore the well to its condition prior to  the Deeper Drilling
      operations below  the deepest  Producible Reservoir.   The Participating
      Parties in the Deeper  Drilling Operation shall be obligated to  pay for
      the entire Cost of redrilling the well if the damage cannot be repaired.
      Both the  Participating Parties in  the original drilling  operation and
      the  Participating Parties  in the  Deeper Drilling  operation shall  be
      Participating  Parties  in  the  completion  attempt  in  the  shallower
      formation.

13.5  Plugging and Abandoning Costs: At  the conclusion of all operations  set
forth  in  a  Development  Well's Well  Plan  and  all  subsequent Development
Operations on such well or, if the Operator encounters mechanical difficulties
or impenetrable  conditions, which  make further drilling  impracticable, then
the Operator may propose to  plug and abandon the well.  Upon  approval of the
well  abandonment  as  a  General Matter  by  the  Participating  Parties, the
Operator  shall commence  the  plugging  and abandonment  of  the  well.   The
Participating Parties  in  the original  operations  shall  pay all  Costs  of
plugging  and abandoning the  Development Well (except  any increased plugging
and abandoning Costs associated solely with a subsequent Development Operation
conducted as a  Non-Consent Operation).  The Participating Parties in any Non-
Consent  Operation  shall  be  responsible  for  the  increased  plugging  and
abandoning Costs attributable to the Non-Consent Operation.

                                  ARTICLE 14
                       FACILITIES AND GATHERING SYSTEMS

14.1  Facilities  as a Part  of Development  Plan: The Development  Plan shall
provide  for the installation  of all basic Facilities  necessary to handle or
service  Hydrocarbon  production  for  the Contract  Area.    If  the approved
Development Plan provides that Hydrocarbon  production from the Contract  Area
can most efficiently  be processed and handled  at Facilities located  off the
Contract Area (an "offsite facility"), the Development  Plan shall provide for
a Production System designed to utilize an "offsite facility".

14.2  Use of  Facilities  Off the  Contract  Area: In  the  event that  excess
capacity  exists at an  "offsite facility"  and the approved  Development Plan
calls  for  a  "tie-back" development  of  the  Contract Area  to  an "offsite
facility",  the Operator will  use reasonable efforts  to secure a "Facilities
Use  and  Production  Handling  Agreement" from  the  owners  of  the "offsite
facility" for use in handling  Hydrocarbon production from the Contract  Area.
However, the Operator shall  have no duty (fiduciary or  otherwise) beyond the
obligation  to utilize  reasonable efforts  to secure  access to  the "offsite
facility" on behalf of the Participating Parties.  Any access  secured by such
"Facilities Use  and Production Handling  Agreement" to an  "offsite facility"
shall  be  shared  proportionately  by  the  Parties  on  the basis  of  their
Participating Interests in the Development Plan.  This Article 14.2 shall  not
constitute a  limit on  a Party's  right to install  its own  Facilities under
Article 15 (Disposition of Hydrocarbon Production).

14.3  Use  of  Facilities  Located on  the  Contract  Area:  The Participating
Parties hereto shall have priority access to all jointly owned  Facilities and
gathering  system capacity for  use in  operating and developing  the Contract
Area  pursuant to an approved Development Plan.   Use of the Facilities on the
Contract  Area for handling  production coming from  outside the Contract Area
may be granted only if Facility capacity  is available beyond the requirements
of an  approved Development  Plan for  developing the Contract  Area.   Use of
excess capacity from Facilities shall be subject to the following priority  of
usage:

      a.    First  priority to  Hydrocarbon  production jointly  owned by  the
            Participating Parties from inside the Contract Area.
      b.    Second  priority to  Hydrocarbon production  Jointly owned  by the
            Participating Parties coming from outside the Contract Area.
      c.    Third priority to Hydrocarbon  production owned by a Participating
            Party coming from outside the contract Area.
      d.    Fourth priority  to Hydrocarbon Production owned  by third parties
            coming from outside the Contract Area.

      Priority  "a" shall require  approval by the  Participating Parties as a
General Matter.  Priorities  "b", "c" and "d" shall require unanimous approval
by all the Participating Parties.  In the event that unanimous approval cannot
be reached by the Participating Parties under priorities "b" and "c" above, as
to the  means and methods for utilizing  such excess capacity from Facilities,
such excess capacity shall be allocated  to each Party in accordance with each
Party's Participating Interest in the  Facilities having excess capacity,  and
each  Party shall be entitled to use its  share of excess capacity as it deems
appropriate. 

14.4  Approval of Additional Facilities on a Contract Area: This Article shall
only apply to Facilities located on  the Contract Area which were not included
in the approved Development Plan.   Any Party may propose the  installation of
additional or expanded Facilities for the Contract Area beyond those specified
in the Development  Plan by giving notice  to the other  Participating Parties
together  with information adequate  to describe  the proposed  Facilities and
their estimated Costs.  Except as provided in Article 15.2 (Facilities to Take
In Kind), the installation of  additional Facilities on the Production  System
beyond  the scope of  the Development Plan  shall require the  approval of the
Participating Parties as a General Matter, and  the availability of sufficient
deck  space and buoyancy to support the  proposed additional Facilities.  Upon
approval, the Operator shall proceed to install  the additional Facilities for
the benefit of the Participating Parties provided that, in the judgment of the
Operator,  the   additional  Facilities  do  not   interfere  with  continuing
operations  on  the  Contract  Area.    The  installation  of  any  additional
Facilities shall  be at the sole  Cost and risk of  the Participating Parties.
Any Non-Participating  Party shall be  subject to Article  16.5.6 (Non-Consent
Subsequent Production System and Facilities)

14.5  Contract Area  Production: Notwithstanding  any other provision  of this
Agreement to the contrary, production owned by  the Participating Parties from
the Contract Area  shall at all  times have first  preference to use  capacity
over any production from outside the ContractArea.

                                  ARTICLE 15
                     DISPOSITION OF HYDROCARBON PRODUCTION

15.1  Duty to Take in Kind:  Each Party shall have the right and duty to  take
in kind  or separately dispose of  its share of the  Hydrocarbons produced and
saved  from a  Contract Area,  exclusive of  Hydrocarbon production  which the
Operator uses  in  production  or Development  Operations,  in  preparing  and
treating Hydrocarbons for marketing purposes, and Hydrocarbon production which
is unavoidably lost.

15.2  Facilities  to Take  in  Kind: Any  Participating  Party in  Development
Operations shall  have the right, at  its sole risk and  expense, to construct
Facilities for purposes of taking its share of Hydrocarbon production in kind,
provided  that in  the judgment  of  the Operator,  the  installation of  such
Facilities do not interfere with continuing operations on the Production

System or  a Contract  Area.   During the construction  and operation  of such
facilities, the  Party  responsible for  the construction  or operation  shall
indemnify and defend the other Parties against any claims or liabilities which
may  result  from  such construction  or  operation  and such  Party  shall be
responsible  for any  damage or  losses sustained  by the  other Parties  as a
result of the construction or operation of such facilities.

15.3  Failure  to Take Oil  and/or Condensate in  Kind: If any  Party fails to
take in kind  or dispose of  its share of  the oil and/or  condensate produced
from  a Contract  Area,  the Operator  shall  have the  right,  but never  the
obligation to either  (a) purchase  the non-taking  Party's share  of the  oil
and/or  condensate production  at the  Operator's, or  a third  party's posted
price or,  in the absence of  a posted price  or disagreement as to  the third
party's  posted price,  at the  price prevailing  in the  area for  oil and/or
condensate  of similar kind  subject to adjustments  for gravity, quality, and
less  transportation to  market, or  (b) sell  such oil  and/or condensate  to
others at  the best price obtainable by the Operator, subject to revocation at
will  by the  non-taking  Party.    The non-taking  Parties  agree  to  accept
Operator's purchase or sale of the  non-taking Party's share of the oil and/or
condensate  production under  (a) or  (b) above.   The Operator  shall furnish
notification to  non-taking Party at the  time such option is  exercised.  All
contracts  of  sale  by the  Operator  of  any  Party's  share of  oil  and/or
condensate production shall be only for such reasonable periods of time as are 
consistent with the minimum needs of the industry under the circumstances, but
in no  event shall any  contract be for  a period in  excess of one  (1) year.
Proceeds of  all sales made by the Operator  pursuant to this Article shall be
paid to the Parties entitled thereto once in each calendar month.

      Unless required by governmental authority or judicial  process, no Party
shall be forced to share an available market with any non-taking Party.

15.4  Gas Balancing Provision:   The Parties agree that  in the event separate
disposition of gaseous Hydrocarbons causes split-stream deliveries to separate
pipelines and/or deliveries which on a day to day basis for any reason are not
equal  to a Party's  respective proportionate share  of total gas  sales to be
allocated to it, the gas balancing or accounting between the  Parties shall be
handled  in  accordance  with  Exhibit  "D"  attached  hereto,  entitled  "Gas
Balancing Agreement."

15.5  Expenses  of Delivery  in Kind:  Any Cost  incurred by  the Operator  in
making delivery of any Party's share of Hydrocarbon production or disposing of
same shall  be borne  by such Party.   Any extra  expenditure incurred  in the
taking in kind or separate disposition by any Party of its proportionate share
of Hydrocarbon production shall be borne by such Party.

                                  ARTICLE 16
                            NON-CONSENT OPERATIONS

16.1  Conduct  of Non-Consent Operations:  If any  Party makes an  Election to
become a Non-Participating Party in an operation, the proposed operation shall
be conducted as a Non-Consent Operation.   If the Participating Parties timely
commence the  Non-Consent Operation, then the  Non-Participating Parties shall
be  subject  to  either  the acreage  forfeiture  provisions  of  Article 16.2
(Acreage Forfeiture Provisions), 16.4  (Non-Consent Operations to Maintain the
Contract Area) or the Cost  recoupment provisions of Article 16.5  (Percentage
Recoupment for  Non-Consent Operations),  each reflecting the  increased risks
and Costs  assumed by the Participating  Parties.  Any operation  that invokes
the provisions of this Article 16.0 must be proposed  in good faith using cost
estimates  and Objective  Depths which  are reasonable  for the  Contract Area
considering the geological and  geophysical data available at the  time of the
proposal.  If  any proposed operation requires  approval as a  General Matter,
such approval shall be obtained prior to  the Participating Parties proceeding
with the Non-Consent Operation.   The Operator (or substitute Operator)  shall
conduct any  Non-Consent  Operation  at  the sole  risk  and  expense  of  the
Participating  Parties   in  the  Non-Consent  Operation.     Any  Non-Consent
Operations shall  not unreasonably jeopardize, hinder or  interfere with joint
operations  conducted by  all Parties  (unless the Non-Consent  Operation will
maintain all or a portion of the Contract Area under Article 16.4 (Non-Consent
Operations to Maintain Contract Area).

      16.1.1      Indemnity  for  Non-Consent  Operations:  The  Participating
      Parties shall  (insofar as  it may  be within  their  control) keep  the
      Contract Area free from all liens  and encumbrances which might arise by
      reason of conducting the Non-Consent Operation and indemnify, defend and
      hold  harmless the Non-  Participating Parties  from any such  liens and
      encumbrances.

      16.1.2      Cost  Information:  The Costs  of any  Non-Consent Operation
      shall be borne by the Participating Parties in the proportion that their
      Participating Interests bear  to the sum of all  Participating Interests
      in   the  Non-Consent   Operation  (unless   otherwise  agreed   by  the
      Participating  Parties).   The Costs  of a  Non-Consent Operation  shall
      include the Costs of maintaining  the drilling equipment on site  during
      the notice period for an Election or vote pursuant to Article 8 (Voting,
      Elections  and Notices), including  any response  times, and no  part of
      such Costs shall be borne by the Non-Participating Parties.   Within one
      hundred twenty (120) days  after completion of a  Non-Consent Operations
      the Operator shall furnish all the Parties an  itemized statement of the
      Cost  of the  Non-Consent Operation  and an  inventory of  the equipment
      pertaining thereto.  The Operator shall furnish to the Parties a monthly
      statement showing operating, maintenance and other expenses attributable
      to  the  Non-Consent  Operations,  and the  revenues  from  the  sale of
      Hydrocarbon production  for the preceding month  from operations subject
      to recoupment under this Article 16 (Non-Consent  Operations).  The Non-
      Operating  Parties  shall furnish  the  Operator  any revenue  or  price
      information for  their take in kind  production.  In  accounting for the
      revenues from Non-Consent Operations, Hydrocarbon production need not be
      separately metered, but may be determined upon the basis of monthly well
      tests.

      16.1.3      Non-Consent Operations in Producible Well: Once a Producible
      Well has been completed and placed on production, Non-Consent Operations
      shall  not  be  conducted  in  that well  unless  approved  by  all  the
      Participating Parties in such  well, unless such well is not  capable of
      producing from its current completion(s).

      16.1.4      Non-Consent  Operations  in  Producible  Reservoirs:  Unless
      otherwise  agreed   by  all   Parties,  Non-Consent  Operations   for  a
      Development  Well shall  not be  conducted in  any Producible  Reservoir
      previously  penetrated by a  Producible Well  drilled from  or producing
      through the same Production System serving the  Non-Consent Well and the
      Producible  Well  unless  such  Producible  Reservoir  shall  have  been
      designated  as  an  Objective  Depth  or  completion  zone in  the  well
      proposal.

      16.1.5      Multiple  Completions: Non-Consent  Operations shall  not be
      conducted in any well having multiple completions unless:

      (a)   each of the multiple  completions are owned by the same Parties in
            the same proportion; or,
      (b)   none of  the previous well  completions are capable  of producing;
            or,
      (c)   all  Participating Parties  in  the well  containing the  multiple
            completions consent to such Non-Consent Operation(s).

      For  the  purposes of  this  Article 16  (Non-Consent  Operations), each
      completion shall be considered as a separate well.

16.2  Acreage  Forfeiture Provisions:  In  view of  the significantly  greater
risks associated with  the Exploratory  Well and the  Fabrication AFE for  the
Initial Production System, the Parties agree that  upon timely commencement of
such operations, the Participating Parties shall be  entitled to an assignment
of the  Non-Participating Party's right, title,  interest (including operating
rights) in all of the Leases  comprising a Contract Area.  Within  thirty (30)
days  of  the  timely  commencement of  the  Non-Consent  Operation,  the Non-
Participating Party(s) shall execute and deliver an assignment of its interest
to  the Participating Parties; with no reimbursement by  and at no cost to the
Participating Parties.   If an  assignment is  made pursuant  to this  Article
16.2, then  each Participating Party  shall accept its  Participating Interest
share  of the  Non-Participating Party's  assigned interest,  unless otherwise
agreed.    Except  as  provided  in  Article  16.4.3 (Limitations  on  Acreage
Forfeiture), the non-participating Party's Election not to participate  in the
Initial  Exploratory Well, Exploratory  Well, or  the Fabrication AFE  for the
Initial  Production System shall  be deemed  a withdrawal pursuant  to Article
17.0 (Withdrawal From Agreement).

      16.2.1      Exploratory  Well:  If one  or  more Participating  Party(s)
      proceed with operations for the Initial Exploratory Well on the Contract
      Area as  a Non-Consent  Operation, any Non-Participating  Party(s) shall
      relinquish and assign to the Participating  Party(s) one hundred percent
      (100%) of the Non-Participating Party's right, title and interest in and
      to all of the Leases comprising the Contract Area.

      16.2.2      Initial  Production  System: If  one  or more  Participating
      Party(s)  proceed  with timely  operations  for  the Initial  Production
      System as a Non-Consent  Operation, the Non-Participating Party(s) shall
      relinquish and  assign to the Participating Party(s) one hundred percent
      (100%) of the Non-Participating Party's right, title and interest in and
      to all of the Leases comprising the Contract Area.

      16.2.3      Costs  of  Prior  Operations:  Any  Non-Participating  Party
      subject to a Non-Consent provision shall remain liable  for its share of
      previously incurred  Costs for operations  where it was  a Participating
      Party  and there  shall be  no re-allocation  of Costs  due to  the Non-
      Participating Party's election or assignment.

16.3  Notices  and  Orders: If  the Operator  is required  by notice  or order
(including SOPs and SOOs) from any government  agency having jurisdiction over
the  Contract  Area  to either  drill  or  rework  a  well, or  conduct  other
operations to maintain all or a portion of a Contract Area, the Operator shall
immediately furnish each of the Parties with a copy of such order or notice.

16.4  Non-Consent  Operations  to  Maintain  Contract  Area:    The  following
provisions are applicable if:

      (a)   an operation is required, pursuant to a governmental agency order,
            notice, regulation, SOO or SOP requirement or Lease obligation, to
            maintain all or any portion of a Contract Area; or,
      (b)   a proposal  is made for  an operation  within the  final nine  (9)
            months of the primary term of a Lease which has no Producible Well
            and such Lease is not held by a unit, SOO or SOP,

      then  such operation  must be  timely commenced  and shall  be conducted
pursuant to this Article 16.4. The response time for a proposal made hereunder
shall be the earlier of:

      (a)   the response  time  provided  in  Article 8  (Voting,  Election  &
            Notices), or;
      (b)   sixty  (60)  days before  the  deadline under  the  order, notice,
            regulation, SOO or SOP  requirement or Lease obligation, whichever
            is earlier.

      If the proposal requires  approval as a General Matter and such approval
is not obtained within the applicable response period, then any Party who made
an Election to participate in the Non-Consent Operation  may proceed with such
operation after  giving notice to the  other Parties.  The  other Parties will
have fifteen (15) days after receipt of the notice to make an Election.

      16.4.1      Acreage  Forfeiture in the  Entire Contract Area:   If it is
      necessary  to  drill or  rework a  well or  conduct other  operations to
      maintain an  entire Contract Area, then each  Non-Participating Party in
      the Non-Consent Operation shall relinquish and permanently assign to the
      Participating   Parties  one   hundred  percent   (100%)  of   the  Non-
      Participating  Party's  Working Interest  in  the  entire Contract  Area
      within  thirty  (30)  days  after commencement  of  such  well  or other
      operation.   Failure  to participate  in such  well or  other operations
      shall  be  deemed  a  withdrawal  and  the   provisions  of  Article  17
      (Withdrawal From Agreement) shall apply.

      16.4.2      Acreage  Forfeiture in a  Portion of  a Contract Area:  If a
      well is drilled or  reworked or other operations are conducted  in order
      to  maintain a portion  of a Contract  Area, then each Non-Participating
      Party  in the  Non-Consent  Operation shall  relinquish and  permanently
      assign  to the Participating  Parties one hundred  percent (100%) of the
      Non-Participating  Party's Working Interest in the affected portion of a
      Contract Area within thirty (30) days after commencement of such well or
      other operation.  If a Party  forfeits its Working Interest pursuant  to
      this Article 16.4.2, then such Party  shall have no further rights under
      this  Agreement as  to the portion  of a  Contract Area  forfeited.  The
      remaining Parties shall amend this  Agreement to provide for a  separate
      operational area for  the forfeited portion of a  Contract Area and this
      Agreement shall apply separately to such operational area.

      16.4.3      Limitations  on  Acreage  Forfeiture:  Notwithstanding   the
      foregoing,  if more than one well is  drilled or more than one operation
      is conducted, any  of which would  maintain the entire Contract  Area or
      the  affected portion  of a  Contract Area, an  assignment shall  not be
      required  from  any  Participating  Party  in  any  such well  or  other
      operation.   In addition, no  Party shall  be required to  relinquish or
      assign all  or any portion of its Working Interest in a Contract Area if
      the order,  requiring  the well  or  other  operation, is  appealed  and
      successfully overturned.

16.5  Percentage Recoupment for Non-Consent  Operations: Except as provided in
Articles 16.2 (Acreage Forfeiture Provisions) and 16.4 (Non-Consent Operations
to  Maintain Contract Area),  upon the timely  commencement of any Non-Consent
Operation,  each  Non-Participating  Party's Working  Interest  and  leasehold
operating rights in the  Non-Consent Operation along with title  to any future
Hydrocarbon  production  therefrom  shall  be  owned  by  and vested  in  each
Participating Party in the proportion that  each Participating Party's Working
Interest  bears to  the total  Working Interest  of all  Participating Parties
(unless other proportions are agreed by the Participating Parties) for as long
as  the  Non-Consent Operation  originally  proposed  is  being  conducted  or
Hydrocarbon  production is  obtained  from the  Non-Consent  Operation.   Such
interest,  rights and title  to future Hydrocarbon  production shall revert to
each Non-Participating Party  when the Participating  Party has recouped  from
the  Non-Participating  Party's  Share   of  proceeds  of  future  Hydrocarbon
production from  such Non-Consent Operation an amount  equal to the product of
the  Participating Party's  share of  the Costs  of the  Non-Consent Operation
multiplied by the recoupment percentage for each operation set out below.  The
Non-Participating  Party's Share of the Non-Consent Operation shall be reduced
(to the extent of the Non-Participating Party's prior Working Interest) by any
third-party cash  contribution credited  to the  Non-Consent Operation.   Upon
recoupment by  the  Participating Parties  of the  recoupment percentage,  the
Working Interest and leasehold operating rights in the Non-Consent  Operation,
along  with the title  to any  future Hydrocarbon Production  therefrom, shall
revert to the former Non-Participating  Party and the former Non-Participating
Party shall become a Participating Party in the Non-Consent Operation.

      16.5.1      Non-Consent    Subsequent   Exploratory    Operations:   The
      recoupment  amount for  Non-Consent  Subsequent  Exploratory  Operations
      shall be the Non-Participating Party's share of  the Costs of operations
      conducted  including,   but  not   limited  to,   drilling,  evaluating,
      Deepening,  Deeper  Drilling,  Sidetracking,  completing,  recompleting,
      equipping, plugging  back and plugging and abandonment of the Subsequent
      Exploratory Operation multiplied by seven hundred percent (700%).

      16.5.2      Non-Consent  Appraisal Operations:  The recoupment  for non-
      consent Appraisal  Operations  shall be  the  Non-Participating  Party's
      Share of the  Costs of drilling, evaluating, Deepening, Deeper Drilling,
      Sidetracking,  completing, recompleting,  equipping,  plugging back  and
      plugging and abandonment of the  Appraisal Operation multiplied by  four
      hundred percent (400%).  In addition to the recoupment amounts specified
      in this  Article, a Party  making an Election  not to participate  in an
      Appraisal Operation shall be an  underinvested Party in an amount  equal 
      to  the amount  such Party would  have paid  had it  participated in the
      Appraisal Operation.   As an underinvested  Party, the Non-Participating
      Party will be responsible for all Costs  of subsequent operations and/or
      AFEs  under this Agreement  (in addition  to Costs associated  with such
      Party's Working Interest) in which  the Non-Participating Party makes an
      Election to participate, which would otherwise be  the responsibility of
      the  Parties  making  an  Election  to  participate  in  such  Appraisal
      Operation,  until the  underinvestment  is eliminated.    Upon the  non-
      consenting  Party's  written  commitment  to  participate  in  the  next
      operation and/or AFE, the  Non-Participating Party shall be  entitled to
      receive  access to  the well  information and/or  data derived  from the
      Appraisal Operation in which it made an Election not to participate.

      16.5.3      Geophysical   Operations,   Feasibility  Study,   Integrated
      Project Team and/or Final Design AFE:  A Party making an Election not to
      participate in  a Geophysical Operations, Feasibility  Study, Integrated
      Project Team and/or  Final Design AFE will be an  underinvested Party in
      an amount equal to two  hundred percent (200%) of the amount  such Party
      would have paid had it participated in such AFE pursuant to Article 16.9
      (Under-Investment of  Cost).    As  an underinvested  Party,  the   Non-
      Participating  Party will  be responsible  for  all Costs  of subsequent
      operations  and/or  AFE under  this  Agreement  (in  addition  to  Costs
      associated  with  such  Party's  Working Interest)  in  which  the  Non-
      Participating  Party  makes  an  Election to  participate,  which  would
      otherwise  be the responsibility  of the  Parties making an  Election to
      participate   in  such   Geophysical   Operations,  Feasibility   Study,
      Integrated   Project   Team  and/or   Final   Design   AFE,  until   the
      underinvestment is eliminated.

      16.5.4      Non-Consent Development Operations: The recoupment  for Non-
      Consent Development  Operations (including workovers) shall  be the Non-
      Participating  Party's  Share  of  the Costs  of  drilling,  evaluating,
      Deepening,  Deeper  Drilling,  Sidetracking,  completing,  recompleting,
      equipping,  plugging back  and plugging  and abandoning  the Development
      Operation multiplied by three hundred percent (300%).

      16.5.5      Non-Consent Subsequent Production System and Facilities: The
      recoupment  for   any  non-consent  Subsequent   Production  System   or
      Facilities shall be the Non-Participating  Party's Share of the Cost  of
      designing, fabricating and  installing the Subsequent  Production System
      or  Facilities, including  the Cost  of an  injection or  disposal well,
      multiplied by two hundred percent (200%).

      16.5.6      Additional  Production   Recoupment:  In  addition   to  the
      percentage   recoupment  set   forth   above  for   various  Non-Consent
      Operations, the Participating Parties shall be entitled to recoup:

      (a)   two hundred percent (200%)  of the Non-Participating Party's Share
            of the Cost of Facilities  necessary to carry out the  Non-Consent
            Operation; plus,
      (b)   one hundred percent (100%)  of the Non-Participating Party's Share
            of the Cost of using  any Production System already installed  for
            the Contract  Area for  which the  Non-Participating  Party has  a
            Participating Interest; plus,
      (c)   one hundred percent (I 00%) of the Non-Participating Party's Share
            of the  Cost of operating expenses,  maintenance Costs, royalties,
            and severance, gathering, production taxes and  other governmental
            fees based on production.

      16.5.7      Recoupment From  Hydrocarbon  Production: Recoupment  for  a
      Non-Consent  Operation  which results  in  a discovery  of  a Producible
      Reservoir or extension of an existing Producible Reservoir shall be made
      from the  following portions of  the Non-Participating Party's  Share of
      Hydrocarbon production:

      (a)   Subsequent Exploratory Operations, Appraisal Wells, or Development
            Wells:  Recoupment shall be taken from  one hundred percent (100%)
            of  the  Non-Participating   Party's  Share  of   all  Hydrocarbon
            production  from  the  Non-Consent   Operation  (if  the  well  is
            completed  for  Hydrocarbon  production), and  from  fifty percent
            (50%)  of  the  Non-Participating  Party's  Share  of  Hydrocarbon
            production from  all wells  subsequently drilled and  completed in
            the Producible Reservoir discovered by said Non-Consent Operations
            or  the  extended  portion  of an  existing  Producible  Reservoir
            discovered by  said Non-Consent  Operation and in  which the  Non-
            Participating Party has a Participating Interest.
      (b)   Non-consent   Subsequent   Production   Systems   and  Facilities:
            Recoupment shall be taken from  one hundred percent (100%) of  the
            Non-Participating Party's share of Hydrocarbon production from all
            wells  which   are  drilled  from  and/or   produced  through  the
            Subsequent Production System or  Facilities and/or wells benefited
            from injection or disposal wells.

      The interest shall revert to each Non-Participating Party only after the
      Participating   Parties  have   completely  recouped   from  Hydrocarbon
      production the amounts specified herein.

16.6  Reversion of Interests to  Non-Participating Party:  A Non-Participating
Party's Working Interest and leasehold operating rights subject to  recoupment
from  future  Hydrocarbon   production  and/or  a   Disproportionate  Spending
Settlement, shall revert to the Non-Participating Party upon the occurrence of
the first of the following events:

            the Non-Consent Operation results in a dry hole; or,
            hydrocarbon production ceases prior  to complete recoupment by the
            Participating Parties; or,
            the  Participating Parties  propose to  Deepen below  the original
            Objective Depth if the original operation resulted  in a dry hole;
            or,
            upon complete recoupment.

      16.6.1      Dry Hole Reversion: If a Non-Consent Operation (other than a
      Non-Consent   Operation   under   Articles   16.2   (Acreage  Forfeiture
      Provisions)  and  16.4 (Operations  to  Maintain  Contract Area)  above)
      results in a dry hole and  fails to obtain Hydrocarbon production or, if
      Hydrocarbon  production  ceases  prior  to complete  recoupment  by  the
      Participating   Parties,  then  the  Non-Participating  Party's  Working
      Interest  and leasehold  operating rights  which have  been relinquished
      shall revert to  the Non-Participating Party.   However, all non-consent
      Wells,  Production   Systems  and  Facilities  [and   rights  to  future
      Hydrocarbon production from a  Producible Reservoir under Article 16.5.7
      (Recoupment  From Hydrocarbon  Production)] shall  remain vested  in the
      Participating  Parties.    Any  salvage  value  in  excess  of  complete
      recoupment shall be credited to  all Parties according to their  Working
      Interest and without regard to their participation status.

      16.6.2      Deepening a  Non-Consent Well: If a  Non-Participating Party
      makes  an Election to  participate in the  Deepening operation, then the
      Participating Parties shall be deemed overinvested to  the extent of the
      Non-Participating  Party's Share  of Costs  in the  original Non-Consent
      Operation (less any amount recovered by the Participating Parties out of
      the Non-Participating Party's Share of Hydrocarbon production or through
      a Disproportionate  Spending Settlement).  If  the Participating Parties
      have recouped the Cost of the well at the time they desire to Deepen the
      well then the Non-Participating Party will not be an underinvested Party
      in the Deepening of the well.   However, in such case, the Participating
      Parties  in  the  original  well   shall  still  be  permitted  complete
      recoupment from the other wells in  the Producible Reservoir, discovered
      or extended  by  the original  well as  provided in  Article 16.5.7  (a)
      (Recoupment from  Hydrocarbon Production), until  the total  non-consent
      amount to be recouped has been recovered from the Producible Reservoir.

16.7  Operations From  a Subsequent  Non-Consent Production System:  Any Party
who made an Election not to participate in a Subsequent  Production System may
make an Election to participate in operations  from such Subsequent Production
System.  If a Non-Participating Party makes an Election to participate in such
operations,  then  the  Non-Participating  Party  may  reduce  the  percentage
recoupment amount through a Disproportionate Spending Settlement in subsequent
Development Operations conducted  from the Subsequent Production System.   Any
Disproportionate  Spending Settlement  amounts  shall be  subtracted from  the
recoupment entitled to the Participating  Parties in the Subsequent Production
System pursuant  to Article  16.5.5 (Non-Consent Subsequent  Production System
and Facilities).

16.8  Allocation of Production System Costs  to Non-Consent Operations: In the
event a Non-Consent Well is proposed to  be drilled from or produced through a
Production System  owned  by all  the  Parties,  the rights  of  Participating
Parties to use the Production System for the proposed Non-Consent Well and the
Costs therefore shall be based on the following:

      16.8.1      Investment  Charges:  If  a  Non-Consent  Well  will utilize
      either a Production System and/or Subsea Production  System owned by all
      the Parties, the Non-Participating Parties in such  well shall be deemed
      to be the  overinvested Parties in such Production Systems to the extent
      the Participating Parties in such well would have paid a  charge for the
      right to use the Production  System and/or Subsea Production System  and
      its Facilities as follows:

      (a)   The  Participating Parties  shall pay  a one-time  slot usage  fee
            covering its use of  the Production System in  an amount equal  to
            two percent (2%) of the Cost  of the Production System, the Subsea
            Production  System  and  its  Facilities  to  the  owners  of  the
            Production  System (to  be  shared in  proportion  to the  owner's
            Working Interest in the Production  System).  For purposes of  the
            slot usage fee, the total Cost  of the Production System shall  be
            reduced by  .41667% per  month commencing upon  the first  monthly
            anniversary  date of when the  Production System was installed and
            every monthly anniversary  thereafter until the total  Cost of the
            Production System is reduced to  twenty-five percent (25%) of  the
            original  Cost.  The  Cost of  additions to the  Production System
            shall  be reduced  in the  same manner  commencing upon  the first
            monthly anniversary after the addition is installed.   If the non-
            consent well is abandoned,  the right of Participating  Parties to
            use  that  Production  System  slot shall  terminate  unless  such
            Parties commence  drilling a  substitute well from  the same  slot
            within  ninety (90) days  after abandonment.   The slot  usage fee
            shall not apply to a slot which  is deemed to be "surplus." A slot
            may  be deemed  surplus by  the unanimous  consent of  all Parties
            owning an interest in the Production System.

      (b)   If  Hydrocarbon production  from the  non-consent well  is handled
            through Facilities owned by all Parties, the Participating Parties
            shall pay  to the  owners of  the Facilities a  sum equal  to that
            portion of the total Cost of such Facilities  which one well bears
            to the total number of wells which the Facilities are  designed to
            accommodate.

      16.8.2      Operating   and  Maintenance  Charges:    The  Participating
      Parties in a non-consent  well shall pay all Costs necessary  to connect
      their well  to the Facilities and the Production System.  The expense of 
      operating and maintaining the Facilities and the Production System shall
      be allocated equally per active completion among all  active completions
      served.   Subsea  Production System  operating and  maintenance expenses
      shall be allocated equally per active subsea completion among all active
      subsea well completions served by such Subsea Production System.

      16.8.3      Payments:  The  payment of sums  pursuant to Article  16.8.1
      (Investment Charges) shall not be  a purchase of an additional  interest
      in the Production System or Facilities.  Such payments shall be included
      in  the total  amount which  the Participating  Parties are  entitled to
      recoup out of Hydrocarbon production from the non-consent well, but only
      to the  extent of  actual  Costs.   Such charges  shall be  paid by  the
      Participating  Parties in such  well by  allocating (in addition  to any
      other  Costs  allocated   to  them  under  this   Agreement)  all  Costs
      attributable  to tangible,  intangible  and other  cost categories  that
      would otherwise be allocated to the Non-Participating Parties until  all
      overinvestment is eliminated.

16.9  Underinvestment of Costs: A Non-Participating Party  shall not be liable
for settling  any underinvestment of its  share of the Costs  of a Non-Consent
Operation  unless, having the  right to do  so under this  Agreement, the Non-
Participating  Party  makes a  revised  Participation  Election  to  become  a
Participating  Party.   Unless otherwise  provided in  this Agreement,  a Non-
Participating  Party has  the right  to make  a revised  Election to  become a
Participating Party under the following Articles:

      (a)   Article 9.1.1 (Conduct of Propriety Geophysical Operations);
      (b)   Article 11.3 (Election by  Non-Participating Parties in  Deepening
            or Sidetracking Appraisal Operations);
      (c)   Article 11.4 (Deeper Drilling);
      (d)   Article 11.6.2 (Election on Proposed Feasibility Study);
      (e)   Article 12.3  (Integrated Project  Team Election); M  Article 12.7
            (Final Design AFE);
      (g)   Article 12.11 (Major Modification to Development Plans);
      (h)   Article 13.3 (Election by  Non-Participating Parties in  Deepening
            or Sidetracking Operations); and
      (i)   Article 13.4 (Deeper Drilling).

      16.9.1      Settlement  of  Underinvestments:  Upon  making   a  revised
      Participation Election,  a  Non-Participating  Party  shall  settle  any
      underinvestment for its share of the Costs in a Non-Consent Operation by
      either:

            making a Disproportionate Spending Settlement by bearing all Costs
            of all future operations  until the underinvestment is eliminated,
            (i.e. one hundred percent  (100%) of the Non-Participating Party's
            share of the Costs of the original operation); or,

            making an immediate cash  settlement to the original Participating
            Parties in the full amount of the under-investment.

      The  original   Participating  Parties   shall  select  the   manner  of
      eliminating the  underinvestment at their  sole discretion as  a General
      Matter.

      16.9.2      Cash Settlement of Underinvestment:  If there are no further
      proposed  or planned  operations on  the Contract  Area for  which Costs
      would be allocated  toward the elimination  of an under-investment,  the
      underinvested  Party shall  pay  any over-invested  Party the  remaining
      under-invested amount in  cash.  If operations on the Contract Area, for
      which Costs are  being paid by the underinvested Party  and allocated to
      the underinvestment, do not eliminate the underinvestment within two (2)
      years, or any other shorter period specified in this Agreement, from the
      date  the  underinvestment accrued,  or  upon final  settlement  of this
      Agreement, whichever comes first, the underinvested Party shall  pay the
      overinvested Party  the remaining  underinvestment in cash.   Percentage
      recoupment  for Non-Consent  Operations under  Article 16.5  (Percentage
      Recoupment  for  Non-consent  Operations)  shall not  be  considered  an
      over/underinvestment. 
   
                                  ARTICLE 17
                           WITHDRAWAL FROM AGREEMENT

17.1  Right of  Withdrawal:  Subject  to the  limitations  specified  in  this
Article, any Party (the "Withdrawing Party") may  withdraw from this Agreement
by giving prior written notice to  all other Parties (the "Remaining Parties")
stating its intention to withdraw  from continued joint operations under  this
Agreement.    The  withdrawal notice  shall  constitute  an  unconditional and
irrevocable  offer  by  the  Withdrawing  Party  to  convey to  the  Remaining
Party(ies) the  Withdrawing  Party's entire  Working Interest  in  all of  the
Leases, the  Production  System,  the  Hydrocarbon production  and  all  other
property and  equipment within a Contract  Area owned under the  terms of this
Agreement.    The  withdrawal  notice  shall  specify  an  effective  date  of
withdrawal which date shall be  at least sixty (60) days but not more than one
hundred eighty (180) days after the date of the withdrawal notice.

17.2  Response  to Withdrawal:   Within  thirty (30)  days of  receipt of  the
notice  of withdrawal,  eachof the  Remaining Parties  shall elect  in writing
either to  join in  the withdrawal  or to  remain a  Party to  this Agreement.
Failure  to respond  to a  withdrawal notice  shall be  deemed an  Election to
remain a Party to this Agreement.

      17.2.1      Unanimous Withdrawal:  If all the  Parties agree to  join in
      the withdrawal, no assignment of Working Interests  shall take place and
      the  Parties  shall be  deemed  to have  decided  to  abandon all  joint
      operations within  a Contract Area  pursuant to Article  18 (Abandonment
      and Salvage) of this Agreement.

      17.2.2      Acceptance  of  Withdrawing  Interests:  If  fewer than  all
      Parties agree to join in the withdrawal, then the Remaining Parties must
      accept  an  assignment  of  the Withdrawing  Party's  Working  Interest.
      Unless  otherwise  agreed  by  the Remaining  Parties,  the  Withdrawing
      Party's Working Interest shall be shared by  the Remaining Party(ies) in
      the  proportions which  each of  their Working  Interests (prior  to the
      withdrawal)  bear to the  sum of the Working  Interests of all Remaining
      Parties (prior  to the  withdrawal).   The Withdrawing  Party(ies) shall
      take all necessary steps to  accomplish the withdrawal by the  effective
      date and execute and deliver  to the Remaining Party(ies) all  necessary
      instruments to assign its Working Interests to the Remaining Party(ies).
      All expenses associated with the withdrawal and  the transfer of Working
      Interest shall be borne by the Withdrawing Party(ies).

17.3  Limitation Upon and Conditions of Withdrawal:

      17.3.1      Current Operations and Voting:   Any Party withdrawing prior
      to completion of any operations (pursuant to an AFE) on  a Contract Area
      in which it had previously made an Election to participate  shall remain
      fully liable for its share of the AFE.  After giving its notification of
      withdrawal, the  Withdrawing  Party shall  not be  entitled  to make  an
      Election to  participate  or vote  on  any  General Matter,  other  than
      General Matters  for  which the  Withdrawing Party  retains a  financial
      responsibility.

      17.3.2      Prior Expenses:   The  Withdrawing  Party(ies) shall  remain
      responsible  for  its  Participating  Interest  share of  any  Costs  of
      operations,  rentals, royalties,  taxes, damages  or other  liability or
      expense accruing  or  commencing prior  to  the  effective date  of  the
      withdrawal.  Prior to the effective date of the withdrawal, the Operator
      shall  render a final  statement to  the Withdrawing Party(ies)  for its
      share of  all  identifiable expenses  incurred prior  to  the notice  of
      withdrawal, along with a statement  of any deficiency in salvage  value.
      Prior to any withdrawal, a Withdrawing Party, at its sole expense, shall
      satisfy or provide security satisfactory to the remaining Party(ies) for
      all  obligations  and   liabilities  it  has   incurred  or  which   are
      attributable to  it  prior to  the  effective  date of  the  withdrawal.
      Furthermore,  any  liens,  charges  and  other  encumbrances  which  the
      Withdrawing  Party(ies) placed (or  caused to be  placed) on its Working
      Interest  prior to its  withdrawal shall be  fully satisfied or released
      prior  to its withdrawal  (unless the  Remaining Parties are  willing to
      accept the Working Interest  subject to such liens).  Provided  all such
      expenses (including any deficiency in abandonment Costs) have been paid,
      the notice of withdrawal and the assignments shall be effective upon the
      specified effective date.

      17.3.3      Abandonment Costs: The  Withdrawing Party(ies) shall  pay to
      the Operator for the benefit of the Remaining Party(ies) the Withdrawing
      Party's pro rata Working Interest  share of the estimated current  Costs
      of plugging  and  abandoning all  wells and  removal  of all  Production
      Systems, Facilities and other material and equipment serving a  Contract
      Area, less  its pro  rata share  of the estimated  salvage value  of the
      assets at the time of  abandonment.  Such Costs and salvage  value shall
      be prepared by the Operator according with Article IV of Exhibit "C" and
      approved as a General Matter.

      17.3.4      Confidentiality:  A Withdrawing Party  shall continue  to be
      bound by the confidentiality provisions of Article 7 (Confidentiality of
      Data) after  the  withdrawal, but,  as  of  the effective  date  of  the
      withdrawal,  shall  have  no  further access  to  technical  information
      relating to  joint  operations.   The  Withdrawing  Party shall  not  be
      required to  return to  the Remaining  Party(ies) any  Confidential Data
      acquired prior to  the effective date of the withdrawal.   The Remaining
      Party(ies)  shall   have  no   obligation  of  confidentiality   to  the
      Withdrawing Party.

      17.3.5      Emergencies and Force Majeure: No  Party shall be allowed to
      withdraw during  a  Force Majeure  or other  emergency  as described  in
      Article 25.1 (Force Majeure), but may withdraw from this Agreement after
      termination  of such  emergency.   The  Withdrawing  Party shall  remain
      liable  for its  share of all  Costs and  liabilities arising  from said
      emergency,  including but not  limited to the  drilling of relief wells,
      containment and  cleanup of  oil spills and  pollution and all  Costs of
      debris removal made necessary by the emergency.

                                  ARTICLE 18
                            ABANDONMENT AND SALVAGE

18.1  Abandonment  of   Wells:  Any   Participating  Party  may   propose  the
abandonment of a well which has been drilled as a joint operation by notifying
the other  Participating Parties.  If  approved as a General  Matter, the well
shall  be plugged and  abandoned in accordance  with applicable regulations at
the joint Cost and risk  of the Participating Parties.  If any  Party fails to
respond within the notice period specified  in Article 8.3 (Response Time  for
General Matters and  Elections), that Party shall be deemed  to have consented
to the abandonment of the well.

18.2  Facilities  and Production  System Salvage  and Removal Costs:  When the
Parties  owning a  Production  System, Facility  or  Subsea Production  System
desire to dispose of such equipment, such equipment disposal shall be approved
as  a General Matter.  Upon  approval as a General  Matter, the Operator shall
dispose of such equipment in the manner approved by the Participating Parties.
The Costs, risks  and net proceeds,  if any, resulting  from such  disposition
shall  be  shared  by  the  Participating  Parties   in  proportion  to  their
Participating Interests in the equipment.

18.3  Approval Not Required: The Operator  may, without prior approval of  the
Parties, dispose of any items of surplus or obsolete material and equipment if
the  current price of new materials or  equipment similar thereto is less than
One Hundred Thousand Dollars ($100,000.00).

18.4  Abandonment  Operations Required  by  Governmental  Authority: Any  well
abandonment or  Platform/Production System removal required  by a governmental
authority shall  be accomplished  by Operator  with the  Costs, risks  and net
proceeds, if any,  to be shared by the  Parties owning such well,  Platform or
Production System in proportion to their Participating Interest.

                                  ARTICLE 19
                   RENTALS, ROYALTIES AND MINIMUM ROYALTIES

19.1  Overriding  Royalties  and Burdens  on  Production:  If  any  Party  has
previously  created or  hereafter creates  any overriding  royalty, production
payment,  carried or reversionary  working interest,  net profits  interest or
other type of  burden on Hydrocarbon production  ilk addition to  the lessor's
royalty  stipulated  in  the Lease(s)  (an  "Overriding  Royalty"),  the Party
creating the Overriding Royalty  shall assume and bear all obligations  of the
Overriding   Royalty   regardless  of   that   Party's  participation   status
notwithstanding that an assignment of all or a portion of that Party's Working
Interest is  made to another Party  under this Agreement.   The Party creating
the  Overriding Royalty shall  indemnify and  hold all other  Parties harmless
from any and all claims and demands for payment asserted by the owners  of the
Overriding  Royalty.    Any  such agreements  creating  these  interests shall
contain provisions to effect this.

      19.1.1       Subsequent Creation of Overriding Royalty:  Notwithstanding
      anything herein to the contrary, if  subsequent to the execution of this
      Agreement,  any   Party  should  create  an   Overriding  Royalty,  such
      subsequently  created  Overriding  Royalty shall  be  made  specifically
      subject  to all the terms and provisions  of this Agreement and shall be
      subordinate to the rights of the other Parties to this Agreement.

      19.1.2      Subordination of Overriding  Royalties: If the Party  owning
      the Working Interest from which  the Overriding Royalty is created:  (a)
      fails to pay  when due its  share of Costs,  or (b) withdraws  from this
      Agreement, then the Overriding Royalty shall be  chargeable with its pro
      rata portion  of all  Costs (equal to  its fractional interest  in gross
      production) and  the security  rights created in  Article 6.3  (Security
      Rights) shall  be  applicable  against such  Overriding  Royalty.    The
      Operator shall  have the right  to enforce the security  rights (and all
      other  rights granted under  this Agreement)  against the owners  of the
      Overriding Royalty for the purpose of collecting Costs chargeable to the
      Overriding Royalty.

19.2  Payment  of Rentals and  Royalties: The  Operator shall make  all rental
payments  on behalf of the Parties for  the Contract Area.  The Operator shall
use reasonable  care to make proper and timely payment of all rentals, minimum
royalties or  other similar  payments accruing under  the terms of  the Leases
which are included within the Contract  Area.  Upon receipt of proper evidence
of all such payments and the Operator's invoice for its proportionate share of
all such payments, each Non-Operating  Party shall reimburse the Operator  for
the Non-Operating Party's Working Interest share of all such payments.  In the
event Operator fails to make  proper payment of any rental or  minimum royalty
or  similar payments accruing under the terms  of the Lease(s) through mistake
or oversight where such payment is required to continue a Lease in force, then
Operator shall not be liable to the other Parties for any resulting damages or
any loss which results from such nonpayment.

      19.2.1      Non-Participation in  Payments: If  any Party elects  not to
      pay its  share of any rental,  minimum royalty or similar  payment, such
      Non-Participating Party  shall notify the other Parties of its intention
      not to  pay its share of such payment at  least sixty (60) days prior to
      the date  on which  such  payment is  due.   Upon  this occurrence,  the
      Operator shall  make  such payment  solely for  the benefit  of all  the
      Participating  Parties.  The Non-Participating Party shall assign to the
      Participating Parties all of its  Working Interest in the Contract  Area
      or portion thereof, maintained by such payment.

      19.2.2      Royalty Payments: Each Party shall  pay or cause to be  paid
      all royalty  and other  amounts payable  out  of Hydrocarbon  production
      taken from the Lease(s) for its  account.  During any time in  which the
      Participating  Parties   in  a   Non-Consent  Operation  takes   a  Non-
      Participating Party's share of Hydrocarbon production, the Participating
      Parties shall  bear the  Lease royalty on  such Hydrocarbon  production.
      When necessary for calculating the recoupment of a Non-Consent Well, any
      Non-Operating  Party receiving  its share  of Hydrocarbon  production in
      kind shall advise the Operator (in writing on or before the tenth day of
      the  month following the  month in  which the Hydrocarbon  production is
      sold or  used off the premises)  of the volumes of  Hydrocarbons sold or
      used off  the  premises and  the prices  received  for such  Hydrocarbon
      production.

      19.2.3      Federal Offshore Oil Pollution  Compensation Fund Fee:  Each
      Party  agrees  to  pay  and  bear  the  Federal Offshore  Oil  Pollution
      Compensation Fund Fee payable on its share  of Hydrocarbon production or
      any  fees being required  by section 302 of  the Outer Continental Shelf
      Lands  Act of  1978, the Oil  Pollution Act  of 1990  and any subsequent
      statutes   and  regulations  promulgated  pursuant  to  those  statutes.
      However,  should the oil owned by  a Party be reported to  the MMS (or a
      successor regulatory agency) by another Party in its reporting form, the
      reporting Party shall pay the required fees  on all volumes reported and
      the non-reporting Party shall reimburse the reporting Party for all fees
      paid on its behalf

                                  ARTICLE 20
                                     TAXES

20.1  1nternal  Revenue Provision: Notwithstanding  any provisions herein that
the rights and liabilities  hereunder are several and not  joint or collective
or  that the  Agreement and  the operations  hereunder shall not  constitute a
partnership  under  state  law,  if,  for  federal  income tax  purposes,  the
Agreement  and the operations  hereunder are  regarded as a  partnership, each
Party, hereby elects to be excluded from the application of all or any part of
the provisions of Subchapter K, Chapter 1, Subtitle A, of the Internal Revenue
Code of 1986, as amended, or similar provisions of applicable state laws.

20.2  Other Taxes  and  Assessments: The  Operator,  on  behalf of  the  Joint
Account, shall file all tax returns and reports required by law and  shall pay
all applicable taxes  [other than income  or other taxes  provided in  Article
20.2.2 (Production and Severance Taxes)] or assessments levied with respect to
operations conducted under this Agreement.  The Parties shall promptly furnish
the  Operator  with  copies  of any  notices,  assessments  or  tax statements
received  pertaining to taxes to be paid by  the Operator.  The Operator shall
charge each Party its Working Interest share of all taxes and assessments paid
and, upon written request from  a Non-Operating Party(ies), provide copies  of
all  tax returns, reports,  tax statements and  receipts for such  taxes.  The
Operator  shall  not  allow  any  taxes  to  become  delinquent,  unless  such
nonpayment is approved as a General Matter.

      20.2.1      Property Taxes:    The  Operator, on  behalf  of  the  Joint
      Account, shall render for ad valorem property  tax purposes all personal
      property and/or  real  property covered  by  this  Agreement as  may  be
      subject  to such  taxation and  shall pay  such property  taxes for  the
      benefit of each Party.  The Operator shall timely and diligently protest
      to a final determination any  valuation it deems unreasonable.   Pending 
      such determination, the  Operator may elect to pay under  protest.  Upon
      final determination, the Operator shall pay the  taxes and any interest,
      penalty or cost accrued as a result of such protest.  The Operator shall
      charge each  Party  its Working  Interest  share  of such  tax  payments
      including  interest, penalties  and all  reasonable Costs  in accordance
      with Exhibit "C" (Accounting Procedure).

      20.2.2      Production  and Severance  Taxes: Each  Party shall  pay, or
      cause  to be paid,  all production, excise,  severance and other similar
      taxes  due on any  Hydrocarbon production which  it received pursuant to
      the terms of this Agreement.  Any Party responsible for such tax payment
      shall upon written request from the Operator, provide evidence that such
      taxes have been paid.

                                  ARTICLE 21
                              INSURANCE AND BONDS

21.1  Insurance:  The Operator shall  maintain the insurance coverage provided
in Exhibit "B" (Offshore Insurance Provisions) attached hereto and charge each
Party its Working Interest share of the Cost of such coverage.

21.2  Bonds:  Operator shall obtain and maintain any and all bonds required to
be carried by  any applicable law, regulation or rule.   Operator will require
all contractors to obtain and maintain all bonds required to be carried by any
applicable law, regulation or rule.

                                  ARTICLE 22
         LIABILITY, CLAIMS, LAWSUITS AND ALTERNATE DISPUTE RESOLUTION

22.1  Individual Obligations:  The obligations, duties and  liabilities of the
Parties shall be several and not joint or collective; and,  except as provided
in  Article 20  (Taxes), nothing contained  herein shall ever  be construed as
creating a  partnership,  joint venture,  association  or other  character  of
business entity  recognizable in law for  any purpose.  Each  Party shall hold
all the other Parties harmless from liens and encumbrances on the Leases or in
a Contract Area arising as a result of its acts or omissions.

22.2  Notice of Claim or Lawsuit: If a  claim is made against any Party or  if
any Party  is sued on account of any matter arising from operations hereunder,
or on any matter affecting the Leases or Contract Area, or if any hearings are
held pursuant  to  operations under  this  Agreement,  such Party  shall  give
written notice  of the  lawsuit or  hearing to  the other  Parties as soon  as
reasonably practicable.

22.3  Settlements: The Operator may settle any single  damage claim or lawsuit
involving operations hereunder if the expenditure does  not exceed Two Hundred
and  Fifty  Thousand Dollars  ($250,000)  and if  the  payment is  in complete
settlement  of such  claim or  suit.   If the  amount required  for settlement
exceeds such amount, the Parties shall  determine the further handling of  the
claim or suit pursuant to Article 22.4 (Defense of Claims and Lawsuits) below.

22.4  Defense of Claims and Lawsuits:  he Operator shall supervise the conduct
of any litigation.  During  litigation, suits may be settled in  excess of the
amount specified in Article 22.3  (Settlements) above only with the  unanimous
consent  of all Participating Parties in the  operation out of which the claim
arose; however,  any Party shall  have the  right to independently  settle any
claim which is attributable to  its interest alone as long as  such settlement
does  not  directly adversely  affect  the interest  or  rights  of the  other
Parties.    No charge  shall  be  made for  services  performed  by the  staff
attorneys of any Party, but all other expenses incurred by the Operator in the
defense  of suits for the Parties, together  with the amount paid to discharge
any final judgment,  shall be considered Costs of operation  and shall be paid
by the Parties in proportion to their Participating Interest  in the operation 
out of which the claim arose.  Outside counsel shall be employed only with the
approval of the affected Parties as a General Matter under Article 8.2 (Voting
Procedures on  General Matters and Elections).   If it is  agreed that outside
counsel is  to be employed,  the fees  and expenses  shall be  charged to  the
Parties in proportion  to their Participating Interest in the operation out of
which such claim arose in accordance with  Exhibit "C" (Accounting Procedure).
Each Party  shall also  have the right  to hire  its own outside  counsel with
respect to its own defense.

22.5  Liability for  Damages:  To the  extent allowed  by  law, liability  for
losses,  damages, Costs,  expenses, claims,  liabilities and  lawsuits arising
from  operations  under this  Agreement not  covered by  or  in excess  of the
insurance carried  for the  Joint  Account shall  be borne  by  each Party  in
proportion to  its Participating Interest in the  operations out of which such
liability arises, except when such liability results from the gross negligence
or willful misconduct of a Party(ies), in which case such  Party(ies) shall be
solely liable for same.

22.6  Indemnification  for Non-Consent  Operations: To  the extent  allowed by
law, the  Participating Parties agree  to hold  the Non-Participating  Parties
(and their  Affiliates, agents,  insurers, directors, officers  and employees)
harmless and  to  indemnify and  protect  them  against all  claims,  demands,
liabilities,  regulatory decrees  and  liens for  environmental pollution  and
property damage or personal injury, including sickness and death, caused by or
otherwise  arising  out  of  Non-Consent Operations,  and  any  loss  and cost
suffered by any Non-Participating Party  as an incident thereof, except  where
the negligent acts or omissions  of any Non-Participating Party contribute  to
that loss or cost.  Should any indemnity contained herein be determined to  be
in  violation  of  law   or  public  policy,  the  Parties  agree   that  said
indemnity(ies) shall then be enforceable only to the maximum extent allowed by
law.

22.7  Indemnification for  Prior  Operations: To  the extent  allowed by  law,
notwithstanding anything to the contrary in  this Agreement, a Party shall not
be liable to any other Party for any losses, damages, costs, expenses, claims,
liabilities  or lawsuits arising  from operations which  occurred prior to the
execution  of or joinder to this Agreement.   Furthermore, the Parties who are
responsible for  such pre-execution or pre-joinder  liability shall indemnify,
defend and hold harmless the aforesaid non-responsible Parties.

22.8  Damage  to  Reservoir, Loss  of  Reserves  and Profits:  Notwithstanding
anything to the contrary contained herein, no Party to this Agreement shall be
liable to  any  other Party  to this  Agreement for  loss  of or  damage to  a
reservoir(s),  loss  of Hydrocarbons,  or for  loss  of profits  or  for other
consequential or business interruption damages.

22.9  Non-Essential  Personnel:  A Party  hereto  who requests  transportation
and/or  access to a Production  System, vessel or  any other Facility utilized
for  Lease operations for any person who is not directly involved with a joint
or Non-Consent Operation under this Agreement, agrees to protect and indemnify
the  other Parties hereto as to any cost,  liability or judgment incurred as a
result of a  claim, demand, cause  of action  or suit brought  by such  person
arising  out of  said person's  transportation and/or  access to  a Production
System, vessel or any Facility utilized for Lease operations.  Notwithstanding
anything to the  contrary herein, any  such indemnification and/or  protection
provided herein shall be inapplicable where  the claim demand, cause of action
or suit  arises  out of  the  willful  misconduct, intentional  act  or  gross
negligence of the Party so indemnified and/or protected.

22.10 Dispute  Resolution  Procedure:  The   Parties  agree  that  any  claim,
controversy or dispute arising out of, relating to or in  connection with this
Agreement,  including  the  interpretation,  validity, termination  or  breach
thereof,  shall be resolved  solely in accordance  with the Dispute Resolution 
Procedure set forth in Exhibit "H" to this Agreement.

                           ARTICLE 23 CONTRIBUTIONS

23.1  Contributions from Third Parties: The Parties may seek to obtain support
from third partiesfor joint operations through contributions  of cash, acreage
or  data.  Any  Party may proposeto  seek support for  joint operations on the
Contract  Area through  contributions from  third parties.   Each  Party shall
notify all  other  Parties of  any  contribution  offers received  from  third
parties.  Any  proposal or offer  from third parties  shall be subject  to the
General Matter approval of the Parties  prior to either accepting the offer or
making such  a proposal.  Upon  General Matter approval, the  Operator, unless
otherwise agreed, shall negotiate all  contributions on behalf of the  Parties
(with prior  consultation of the Parties  and the prior agreement  of the cash
equivalent  value for any  non-cash consideration offered  or received).  Upon
receiving  a response  from a  third  party to  the  Operator's proposal,  the
Operator  shall notify  all of  the  Parties of  the proposal  and its  terms.
Within thirty (30) days of receipt of the Operator's notice, the Party's shall
vote as a  General Matter on  the proposal.   If a proposal  is approved as  a
General Matter, any  Party shall have the right to  decline participation in a
contribution and  be relieved of any obligations and benefits thereunder.  The
Participating Party(s) shall not be required to obtain the consent of the Non-
Participating Party regarding any contribution or trade.

      23.1.1      Cash  Contributions: In  the  event a  cash contribution  is
      accepted  towards the  drilling  of a  well,  in which  all  Parties are
      Participating Parties,  said cash contribution  shall be turned  over to
      the  Operator, and  the Operator  shall credit  the amount  of the  cash
      contribution against  the  Costs  of  the proposed  joint  operation  in
      proportion  to each Party's  Participating Interest.   In the  event the
      Participating Parties accept  a cash contribution toward the drilling of
      a well  where fewer than all Parties are Participating Parties, the cash
      contribution shall be credited among  the Participating Parties in  such
      well to the extent that each Participating Party shall receive a portion
      of  the contribution equal  to its  Participating Interest in  the well.
      The cash contribution  shall be deducted  from the cost of  drilling and
      completing  the  well  prior to  computation  of  the Recoupment  Amount
      Participating Parties  shall be entitled  to receive out  of Hydrocarbon
      production from the Non-Participating Parties in accordance with Article
      16.0  (Non-Consent Operations).

      23.1.2      Acreage  Contributions: Any  contribution of  acreage toward
      the  drilling of  a joint  well shall  be  offered, without  warranty of
      title, to the Participating Parties in proportion to their Participating
      Interests.   If  all of  the Parties  to this  Agreement participate  in
      accepting  their share  of the  assignment of  the acreage,  the acreage
      shall become  a part of the  Contract Area and  subject to the  terms of
      this Agreement.  Any acreage contribution in which less than all Parties
      are Participating Parties shall, to  the extent possible, be subject  to
      the  terms  of an  Operating  Agreement  substantially similar  to  this
      Agreement,  and shall apply  separately to  the acreage acquired  by the
      Participating Parties.

      23.1.3      Data   Contributions:   Contributions   of   geoscience   or
      engineering data offered by third parties in support of joint operations
      shall be handled pursuant to Article 7.0  (Confidentiality of Data), and
      may   be  accepted  by   the  Participating  Parties   so  long  as  the
      confidentiality of  any data  belonging to Non-Participating  Parties is
      preserved.  No data  owned by a Non-Participating Party  may be included
      in  any data contribution  without the consent  of the Non-Participating
      Party.

23.2  Restricted Bidding:  If at any  time during the term  of this Agreement,
more than one of the Parties  are on the list of restricted joint  bidders for
OCS lease  sales as issued by  the Minerals Management Service  pursuant to 30
CFR 256.44, then the Parties agree to comply with all statutes and regulations
regarding restricted joint  bidders on the  OCS in effect  during the term  of
this Agreement.   In the case of multiple restricted  bidders being Parties to
this Agreement,  the provisions of this  Agreement shall be amended  to delete
those provisions  which  would otherwise  require a  transfer  of a  leasehold
interest prohibited by 30 CFR 256.44(c).

                                  ARTICLE 24
                ASSIGNMENTS AND PREFERENTIAL RIGHT TO PURCHASE

24.1  Assignments  and Transfers of  Working Interests: All  of the Parties to
this Agreement  agree to  give prior  written notice to  the Operator  and the
other Parties of any proposed assignment, transfer or other disposition of all
or a portion  of a Party's Working  Interest covered by  this Agreement.   Any
assignment of a Working Interest covered by this Agreement shall  be made to a
financially  responsible  assignee  and  shall  be  further  subject  to  this
Agreement and the following provisions:

      24.1.1      Exceptions  to  Prior  Written  Notice:  Notwithstanding any
      provision  of this Agreement  to the contrary,  an assigning Party shall
      not be required  to provide prior written notice with  respect to any of
      the following:

      (i)   A  Party  seeking  to mortgage,  pledge,  hypothecate  or  grant a
            security interest in all or a  portion of its Working Interest  in
            the Leases, any equipment or  Facilities or each Party's share  of
            Hydrocarbon  production  from  a  Contract  Area.    However,  any
            encumbrance  arising  from  the  financing  transaction  shall  be
            expressly subordinated to the rights of the  other Parties to this
            Agreement, and the assigning Party  shall ensure that any mortgage
            or  encumbrance shall be  without prejudice  to the terms  of this
            Agreement; or,
      (ii)  A Party assigning all or an undivided part of its Working Interest
            to an Affiliate.

      24.1.2      Effective Date of Assignments: Except as otherwise  provided
      in this  Agreement, the effective  date for  any assignment shall  be at
      least sixty  (60) days but not  more than one hundred  eighty (180) days
      after the date  of the written notice.  No  assignment, other than those
      allowed by Article 24.1.1 (Exceptions to Prior Written Notice), shall be
      binding upon the Parties unless  and until (i) the assignor  or assignee
      provide all  remaining  Parties with  a photocopy  of  a fully  executed
      assignment, and an executed MMS Form 1123,  Designation of Operator" and
      (ii)  receipt  of  any  necessary  approval by  the  Mineral  Management
      Service.  The Parties shall promptly join in such reasonable  actions as
      may  be necessary to secure such approvals and shall execute and deliver
      any   and  all  documents  reasonably   necessary  to  effect  any  such
      assignment.  Any  costs attributable to such an assignment  shall be the
      sole obligation of the assignor.

      24.1.3      Minimum  Transfer  of  Interest: Unless  unanimously  agreed
      otherwise, any transfer to a  third party shall be limited to  a minimum
      Working  Interest of twelve  and one-half percent  (12.50%) in an entire
      Contract  Area.   No  assignment or  transfer of  any  interest in  this
      Agreement or  any Lease or lands subject to this Agreement shall be made
      that is  not an undivided Working  Interest in all of  a Party's Working
      Interest  in  a  Contract  Area unless  otherwise  provided  under  this
      Agreement.  This limitation on any sale or farmout shall terminate after
      Election to participate in the Fabrication AFE.  If the Working Interest
      of any Party is subsequently conveyed or  distributed to other entities,
      so that any one of  them owns a Working Interest of less than twelve and 
      one-half percent (12.50%), such  entities collectively shall be entitled
      to  only a single  joint representative at  meetings of  the Parties and
      shall vote or act collectively  on all General Matters or  Participation
      Elections.  Such Parties shall be entitled to only a single set of logs,
      samples,  information and reports  and shall  be considered as  only one
      Party for all purposes under this Agreement.

      24.1.4      Form  of Assignments: Except  in those  certain transactions
      set forth  in  Article 24.2.3,  any  assignment of  any  interest in  or
      subject  to  this  Agreement   shall  incorporate  provisions  that  the
      assignment is inferior to and  made expressly subject to this  Agreement
      and providing for  the assumption by the assignee of  the performance of
      all of assignor's obligations under this Agreement.   Any assignment not
      in compliance with this provision shall be voidable by the non-assigning
      Parties.

      24.1.5      Limited Warranty: Any  assignment, vesting or relinquishment
      of  Working Interest between  the Parties under  this Agreement shall be
      made  without  warranty  of title;  however,  all  encumbrances made  by
      assignor or known by assignor shall be disclosed to assignee.

24.2  Preferential Right  to  Purchase:  Subject to  the  provisions  of  this
Agreement, each Party shall have the right to freely transfer and alienate its
Working Interest.  Any transfer of all or an undivided interest in the Party's
Working  Interest, directly or  indirectly, shall be  subject to the following
provisions:

      24.2.1      Notice  of  Proposed  Transaction:  Should  any  Party  (the
      "Assignor") desire to  dispose of all  or an  undivided interest in  its
      Working  Interest  in  a  Contract Area  (whether  offered  as  a single
      property disposition or as part of a multi-property disposition) through
      one of the following type transactions:

            farmout(s)
            cash sale(s); or,
            non-simultaneous like-kind exchange(s)

      and  has received  a  bona fide  offer  (whether from  a  Party to  this
      Agreement or from a third party) which the Assignor is willing to accept
      for the purchase or  other acquisition of the Working Interest,  each of
      the remaining Parties to this Agreement shall  have a preferential right
      to  purchase  all  or  a Party's  proportionate  share  of  such Working
      Interest.   In such case, the Assignor shall promptly give prior written
      notice of the proposed transaction to  the other Parties.  The notice of
      the proposed  transaction shall provide full  information concerning the
      transaction including at least:

            the  name and address  of the  prospective purchaser (who  must be
            ready, able and willing to acquire the interest),
            the  purchase price  or other  consideration offered  (which shall
            include the  monetary  quivalent in  U.S. Dollars  based upon  the
            reasonable market value of any consideration other than cash), and
            all other material terms of the offer.

      24.2.2      Exercise of Preferential Right to Purchase:  For a period of
      thirty (30) days from receipt of the notice, the remaining Parties shall
      have the optional right to elect to acquire the Working Interest offered
      (on the same terms and conditions, or on equivalent terms for a non-cash
      transaction as stated in the notice) without reservations or conditions.
      The Election  to exercise  the preferential right  shall be made  by the
      exercising Party giving the Assignor  written notice of its Election  to
      purchase prior to the  expiration of the thirty (30) day period.   If an
      Election  to preferentially  purchase  is made,  the  Assignor shall  be 
      required to transfer the Working Interest to the Party at  the price and
      on  the  terms  specified  in the  notice.    The  transaction  shall be
      concluded within a  reasonable time, but  no later than sixty  (60) days
      after  receipt  of the  Election  to  preferentially  purchase  (plus  a
      reasonable time  to secure  all necessary  governmental approvals).   If
      more than one Party elects to acquire the Working Interest offered, then
      each  Party shall acquire  a proportion of  the Working Interest offered
      equal to the ratio its own pre-acquisition Working Interest bears to the
      total pre-acquisition Working Interests of all acquiring Parties (unless
      the acquiring Parties agree upon a different ratio).  If  only one Party
      elects to  acquire  the Working  Interest offered,  it  may require  the
      assignor to  transfer all of the  Working Interest offered, but  may not
      require the transfer of less than all Working Interest offered.

      24.2.3      Transactions  Not  Affected  by  the  Preferential Right  to
      Purchase: This preferential right to  purchase shall not exist or  apply
      when a Party proposes to:

            (a)   mortgage  its interest (including assignments of Hydrocarbon
                  production executed as further security for the debt secured
                  by such mortgage), or
            (b)   exchange  all  or  an  undivided  interest  in  its  Working
                  Interest  in  the  Contract  Area  for  property  identified
                  outside the Contract Area at the time of the exchange, or
            (c)   dispose of its Working Interest by:

                        merger, reorganization or consolidation;
                        a sale or  other transfer  of substantially  all of  a
                        Party's assets in the Gulf of Mexico; or
                        a sale or other transfer to an Affiliate.

      24.2.4      Completion  of the  Transaction:  If none  of the  remaining
      Parties elect to exercise its preferential right to purchase the Working
      Interest  offered, the Assignor  shall be free  to complete the proposed
      transaction on  the  terms disclosed  in the  notice.   However, if  any
      proposed transaction  is not completed  within one hundred  twenty (120)
      days from  the  expiration of  the thirty  (30)  day preferential  right
      Election  period  (plus  a  reasonable  time  to  secure  any  necessary
      governmental approvals) or, if the terms of the proposed transaction are
      amended  in  any way,  the  proposed  transaction  shall  be  considered
      withdrawn and the Working Interest offered shall again be subject to the
      preferential right to purchase as if the originally proposed transaction
      had never been proposed.

                                  ARTICLE 25
                                 FORCE MAJEURE

25.1  Force  Majeure: If as  a result of  Force Majeure any  Party is rendered
unable,  wholly or in part, to carry  out its obligations under this Agreement
(except for  the payment of  money) then the  obligations of the  Party giving
such notice, so far as and to the extent that the obligations are  affected by
such Force Majeure, shall be suspended during the continuance of any inability
so caused, but for no  longer period.  For purposes of  this Agreement, "Force
Majeure" shall be inclusive of but not limited to the following events: flood,
hurricane  or  other  acts  of  God;  a  fire,  blowout,  oil  spill or  other
environmental  catastrophe;  war,  civil disturbance,  labor  dispute, strike,
lockout,  compliance with  any law,  order,  rule or  regulation, governmental
action  or delay  in  granting  permits  or permit  approvals  as  needed;  by
inability to secure  materials or rig; or by any  other cause, whether similar
or  dissimilar, beyond the  reasonable control of  the said Party.   The Party
claiming Force  Majeure shall notify  the other  Parties of the  Force Majeure
situation within a reasonable time (not  to exceed thirty (30) days) after the
occurrence of  the facts relied  on and shall keep  all Parties informed  of A 
significant developments.  The notice of Force Majeure shall give full details
of said  Force Majeure,  and also  (if possible) estimate  the period  of time
which said  Party  will require  to  remedy the  Force  Majeure or  to  resume
performance of its obligations under this Agreement.  The affected Party shall
use  all  reasonable  diligence  to  remove  or  overcome  the  Force  Majeure
situation, but  shall not be obligated  to settle any labor  dispute except on
terms acceptable to it and all such disputes shall be handled within  the sole
discretion of the affected Party.

                                  ARTICLE 26
                           ADMINISTRATIVE PROVISIONS

26.1  Term of Agreement: This Agreement shall become binding upon execution by
all  Parties  with an  effective date  as set  forth in  the preamble  to this
Agreement.   This Agreement shall remain in effect from the effective date and
for so long as any of the Leases in a Contract Area shall remain in effect  or
until all  assets and  operations have  been turned over  to a  single Working
Interest owner.   Termination of this  Agreement shall  not relieve any  Party
from any  Costs or liability accrued  or incurred prior to  the termination of
this Agreement, and  the provisions of this Agreement  shall continue in force
for such additional time as necessary until:

      (a)   all wells have been plugged and abandoned;
      (b)   all  property and equipment  in a  Contract Area belonging  to the
            Parties are disposed of by the Operator and all claims or lawsuits
            have been settled or otherwise disposed of, and,
      (c)   a  final  accounting  and  settlement has  been  made  under  this
            Agreement (including settlement of  any gas imbalances pursuant to
            Exhibit "D").

      The Operator shall have a reasonable period of time after the occurrence
of an  event of termination in  which to conclude the  administration of joint
operations and to make a distribution of assets.  During this period  of time,
the Operator shall continue to have and shall exercise all  powers granted and
meet all  duties  imposed by  this  Agreement  until all  provisions  of  this
Agreement are fully executed.

26.2  Time  Limits: Time  is of  the essence  in this  Agreement and  all time
limits shall be  strictly construed and enforced.  The failure or delay of any
Party in the enforcement of the rights granted under this  Agreement shall not
constitute a waiver of said  rights nor shall it be considered as  a basis for
estoppel.  Such Party may exercise its rights under this Agreement despite any
delay or failure to enforce the rights when the right or obligation arose.

26.3  Waiver of Right  to Partition: Each Party for itself  and its successors
and assigns waives the right to bring an action for partition of  its interest
in the Leases  and lands or personal property held  subject to this Agreement,
and covenants  that during the existence of this Agreement it shall not resort
at any  time to  any action at  law or in  equity to  partition any or  all of
Leases and lands or personal property subject to this Agreement.

26.4  Compliance With Laws and Regulations: This Agreement, and all operations
conducted by the Parties pursuant to this Agreement, are expressly subject  to
and shall  comply with all laws, orders, rules and regulations of any federal,
state  or  local governmental  authority having  jurisdiction over  a Contract
Area.  No Party shall  suffer a forfeiture or be liable in damages for failure
to comply with any of  the provisions of this Agreement if such  compliance is
prevented by or  if such failure  results from compliance with  any applicable
law, order, rule or regulation.

      26.4.1      Applicable  Law: THE  PROVISIONS OF  TH1S AGREEMENT  AND THE
      RELATIONSHIP OF  THE PARTIES SHALL BE GOVERNED AND INTERPRETED ACCORDING
      TO  FEDERAL LAWS  AND  LAWS OF  STATE  OF  LOUISIANA WITHOUT  REGARD  TO 
      PRINCIPLES OF CONFLICTS OF LAWS THAT WOULD REFER THE MATTER  TO THE LAWS
      OF ANOTHER  JURISDICTION.   UNDER  NO CIRCUMSTANCES  WILL  ANY PARTY  BE
      LIABLE  TO  THE OTHER  FOR  PUNITIVE  DAMAGES, CONSEQUENTIAL,  INDIRECT,
      UNFORESEEN, LOSS OF PROFIT, OR OTHER INDIRECT  OR PENALTY DAMAGES EITHER
      IN LAW OR EQUITY.

      26.4.2      Severance  of  Invalid Provisions:  In  case  of a  conflict
      between the  provisions  of this  Agreement and  the  provisions of  any
      applicable  laws  or   regulations,  the  provisions  of   the  laws  or
      regulations shall govern over the provisions of this Agreement.  If, for
      any reason and for so long as, any clause or provision of this Agreement
      is held  by  court of  competent jurisdiction  to  be illegal,  invalid,
      unenforceable  or unconscionable  under any  present or  future  law (or
      interpretation thereof),  the remainder of  this Agreement shall  not be
      affected by such illegality or  invalidity.  Any such invalid  provision
      shall be  deemed severed  from this Agreement  as if this  Agreement had
      been executed  with the  invalid provision  eliminated.   The  surviving
      provisions of  this  Agreement shall  remain in  full  force and  effect
      unless  the  removal of  the invalid  provision destroys  the legitimate
      purposes of this Agreement; in which event this Agreement shall be  null
      and void.   The Parties shall  negotiate in good faith  for any required
      modifications to this Agreement.

      26.4.3      Fair and Equal Employment: Each  of the Parties is an  Equal
      Opportunity Employer.  To the extent that this Agreement may  be subject
      to Executive Order 11246,  as amended, the equal opportunity  provisions
      (41  CFR  60-1) are  incorporated  herein  by reference.    If the  Non-
      Discrimination  in the  OCS  provisions  of 30  CFR  270  apply to  this
      Agreement  and the operations  conducted under it,  the provisions of 30
      CFR 270 are also incorporated  by reference.  To the extent  required by
      applicable laws  and regulations,  this Agreement  also includes and  is
      subject to  the affirmative action clauses  concerning disabled veterans
      and veterans  of the  Vietnam era  (41 CFR  60-250) and the  affirmative
      action clauses concerning employment of the handicapped (41 CFR 60-741),
      which clauses are incorporated herein by reference.   In performing work
      under this Agreement, the Parties agree to comply with (and the Operator
      shall  require   each  independent   contractor  to  comply   with)  the
      governmental  requirements set  forth  in Exhibit  "E" attached  hereto,
      pertaining  to nonsegregated facilities.  This Agreement and the Parties
      are also subject to any  other applicable rules and regulation  relating
      to nondiscrimination  that may be  promulgated from time to  time by any
      governmental  body having jurisdiction  over the subject  matter of this
      Agreement-

26.5  Construction and  Interpretation of This  Agreement: The  interpretation
and construction  of the  terms  of this  Agreement will  be  governed by  the
following conventions:

      26.5.1      Headings  for   Convenience:    Except  for  the  definition
      headings  contained  in  Article  2  (Definitions),  all  the  table  of
      contents, captions,  numbering sequences and paragraph  headings used in
      this Agreement  are inserted for  convenience only and  shall in  no way
      define, limit or  describe the scope or intent of  this Agreement or any
      part thereof, nor have any  legal effect other than to aid  a reasonable
      interpretation of this Agreement.

      26.5.2      Gender and Number:  The  use of pronouns in whatever  gender
      or number  shall be deemed  to be a proper  reference to the  Parties to
      this Agreement though the Parties  may be individuals, business entities
      or groups thereof Any necessary grammatical changes required to make the
      provisions of this Agreement refer to the correct gender or number shall
      in all instances be assumed as though each case was fully expressed. 

      26.5.3      Independent Representation:  Each  Party has had the benefit
      of independent representation with respect to the subject matter of this
      Agreement.    This  Agreement,  though  drawn  by  one Party,  shall  be
      construed  fairly and  reasonably and  not more  . strictly  against one
      Party than another.

26.6  Integrated Agreement: This Agreement  and the exhibits attached thereto,
contain the  final and  entire Agreement  of the Parties  with respect  to the
subject matter of this contract.  There are no representations, warranties  or
promises,  oral or  written between the  Parties other than  those included in
this Agreement.

      Upon execution of this Agreement,  by all Parties, this Agreement  shall
supersede and  replace all previous negotiations,  understandings or promises,
whether written or  oral, relative to the subject of this  Agreement.  Each of
the  Parties  acknowledges  that  no   other  Party  has  made  any   promise,
representation or warranty that is not expressly stated in this Agreement This
Agreement  shall  not be  modified or  changed except  by a  written amendment
signed  by  all  the  Parties.    This Agreement  is  entire  as  to  all  the
performances  to  be  rendered under  it  and breach  of  any  provision shall
constitute a breach of the entire Agreement.

26.7  Execution of Documents:

      26.7.1      Binding  Effect: This  Agreement shall  be binding  upon and
      inure  to the benefit of the Parties and their respective successors and
      assigns and shall constitute a covenant running with the land and Leases
      comprising a Contract  Area.  This Agreement does not  benefit or create
      any rights in any person or entity not a Party to this Agreement.
      26.7.2      Corporate  Authority:   If  any  Party  is  a legal  entity,
      including  but  not  limited  to,  an  association,  corporation,  joint
      venture,  limited   partnership,  partnership   or  trust,   such  Party
      represents to the other  Parties that the execution and delivery of this
      Agreement and  the completion  of transactions contemplated  herein have
      been duly  authorized by  all necessary  corporate  proceedings or  have
      received all necessary management approvals.

      26.7.3      Further  Assurances:  Each Party further  agrees to take any
      and all  actions necessary and sign  any and all documents  necessary to
      implement the terms of this Agreement.  Any necessary documents (e.g., a
      Designation  of Operator, etc.)  shall be  prepared and executed  by all
      Parties within thirty (30)  days from the  receipt of a written  request
      for same from any Party.

      26.7.4      Multiple Counterparts:   This  Agreement may be  executed by
      signing  the original or  a counterpart thereof.   If  this Agreement is
      executed  in multiple counterparts, each counterpart  shall be deemed an
      original and all of  which when taken together shall  constitute but one
      and the same Agreement with the same effect as if all Parties had signed
      the same  instrument.  This Agreement  may also be ratified  by separate
      instrument referring to this Agreement and adopting by reference all the
      provisions of this Agreement.  A ratification shall have the same effect
      as an execution of the original Agreement.

      IN  WITNESS WHEREOF, each  Party, through  its duly authorized  agent or
representative,  has executed this  Agreement effective  as of the  date first
above written.

WITNESSES                                 SHELL DEEPWATER DEVELOPMENT INC.

__________________            BY: ______________________________

__________________            ITS:Attorney-in-Fact______________ 

                              Date: ____________________________



                              READING & BATES DEVELOPMENT CO.

__________________            BY: _____________________________

__________________            ITS: ____________________________

                              DATE: ___________________________



                                 EXHIBIT "A-1"

Attached to and  made a part of the Joint  Operating Agreement dated effective
______________, by and between Shell Deepwater Development Inc.
and Reading & Bates Development Co.


Lease    Block    Effective   Expiration        Gross
Number   Number   Date        Date              Acres

Royalty  ORR      Lease Ownership


                                 EXHIBIT "A-2"

         Attached to and made a part of the Joint Operating Agreement
dated effective _______________by and between Shell Deepwater Development Inc.
                      and Reading & Bates Development Co.


WORKING INTEREST OF THE PARTIES, OPERATOR AND REPRESENTATIVES


I.    Prospect Area


II.   Working Interest of the Parties


III.  Operator


IV.   Addresses                           Names of Representatives


                                  EXHIBIT "B"

         Attached to and made a part of the Joint Operating Agreement
  dated effective _______________ by and between Shell Deepwater Development
                                     Inc.
                      and Reading & Bates Development Co.

                         OFFSHORE INSURANCE PROVISIONS

I.    WORKERS COMPENSATION & EMPLOYERS LIABILITY INSURANCE 
Operator  will  carry Workers  Compensation insurance  in compliance  with all
State and Federal Regulations in the  jurisdiction where any of the work under
this  agreement shall be  performed, including the  following special coverage
extensions:

      1. Employers' Liability coverage with limits of not less than $1 Million
         per accident.

      2. U.S. Longshoremen and Harbor Workers' Act and Outer Continental Shelf
         Lands Act coverage.

      3. Employers' Liability  arising out  of  Maritime operations  including
         coverage for benefits and damages under the Jones  Act with limits of
         at least $1,000,000 per occurrence.

      4. "In Rem" endorsement providing that a claim "In Rem" shall be treated
         as a claim against the Operator.

      5. Waiver of Subrogation endorsement which waives the insurers rights of
         subrogation against all of the Parties to this agreement.

Premiums  for the  insurance above  specified shall  be charged  to  the Joint
Account.   Provided,  however, that  if the  Operator  either self-insures  or
effectively self-insures, the Operator shall  charge to the joint account,  in
lieu  of any premiums for such insurance, an  amount not to exceed the workers
compensation  manual rates times  the payroll.   Claims under Operator's self-
insurance program shall not be charged to the joint account.

Except as provided  above, Operator shall not be obligated  to obtain or cause
to be carried insurance for the benefit of the joint  account.  Operator shall
not obtain  or cause  to be  carried for  the  benefit of  the joint  account,
control of well or seepage  and pollution insurance nor insurance  against the
hazards of  fire, windstorm, explosion, blowout,  cratering, reservoir damage,
or insurance other than specified above.

II.   INSURANCE NOT CHARGED TO THE JOINT ACCOUNT

At  all times while the Joint Operating Agreement  is in effect, each party to
the Agreement shall  insure or self-insure for their share  of any liabilities
assumed  under the Joint Operating Agreement.   The cost of these insurance or
self-insurance programs  shall be the  individual responsibilities of  each of
the  parties and  none of  the cost  associated with  these programs  shall be
charged  to the  Joint Account.   Each party  shall insure  or self-insure the
following coverage for the minimum limits stated.

      1. Commercial General  Liability Insurance  covering all of  the Parties
         operations,  including  their   offshore  operations,  and  including
         contractual  liability coverage  with  combined single  limits of  at
         least $10,000,000 per occurrence and in the annual aggregate.

      2. Automobile  Liability  covering  all   owned,  non-owned  and  leased
         vehicles  with  combined single  limits  of at  least  $1,000,000 per
         occurrence and in the annual aggregate.

      3. Pollution Liability insurance  covering offshore  oil pollution  with
         limits of at least $10,000,000 per occurrence.

      4. Physical  Damage  insurance  and   coverage  for  Wreck  Removal  for
         Facilities covered by the Joint  Operating Agreement, with limits not
         less than the Parties share of the replacement cost of the facility.

      5. Control of Well and Seepage and Pollution insurance with limits of at
         least $10,000,000 per occurrence. 

      6. Non-owned aviation  liability insurance  in the amount  of $1,000,000
         per occurrence covering liability arising out of any  leased aircraft
         used in  the connection with the work to be performed under the Joint
         Operating Agreement.

All of the above coverages shall be  endorsed to waive the insurers' rights of
subrogation against Operator  and all  other Parties  to the  Agreement.   Any
Party to the Agreement,  at the request of  any other Party to the  Agreement,
shall advise all of the other  Parties to the Joint Operating Agreement  as to
whether  it will  insure  or  self-insure the  above  mention coverages.    If
Insurance  is purchased, upon request, a Party  will provide all other Parties
to  the Joint Operating  Agreement with a  certificate of insurance evidencing
that all of the above insurance acid special insuring provisions are in place.

In  the  event a  Party  elects  to  self-insure  all  or part  of  the  above
requirements, and if any of the other Parties to the Joint Operating Agreement
believe  or  have  a concern  that  the  Party  does  not have  the  financial
capability to  meet its  obligations under  such self-insurance  programs, any
Party to  the Agreement may  request any other Party  to provide proof  of its
ability to  self-insure  these risks.   Proof  will  consist of  independently
audited financial statements demonstrating Net Worth and  assets in the United
States in an amount at  least equal to six (6)  times the amount of the  above
required insurance that the Party elects to  self-insure. If the self-insuring
Party is unable to meet that test, the other Parties to the Agreement may, but
are not required to do so, purchase any or all of the insurance that the Party
elected  to  self-insure.   The  cost  of  said  insurance  shall be  for  the
individual account of the Party on whose behalf the insurance was purchased.

III.  CONTRACTORS INSURANCE

Operator (including any Party conducting Non-Consent Operations) shall use its
best efforts  to require each  contractor who performs  work on behalf  of the
Joint  Operating  Agreement  to  carry  the  following insurance  and  special
insuring provisions.

1.    Workers'  Compensation and Employers'  Liability insurance in accordance
      with  all State and  Federal Regulations  in the jurisdiction  where the
      work  is to  be performed.   This  coverage shall contain  the following
      special endorsements:

      a. Employers' Liability coverage with limits of not less than $1,000,000
         per accident.
      b. U.S. Longshoremen and Harbor Workers' Act and Outer Continental Shelf
         Lands Act coverage.
      c. Employers'  Liability arising  out  of Maritime  operations including
         coverage for benefits and damages under the Jones  Act with limits of
         at  least $1,000,000 per  person and  $2,000,000 all persons  any one
         occurrence.
      d. "In Rem" endorsement providing that a claim "In Rem" shall be treated
         as a claim against the Contractor.
      e. "Borrowed Servant" endorsement providing that a Workers' Compensation
         claim brought  against Operator or  any Party to the  Agreement, by a
         Contractors  employee   will  be  treated  as  a  claim  against  the
         Contractor.
      f. Waiver of Subrogation endorsement which waives the insurers rights of
         subrogation against all of the Parties to this agreement.

2.    Commercial   General   Liability  insurance   and/or   Excess  Liability
      insurance,  including  contractual   liability  covering  the  indemnity
      obligations assumed in the contract with Operator,  with combined single
      limits of $5,000,000 per occurrence for  injuries to or death of persons
      and damage to property. 

3.    Automobile Liability  insurance covering all owned,  non-owned and hired
      vehicles  with  combined  single  limits  of  at  least  $1,000,000  per
      occurrence for injuries to or death of persons and damage to property.

4.    In  the event  watercraft is  used by  the Contractor,  contractor shall
      carry or  require  owners of  such watercraft  to  carry Protection  and
      Indemnity  Insurance in the amount of not  less than the market value of
      the vessel or $1,000,000, whichever is greater.

5.    If Contractor's operations require it to  use aircraft, Contractor shall
      carry or require the owners of such aircraft to carry aircraft liability
      insurance with a combined single limit of $500,000 per passenger seat or
      $1,000,000, whichever is greater.

6.    Any other insurance that Operator deems necessary.

7.    All of  the  insurance carried  by Contractors  pursuant  to Sections  2
      through 6 above shall contain  endorsements waiving the insured's rights
      of subrogation against Operator and all other Parties to the Agreement.

Operator shall make a  good faith effort to  obtain all of the above  required
insurance and s)special insuring  provisions.  Operator shall also make a good
faith effort  to  obtain endorsements  naming the  Operator  as an  Additional
Insured on the policies of insurance where appropriate and to provide that the
word 'Insured! also includes any Party, Co-Owner or Joint Venturer.   However,
Operator  shall not be liable  to non-operators or  to their parent companies,
subsidiaries or any affiliated companies  for failure to do any of  the above.
It  is recognized  in  the industry  that there  are  certain contractors  and
service  companies whose services are necessary  to operations contemplated by
the Parties, who as a matter of their policy refuse contractually to indemnify
working  interest  owners or  to  carry  any  insurance  indemnifying  Working
Interest owners.  As to those  entities, Operator may waive any requirement of
contractual indemnity  or any  or all  of the  insurance or special  insurance
provisions required above.

IV.   NOTICE

Operator shall promptly  notify Non-operators of any loss, damage or claim not
covered by the insurance obtained hereunder for the joint account.  All losses
which are not covered and all losses in  excess of insurance coverage shall be
borne  by the  Parties in  accordance with  the terms  of the  Joint Operating
Agreement under which said operations are being conducted by the Parties.


                                  EXHIBIT "C"

Attached to and made a part of

                             ACCOUNTING PROCEDURE
                           OFFSHORE JOINT OPERATIONS

I.  GENERAL PROVISIONS

1.    Definitions

      "Joint  Property" shall mean  the real and  personal property subject to
      the Agreement to which this Accounting Procedure is attached.
      "Joint Operations" shall mean all operations necessary to proper for the
      development,  operation,   protection  and  maintenance   of  the  Joint
      Property.
      "Joint  Account" shall  mean the  account showing  the charges  paid and
      credits received in the conduct of the Joint Operations and which are to
      be shared by the Parties. 
      "Operator"  shall  mean  the  party  designated  to  conduct  the  joint
      Operations.
      "Non-Operators" shall mean the Parties  of the Agreement other than  the
      Operator.
      "Parties" shall mean Operator and Non-Operator.
      "First  Level  Supervisors" shall  mean  those  employees whose  primary
      function  in  Joint  Operations  is  the  direct  supervision  of  other
      employees and/or  contract labor directly employed on the Joint Property
      in a field operating capacity.
      "Technical  Employees" shall  mean  those employees  having special  and
      specific engineering, geological or other professional skills, and whose
      primary function  in  Joint  Operations  is  the  handling  of  specific
      operating conditions and professional skills, and whose primary function
      in Joint Operations is the handling of specific operating conditions and
      problems for the benefit of the Joint Property.
      "Personal Expenses" shall mean  travel and other reasonable reimbursable
      expenses of Operator's employees.
      "Material" shall mean personal  property, equipment or supplies acquired
      or held for use on the Joint Property.
      "Controllable  Material" shall  mean Material  which at  the time  is so
      classified  in  the  Material  Classification Manual  as  most  recently
      recommended by the Council of Petroleum Accountants Societies.
      "Shore  Base  Facilities" shall  mean  onshore  support facilities  that
      during  drilling,  development,  maintenance  and  producing  operations
      provide  such  services   to  the  Joint   Property  as  receiving   and
      transshipment point for  supplies, materials and  equipment, debarkation
      point for drilling and production personnel and services; communication,
      scheduling and dispatching center; other associated functions benefiting
      the Joint Property.
      "Offshore Facilities" shall  mean platforms and support systems  such as
      oil  and  gas  handling  facilities, living  quarters,  offices,  shops,
      cranes, electrical supply equipment and  systems, fuel and water storage
      and  piping,  heliport,  marine  docking   installations,  communication
      facilities, navigation  aids, and other similar  facilities necessary in
      the conduct of offshore operations.

2.    Statement and Billings

      Operator shall  bill Non-Operators  on or  before the  last day  of each
      month  for  their  proportionate  share of  the  Joint  Account  for the
      preceding  month.  Such  bills will  be accompanied by  statements which
      identify the  authority  for expenditure,  lease  or facility,  and  all
      charges  and  credits,  summarized  by  appropriate  classifications  of
      investment and  expense except that  items of Controllable  Material and
      unusual charges  and credits  shall be  separately identified  and fully
      described in detail.

3.    Advances and Payments by Non-Operators

      A. Unless  otherwise provided  for in  the Agreement,  the Operator  may
         require  the Non-Operators to  advance their share  of estimated cash
         outlay  for the  succeeding operation within  thirty (30)  days after
         receipt of the billing or by the first day of the month for which the
         advance is required, whichever is later.   Operator shall adjust each
         monthly billing to reflect advances received from the Non-Operators.
      B. Each Non-Operator shall pay its  proportion of all bills with  thirty
         (30) days  after receipt.  If  payment is not made  within such time,
         the unpaid  balance shall bear interest monthly  at the prime rate in
         effect at Chase Manhattan Bank on the first day of the month in which
         delinquency occurs plus 1% or the maximum  contract rate permitted by
         the  applicable usury  laws of  the jurisdiction  in which  the Joint
         Property is located, whichever  is the lesser, plus attorney's  fees,
         court  costs, and other  costs in  connection with the  collection of 
         unpaid amounts.

4.    Adjustments

      Payment of  any such  bills shall  not prejudice the  right of  any Non-
      Operator  to  protest or  question  the  correctness thereof;  provided,
      however, all bills and statements rendered to Non-Operators by  Operator
      during  any calendar year shall conclusively  be presumed to be true and
      correct  after twenty-four  (24) months  following the  end of  any such
      calendar  year, unless within  the said twenty-four  (24) month period a
      Non-Operator takes written exception thereto and makes claim on Operator
      for adjustment.    No adjustment  favorable to  Operator  shall be  made
      unless it is made within the same prescribed period.   The provisions of
      this paragraph shall  not prevent adjustments resulting  from a physical
      inventory of Controllable Material as provided for in Section V.

      COPYRIGHT 1987 by the Council of Petroleum Accountants Societies.

5.    Audits

      A. A Non-Operator, upon notice in writing to Operator and all other Non-
         Operators,  shall have  the right  to audit  Operator's  accounts and
         records  relating to the  Joint Account for  any calendar year within
         the twenty-four (24) month period following the  end of such calendar
         year; provided, however, the making of an audit shall not  extend the
         time  for the taking of  written exception to  and the adjustments of
         accounts  as provided for  in Paragraph 4  of this Section  1.  Where
         there are two  or more  Non-Operators, the  Non-Operators shall  make
         every reasonable effort  to conduct a joint  audit in a manner  which
         will result in a minimum of inconvenience to the  Operator.  Operator
         shall bear no portion of the Non-Operators' audit cost incurred under
         this paragraph  unless agreed to by  the Operator.   The audits shall
         not  be conducted more than once each  year without prior approval of
         Operator, except upon the resignation or removal of the Operator, and
         shall  be made at  the expense of  those Non-Operators approving such
         audit.
      B. The Operator  shall reply in  writing to an  audit report within  180
         days after receipt of such report.

6.    Approval by Non-Operators

      Where an approval or other agreement of the Parties or Non-Operators  is
      expressly required under other sections of this Accounting Procedure and
      if the agreement to which this Accounting Procedure is attached contains
      no contrary provisions in regard thereto, Operator shall notify all Non-
      Operators of the Operator's proposal, and the agreement or approval of a
      majority  in interest of  the Non-Operators shall  be controlling on all
      Non-Operators.

                              II.  DIRECT CHARGES

Operator shall charge the Joint Account with the following items:

1.    Rentals and Royalties

      Lease rentals and royalties paid by Operator for the Joint Operations.

2.    Labor

      A. (1)   Salaries  and  wages  of  Operator's  field  employees directly
               employed  on  the  Joint  Property  in  the  conduct  of  Joint
               Operations.
         (2)   Salaries and wages of Operator's employees directly employed on
               Shore Base Facilities or  other Offshore Facilities serving the 
               Joint Property if such costs are not  charged under Paragraph 7
               of this Section II.
         (3)   Salaries of First Level Supervisors in the field.
         (4)   Salaries and wages of  Technical Employees directly employed on
               the  Joint  Property if  such  charges  are excluded  from  the
               Overhead rates.
         (5)   Salaries and wages of Technical Employees either temporarily or
               permanently assigned to and  directly employed in the operation
               of  the Joint Property  if such  charges are excluded  from the
               overhead rates.
      B. Operator's  cost  of  holiday,   vacation,  sickness  and  disability
         benefits  and  other customary  allowances  paid  to employees  whose
         salaries  and  wages  are  chargeable  to  the  Joint  Account  under
         Paragraph 2A of this Section II.   Such costs under this Paragraph 2B
         may  be  charged on  a "when  and as  paid  basis" or  by "percentage
         assessment"  on the amount  of salaries  and wages chargeable  to the
         Joint Account under  Paragraph 2A of this Section II.   If percentage
         assessment is used,  the rate shall be  based on the Operator's  cost
         experience.
      C. Expenditures or contributions made pursuant to assessments imposed by
         governmental  authority which  are  applicable  to  Operator's  costs
         chargeable to the Joint  Account under Paragraphs 2A  and 2B of  this
         Section II.
      D. Personal  Expenses of those  employees whose  salaries and  wages are
         chargeable  to the Joint  Account under Paragraph  2A of this Section
         II.

3.    Employee Benefits

      Operator's  current costs of established plans for employees' group life
      insurance, hospitalization, pension, retirement, stock purchase, thrift,
      bonus,  and  other  benefit  plans  of  a  like  nature,  applicable  to
      Operator's labor cost chargeable to  the Joint Account under  Paragraphs
      2A  and 2B of  this Section II  shall be  Operator's actual cost  not to
      exceed the percent most recently recommended by the Council of Petroleum
      Accountants Societies.

4.    Material

      Material  purchased  or  furnished  by Operator  for  use  on  the Joint
      Property as  provided under   Section IV.   Only such Material  shall be
      purchased for or transferred  to the Joint  Property as may be  required
      for  immediate use  and  is  reasonably  practical and  consistent  with
      efficient and economical operations.  The accumulation of surplus stocks
      shall be avoided.

5.    Transportation

      Transportation  of  employees  and  Material  necessary  for  the  Joint
      Operations but subject to the following limitations:

      A. If Material  is  moved to  the  Joint  Property from  the  Operator's
         warehouse or other  properties, no charge shall be  made to the Joint
         Account  for a distance  greater than  the distance from  the nearest
         reliable supply store  where like material  is normally available  or
         railway  receiving point nearest the Joint  Property unless agreed to
         by the Parties.
      B. If surplus Material is moved to Operator's warehouse or other storage
         point, no  charge shall be made  to the Joint Account  for a distance
         greater than the distance to the nearest  reliable supply store where
         like  material  is normally  available,  or  railway receiving  point
         nearest  the  Joint Property  unless agreed  to by  the Parties.   No
         charge shall  be made to  the Joint  Account for  moving Material  to 
         other  properties  belonging to  Operator,  unless agreed  to  by the
         Parties.
      C. In the  application of  subparagraph  A and  B above,  the option  to
         equalize or charge actual trucking cost is  available when the actual
         charge is $400  or less excluding accessorial charges.  The $400 will
         be adjusted to the amount most recently recommended by the Council of
         Petroleum Accountants Societies.

6.    Services

      The  cost of  contract  services, equipment  and  utilities provided  by
      outside sources, except services excluded  by Paragraph 9 of Section  II
      and Paragraph  i and  ii  of Section  III.   The  costs of  professional
      consultant  services   and  contract  services  of  technical  personnel
      directly engaged on the Joint Property if such charges are excluded from
      the  overhead rates.   The cost  of professional consultant  services or
      contract  services  of  technical  personnel  directly  engaged  in  the
      operation of the Joint Property shall be charged to the Joint Account if
      such charges are excluded from the overhead rates.

7.    Equipment and Facilities Furnished by Operator

      A. Operator shall  charge the  Joint Account  for use  of Operator-owned
         equipment  and  facilities,  including  Shore  Base  and/or  Offshore
         Facilities,  at  rates  commensurate  with  costs  of  ownership  and
         operation.  Such rates may include labor, maintenance, repairs, other
         operating  expense,  insurance, taxes,  depreciation and  interest on
         gross investment  less accumulated  depreciation not to  exceed eight
         percent 8.0% per  annum.  In addition,  for platforms only, the  rate
         may  include   an  element   of  the  estimated   cost  of   platform
         dismantlement.  Such  rates shall not exceed average commercial rates
         currently prevailing in the immediate area of the Joint Property.
      B. In lieu of charges in  Paragraph 7A above, Operator may elect  to use
         average commercial  rates prevailing  in  the immediate  area of  the
         Joint Property  less twenty percent (20%).  For automotive equipment,
         Operator  may elect  to use  rates published  by the  Petroleum Motor
         Transport Association. *

   *  If the Operator contracts a drilling  rig from an affiliated company for
      exploration, appraisal or  development drilling, the day rates used will
      be  the  average  commercial  rates  for  a  similar  specification  rig
      prevailing in the immediate area of the Joint Property.

8.    Damages and Losses to Joint Property

      All costs or expenses necessary  for the repair or replacement of  Joint
      Property made necessary because of  damages or losses incurred by  fire,
      flood, storm, theft,  accident, or other causes, except  those resulting
      from Operator's gross  negligence or willful misconduct.  Operator shall
      furnish Non-Operator  written notice  of damages  or losses  incurred as
      soon  as  practicable  after  a  report  thereof  has been  received  by
      Operator.

9.    Legal Expense

      Expense of  handling, investigating  and settling litigation  or claims,
      discharging  of  liens, payments  of  judgements  and  amounts paid  for
      settlement of claims incurred in or resulting  from operations under the
      Agreement or necessary to protect or recover  the Joint Property, except
      that no charge for services of Operator's legal staff or fees or expense
      of outside  attorneys shall be made  unless previously agreed to  by the
      Parties.   All other legal  expense is considered  to be covered  by the
      overhead  provisions of Section  III unless  otherwise agreed to  by the 
      Parties, except as provided in Section I, Paragraph 3.

10.   Taxes

      All  taxes of  every  kind and  nature  assessed or  levied  upon or  in
      connection  with  the  Joint  Property, the  operation  thereof,  or the
      production therefrom, and which taxes have been paid by the Operator for
      the benefit of the Parties.  If the ad  valorem taxes are based in whole
      or  in part upon  separate valuations of  each party's working interest,
      then notwithstanding anything  to the  contrary herein,  charges to  the
      Joint Account shall be made and paid by the Parties hereto in accordance
      with the tax value generated by each party's working interest.

11.   Insurance

      Net premiums  paid for  insurance required to  be carried for  the Joint
      Operations  for the  protection  of the  Parties.   In  the event  Joint
      Operations are conducted at offshore locations in which Operator may act
      as  self-insurer  for Workers'  Compensation  and Employers'  Liability,
      Operator may  include  the  risk  under its  self-insurance  program  in
      providing  coverage under State  and Federal  laws and charge  the Joint
      Account at Operator's cost not to exceed manual rates.

12.   Communications

      Costs  of  acquiring,  leasing,  installing,  operating,  repairing  and
      maintaining   communication  systems   including  radio   and  microwave
      facilities between the Joint  Property and the Operator's  nearest Shore
      Base Facility.   In the  event communication facilities  systems serving
      the  Joint Property  are Operator-owned,  charges  to the  Joint Account
      shall be made as provided in Paragraph 7 of this Section II.

13.   Ecological and Environmental

      Costs  incurred  on  the  Joint  Property  as   a  result  of  statutory
      regulations  for  archaeological  and  geophysical  surveys relative  to
      identification  and  protection  of   cultural  resources  and/or  other
      environmental or ecological  surveys as may be required by the Bureau of
      Land Management or other regulatory  authority.  Also, costs to  provide
      or have available pollution containment and removal equipment plus costs
      of  actual control  and cleanup  and resulting  responsibilities of  oil
      spills as required by applicable laws and regulations.

14.   Abandonment and Reclamation

      Costs incurred for  abandonment of the  Joint Property, including  costs
      required by governmental or other regulatory authority.

15.   Other Expenditures

      Any  other  expenditure  not  covered or  dealt  with  in  the foregoing
      provisions of this  Section II, or in Section III and which is of direct
      benefit to  the Joint Property  and is incurred  by the Operator  in the
      necessary and proper conduct of the Joint Operations.

                                III.  OVERHEAD

As  compensation   for  administrative,   supervision,  office   services  and
warehousing costs, Operator  shall charge the Joint Account in accordance with
the Section III.

Unless otherwise agreed  to by the  Parties, such charge  shall be in  lieu of
costs  and expenses  of  all offices  and  salaries or  wages plus  applicable 
burdens and expenses of all personnel, except  those directly chargeable under
Section  II.   The  cost  and  expense of  services  from  outside sources  in
connection with matters of taxation, traffic, accounting  or matters before or
involving  governmental  agencies shall  be  considered  as  included  in  the
overhead rates provided  for in this Section III unless  such cost and expense
are agreed to by the Parties as a direct charge to the Joint Account.

      i     Except as otherwise provided in  Paragraph 2 of this Section  III,
            the salaries,  wages and Personal Expenses  of Technical Employees
            and/or the  cost of professional consultant  services and contract
            services  of technical  personnel directly  employed on  the Joint
            Property:
            (   ) shall be covered by the overhead rates.
            ( X ) shall not be covered by the overhead rates.
      ii Except  as otherwise provided in Paragraph 2 of this Section III, the
         salaries, wages  and Personal Expenses of  Technical Employees and/or
         costs of  professional consultant  services and contract  services of
         technical personnel  either temporarily  or  permanently  assigned to
         and directly employed in the operation of the Joint Property:
            ( X ) shall be covered by the overhead rates.
            (   ) shall not be covered by the overhead rates.

1.    Overhead - Drilling and Producing Operations

      As compensation for  overhead incurred in  connection with drilling  and
      producing operations, Operator shall charge on either:
         (   ) Fixed Rate Basis, Paragraph 1A, or
         ( X ) Percentage Basis, Paragraph 1B

      A. Overhead - Fixed Rate Basis
         (1)   Operator shall charge  the Joint Account at the following rates
               per well per month:
               Drilling  Well Rate $_________________(Prorated for less than a
               full month)
               Producing Well Rate $_________________
         (2)   Application of  Overhead - Fixed  Rate Basis for  Drilling Well
               Rate shall be as follows:
            (a)   Charges  for drilling  wells  shall begin  on the  date when
                  drilling  or completion  equipment arrives  on location  and
                  terminate on  the date the drilling  or completion equipment
                  moves  off location  or  rig is  released, whichever  occurs
                  first, except that no charge shall be made during suspension
                  of drilling operations for  fifteen (15) or more consecutive
                  calendar days.
            (b)   Charges  for  wells  undergoing  any  type  of  workover  or
                  recompletion for a period of five  (5) consecutive work days
                  or more  shall be  made  at the  drilling well  rate.   Such
                  charges shall be  applied for the period from  date workover
                  operations,  with  rig  or  other units  used  in  workover,
                  commence through date  of rig or other  unit release, except
                  that no charge shall be made during suspension of operations
                  for fifteen (15) or more consecutive calendar days.

         (3)   Application of Overhead  - Fixed Rate Basis  for Producing Well
               Rate shall be as follows:
            (a)   An  active well  either  produced or  injected into  for any
                  portion of  the  month shall  be  considered as  a  one-well
                  charge for the entire month.
            (b)   Each active  completion in  a multi-completed well  in which
                  production is  not commingled down hole  shall be considered
                  as a one-well charge providing each completion is considered
                  a separate well by the governing regulatory authority.
            (c)   An inactive  gas well shut  in because of  overproduction or 
                  failure  of  purchaser  to  take  the  production  shall  be
                  considered as  a one-well charge  providing the gas  well is
                  directly connected to a permanent sales outlet.
            (d)   A one-well  charge  shall be  made for  the  month in  which
                  plugging and  abandonment operations  are  completed on  any
                  well.  This one-well charge shall be made whether or not the
                  well has produced except when drilling well rate applies.
            (e)   All  other  inactive wells  (including  but  not limited  to
                  inactive wells  covered by unit allowable,  lease allowable,
                  transferred  allowable,  etc.)  shall  not  qualify  for  an
                  overhead charge.
         (4)   The well rates shall be  adjusted as of the first day  of April
               each  year following  the effective  date of  the  agreement to
               which this  Accounting Procedure  is attached.   The adjustment
               shall be computed by multiplying  the rate currently in use  by
               the  percentage  increase or  decrease  in  the average  weekly
               earnings of  Crude Petroleum and Gas Production Workers for the
               last calendar year  compared to the calendar  year preceding as
               shown  by  the  index  of  average  weekly  earnings  of  Crude
               Petroleum and Gas Fields Production Workers as published by the
               United States Department of  Labor, Bureau of Labor Statistics,
               or  the equivalent  Canadian index  as published  by Statistics
               Canada, as applicable.  The  adjusted rates shall be the  rates
               currently in use, plus or minus the computed adjustment.
      B. Overhead - Percentage Basis
         (1)   Operator shall charge the Joint Account at the following rates:
            (a)   Development
                  Two and One-Half  Percent (2.5%) of  cost of Development  of
                  the  Joint  Property  exclusive  of  costs   provided  under
                  Paragraph 9 of Section II and all salvage credits.
            (b)   Operating
                  Thirteen Percent  (13%) of the  cost of Operating  the Joint
                  Property exclusive of costs  provided under Paragraphs 1 and
                  9 of Section II, all salvage credits,  the value of injected
                  substances purchased  for secondary  recovery and all  taxes
                  and assessments which are levied, assessed and paid upon the
                  mineral interest in and to the Joint Property.
         (2)   Application of Overhead - Percentage Basis shall be as follows:
               For  the purpose of  determining charges on  a percentage basis
               under  Paragraph  1B of  this  Section  III, development  shall
               include all  costs in connection with  drilling, redrilling, or
               deepening of  any  or all  wells, and  shall  also include  any
               remedial operations requiring a  period of five (5) consecutive
               work days  or  more on  any  or  all wells;  also,  preliminary
               expenditures   necessary  in   preparation  for   drilling  and
               expenditures  incurred  in  abandoning  when the  well  is  not
               completed  as a producer, and original  cost of construction or
               installation of fixed assets, the expansion of fixed assets and
               any other project  clearly discernible as a fixed asset, except
               Major Construction  as defined in  Paragraph 2 of  this Section
               III.  All other costs  shall be considered as Operating  except
               that catastrophe  costs shall be assessed  overhead as provided
               in Section III, Paragraph 3.

2.    Overhead - Major Construction

      To compensate Operator  for overhead costs incurred in  the construction
      and installation of fixed assets, the expansion of fixed assets, and any
      other  project clearly  discernible as  a fixed  asset required  for the
      development and operation of the  Joint Property, or in the  dismantling
      for abandonment of platforms and related production facilities, Operator
      shall either negotiate a rate prior to the beginning of construction, or
      shall charge the Joint Account for Overhead based on the following rates 
      for any Major Construction project in excess of $25,000.
      A. N/A
      B. If the  Operator charges  engineering, design and  drafting costs  as
         defined in the attached Statement of Clarification and Intent related
         to the project directly to the Joint Account:
            (1)       2%    of total costs
      C. If Operator forms an Integrated Project Team and charges its costs as
         defined  in  the  attached  Statement  of  Clarification  and  Intent
         directly to the Joint Account: 
            (1)        2%   of total costs

      Total cost  shall mean  the  gross cost  of any  one project.   For  the
      purpose of this paragraph, the component parts of a single project shall
      not be treated  separately and the  cost of drilling and  workover wells
      and artificial lift equipment shall be excluded.
      On each project, Operator shall advise Non-Operation(s) in advance which
      of the above options shall apply.  In the event  of any conflict between
      the provisions of this paragraph and those  provisions under Section II,
      Paragraph 2  or  Paragraph 6,  the provisions  of  this paragraph  shall
      govern.

3.    Overhead - Catastrophe:

      Catastrophe  Overhead shall be  at the same  applicable rates as Section
      III, Paragraphs  1  and 2  (Drilling and  Producing  Overhead and  Major
      Construction Overhead).

4.    Amendment of Rates

      The Overhead  rates provided for in this Section III may be amended from
      time to time only by mutual agreement between the Parties  hereto if, in
      practice, the rates are found to be insufficient or excessive.

              IV.  PRICING OF JOINT ACCOUNT MATERIAL PURCHASES, 
                          TRANSFERS AND DISPOSITIONS 

Operator is responsible for  Joint Account Material and shall  make proper and
timely  charges and  credits for  all Material  movements affecting  the Joint
Property.   Operator shall provide all Material for use on the Joint Property;
however,  at  Operator's option,  such Material  may be  supplied by  the Non-
Operator.   Operator  shall make  timely disposition  of  idle and/or  surplus
Material,  such disposal being  made either through  sale to Operator  or Non-
Operator, division in kind, or sale to outsiders.  Operator  may purchase, but
shall be under no obligation to purchase, interest of Non-Operators in surplus
condition A  or B Material.  The disposal of surplus Controllable Material not
purchased by the Operator shall be agreed to by the Parties.

1.    Purchases
      Material purchased shall  be charged at the price paid by Operator after
      deduction of  all discounts received.   In case of Material  found to be
      defective or returned to  vendor for any other reasons, credit  shall be
      passed to  the Joint Account  when adjustment has  been received  by the
      Operator.

2.    Transfers and Dispositions
      Material  furnished to the Joint Property  and Material transferred from
      the  Joint Property  or disposed  of by  the Operator,  unless otherwise
      agreed  to  by the  Parties,  shall be  priced  on  the following  bases
      exclusive of cash discounts:
      A. New Material (Condition A)
         (1)   Tubular Goods Other than Line Pipe
            (a)   Tubular goods, sized 2 1/2 inches OD and larger, except line
                  pipe, shall be priced at Eastern mill published carload base 
                  prices effective as of  date of movement plus transportation
                  cost  using the  80,000  pound carload  weight basis  to the
                  railway receiving point nearest the Joint Property for which
                  published rail rates for tubular goods exist.  If the 80,000
                  pound rail is not offered, the 70,000  pound or 90,000 pound
                  rail rate may  be used.  Freight charges for  tubing will be
                  calculated  from Lorain,  Ohio and  casing  from Youngstown,
                  Ohio.
            (b)   For grades which are special to one  mill only, prices shall
                  be   computed   at  the   mill  base   of  that   mill  plus
                  transportation cost from that  mill to the railway receiving
                  point  nearest  the  Joint  Property as  provided  above  in
                  Paragraph 2.A.(1)(a).   For transportation cost from  points
                  other than Eastern mills, the 30,000 pound Oil Field Haulers
                  Association interstate truck rate shall be used.
            (c)   Special end  finish tubular  goods  shall be  priced at  the
                  lowest published out-of-stock  price, f.o.b. Houston, Texas,
                  plus   transportation   cost,   using   Oil   Field  Haulers
                  Association interstate  30,000  pound  truck  rate,  to  the
                  railway receiving point nearest the Joint Property.
            (d)   Macaroni  tubing (size  less that  2 1/2  inch OD)  shall be
                  priced  at the lowest  published out-of-stock  prices f.o.b.
                  the supplier plus transportation  costs, using the Oil Field
                  Haulers  Association interstate  truck  rate per  weight  of
                  tubing transferred,  to the railway receiving  point nearest
                  the Joint Property.
         (2)   Line Pipe
            (a)   Line pipe movements (except size 24 inch  OD and larger with
                  walls  1/4 inch  and over)  30,000 pounds  or more  shall be
                  priced  under   provisions  of  tubular  goods   pricing  in
                  Paragraph A.(1)(a) as provided above.  Freight charges shall
                  be calculated from Lorain, Ohio.
            (b)   Line pipe movements (except size 24 inch  OD and larger with
                  walls  1/4 inch and  over) less than  30,000 pounds shall be
                  priced  at   Eastern  mill  published  carload  base  prices
                  effective  as of  date of  shipment, plus  20 percent,  plus
                  transportation  costs based  on freight  rates as  set forth
                  under  provisions  of  tubular  goods  pricing  in Paragraph
                  A.(1)(a)  as  provided  above.   Freight  charges  shall  be
                  calculated from Lorain, Ohio.
            (c)   Line pipe 24  inch OD and over and 1/4  inch wall and larger
                  shall be priced f.o.b. the  point of manufacture at  current
                  new published prices plus transportation cost to the railway
                  receiving point nearest the Joint Property.
            (d)   Line pipe,  including fabricated  line pipe, drive  pipe and
                  conduit not listed on published price  lists shall be priced
                  at quoted prices plus freight to the railway receiving point
                  nearest  the Joint Property  or at  prices agreed to  by the
                  Parties.
         (3)   Other  Material shall be  priced at  the current new  price, in
               effect  at date  of movement,  as listed  by a  reliable supply
               store nearest the Joint Property, or point of manufacture, plus
               transportation costs,  if applicable, to the  railway receiving
               point nearest the Joint Property.
         (4)   Unused new Material, except tubular goods, moved from the Joint
               Property shall be priced at the current new price, in effect on
               date of movement, as listed by a  reliable supply store nearest
               the   Joint   Property,   or   point   of   manufacture,   plus
               transportation costs,  if applicable, to  the railway receiving
               point nearest the Joint Property.  Unused  new tubulars will be
               priced as provided above in Paragraph 2.A.(1) and (2).
      B. Good Used Material (Condition B)
            Material in sound and serviceable condition and suitable for reuse 
            without reconditioning:
            (1)   Material moved to the Joint Property
                  At  seventy-five  percent (75%)  of  current  new price,  as
                  determined by Paragraph A.
            (2)   Material used on and moved from the Joint Property
               (a)   At seventy-five  percent (75%)  of current new  price, as
                     determined  by Paragraph  A, if  Material  was originally
                     charged to the Joint Account as new Material or
               (b)   At  sixty-five percent  (65%)  of current  new price,  as
                     determined  by Paragraph  A,  if Material  was originally
                     charged to the Joint Account as used Material.
            (3)   Material not used on and moved from the Joint Property
                  At  seventy-five  percent  (75%)  of current  new  price  as
                  determined by Paragraph A.
            The cost  of  reconditioning, if  any, shall  be  absorbed by  the
            transferring property
      C. Other Used Material
            (1)   Condition C
                  Material which is not in sound and serviceable condition and
                  not  suitable  for   its  original   function  until   after
                  reconditioning  shall be  priced at  fifty percent  (50%) of
                  current new price as determined by Paragraph A.  The cost of
                  reconditioning shall  be charged to the  receiving property,
                  provided Condition C value  plus cost of reconditioning does
                  not exceed Condition B value.
            (2)   Condition D
                  Material,  excluding  junk,  no  longer   suitable  for  its
                  original purpose, but usable for some other purpose shall be
                  priced on a basis commensurate  with its use.  Operator  may
                  dispose of  Condition D  Material under  procedures normally
                  used by Operator without prior approval of Non-Operators.

                  (a)   Casing, tubing, or drill pipe used as  line pipe shall
                        be priced  as  Grade A  and B  seamless  line pipe  of
                        comparable size  and weight.   Used casing,  tubing or
                        drill pipe  utilized as line  pipe shall be  priced at
                        used line pipe prices.
                  (b)   Casing, tubing, or drill  pipe used as higher pressure
                        service lines than standard  line pipe, e.g. power oil
                        lines, shall be priced under normal pricing procedures
                        for  casing, tubing,  or  drill pipe.   Upset  tubular
                        goods shall be priced on a non-upset basis.
            (3)   Condition E
                  Junk  shall be  priced at  prevailing prices.   Operator may
                  dispose of  Condition E Material  under procedures  normally
                  utilized  by   Operator  without  prior  approval   of  Non-
                  Operators.
      D. Obsolete Material
            Material which is serviceable and usable for its original function
            but condition and/or value of  such Material is not equivalent  to
            that  which  would  justify  a  price  as  provided above  may  be
            specially  priced as agreed to by  the Parties.  Such price should
            result in the Joint  Account being charged  with the value of  the
            service rendered by such Material.
      E. Pricing Conditions
            (1)   Loading  or unloading  costs  may be  charged  to the  Joint
                  Account at the  rate of thirty-five cents (35)  per hundred
                  weight on  all tubular  goods movements,  in lieu of  actual
                  loading or unloading costs  sustained at the stocking point.
                  The  above rate  shall be  adjusted as  of the first  day of
                  April  each year  following  January  1,  1985 by  the  same
                  percentage  increase  or decrease  used  to  adjust overhead
                  rates in Section III, Paragraph 1.A(4).  Each year, the rate 
                  calculated shall be rounded to the nearest cent and shall be
                  the rate in effect until  the first day of April next  year.
                  Such  rate shall be  published each  year by the  Council of
                  Petroleum Accountants Societies.
            (2)   Material  involving  erection  costs  shall  be  charged  at
                  applicable percentage of  the current knocked-down price  of
                  new Material.

3.    Premium Prices
      Whenever  Material  is not  readily  obtainable at  published  or listed
      prices because of national emergencies, strikes or other  unusual causes
      over which  the Operator  has no  control, the  Operator may  charge the
      Joint  Account for the  required Material at  the Operator's actual cost
      incurred in providing such Material, in making it suitable for  use, and
      in  moving it  to  the Joint  Property;  provided notice  in  writing is
      furnished to Non-Operators of the proposed charge  prior to billing Non-
      Operators for such Material.  Each Non-Operator shall have the right, by
      so  electing and  notifying  Operator within  ten  days after  receiving
      notice from  Operator, to furnish  in kind all or  part of his  share of
      such Material suitable for use and acceptable to Operator.

4.    Warranty of Material Furnished By Operator
      Operator does not warrant the Material  furnished.  In case of defective
      Material,  credit  shall  not  be  passed  to  the Joint  Account  until
      adjustment has been received by Operator from the manufacturers or their
      agents.

                                V. INVENTORIES

The Operator shall maintain detailed records of Controllable Material.

1.    Periodic Inventories, Notice and Representation
      At reasonable intervals, inventories shall  be taken by Operator of  the
      Joint  Account Controllable  Material.  Written  notice of  intention to
      take  inventory shall be  given by  Operator at  least thirty  (30) days
      before  any  inventory  is  to  begin  so   that  Non-Operators  may  be
      represented when any inventory is taken.  Failure of Non-Operators to be
      represented  at an  inventory  shall bind  Non-Operators  to accept  the
      inventory taken by Operator.

2.    Reconciliation and Adjustment of Inventories
      Adjustments to the Joint Account resulting from  the reconciliation of a
      physical inventory shall be made within six  months following the taking
      of the inventory.  Inventory adjustment shall be made by Operator to the
      Joint  Account for overages  and shortages, but,  Operator shall be held
      accountable only for shortages due to lack of reasonable diligence.

3.    Special Inventories
      Special Inventories may be taken whenever  there is any sale, change  of
      interest, or change of Operator in the  Joint Property.  It shall be the
      duty of  the party selling  to notify  all other Parties  as quickly  as
      possible after  the transfer of  interest takes place.   In  such cases,
      both the seller  and the purchaser shall be  governed by such inventory.
      In cases involving a change  of Operator, all Parties shall  be governed
      by such inventory.

4.    Expense of Conducting Inventories
      A. The  expense of conducting periodic  inventories shall not be charged
         to the Joint Account unless agreed to by the Parties.
      B. The expense of conducting special inventories shall be charged to the
         Parties  requesting such inventories, except inventories required due
         to change of Operator shall be charged to the Joint Account. 

                            ADDENDUM TO EXHIBIT "C"

                             ACCOUNTING PROCEDURE
                     STATEMENT OF CLARIFICATION AND INTENT


These accounting procedures supplement Exhibit "C," (Accounting Procedure), of
the  __________________________Joint Operating Agreement (Agreement).

To clarify the provisions of  Paragraph 5 of Section I,  General Provisions---
Audits, Paragraph  2  of Section  H, Direct  Charges---Labor,  Paragraph I  of
Section  M,  Overhead---Drilling  and  Producing Operations,  Paragraph  2  of
Section M,  Overhead-Major  Construction  and Section  IV,  Pricing  of  Joint
Account  Material  Purchases,  Transfers   and  Dispositions,  the   following
statement of  principles has been agreed  upon by the Parties  with respect to
the  chargeability  of  certain   expenditures  incurred  in  connection  with
Integrated Project Team, Major Construction and Drilling activities.

Expenditures for the Integrated Project Team activities, as defined in Article
12  and Exhibit "G'  of the Agreement,  Major Construction and  Drilling shall
include all costs  and related expenses for conceptual  studies/design, detail
design,  construction,  commissioning  and  installation  activities.     This
includes,  but is  not limited  to, cost  associated with  drilling/completion
engineering  and design,  well  planning, regulatory  requirements,  prototype
design/development, studies, materials, engineering, site evaluation, surveys,
soil  borings,   preliminary  design,   detailed   design,  construction   and
fabrication, mating and  hook-up, transportation, commissioning, assembly  and
testing, pipelines and related  activities and any other  expenditure incurred
by the Operator for the necessary and proper conduct of the Integrated Project
Team, Major Construction or Drilling activities.

Accounting for any of these activities shall be in accordance with appropriate
sections of this  Exhibit "C"  which specify those  costs that are  chargeable
direct  and those to be recovered via  the overhead rates.   Each construction
AFE  will  specify  which   section  shall  apply,  provided,  however,   that
establishment of an Integrated Project Team chargeable under the provisions of
Section III, Paragraph 2.C shall require approval of the Parties in accordance
with Article 12 and Exhibit "G' of the Agreement.

SECTION I, PARAGRAPH 5.B:

A contract  representative  from each  participant will  be  appointed to  the
contract committee  to identify, recommend and/or  implement changes necessary
to  align contract provisions with current practice  as agreed by all parties.
Changes which require amendment of the Joint Operating Agreement shall require
the unanimous approval of the Parties.

The  roles and  responsibilities of  the contract  committee will  include the
review of COPAS  updates for agreement  applicability, resolution of  Operator
billing practices  and  other matters  which will  improve  the agreement  and
relationships among the parties.   The appointed representatives will meet  on
an annual basis on a cycle coincident with the JOA execution date.

Audit exceptions,  unresolved one year from the date of the audit report, will
be  reviewed  by  the contract  committee  for  resolution.   If  the contract
committee is unable to resolve the issue within one hundred eighty (180) days,
the issue will be handled in accordance with the dispute resolution procedures
described in Exhibit 'I" (Dispute Resolution Procedure).

SECTION II PARAGRAPH 2:

Upon request, the Operator  will submit applicable organizational charts  with
the Annual Operating Plan identifying positions to be directly  charged to the 
Joint Account in accordance ,with Paragraph 2.A of Section H.

SECTION III PARAGRAPH 2.B:

In order to clarify "engineering, design and  drafting costs" chargeable under
Section M, Paragraph 2.B of this Exhibit "C," the following shall apply:

a.    SERVICES RENDERED BY OPERATOR'S EMPLOYEES
      All salaries, wages,  payroll burden and Personal  Expenses of personnel
      performing  technical services for  the benefit of  the Joint Account in
      connection  with the design, construction and  installation of the Major
      Construction  project shall  be charged  direct regardless  of location.
      Such  personnel   shall  be   comprised  of  Operator's   Producing  and
      Exploration Department employees including engineers, environmentalists,
      technologists,    engineering   assistants,    technicians,   draftsmen,
      construction  representatives and  other personnel  performing technical
      services.
      Salaries  will  be charged  to the  Joint Account  based on  actual days
      worked only  when such time  totals at least one  day or more  per month
      that  is devoted to  the Major  Construction project Payroll  burden and
      Personal  Expenses associated  with this  labor will  be charged  to the
      Joint Account consistent with the provisions of  Section H, Paragraph 2,
      Direct Charges-Labor and Paragraph 3, Direct Charges-Employee Benefits.

      Personal  Expenses  include  travel,  accommodation,  per  diem,  meals,
      entertainment  and  other  reasonable  reimbursable  costs  incurred  by
      personnel  in  accordance with  Operator  standards  whose salaries  are
      chargeable  to the Joint  Account.   Relocation costs may  be chargeable
      only if the  transfer is primarily for the benefit  of the Joint Account
      and the employee is assigned to the project for a minimum of twelve (12)
      months.

b.    AFFILIATE AND DRAFTING SERVICES

      All  salaries, wages,  payroll  burden, Personal  Expenses and  indirect
      costs  of Operator's  Affiliates (which,  for SOI,  shall include  their
      Civil Engineering and Drafting  groups) which provide requested services
      for the design, construction and installation of the  Major Construction
      project shall be charged direct.

      The  cost of  drafting  services, including  computer assisted  drafting
      (CAD),  necessary for the  design, construction and  installation of the
      Major Construction project shall be direct charged.
      Operator/Non-Operators' Affiliate  and computer services may  be charged
      on the basis of an all- inclusive  standard hourly/daily rate (including
      overhead)  or cost allocation  basis as is customarily  charged to or by
      its Affiliates for personnel and/or services.

      Affiliates shall maintain  auditable records to support all charges made
      by it to the Joint  Account and as to  such charges shall be subject  to
      the same audit requirements provided  for Operator's charges in  Section
      1, Paragraph  5 of this  Exhibit "C." If an  all-inclusive standard unit
      rate is used, such audit  requirements shall be limited to  verification
      that  such rate  is, in  fact, the  rate(s)  customarily charged  by its
      Affiliates.

c.    THIRD-PARTY COSTS

      All third-party expenditures incurred by the Operator for the direct and
      primary benefit  of  the design,  construction and  installation of  the
      Major Construction project regardless of location will be direct charged
      to the Joint Account.   Third-party expenditures shall include, but  not
      be limited to: 
- -     Contractors, consultants and service companies
- -     Fabrication,  construction and  installation  activities and  associated
      cost
- -     Specialized equipment,  materials, testing or other  services (including
      software and specialized computer applications)
- -     Research and development, prototype studies, design and development work
      Conceptual work/studies
- -     On-site construction representatives and inspectors and associated cost

d.     OVERHEAD APPLICATION

The Major Construction  rates provided in Exhibit "C," Section  III, 2.B shall
provide for all personnel not  chargeable direct and all other  Administrative
functions and  associated cost indirectly  serving the project  including, but
not   limited  to,   cost  for   Accounting,  services   personnel,  treasury,
Administrative, senior  management and other support services  provided by the
Operator.  Such rates shall be applied to the total cost (gross) of such fixed
asset charged to the  Joint Account.   Total cost shall  include all cost  and
related expenses as defined in this Addendum to Section III.2.B.

SECTION III PARAGRAPH 2.C:

Prior to  activating an  Integrated Project  Team pursuant  to Article  12 and
Exhibit "G'  of the Agreement, the following provisions shall apply in lieu of
Exhibit "C," Sections III.2.B. or III.2.C. In the event an  Integrated Project
Team  includes personnel involved  in drill well  design and development (i.e.
well completions, production/wellhead equipment, etc.) direct chargeable costs
associated with such well design and development  prior to actual commencement
of drilling of Development Wells shall be defined by this Section.

a.    SERVICES RENDERED BY EMPLOYEES OF PARTICIPANTS

All salaries,  wages,  payroll burden  and  Personal Expenses  of  management,
supervisory,  technical and other  personnel who are  directly assigned to the
Integrated   Project  Team   and  engaged   in  project   management,  design,
construction and installation shall be  charged direct regardless of location.
Such  personnel  may  include,  but  are  not  limited to,  project  managers,
superintendents, technical managers, engineers, inspectors, environmentalists,
technologists,  engineering  assistants,  technicians,  draftsmen, engineering
clerks, secretaries, construction representatives, purchasing representatives,
material expediters,  financial support and other  technical, professional and
support personnel performing services for the Integrated Project Team.  A  pro
rata share of salaries, wages,  payroll burden and Personal Expenses  of part-
time technical  personnel  may be  charged  direct  if the  individual's  time
devoted to the project totals at least one full day during a given month.

Costs  incurred  by Non-Operators  for salaries,  payroll burden  and Personal
Expenses  of  personnel  directly  assigned  to  the  Integrated Project  Team
authorized by  the  Project Manager  to  provide  services to  the  Integrated
Project Team will be  billed to the Operator on or before  the 20th day of the
following month.   Operator will remit payment to the  Non-Operators for these
costs and charge the total amount to the Joint Account.

A pro  rata share of salaries  will be charged  to the Joint Account  based on
actual days worked  only when such  time totals at least  one day or  more per
month that  is devoted to the  project.  Payroll burden  and Personal Expenses
associated with  this labor will  be charged  to the Joint  Account consistent
with the  provisions  of Section  II, Paragraph  2,  Direct Charges-Labor  and
Paragraph 3, Direct Charges-Employee Benefits.

Personal   Expenses   include   travel,  accommodation,   per   diem,   meals,
entertainment and other reasonable reimbursable costs incurred by personnel in
accordance with Operator standards whose salaries are  chargeable to the Joint
Account.  Relocation costs may be chargeable only if the transfer is primarily
for the benefit  of the  Joint Account  and the  employee is  assigned to  the
Integrated Project Team for a minimum of twelve (12) months.

Each participant shall maintain auditable records to  support any charges made
by it  to the Joint  Account and  shall be subject  to the  audit requirements
provided in  Section 1, Paragraph  5 of this Exhibit  "C" as to  such charges.
Auditable  records shall include  time sheets and  expense account reports for
personnel charged  to  the Joint  Account, basis  for  calculation of  payroll
burden, third-party  invoices, organization  charts or personnel  listings for
the Integrated Project Team, etc.

b.    AFFILIATE AND DRAFTING SERVICES

All salaries, wages, payroll burden,  Personal Expenses and indirect costs  of
Operator's Affiliates (which, for SOI,  shall include their Civil  Engineering
and Drafting groups) which provide requested  services for the benefit of  the
Project  Team  shall be  direct  charged.    The  cost of  drafting  services,
including computer assisted drafting (CAD), utilized by the Project Team shall
be  direct charged.   Costs  incurred by  Non-Operators for  salaries, payroll
burden  and  Personal  Expenses  of personnel  not  directly  assigned  to the
Integrated Project  Team may be  charged to  the Joint Account  only with  the
approval of the Project Manager.

Affiliate  and  computer services  may  be  charged on  the  basis  of an  all
inclusive standard  hourly/daily rate (including overhead)  or cost allocation
basis  as the Operator  customarily charges its  Affiliates (or the Operator's
Affiliate customarily charges the participant) for personnel and/or services.

Affiliates shall maintain auditable records to support  all charges made by it
to the Joint Account and as to such charges shall be subject to the same audit
requirements provided for Operator's charges in Section I, Paragraph 5 of this
Exhibit  "C.' If  an all  inclusive  standard unit  rate is  used, such  audit
requirements shall  be limited to verification that such rate is, in fact, the
rate(s) customarily charged by its Affiliates.

c.    THIRD PARTY COSTS

All third-party expenditures incurred by  the Operator for the direct  benefit
of the  project regardless of  location will  be direct charged  to the  Joint
Account.  Third-party expenditures shall include, but not be limited to:
- -     Contractors, consultants and service companies
- -     Fabrication, construction  and  installation activities  and  associated
      cost
- -     Specialized equipment,  materials, testing or other  services (including
      software and specialized computer applications)
- -     Research and development prototype studies, design and development work
- -     Conceptual work/studies
- -     On-site construction representatives and inspectors and associated cost
- -     Drilling design and development

d.    OVERHEAD APPLICATION

The Major Construction  rates provided in Exhibit "C,"  Section III, 2.C shall
provide for  all personnel  above  the Project  Manager  level and  all  other
Administrative functions  and associated  cost indirectly serving  the project
including, but  not  limited  to,  cost for  Accounting,  services  personnel,
treasury,  Administrative,  senior  management  and  other   support  services
provided by  the Operator.   Such  rates shall  be applied  to the  total cost
(gross) of such  fixed asset charged to the  Joint Account.  Total  cost shall
include all cost and related  expenses as defined in this Addendum  to Section
III.2.C.

If the  Project Manager elects  to house  the Integrated Project  Team at  the 
office  of a Non-Operating  Party, the Project  Manager and Non-Operator shall
agree  upon a  rental rate  to charge for  providing a  work location  for the
Project Team.   The actual rent will  be invoiced by  the Non-Operator to  the
Operator.   The  Operator shall  not be  entitled to  charge overhead  on Non-
Operator's  office rental  charges to  the  Joint Account  as  stated in  this
Statement of Clarification and Intent Section III, Paragraph 2.C(d).

SECTION  IV, PRICING  OF  JOINT  ACCOUNT  MATERIAL  PURCHASES,  TRANSFERS  AND
DISPOSITIONS:

The pricing  of material transfers to  and/or from the joint  property will be
determined by  utitilizing the  Computerized Equipment Pricing  System (CEPS),
historical price multiplier, pricing on application or fair market value.  The
Pricing method selected  by the Operator  will be applied consistently  to all
material transfer transactions.

A Direct Purchase is determined to occur when an agreement  is made between an
Operator  and a third  party for the  acquisition of materials  for a specific
well  site  or location.    Direct Purchases  shall  be charged  to  the Joint
Property at  the price paid by  the Operator after deduction  of all discounts
received.  Material provided by the Operator under "vendor stocking programs,"
where the initial use is for  a joint property and title of the  material does
not pass from  the vendor until  usage, is considered  a direct purchase.   If
material is found to be defective or  is returned to the vendor for any  other
reason, credit shall  be passed to  the Joint Property  when adjustments  have
been received by the Operator from the manufacturer, distributor or agent.

"Tubular substitutions"  is defined  where higher-than-specification grade  or
size  tubulars are charged  to the  Joint Property from  Operator's inventory.
The Operator is entitled to  charge the Joint Property at an  equivalent price
of the well design specification tubulars.

                                  EXHIBIT "D"

         Attached to and made a part of the Joint Operating Agreement
dated effective              , by and between Shell Deepwater Development Inc.
and Reading & Bates Development Co.

                     GAS BALANCING AGREEMENT ("AGREEMENT")

1.    DEFINITIONS.   The following definitions shall apply to this Agreement:

      1.01  "Arms Length Agreement" shall mean any gas sales agreement with an
      unaffiliated  purchaser or  any gas  sales agreement with  an affiliated
      purchaser where the sales price represents market value in the Balancing
      Area.

      1.02  "Balancing Area" shall mean all of the  acreage and depths subject
      to the Operating Agreement.

      1.03  "Full  Share  of Current  Production"  shall  mean the  Percentage
      Interest  of each Party in the  Gas actually produced from the Balancing
      Area during each month.

      1.04  "Gas" shall mean all hydrocarbons produced  or producible from the
      Balancing Area,  whether from a  well classified as  an oil well  or gas
      well by the regulatory agency having jurisdiction in such matters, which
      are or may  be made available  for sale or  separate disposition by  the
      Parties, excluding oil, condensate and  other liquids recovered by field
      equipment operated for  the joint account.   "Gas" does not  include gas
      used in joint operations, such as for fuel, recycling or reinjection, or
      which is vented or lost prior to its sale or delivery from the Balancing
      Area. 

      1.05  "Makeup  Gas" shall mean  any Gas taken  by an Underproduced Party
      from  the  Balancing  Area  in  excess  of  its Full  Share  of  Current
      Production, whether pursuant to Section 3.3 or Section 4.1 hereof.

      1.06  "Mcf" shall  mean one thousand  cubic feet.   A cubic foot  of Gas
      shall mean  the volume of  gas contained in one  cubic foot of  space at
      sixty degrees  Fahrenheit, 14.73 pounds per square  inch absolute (PSIA)
      and having a specific gravity of 1.00.

      1.07  "MMBtu" shall mean one million  British Thermal Units.  A  British
      Thermal Unit shall mean the quantity of heat required to raise one pound
      avoirdupois of pure water from  58.5 degrees Fahrenheit to 59.5  degrees
      Fahrenheit at  a  constant pressure  of  14.73  pounds per  square  inch
      absolute.

      1.08  "Operator" shall  mean the  individual or entity  designated under
      the terms of the Operating Agreement  or, in the event this Agreement is
      not employed in  connection with an operating  agreement, the individual
      or  entity designated  as  the operator  of the  well(s) located  in the
      Balancing Area.

      1.09  "Overproduced  Party" shall mean any  Party having taken a greater
      quantity of Gas from the Balancing  Area than the Percentage Interest of
      such Party  in  the cumulative  quantity of  all Gas  produced from  the
      Balancing Area.

      1.10  "Overproduction" shall  mean the cumulative quantity  of Gas taken
      by  a Party  in  excess of  its Percentage  Interest  in the  cumulative
      quantity of Gas produced from the Balancing Area.

      1.11  "Party"  shall mean those individuals  or entities subject to this
      Agreement,  and  their  respective heirs,  successors,  transferees  and
      assigns.

      1.12  "Percentage  Interest"   shall  mean  the  percentage  or  decimal
      interest of  each Party  in  the Gas  produced from  the Balancing  Area
      pursuant to the Operating Agreement covering the Balancing Area.

      1.13  "Royalty"  shall  mean payments  on  production  of  Gas from  the
      balancing  Area  to  all  owners  of  royalties,  overriding  royalties,
      production payments or similar interests.

      1.14  "Underproduced Party"  shall mean any Party having  taken a lesser
      quantity of Gas from  the Balancing Area than the Percentage Interest of
      such  Party in  the cumulative  quantity of  all Gas  produced from  the
      Balancing Area.

      1.15  "Underproduction" shall mean the deficiency between the cumulative
      quantity  of Gas  taken by a  Party and  its Percentage  Interest in the
      cumulative quantity of all Gas produced from the Balancing Area.

      1.16  "Winter  Period"  shall  mean  the months  October,  November  and
      December  in one calendar  year and the  month of January,  February and
      March in the succeeding calendar year.

2.    BALANCING AREA

      2.1   If this Agreement covers more than one Balancing Area, it shall be
      applied as if each Balancing Area were covered by separate but identical
      agreements.   All balancing hereunder shall be on the basis of Gas taken
      from the Balancing Area measured in MMBtus.

      2.2   In  the  event that  all or  part of  the  Gas deliverable  from a
      Balancing  Area is  or becomes  subject to  one or  more maximum  lawful
      prices,  any Gas not  subject to price  controls shall  be considered as
      produced from a  single Balancing Area  and Gas subject to  each maximum
      lawful  price  category shall  be  considered produced  from  a separate
      Balancing Area.

3.    RIGHT OF PARTIES TO TAKE GAS

      3.1   Each Party desiring to  take Gas will  notify the Operator of  the
      volumes  nominated,  the  name  of  the transporting  pipeline  and  the
      pipeline contract  number (if available)  and meter station  relating to
      such delivery,  sufficiently in  advance for the  Operator, acting  with
      reasonable  diligence, to  meet all  nomination and  other requirements.
      Operator is authorized to deliver the volumes so nominated and confirmed
      (if confirmation is required) to the transporting pipeline in accordance
      with the terms of this Agreement.

      3.2   Each Party shall make a reasonable, good  faith effort to take its
      Full Share  of Current Production  each month  to the  extent that  such
      production  is required  to maintain  leases in  effect, to  protect the
      producing capacity  of  a well  or  reservoir, to  preserve  correlative
      rights, or to maintain oil production.

      3.3   When  a  Party fails  for any  reason to  take  its Full  Share of
      Current Production (as  such Share may  be reduced by  the right of  the
      other  Parties to make  up for Underproduction  as provided herein), the
      other Parties shall be entitled  to take any Gas which such  Party fails
      to take.   To the extent  practicable, such Gas shall  be made available
      initially  to  each  Underproduced  Party  in  the  proportion that  its
      Percentage Interest in the Balancing Area bears  to the total Percentage
      Interest of all Underproduced Parties desiring to take such Gas.  If all
      such Gas  is not  taken by  the Underproduced Parties,  the portion  not
      taken  shall  then  be made  available  to  the  other  Parties  in  the
      proportion that  their respective  Percentage Interest in  the Balancing
      Area bears to the total Percentage Interest of such Parties.

      3.4   All Gas taken by a Party in accordance with the provisions of this
      Agreement,  regardless  of  whether   such  Party  is  underproduced  or
      overproduced, shall  be regarded as Gas  taken for its own  account with
      title thereto being in such taking Party.

      3.5   Notwithstanding  the   provisions  of   Section  3.3  hereof,   no
      Overproduced Party shall  be entitled in  any month to  take any Gas  in
      excess of three hundred percent (300%) of its Percentage Interest of the
      Balancing Area's  then current Maximum  Monthly Availability;  provided,
      however,  that this limitation  shall not  apply to  the extent  that it
      would preclude production that is required to maintain leases in effect,
      to  protect the producing capacity  of a well  or reservoir, to preserve
      correlative  rights, or  to  maintain oil  production. "Maximum  Monthly
      Availability" shall mean the maximum  average monthly rate of production
      at which  Gas can be delivered from the Balancing Area, as determined by
      the Operator, considering the maximum efficient well  rate for each well
      within  the   Balancing  Area,  the  maximum  allowable(s)  set  by  the
      appropriate  regulatory agency,  mode of operation,  production facility
      capabilities and pipeline pressures.

      3.6   In the event that a  Party fails to make arrangements to  take its
      Full  Share of Current  Production required  to be produced  to maintain
      leases in  effect,  to  protect the  producing  capacity of  a  well  or
      reservoir,  to   preserve  correlative   rights,  or  to   maintain  oil
      production, the Operator may sell any part of such Party's full share of
      Current Production that such Party fails to take for the account of such
      Party and render to such Party, on a current basis, the full proceeds of
      the sale less any reasonable marketing, compression, treating, gathering
      or transportation costs incurred directly in connection with the sale of
      such Full Share of Current Production.  In making the  sale contemplated
      herein,  the Operator shall be  obligated only to  obtain such price and
      conditions  for the sale  as are reasonable  under the circumstances and
      shall  not be obligated to share  any of its markets.   Any such sale by
      Operator under  the  terms hereof  shall  be  only for  such  reasonable
      periods of time as are consistent with the minimum needs of the industry
      under the  particular circumstances,  but in no  event for  a period  in
      excess of  one  year.   Notwithstanding the  provisions  of Article  3.4
      hereof, Gas sold  by Operator  for a Party  under the provisions  hereof
      shall be deemed to be Gas taken for the account of such Party.

4.    IN-KIND BALANCING

      4.1   Effective the first day of  any calendar month following at  least
      thirty   (30)  days'   prior  written   notice  to  the   Operator,  any
      Underproduced Party may begin  taking, in addition to its Full  Share of
      Current  Production and any Makeup Gas  taken pursuant to Section 3.3 of
      this Agreement, a share of current production determined  by multiplying
      fifty percent  (50%) of  the Full  Shares of Current  Production of  all
      Overproduced Parties  by  a fraction,  the  numerator  of which  is  the
      Percentage Interest of  such Underproduced Party and  the denominator of
      which  is the  total of  the Percentage  Interests of  all Underproduced
      Parties  desiring to take Makeup Gas.   In no event will an Overproduced
      Party be required  to provide more than fifty percent  (50%) of its Full
      Share of Current  Production for Makeup Gas.  The Operator will promptly
      notify  all  Overproduced Parties  of the  election of  an Underproduced
      Party to begin taking Makeup Gas.

      4.2   Notwithstanding  the provisions  of  Section 4.1,  no Overproduced
      Party will be required to provide more than twenty-five percent (25%) of
      its Full Share of  Current Production for Makeup  Gas during the  Winter
      Period.

      4.3   Notwithstanding  any other  provision of  this Agreement,  at such
      time and for so long as Operator, or (insofar as  concerns production by
      the Operator) any Underproduced Party, determines in  good faith that an
      Overproduced Party  has  produced all  of its  share  of the  ultimately
      recoverable reserves in  the Balancing Area, such Overproduced Party may
      be required  to make available  for Makeup Gas,  upon the demand  of the
      Operator or any Underproduced Party, up to one hundred percent (100%) of
      such Overproduced Party's Full Share of Current Production.

5.    STATEMENT OF GAS BALANCES

      5.1   The Operator will maintain appropriate accounting on a monthly and
      cumulative basis  of the volumes of  Gas that each Party  is entitled to
      receive and the  volumes of Gas actually taken or  sold for each Party's
      account.  Within forty-five (45) days after the month of production, the
      Operator will  furnish  a statement  for  such  month showing  (1)  each
      Party's Full Share of  Current Production, (2)  the total volume of  Gas
      actually  taken or  sold for  each Party's  account, (3)  the difference
      between the volume taken by each and that Party's Full  Share of Current
      Production, (4) the Overproduction or Underproduction of each Party, and
      (5) other  data  as recommended  by  the provisions  of the  Council  of
      Petroleum  Accountants   Societies  Bulletin  No.  24,   as  amended  or
      supplemented hereafter.  Each Party taking Gas  will promptly provide to
      the Operator any  data required by the  Operator for preparation  of the
      statements required hereunder.

      5.2   If any  Party fails to  provide the data required  herein for four
      (4) consecutive production months,  the Operator, or where  the Operator
      has failed to provide data, another Party, may  audit the production and
      Gas sales  and  transportation volumes  of  the non-reporting  Party  to
      provide the  required data.   Such audit shall  be conducted only  after
      reasonable notice and  during normal business hours in the office of the
      Party whose records  are being audited.  All costs  associated with such
      audit will be charged to the account of the Party failing to provide the
      required data.

6.    PAYMENTS ON PRODUCTION

      6.1   Each Party taking Gas shall pay or cause to be paid all production
      and severance taxes  due on all  volumes of Gas  actually taken by  such
      Party.

      6.2   Each Party shall pay or cause to be paid Royalty  due with respect
      to Royalty owners to whom it is  accountable based on the volume of  Gas
      actually taken for its account.

      6.3   In the event that any governmental authority requires that Royalty
      payments  be made  on any  other basis  than that  provided for  in this
      Section 6, each Party agrees to make  such Royalty payments accordingly,
      commencing  on   the  effective  date  required   by  such  governmental
      authority,  and  the  method  provided  for  herein   shall  be  thereby
      superseded.

7.    CASH SETTLEMENTS

      7.1   Upon the  earlier  of the  plugging and  abandonment  of the  last
      producing interval  in  the  Balancing  Area,  the  termination  of  the
      Operating Agreement  or  any  pooling or  unit  agreement  covering  the
      Balancing Area, or at  any time no Gas is taken  from the Balancing Area
      for  a period  of twelve  (12) consecutive  months, any  Party  may give
      written  notice  calling  for  cash  settlement  of  the  Gas production
      imbalances among the Parties.  Such notice shall be given to all Parties
      in the Balancing Area.

      7.2   Within  sixty  (60)  days  after  the  notice  calling   for  cash
      settlement under Section 7.1, the Operator will distribute to each Party
      a   Final   Gas  Settlement   Statement   detailing   the  quantity   of
      Overproduction  owed by  each Overproduced  Party to  each Underproduced
      Party  and  identifying  the  month  to  which  such  Overproduction  is
      attributed, pursuant to the methodology set out in Section 7.4.

      7.3   Within sixty (60) days after  receipt of the Final Gas  Settlement
      Statement, each Overproduced Party will pay  to each Underproduced Party
      entitled to  settlement the appropriate cash  settlement, accompanied by
      appropriate accounting detail.  At the time of payment, the Overproduced
      Party will  notify the  Operator of  the Gas  imbalance  settled by  the
      Overproduced Party's payment.

      7.4   The amount  of the cash  settlement will be based  on the proceeds
      received by the Overproduced Party  under an Arm's Length Agreement  for
      the Gas taken  from time to time by the Overproduced  Party in excess of
      the  Overproduced Party's Share  of Current Production.   Any Makeup Gas
      taken by the Underproduced Party prior to monetary  settlement hereunder
      will be applied to offset Overproduction chronologically in the order of
      accrual.

      7.5   The values used for calculating the cash  settlement under Section
      7.1 will  be based on the proceeds  received for the sale  of the Gas by
      the Overproduced Party calculated at the Balancing  Area, under an Arm's
      Length Agreement, after deducting any production or severance taxes paid 
      and  any  Royalty  actually  paid  by  the   Overproduced  Party  to  an
      Underproduced  Party's  Royalty owner(s),  to  the  extent said  payment
      amounted  to   a  discharge   of  said  Underproduced   Party's  Royalty
      obligation, as well as  any reasonable marketing, compression, treating,
      gathering or  transportation costs incurred directly  in connection with
      the sale of the Overproduction.

      7.6   To the extent the  Overproduced Party did not sell  Overproduction
      under an Arm's Length  Agreement, the cash  settlement will be based  on
      the  weighted average price  received by the  Overproduced Party for any
      gas  sold from the  Balancing Area under  Arm's Length Agreements during
      the months  to which such  Overproduction is  attributed.  In  the event
      that  no sales under  Arm's Length Agreements were  made during any such
      month, the  cash settlement  for such  month will be  based on  the spot
      sales  price published for  the applicable  geographic area  during such
      month in a mutually acceptable pricing bulletin.

      7.7   Interest  compounded at the  rate specified in  Exhibit "C" of the
      Operating Agreement to which this Gas Balancing Agreement is attached or
      the  maximum lawful rate  of interest applicable  to the Balancing Area,
      whichever is  less, will accrue for  all amounts due  under Section 7.1,
      beginning the  rst day  following the  date payment  is due pursuant  to
      Section  7.3. Such  interest  shall  be borne  by  the  Operator or  any
      Overproduced Party in the proportion that their respective delays beyond
      the deadlines set out in Sections 7.2 and 7.3 contributed to the accrual
      of the interest.

      7.8   In  lieu  of  the  cash settlement  required  by  Section  7.3, an
      Overproduced  Party may deliver  to the Underproduced  Party an offer to
      settle  its Overproduction in-kind  and at such  rates, quantities, time
      and sources  as may be agreed  upon by the Underproduced Party.   If the
      Parties are  unable to  agree  upon the  manner  in which  such  in-kind
      settlement gas  will  be furnished  within  sixty  (60) days  after  the
      Overproduced  Party's offer  to  settle  in-kind,  which period  may  be
      extended by agreement of said Parties, the Overproduced Party shall make
      a cash settlement as provided  in Section 7.3. The making of  an in-kind
      settlement offer  under  this Section  will  not  delay the  accrual  of
      interest  on  the  cash  settlement should  the  Parties  fail  to reach
      agreement on an in-kind settlement.

      7.9   At  any time during  the term of  this Agreement, any Overproduced
      Party  may, in  its sole  discretion, make  cash settlement(s)  with the
      Underproduced  Parties covering  all  or  part  of its  outstanding  Gas
      imbalance,  provided  that  such  settlements  must  be  made  with  all
      Underproduced Parties  proportionately based on  the relative imbalances
      of the Underproduced Parties, and provided further that such settlements
      may  not be  made more often  than once  every twenty-four  (24) months.
      Such  settlements will be  calculated in the  same manner provided above
      for  final  cash settlements.    The  Overproduced  Party  will  provide
      Operator a detailed accounting of any such cash settlement within thirty
      (30) days after the settlement is made.

8.    TESTING

      8.1   NOT APPLICABLE

9.    OPERATING COSTS

      Nothing in this Agreement shall change or  affect any Party's obligation
      to pay its  proportionate share of all costs and liabilities incurred in
      operations on  or in connection  with the  Balancing Area, as  its share
      thereof is set forth in the Operating Agreement, irrespective of whether
      any Party is at any  time selling and using Gas or whether such sales or
      use are in proportion to its Percentage Interest in the Balancing Area.

10.   LIQUIDS

      The  Parties  shall   share  proportionately  in  and   own  all  liquid
      hydrocarbons recovered  with  Gas by  field equipment  operated for  the
      joint  account  in accordance  with  their Percentage  Interests  in the
      Balancing Area.

11.   AUDIT RIGHTS

      Notwithstanding any provision  in this Agreement or any  other agreement
      between the Parties hereto,  and further notwithstanding any termination
      or cancellation  of this Agreement, for  a period of two  (2) years from
      the end  of the calendar year  in which any information  to be furnished
      under Section 5 or 7  hereof is supplied, any Party shall have the right
      to  audit the records  of any other  Party regarding quantity, including
      but not limited to information regarding Btu-content.  Any Underproduced
      Party shall have the right for a period of two (2) years from the end of
      the calendar year  in which any cash settlement  is received pursuant to
      Section  7 to  audit the  records of  any Overproduced  Party as  to all
      matters  concerning values,  including  but not  limited to  information
      regarding prices  and disposition of Gas  from the Balancing Area.   Any
      such  audit shall be  conducted at the  expense of the  Party or Parties
      desiring such audit,  and shall be  conducted, after reasonable  notice,
      during  normal business hours in  the office of  the Party whose records
      are being audited.  Each  Party hereto agrees to maintain records  as to
      the volumes  and prices of  Gas sold each  month and the  volumes of Gas
      used in its own operations,  along with the Royalty paid on any such Gas
      used by a Party in its own operations.  The audit rights provided for in
      this Section  11 shall be in  addition to those provided  for in Section
      5.2 of this Agreement.

12.   MISCELLANEOUS

      12.1  As between  the Parties, in the event  of any conflict between the
      provisions  of  this  Agreement  and the  provisions  of  any  gas sales
      contract, or in the event of any conflict between the provisions of this
      Agreement  and the provisions of the Operating Agreement, the provisions
      of this Agreement shall govern.

      12.2  Each Party agrees to defend, indemnify and hold harmless all other
      Parties from and against any and all liability for any claims, which may
      be  asserted by  any third  party  which now  or hereafter  stands in  a
      contractual relationship  with such  indemnifying Party and  which arise
      out of  the  operation of  this  Agreement  or any  activities  of  such
      indemnifying  Party under  the  provisions of  this Agreement,  and does
      further agree to save  the other Parties harmless from  all judgments or
      damages sustained and costs incurred in connection therewith.

      12.3  Except  as  otherwise  provided  in this  Agreement,  Operator  is
      authorized  to administer  the provisions of  this Agreement,  but shall
      have no liability to the other Parties for losses sustained or liability
      incurred  which arise  out of or  in connection with  the performance of
      Operator's duties hereunder, except  such as may result  from Operator's
      gross negligence or willful misconduct.  Operator shall not be liable to
      any Underproduced Party for the failure of any Overproduced Party (other
      than Operator) to pay any amounts owed pursuant to the terms hereof.

      12.4  This Agreement shall remain in full  force and effect for as  long
      as the  Operating Agreement shall remain  in force and effect  as to the
      Balancing  Area,  and  thereafter until  the  Gas  accounts  between the
      Parties are settled  in full, and shall  inure to the benefit  of and be
      binding upon the Parties hereto, and their respective heirs, successors,
      legal representatives and assigns, if any.  The  Parties hereto agree to
      give notice  of the  existence  of this  Agreement to  any successor  in
      interest of any such Party and to provide that any  such successor shall
      be bound by  this Agreement, and shall further make  any transfer of any
      interest subject to the Operating  Agreement, or any part thereof,  also
      subject to the terms of this Agreement.

      12.5  Unless the context clearly indicates  otherwise, words used in the
      singular include the plural, the  plural includes the singular, and  the
      neuter gender includes the masculine and the feminine.

      12.6  This  Agreement  shall bind  the  Parties in  accordance  with the
      provisions hereof, and nothing herein  shall be construed or interpreted
      as creating any rights in  any person or entity not a  signatory hereto,
      or as being a stipulation in favor of any such person or entity.

      12.7  If contemporaneously  with this  Agreement becoming  effective, or
      thereafter,  any  Party  requests  that  any   other  Party  execute  an
      appropriate  memorandum or  notice of  this Agreement  in order  to give
      third parties notice of record of same and submits same for execution in
      recordable form, such memorandum or notice shall be duly executed by the
      Party to which such request is made and delivered promptly thereafter to
      the Party  making  the request.    Upon receipt,  the Party  making  the
      request shall cause the memorandum or notice to be duly  recorded in the
      appropriate real property or other records affecting the Balancing Area.

      12.8  In  the  event  Internal  Revenue Service  regulations  require  a
      uniform  method of computing  taxable income by  all Parties, each Party
      agrees  to compute  and report  income to  the Internal  Revenue Service
      based on  the quantity of Gas  taken for its account  in accordance with
      such  regulations,   insofar  as  same   relate  to  sales   method  tax
      computations. 

13.   ASSIGNMENT AND RIGHTS UPON ASSIGNMENT

      13.1  Subject to the provisions of  Sections 13.2 (if elected) and  13.3
      hereof,  and  notwithstanding  anything  in this  Agreement  or  in  the
      Operating Agreement to the contrary, if any Party assigns (including any
      sale, exchange or  other transfer) any  of its  working interest in  the
      Balancing  Area when  such  Party is  an  Underproduced or  Overproduced
      Party,  the assignment or  other act of  transfer shall, insofar  as the
      Parties hereto are concerned, include  all interest of the assigning  or
      transferring  Party in the Gas, all rights  to receive or obligations to
      provide or take Makeup Gas  and all rights to receive or  obligations to
      make  any monetary  payment which  may ultimately  be due  hereunder, as
      applicable.    Operator  and  each of  the  other  parties  hereto shall
      thereafter  treat  the  assignment  accordingly, and  the  assigning  or
      transferring Party shall look solely to its assignee or other transferee
      for any interest in the Gas or monetary payment that such Party may have
      or to  which it may be  entitled, and shall cause its  assignee or other
      transferee to assume its obligations hereunder.

      13.2  Notwithstanding  anything  in  this Agreement  (including  but not
      limited to the provisions  of Section 13.1 hereof)  or in the  Operating
      Agreement to the contrary, and subject to the provisions of Section 13.3
      hereof,  in the  event an  Overproduced Party  intends to  sell, assign,
      exchange or otherwise transfer any of its interest in a  Balancing Area,
      such  Overproduced  Party  shall notify  in  writing  the  other working
      interest owners who  are Parties hereto in  such Balancing Area  of such
      fact  at  least  sixty  (60)  days  prior  to closing  the  transaction.
      Thereafter, any  Underproduced Party  may demand from  such Overproduced
      Party  in  writing,  within  thirty  (30)  days  after  receipt  of  the
      Overproduced Party's  notice, a  cash settlement of  its Underproduction
      from the  Balancing Area.   The Operator shall  be notified of  any such
      demand and of any cash  settlement pursuant to this Section 13,  and the
      Overproduction  and  Underproduction of  each  Party  shall be  adjusted
      accordingly.  Any cash settlement  pursuant to this Section 13 shall  be
      paid  by the Overproduced Party on or before the earlier to occur (i) of
      sixty  (60) days after  receipt of  the Underproduced Party's  demand or
      (ii) at the closing of the  transaction in which the Overproduced  Party
      sells, assigns,  exchanges  or otherwise  transfers  its interest  in  a
      Balancing Area on the same basis as otherwise set forth  in Sections 7.3
      through 7.6  hereof, and shall  bear interest at  the rate set  forth in
      Section  7.7 hereof, beginning  sixty (60)  days after  the Overproduced
      Party's  sale, assignment, exchange  or transfer of  its interest in the
      Balancing Area  for any  amounts not  paid.   Provided, however, if  any
      Underproduced Party  does  not so  demand such  cash  settlement of  its
      Underproduction from the Balancing  Area, such Underproduced Party shall
      look exclusively  to the assignee or other  successor in interest of the
      Overproduced  Party giving notice hereunder for the satisfaction of such
      Underproduced Party's Underproduction in  accordance with the  provision
      of Section 13.1 hereof.

      13.3  The  provisions of this Section 13  shall not be applicable in the
      event any Party mortgages  its interest or  disposes of its interest  by
      merger, reorganization,  consolidation or  sale of substantially  all of
      its assets to a subsidiary or parent company, or to any company in which
      any parent or subsidiary of such Party  owns a majority of the stock  of
      such company.

                                  EXHIBIT "E"

         Attached to and made a part of the Joint Operating Agreement
     dated effective                     , by and between Shell Deepwater

                               Development Inc. 

                      and Reading & Bates Development Co.

                   CERTIFICATION OF NONSEGREGATED FACILITIES

Contractor certifies that  it does not maintain  or provide for  its employees
any segregated  facilities at any of  its establishments and that  it does not
permit  its  employees to  perform their  services at  any location  under its
control,  where segregated  facilities are  maintained.   Contractor certifies
further that  it will not maintain or provide for its employees any segregated
facilities at  any of  its  establishments and  that it  will  not permit  its
employees to perform their  services at any location, under its control, where
segregated facilities are maintained.  Contractor agrees that a breach of this
certification is a violation of the Equal Opportunity Clause in any Government
contract between Contractor and Operator.  As used in this  certification, the
term "segregated facilities" means any  waiting rooms, work areas, rest  rooms
and  other  storage  or  dressing  areas,  parking  lots,  drinking fountains,
recreation  or entertainment  areas,  transportation, and  housing  facilities
provided for employees  which are segregated by  explicit directive or are  in
fact segregated  on the basis  of race,  color, religion,  or national  origin
because of habit,  local custom or otherwise.   Contractor further agrees that
(except  where   it  has  obtained  identical   certifications  from  proposed
subcontractors) prior to the award of subcontracts exceeding $10,000 which are
not exempt from  the provisions of the Equal Opportunity  Clause; that it will
retain  such  certifications  in  its files;  and  that  it  will  forward the
following notice to  such proposed subcontractors  (except where the  proposed
subcontractors have  submitted  identical  certifications  for  specific  time
periods):

NOTICE  TO PROSPECTIVE  SUBCONTRACTORS  OF REQUIREMENT  FOR CERTIFICATIONS  OF
NONSEGREGATED  FACILITIES.   A Certification  of Nonsegregated  Facilities, as
required by the May 9, 1967 order on Elimination of  Segregated Facilities, by
the Secretary of Labor  (32 Fed.  Reg. 7439, May 19,  1967), must be submitted
prior to the award of a subcontract exceeding $10,000 which is not exempt from
the provisions  of the  Equal Opportunity  Clause.   The certification  may be
submitted either for each subcontract or for all  subcontracts during a period
(i. e., quarterly, semi-annually or annually). (1968  MAR.) (Note: The penalty
for  making false  statements in offers  is prescribed  in 18.   U.S.C. 1001.)
Whenever used in the foregoing Section,  the term "contractor" refers to  each
party to this agreement.

                                  EXHIBIT "F"

         Attached to and made a part of the Joint Operating Agreement
dated effective                   , by and between Shell Deepwater Development
                   Inc. and Reading & Bates Development Co.
                            NEWS RELEASE GUIDELINES


1.    General: The Parties hereby establish the following guidelines regarding
the issuing of a  release to the news media concerning  operations on any area
affected  by the  Agreement to  which this  Exhibit is  attached.   Subject to
Article 7.5 (News  Releases) of the  Agreement, no release  to the news  media
shall  be  made until  all  testing  (excluding flow  testing)  in  a well  is
completed  and  all  such  final  test  results  have  been  received  by  all
Participating Parties.

2)    Basic News  Release: If a  proposed news  release is not  approved as  a
      General  Matter per Article  7.5 (News  Releases) of the  Agreement, the
      Operator  may, at its discretion, prepare a basic news release using the
      following content guidelines:

            1 .   Name of Well and Rig Name
            2.    Location of  Well by Area,  Block, Water Depth  and Adjacent 
                  State
            3.    Bonus Price and Sale Date
            4.    Tested Interval(s), if appropriate
            5.    Participants and Percentages
            6.    Acreage Controlled

      Proposed basic news releases shall be transmitted for review and comment
      to the  Non-Operating  Parties not  less  than  72 hours  (exclusive  of
      Saturdays, Sundays, and holidays) before being issued to the news media.
      Any Non-Operating Party may have  its name excluded from the  release by
      so informing the Operator during the 72-hour news release review period.
      This exclusion however,  does not apply to the list  of participants and
      percentage participation.

3)    Supplemental News  Release:  Following receipt  of  Operator's  proposed
      release,  any Participating  Party  may  prepare  its own  news  release
      ("Preparing Party") using the  content guidelines above.  The  Preparing
      Party shall send the  other Parties a copy of the  proposed supplemental
      news release by  facsimile transmission.   A Non-Operating Party's  news
      release shall not be issued in advance of the Operator's release.

4)    No  News Release  by Operator: The  Operator may  choose not  to issue a
      basic news release per Paragraph 2) above.  In this event, within thirty
      (30) days of  the failed vote as  a General Matter in  Article 7.5 (News
      Releases), a Non-Operating Party may make a limited news release.   This
      release shall  be submitted to  the Operator for  review of content  and
      issuance  of the news  release.   After Operator's review,  the proposed
      release shall be submitted to other Non-Operating Parties for review and
      comment.  After  review and  comment by  all Parties,  the limited  news
      release may be given to the news media. 

                                  EXHIBIT "G"

Attached to and made a part of the Joint Operating Agreement dated effective   
               , by and between Shell Deepwater Development Inc. and Reading &
                             Bates Development Co.

                INTEGRATED PROJECT TEAM and TECHNOLOGY SHARING

      WHEREAS,  the Parties, desire  to further provide  for the formation and
operation  of an  Integrated Project  Team for  the  purpose of  assisting the
Operator with  preparing a Development Plan  for the Contract Area  and in the
planning, design  and  engineering of  an Initial  Production  System and  any
Subsequent Production System for the Contract Area; and,

      WHEREAS, Each of the Parties  has considerable experience in  developing
offshore oil and gas properties and the design and installation  of an Initial
Production System will require significant engineering effort; and,

      WHEREAS, The Parties desire  to establish an understanding,  relating to
i)  the costs and expenses of the Integrated Project Team to be charged to the
Joint  Account and the  method in which  such costs  shall be shared,  ii) the
overall  operation, administration  and management  of the  Integrated Project
Team, and  iii) the exchange, development  and use of technology  collected or
developed by or through this Integrated Project Team.

      NOW, THEREFORE,  in  consideration of  the premises  and  of the  mutual
promises exchanged and contained within  this Integrated Project Team Exhibit,
the Parties have reached the following agreement  concerning the formation and
operation of the Integrated Project Team.

                            SECTION 1.0 DEFINITIONS

      As used in this  Exhibit, the initially capitalized terms shall have the
      meanings assigned  in  Article 2.0  of  the  Operating Agreement  or  as
      specified below:

      1.1   Confidential Work Product: shall mean all proprietary geophysical,
      geochemical,  drilling, engineering  or  other similar  technical  data,
      along with  information, reports,  studies, analysis, models  or similar
      data  and documents that  are developed  by the Integrated  Project Team
      within the  scope of  its work  or  received from  or on  behalf of  the
      Parties for use in the  Integrated Project Team's work.  The  term shall
      include all proprietary information  developed by the Integrated Project
      Team, the cost of which is charged to the Joint Account.  The provisions
      of this Exhibit shall not be  applicable to "Confidential Data", as that
      term is defined in the Operating Agreement.

      1.2   Project Manager:  shall mean the designated  representative of the
      Operator  who  will  direct,  supervise  and  oversee  the work  of  the
      Integrated Project Team.

      1.3   Integrated  Project   Team  ("IPT"):  shall  mean   the  group  of
      management,  supervisory,  technical  and  support  personnel  from  the
      Parties  assigned to  assist the  Operator with preparing  a Development
      Plan for  a Prospect Area, and for the planning, design, engineering and
      installation of  a  Production System  for a  Prospect  Area as  further
      provided for in this Exhibit "G".   The IPT shall be formed pursuant  to
      Article 12.0 (Development Plans).

      1.4   Operating  Agreement:  shall  mean  that  certain  Joint Operating
      Agreement effective to which this Exhibit "G" is attached.

      1.5   Background  Technology: shall  mean  any proprietary  geophysical,
      geochemical  drilling, engineering  or  other  similar  technical  data, 
      information,  reports, studies,  analysis,  models or  similar data  and
      documents developed or  obtained by a Party outside of  the scope of the
      Operating Agreement  (and this Exhibit) that is  disclosed by a Party or
      exchanged by the Parties for use by the Integrated Project Team.

      1.6   Employees:  Employees  shall   mean  any   individual  under   the
      employment  of any  Party  to  this  Operating Agreement  including  any
      Affiliate or contractor which may represent any Party hereunder.

                 SECTION 2.0 INTEGRATED PROJECT TEAM FORMATION

      2.1   Formation and Staffing of the  Integrated Project Team: An IPT  of
      project, technical and  support personnel may be established pursuant to
      the terms  of Article 12.2 (Proposal of  Integrated Project Team) of the
      Operating   Agreement.      Each   Participating   Party  may   nominate
      representatives  possessing specific  backgrounds as  identified by  the
      Project Manager  to progress the  Development Plan.   Each Participating
      Party may nominate  a number of IPT  members equal to its  Participating
      Interest in the IPT.  Each Party shall have the right to have percentage
      representation on the IPT up to its respective working interest share of
      the total number of technical personnel to be assigned to the Integrated
      Project Team.  However, a Party shall not be precluded  from having more
      or less than its respective Participating Interest representation on the
      IPT, if approved by the Project Manager and consistent with the needs of
      the IPT.   The Project Manager must  approve actual participation of any
      individual nominated by a  Party for participation on the  IPT, and such
      approval shall not be unreasonably withheld.

            2.1.1 Employee Staff Contribution: Each Participating Party in the
            IPT AFE shall have the right (but not the  obligation) to nominate
            its  Employees as  members of  the IPT.   Nominated  Employees may
            include project, technical or support personnel.

            2.1.2 Affiliate  and  Contract Staff:    The IPT  may  utilize the
            resources of Affiliates, consultants  and contractors to carry out
            the  work of  the IPT.   Consultants  or contractors  nominated by
            Participating  Parties to  serve  on the  IPT  in the  place  of a
            Participating Party's  employees are  included under the  terms of
            this Section 2.1.2. The individuals nominated for participation by
            the Participating Parties  must have experience  commensurate with
            the position  to  which they  are being  nominated,  who could  be
            expected to meaningfully participate and contribute to the work of
            the IPT.

      2.2   Status  of Team  Members: Each  Employee member  of the  IPT shall
      remain  an employee  of its  respective company  and each  company shall
      remain responsible for their employees' salaries and benefits as well as
      maintaining   worker's  compensation   insurance  on   their  employees.
      Accordingly, each  Party will  continue to administer  the compensation,
      benefits,  allowances and staff  planning of  its employees on  the IPT.
      Each Party retains the right to ultimately  direct the details and means
      by  which  their  representatives  participate  on  the  IPT.   However,
      Employees who participate on the  IPT will receive team assignments  and
      general supervision  from the Project  Manager in connection  with their
      day  to day work.   An individual selected to  the IPT shall, insofar as
      possible, and consistent with the needs  of the IPT and the individual's
      employer, serve on the IPT for the duration of the IPT.  Notwithstanding
      the above, some IPT members may be selected for specific tasks or phases
      of IPT work, and upon the conclusion of such tasks or phases  these team
      members may be dismissed by the Project Manager.

      2.3   Project Manager: The IPT shall operate under  the direction of the
      Project Manager, who shall be selected by  the Operator of the IPT.  The 
      Project Manager shall  be responsible  for making  team assignments  and
      shall  be responsible  for  the overall  management  and supervision  of
      specific work tasks for the IPT.  The Project Manager shall determine at
      whose offices the  IPT work is  to be undertaken.   The Project  Manager
      shall be  responsible for  selecting team  members from  the nominations
      provided by Parties.  The Project  Manager shall also be responsible for
      selecting  contractors to  perform  certain  IPT  activities,  acquiring
      supplies and  services needed by  the IPT and for  instituting rules and
      procedures  for  maintaining  confidential  information.    The  Project
      Manager  shall  also  be responsible  for  making  presentations on  any
      Initial or Subsequent Production  System and associated documentation at
      meetings which are conducted under the Operating Agreement.

      2.4   Work Scope of  the Integrated Project Team:  The primary objective
      for forming any  IPT is to pool the talents of  the Parties in preparing
      feasibility  studies prior  to Development  Operations and  in planning,
      design, engineering, fabricating, transportation and installation of any
      Production System.  The proposal of the  Development Plan (including the
      Initial  Production  System) and  commitment of  funds thereto  shall be
      handled  in accordance  with  Article 12.0  (Development  Plans) of  the
      Operating  Agreement.    For  any project  undertaken  by  the  IPT, the
      Operator shall provide: (1) a  memo describing the anticipated scope  of
      the team's work to be undertaken in reasonable detail such that the Non-
      Operator may make an informed  decision concerning its participation  in
      the Integrated  Project Team; (2) a memo  describing the type and number
      of staff required to  complete the assignment; and (3)  an AFE itemizing
      the  Operator's estimate  of the  Cost of  the Integrated  Project Team.
      Approval of the IPT AFE (and scoping memo) shall be  handled pursuant to
      Article 12.1.1 (Integrated Project Team) of the Operating Agreement.

      2.5   Reports by the Integrated Project  Team: The IPT shall review  the
      progress of its work with all Participating  Parties at least quarterly,
      and  present  the  results  of  any  studies   or  planning  upon  their
      conclusion.  The time  and place of the meetings of the IPT and location
      for  conducting IPT  activities  shall  be  determined  by  the  Project
      Manager.

      2.6   Integrated Project Team Costs: The costs and  expenses for the IPT
      shall  be  charged  to  the  Joint  Account  pursuant  to  Exhibit  "C",
      (Accounting Procedure)  of the Operating Agreement.   Each Participating
      Party  in the IPT  shall be  responsible for its  Participating Interest
      share  of  the  IPT  expenses,  regardless  of  its  level  of  Employee
      participation on the IPT.

            2.6.1 Employee Charges:  Each Participating Party in  an IPT shall
            recover the costs of Employees assigned to  or associated with the
            IPT  through  charges  to  the  joint  account  under Exhibit  "C"
            (Accounting Procedure) of the Operating Agreement.

            2.6.2 Contractors and Consultants: The Project Manager  may retain
            the  services  of consultants  and  contractors  as is  reasonably
            necessary to carry out the studies and tasks assigned  to the IPT.
            Costs of  such consultants  and contractors  assigned  to the  IPT
            shall  be  recovered by  Operator  through  charges to  the  joint
            account under Exhibit "C"  (Accounting Procedure) of the Operating
            Agreement.  So  long as the Costs of the  consultant or contractor
            are  within the scope  and amount of an  approved AFE, the Project
            Manager's retention  of consultants  shall not  require additional
            approval by the Participating Parties.

      2.7   Liability of  Integrated Project Team Members.   Each Party agrees
      to defend,  hold  harmless and  indemnify  the  other Parties  from  and
      against any  loss, damage, claim  suit, liability, judgment  and expense
      (including attorney fees and other costs of litigation) for any personal
      injury  (including death) of  its Employees  on the IPT  irrespective of
      whether any  other party or its employees may have been or maybe alleged
      to have been negligent or otherwise legally responsible.

                        SECTION 3.0 Security Provisions

3.1   Security   Policies:  All  Operator   and  Non-Operator   Employees  and
associates with the IPT shall honor Operator's security system and shall treat
all information  directly or indirectly learned  or received by  virtue of its
participation on the IPT  as confidential in accordance with the provisions of
Operator's security manual, and all revisions  thereto which are made prior to
termination of this  Exhibit.  A copy of the security manual and any revisions
thereto shall  be  made available  to Non-Operator  Employees  by the  Project
Manager  for their use during the project.  This obligation of confidentiality
shall also apply to any  other proprietary and confidential information  which
may  relate to matters other than  the Contract Area to  which IPT members are
exposed  by  virtue of  working  in  Operator's offices.    Operator  will use
reasonable efforts to minimize the  exposure of Non-Operator personnel to  the
Operator's proprietary and confidential information.   In no event shall  such
confidential information  be  disclosed to  a third  party  without the  prior
written  consent  of  Operator  and Non-Operator  except  as  provided  in the
Operating Agreement.

                                  SECTION 4.0
                                Confidentiality

4.1   Confidentiality   Obligation:   Each   Party  agrees   to   maintain  as
confidential and  not to use or  disclose to any third  party the Confidential
Work  Product, except as  expressly provided hereunder,  for a confidentiality
period commencing  on the  date of execution  of the  Operating Agreement  and
extending through the later of (i)  two (2) years following the termination of
the IPT work pursuant to Section 8 of this Exhibit "G" or (ii) seven (7) years
following the date of execution of  the Operating Agreement.  After expiration
of   the  confidentiality   period  the   receiving  Party's   obligations  of
confidentiality and restrictions  on use shall  cease.  Each  Party agrees  to
treat the disclosure of the Confidential Work Product in the same manner as it
treats its own confidential information.

      4.1.1 Background  Technology:  The Parties  shall  use  best efforts  to
      declare and  list Background  Technology and  information which  will be
      utilized  by  the IPT  prior to  establishment of  the  IPT.   However a
      Participating   Party  may  declare   and  list   additional  Background
      Technology  after establishment of  the IPT if  it deems such technology
      will  be beneficial  to the  IPT.   Prior to  disclosing any  Background
      Technology to the IPT, the  Participating Parties shall agree to  exempt
      the  Background  Technology  from  the terms  of  this  Exhibit  and the
      Operating Agreement.  If such agreement is not obtained, such Background
      Technology need not be disclosed to the IPT.  The  receiving Party shall
      maintain any Background Technology received as Confidential Work Product
      under this Exhibit.  In no event will Background Technology be disclosed
      to a  third  party  without  the prior  written  consent  of  the  Party
      providing  the  Background  Technology  to  the  IPT.    Any  Background
      Technology  presently  owned  and  developed by  a  Party  prior  to the
      effective date of the Operating Agreement shall remain the sole property
      of that Party.

      4.1.2 Consultant  Agreements:   The  Project  Manager  and   each  Party
      soliciting work  from third party  contractors and consultants  (or from
      Affiliates) in  connection with  the IPT shall  use its best  efforts to
      secure  contract terms  with such third  party which  contain applicable
      confidentiality terms and which support rights to the Parties consistent
      with this Agreement. 

4.2   Exceptions  and  Permitted  Disclosures:  Any  Participating  Party  may
disclose  Confidential Work  Product to  third parties  if such  disclosure is
either  an exception to  the confidentiality  obligation as listed  in Article
7.1.1  (Exceptions  to Confidentiality)  or  is a  permitted  disclosure under
Article 7.1.2 (Permitted Disclosures) of the Operating Agreement.

      4.2.1 Patent  Application  Disclosures:  Notwithstanding  the foregoing,
      each Party may use such  Confidential Work Product under Subarticle  5.2
      as  reasonable  necessary or  appropriate  to  file patent  applications
      pursuant  to Article  6. Prompt  notice will  be  provided to  the other
      Parties of any such filing.

      4.2.2 Subsequent Disclosures: Following the  expiration of the period of
      confidentiality  set forth in  Section 4.1 above,  each Party may freely
      use and disclose the Confidential Work Product without accounting to any
      other  Party,   subject  only  to  whatever   patent  rights,  copyright
      restrictions or  confidentiality obligations are owed  to third parties.
      Subject to  the obligations  of confidentiality  set forth  herein, each
      Party  has the right  to copy, display,  publish, distribute and prepare
      derivative  works  of  all  documents,  drawings  or  other writings  or
      materials created or  conveyed under this Exhibit, including  the rights
      to license, sell or otherwise transfer such rights.

4.3   Supporting Agreements: Each Party shall be responsible for insuring that
its respective representatives fully abide by all obligations associated  with
the  confidentiality  of  all  information  learned  as   a  result  of  their
participation  on the IPT  and agree to  convey such information  to others in
their company on a "need-to-know" basis only.  In this regard, there shall  be
limited reproduction  of  IPT generated  data.    Upon the  Project  Manager's
request,  each Party shall  require its respective  employees participating on
the  IPT  to   execute  a  confidentiality   agreement  consistent  with   the
confidentiality  obligations specified  in  the Operating  Agreement and  this
Exhibit and shall furnish the other Parties with a copy of same  upon request.
Operator  shall be  responsible for  securing confidentiality  agreements from
outside contract services.

                 SECTION 5.0 USE OF CONFIDENTIAL WORK PRODUCT

5.1   Receipt  of Confidential Work  Product: Each  Party will be  entitled to
receive  the full reports  of all  technical studies, detail  reports, general
conclusions,  numerical  results, and  design  drawings  from all  engineering
services that are charged to  the Joint Account pursuant to an AFE in which it
is a Participating Party, whether those engineering  services are performed by
a Party participating in the IPT, an Affiliate or by a third party.

5.2   Right to use Confidential Work Product: Each Participating Party may use
for its own account (and free  of cost) all Confidential Work Product received
or developed by the IPT which is (1) Background Technology or (2) developed by
the EPT under  this Agreement  or the cost  of which is  charged to the  Joint
Account.  Each Participating Party  may disclose Confidential Work Product  to
other  members of joint  ventures or production  sharing arrangements in which
the Party  or Affiliate has  an ownership interest provided  the other members
agree to hold the Confidential  Work Product in confidence and to  use it only
for the benefit of that joint venture or production sharing arrangement.

5.3   Third Party Limitations: The Parties acknowledge that various Background
Technology may  have  been  received  from  third  parties  under  preexisting
restrictions  (e.g.,  that  the  Party may  disclose  the  third  party source
information  to  a  partner in  a  joint  venture  only under  obligations  of
confidentiality  and  under  restriction  to  use  the   information  only  in
connection with the joint venture).  Each delivering Party agrees to identify,
in writing, any Background Technology subject to  third party restrictions and
disclose  the nature  of  the restriction  to  the  receiving Party  prior  to
disclosure  of the Background  Technology.  The  delivering Party shall secure
the receiving Party's acknowledgment of such restrictions prior to transmittal
of  such   third  party   Background  Technology.     The  receiving   Party's
acknowledgment constitutes its acceptance of such obligations and restrictions
imposed upon disclosure and use of the Background Technology.

5.4   Proprietary  Software:  During the  term  of  the IPT,  a  Party  may be
authorized to use various computer software and  programs which are identified
as being proprietary to one  of the other Parties.  Such  proprietary computer
software and programs shall not be considered joint property and such computer
software and programs are not a deliverable under this Agreement.  Use of such
proprietary software  and programs is  not a  grant of license  of any  rights
outside of this Agreement and the Parties retain all rights  to such property.
Computer  software  and programs  which  are not  proprietary  to  one of  the
Parties,  but which  were developed  jointly by the  IPT, shall  be considered
Confidential Work Product and joint property.

                SECTION 6.0 INVENTIONS, PATENTS AND COPYRIGHTS

6.1   Patent  Assignment with  Right  to License  and  Sublicense: Patents  on
inventions  which  are   (1)  conceived  solely  by  outside   contractors  or
consultants  employed for the  joint account,  or conceived jointly  among the
Parties  (each including its  respective Affiliates) while  working on the IPT
and (2) from  work which has been funded by the Joint Account will be assigned
to the Operator.   The Operator  agrees to grant  each Participating Party  an
irrevocable,  non-exclusive, worldwide, royalty-free license to practice under
all such patents,  including the right to grant sublicenses under such patents
to any third  party or Affiliate on such other terms  and conditions that such
Party deems appropriate, without accounting to any other Party.

6.2   Patent Assignment and  License With Limited Right to Sublicense: Patents
on inventions not covered in Section 6.1, which are conceived or first reduced
to practice  (actual or  constructive), by  a Party  or its Affiliate,  either
alone or jointly with any outside contractors or consultants, and  as a direct
result  of work which has  been funded by the Joint  Account, will be owned by
that Party.  The Party owning any such patent agrees to grant each other Party
an irrevocable, non-exclusive, worldwide,  royalty-free license under all such
patents to  make, have made, use and  have used such invention  for such other
Party's  own  business, including  any  joint  venture  or production  sharing
arrangement in which  such other Party  has an  ownership interest.   Further,
each such other Party has the right to extend these rights to its Affiliates.

6.3   No Commitment  to Disclose  Technology:  Except as  expressly set  forth
above, nothing  in this Exhibit  "H" will  be deemed to  require any  Party or
Affiliate to grant  any licenses under any  patents to anyone.   The scope and
content  of any Background  Technology disclosed under  this Agreement will be
determined in the sole discretion of the disclosing Party.

                    SECTION 7.0 WARRANTIES AND INDEMNITIES

7.1   Disclaimer of Warranties: ALL INFORMATION  DISCLOSED OR RECEIVED BY  THE
PARTIES  HEREUNDER  SHALL  BE  PROVIDED  ON  AN  "AS  IS"  BASIS  WITHOUT  ANY
WARRANTIES, EITHER EXPRESS OR IMPLIED, AS TO THE ACCURACY, VALIDITY OR UTILITY
OF SUCH INFORMATION OR THAT IT CAN BE USED WITHOUT INFRINGING ANY THIRD  PARTY
PATENT,  COPYRIGHT,  OR  OTHER  PROPRIETARY  RIGHT.     WITHOUT  LIMITING  THE
PRECEDING,  ANY EXPRESS, IMPLIED OR STATUTORY  WARRANTY OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE  ARE EXPRESSLY EXCLUDED FROM THIS  AGREEMENT.
IN NO  EVENT SHALL A PARTY  CONVEYING OR DISCLOSING INFORMATION  BE LIABLE FOR
ANY  INCIDENTAL, CONSEQUENTIAL OR  OTHER DAMAGES  ARISING OUT OF  OR RESULTING
FROM THE USE OF INFORMATION CONVEYED OR DISCLOSED UNDER THIS EXHIBIT.

7.2   Indemnities: Each  Party agrees to  defend, hold harmless  and indemnify
the  other Parties from and against  any loss, damage, claim, suit, liability,
judgment and expense (including attorney  fees and other costs of  litigation)
related to  or in connection  with its use  (including use by  others which it
authorizes), outside of the Contract  Area, of any Confidential Work  Product,
Background  Technology or  other  information or  other technology  disclosed,
exchanged under or developed pursuant to this Exhibit.

                     SECTION 8.0 MISCELLANEOUS PROVISIONS

8.1   Export  Controls:  Each  Party  agrees to  abide  by  the  United States
Department  of  Commerce regulations  concerning  the export  or  re-export of
United  States  source  technical  data, or  the  direct  product  thereof, to
unauthorized destinations  and regulations in respect  of information supplied
by or on behalf of any other Party hereunder.

8.2   Independent Research.    Nothing herein  shall in  any  way restrict  or
impair  the  right of  any  Party  to conduct  its  own independent  research,
development, or  design activities  relating to  the  evaluation of  alternate
deepwater  development systems  even though  such activities  may parallel  or
overlap the activities of the IPT.  Any such Party conducting such independent
research  activities shall be  under no  obligation pursuant to  the Operating
Agreement or this Exhibit to  disclose any results of independent  research to
the other Party(ies) or with respect to the use  or disposition of the results
of independent research, including but not limited to all information and data
resulting therefrom.

8.3   Duration of the Integrated Project Team:  The IPT shall remain in  place
until (1) the team has completed the work described in the IPT AFE and scoping
memo, or  (2) the planning,  design, construction,  installation and  start-up
phase  of any Production System has  been completed, or (3)  IPT work has been
terminated by  approval  of the  Participating Parties  as  a General  Matter,
whichever is  the earlier event.   Upon dissolution  of the IPT,  the Operator
shall conduct any further work required for the installation of the Production
System.   Any AFE  in progress  at the  time of  the  IPT's dissolution  shall
continue to be accounted for under Exhibit "C" (Accounting Procedure).

8.4   Assignability:    Except  in those  certain  transactions  set forth  in
Article  24.2.3 of  the Operating  Agreement, a  third party (not  currently a
Party to  this Agreement) who acquires a Working Interest in the Contract Area
may join the IPT upon  the approval of the Participating Parties  as a General
Matter.   A new Party joining the IPT must agree, in writing, to undertake all
obligations set forth  for a Party under  this Exhibit.   Such new Party  will
have all rights, duties and  obligations under this Exhibit regarding  the use
of all Confidential  Work Product exchanged or developed prior  to the date it
joins the IPT and during its participation thereunder.  However, patent rights
received  by such new Party hereunder pursuant  to Section 7.0 of this Exhibit
shall be  limited to patents based  on developments after the  date such Party
joins the IPT.  In the  event that a Party assigns its entire interest  in the
Leases,  the assigning  Party shall  have  all the  rights  specified in  this
Exhibit,  including patent  rights  and license  rights  thereunder, based  on
developments and exchanges prior to the effective  date of such assignment and
shall continue to have all obligations and duties with respect  thereto as set
forth  in this Exhibit  "H" relating  to the confidentiality,  restrictions on
use, patents,  indemnity,  and as  applicable,  duties  to license  the  other
Parties.

8.5   Re-instatement of Integrated Project Team: The IPT  may be reinstated by
the Operator to  assist in further  work on the  Initial Production System  or
planning and designing any Subsequent  Production System.  Any reinstated  IPT
shall utilize the procedures of this Exhibit, with any applicable time periods
in  Article  12   of  the  Operating  Agreement  running  from   the  date  of
reinstatement of the IPT. 

                                  EXHIBIT "H"

         Attached to and made a part of the Joint Operating Agreement
dated effective          , by and between Shell Deepwater Development Inc. and
                        Reading & Bates Development Co.

                         DISPUTE RESOLUTION PROCEDURE

1.    OVERVIEW

      A.    Description and Goals.  Arbitration as used in this statement is a
      procedure  whereby an Arbitrator resolves any claim(s), controversy(ies)
      or dispute(s)  (the "Dispute") between Shell  Deepwater Development Inc.
      and              (hereinafter  referred to  singularly  as  "Party"  and
      collectively as "Parties") arising out of, relating  to or in connection
      with the             Joint Operating Agreement (hereinafter "Agreement")
      including the interpretation, validity, termination or breach thereof.

            (i)   Binding:  The arbitration process is  binding on the Parties
            and this arbitration  is intended to be a  final resolution of any
            Dispute between the Parties as described above, to the same extent
            as a final judgment  of a court of  competent jurisdiction.   Each
            Party hereby expressly covenants that it shall not resort to court
            remedies except as provided for herein, and for preliminary relief
            in aid of arbitration

            (ii)  Violation:  A  non-prevailing Party shall pay  all legal and
            court  costs incurred by  the other  Party in connection  with the
            enforcement  of the  final  resolution of  any Dispute  under this
            Dispute Resolution  Procedure.   Suits, actions or  proceedings in
            connection with such enforcement shall be instituted in the United
            States District Court  for the Eastern District  of Louisiana, and
            pursuant to Title IX of the United States Code.  Each Party waives
            any option or objection which it may now or thereafter have to the
            laying  of the venue  in any such  suit, action  or proceeding and
            irrevocably submits to the jurisdiction of such  court in any such
            suit, action or proceeding.

      B.    Duty to Negotiate:  The Parties shall  inform one another promptly
      following the occurrence or  discovery of any item or event  which might
      reasonably be  expected to result  in a Dispute  in connection  with the
      Agreement.  The Parties will attempt to  resolve satisfactorily any such
      matters.

      C.    Notice  of Unresolved Dispute:   Should a  Dispute arise which the
      Parties cannot resolve satisfactorily,  either Party may deliver  to the
      other  Party   a  written  notice   of  the   Dispute  with   supporting
      documentation  as  to the  circumstances  leading  to  the Dispute  (the
      "Notice of Dispute").  The Parties,  within ten (10) Business Days  from
      delivery  of  such   notice,  shall  then  each   appoint  a  management
      representative  ("Management Representative")  who has  no prior  direct
      involvement with the subject matter of the Notice of Dispute  and who is
      duly authorized to investigate, negotiate, and settle  the Dispute.  The
      Management Representative for each Party shall meet  and confer as often
      as they deem reasonably necessary for a period not exceeding thirty (30)
      days  following the  delivery of  the Notice  of Dispute  in good  faith
      negotiations to resolve the Dispute amicably.  The parties in their sole
      discretion may also agree to utilize the service of a  mediator pursuant
      to a  joint  engagement.   Unless otherwise  provided  herein, all  such
      notices  shall  be  served  in accordance  with  the  provisions  of the
      Agreement.

II.   ARBITRATION PROCESS 

      A.    Arbitration:   If the  Parties are  unable to resolve  the Dispute
      within forty (40) days following  the receipt of the Notice of  Dispute,
      or such additional time as  may be mutually agreed, the matter  shall be
      submitted to  arbitration in  accordance with  the procedures set  forth
      below.

      B.    Initiation of Arbitration:  The arbitration shall be initiated  by
      either party delivering to the other a Notice of Intention to Arbitrate.

      C.    Governing Procedures:   Except  as expressly provided  herein, the
      arbitration shall  be conducted in  accordance with procedures  that are
      mutually acceptable  to the  Parties,  including limited  depositionless
      discovery.

            (i)   Governing  Law:   The Arbitrator  shall apply  the governing
            substantive  law  of  the  state  chosen  by  the Parties  to  the
            Agreement.

      D.    Arbitrator:    There  shall  be  one   Arbitrator,  who  shall  be
      independent,  impartial  and  experienced  in  arbitration  proceedings.
      Arbitrator  shall  be  experienced  in  the  oil  and gas  industry  and
      knowledgeable or specializing as to  the subject matter involved in  the
      Dispute.  The  Arbitrator shall be chosen as follows:  the Parties shall
      have thirty  (30) days from  the delivery  of a Notice  of Intention  to
      Arbitrate to mutually  agree on an  Arbitrator.  If  the Parties  cannot
      mutually  agree within  said thirty  (30) day  period, then  the Parties
      shall, within  three (3)  days after expiration  of the thirty  (30) day
      period, apply to the American Arbitration  Association as the Appointing
      Authority, for the appointment of an  Arbitrator for or on behalf of the
      Parties,  and in such  case the  Arbitrator appointed by  the Appointing
      Authority  shall meet the  criteria set forth  in this Section  II.D and
      shall act as if mutually agreed to by the Parties.

            (i)   Conflicts: Any Arbitrator, prior  to his or her appointment,
            shall disclose to the Parties all actual or perceived conflicts of
            interest and  business relationships involving the  Dispute or the
            Parties, including but not limited to,  any professional or social
            relationships,   present  or   past,  with   any  Party   (or  its
            affiliates), including any Party's  (or its affiliates) directors,
            officers and  supervisory personnel  and counsel.   Any Party  may
            challenge in writing  the appointment or continued  service of any
            Arbitrator for lack of independence, partiality or any other cause
            likely   to  impair  such   Arbitrator's  ability  to  effectively
            participate in  the proceedings  or render  a  fair and  equitable
            decision.  Where such challenge  is made, the Appointing Authority
            shall uphold or dismiss the  challenge.  In the event a  challenge
            is upheld, the Arbitrator shall  be replaced.  A replacement  will
            be  selected in  the same  manner as  the original  Arbitrator was
            selected.  If an Arbitrator resigns or becomes unable or unwilling
            to  continue to serve  as the  Arbitrator, a replacement  shall be
            selected in the same manner as that Arbitrator was chosen.

            (ii) Multi-Party  Arbitrations:  Where  more than two  Parties are
            involved in the  Dispute ("Multi-Party Arbitration"),  all Parties
            shall jointly name and agree as the  appointment of the Arbitrator
            meeting the  criteria set forth  in Section  II.D. above.   If the
            Parties cannot agree as to the choice of the Arbitrator within the
            said thirty  (30) days,  any  of the  Parties hereto  may in  like
            manner,  within three (3)  days after written  notice to the other
            Parties, apply to the Appointing Authority for  the appointment of
            an Arbitrator  meeting the  criteria  set forth  in Section  II.D.
            above. 

            (iii)  Management  of  the  Arbitration:    The  Arbitrator  shall
            actively manage the  proceedings as he or she deems  best so as to
            make  the same  expeditious,  economical and  less burdensome  and
            adversarial than litigation.

      E.    Confidentiality:   All documents,  briefs, testimony, transcripts,
      as well as, all Arbitrator  decisions shall be confidential.   Likewise,
      the views,  suggestions,  admissions, proposals  and  other  information
      exchanged in  the arbitration are  confidential and are  inadmissible in
      any other proceeding.

      F.    Costs and Expenses:  The Parties  involved in the dispute shall be
      equally  responsible for all  costs, fees  and expenses incurred  by the
      Arbitrator and  any other incidental  costs incurred in  connection with
      the arbitration proceeding shall also  be borne equally by the  Parties.
      Each  Party  is  solely  responsible for  its  own  attorneys'  fees and
      expenses incurred  in the Arbitration.   In  the event of  a Multi-Party
      Arbitration, all  costs  and expenses  shall  be  borne equally  by  all
      Parties.

      G.    Submissions:  Within thirty (30)  days after the selection of  the
      Arbitrator,  each Party shall  provide the  Arbitrator with a  short and
      plain submission defining the issues to be decided and the nature of the
      relief  that  the  Arbitrator  may  award  (the   "Submission").    This
      Submission  shall explicitly  authorize the  Arbitrator to  decide these
      issues.   This authorization shall  stay in force  for period no  longer
      than nine (9) months from this Submission.  If the Parties are unable to
      reach consensus as to the issues involved, the Arbitrator in  his or her
      sole  discretion shall frame the issues  through a reasonable procedure.
      The  Arbitrator will render decisions on the specific issues established
      and  shall fashion any  remedy that the  Arbitrator deems appropriate so
      long  as  that  remedy  is  consistent  with  the  Parties'  Submissions
      hereunder.   Any  money judgment  entered  by  the Arbitrator  shall  be
      payable in U.S. dollars.

H.    Transcriptions: The  presentations and argument will  be transcribed for
the benefit of the Arbitrator and the Parties.

I.    Discovery:    Commencing  thirty  (30) days  after  the  receipt  of the
opposing Party's Submission, each Party  may serve upon the other Party  up to
ten (10) requests  for the production of  documents, including subparts.   The
requests  shall be made  in good faith  and not be  served for the  purpose of
delay or  harassment.   Each request shall  describe the  type of  document(s)
sought and each request shall be limited  to documents that are relevant to  a
claim  or defense in  the Arbitration proceeding,  or reasonably calculated to
lead to the discovery of admissible evidence.  The requests need not be served
all at once but may be served in stages.

            (i)   The Party served  with a request under this  provision shall
            provide the adverse  Party with copies of the requested documents,
            and identify  the request  to which  each document  is responsive,
            within  twenty (20) days  of the receipt  of the request.   If the
            Party served  with a request  objects to the production  of any of
            the requested documents, it  shall nevertheless produce within the
            permitted time all documents responsive to any request that is not
            objected to by that Party.

            (ii)  A  Party that  is served  with a  request may  challenge the
            propriety of the request within the time permitted for response by
            a short written objection which shall be  forwarded to the adverse
            Party and to the Arbitrator.   The adverse Party shall submit  its
            response, if any, to the objecting Party and the Arbitrator within
            five (5) days of  receipt of the objection.  The  Arbitrator shall
            consider the request, the objection and the  response, if any, and 
            decide  whether  the  production shall  be  allowed  or denied  or
            whether the request should be modified within  ten (10) days after
            the submission of the adverse Party's response.

J.    Presentations:  No  later than twenty-five (25)  days prior to  the date
that presentations to the Arbitrator  are to begin, each Party will  submit to
the Arbitrator and serve on the other Party a written position statement.  The
original statement of each Party shall not exceed thirty-five (35) typewritten
letter-size pages.  Each Party shall have the right to submit reply statements
no later than fifteen (15) days prior  to the date of the presentation.   Such
reply statements shall not exceed fifteen (15) typewritten letter-size pages.

            (i)   All documents  and affidavits  that a  Party intends to  use
            during its presentation  shall be submitted to  the Arbitrator and
            served on the other Party with the  position and reply statements.
            All  demonstrative exhibits  shall be exchanged  five (5)  days in
            advance of the presentations.

            (ii)  The presentations  to the  Arbitrator shall extend  for such
            time as the  Arbitrator agrees to be appropriate.   In the absence
            of  any agreement, the presentations for both Parties shall extend
            for no longer than two (2) days and shall be  concluded within six
            (6) months  after selection of  the Arbitrator.   Presentations of
            each Party shall occur successively with no intervening delay.

            (iii) Each   Party   shall  make   an   oral  and/or   documentary
            presentation of its position in such order  and in accordance with
            the time schedule established  by the Arbitrator.   The Arbitrator
            may  question each of  the presenters during  or following any and
            all presentations.

      The  Arbitrator shall determine  a reasonable time  and location for the
      presentations.

K.    Decision  and Award:   The Arbitrator shall  promptly (within sixty (60)
days of conclusion of the  presentations or such longer period as  the Parties
may mutually agree)  determine the claims  of the Parties  and render a  final
decision in writing.  The decision  shall state with specificity the  findings
of fact and  conclusions of law on  which it rests.  The  decision rendered by
the Arbitrator may be enforced in accordance with Section I.A.(ii), above, and
may  only be  appealed pursuant  to Section L  below.   The decision  shall be
served upon each of the  Parties by facsimile transmission and by  first class
mail.

            (i)   If applicable law allows pre-award interest, the  Arbitrator
            may,  in his or  her discretion, grant  pre-award interest and, if
            so, such  interest may be at commercial  rates in the state chosen
            by  the Parties pursuant  to Section II.C.(i)  during the relevant
            period.   Further, the  arbitrator may, in  his or her discretion,
            award to the prevailing party(ies)  its (their) attorneys fees and
            costs   of  arbitration.      The  Arbitrator   shall  not   award
            consequential,  punitive,   indirect   or  other   noncompensatory
            damages.

            (ii)  Within ten (10) days of receipt of the award either side may
            submit a  Motion to  Modify the  award.  A  response shall  be due
            within  fifteen (15) days thereafter and the Arbitrator shall rule
            thereon within fifteen (15) days after receipt of the response.

            (iii) Judgment  on the  award may  be entered  in a  United States
            District Court for the Eastern  District of Louisiana at any  time
            within one year after the decision is made. 

L. Vacation of Award and Appeal:  An appeal from an order or judgment pursuant
to this Section II.L. shall be  instituted in the United States District Court
for the Eastern District of Louisiana.  The court may vacate the award only if
the award was procured by or through fraud or corruption  or bias or prejudice
of the Arbitrator.  Each Party waives any option or objection which it may now
or  thereafter have to  the laying of  the venue of  any such suit,  action or
proceeding and irrevocably  submits to the  jurisdiction of  the court in  any
such suit, action or proceeding.  Each Party agrees that a remedy at law for a
violation of  this Section II.L. may not be adequate and therefore agrees that
the remedies of specific performance and injunctive  relief shall be available
in the event of any  violation in addition to any other right or remedy at law
or in equity to which any Party may be entitled.

M.    Res  Judicata:  To the  extent  permitted by  law,  any decision  of the
Arbitrator shall not  be res judicata or have any binding  effect in any other
litigation  or arbitration  where any Party  to this  Agreement may  also be a
party.

                                  EXHIBIT "I"

         Attached to and made a part of the Joint Operating Agreement
  dated effective ______________, by and between Shell Deepwater Development
                                     Inc.
                      and Reading & Bates Development Co.

                       MEMORANDUM OF OPERATING AGREEMENT
                            AND FINANCING STATEMENT

1.0   This   Memorandum  of  Operating   Agreement  and   Financing  Statement
      (hereinafter  called "Memorandum") is  effective as of  the ______day of
      ____________________.

2.0   The  parties hereto have  entered into an  Operating Agreement effective
      _______________ (hereinafter referred  to as the "Operating  Agreement")
      providing for the development and  production of crude oil, natural  gas
      and  associated  substances  from  the  lands  and  oil and  gas  leases
      described in Exhibit "A-1" of the Operating Agreement attached hereto as
      Attachment "1" (hereinafter called the "Contract Area"), and designating
      as  Operator to conduct  such operations for  itself and the undersigned
      Non-Operators.

3.0   The Operating  Agreement provides for certain  liens, mortgages, pledges
      and/or  security interests  to secure  payment by  the parties  of their
      respective share of costs under the Operating  Agreement.  The Operating
      Agreement contains an Accounting Procedure, along with other provisions,
      which  supplement the  lien, mortgage,  pledge and/or  security interest
      provisions, including non-consent clauses which provide that parties who
      elect not to participate  in certain operations shall be  deemed to have
      relinquished their interest in  production until the carrying consenting
      parties  are able  to  recover their  costs of  such  operations plus  a
      specified  amount.    Should  any  person  or   firm  desire  additional
      information regarding the Operating Agreement or wish  to inspect a copy
      of the  Operating  Agreement, said  person or  firm  should contact  the
      Operator at P.O. Box 4587, Houston, Texas.

4.0   The purpose of  this Memorandum is to more fully  describe and implement
      the  liens, mortgages, pledges and/or security interests provided for in
      the Operating Agreement, and to  place third parties on notice  thereof.
      The purpose of this Memorandum is  also to place third parties on notice
      that  the  Operating  Agreement  does contain  a  Preferential  Right to
      Purchase provision.

5.0   In  consideration of the  mutual rights  and obligations of  the parties 
      hereunder, the parties hereto agree as follows:

      5.1   The Operator shall conduct and direct and have full control of all
            Operations on the Contract Area as permitted  and required by, and
            within the limits of the Operating Agreement.

      5.2   The liability  of  the Parties  shall  be  several, not  joint  or
            collective.    Each  party  shall  be  responsible  only  for  its
            obligations and shall  be liable only for  its proportionate share
            of costs.
      5.3   Each Non-Operator grants to Operator a lien  and mortgage upon all
            its rights, title and interests in the oil, gas and mineral leases
            and  other real property,  in the Contract Area,  and a pledge and
            security interest  in its share of oil  and gas when extracted and
            its interest  in  all equipment  and property  whether movable  or
            immovable,  corporeal or  incorporeal attached  thereon, all  such
            property being  more fully described  in Paragraph 6.0,  to secure
            payment  of its  share of  expense, arising  out of  the Operating
            Agreement together with interest  thereon at the rate  provided in
            the Accounting Procedure referred to  in Paragraph 3.0 above.   To
            the extent that Operator has a security interest under the Uniform
            Commercial Code  of  the  state, Operator  shall  be  entitled  to
            exercise  the rights  and remedies  of a  secured party  under the
            Code.   The bringing of a  suit and the obtaining  of judgement by
            Operator  for  the secured  indebtedness  shall not  be  deemed an
            election of  remedies or otherwise  affect the rights  or security
            interest for the payment thereof.

      5.4   If any Non-Operator  fails to  pay its  share of  costs when  due,
            Operator   may   require   other  Non-Operators   to   pay   their
            proportionate  part of the unpaid  share, whereupon the other Non-
            Operators  shall be  subrogated  to Operator's  lien and  security
            interest.

      5.5   The Operator  grants to Non-Operators a lien, mortgage, pledge and
            security  interest  equivalent  to  that granted  to  Operator  as
            described in Paragraph 5.3 above, to secure payment by Operator of
            its own share of costs when due.

6.0   For  purposes of protecting said  liens, mortgages, pledges and security
      interests,  the parties  hereto agree  that the  mutual lien,  mortgage,
      pledge,  security interest, and  this Memorandum shall  cover all right,
      title and interest of the debtor(s) in:

      6.1   Property Subject to Liens, Pledges, and Security Interests

      (A)   All personal property located upon or used  in connection with the
            Contract Area.
      (B)   All  equipment,  fixtures,  and  appurtenances  upon  or  used  in
            connection with  the Contract Area, whether  movable or immovable,
            corporeal or incorporeal.
      (C)   All oil,  gas and associated  substances of value in,  on or under
            the Contract Area which may be extracted therefrom.
      (D)   All  accounts and revenues  resulting from  the sale of  the items
            described  in  subparagraph  (C) at  the  wellhead  of every  well
            located on  the  Contract Area  or  on  lands pooled  or  unitized
            therewith.
      (E)   All  items   used,  useful,  or  purchased   for  the  production,
            treatment, storage,  transportation, manufacture, or  sale of  the
            items described in subparagraph (C).
      (F)   All  accounts, contract  rights,  rights under  any gas  balancing
            agreement,  general  intangibles,  equipment,  inventory,  farmout
            rights, option farmout rights,  acreage and or cash contributions, 
            and conversion rights, whether now owned  or existing or hereafter
            acquired or arising, including but not limited  to all interest in
            any    partnership,   tax   partnership,    limited   partnership,
            association,  joint venture,  or other  entity or  enterprise that
            holds, owns, or controls any interest  in the Contract Area or  in
            any property encumbered by this Memorandum.
      (G)   All severed and extracted oil, gas, and associated substances  now
            or hereafter produced from  or attributable to the Contract  Area,
            including without limitation oil, gas and associated substances in
            tanks   or   pipelines   or   otherwise   held   for    treatment,
            transportation, manufacture, processing or sale.
      (H)   All the  proceeds  and products  of  the  items described  in  the
            foregoing paragraphs  now existing  or hereafter arising,  and all
            substitutions   therefor,  replacements  thereof,   or  accessions
            thereto.
      (I)   All personal  property and fixtures now and  hereafter acquired in
            furtherance of the purposes  of the Operating Agreement.   Certain
            of the above-described items are or are  to become fixtures on the
            Contract Area.
      (J)   The proceeds and products of collateral are also covered.

      6.2   Property Subject to Liens and Mortgages

      (A)   All real property and oil and gas leases within the Contract Area,
            including all oil, gas and  associated substances of value in,  on
            or under the Contract Area which may be extracted therefrom.
      (B)   All  equipment,  fixtures,  and  appurtenances  upon  or  used  in
            connection with  the Contract Area, whether  movable or immovable,
            corporeal or incorporeal.
      (C)   All real  property  and fixtures  now  and hereafter  acquired  in
            furtherance of the purposes  of the Operating Agreement, including
            any easement, right-of-way, surface leases, and fee acreage.

7.0   The property described in Paragraphs 6.1 and 6.2 will be financed at the
      wellhead of the well or wells  located on the Contract Area or  on lands
      pooled or unitized  therewith, and this  Memorandum is to  be filed  for
      record in the real  estate records of the county or  parish in which the
      Contract Area  is located, or,  in the case  of offshore leases,  in the
      county or  parish  adjacent  thereto  and  in  the  appropriate  Uniform
      Commercial  Code records.   All parties who  have executed the Operating
      Agreement are  identified on Attachment  " 1 ".  All farmors  and option
      farmors, if any,  who have granted support within  the Contract Area are
      identified on Attachment "2".

8.0   Upon default of any covenant or condition of the Operating Agreement, in
      addition  to  any  other  remedy afforded  by  law,  each  party  to the
      Operating  Agreement and  any  successor to  such  party by  assignment,
      operation  of law,  or otherwise,  shall have, and  is hereby  given and
      vested with, the power and authority to take possession of  and sell any
      interest  which the defaulting  party has  in the property  described in
      Paragraphs 6.1 and 6.2 and to foreclose this lien, mortgage, pledge, and
      security interest in the manner provided by law.

9.0   Upon expiration of the subject  Operating Agreement and the satisfaction
      of  all  debts,  the  Operator  shall  file  of  record  a  release  and
      termination on behalf of all parties concerned.  Upon the filing of such
      release  and  termination,  all  benefits  and  obligations  under  this
      Memorandum shall  terminate  as to  all  parties  who have  executed  or
      ratified  this Memorandum.   In  addition, the  Operator shall  have the
      right to file a continuation statement on behalf of all parties who have
      executed or ratified this Memorandum.

10.0  It is  understood and agreed  by the  parties hereto that  if any  part, 
      term, or  provision of  this  Memorandum is  by the  courts  held to  be
      illegal  or in  conflict  with any  law  of the  state  where made,  the
      validity of the remaining portions or provisions  shall not be affected,
      and the  rights and obligations  of the parties  shall be construed  and
      enforced as if  the Memorandum did not contain the particular part, term
      or provision held to be invalid.

11.0  This Memorandum shall be binding upon  and shall inure to the benefit of
      the  parties  hereto and  to  their  respective heirs,  devisees,  legal
      representatives,  successors and assigns.   The  failure of one  or more
      persons  owning  an  interest  in  the  Contract  Area to  execute  this
      Memorandum shall not in any manner affect the validity of the Memorandum
      as to those persons who have executed this Memorandum.

12.0  A  party  having  an interest  in  the  Contract  Area can  ratify  this
      Memorandum by  execution and delivery of an  instrument of ratification,
      adopting and  entering into this Memorandum, and such ratification shall
      have  the  same effect  as  if  the ratifying  party  had  executed this
      Memorandum  or a counterpart  thereof.  By  execution or ratification of
      this  Memorandum, such  party  hereby consents  to its  ratification and
      adoption by any party  who may have or  may acquire any interest in  the
      Contract Area.

13.0  This Memorandum may be executed or ratified in  one or more counterparts
      and  all  of  the  executed  or  ratified  counterparts  shall  together
      constitute  one instrument.  For purposes of recording, only one copy of
      this Memorandum  with individual signature pages  attached thereto needs
      to be filed of record.

                                          Non-Operators:
WITNESSES:                                ______________________(Company)

                                          Attorney -in-Fact
                                          Date: ________________


                                ACKNOWLEDGMENTS


STATE OF __________________

_______OF __________________


      On   this   ______day  of   ____________19____,   before   me,  appeared
_____________________to me personally known, who, being by  me duly sworn, did
say that  he/she is the  ___________________of________________________and that
the foregoing instrument was signed in behalf of that corporation by authority
of its Board of Directors and  acknowledged the instrument to be the free  act
and deed of that corporation.

                                                      NOTARY PUBLIC in and for


                                                      ________________________

My Commission expires: _______________ 


                         ATTACHMENT "1" TO EXHIBIT "I"

         Attached to and made a part of the Joint Operating Agreement
    dated effective ________________________ by and between Shell Deepwater
Development Inc.
                     and Reading and Bates Development Co.

                       MEMORANDUM OF OPERATING AGREEMENT
                            AND FINANCING STATEMENT


I.    DESCRIPTION OF LEASES


II.   OPERATOR


III.  REPRESENTATIVES AND ADDRESSES 



                                                               Exhibit 10.162

                      LIMITED LIABILITY COMPANY AGREEMENT

                               TABLE OF CONTENTS

I.    DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1
      1.1      Definitions  . . . . . . . . . . . . . . . . . . . . . . . .  1

II.   FORMATION OF COMPANY; FILINGS . . . . . . . . . . . . . . . . . . . .  6
      2.1      Formation  . . . . . . . . . . . . . . . . . . . . . . . . .  6
      2.2      Registered Office and Registered Agent.  . . . . . . . . . .  6
      2.3      Filings  . . . . . . . . . . . . . . . . . . . . . . . . . .  6
      2.4      Relationship of the Parties  . . . . . . . . . . . . . . . .  6

III.  NAME; PURPOSE; PLACE OF BUSINESS; TERM  . . . . . . . . . . . . . . .  7
      3.1      Name . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
      3.2      Purposes . . . . . . . . . . . . . . . . . . . . . . . . . .  7
      3.3      Place of Business  . . . . . . . . . . . . . . . . . . . . .  8
      3.4      Term . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8

IV.   MEMBERS; RESTRICTION ON DISPOSITION OF INTEREST;PREFERENTIAL RIGHT OF
      PURCHASE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
      4.1      Members  . . . . . . . . . . . . . . . . . . . . . . . . . .  8
      4.2      Restrictions on the Disposition of an Interest . . . . . . .  8
      4.3      Preferential Right of Purchase . . . . . . . . . . . . . . .  9
      4.4      Disposition Documents  . . . . . . . . . . . . . . . . . . . 11
      4.5      Legality . . . . . . . . . . . . . . . . . . . . . . . . . . 11
      4.6      Status After Disposition . . . . . . . . . . . . . . . . . . 12
      4.7      Disposition Costs  . . . . . . . . . . . . . . . . . . . . . 12
      4.8      Limitation on Transfer . . . . . . . . . . . . . . . . . . . 13

V.    CONTRIBUTIONS; DISTRIBUTIONS; FAILURETO MAKE CONTRIBUTIONS TIMELY;
      SECURITY INTEREST . . . . . . . . . . . . . . . . . . . . . . . . . . 14
      5.1      Initial Contributions  . . . . . . . . . . . . . . . . . . . 14
      5.2      Cost Overrun Contributions.  . . . . . . . . . . . . . . . . 14
      5.3      Additional Contributions . . . . . . . . . . . . . . . . . . 15
      5.4      Distributable Cash . . . . . . . . . . . . . . . . . . . . . 15
      5.5      Failure to Make Contributions  . . . . . . . . . . . . . . . 16
      5.6      Grant of Security Interest . . . . . . . . . . . . . . . . . 17
      5.7      Secured Party. . . . . . . . . . . . . . . . . . . . . . . . 18

VI.   TAX MATTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
      6.1.1    Tax Matters  . . . . . . . . . . . . . . . . . . . . . . . . 18
               6.1.2    Information Request by TMP  . . . . . . . . . . . . 19
               6.1.3    TMP Agreements with IRS . . . . . . . . . . . . . . 19
               6.1.4    Inconsistent Treatment of Company Item  . . . . . . 20
               6.1.5    Communication of Proceedings to Members . . . . . . 20
               6.1.6    Requests for Administrative Adjustment  . . . . . . 20
               6.1.7    Judicial Proceedings  . . . . . . . . . . . . . . . 20
      6.2      Income Tax Compliance and Capital Accounts . . . . . . . . . 21
               6.2.1    Tax Returns . . . . . . . . . . . . . . . . . . . . 21
               6.2.2    Fair Market Value Capital Accounts  . . . . . . . . 21
               6.2.3    Information Request . . . . . . . . . . . . . . . . 21
      6.3      Elections  . . . . . . . . . . . . . . . . . . . . . . . . . 21
               6.3.1    General Elections . . . . . . . . . . . . . . . . . 21
               6.3.2    Other Elections or Consents . . . . . . . . . . . . 21
      6.4      Capital Contributions and FMV Capital Accounts . . . . . . . 22
               6.4.1    Capital Contributions . . . . . . . . . . . . . . . 22
               6.4.2    FMV Capital Accounts  . . . . . . . . . . . . . . . 22
      6.5      Company Allocations  . . . . . . . . . . . . . . . . . . . . 23
               6.5.1    FMV Capital Account Allocations . . . . . . . . . . 23
               6.5.2    Tax Returns and Tax Basis Capital Account
                  Allocation. . . . . . . . . . . . . . . . . . . . . . . . 23
      6.6      Termination and Liquidating Distributions  . . . . . . . . . 24
               6.6.1    Termination . . . . . . . . . . . . . . . . . . . . 24
               6.6.2    Section 708(b)(1)(A) Termination  . . . . . . . . . 25
               6.6.3    Balancing . . . . . . . . . . . . . . . . . . . . . 25
               6.6.4    Final Distribution  . . . . . . . . . . . . . . . . 26
      6.7      Transfers, Indemnification, and Correspondence . . . . . . . 26
               6.7.1    Transfers of Company Interests  . . . . . . . . . . 26
               6.7.2    Indemnification . . . . . . . . . . . . . . . . . . 26
               6.7.3    Correspondence  . . . . . . . . . . . . . . . . . . 27
      6.8      No Interest  . . . . . . . . . . . . . . . . . . . . . . . . 27
      6.9      Return of Capital  . . . . . . . . . . . . . . . . . . . . . 27

VII.  ADMINISTRATIVE MATTERS  . . . . . . . . . . . . . . . . . . . . . . . 27
      7.1      Books and Records  . . . . . . . . . . . . . . . . . . . . . 27
      7.2      Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 28
      7.3      Bank Accounts; Investments . . . . . . . . . . . . . . . . . 28
      7.4      Monthly Progress Reports . . . . . . . . . . . . . . . . . . 29

VIII.MANAGEMENT; MEMBERS COMMITTEE; MANAGER;
      STANDARD OF CARE; INDEMNIFICATION . . . . . . . . . . . . . . . . . . 29
      8.1      Management . . . . . . . . . . . . . . . . . . . . . . . . . 29
      8.2      Members Committee  . . . . . . . . . . . . . . . . . . . . . 29
      8.3      Manager  . . . . . . . . . . . . . . . . . . . . . . . . . . 34
      8.4      Standard of Care . . . . . . . . . . . . . . . . . . . . . . 35
      8.5      Indemnification of the Representatives and the Manager . . . 35

IX.   VOLUNTARY WITHDRAWAL  . . . . . . . . . . . . . . . . . . . . . . . . 36
      9.1      Resignation by Member  . . . . . . . . . . . . . . . . . . . 36
      9.2      Wrongful Withdrawal  . . . . . . . . . . . . . . . . . . . . 37

X.    [DELETED] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

XI.   DISSOLUTION; RECONSTITUTION; WINDING UP . . . . . . . . . . . . . . . 37
      11.1     Events Deemed to Cause Dissolution . . . . . . . . . . . . . 38
      11.2     Distribution of Assets . . . . . . . . . . . . . . . . . . . 39
      11.3     Termination  . . . . . . . . . . . . . . . . . . . . . . . . 39

XII.  [DELETED] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

XIII.INSURANCE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
      13.1     Insurance Coverage . . . . . . . . . . . . . . . . . . . . . 40
      13.2     Certain Requirements . . . . . . . . . . . . . . . . . . . . 41

XIV.  MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
      14.1     Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
      14.2     Choice of Law; Submission to Jurisdiction  . . . . . . . . . 42
      14.3     Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . 42
      14.4     Entire Agreement . . . . . . . . . . . . . . . . . . . . . . 42
      14.5     Effect of Waiver or Consent  . . . . . . . . . . . . . . . . 43
      14.6     Amendment or Modification  . . . . . . . . . . . . . . . . . 43
      14.7     Binding Effect; Joinder of Additional Parties  . . . . . . . 43
      14.8     Counterparts . . . . . . . . . . . . . . . . . . . . . . . . 43
      14.9     Severability . . . . . . . . . . . . . . . . . . . . . . . . 43
      14.10    Headings . . . . . . . . . . . . . . . . . . . . . . . . . . 44
      14.11    Gender; Articles and Sections  . . . . . . . . . . . . . . . 44
      14.12    Indemnity  . . . . . . . . . . . . . . . . . . . . . . . . . 44
      14.13    Further Assurances . . . . . . . . . . . . . . . . . . . . . 44
      14.14    Independent Conduct  . . . . . . . . . . . . . . . . . . . . 45
      14.15    Deemed Assent  . . . . . . . . . . . . . . . . . . . . . . . 45
      14.16    Signing Members; Certificate of Authority  . . . . . . . . . 45
      14.17    Withholding or Granting of Consent . . . . . . . . . . . . . 46
      14.18    Waiver of Certain Rights . . . . . . . . . . . . . . . . . . 46
      14.19    U.S. Currency  . . . . . . . . . . . . . . . . . . . . . . . 46
      14.20    Dispute Resolution . . . . . . . . . . . . . . . . . . . . . 46
      14.21    Proprietary Information  . . . . . . . . . . . . . . . . . . 46
      14.22    Publicity  . . . . . . . . . . . . . . . . . . . . . . . . . 46

XV.   DISSOLUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
      15.1     Dissolution  . . . . . . . . . . . . . . . . . . . . . . . . 47
      15.2     Ancillary Agreements . . . . . . . . . . . . . . . . . . . . 47


Exhibit "A" - Description of Drillship
Exhibit "B" - Indemnification Agreements
Exhibit "C" - Sharing Ratios
Exhibit "D" - Certificate of Formation
Exhibit "E" - Form of Demand Promissory Note (Section 5.1)
Exhibit "F" - Marine Services Agreement
Exhibit "G" - Drilling Services Agreement
Exhibit "H" - Construction Financing Credit Agreement

==============================================================

                     LIMITED LIABILITY COMPANY AGREEMENT 


       This Limited  Liability Company  Agreement is made and  entered into on
October  28,  1996  by  and between  Conoco  Development  Company,  a Delaware
corporation having its principal office  at 600 North Dairy Ashford,  Houston,
Texas  77079 (sometimes referred to as "Conoco") and RB Deepwater  Exploration
Inc.,  a Nevada corporation  having its principal  office at 901 Threadneedle,
Suite 200, Houston, Texas  77079 (sometimes referred to as "Reading & Bates").

       FOR  AND  IN  CONSIDERATION  of  the   mutual  covenants,  rights,  and
obligations contained herein, the benefits to be  derived therefrom, and other
good  and valuable  consideration, the  receipt and  sufficiency of  which are
hereby acknowledged, the Members hereby agree as follows:


                                   ARTICLE I

                                  DEFINITIONS

       1.1   Definitions.   As  used in  this Agreement,  the following  terms
shall have the respective meanings indicated:


             "Act" means the Delaware  Limited Liability Company  Act, 6  Del.
       C. Sections 18-101, et seq., as amended, from time to time.

             "Affiliate" shall  mean, with  respect to  any Person,  any other
       Person directly  or indirectly controlling  (including but not  limited
       to all directors and officers of such  Person), controlled by, or under
       direct or indirect common control with such Person.  

             "Assets" shall  mean the  Drillship and all  other assets of  the
       Company  of every  kind  whatsoever,  real  or  personal,  tangible  or
       intangible.

              "Agreement" shall mean this Limited Liability Company Agreement.

             "Bankrupt" or  "Bankruptcy" shall mean any  of the events set out
       in 18-304 of the Act happening with respect to a Member.

             "Base Term" shall mean the period  of time commencing on the date
       of  this Agreement and ending  on the date  one day  after the later of
       (i) the  completion of the  Drilling Contract, including any extensions
       or renewals  thereof, or  (ii) the complete  discharge of the  Purchase
       Note, including all interest accrued thereon.

             "Builder"  shall mean the  shipbuilder selected by the Company to
       construct and deliver the Drillship.

             "Company" shall mean Deepwater Drilling L.L.C.  

             "Control"  (including   with  correlative   meanings,  the  terms
       "controlling", "controlled  by" and  "under direct  or indirect  common
       control") shall mean, with  respect to a Person that is a  corporation,
       the  right to  the exercise, directly  or indirectly, more  than 50% of
       the voting  rights attributable to the  shares of the controlled Person
       normally  entitled  to  vote for  the election  of directors  and, with
       respect  to  a  Person  that  is not  a  corporation,  the  possession,
       directly or  indirectly, of the power to direct or  cause the direction
       of the management or policies of the controlled Person.

             "Code" shall mean the  Internal Revenue Code of 1986, as  amended
       from time to time, and the regulations issued thereunder.

             "Default Interest Rate" shall mean a rate equal to the lesser  of
       (i) five (5)  percentage points in excess of  a varying rate per  annum
       that is equal  to the interest  rate publicly quoted by  Texas Commerce
       Bank, N.A., Houston, Texas, from  time to time, as its prime commercial
       rate, with  adjustments in  such varying rate  to be made  on the  same
       date as  any change in  the aforesaid prime  rate, or  (ii) the maximum
       non-usurious rate permitted by applicable law.

             "Delinquent Member"  shall have the meaning  attributed to it  in
       Section 5.5.

             "Designated  Representative"  shall  mean  (a)  when  used   with
       respect  to Reading & Bates,  or any successor or permitted assign, the
       chief executive officer  of the ultimate  parent of Reading &  Bates or
       any  successor or  permitted assign  of Reading  & Bates;  and (b) when
       used with respect  to Conoco, or any  successor or permitted  assign, a
       person  who is  at  least  a Vice  President  of Conoco  Inc.,  or  the
       President of the successor or permitted assign of Conoco.

             "Dispose"  (or "Disposition")  shall mean  to sell  or  otherwise
       transfer legal  or beneficial ownership to  any property or interest in
       property, real or personal (or the act of such sale or transfer).  

             "Distributable Cash"  means all cash of  the Company in excess of
       the amount  which the Members Committee  determines is required to meet
       the   Company's   obligations   (including   reserves   for   projected
       expenditures, working capital and contingencies).

             "Disposition Notice" shall  have the meaning  attributed to it in
       Section 4.3.

             "Drilling Contract"  shall mean the minimum  five (5) year  fixed
       term (with  ten extension  options of one year  each) drilling contract
       contemplated to be awarded  by Conoco Drilling Inc. to the Company  for
       the Drillship,  such drilling  contract to be  on terms and  conditions
       satisfactory to the Members.

             "Drillship" shall  mean  the  shipshape  self-propelled  offshore
       drilling vessel  described in Exhibit "A"  hereto, together with all of
       her machinery and  equipment, including without limitation all  marine,
       drilling  and production    equipment, drill  string,  risers,  blowout
       prevention  equipment,  spare  and  repair  parts,  inventory,  whether
       located on the vessel or  on shore, belonging to the vessel (excluding,
       however, equipment to be leased from third parties). 

             "First  Member"  shall  have  the  meaning  attributed  to  it in
       Section 4.3.

             "Indemnification Agreement"  shall mean, with  respect to Reading
       & Bates,  the indemnification agreement  to be executed   by  Reading &
       Bates  Corporation, and  with  respect to  Conoco  the  indemnification
       agreement  to be  executed by  Conoco Inc.,  each such  indemnification
       agreement to be in the form attached as Exhibit "C".

             "Independent  Accountants"   shall  mean  Price  Waterhouse  LLP,
       Arthur  Anderson   LLP  or  such   other  firm   of  certified   public
       accountants, as  may from  time to time  be designated  by the  Members
       Committee.

             "Manager" shall  mean such Person as may be designated as Manager
       from time to time by the Members Committee.

             "Member "  or "Members"  shall mean the Persons  named in Section
       4.1  or any  Member  who is  admitted as  a substitute  Member pursuant
       hereto.

             "Members Committee"  shall mean  the committee  described in  and
       functioning according to Section 8.2.

             "Membership  Interest" shall  mean the  ownership interest  of  a
       Member in  the Company (which shall be considered personal property for
       all purposes)  consisting of  (i) such  Member's Sharing  Ratio of  the
       entire ownership  interests of the Company, (ii) such Member's right to
       vote  or grant or  withhold consent with respect  to Company matters as
       provided herein or  in the  Act, and (iii)  such Member's other  rights
       and privileges  as  herein  provided  or  as  provided in  the  Act  or
       otherwise at law.
 
             "Non-Delinquent Member" shall  have the meaning attributed to  it
       in Section 5.5(b).

             "Person"   shall   mean   an   individual,  corporation,   trust,
       unincorporated association, or other entity or association.

             "Permitted Security Interest"  means the security interest  given
       under Section  5.6 of the Agreement, any security interests given under
       the Construction Financing Credit Agreement attached  as Exhibit H, and
       any other security  interest in a Membership  Interest given by  one or
       more Members which is consented to in writing by all other Members.

             "Proprietary   Information"   means   patents,   trade   secrets,
       proprietary systems, designs, and processes, and technical or  business
       know-how, which is not in the public domain.

             "Purchase  Note"  shall   mean  the  promissory  note  or   notes
       constituting the  permanent financing by the Company of the purchase of
       the Drillship, such note or notes not to have a term  greater than five
       years  from delivery  of the  Drillship by the  Builder, or to  be in a
       principal  amount to  exceed eighty  percent (80%)  of the  acquisition
       cost  of the  Drillship,   without the  prior written  approval of  the
       Members  (such financing to  be on  a basis of recourse  limited to the
       Drillship,  her earnings and  insurances); Conoco  or an  Affiliate has
       the  option  to  provide  such  permanent  financing  for  the  Company
       provided:  (i) the interest rate is  no greater than 25 basis points in
       excess of that interest rate and on such other terms as are  comparable
       to any  other permanent  financing available to  the Company, and  (ii)
       such option is exercised  in writing by Conoco  to the Company no later
       than ninety (90) days  prior to the scheduled delivery of the Drillship
       by the Builder to the Company .  

             "Representatives"  shall have  the meaning  attributed to  it  in
       Section 8.2(c).

             "Second  Member"  shall  have  the meaning  attributed  to  it in
       Section 4.3.

             "Sharing Ratio"  shall mean,  with respect to each  Member, as of
       the  date  of  this Agreement,  the  percentage set  forth  beside such
       Member's name on Exhibit "C" to this Agreement.

             "TMP" shall have the meaning attributed to it in Section 6.1.


                                  ARTICLE II

                         FORMATION OF COMPANY; FILINGS


       2.1   Formation.   The Company  shall be organized by  the Members upon
execution  and delivery of this Agreement and the  execution and filing of the
Certificate of Formation of the Company to the Delaware Secretary  of State in
accordance with and pursuant to the Act, substantially in the form attached as
Exhibit "D"  to  this  Agreement.   Conoco  or Reading  &  Bates shall  be  an
"authorized person" within  the meaning of the  Act for purposes of  executing
the  Certificate of  Formation.   The  Manager  may provide  the Members  with
written evidence  of their  Membership Interest in  such form  as the  Members
Committee may  from time  to time  determine, provided that,  if issued,  such
written evidence shall always  indicate that a Member  shall not transfer  its
Membership  Interest except in  accordance with  the terms of  this Agreement.
Except  as  provided  to  the  contrary  in  this Agreement,  the  rights  and
obligations of the Members shall be governed by the provisions of the Act.  

       2.2   Registered Office  and Registered Agent.   The Company's  initial
registered  office shall  be at  the office  of its  registered agent  at 1209
Orange  Street,  Wilmington,  Delaware  19801, and  the  name  of  its initial
registered agent at such address shall be The Corporation Trust Company.

       The registered office and registered agent may  be changed from time to
time by filing the address of the new registered office and/or the name of the
new registered agent with the Delaware Secretary of State pursuant to the Act.


       2.3   Filings.  The Members, the Members Committee and/or the  Manager,
as applicable, shall execute, deliver  and file such additional documents  and
perform such  additional acts consistent with  the terms of this  Agreement as
may be necessary  to comply with  the requirements of  law for the  formation,
qualification,   and  operation  of  a  limited   liability  company  in  each
jurisdiction in which the Company shall conduct business.

       2.4   Relationship of  the Parties.  The  Members understand and  agree
that the arrangement  and undertakings evidenced by the Agreement  result in a
partnership for purposes of federal  income taxation and certain state  income
tax laws which incorporate or follow federal income tax principles.  For every
other purpose of the  Agreement, the Members  understand and agree that  their
legal  relationship to  each other and  to any third  parties under applicable
state law  is that  of members  of a limited  liability company  and not  as a
partnership.


                                  ARTICLE III

                    NAME; PURPOSE; PLACE OF BUSINESS; TERM


       3.1   Name.    The  name of  the Company  shall be  "Deepwater Drilling
L.L.C.", and the business of the Company shall be conducted under such name or
under any other name or names as the Members  Committee may from time to  time
elect, or as may be necessary to comply with the laws of each  jurisdiction in
which the Company conducts, or proposes to conduct, business.

       3.2   Purposes.   The purposes  of the  Company  are (a)  to cause  the
Drillship  to be  built and  equipped, as  described in  Exhibit "A",  to take
delivery  of the  Drillship from  the Builder,  to operate  the Drillship  and
perform  the  Drilling  Contract  and  other  drilling  and related  contracts
obtained  by the  Company  for the  Drillship, and  to carry  out any  and all
modifications to the Drillship deemed necessary or  appropriate by the Members
Committee (including  modifications to  the Drillship  which might  change the
overall use  of  same from  a  mobile offshore  drilling  unit to  a  floating
production,  storage and  offloading  vessel),  (b)  to obtain  the  necessary
permanent and construction financing [it being understood and agreed that with
respect to  the construction financing Conoco or  an Affiliate of Conoco shall
provide the necessary cost  overrun guaranties in a form  acceptable to Conoco
or  its Affiliate and  the Company  (such construction financing  meeting such
other conditions  as Conoco or its  Affiliate and the Company  may require) to
support  such  financing  for  the Company  from  third  parties  (without any
obligation of  Reading & Bates to  provide any such guaranties)  to enable the
Company to acquire the Drillship (including entering into the Purchase Note)],
and to enter into from time to  time such other financing arrangements as  may
be  necessary, appropriate, or  advisable to enable  the Company to accomplish
its purposes and to mortgage, pledge, assign, grant a security interest in, or
otherwise encumber the Drillship, its earnings and insurances,  and any or all
of  the other  Company  assets to  secure  the Purchase  Note  and such  other
financing arrangements,  (c) to  sell, assign, lease,  exchange, or  otherwise
Dispose of, or  refinance or additionally finance, all or substantially all of
the Company's interest in one  or more or all  of its assets, (d) to  maximize
the profits of  the Company, and (e) to engage in  all activities and to enter
into, exercise  the rights and  enjoy the  benefits under,  and discharge  the
obligations  of the  Company  pursuant  to,  all  contracts,  agreements,  and
documents that  may  be necessary,  appropriate, or  advisable  to enable  the
Company to accomplish the purposes  set forth in clauses (a), (b), (c) and (d)
of this sentence,  and (f) any other lawful business  purpose or activity that
may be  legally exercised by a limited liability company under the Act, as the
Members may agree.

       3.3   Place  of  Business.   The  principal  place of  business  of the
Company shall be at 901 Threadneedle,  Suite 200, Houston,  Texas 77079.   The
Company may establish offices at such other places within or outside the State
of Texas as the Members  Committee may from time to time designate.

       3.4   Term.  The Company  shall  be deemed to have  commenced effective
as  of the date the Certificate of Formation  of the Company is filed with the
Delaware Secretary of State.   The Company  shall continue  until the close of
Company business on December 31, 2026 unless  sooner terminated as provided in
this Agreement.  


                                  ARTICLE IV

               MEMBERS; RESTRICTION ON DISPOSITION OF INTEREST;
                        PREFERENTIAL RIGHT OF PURCHASE


       4.1   Members.   Simultaneously with the  execution of this  Agreement,
Conoco and Reading & Bates are hereby admitted as Members  of the Company.

       4.2   Restrictions  on the  Disposition  of an  Interest.   Each Member
shall be entitled from  time to time, without the prior consent of the Members
Committee,  but subject to the provisions of  Sections 4.4, 4.5, 4.6, and 4.7,
to Dispose of all of its Membership Interest in the Company to an Affiliate of
such Member.   Except as set  forth in the immediately  preceding sentence, no
Member shall have the right to effect a Disposition of all or any part of  its
Membership Interest  in the Company  unless and until  (i) the consent  of the
Members Committee has  been obtained and (ii)  there has been  compliance with
the  provisions  of Section  4.3, 4.4,  4.5,  4.6, and  4.7.   If  the Members
Committee consents to the Disposition of a Membership Interest in the Company,
the provisions of Section 4.3 shall then become applicable  to the Disposition
in  question.  Any attempted Disposition by  a Person of a Membership Interest
or  right,  or  any  part  thereof,  in  or  in  respect  of  the  Company  in
contravention of this Section 4.2  shall be, and is hereby declared,  null and
void ab initio.  
 
       4.3   Preferential  Right of  Purchase.   (a)  Subject to  Section  4.2
should any  Member at any time  desire to Dispose  of all or a  portion of its
Membership Interest in the Company pursuant  to a bona fide offer from another
Person (other  than  an Affiliate),  such Member  (the  "First Member")  shall
promptly  give notice (the  "Disposition Notice") thereof  to the other Member
(hereinafter  referred to  as the  "Second Member").   The  Disposition Notice
shall  set  forth  all  relevant  information  in   respect  of  the  proposed
Disposition,  including, without  limitation,  the  name  and address  of  the
prospective acquirer and each  Person that Controls the prospective  acquirer,
the purchase price  (all of which must be  payable in cash), and the  terms of
any delayed  payment of the purchase price.  The  Second Member shall have the
optional preferential right  (to be exercised  by notice to  the First  Member
given  no later  than ninety  days after  the Second  Member's receipt  of the
Disposition Notice)  to acquire, for the  same purchase price and  on the same
terms of any delayed payment that are set forth in the Disposition Notice, the
Membership Interest  that the First Member proposes to Dispose.  If the Second
Member  does  not elect  to  exercise  the optional  right  set  forth in  the
immediately preceding sentence within the  time period set forth therein,  the
First Member shall have the  right, subject to compliance with  the provisions
of Sections 4.2, 4.4, 4.5,  4.6 and 4.7, to Dispose of the Membership Interest
described in the  Disposition Notice strictly in accordance with  the terms of
the Disposition Notice for a period of sixty-five days after the expiration of
the above described ninety day preferential right period.  If the First Member
fails  so to  Dispose of  the Membership Interest  within such  sixty-five day
period,   the  proposed  Disposition   shall  again  become   subject  to  the
preferential right set forth in this Section 4.3.

       (b)   If  the Second Member  exercises the preferential right set forth
in Section 4.3(a), the closing of the acquisition by the Second Member of  the
First Member's Membership  Interest shall be  held at the  principal place  of
business of the Company on a date mutually acceptable to  the First Member and
the  Second Member, but in no event more  than sixty days after receipt by the
First Member  of notice of the  Second Member's election to  acquire the First
Member's Membership  Interest.   At  such closing  the following  transactions
shall occur:

             (i) The First Member shall convey and  assign by assignment with
general warranty of title  to the Second Member, free and  clear of all liens,
claims, and encumbrances (other than  any lien, claim, or encumbrance  created
pursuant  to Section 5.6,  set forth in  the Disposition  Notice, or otherwise
expressly  permitted by  the Second  Member), the  Membership Interest  in the
Company described  in the Disposition Notice and shall execute and deliver  to
the Second Member  all documents that may  be required to  give effect to  the
Disposition and acquisition of such interest; and

              (ii)      The Second Member  shall pay to  the First Member,  in
accordance with the terms of payment set forth in the Disposition Notice (that
is, in cash, payable  either 100% at the closing or in installments over time,
whichever  is  set  forth  in  the  Disposition  Notice), the  purchase  price
specified in the Disposition Notice  for the Membership Interest described  in
the Disposition Notice whereupon such Second Member (or its designee) shall be
admitted as  a substitute  Member  in respect  of the  Membership Interest  so
purchased.

       (c)  If  the Second Member exercises  the preferential right set  forth
in Section 4.3(a), in the notice to the First Member exercising such right the
Second Member shall be entitled to designate an Affiliate of the Second Member
to  acquire  the  Membership  Interest  of  the  First  Member.    Upon   such
designation,  the designated Affiliate  will be  substituted in the  place and
stead  of the Second  Member for purposes  of the Disposition  provided for in
Section 4.3(b)(i), but  the Second Member will remain fully  liable for making
any and all payments due under Section 4.3(b)(ii).  

       (d)   It is expressly agreed  that the remedy at  law for breach of any
of the obligations  set forth in this Section 4.3 is inadequate in view of (i)
the complexities and uncertainties in measuring the  actual damages that would
be sustained by reason of the failure of a Member to comply fully with each of
said obligations,  and (ii) the  uniqueness of  the Company  business and  the
relationship  between  the  Members.    Accordingly,  each  of  the  aforesaid
obligations  shall be, and  is hereby expressly  made, enforceable by specific
performance.

       4.4   Disposition Documents.   Except as a result of the foreclosure of
a Permitted Security Interest in a Membership Interest, the Company  shall not
recognize for any purpose any purported Disposition of all or any portion of a
Member's Membership Interest in the Company unless and until the provisions of
this Article  have been satisfied and  there shall have been  delivered to the
Manager a dated notification of such Disposition (i) executed and acknowledged
by  both the  Member effecting such  Disposition and  the Person  to whom such
Membership Interest is Disposed,  (ii) if the  Person to whom such  Membership
Interest is  Disposed is to  become a  Member in the  Company, containing  the
acceptance by  such Person of all  the terms and provisions  of this Agreement
and an  agreement by such  Person to perform  and discharge timely all  of the
obligations and liabilities in respect of the  Membership Interest Disposed of
that are  attributable to  the period  on and  subsequent to  the date  of the
Disposition, and (iii)  containing a representation that  such Disposition was
made in accordance  with all applicable laws and regulations.  Any Disposition
shall  be effective  as of  the first  day of  the calendar  month immediately
succeeding  the month  in which  the Manager  actually receives  the aforesaid
notification of Disposition.

       4.5   Legality.   Notwithstanding any  provision of  this Agreement  to
the contrary, no Disposition by a  Member shall be effective unless (i) either
(aa) the Membership Interest in the Company  subject to such Disposition shall
have been registered  under the Securities  Act of 1933,  as amended, and  any
applicable state  securities laws or  (bb) the Company  shall have  received a
favorable  opinion of the  Company's legal counsel  or of other  legal counsel
acceptable  to the  Members Committee to  the effect that  such Disposition is
exempt from registration under such laws, and (ii) unless waived by all of the
other  Members the  Company shall  have received  a favorable  opinion of  the
Company's  legal counsel or  of other legal counsel  acceptable to the Members
Committee, to  the effect that such  Disposition would not (aa)  when added to
the  total of all other  sales, assignments, or  other Dispositions within the
preceding twelve  months,  result in  the  Company  being considered  to  have
terminated  within the meaning of section  708 of the Code,  or (bb) cause the
Company to jeopardize its classification  as a partnership for federal  income
tax purposes.

       4.6   Status After  Disposition.   Each Member shall have  the right to
constitute  the  Person to  whom its  Membership  Interest in  the  Company is
Disposed as a  substituted Member if (i) the Disposition  in question has been
effected  in compliance with  the provisions of  this Article IV  and (ii) the
preferential  right  of  purchase  set  forth  in  Section  4.3  has not  been
exercised.  Each Member that Disposes  of a Membership Interest in the Company
to a  Member  or to  a Person  that is  admitted to  the Company  as a  Member
contemporaneously with such Disposition shall, as between itself and the other
Members,  remain responsible for  the timely performance  and discharge of all
obligations and liabilities in respect of the  Membership Interest Disposed of
that are attributable to the  period prior to the date of its  Disposition but
shall, as  between itself and  the other Members,  be released from  all other
Company  obligations  and  liabilities.    Each  Member  that  Disposes  of  a
Membership Interest in the Company to a Person that is not a Member or that is
not  admitted  to  the  Company  as  a   Member  contemporaneously  with  such
Disposition shall remain responsible for  the timely performance and discharge
of all  obligations  and liabilities  in respect  of  the Membership  Interest
Disposed of,  whether attributable  to the period  prior or subsequent  to the
date of its Disposition.

       4.7   Disposition  Costs.    All  costs  incurred  by  the  Company  in
connection with  the  Disposition of  a  Membership  Interest in  the  Company
(including, without limitation, the legal fees incurred in connection with the
obtaining of the legal opinions referred to in Section 4.5) shall be borne and
paid by the Member effecting the Disposition within ten days after the receipt
by such Member of the Company's invoice for the amount due.

       4.8   Limitation   on  Transfer.    Except  as  otherwise  specifically
provided  in this Agreement, no Member shall  have the right without the prior
written consent of the other Member, to:

        (i)   other than  through a  Permitted Security  Interest, dispose  of,
              assign,  pledge,  hypothecate, transfer,  exchange  or  otherwise
              transfer  for consideration  all or  any part  of its  Membership
              Interest in the Company; or

        (ii)  Give or otherwise transfer for  no consideration (whether  or not
              by operation of law)  all or part  of its Membership Interest  in
              the Company.

       In  any agreement  granting a  Permitted Security  Interest  (including
this  Agreement), provided all  other Members agree  in writing,  a Member may
provide in  such  agreement that  in  the event  of  the foreclosure  of  such
Permitted Security  Interest,  the party  foreclosing  on  same may  become  a
substituted  Member  of  the Company.    In  addition,  if  and only  if,  the
foreclosing  party is  a Member,  such Member  may designate  an Affiliate  to
exercise its rights so as to avoid a single-Member limited liability company.

        Each  Member covenants and agrees  that it will  not engage directly or
indirectly  in any business other than the business arising out of its being a
Member of the  Company; however, this provision is not  intended in any manner
to prohibit  an Affiliate of a Member from engaging in any business whatsoever
as further set out in Section 14.14.

        If  after the  expiration  of  the  Base  Term  a Member  resigns  (the
"Resigning Member"),  the remaining Member (the  "Non-Resigning Member") shall
have the option to purchase the Membership of the Resigning Member at the then
fair market value  of the Resigning  Member's Membership  Interest.  The  Non-
Resigning Member  shall have the  right to designate an  Affiliate to exercise
the rights provided in this Section.   If a Non-Resigning Member exercises the
rights given  in  this Section,  the Resigning  Member  and the  Non-Resigning
Member  shall close the sale of the  Resigning Member's Membership Interest to
the Non-Resigning  Member within twenty (20)  days after the 365  days written
notice  provided  in  Section  11.1(b),  and  the  Members  shall  follow  the
procedures set  out in  Section  4.3(b) in  connection with  the  sale of  the
Resigning Member's Membership Interest.   

                                   ARTICLE V

                     CONTRIBUTIONS; DISTRIBUTIONS; FAILURE
                TO MAKE CONTRIBUTIONS TIMELY; SECURITY INTEREST


       5.1   Initial Contributions.   Each Member agrees  that it will make an
equal initial  equity contribution to the Company  of $22,000,000 ($44,000,000
in  the aggregate by  Conoco and Reading  & Bates).  The  equal initial equity
contributions represent the Sharing Ratios of Conoco and Reading &  Bates, and
payment shall be made to the Company by such Members on the earlier of (i)  on
August  31,  1998,  (ii)  with  the prior  written  approval  of  the Member's
Committee,  on  demand, in  whole  or in  part, or  (iii)  as provided  in the
promissory notes referred  to in the  next succeeding sentence.   In order  to
secure  its obligation to  make such initial  equity contribution, each Member
agrees upon  execution of the Drilling Contract it will deliver to the Company
a demand  promissory note in favor  of the Company for  $22,000,000, each such
demand promissory note to allow the Company  to make demands contemporaneously
to each of the Members for equal  payments of such notes on the Payment  Date.
Such  promissory notes shall  be in the  form attached as  Exhibit "E" to this
Agreement and  shall be  payable as  provided therein.   It is  understood and
agreed by  the  Members that  any  and all  payments  of such  initial  equity
contribution by a Member shall contemporaneously reduce  the principal of that
Member's promissory note referred to in  this Section 5.1 by the same amounts,
and likewise any and all payments made by a Member with respect to any demands
made with respect to such Member's promissory  note shall contemporaneously be
credited  against   such  Member's  obligation  to  make  its  initial  equity
contribution under this Section 5.1.

       5.2   Cost Overrun Contributions.  The Members acknowledge that Conoco,
in its individual capacity  and not as  a Member, or  an Affiliate of  Conoco,
will enter into cost overrun guaranties (or other similar type  guaranties) in
favor  of  commercial lenders  and  in  a form  acceptable  to  Conoco (or  an
Affiliate of  Conoco), pursuant  to which Conoco  (or an Affiliate  of Conoco)
would be obliged to guarantee that the Company will be able to fund the amount
of any cost overruns incurred by Company under the Shipbuilding Contract to be
entered into between the Company and Builder with respect to the Drillship, in
order  for  the  Company  to  take  delivery  of  the  Drillship   under  such
Shipbuilding  Contract.   Accordingly, the  Members also  agree,  within three
business days  after demand by Conoco (or an Affiliate of Conoco), or any such
commercial  lender, to  contribute to  the Company  in cash,  their respective
Member's Sharing Ratio  of any  and all  such additional  monies necessary  in
order  to  enable  Company  to  take  delivery  of  the Drillship  under  such
Shipbuilding Contract (including owner furnished equipment) in compliance with
the  terms of any such  cost overrun guaranties (over and  above the amount of
the promissory notes  made by the Members  referred to in Section  5.1 and the
amount  of the  Purchase Note).   In  the event  the Shipbuilding  Contract is
terminated, rescinded or otherwise cancelled for any  reason whatsoever and as
a result demand for payment  is made of Conoco Inc. or its Affiliate under any
such cost overrun guaranty, the  Members agree to contribute their  respective
Sharing  Ratios of  the amount  necessary to  enable the Company  to reimburse
Conoco Inc. or its Affiliate for any  such payment made by Conoco Inc. or  its
Affiliate  within 45 days  after receipt by  the Company of  written notice of
same from Conoco Inc. or its Affiliate. 

       5.3   Additional  Contributions.   Except for  initial  working capital
for the Company  to commence  operations, the Members  intend for the  Company
operations to be self-sustaining, and  after the Drillship goes into  service,
for the  Company  to pay  its  costs  and expenses  from  operating  revenues.
However, without  creating any  rights,  remedies, or  claims in  favor of  or
enforceable by any third party, if  at any time the Company, as determined  by
the  Members Committee, requires  funds in excess  of operating revenues which
are necessary to allow the Company  to accomplish its objectives and purposes,
each Member shall,  and hereby agrees to, contribute to  the Company, in cash,
within ten  days after receiving  a request  therefor from  the Manager,  such
Member's  Sharing Ratio of  all such additional  monies that are  necessary to
enable the Company to cause the  Assets to be properly operated and maintained
and to discharge its costs, expenses, obligations, and liabilities.

       5.4   Distributable Cash.  The Distributable Cash  of the Company shall
be determined on a quarterly basis and the amount thereof shall be distributed
to the Members pro rata according to their Sharing Ratios (except as otherwise
required to effect  and carry out the  provisions of Section  5.5(b)(iv), 14.1
and 14.12),  provided however, that no distribution will be made to the extent
any such distribution will result in the minimum equity capital of the Company
falling below  3% of the  total assets.   Amounts payable to  any Member other
than in  its  capacity as  a  Member, such  as  for services  rendered,  goods
purchased  or  money  borrowed,  shall not  be  treated  as  distributions for
purposes of this Section 5.4. 

       5.5   Failure  to  Make  Contributions.   If  either  Member  fails  to
contribute timely all or any portion of any monetary sum that it has agreed to
contribute to  the Company pursuant to  the provisions of Section  5.1, 5.2 or
5.3  the Company  may exercise,  by  notice to  such  Member (the  "Delinquent
Member") any one or more of the following rights or remedies:

              (a) Taking  such  action  (including,  without  limitation,  the
       filing of  a lawsuit)  as the  Members Committee  deems appropriate  to
       obtain payment by the Delinquent Member of  that portion of its  agreed
       contribution that  is in default, together with interest thereon at the
       Default Interest  Rate from  the date  that such  contribution was  due
       until the date that such contribution is made,  at the cost and expense
       of the Delinquent Member;

            (b)   Permitting the other Members that desire to do so (the "Non-
      Delinquent Members") to advance that portion of the contribution that is
      in default, with the following results:

                 (i)     The sum  thus advanced  shall be deemed to  be a loan
            from the  Non-Delinquent  Member to  the Delinquent  Member and  a
            contribution of such sum to  the Company by the Delinquent  Member
            pursuant to Section 5.1, 5.2 or 5.3, as appropriate;

                 (ii)    The principal  balance of such  loan and all  accrued
            unpaid interest thereon shall be  due and payable in whole  within
            thirty  days after written  demand therefor has  been given to the
            Delinquent Member by the Non-Delinquent Member; 

                 (iii)   The loan shall bear interest at the Default  Interest
            Rate, from the  date that the  loan was made  until the date  that
            such loan, together with  all interest accrued thereon, is  repaid
            to the Non-Delinquent Member;

                 (iv)    All  distributions   from  the  Company  that   would
            otherwise  be made  to the  Delinquent  Member (whether  before or
            after dissolution of the Company)  shall, instead, be paid to  the
            Non-Delinquent  Member until  the  loan and  all interest  accrued
            thereon have  been  repaid in  full to  the Non-Delinquent  Member
            (with all such payments being applied first to interest earned and
            unpaid  and then  to  principal);    provided  however,  that  for
            purposes of Section  6.4, any amounts paid  by the Company  to the
            Non-Delinquent Member shall nevertheless be treated as adjustments
            to the Delinquent Member's Capital Account;

                 (v)     The repayment  of the loan  and all interest  accrued
            thereon shall be secured by a security  interest in the Delinquent
            Member's interest  in  the Company,  as more  fully  set forth  in
            Section 5.6, and

                 (vi)    The Non-Delinquent  Member shall  have the right,  in
            addition to the other rights  and remedies granted to it  pursuant
            to this Agreement or available to it at law or in  equity, to take
            such  action  (including,  without  limitation, the  filing  of  a
            lawsuit) as  the Non-Delinquent Member deem  appropriate to obtain
            payment by the Delinquent Member of the  principal balance of such
            loan and all accrued and unpaid interest thereon, at the cost  and
            expense of the Delinquent Member;

           (c)   Exercising the rights  of a secured party  under the Uniform
      Commercial Code of  the State of  Delaware, as more  fully set forth  in
      Section 5.6;

            (d)   Dissolving the Company; or

            (e)   Exercising any other rights and remedies available at law or
      in equity.

      5.6   Grant  of Security  Interest.   Each Member  hereby grants  to the
Company and to the Non-Delinquent  Member, in respect of any loans made by the
Non-Delinquent Member to the Delinquent Member pursuant  to Section 5.5(b), as
security for  (i) the payment of  all contributions to be made  by such Member
pursuant  to  this Agreement  and  (ii) the  repayment  of any  loans  and all
interest  accrued thereon made  by the  Non-Delinquent Member to  a Delinquent
Member  pursuant  to Section  5.5(b),  a  security  interest  in  and  to  its
Membership Interest in the Company, all pursuant to and in accordance with the
provisions of the Uniform Commercial Code of the State of Delaware, and agrees
that in the event  of any default in the  payment of such contributions  or in
the repayment of such loans  and all interest accrued thereon, the  Company or
the  Non-Delinquent Member, as  applicable, shall have  and are hereby granted
all the  rights and remedies of  a secured party under  the Uniform Commercial
Code of  the State of Delaware  with respect to the  security interest granted
herein.   Each Member  further  agrees to  execute and  deliver  to the  other
Members all such financing statements and other instruments as may be required
by  the Members  Committee or  the Non-Delinquent  Members, as  applicable, to
effect and  carry out the provisions of the immediately preceding sentence and
agrees  that this Agreement may serve as  the necessary security agreement and
financing statement.   The Company  shall register  on its books  the security
interests  given pursuant  to this Section  5.6.   The Members  agree that the
security  interests granted  under this  Section 5.6  shall be  subordinate to
security  interests granted to  Conoco Inc.  under the  construction financing
agreement referred to in Exhibit "H".

      5.7   Secured Party.  A secured  party of a Permitted Security  Interest
with respect  to any Member's Membership  Interest shall not as  the result of
the exercise of any of  its rights as a secured party become liable for any of
the obligations of such Member under this Agreement.


                                  ARTICLE VI

                                  TAX MATTERS
                                       

      6.1.1 Tax Matters Partner. The Members intend that  the Company shall be
taxed  as a  partnership  for federal,  state,  local and  foreign income  tax
purposes, and have agreed  to certain provisions  of this Agreement with  that
intention  in  mind.    The Members  agree  to  take  all reasonable  actions,
including the  amendment of  this Agreement  and the  execution of such  other
documents as  may be reasonably required  in order for the  Company to qualify
and receive partnership treatment for federal, state, local and foreign income
tax  purposes.  At such time, if ever, as final regulations are promulgated as
heretofore proposed  (61 F.R. Section  21989) under Section  7701 of the  Code
with respect  to classification  of an  entity as  a  partnership for  federal
income  tax  purposes,  the  Members  shall  elect  in  compliance  with  such
regulations that the Company be treated, for federal income tax purposes, as a
partnership and  take such other  actions as  may be  reasonably necessary  or
desirable  in connection  therewith.   The  Member from  which the  Manager is
selected  by the  Members Committee is  designated as the  Tax Matters Partner
("TMP"), as such term is defined in Section 6231(a)(7) of the Internal Revenue
Code of 1986, as amended,  ("Code").  In the event  of any change in the  TMP,
the Member  serving as  TMP at the  beginning of  a given  taxable year  shall
continue as TMP with respect to all matters concerning such year.  The TMP and
other  Members shall use  their best  efforts to comply  with responsibilities
outlined in this section and in Code Sections 6222 and 6233 and 6050K (and the
Treasury Regulations thereunder)  and in doing so shall incur  no liability to
any  other  Member.   Notwithstanding  the TMP's  obligation to  use  its best
efforts  in the  fulfillment  of its  responsibilities, the  TMP shall  not be
required to  incur  any expenses  for  the preparation  for,  or pursuance  of
administrative, or judicial proceedings, unless the Members  agree on a method
for sharing such expenses.

      6.1.2 Information  Request by TMP.   The  Members shall furnish  the TMP
within  two  weeks from  the  receipt of  the  request  with such  information
(including  information   specified  in   Code  Sections  6230(e)   on  Member
identification and 6050K for transfers of Membership Interests) as the TMP may
reasonably request to  permit it to provide the Internal  Revenue Service with
sufficient information for purposes of Code Sections 6223(c) and 650K.

      6.1.3 TMP Agreements with IRS.  

      6.1.3.1   The TMP  shall not agree  to any extension  of the  statute of
      limitations for  making assessments  on  behalf of  the Company  without
      first obtaining the  written consent of all Members.   The TMP shall not
      bind any other Member  to a settlement  agreement in tax audits  without
      obtaining the written concurrence of any such Member.

      6.1.3.2   Any other Member who  enters into a settlement  agreement with
      the  Secretary of the  Treasury with  respect to  any Company  items, as
      defined  in Code Section  6231(a)(3), shall notify  the other Members of
      the terms within ninety (90) days from the date of such settlement.

      6.1.4 Inconsistent Treatment of Company Item.  If  any Member intends to
file a  notice  of inconsistent  treatment under  Code  Section 6222(b),  such
Member  shall, prior  to the  filing of  such notice,  notify the  TMP of  the
(actual  or potential) inconsistency  of the Member's  intended treatment of a
Company item with the treatment  of that item by the Company.  Within one week
of receipt the TMP shall remit copies of such notification to other Members to
the  Company.  If an inconsistency notice is filed solely because a Member has
not received a Schedule K-1 in time  for filing of its income tax return,  the
TMP need not be notified.

      6.1.5 Communication  of Proceedings to  Members.   The TMP shall  to the
extent and  in the manner provided  by regulations issued pursuant  to Section
6223(g)  of  the Code,  keep all  Members informed  of all  administrative and
judicial proceedings for the adjustment at the Company level of Company items.

      6.1.6 Requests for  Administrative Adjustment.   No Member shall  file a
request  pursuant to  Code Section  6227 for  an administrative  adjustment of
Company items without first notifying all other Members.  If all other Members
agree with the requested adjustment, the  TMP shall file the request on behalf
of  the Company.  If unanimous consent is not obtained within thirty (30) days
from such notice, or within the period required to timely file the request for
administrative adjustment, if shorter, any Member, including the TMP, may file
a request for administrative adjustment on its own behalf.

      6.1.7 Judicial Proceedings.   Any  Member intending  to file  a petition
under Code Sections 6226, 6228,  or any other Code Section with respect to any
Company  item, or  other tax matters  involving the Company,  shall notify the
other  Members,  prior  to such  filing,  of  the nature  of  the contemplated
proceeding.  In  the case where the TMP  is the Member intending to  file such
petition, such notice  shall be given  within a reasonable  time to allow  the
other Members to participate in the choice of the forum for such petition.  If
the  Members do not  agree on the  appropriate forum, then the  forum shall be
decided  by majority vote.   Each Member shall have a  vote in accordance with
its  percentage interest  in the   Company  for the  year under  audit.   If a
majority cannot agree, the TMP shall choose the forum.  If a Member intends to
seek review of  any court decision rendered  as a result of such  a proceeding
such Member shall notify the other Members, prior to seeking such review.

6.2   Income Tax Compliance and Capital Accounts

      6.2.1 Tax Returns.  The TMP shall prepare and file all required federal,
state, and local partnership income tax returns, as well as all sales, use and
other  excise tax returns.   In preparing  such returns the  TMP shall use its
best efforts and in doing so shall incur no liability to any other Member with
regard to such returns.  Not less than thirty (30) days prior to the due  date
(including  extensions) the  TMP shall  submit to  each Member  a copy  of the
income tax returns and/or franchise tax returns as proposed for review.

      6.2.2 Fair Market Value Capital Accounts.   The TMP shall establish  and
maintain  fair market  value ("FMV")  capital accounts  and tax  basis capital
accounts for each Member.   Upon request, the TMP shall  submit to each Member
along with a copy of any proposed partnership income tax  return an accounting
of its respective FMV capital accounts as of the end of the tax return period.

      6.2.3 Information Request.  Each Member agrees to furnish to the TMP not
later  than sixty (60) days before the  return due date (including extensions)
such information relating to the operations conducted  under this Agreement as
may be required for the proper preparation of all such tax returns and capital
accounts.

6.3   Elections

      6.3.1 General Elections.  For both income tax return and capital account
purposes,  the  Company  shall  elect:    (a)  to  use the  maximum  allowable
accelerated tax method and the shortest permissible  tax life for depreciation
purposes,   (b)  the  accrual   method  of   accounting,  (c)  to   treat  all
organizational  costs of the  Company as deferred  expenses amortizable over a
sixty (60) month period pursuant to  Section 709(b) of the Code and comparable
provisions  of state law,  (d) to amortize start-up  expenditures over a sixty
(60)  month  period pursuant  to  Section 195(d)  of  the Code  and comparable
provisions of state law, and (e) to report income on a calendar year basis.

      6.3.2 Other Elections or  Consents.   In connection  with any  permitted
transfer of  a Membership Interest  in the Company  under Article IV,  the TMP
shall cause  the  Company, at  the  written request  of  a transferee  or  the
transferor, on behalf of the Company and at the time and manner provided under
Code Section 754 to adjust the  basis of Company property with the adjustments
provided  in Code Sections  734 for a  distribution of property  and 743 for a
transfer of a Membership Interest.  In case of a distribution of property, the
TMP shall adjust all tax  basis capital accounts.  In case of a transfer of an
interest in the Company, the  transferee shall, no later than sixty  (60) days
prior  to the  due  date of  the  Company tax  return  (including extensions),
cooperate with the  TMP in the filing of tax returns by providing the TMP with
all  reconciliations necessary to  reflect such  basis adjustments on  the tax
return.  Any election other  than those referred to above must  be approved by
the Members Committee.

6.4   Capital Contributions and FMV Capital Accounts

      6.4.1 Capital Contributions.   The respective  capital contributions  of
each  Member to  the Company shall  be (a)  any properties  contributed to the
Company (net  of liabilities that the Company  assumes or takes the properties
subject  to),  and  (b) all  amounts  paid  by  each Member  characterized  as
contributions to the Company or Company expenses borne and paid by such Member
on behalf of the Company.

      6.4.2 FMV Capital Accounts.  The FMV capital accounts shall be increased
and decreased as follows:

      (a)   The FMV capital accounts shall be increased by:  (i) the amount of
      money and  the fair  market value  of any  property contributed  by each
      Member, respectively, to the Company (net of  liabilities assumed by the
      Company  or to  which the  contributed property  is subject);  (ii) that
      Member's [Section 6.5.1] allocated share of Company income and gains, or
      items  thereof;  and,  (iii)  that   Member's  share  of  Code   Section
      705(a)(1)(B) items.

      (b)  The FMV capital accounts shall be decreased  by:  (i) the amount of
      money and the fair market  value of property distributed to each  Member
      (net of liabilities assumed by  such Member or to which the  property is
      subject); (ii) that  Member's [Section 6.5.1] allocated share of Company
      loss and deductions, or items thereof; and, (iii) that Member's share of
      Code Section 705(a)(2)(B) items and  Code Section 709 nondeductible  and
      nonamortizable items.

      (c)  "Fair market value"  when it applies to property contributed  by or
      distributed to a Member or other Company property shall be determined by
      the Members Committee.

6.5   Company Allocations

      6.5.1 FMV Capital Account Allocations.  Each item  of income, gain, loss
      or deduction shall be allocated to each Member as follows:

            (a)   Operating and  maintenance cost  shall be allocated  to each
            Member  in  accordance   with  its  respective   contribution,  or
            obligation to contribute, to such cost;

            (b)  Depreciation shall be allocated to  each Member in accordance
            with its contribution, or obligation to contribute, to the cost of
            the underlying asset;

            (c)     Loss  (or  simulated   loss)  upon  the   sale,  exchange,
            distribution,  abandonment  or  other  disposition  of depreciable
            property, shall be allocated to the  Members in the ratio of their
            respective FMV  capital account adjusted basis  in the depreciable
            property;

            (d)   Gain  (or   simulated   gain)  upon   the  sale,   exchange,
            distribution,  or other  disposition of depreciable  or depletable
            property shall be allocated to the Members so that the FMV capital
            account balances  of the Members  will most closely  reflect their
            respective percentage or fractional interests under the Agreement;

            (e)   Costs or expenses  of any other  kind shall be  allocated to
            each  Member in  accordance with  its respective  contribution, or
            obligation to contribute, to such costs or expenses; and,

            (f)   Any other income item  shall be allocated to  the Members in
            accordance  with the manner  in which  such income is  realized by
            each Member.

6.5.2 Tax Returns and Tax Basis Capital Account Allocation.

            (a)  Unless otherwise expressly provided herein the allocations of
            Company  items of income,  gain, loss or  deduction for tax return
            and tax basis capital account purposes shall follow the principles
            of allocation under Section 6.5.1.  However, the Company's gain or
            loss on the taxable disposition of any  Company property in excess
            of the gain  or loss under Section 6.5.1, if  any, is allocated to
            the  contributing  Member to  the  extent  of such  Member's  pre-
            contribution gain or loss;

            (b)  Depreciation shall be allocated to  each Member in accordance
            with its contribution to the adjusted tax basis of the depreciable
            asset;

            (c)  Any recapture of depreciation  or any other item of deduction
            or  credit shall, to  the extent possible,  be allocated among the
            Members  in accordance with  their sharing of  the depreciation or
            other item or deduction or credit which is recaptured;

            (d)   For  Company properties  with  values different  from  their
            adjusted tax bases, the  Members intend that allocations described
            in  this  Section  6.5.2   constitute  a  "reasonable  method"  of
            allocating gain or loss  under Treasury Regulations Section 1.704-
            3(a)(1).

6.6   Termination and Liquidating Distributions

      6.6.1 Termination.  Termination shall occur on the earlier of the events
      described in Code Sections 708(b)(1)(B) or 708 (b)(1)(A).

            (a)     Termination  Under   Code  Section  708(b)(1)(B).     Upon
            termination  under Code  Section 708(b)(1)(B),  each Member's  FMV
            capital  account  shall  be  adjusted  as   provided  for  in  the
            regulations, Section 1.704-1(b)(2)(iv)(1), and Section 6.6.3.  The
            distributions provided  for in Sections 6.6.2  through 6.6.4 shall
            be deemed to have occurred,  with the Company cash and  properties
            deemed contributed to  a new limited liability  company, the terms
            of which are identical to those contained in this Agreement.
  
            (b)     Termination  Under   Code  Section  708(b)(1)(A).     Upon
            termination under Code Section 708(b)(1)(A), the business shall be
            wound-up and concluded, and the assets shall be distributed to the
            Members as described below  by the end of such calendar  year (or,
            if  later,  within  ninety  (90)  days  after  the  date  of  such
            termination).  The assets shall  be valued and distributed to  the
            creditors of the Company, if any,  and to the Members in the order
            provided in Sections 6.6.2 through 6.6.4.

      6.6.2 Section 708(b)(1)(A) Termination.  In the event  of a Code Section
      708(b)(1)(A) termination,  the assets shall  be valued, and  the Company
      shall first comply with Section 18-804(a)(1) of the Act, and second, all
      cash  representing  unexpended  contributions  by any  Member  shall  be
      returned to the contributor.

      6.6.3 Balancing.  Third, the FMV  capital accounts of the Members  shall
      be determined  under this Section 6.6.3.  The TMP shall take the actions
      specified under  this Section 6.6.3 in  order to cause the  ratio of the
      Members'  FMV capital accounts  to reflect as  closely as possible their
      Sharing Ratios under the Agreement.  The ratio of a Member's FMV capital
      account  is represented by  a fraction,  the numerator  of which  is the
      Member's FMV capital account balance and the denominator of which is the
      sum of  all Members' FMV  capital account balances.   This is  hereafter
      referred  to  as  "balancing  of the  FMV  capital  accounts",  and when
      completed, the FMV capital accounts of  the Members shall be referred to
      as being  "balanced".  The manner  in which the FMV  capital accounts of
      the  Members are  to  be balanced  under  this  Section 6.6.3  shall  be
      determined as follows:

            (a)   The fair  market value  of all  Company properties shall  be
            determined and the gain or loss for each property which would have
            resulted if a sale thereof at such fair  market value had occurred
            shall  be  allocated   in  accordance  with  Section  6.5.1.    If
            thereafter any Member has a  negative FMV capital account balance,
            that is, a  balance less than zero, in accordance with Treas. Reg.
            Section   1.704-1(b)(2)(ii)(b)(3)  such  Member  is  obligated  to
            contribute  an amount  of cash  to the  Company to  facilitate the
            balancing of the FMV capital accounts.  If after these adjustments
            the  FMV capital accounts are not balanced, Article 6.6.3(b) shall
            apply; or

            (b)  If all the Members consent, any cash or an undivided interest
            in certain selected properties shall be distributed to one or more
            Members as necessary for the purpose of  balancing the FMV capital
            accounts;

            (c)   Unless (b) above applies, an  undivided interest in each and
            every  property shall  be distributed  to one  or more  Members in
            accordance with the ratios of their FMV capital accounts;

            (d)  If a property is to be valued under (a) above or  distributed
            pursuant  to  (b) or  (c)  above,  the fair  market  value of  the
            property shall be agreed to by the  Members.  In the event all  of
            the Members  do not reach agreement as to the fair market value of
            property, the TMP shall  cause a nationally recognized independent
            engineering firm to prepare an evaluation of  fair market value of
            such property.

      6.6.4 Final Distribution.  Fourth, after the FMV capital accounts of the
      Members have been adjusted, pursuant  to Section 6.6.3 above, all  other
      or remaining property  and interest then  held by the  Company shall  be
      distributed to the Members in accordance with their positive FMV capital
      account balances.

6.7   Transfers, Indemnification, and Correspondence.

      6.7.1 Transfers of Company Interests.  Transfers of Membership Interests
      shall  be  governed  by  the  Agreement.    A  Member  transferring  its
      Membership Interest,  or  any part  thereof,  shall  notify the  TMP  in
      writing within two weeks of such transfer.

      6.7.2 Indemnification.    This  Agreement   does  not  provide  for  any
      indemnification provisions to protect Members against any harm caused by
      a Code  Section 708(b)(1)(B) termination.   However,  the Members  agree
      that if  any  of them  makes  a sale  or  assignment of  its  Membership
      Interest  under  this  Agreement,  such  sale  or  assignment  shall  be
      structured, if  reasonably possible,  to avoid  causing an  Code Section
      708(b)(1)(B) termination.

      6.7.3 Correspondence.   All correspondence  relating to  the preparation
      and  filing of  the Company's  income tax  returns and  capital accounts
      shall be forwarded to the TMP.

      6.8   No Interest.  No Member  shall be entitled to be paid  interest in
respect of either its  capital account or any contributions made by  it to the
Company.

      6.9   Return of  Capital.  Except  as set forth in  Section 6.6.2 hereof
and notwithstanding anything  in this Agreement to the  contrary, no Member is
entitled to  a return on any cash  or property that it  has contributed to the
capital  of  the Company,  but shall  look  solely to  distributions  from the
Company.  No unrepaid capital contribution shall be deemed or considered to be
a liability of the Company or  of any Member.  No Member shall be  required to
contribute any cash or property to the Company to enable the Company to return
any Member's capital contribution.


                                  ARTICLE VII

                            ADMINISTRATIVE MATTERS

      7.1   Books and Records.  The books and records of the  Company shall be
kept, at the expense of the Company, by  the Member from which the Manager  is
appointed in accordance with this  Agreement, following  that Member's  normal
accounting  systems,  procedures  and  practices,  consistent  with  generally
accepted accounting principles, on a calendar year basis for all purposes, and
shall  reflect all Company  transactions and  be appropriate and  adequate for
recording and reporting the financial condition of the Company.  Within forty-
five days following the end of each calendar quarter, the  Manager shall cause
to  be prepared  and submitted  to the  Members Committee  and each  Member an
unaudited balance sheet and an unaudited income statement of the Company and a
comparison to budgets in respect of such calendar quarter.  In addition, on or
before March 31 (or as soon thereafter as may be practicable) of each year the
Manager  shall  cause to  be  delivered  to each  Member,  in  respect of  the
immediately  preceding  year,  an audited  balance  sheet,  an audited  income
statement, an audited annual statement of changes in financial position of the
Company together with a report by the Company's Independent Accountants to the
effect  that such financial  statements have been  prepared in accordance with
generally  accepted accounting  principles  and present  fairly the  Company's
financial position, results of operation,  and changes in financial  position,
and a report indicating each Member's share for federal income tax purposes of
the  Company income, gain,  credits, losses, and  deductions prepared, in each
case, by  the Company's Independent Accountants.   A copy of  each Company tax
return required to be filed with any governmental authority shall be delivered
to each Member at least ten days before such return is filed.

      7.2   Inspection.  Each Member, at its sole cost and expense, shall have
the right  to inspect, copy,  and audit the books  and records of  the Company
during reasonable business  hours at  the principal place  of business of  the
Company.     No  Person  other   than  a   Member  (or  its   duly  authorized
representative) and the Company's Independent Accountants shall have any right
to inspect  the books and records  of the Company for  any purpose whatsoever.
Each Person that inspects the books and records of the  Company shall maintain
the confidentiality of the information  received pursuant to or in  connection
with such inspection.

      7.3   Bank  Accounts; Investments.   All funds  of the Company  shall be
deposited in  its name in  an account or  accounts maintained  in one or  more
national  or state bank or banks  designated from time to  time by the Members
Committee.  The funds of the Company shall not be commingled with the funds of
any other Person.  Checks shall be  drawn upon the Company account or accounts
only  for the purposes  of the Company  and shall be  signed by such signatory
party  or parties as may be designated  by the Members Committee.  The Manager
shall have the obligation from time to time to  deposit Company funds that (i)
are not required  for the operation  of the business  of the Company  and (ii)
should  not, in  the Manager's  opinion,  be used  to repay  Company debt,  in
interest bearing  bank  accounts or  to  purchase commercial  paper,  treasury
bills,  or  other  high  grade  short  term  instruments  following guidelines
approved by the Members Committee.

      7.4   Monthly Progress Reports.   At least once a month, the Manager, at
Company expense, shall furnish to the  Members a progress report regarding the
operations of the Company. 


                                 ARTICLE VIII

                    MANAGEMENT; MEMBERS COMMITTEE; MANAGER;
                       STANDARD OF CARE; INDEMNIFICATION

      8.1   Management.    (a)  The  management and  control  of  the  Company
business shall  be vested in the  Members, who shall exercise  such management
and control through and by virtue of their selection of  the Members Committee
in accordance  with the succeeding  provisions of this Article  VIII and their
participation in the making of the decisions accorded to them pursuant to this
Agreement.

      (b)   The Members shall be entitled to delegate any powers and authority
required for the management of the Company to the Members Committee, save that
the  Members  reserve  the  following  powers  and  authority  exclusively  to
themselves, namely:

      (i)   to amend the purposes of the Company,  as set out  in Section 3.2;

      (ii)  to liquidate or otherwise dissolve the Company;

      (iii) to approve the merger or consolidation of the Company with or into
            an "other business entity," as such term is defined in  18-209(a)
            of the Act, or the sale, exchange, or other disposition of all, or
            substantially  all of the  Company's assets  which is to  occur as
            part of a single transaction or plan;

      (iv)  to designate  from  time   to   time  the  Company's   Independent
            Accountants; and

      (v)   to amend this Agreement.

      8.2   Members Committee.

      (a)   The  Members  Committee  (herein   referred  to  as  the  "Members
Committee") shall  be responsible for the making  of decisions with respect to
the  Company business  that are  not accorded  to the  Members or  the Manager
pursuant to this Agreement.

      (b)   Without  limiting the generality of  paragraph (a) of this Section
and subject always to the provisions of Section 8.1(b),  the Members Committee
shall have the power to  delegate to the Manager of the Company any powers and
authority necessary  for  the day-to-day  operation  of  the business  of  the
Company, except that the Members  Committee reserves the following powers  and
authority exclusively to itself, namely:

      (i)      to  set  the  overall  policy  and  vision  of the  Company  in
               accordance with the purposes set out in Section 3.2;

      (ii)     to  recommend  to  the  annual   meeting  of  the  Members  the
               distribution   policy  of   the  Company   and  the   level  of
               distribution to be declared;

      (iii)    to elect or appoint the Manager;

      (iv)     to approve capital expenditures of the Company  in  such amount
               as the Members may from time to time determine;

      (v)      to  approve the  business and  strategic plans  and the  annual
               operating plans of the Company;

      (vi)     to  recommend approval  by the  Members of  any of  the matters
               referred to in Section 8.1(b);

      (vii)    to  approve from  time to  time the  location of  the Company's
               principal executive office;

      (viii)   to determine the banking policy  of the Company and further  in
               that regard:   to grant financial  authorization (including the
               opening  and   closing  of  bank  accounts   and  to  designate
               signatories for such accounts)  to the Manager; to  approve all
               borrowings  by  the  Company  of  sums  of  money   within  the
               limitations  regarding amount as  the Members may  from time to
               time  determine,  from banks,  other lending  institutions, the
               Members  or Affiliates  of the  Members, on  such terms  as the
               Members   Committee  deems  appropriate,   and,  in  connection
               therewith,  to  hypothecate,   encumber,  and  grant   security
               interests in the assets of  the Company to secure repayment  of
               the  borrowed sums.   No debt shall  be contracted or liability
               incurred by  or on behalf  of the Company except  to the extent
               permitted under the Act by the Manager  or authorized agents of
               the Company  expressly authorized  by the Members  Committee to
               contract such debt or incur such liability;

      (ix)     to  approve the purchase  of liability  and other  insurance to
               protect the Company's property and business;

      (x)      to establish guidelines for the  Manager in connection with the
               temporary investment of Company funds;

      (xi)     to approve  the  execution on  behalf  of  the Company  of  all
               instruments and documents with a value in excess of such amount
               as  the Members  may from  time to  time determine,  including,
               without limitation:  checks; drafts; notes and other negotiable
               instruments; mortgages or deeds of  trust; security agreements;
               financing statements; documents  providing for the acquisition,
               mortgage or disposition of the Company's property; assignments;
               bills   of  sale;  leases;  partnership  agreements;  operating
               agreements  of other  limited  liability companies;  agreements
               between  the  Company  and  either  of  the  Members  or  their
               Affiliates; and any  other instruments or  documents necessary,
               in the opinion of the Members Committee to the  business of the
               Company;

      (xii)    to assess the performance of the Manager of the Company;

      (xiii)   to  approve  the  commencement   or  settlement  of  litigation
               directly or  indirectly involving the Company,  where the claim
               or  potential liability of  the Company  or the amount  of such
               settlement is in  excess of such amount as the Members may from
               time to time determine;

      (xiv)    to determine  the accounting  policies  of the  Company and  to
               recommend  to  the Members  the  appointment  of the  Company's
               Independent Accountants;

      (xv)     to  approve the  ethics,  safety and  health and  environmental
               policies of the Company; and

      (xvi)    to  review and  approve the  terms of  any public  announcement
               proposed to be  made by the Company, as determined from time to
               time by the Members Committee.

      (c)   The Members Committee shall be comprised of six individuals, three
of  whom shall be  named by each  Member (individually  a "Representative" and
collectively "Representatives").   These  Representative(s) may be  changed at
any time by the Members appointing such Representative(s) by written notice to
the other Member.

      (d)   Meetings  of the  Members Committee  may be  held at  such regular
times as may be  specified by the Members  Committee and, in addition, may  be
called by  any Representative by giving at least ten days prior notice thereof
to  each of the  other Representatives.   Notice of  each meeting  shall be in
writing and shall state the date, time,  and place at which such meeting is to
be held and the purposes for which such meeting is  called.  Prior notice of a
meeting need not be given, however, if such notice is waived in writing by all
of the Representatives or if  the action in question is taken  pursuant to the
provisions  of the second succeeding sentence.  In addition, the attendance in
person  or by  a Person  having the  written proxy  of a  Representative  at a
meeting shall constitute a waiver of  notice of such meeting, except where the
Representative attends the meeting for the express purpose of objecting to the
transaction of any  business on the  ground that the  meeting is not  lawfully
called  or convened.)   Any  action  required or  permitted to  be taken  at a
meeting  of the Members  Committee may be  taken (i)  by means of  a telephone
conference (notice of which shall be given to each of  the Representatives) in
which  all Representatives  participating in  the meeting  in person  or by  a
Person having the written proxy  and constituting a quorum can hear  and speak
to each  other (with the action  taken during such telephone  conference to be
reduced to writing and filed in the records of the Members Committee), or (ii)
by  means of  one Representative  submitting to  the other  Representatives in
accordance with the provisions of Section 14.3 a statement of the matter to be
voted   on,  the   purposes  thereof,   and  the   period  within   which  the
Representatives  must respond either in the  affirmative or in the negative to
the matter  in respect of which  the vote is requested  (which response period
shall not be less than seven business  days nor more than twenty business days
from  the  date on  which the  Representative in  question  is deemed  to have
received such request pursuant to Section 14.3).  All action taken pursuant to
the  immediately preceding sentence  shall be deemed for  all purposes to have
been taken at a meeting of the Members Committee.  The Members Committee shall
conduct its proceedings in  accordance with such rules as it  may from time to
time establish and shall keep appropriate records of the action taken by it.

      (e)   At  all  meetings   of  the  Members   Committee,  at  least   one
Representative  representing each  Member shall  constitute a  quorum for  the
transaction of business, and subject to this Section 8.2, the unanimous act of
all of the Member Representatives present at  any meeting at which there is  a
quorum  shall be  the act  of the  Members Committee, except  as set  forth in
Section  8.2(f).   If a  quorum shall  not be  present at  any meeting  of the
Members  Committee, the meeting  may be  rescheduled by any  Representative by
giving seven days prior notice thereof to each of the other Representatives.  

      (f)   Notwithstanding any  provision of this Agreement  to the contrary:
(i) neither a Member nor a Representative  appointed by any Member that is the
subject of  a vote with respect to  the exercise of remedies  relating to such
Member's delinquency  or default under this  Agreement, in the case  of a vote
with  respect to  such matters;  (ii)  neither a  Member nor  a Representative
appointed by any Member that  attempts to effect a Disposition of  an interest
or  right, or any  part thereof, in  or in respect  of the Company  in willful
contravention  of Article IV, or  in the case of any  vote with respect to any
matter whatsoever subsequent to such attempted Disposition; or (iii) neither a
Delinquent  Member nor the Representative  appointed by any Delinquent Member,
in the  case of any vote occurring during the  period in which such Delinquent
Member is  a Delinquent  Member; will  be entitled  to vote  on  the issue  in
question, and  such Representative shall not  be counted for voting  or quorum
purposes  in respect of the vote in  question or the Members Committee meeting
at  which the vote  is taken.   Instead, a  quorum in  respect of the  vote in
question shall be comprised of  one or more of all Representatives  other than
those  that are  not  entitled to  vote on  such issue,  and the  decisions in
respect  of  such   issue  shall  be  made  by  the   unanimous  vote  of  all
Representatives present that are entitled to vote on such issue.

      8.3   Manager.  The Manager  (who shall be an employee of a Member or of
an Affiliate  of  a Member)  shall be  appointed by,  and shall  serve at  the
pleasure of,  the Members Committee, subject  to the direction  of the Members
Committee, and shall be responsible for the general supervision and management
of  the  business,   affairs,  and  property  of  the  Company   and  for  the
implementation of the decisions of  the Members Committee, and shall have,  as
may be delegated  by the Members Committee, the authority  to conduct the day-
to-day affairs  of the Company.   Without limitation of the  generality of the
preceding provisions of this Section, the  Manager shall have (subject to  the
limitations of  Sections 8.1  and 8.2  and to  budgetary limitations  and such
other  limitations  as  may  be  imposed from  time  to  time  by  the Members
Committee) the authority, the right, and the power, on behalf  of the Company:
       

      (a)   to enter into,  make, and perform  all contracts, agreements,  and
other  undertakings binding the  Company as may  be necessary, appropriate, or
advisable  in furtherance of  the purposes of  the Company as  the Manager may
determine in his or her discretion;

      (b)   to  open, maintain,  and  close bank  accounts,  to designate  and
change  signatories on such accounts, and to  draw checks and other orders for
the payment of monies;

      (c)   to maintain the assets of the Company in good order and repair;

      (d)   to collect all sums due the Company;

      (e)   to prepare  and  file all  Company  tax returns  and to  make  all
elections  for the Company  thereunder in accordance  with the instructions of
the TMP and the Members Committee;

      (f)   to the extent that funds of the Company are available therefor, to
pay as  they become due all  debts and obligations of  the Company (including,
without limitation, the Purchase Note); and

      (g)   within any limitations as may be imposed from time to  time by the
Members Committee,  to take any  and all other  action that may  be necessary,
appropriate, or advisable in furtherance of the purposes of the Company.

      In addition,  the  Company shall  reimburse the  Manager,  on a  monthly
basis,   for   all  reasonable   out-of-pocket  transportation,   lodging  and
entertainment expenses,  incurred  in  connection with  the  business  of  the
Company, consistent with the normal reimbursement policies of the Member which
is providing the individual to be Manager of the Company.   

      8.4   Standard of Care.  In  the performance of their respective  duties
under this Agreement, the Representatives and the Manager shall use reasonable
efforts  to conduct  the business of  the Company  in a  good and businesslike
manner   and  in   accordance   with  good   practice  within   the  industry.
Notwithstanding  any provision  of this  Agreement  to the  contrary, however,
neither any Representative nor the Manager shall be held liable or responsible
to  any Member  or to  the Company  for any  losses sustained,  or liabilities
incurred,  in  connection  with,  or  attributable  to,  errors  in  judgment,
negligence, or other fault of such individual, except that which  is caused by
such Person's bad faith or willful misconduct.

      8.5   Indemnification  of  the Representatives  and  the  Manager.   The
Company   hereby  agrees   to  defend,   indemnify  and   hold  harmless   the
Representatives and the Manager from and  against any and all claims, damages,
liabilities, costs (including, without limitation, the costs of litigation and
reasonable  attorneys' fees), damages,  and causes  of action arising  out of,
resulting  from, or  attributable to  the Representatives'  and the  Manager's
management of  the Company affairs, except  where the claim at  issue is based
upon the bad faith or willful  misconduct of the Representative in question or
the  Manager.    The  indemnification rights  herein  contained  shall  be (i)
cumulative of, and in addition to, any and all rights, remedies, and recourses
to which the Representatives  and the Manager shall  be entitled at law  or in
equity,  and  (ii)  shall  only  be  for  the  benefit  of  the  Company,  the
Representatives,  and the  Manager, to  the exclusion  of all  other purported
third party beneficiaries. 


                                  ARTICLE IX

                             VOLUNTARY WITHDRAWAL


      9.1   Resignation by Member.  

      Each of the Members acknowledges:

      (i)      the  unique nature of  the business the  Company will engage in
               and the expertise and skills each of the Members  brings to the
               business and management of the Company;

      (ii)     the  commitment of the  Company to fully  perform the terms and
               conditions of the Drilling Contract and the Purchase Note; and

      (iii)    the need for the Company to enter into the Purchase Note and to
               assure any lenders of the Company's  commitment to the business
               of the Company.

In furtherance of those objectives, the Members agree that no Member will have
the right to, and each Member agrees that it will not, resign or withdraw from
the  Company prior  to the  expiration of  the Base  Term.   In the  event any
Member, prior to the expiration of the Base Term, resigns from the Company, or
otherwise takes any action having the effect of a withdrawal or termination of
its participation as  a Member of the Company (a  "Wrongful Withdrawal"), such
withdrawal shall be null and void and such Member shall remain fully liable as
a Member hereunder.  In the event the Company is required  by law to recognize
a Wrongful Withdrawal, the withdrawing Member will:

      (w)      pay to  the Company the  withdrawing Member's Sharing  Ratio of
               the Company's then known, outstanding  and  due obligations and
               liabilities,  including amounts  then due  and owing  under the
               Purchase Note, at the time of such Wrongful Withdrawal; 

      (x)      as they thereafter become known, pay to the Company its Sharing
               Ratio of the Company's liabilities that arose, or resulted from
               activities of the Company, prior to the Wrongful Withdrawal; 

      (y)      forfeit its  Membership Interest  in the  Company to  the other
               Members on a pro-rata basis  based on their respective  Sharing
               Ratios;  and

      (z)      be  liable  for all  damages  attributable  to the  withdrawing
               Member's breach of this Agreement.

Pursuant  to Section 18-603 of the  Act, the Members agree  that no Member may
resign  from  the Company  prior  to  the expiration  of  the  Base Term,  and
thereafter any  Member may  resign from  the Company  in accordance  with this
Agreement. 

      9.2   Wrongful Withdrawal. If a  Wrongful Withdrawal occurs, then within
a reasonable  time after  the expiration  of the Base  Term, there  will be  a
winding up of the Company and a  distribution of the assets in accordance with
Section 11.2 of this Agreement, provided that,  (i) the non-withdrawing Member
will  act as the  liquidating trustee under  Section 11.2,  (ii) no adjustment
will be made to the capital account of the Member who wrongfully withdrew, and
(iii) the wrongfully withdrawing Member's  Membership Interest in the  Company
to be forfeited  to the other  Members will be  valued to the  non-withdrawing
Member at the amount of such withdrawing Member's contributions to the Company
pursuant to Sections 5.1 and 5.2 hereof.  


                                   ARTICLE X

                            [INTENTIONALLY DELETED]



                                  ARTICLE XI

                    DISSOLUTION; RECONSTITUTION; WINDING UP


      11.1  Events  Deemed to Cause  Dissolution.  Unless  the business of the
Company is  continued either by the consent of all remaining Members within 90
days  following the occurrence  of any such  event or  pursuant to a  right to
continue  provided under this  Agreement, the Company  shall be dissolved upon
the first to occur of the following:

          (a)     The expiration of the term provided in Section 3.4;

          (b)     The resignation  of a Member  upon 365  days prior  written
                  notice  given  after  the  expiration  of  the  Base  Term,
                  provided however,  the Company  shall not  be dissolved  if
                  the  Non-Resigning  Member  exercises   its  rights   under
                  Section 4.8; 

          (c)     the Bankruptcy of a Member; 

          (d)     The sale of all or substantially  all of the assets  of the
                  Company; 

          (e)     The unanimous  vote of the Members to dissolve the Company;

          (f)     Unless the Members otherwise agree in writing, the  failure
                  of  one or more  of the  events set out in  Section 15.1 to
                  occur on or before November 10, 1996; 

          (g)     By  order of a court of competent  jurisdiction pursuant to
                  Section 18-802  of the  Act, at such  time as specified  in
                  such order; or

          (h)     Upon the  dissolution of either Member  or any  other event
                  that terminates the membership of a Member in the Company.

      or otherwise  as provided  in Section  9.1  with respect  to a  Wrongful
      Withdrawal.  Subject  to the provisions of  Section 9.1 with  respect to
      Wrongful  Withdrawal, dissolution of  the Company shall  be effective on
      the  day on which the event occurs  giving rise to such dissolution, but
      the Company  shall not terminate  until the assets  of the  Company have
      been distributed as provided in Section 11.2.

      11.2  Distribution of Assets.  If  the Company is dissolved pursuant  to
this  Article  XI,  an  accounting of  the  Company  assets,  liabilities, and
operations  through the last day of the  month in which the dissolution occurs
shall be made by the Company's Independent Accountants, and the affairs of the
Company shall be wound up  and terminated.  The Members Committee  shall serve
as the liquidating  trustee.  The liquidating trustee shall be responsible for
winding up and terminating the affairs  of the Company and shall determine all
matters   in  connection   therewith  (including,   without  limitation,   the
arrangements  to be made with creditors, whether  and to what extent and under
what  terms of assets of the Company are to  be sold or distributed in kind to
the  Members,   and,  after   consultation  with  the   Company's  Independent
Accountants,  the amount  or necessity  of cash  reserves to  cover contingent
liabilities) as the liquidating trustee  deems advisable and proper; provided,
however, that  all  decisions of  the  liquidating trustee  shall be  made  in
accordance  with the  fiduciary duty owed  by the  liquidating trustee  to the
Company and to each of the Members.

      All  assets remaining after  the payment  (or provision for  payment) of
Company obligations to third  parties shall be distributed to the  Members (i)
first, in such amounts and proportions as may be necessary to effect and carry
out the  provisions of Sections 5.5(b)(iv),  14.1 and 14.12,   (ii) second, in
such amounts and  proportions as may be  necessary to cause the  ratios of the
Members'  respective capital accounts  to be equal  to the Members' respective
Sharing Ratios, and (iii) third, in the proportion of the Members'  respective
Sharing Ratios then in effect.

      The  distribution (if any) to the Members  of an interest in the Company
assets may be  subject to such liens,  encumbrances, and restrictions,  and to
such  leases,  contracts, and  agreements as  in effect  on  the date  of such
distribution.

      11.3  Termination.   After all  of the assets  of the Company  have been
distributed, the  Company shall terminate, and  the Members shall  (i) cause a
certificate of cancellation to  be filed with the Delaware Secretary of State,
and (ii)  file appropriate  documentation reflecting  such termination  in all
other jurisdictions in which the Company may be qualified to do business.


                                  ARTICLE XII

                            [INTENTIONALLY DELETED]


                                 ARTICLE XIII

                                   INSURANCE


      13.1  Insurance  Coverage.    The  Company  shall  carry  the  following
insurance  or  such  other  insurance  as  the   Members  Committee  may  deem
appropriate (to the extent in each case that same is  obtainable on reasonably
commercial terms) for the protection of the Company and the Members:

           (a)     Insurance which shall  comply with all applicable  worker's
      compensation and  occupational disease  laws and  which shall  cover all
      employees of the Company  engaged in operations under this Agreement; if
      applicable, such  insurance shall include coverage for  claims under the
      United States Longshoremen's and Harbor Worker's Act;

           (b)     Employer's liability  insurance with  a limit  of not  less
      than $500,000  per occurrence , including  maritime employer's liability
      coverage with respect to the  Jones Act, and general maritime  liability
      (if  not covered by  the protection & indemnity  coverage referred to in
      Section 13.1(f) below);

           (c)     Comprehensive general liability insurance  with a  combined
      single limit of not less than $1,000,000 per occurrence;

           (d)     Automobile  liability  insurance  with  a  combined  single
      limit of not less than $1,000,000 per occurrence;

           (e)     Marine "all  risk" hull and  machinery insurance (including
      war risks,  confiscation, nationalization and deprivation   coverage for
      operations  outside the United  States of America) to  the full value of
      the Drillship;

           (f)     Marine protection  and indemnity  insurance, or  equivalent
      coverage,  including war  risk  protection and  indemnity insurance  for
      operations outside the  United States of America,  to the full value  of
      the Drillship;

           (g)     Excess liability insurance  (over the insurances set  forth
      in subparagraphs  (b), (c), (d) and  (f) above) with limits  of not less
      than $50,000,000 per occurrence;

           (h)     Contingent Operators  Extra Expense  Energy Exploration and
      Development  (well control  and  blowout) insurance  including costs  to
      regain control of a well including underground blowout; costs to restore
      or redrill a  well as a result  of a blowout, crater, or  fire; costs to
      remove,  clean up,  or  contain pollution  and contaminating  substances
      emanating  from a well;  legal liability costs  for bodily injury and/or
      loss  of  life, damage  to,  or  loss  to  use  of  property  caused  by
      contaminating substances  from  a well;  with limits  of  not less  than
      $50,000,000; and

           (i)     Such  other insurance  as the  Members Committee  may  deem
      necessary,  appropriate, or advisable in furtherance  of the purposes of
      the Company.

      13.2  Certain  Requirements.   All  insurance  shall  be placed  through
underwriters  and/or  insurance  companies  which are  financially  sound  and
responsible, and  licensed  to do  business in  all  jurisdictions where  such
licensing is required.  Each policy of insurance [except that policy  referred
to in Section 13.1(a)] shall,  to the extent that the Members  Committee deems
same  practicable, either on its face or  by appropriate endorsement, (i) name
the Company as a named insured and each Member as an additional named assured,
(ii) provide for  reasonable deductibles acceptable to the  Members Committee,
(iii) provide  that it  shall  not be  cancelled or  amended  or its  coverage
reduced except upon thirty days prior notice to the Company (seven (7) days in
the  case of  war risk  coverages),  and (iv)  contain  waiver of  subrogation
provisions  pursuant  to  which each  underwriter  and/or  insurer waives  all
express and implies rights of subrogation against the Company and each Member.

      13.3  The types, limits and terms of insurance coverages set out in this
Article may be modified as deemed appropriate by the Members Committee.


                                  ARTICLE XIV

                                 MISCELLANEOUS


      14.1  Offset.   In the  event  that any  sum is  payable  to any  Member
pursuant to  this Agreement, any  amounts owed by  said Member to  the Company
shall be deducted from said sum before payment to said Member.

      14.2  Choice of Law; Submission  to Jurisdiction.  This Agreement  shall
be subject to and governed by the laws of the State of Delaware, excluding any
conflicts-of-law  rule or principle  that might  refer to the  construction or
interpretation of  this Agreement to the  laws of another state.   Each Member
hereby submits  to the jurisdiction  of the  state and federal  courts in  the
State of Delaware and to venue in Wilmington, New Castle County, Delaware.

      14.3  Notices.   All  notices or  requests or  consents provided  for or
permitted  to be given pursuant to this Agreement  must be in writing and must
be given by depositing same in the United States mail, addressed to the Person
to  be notified,  postpaid, and  registered or  certified with  return receipt
requested or by delivering such notice in person to such party.  Notices given
or served pursuant hereto shall  be effective upon receipt by the Person to be
notified.  All notices  to be sent to the Members shall be  sent to or made at
the  addresses given under  the respective parties'  signatures below, or such
other addresses  as such  parties may  stipulate to the  other parties  in the
manner provided in this Section 14.3.

      14.4  Entire Agreement.  This Agreement constitutes the entire agreement
of the Members relating to the matters contained herein, superseding all prior
contracts or agreements, whether oral or written.

      14.5  Effect of  Waiver or Consent.   No  waiver or consent,  express or
implied, by  any Member to or  of any breach  or default by any  Person in the
performance by  such Person of  its obligations hereunder  shall be  deemed or
construed to be a consent  or waiver to or of  any other breach or default  in
the  performance by such Person of  the same or any  other obligations of such
Person  hereunder.  Failure on the part of a  Member to complain of any act of
any Person or to declare any Person  in default, irrespective of how long such
failure continues, shall not constitute a waiver by such Member  of its rights
hereunder until the applicable statute of limitation period has run.

      14.6  Amendment  or  Modification.   This  Agreement may  be  amended or
modified from  time to  time only by  the unanimous vote  of all  the Members.
Each such  instrument shall be reduced  to writing and shall  be designated on
its face an "Amendment" or an "Addendum" to this Agreement.

      14.7  Binding Effect;  Joinder of  Additional Parties.   Subject  to the
restrictions on Dispositions set forth herein, this Agreement shall be binding
upon  and shall  inure to  the  benefit of  the Members  and their  respective
successors and assigns.

      14.8  Counterparts.   This Agreement  may be  executed in any  number of
counterparts with the same effect  as if all signatory parties had  signed the
same  document.    All  counterparts shall  be  construed  together  and shall
constitute one and the same instrument.

      14.9  Severability.   It is  the express intention  of the Members that,
except  to the  extent a  provision of  this Agreement  expressly incorporates
federal income tax rules by  reference to the Code or is  expressly prohibited
or ineffective under the Act, this Agreement  shall govern the relations among
the  Members in their capacities as such.   If any provision of this Agreement
or the application thereof to any Member or circumstance shall be held invalid
or unenforceable to any extent, (a) such provision shall be ineffective to the
extent, and only to  the extent, of such  unenforceability or prohibition  and
shall be enforced to the  extent permitted by law;  (b)  such unenforceability
or  prohibition   in  any   jurisdiction  shall   not  invalidate  or   render
unenforceable  such  provision  as  applied   (i)  to  any  other  Member   or
circumstance or (ii) in any other jurisdiction;  and (c) such unenforceability
or  prohibition shall  not affect  or invalidate  any other provision  of this
Agreement.   To the extent  any provision of  this Agreement is  prohibited or
ineffective under the Act,  this Agreement shall be considered amended  to the
least degree possible in order to make this Agreement effective under the Act.
In the event the Act  is subsequently amended or interpreted in such  a way as
to make  valid any provision of this Agreement that was formerly invalid, such
provision  shall be  considered to be  valid from  the effective  date of such
interpretation or amendment.  To the extent any provision of this Agreement is
held  invalid or unenforceable,  the Members  shall negotiate, in  good faith,
concerning  an amendment  to the Agreement  that will  achieve, to  the extent
possible consistent with applicable law, the intended effect of the invalid or
unenforceable provision. 

      14.10 Headings.    The  headings  in  this  Agreement  are inserted  for
convenience  and  identification  only  and  are  not  intended  to  describe,
interpret, define, or limit the scope, extent, or intent of  this Agreement or
any provision hereof.

      14.11 Gender; Articles and Sections.  Whenever the context requires, the
gender of  all  words used  in  this Agreement  shall include  the  masculine,
feminine, and neuter, and the  number of all words shall include  the singular
and the  plural.   All  references to  article and  section  numbers refer  to
articles and sections of this Agreement.

      14.12 Indemnity.  Each  Member hereby agrees  to defend, indemnify,  and
hold harmless the  Company and the other Members from and  against any and all
losses, costs  (including,  without limitation,  the costs  of litigation  and
attorneys' fees), claims, causes of action, damages,  and liabilities that are
attributable to the breach by the indemnifying Member of any of the provisions
of this  Agreement (including, without  limitation, the provisions  of Section
9.1 hereof);  provided however,  the indemnity provided in this Section  14.12
shall be  only  for the  benefit  of the  Company and  other  Members, to  the
exclusion of all other purported third party beneficiaries. 

      14.13 Further Assurances.  In connection with this Agreement, as well as
all transactions contemplated by this  Agreement, each signatory party  hereto
agrees to execute and deliver such additional documents and instruments and to
perform  such additional acts  as may be  necessary or appropriate  to effect,
carry out,  and perform all of  the terms, provisions, and  conditions of this
Agreement and all such transactions.

      14.14 Independent Conduct.   The  Representatives and the  Manager shall
not be required to manage the Company as their sole and exclusive function and
such Manager and Representatives  and Affiliates of any Member  may have other
business interests  and  may engage  in  other  investments or  activities  in
addition to those relating to the Company, irrespective of whether some may be
in  competition with the business and activities  of the Company.  Neither the
Company nor any  Member shall have any right, by virtue  of this Agreement, to
share  or  participate  in  such  other  business  interests,  investments  or
activities of a Manager or a Representative or an Affiliate of a Member, or to
the income or  proceeds derived therefrom.  No Manager or Representative shall
incur liability to the  Company or to any Member solely  by reason of engaging
in any such other business, investment or activity.  Nothing in this Agreement
shall affect any obligations and liabilities of a Member Representative to the
Member that selected such Member Representative.

      14.15 Deemed Assent.  The failure of a Representative to respond, within
the  response period  set forth  in the  request in  question (which  response
period  shall not be less  than seven (7)  business days nor  more than twenty
(20) business days  for from the date on which  the Representative in question
is deemed  to have received such  request pursuant to Section  14.3) either in
the affirmative  or in the negative,  to any request it  receives from another
Representative  relating  to  a  proposed   act  in  respect  of  which   such
Representative  is  entitled  to  vote   pursuant  to  this  Agreement,  shall
conclusively be deemed for all purposes to be a vote by such Representative in
favor of any act set forth in such request.

      14.16 Signing Members; Certificate of  Authority.  The Members Committee
shall designate from time to time one or more of the Members to  execute (when
requested to do so by the Manager)  documents on behalf of the Company.   Each
Member  agrees to  execute (and  acknowledge, if  requested) and  deliver such
documents and instruments as the Members Committee may request to evidence and
confirm  to third  parties the  power,  authority, and  right  of the  Members
Committee, the Manager, and the Members designated pursuant to the immediately
preceding sentence to act on behalf  of and bind the Company (but only  to the
extent, in  each case, that  the action  in question is  one that the  Members
Committee or  Manager or Member in  question is entitled to  take pursuant to,
and not in violation of, this Agreement).

      14.17 Withholding or Granting of Consent.   Each Member and the  Members
Committee may, with respect to any consent or approval  that it is entitled to
grant pursuant  to this Agreement, grant or  withhold such consent or approval
in its sole and uncontrolled discretion, with or without cause, and subject to
such conditions as it shall deem appropriate.

      14.18 Waiver  of Certain  Rights.   Each Member  irrevocably  waives the
right it might have  to maintain any action for  partition of the property  of
the Company.

      14.19 U.S. Currency.   All  sums and  amounts payable  or to be  payable
pursuant  to the  provisions of  this Agreement  shall be  payable in  coin or
currency of  the United  States of America  that, at  the time of  payment, is
legal tender for the  payment of public and private debts in the United States
of America.

      14.20  Dispute Resolution.   In the  event the Members  Committee cannot
reach  a decision as to any matter concerning  the business of the Company and
remains unable to do so  with respect to any such  matter for a period of  not
less than 30 days, it shall refer such matter to the Designated Representative
of each of the Members for resolution.  

      14.21 Proprietary Information.      Each of the Members acknowledges and
agrees  that,  to the  extent in  the performance  of  this Agreement  and the
conduct of the business and operations of the Company, it receives Proprietary
Information from the other  Partner, it will exert reasonable  efforts to hold
such  Proprietary Information confidential  and not  disclose the same  to any
third party  without the  prior written  consent of  the other  Member hereto.
Neither  Member shall by virtue of this  Agreement acquire any right, title or
interest in the Proprietary Information belonging to the other Member. 

      14.22 Publicity.        Except  as  otherwise  required  by   applicable
federal or  state securities laws,  regulations or rules  or the rules  of any
national stock exchange,  neither of the Members will issue  any press release
or  other form  of publicity without  the prior  written consent  of the other
Member, such consent not to be unreasonably withheld.  


                                  ARTICLE XV

                                  DISSOLUTION


      15.1  Dissolution.      Unless the Members  otherwise agree in  writing,
and as  provided in Section  11.1(f) the Company  shall be dissolved if  on or
before November 10, 1996 all of the following events have not occurred:

      a.    The execution and delivery of this Agreement have been ratified by
            the board of directors of  Conoco, and Conoco shall have  notified
            Reading & Bates in writing of such ratification;

      b.    The execution and delivery of this Agreement have been ratified by
            the board of  directors of Reading  & Bates, and  Reading &  Bates
            shall have notified Conoco in writing of such ratification;  and

      c.    Conoco Drilling Inc. shall have entered into the Drilling Contract
            with the Company.
 
      15.2  Ancillary Agreements.   Upon the  last to occur of  the events set
out in Sections 15.1.a, 15.1.b and  15.1.c above, the Company shall enter into
negotiation as  to  those agreements  referenced  in  paragraphs (a)  and  (b)
hereof, and enter into the agreement in paragraph (c), all as follows:

      a.    the Marine Services Agreement with Conoco or one of its Affiliates
            in draft form attached as Exhibit "F" to this Agreement; 

      b.    the  Drilling Services Agreement with Reading & Bates Drilling Co.
            or one of its Affiliates in draft form attached as  Exhibit "G" to
            this Agreement; and

      c.    the construction  financing credit  agreement between  the Company
            and Conoco Inc. substantially in the form  attached as Exhibit "H"
            to this Agreement.


      EXECUTED on this       day of October, 1996.


                                              MEMBERS

                                    CONOCO DEVELOPMENT COMPANY


                              By:                                  

                              Its:                                 

                              600 North Dairy Ashford
                              Houston, Texas  77079

                                    Attention:  __________________

                              Telecopy No.:  (713) 293-3700  




                                    RB DEEPWATER EXPLORATION INC.


                              By:                                  

                              Its:                                 

                              901 Threadneedle, Suite 200
                              Houston, Texas     77079

                                    Attention:  President

                              Telecopy No.: (713) 496-0285



STATE OF TEXAS               )  
                             )  SS
COUNTY OF HARRIS             )


      BEFORE me,                    , a Notary Public,  on this day personally
appeared                                 ,                                , of
Conoco Development  Company, a corporation, known to me to be the person whose
name is subscribed to the foregoing instrument, and acknowledged to me that he
executed said instrument for the purposes and consideration therein expressed.


      Given under my hand and seal  of office this        day of             ,
1996 in                       .




My commission expires:                                            
                                    Notary Public



STATE OF TEXAS               )  
                             )  SS
COUNTY OF HARRIS             )


      BEFORE me,                    , a  Notary Public, on this day personally
appeared                                ,                              , of RB
Deepwater Exploration Inc., a corporation,  known to me to be the person whose
name is subscribed to the foregoing instrument, and acknowledged to me that he
executed said instrument for the purposes and consideration therein expressed.


      Given under my  hand and seal of office this        day  of            ,
1996 in                       .


My commission expires:                                            
                                    Notary Public


            EXHIBIT "A" - DESCRIPTION OF DRILLSHIP



                 EXHIBIT "B" - INDEMNIFICATION AGREEMENTS

                           INDEMNIFICATION AGREEMENT


            THIS INDEMNIFICATION  AGREEMENT  (the  "Agreement")  dated  as  of
October     , 1996, is made by  CONOCO INC., a Delaware corporation ("Conoco")
in favor of RB DEEPWATER EXPLORATION INC., a Nevada corporation ("RB").

            WHEREAS, RB and Conoco Development Company, a Delaware corporation
("CDC")  have entered  into a  Limited Liability  Company Agreement  (the "LLC
Agreement") dated  of even  date with  respect to  the formation of  Deepwater
Drilling L.L.C. (the "Company") herewith;

            WHEREAS,  RB  has  requested   Conoco  execute  and  deliver  this
Indemnification Agreement as partial consideration for RB's  entering into the
LLC Agreement.

            NOW  THEREFORE, in consideration  of the premises  and in order to
induce RB to enter into the LLC Agreement, Conoco hereby agrees as follows:

            SECTION 1.    Indemnification.    Conoco  hereby  agrees  to  pay,
protect, indemnify, hold  harmless and defend  RB from any  failure of CDC  to
make  any equity  contribution  to the  Company, as  and  when required  under
Sections 5.1  and 5.2 of  the LLC Agreement, and  agrees that in  the event of
such  failure, Conoco will promptly pay on behalf  of CDC any such amounts due
under Sections 5.1  or 5.2 of  the LLC Agreement.   No payment required  to be
made by Conoco under this Section 1 shall be subject  to any right of set off,
counterclaim,   defense,  abatement,   suspension,  deferment   or  reduction.
Capitalized terms  not  otherwise defined  in this  Agreement  shall have  the
meanings ascribed to them in the LLC Agreement.

            SECTION 2.  Representations and Warranties.  Conoco represents and
warrants to RB as follows:

           (a)     Conoco  (i)  is  a  corporation   duly  organized,  validly
      existing and  in good  standing  under the  law of  its jurisdiction  of
      incorporation  and is  in good  standing in  all jurisdictions  in which
      failure to be  or remain in good standing would  have a material adverse
      effect  upon  its   ability  to  perform  its  duties,   obligations  or
      liabilities  hereunder and  (ii) has  all requisite  corporate  power to
      conduct  its  business  and  to  execute  and  deliver and  perform  its
      obligations under this Indemnification Agreement.

           (b)     The execution, delivery  and performance by Conoco of  this
      Indemnification Agreement has  been duly authorized and  approved by all
      necessary corporate action on the part of  Conoco.  This Indemnification
      Agreement constitutes the legal, valid and binding obligation  of Conoco
      and is enforceable against Conoco  in accordance with its terms,  except
      insofar as  enforceability may  be limited  by applicable debtor  relief
      laws or subject to general  principles of equity (regardless of  whether
      such enforceability is considered in a proceeding in equity or at law).

           (c)     No order,  consent, approval,  license, permit,  franchise,
      waiver,  exemption,  authorization  of  or  validation  of,  or  filing,
      recording or registration with  (except those that have  been heretofore
      obtained  or made  and of  which RB  has heretofore  been given  written
      notice)  or  exemption  by,  any  person  or  tribunal  is  required  to
      authorize,  or is required in  connection with, the execution, delivery,
      performance,  legality, validity,  binding  effect or  enforceability of
      this Indemnification Agreement.

           (d)     No  bankruptcy,  insolvency,  reorganization,  arrangement,
      readjustment  of debt,  dissolution, liquidation  or similar  proceeding
      with respect  to Conoco or any of its subsidiaries has been commenced in
      any jurisdiction.

           (e)     There are  no actions,  suits or proceedings pending  or to
      Conoco's knowledge, threatened against or affecting Conoco or any of its
      subsidiaries before any court  or arbitrator which is reasonably  likely
      to have a material adverse  effect on the financial condition,  business
      or operations of Conoco and its subsidiaries, taken as a whole, or would
      impair the validity or enforceability of this Agreement.

            SECTION 3.    Amendments, Etc.    No amendment  or waiver  of  any
provision  of this Indemnification  Agreement nor consent  to any departure by
Conoco therefrom shall  in any event be effective unless the  same shall be in
writing and  signed by RB, and each such  waiver or consent shall be effective
only in the specific instance and for the specific purpose for which given.

            SECTION  4.  Notices,  Etc.  All  notices and other communications
provided  for herein shall  be given or  made in writing  and addressed, if to
Conoco,  at its address set  forth under its signature below,  or if to RB, at
its address set forth under its signature below, such  notice or notices to be
effective only upon receipt by the party to which such notice is addressed.

            SECTION 5.  No Waiver; Remedies.   No failure on the part of RB to
exercise, and no  delay in exercising, any right hereunder  shall operate as a
waiver  thereof;  nor  shall  any  single or  partial  exercise  of  any right
hereunder preclude  any other or further  exercise thereof or the  exercise of
any other right.  No course of dealing between  Conoco and RB shall operate as
a waiver of any right of RB.  The remedies herein provided are  cumulative and
not exclusive of any remedies provided by law, admiralty, equity or otherwise.

            SECTION 6.  Separability.  Should any clause, sentence, paragraph,
sub-section  or  Section  of  this  Indemnification  Agreement  be  judicially
declared to be invalid, unenforceable or void, such decision will not have the
effect  of  invalidating or  voiding  the  remainder of  this  Indemnification
Agreement, and  Conoco agrees that  the part or  parts of the  Indemnification
Agreement so held to be invalid, unenforceable or void will be  deemed to have
been  stricken  herefrom and  the  remainder  will  have  the same  force  and
effectiveness as if such part or parts had never been included herein.

            SECTION  7.    Captions.   The  captions  in  this Indemnification
Agreement have  been inserted  for  convenience only  and  shall be  given  no
substantive  meaning or  significance  whatever in  construing  the terms  and
provisions of this Indemnification Agreement.

            SECTION   8.     Successors   and  Assigns;   Assignment.     This
Indemnification  Agreement shall (a) remain in full force and effect until CDC
has met its obligations  under Sections 5.1 and 5.2 of the  LLC Agreement; (b)
be  binding upon Conoco,  its successors  and assigns; provided  that Conoco's
rights and obligations hereunder may not be assigned without the prior written
consent of RB;  and (c) inure to the benefit of and be enforceable only by  RB
and its successors and assigns.

            SECTION 9.  Limitation  by Law.  All  rights, remedies and  powers
provided in this Indemnification Agreement may be exercised only to the extent
that  the exercise thereof  does not violate any  applicable provision of law,
and all the  provisions of this  Indemnification Agreement are intended  to be
subject to all applicable mandatory provisions of law which may be controlling
and to  be limited to the  extent necessary so  that they will not  render the
Indemnification Agreement invalid, unenforceable, in whole or  in part, or not
entitled  to be  recorded, registered  or filed  under the  provisions of  any
applicable law.

            SECTION   10.     Survival  of   Covenants,  Representations   and
Warranties.  All  covenants, representations and warranties  contained in this
Indemnification  Agreement shall survive  the execution  and delivery  of this
Indemnification Agreement and  shall continue  until CDC  has met  all of  its
obligations   under  Sections  5.1  and  5.2   of  the  LLC  Agreement.    Any
investigation by  RB shall not diminish in any respect whatsoever its right to
rely on such covenants, representations and warranties.

            SECTION 11.   Fees and Expenses.  Conoco shall pay all costs, fees
and  expenses (including, but  not limited to,  reasonable attorneys' fees and
disbursements) incurred by RB in  collecting or enforcing Conoco's obligations
or RB's rights or remedies under this Indemnification Agreement.

            SECTION 12.   Governing Law.  This Indemnification Agreement shall
be  governed by  and construed  in accordance  with the laws  of the  state of
Delaware, without regard to principles of conflict of laws.

            SECTION  13.   Final  Agreement.   This Indemnification  Agreement
represents  the final  agreement between  RB and  Conoco with  respect  to the
subject matter hereof.   Each of Conoco and RB  hereby represents and warrants
that it is not relying on any statement, representation, warranty, covenant or
agreement of  any kind  except  for those  set forth  in this  Indemnification
Agreement.

            IN  WITNESS   WHEREOF,  Conoco  has  caused  this  Indemnification
Agreement to be duly executed by  its officer thereunto duly authorized, as of
the date first above written.

                                    CONOCO INC.



                                    By:                          
                                    Name:                        
                                    Title:                       

                                    600 North Dairy Ashford
                                    Houston, Texas  77079
                                    Attention:                    
                                    Telecopier No. (713)               


ACCEPTED THIS      DAY 
OF OCTOBER 1996.

RB DEEPWATER EXPLORATION INC.


By:                           
Name:                         
Title:                        

901 Threadneedle, Suite 200
Houston, Texas  77079
Attention:  Chief Financial Officer
Telecopier No. (713) 496-0285



                           INDEMNIFICATION AGREEMENT


            THIS  INDEMNIFICATION  AGREEMENT  (the "Agreement")  dated  as  of
October       ,  1996, is  made by  READING &  BATES  CORPORATION, a  Delaware
corporation  ("RB")  in  favor  of  CONOCO  DEVELOPMENT  COMPANY,  a  Delaware
corporation ("Conoco").

            WHEREAS,  Conoco  and RB  Deepwater  Exploration,  Inc., a  Nevada
corporation ("Reading & Bates") have entered into  a Limited Liability Company
Agreement (the "LLC Agreement")  dated of even date  herewith with respect  to
the formation of Deepwater Drilling L.L.C. (the "Company");

            WHEREAS,  Conoco  has  requested   RB  execute  and  deliver  this
Indemnification Agreement as partial  consideration for Conoco's entering into
the LLC Agreement.

            NOW  THEREFORE, in consideration  of the premises  and in order to
induce Conoco to enter into the LLC Agreement, RB hereby agrees as follows:

            SECTION  1.  Indemnification.   RB hereby  agrees to pay, protect,
indemnify, hold harmless and defend Conoco from any failure of Reading & Bates
to make  any equity contribution  to the Company,  as and when  required under
Sections 5.1  and 5.2 of  the LLC Agreement, and  agrees that in  the event of
such  failure, RB  will promptly pay  on behalf  of Reading  & Bates  any such
amounts  due under  Sections 5.1  or 5.2  of the  LLC  Agreement.   No payment
required to be made by RB  under this Section 1 shall be subject to  any right
of  set  off,  counterclaim,  defense,  abatement,  suspension,  deferment  or
reduction.  Capitalized terms  not  otherwise defined  herein  shall have  the
meanings ascribed to them in the LLC Agreement.  

            SECTION 2.   Representations  and Warranties.   RB  represents and
warrants to Conoco as follows:

           (a)     RB (i)  is a corporation  duly organized, validly  existing
      and in good standing under the law of its jurisdiction  of incorporation
      and is in good  standing in all jurisdictions in which  failure to be or
      remain in good  standing would have a  material adverse effect  upon its
      ability  to perform its duties, obligations or liabilities hereunder and
      (ii) has all  requisite corporate power to  conduct its business and  to
      execute   and   deliver  and   perform   its   obligations  under   this
      Indemnification Agreement.

           (b)     The  execution, delivery  and  performance by  RB  of  this
      Indemnification Agreement has  been duly authorized and  approved by all
      necessary  corporate action  on the  part of  RB.   This Indemnification
      Agreement constitutes the legal, valid and binding  obligation of RB and
      is enforceable against RB in  accordance with its terms, except  insofar
      as  enforceability may be  limited by  applicable debtor relief  laws or
      subject  to general  principles of  equity (regardless  of whether  such
      enforceability is considered in a proceeding in equity or at law).

           (c)     No order,  consent, approval,  license, permit,  franchise,
      waiver,  exemption,  authorization  of  or  validation  of,  or  filing,
      recording or registration with  (except those that have  been heretofore
      obtained or made  and of which Conoco has heretofore  been given written
      notice)  or  exemption  by,  any  person  or  tribunal  is  required  to
      authorize,  or is required in  connection with, the execution, delivery,
      performance,  legality, validity,  binding  effect or  enforceability of
      this Indemnification Agreement.

           (d)     No  bankruptcy,  insolvency,  reorganization,  arrangement,
      readjustment  of debt,  dissolution, liquidation  or similar  proceeding
      with respect to RB or  any of its subsidiaries has been commenced in any
      jurisdiction.

           (e)     There are  no actions,  suits or proceedings pending  or to
      RB's  knowledge,  threatened  against  or affecting  RB  or  any  of its
      subsidiaries before any court  or arbitrator which is reasonably  likely
      to have a material adverse  effect on the financial condition,  business
      or operations of  RB and its  subsidiaries, taken as  a whole, or  would
      impair the validity or enforceability of this Agreement.

            SECTION 3.    Amendments, Etc.    No amendment  or waiver  of  any
provision of this Indemnification Agreement nor consent to any departure by RB
therefrom shall in any event be effective unless the same shall be in  writing
and signed by Conoco, and  each such waiver or consent shall be effective only
in the specific instance and for the specific purpose for which given.

            SECTION  4.  Notices,  Etc.  All  notices and other communications
provided for herein shall be given or made in writing and addressed, if to RB,
at  its address set forth  under its signature below, or  if to Conoco, at its
address  set forth  under its signature  below, such  notice or  notices to be
effective only upon receipt by the party to which such notice is addressed.

            SECTION 5.  No Waiver; Remedies.  No failure on the part of Conoco
to exercise, and no delay in  exercising, any right hereunder shall operate as
a  waiver  thereof; nor  shall any  single or  partial  exercise of  any right
hereunder preclude  any other or further  exercise thereof or the  exercise of
any other right.  No course of dealing between  RB and Conoco shall operate as
a waiver of any right of Conoco.  The remedies  herein provided are cumulative
and not  exclusive  of any  remedies  provided by  law,  admiralty, equity  or
otherwise.

            SECTION 6.  Separability.  Should any clause, sentence, paragraph,
sub-section  or  Section  of  this  Indemnification  Agreement  be  judicially
declared to be invalid, unenforceable or void, such decision will not have the
effect  of  invalidating  or voiding  the  remainder  of this  Indemnification
Agreement,  and  RB agrees  that  the  part or  parts  of the  Indemnification
Agreement so held  to be invalid, unenforceable or void will be deemed to have
been  stricken  herefrom  and the  remainder  will  have  the  same force  and
effectiveness as if such part or parts had never been included herein.

            SECTION  7.   Captions.    The  captions in  this  Indemnification
Agreement  have  been inserted  for convenience  only  and shall  be  given no
substantive  meaning or  significance  whatever in  construing  the terms  and
provisions of this Indemnification Agreement.

            SECTION   8.     Successors   and  Assigns;   Assignment.     This
Indemnification  Agreement shall  (a) remain  in full  force and  effect until
Reading & Bates has met its obligations under Sections  5.1 and 5.2 of the LLC
Agreement; (b) be binding  upon RB, its successors and assigns;  provided that
RB's rights  and obligations hereunder  may not be assigned  without the prior
written consent of Conoco;  and (c) inure to the benefit of and be enforceable
only by Conoco and its successors and assigns.

            SECTION 9.   Limitation by Law.   All rights, remedies  and powers
provided in this Indemnification Agreement may be exercised only to the extent
that the exercise  thereof does not  violate any applicable provision  of law,
and  all the provisions of  this Indemnification Agreement  are intended to be
subject to all applicable mandatory provisions of law which may be controlling
and to be  limited to the  extent necessary so that  they will not  render the
Indemnification Agreement invalid, unenforceable, in whole or  in part, or not
entitled to  be  recorded, registered  or filed  under the  provisions of  any
applicable law.

            SECTION  10.     Survival   of   Covenants,  Representations   and
Warranties.  All covenants, representations  and warranties contained in  this
Indemnification  Agreement shall  survive the execution  and delivery  of this
Indemnification Agreement and shall continue until Reading & Bates has met all
of  its obligations under  Sections 5.1  and 5.2  of the  LLC Agreement.   Any
investigation by Conoco shall not diminish in any respect whatsoever its right
to rely on such covenants, representations and warranties.

            SECTION 11.   Fees and Expenses.  RB shall pay all costs, fees and
expenses  (including,  but not  limited  to,  reasonable attorneys'  fees  and
disbursements) incurred by Conoco in collecting or  enforcing RB's obligations
or Conoco's rights or remedies under this Indemnification Agreement.

            SECTION 11.  Governing Law.   This Indemnification Agreement shall
be governed  by and  construed in  accordance with  the laws  of the  state of
Delaware, without regard to principles of conflict of laws.

            SECTION  12.   Final  Agreement.   This Indemnification  Agreement
represents  the final  agreement between  Conoco and  RB with  respect to  the
subject matter hereof.   Each of  RB and Conoco hereby represents and warrants
that it is not relying on any statement, representation, warranty, covenant or
agreement of  any kind  except for  those  set forth  in this  Indemnification
Agreement.

            IN WITNESS  WHEREOF, RB has caused  this Indemnification Agreement
to be duly executed by its officer  thereunto duly authorized, as of the  date
first above written.

                                    READING & BATES CORPORATION



                                    By:                          
                                    Name:                        
                                    Title:                       

                                    901 Threadneedle, Suite 200
                                    Houston, Texas  77079
                                    Attention:  Chief Financial Officer
                                    Telecopier No. (713) 496-0285


ACCEPTED THIS      DAY 
OF OCTOBER 1996.

CONOCO DEVELOPMENT COMPANY


By:                           
Name:                         
Title:                        

600 North Dairy Ashford
Houston, Texas  77079
Attention:                    
Telecopier No. (713)               


                         EXHIBIT "C" - SHARING RATIOS



      Conoco Development Company          0.50 (50%)

      RB Deepwater Exploration Inc.       0.50 (50%)





                    EXHIBIT "D" - CERTIFICATE OF FORMATION

                           CERTIFICATE OF FORMATION

                                      OF

                           DEEPWATER DRILLING L.L.C.


The Certificate of Formation of  Deepwater Drilling L.L.C. (the "Company")  is
being  executed by  the  undersigned  for the  purpose  of  forming a  limited
liability company pursuant to the Delaware Limited Liability Company Act.

(a)   The name of the Company is Deepwater Drilling L.L.C.

(b)   The address of the registered office of the Company in  Delaware is 1209
      Orange  Street, Wilmington,  Delaware 19801.   The  Company's registered
      agent at that address is The Corporation Trust Company.

(c)   Any rights of indemnification or guaranties provided  for or referred to
      in the Company's Limited Liability  Company Agreement shall only be  for
      the benefit of the Company, the Members, the Members' Representatives or
      the  Manager, as  applicable, to  the exclusion  of all  other purported
      third party beneficiaries.

IN WITNESS WHEREOF, the undersigned, each an authorized person of the Company,
have caused this Certificate of  Formation to be duly executed as of the      
day of                   , 1996.

RB DEEPWATER EXPLORATION INC.,            CONOCO DEVELOPMENT COMPANY,
  An Authorized Person                            An Authorized Person


By:                                 By:                           
Name:                               Name:                         
Title:                              Title:                                    
                                 






                 EXHIBIT "E" - FORM OF DEMAND PROMISSORY NOTE


                           DEMAND PROMISSORY NOTE


$22,000,000.-                                                 [Houston, Texas]
                                                          [            , 1996]


      This  Demand  Promissory Note  is given  the  day and  year  first above
written and made and executed by                                    ("Maker"),
a                corporation.   Capitalized terms used herein and not  defined
herein will  have  the respective  meanings assigned  thereto  in the  Limited
Liability  Company  Agreement  dated  as  of  June   1,  1996  between  Conoco
Development Company and RB Deepwater Exploration Inc. (the "Agreement").

      For  value  received, Maker  hereby  promises  to pay  to  the  order of
Deepwater Drilling L.L.C. ("Payee"), on the earlier of (i) demand,  as set out
in  the Agreement, or (ii) August 31, 1998, or (iii) one business day prior to
delivery of  the Drillship (in each case the "Maturity"), the principal amount
of Twenty-Two Million Dollars  ($22,000,000).  Payee may  make demand for  the
entire principal amount or for any part thereof, and if only a part thereof is
demanded,  Payee  shall  be  entitled to  make  subsequent  demand(s)  for the
balance, or any portion thereof prior to Maturity, with the remaining balance,
if any, due on Maturity.   All amounts due hereunder will paid to Payee in New
York, New York,  at such  bank as  Payee may  designate by  written notice  to
Maker, as provided in the Agreement.

      No  interest shall accrue  under this  Demand Promissory Note  unless or
until the  earlier of demand  or Maturity, and if  a demand is  made only with
respect to a portion of the  principal amount, interest shall accrue only with
respect to that portion not paid on demand.  Any interest accruing  under this
Demand Promissory Note  shall accrue at  the lesser of  (i) the interest  rate
publicly  quoted by Texas  Commerce Bank, N.A.,  Houston, Texas,  as its prime
commercial  rate, plus  five percent  (5%), or  (ii) the  maximum non-usurious
interest rate permitted by applicable law.  Such interest will  accrue only if
payment of the principal amount hereunder, or  in the event of a demand for  a
portion  thereof, such  portion,  is not  paid forthwith  by  Maker, and  such
interest will continue  to accrue  thereafter until  such time  as the  unpaid
amount  has been paid.

      This Demand Promissory Note is  delivered in accordance with   the terms
and the conditions of the Agreement.

      THIS DEMAND  PROMISSORY  NOTE SHALL  BE  GOVERNED  BY AND  CONSTRUED  IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 



                                                                      
                                                                     Maker

                                          By:                                 
                                          Name:                       
                                          Its:                        


                    EXHIBIT "F" - MARINE SERVICES AGREEMENT

                             MARINE SERVICES AGREEMENT

      This Agreement  is made on  October __, 1996,  by and between  DEEPWATER
DRILLING L.L.C.,  a limited liability company  under the laws of  the state of
Delaware and  having  an office  in Houston,  Texas,  hereinafter called  "the
Company", and CONOCO  SHIPPING COMPANY, a  corporation incorporated under  the
laws of  Liberia and having  an office in  Houston, Texas,  hereinafter called
"Contractor".

WITNESSETH

      WHEREAS, the Company  desires to provide  offshore drilling services  to
the oil and gas industry utilizing the  dynamically positioned drillship under
construction by Samsung Heavy Industries Co., Ltd.  and Samsung Corporation at
Koje Island, Korea, Builder's Hull No. 1220,  hereinafter called "the Drilling
Unit", to be  delivered to the Company upon completion of such construction;

      WHEREAS,  the Company  intends to  enter into  a drilling  contract with
Conoco Drilling Inc. ("Conoco") having a  term of five (5) years, plus options
as  further set out  therein, hereinafter  called the "Drilling  Contract", to
provide  drilling  services utilizing  the  Drilling Unit  upon  completion of
construction and  mobilization of the Drilling  Unit to a U.S.  Gulf of Mexico
port;

      WHEREAS, the group of companies of which Contractor is a member has been
engaged in operating tankers and other vessels for many years and has acquired
a   qualified  and   experienced   operational,   marketing,   technical   and
administrative  staff with the  knowledge, skill and  experience to assist the
Company  in the  marine  aspects of  the  construction and  operations of  the
Drilling Unit;

      WHEREAS,  the Company desires  to avail  itself of  certain operational,
marketing, technical and administrative staff of  Contractor and has requested
Contractor to provide certain services and personnel to the Company; and

      WHEREAS, Contractor has agreed to provide such services and personnel to
the Company in accordance with the following terms and conditions.

      NOW  THEREFORE,  in  consideration  of the  mutual  covenants  contained
herein, the parties agree as follows:

      1.    Services to be Provided by Contractor

            Pursuant  to the  terms  of this  Agreement  Contractor agrees  to
            provide the following services as  requested from time to time  by
            the Company.

            A. Engineering and related technical  services in the  mechanical,
               electrical,  structural  and  marine  engineering  disciplines,
               pertaining   to   the   construction,   installation,  testing,
               commissioning and operation of the marine systems applicable to
               the Drilling Unit.

            B. Assistance to the Company  for the procurement and  delivery of
               necessary equipment, spare parts and supplies applicable to the
               marine system of the Drilling Unit in a timely manner.

            C. Policies,  procedures  and   systems  for  project  management,
               management  information,  safety,  preventive  maintenance  and
               inventory  control  applicable to  the  marine  systems of  the
               Drilling Unit.

            D. Assistance  in the  recruitment  of  qualified and  experienced
               marine personnel for the Drilling  Unit by the Company and  for
               the training of marine personnel to be assigned to the Drilling
               Unit.

            E. Project management, inspection and related technical assistance
               services applicable to the marine systems  of the Drilling Unit
               prior to delivery of the Drilling Unit from the shipyard.

            If  Contractor is  unable to  provide the  services  requested for
            whatever reason, Contractor shall  promptly advise Company of same
            in writing,  and  Contractor will  owe  no further  obligation  to
            Company with respect to the requested services.

            All services provided by Contractor  under this Agreement shall be
            in conformance with good and accepted marine practice and standard
            operating procedures and practices of the industry.

      2.    Personnel

            Contractor  agrees to  provide, or  cause to  be provided,  to the
            Company all marine and support personnel in the categories set out
            in  Exhibit A to this Agreement, as may be reasonably requested by
            the Company from time to time, to assist the Company in connection
            with the construction, installation, testing and commissioning and
            operation of the marine system of the  Drilling Unit, and in order
            for the Company to meet the requirements  of any drilling contract
            for  the Drilling Unit.   With  respect to the  Drilling Contract,
            Contractor  agrees to provide  at the  request of the  Company the
            marine personnel set out in Appendix B of the Drilling Contract.

      3.    Remuneration

            A. In consideration of the  services being provided hereunder, the
            Company agrees to pay Contractor,  on a monthly basis in  arrears,
            the  sum of not  to exceed U.S.  $1,000 per day  commencing on the
            Commencement Date of  the Drilling Contract and continuing for the
            duration  of  the Drilling  Contract,  such  rate to  be  adjusted
            quarterly  based  on  changes  in  the  Consumer Price  Index,  as
            published in the Survey of  Current Business Bulletin by the  U.S.
            Department  of Labor, commencing  with the index  for the month of
            September, 1998.   The parties  agree to negotiate, in good faith,
            adjustments in such rate from time to time, based on  the level of
            marine services  Contractor provides to  Company and the  level of
            marine services provided to Contractor by third parties.  

            B. The Company agrees to reimburse Contractor for:

              (1)  Any  and all payroll  and payroll  burden costs incurred by
                   Contractor in  providing personnel   pursuant to Section  2
                   of  this Agreement  since June  1, 1996,  such payroll  and
                   payroll   burden   costs   to  be   in   conformance   with
                   Contractor's  normal   accounting  practices  and  employee
                   benefits in effect from time to time;

              (2)  Any and  all third  party costs incurred  by Contractor  in
                   the procurement  of equipment,  materials, supplies,  spare
                   parts or personnel requested by the Company, including  all
                   relevant transportation, travel and insurance costs.

            C. As   additional   consideration  for   the   services  provided
               hereunder,  the Company agrees  to pay,  on a monthly  basis in
               arrears, to Contractor an amount  equal to one percent (1%)  of
               the  monthly revenues  accruing to  Company under  the Drilling
               Contract  excluding,  however,  amounts  for  which Company  is
               entitled to cost  reimbursement from Conoco under  the terms of
               the Drilling Contract.

      4.    Payment

            A. The Company shall pay all amounts due  to Contractor under this
               Agreement  by wire transfer,  in freely  available funds,  to a
               bank to be designated by Contractor in               ,         
                     for credit to Contractor's account.

            B. All such amounts  shall be  paid within  twenty days  following
               receipt  by  the  Company  of  monthly  invoices  supported  by
               reasonable  documentation.  All amounts not paid when due shall
               earn interest until paid  at the rate of  50 basis points  over
               the 3 month LIBOR in effect, from time to time, as published in
               the "Wall Street Journal".

      5.    Confidential Information

            Any proprietary or  confidential information, documents,  manuals,
      systems,  designs,  drawings  or  other  like  or  unlike   material  or
      information  made available to the Company  by Contractor is for the use
      only  by  the Company  for  use  with the  services  to  be provided  by
      Contractor pursuant  to this Agreement and shall be so designated at the
      time of disclosure.  Title to all such material and information shall at
      all times  be in Contractor, and  the Company shall not  have any rights
      with respect to such material and information except the use provided by
      this Agreement.   During the term  of this Agreement and  thereafter for
      five  years after the  expiration or earlier  termination thereof or the
      date of  disclosure  of  such  information, whichever  is  earlier,  the
      Company will not permit the use of any such information by a third party
      and will at  all times keep  it in the strictest  confidence.  Upon  the
      expiration or earlier  termination of this Agreement,  the Company shall
      return to  Contractor  all such  material  received from  Contractor  or
      prepared by  Contractor pursuant  to  this Agreement  and shall  neither
      retain  any  copy  of  such   material  nor  thereafter  use  any   such
      information.  It is expressly agreed  that the obligation of the Company
      under this section will continue  and survive any expiration or  earlier
      termination  of this  Agreement,  provided that  this section  shall not
      apply to information which is:

            A. Contained in a publication of general circulation;

            B. Disclosed in  good faith by  a third party not  in privity with
               the party  originally disclosing  such information which  has a
               bona fide right to disclose such information; or

            C. Information substantially acquired or  developed for, or  from,
               the operations or maintenance of the Drilling Unit;

      save that the Company shall  be entitled, after reasonable prior  notice
      to Contractor, to disclose any such confidential  information, report or
      document: -

           (a)     in  connection with  any proceedings  arising out of  or in
                   connection with this  Agreement to the extent necessary  to
                   protect its interests;

           (b)     to any prospective assignee of any interest in the  Company
                   subject   to   it  obtaining   an  undertaking   from  such
                   prospective assignee in the terms of this section;

           (c)     if required to do so by an order  of any court of competent
                   jurisdiction;

           (d)     in pursuance  of any procedure  for discovery of  documents
                   in any proceedings before any such court;

           (e)     pursuant to  any law or regulation  having the force of law
                   or any national stock exchange requirement;

           (f)     pursuant  to  a  requirement  of  any  authority  being  an
                   authority  with whose requirement, of the nature and to the
                   extent in question, it is accustomed to comply; or

           (g)     to  the technical or legal advisers of  the Company subject
                   to it  obtaining an undertaking from  such advisers in  the
                   terms of this section;

      and  the Company  shall  be entitled  so  to disclose  or  use any  such
      information,  report or  document if  the information  contained therein
      shall have emanated  in conditions free  from confidentiality bona  fide
      from some person  other than Contractor or  the agent of Contractor  and
      such party would, but for the preceding  provisions of this sub-section,
      be free  so to disclose or use the same; provided that the Company shall
      use all reasonable endeavors to  avoid disclosure to any third  party in
      accordance with sub-sections (c) (d) (e) and (f) above.

      6.    Term

            A. This Agreement shall remain  in effect until the  expiration or
               earlier  termination of  the  Drilling Contract  as  it may  be
               amended   or  extended  from   time  to  time,   and  shall  be
               automatically  renewed  on an  annual  basis thereafter  unless
               either  party gives  six months'  prior written  notice of  its
               intention to terminate this  Agreement or renegotiate its terms
               to the other party.  If such notice is given, the parties agree
               to meet promptly and discuss in good  faith such termination or
               renegotiation, as the case may  be, and if mutual agreement  is
               not reached regarding same, this Agreement may be terminated by
               either  party,  effective upon  expiration  of  such six  month
               period.

            B. In case of  termination of this Agreement,  Contractor shall be
               entitled to any payments with respect to  services performed or
               costs or expenses incurred prior to such termination.

            C. If either party  materially defaults in the  fulfillment of any
               obligation   under    this    Agreement   without    reasonable
               justification  therefor,  the other  party  will  not have  any
               further obligation to fulfil its obligations until such default
               has been cured.  If such default continues for a period of more
               than 30 days, the non-defaulting party shall have the option to
               terminate this Agreement, without prejudice to any other rights
               it may have. 

      7.    Taxes

            The remuneration  payable  under Sections  3.A  and 3.B  has  been
      calculated on the basis  that Contractor will be liable  for all federal
      and state income and franchise taxes  on the profits arising to it under
      this Agreement but  no other taxes.   Any and all such  other taxes that
      may  be  imposed by  any governmental  authority shall  be borne  by the
      Company.

      8.    Assignment

            Neither party shall assign or transfer  any of its right, title or
      interest in or to this Agreement (except to a successor to substantially
      all  of such  party's business  or to  a corporation  owned by  or under
      common ownership with such party which agrees  to assume all obligations
      of such party,  provided that the assigning  party shall not  thereby be
      released  from  its obligations  hereunder)  without  the prior  written
      consent of the other party,  and any such attempt to assign  or transfer
      without such consent shall have  no effect.  Contractor may  subcontract
      for any  services requested by  Company hereunder, provided  Company has
      approved  any such  subcontract, such  approval  not to  be unreasonably
      withheld.

      9.    Notices

            Any  notice  or  other  communication  for  which  this  Agreement
      provides  shall be  in writing  and will  be delivered to  the addressee
      thereof  or  sent  to  the  address   thereof  by  electronic  facsimile
      communication  or  by  registered  or  certified  mail,  return  receipt
      requested, or by other method which will constitute adequate evidence of
      delivery, as follows:

               If to the Company:

                    Deepwater Drilling L.L.C.
                    901 Threadneedle, Suite 200
                    Houston, Texas  77079

                    Attention:  Manager

               If to Contractor:

                    Conoco Shipping Company
                    c/o  Conoco Inc.
                    600 N. Dairy Ashford
                    Houston, Texas  77079

                    Attention:                    

      or addressed  at such other  address as the  addressee thereof  may have
      designated for that purpose by  written notice given as above  provided.
      Any notice given in conformance  with this clause will be  considered as
      received for all purposes on the date of delivery.

      10.   Governing Law

            This Agreement  shall be governed  by and construed  in accordance
      with the laws of Texas an the parties hereto submit to the non-exclusive
      jurisdiction of the federal and state courts in Harris County, Texas.

      11.   Consequential Damages

            In no  event shall either party to this Agreement be liable to the
      other  party for loss  of profits or  other incidental, consequential or
      special damages.

      12.   Indemnity

            A. Contractor agrees  to defend,  indemnify and hold  harmless the
               Company, to the extent the Company is  not insured or otherwise
               indemnified, for  all losses, claims,  liabilities, obligations
               or  the like  incurred  by the  Company or  any  member in  the
               Company  either directly  or through  the Company  arising from
               Contractor's  failure  to  perform  its  obligations  hereunder
               according  to  good marine  practice  and  consistent with  the
               standard operating  procedures and  practices of  the industry,
               whether  such obligations  are  to be  performed  by itself  or
               through  an  affiliate  or   sub-contractor  appointed  by  it.
               Further,  it is  agreed  that Contractor's  liability, if  any,
               under  this  paragraph  shall  not  in  any  event exceed  U.S.
               $100,000.00 per  occurrence, not  to exceed U.S.  $1,000,000 in
               any one year.

            B. Notwithstanding  the foregoing  it  is agreed  that  Contractor
               shall have  no liability  to  the Company  for pollution,  well
               control costs, reservoir or underground damage or loss of hole,
               regardless of  how caused, including,  but not limited  to, the
               sole, joint  or concurrent  negligence, recklessness or  wilful
               misconduct of Contractor, its employees or sub-contractors.

      13.   Additional Insured and Waiver of Subrogation

            The  Company agrees to  cause the relevant  insurance policies and
      cover  notes being  maintained at  the expense  of the  Company for  the
      benefit of both parties to include both parties as named insureds and to
      cause the  interested underwriters  to waive  all rights  of subrogation
      against the parties hereto.

      14.   Force Majeure

            The  obligations (other  than  any obligations  to  pay money)  of
      either party to  the Agreement shall be suspended  (and failure to carry
      out the same  shall not constitute  a breach of  this Agreement) to  the
      extent,  and  during  the  period, that  such  party  is  prevented from
      carrying out  is obligations by virtue  of any act or  event outside the
      reasonable control of that party.

      15.  Amendment

            This Agreement may  be amended, from time to time,  only by mutual
agreement of the parties in writing. 


      IN WITNESS WHEREOF, the parties thereto have caused this Agreement to be
executed by its duly authorized representatives in Houston, Texas on          
        , 1996.

                                    CONOCO SHIPPING COMPANY




                              By:                               

                              Its:                              



                                    DEEPWATER DRILLING L.L.C.



                              By:                              

                              Its:                               




                   EXHIBIT "G" - DRILLING SERVICES AGREEMENT


                          DRILLING SERVICES AGREEMENT


      This  Agreement is made  on October __,  1996, by  and between DEEPWATER
DRILLING L.L.C.,  a limited liability company  under the laws of  the state of
Delaware and  having  an office  in Houston,  Texas,  hereinafter called  "the
Company", and READING & BATES  DRILLING CO., a corporation incorporated  under
the  laws of  Oklahoma and  having an  office in  Houston, Texas,  hereinafter
called "Contractor".

WITNESSETH

      WHEREAS,  the Company desires  to provide offshore  drilling services to
the oil and gas industry utilizing the  dynamically positioned drillship under
construction by Samsung Heavy Industries Co., Ltd.  and Samsung Corporation at
Koje Island, Korea, Builder's Hull No. 1220,  hereinafter called "the Drilling
Unit", to be delivered to the Company upon completion of such construction;

      WHEREAS,  the Company  intends to  enter into  a drilling  contract with
Conoco Drilling Inc. ("Conoco") having a term of five (5)  years, plus options
as  further set out  therein, hereinafter  called the "Drilling  Contract", to
provide offshore drilling services utilizing the Drilling Unit upon completion
of construction and mobilization of the Drilling Unit to a U.S. Gulf of Mexico
port;

      WHEREAS, the group of companies of which Contractor is a member has been
engaged in operating offshore drilling units   for many years and has acquired
a   qualified   and   experienced   operational,  marketing,   technical   and
administrative  staff with the  knowledge, skill and  experience to assist the
Company in  the drilling  aspects of  the construction  and operations  of the
Drilling Unit;

      WHEREAS,  the Company  desires to  avail itself of  certain operational,
marketing, technical and administrative staff of  Contractor and has requested
Contractor to provide certain services and personnel to the Company; and

      WHEREAS, Contractor has agreed to provide such services and personnel to
the Company in accordance with the following terms and conditions.

      NOW  THEREFORE,  in  consideration  of the  mutual  covenants  contained
herein, the parties agree as follows:

      1.    Services to be Provided by Contractor

            Pursuant to  the  terms of  this  Agreement Contractor  agrees  to
            provide the following services as  requested from time to time  by
            the Company.

            A. Engineering and related technical  services in the  mechanical,
               electrical,  structural  and  marine  engineering  disciplines,
               pertaining   to   the   construction,   installation,  testing,
               commissioning  and  operation  of  the  drilling  and  topsides
               systems of the Drilling Unit.

            B. Assistance  to  the Company's  purchasing organization  for the
               procurement and  delivery of  necessary equipment, spare  parts
               and  supplies applicable to  the marine system  of the Drilling
               Unit in a timely manner.

            C. Policies,  procedures  and  systems  for   project  management,
               management  information,  safety,  preventive  maintenance  and
               inventory  control  applicable  to  the drilling  and  topsides
               systems of the Drilling Unit.

            D. Assistance  in the  recruitment  of  qualified and  experienced
               drilling personnel for the Drilling Unit by the Company and for
               the  training of  drilling  personnel  to  be assigned  to  the
               Drilling Unit.

            E. Project management, inspection and related technical assistance
               services  applicable to  the drilling  systems of  the Drilling
               Unit prior to delivery of the Drilling Unit from the shipyard.

      If Contractor is unable to  provide the services requested for  whatever
      reason, Contractor shall promptly advise Company of same in writing, and
      Contractor  will woe no  further obligation  to Company with  respect to
      those requested services.

      All  services provided by  Contractor under  this Agreement shall  be in
      conformance  with  good  and  accepted oilfield  practice  and  standard
      operating procedures and practices of the industry.

      2.    Personnel

      Contractor agrees  to provide, or cause  to be provided,  to the Company
all drilling and support personnel  in the categories set out in Exhibit  A to
this  Agreement, as may  be reasonably requested  by the Company  from time to
time, to assist the Company in connection with the construction, installation,
testing, commissioning and operation of  the drilling and topsides systems  of
the Drilling Unit, and in  order for the Company  to meet the requirements  of
any drilling contract  for the Drilling  Unit.  With  respect to the  Drilling
Contract,  Contractor agrees  to provide  at the  request of  the Company  the
drilling and support personnel set out in Appendix B of the Drilling Contract.

      3.    Remuneration

            A. In consideration of the  services being provided hereunder, the
            Company agrees to pay Contractor,  on a monthly basis in  arrears,
            the sum  not  to exceed  U.S.  $2,500 per  day commencing  on  the
            Commencement Date of  the Drilling Contract and continuing for the
            duration  of  the Drilling  Contract,  such  rate to  be  adjusted
            quarterly  based  on  changes  in  the  Consumer Price  Index,  as
            published in the Survey of  Current Business Bulletin by the  U.S.
            Department  of Labor, commencing  with the index  for the month of
            September, 1998.  The parties  agree to negotiate, in good  faith,
            adjustments to such rate based  on the level of drilling  services
            Contractor provides  to Company  as compared to  drilling services
            obtained by the Company from third parties.    

            B. The Company agrees to reimburse Contractor for:

               (1)  Any and  all payroll and payroll  burden costs incurred  by
                    Contractor in providing personnel  pursuant to the  Section
                    2 of  this Agreement  since June 1, 1996,  such payroll and
                    payroll   burden   costs   to   be   in   conformance  with
                    Contractor's  normal   accounting  practices  and  employee
                    benefits in effect from time to time;

               (2)  Any and  all third  party costs  incurred by  Contractor in
                    the procurement  of equipment,  materials, supplies,  spare
                    parts or personnel requested by the Company, including  all
                    relevant transportation, travel and insurance costs.

            C. As  additional  consideration  for  the  services  provided  in
               construction hereunder the  Company agrees to pay, on a monthly
               basis in arrears, to Contractor an amount  equal to one percent
               (1%) of  the  monthly revenues  accruing to  Company under  the
               Drilling   Contract  (excluding,  however,  amounts  for  which
               Company is entitled to cost reimbursement from Conoco under the
               terms of the Drilling Contract).

      4.    Payment

            A. The Company shall pay all amounts due  to Contractor under this
               Agreement by  wire transfer,  in freely  available funds,  to a
               bank to be designated by Contractor in               ,         
                     for credit to Contractor's account.

            B. All such  amounts shall  be paid  within twenty  days following
               receipt  by  the  Company  of  monthly  invoices  supported  by
               reasonable documentation.  All amounts not paid when  due shall
               earn interest  until paid at the  rate of 50 basis  points over
               the 3 month LIBOR in effect, from time to time, as published in
               the "Wall Street Journal".

      5.    Confidential Information

            Any  proprietary or confidential  information, documents, manuals,
      systems,  designs,  drawings  or  other  like   or  unlike  material  or
      information made  available to the Company by  Contractor is for the use
      only  by  the Company  for  use  with the  services  to  be provided  by
      Contractor pursuant to  this Agreement and shall be so designated at the
      time of disclosure.  Title to all such material and information shall at
      all times  be in Contractor, and  the Company shall not  have any rights
      with respect to such material and information except the use provided by
      this Agreement.  During  the term of  this Agreement and thereafter  for
      five  years after the  expiration or earlier  termination thereof or the
      date  of  disclosure  of such  information,  whichever  is earlier,  the
      Company will not permit the use of any such information by a third party
      and will at all  times keep it  in the strictest  confidence.  Upon  the
      expiration  or earlier termination of  this Agreement, the Company shall
      return  to Contractor  all  such material  received  from Contractor  or
      prepared by  Contractor  pursuant to  this Agreement  and shall  neither
      retain  any  copy  of  such   material  nor  thereafter  use  any   such
      information.  It is expressly agreed  that the obligation of the Company
      under this section will continue  and survive any expiration or  earlier
      termination  of this  Agreement, provided  that  this section  shall not
      apply to information which is:

            A. Contained in a publication of general circulation;

            B. Disclosed in  good faith by  a third party not  in privity with
               the party  originally disclosing  such information which  has a
               bona fide right to disclose such information; or

            C. Information substantially acquired  or developed for,  or from,
               the operations or maintenance of the Drilling Unit;

      save that the Company shall  be entitled, after reasonable prior  notice
      to Contractor, to disclose any such confidential information, report  or
      document: -

           (a)     in  connection with  any proceedings  arising out of  or in
                   connection with this  Agreement to the extent necessary  to
                   protect its interests;

           (b)     to any prospective assignee of any interest in the  Company
                   subject   to  it   obtaining   an  undertaking   from  such
                   prospective assignee in the terms of this section;

           (c)     if required to do so by an order  of any court of competent
                   jurisdiction;

           (d)     in pursuance  of any procedure  for discovery of  documents
                   in any proceedings before any such court;

           (e)     pursuant to  any law or regulation  having the force of law
                   or any national stock exchange requirement;

           (f)     pursuant  to  a  requirement  of  any  authority  being  an
                   authority  with whose requirement, of the nature and to the
                   extent in question, it is accustomed to comply; or

           (g)     to  the technical or legal advisers of  the Company subject
                   to it  obtaining an undertaking from  such advisers in  the
                   terms of this section;

      and  the Company  shall  be entitled  so  to disclose  or  use any  such
      information,  report or  document if  the information  contained therein
      shall have emanated  in conditions free  from confidentiality bona  fide
      from some person  other than Contractor  or the agent of  Contractor and
      such party would, but for the preceding  provisions of this sub-section,
      be  free so to disclose or use the same; provided that the Company shall
      use all reasonable  endeavors to avoid disclosure to any  third party in
      accordance with sub-sections (c) (d) (e) and (f) above.

      6.    Term

            A. This Agreement shall remain  in effect until the  expiration or
               earlier  termination of  the  Drilling Contract,  as it  may be
               amended   or  extended  from   time  to  time,   and  shall  be
               automatically  renewed on  an  annual  basis thereafter  unless
               either  party gives  six months'  prior written  notice of  its
               intention to terminate this  Agreement or renegotiate its terms
               to the other party.  If such notice is given, the parties agree
               to meet promptly and discuss in good  faith such termination or
               renegotiation, as the case may  be, and if mutual agreement  is
               not reached regarding same, this Agreement may be terminated by
               either  party,  effective upon  expiration  of  such six  month
               period.

            B. In case  of termination of this Agreement,  Contractor shall be
               entitled to  any payments with respect to services performed or
               costs or expenses incurred prior to such termination.

            C. If  either party materially defaults in  the fulfillment of any
               obligation   under    this    Agreement   without    reasonable
               justification  therefor,  the other  party  will  not have  any
               further obligation to fulfil its obligations until such default
               has been cured.  If such default continues for a period of more
               than 30 days, the non-defaulting party shall have the option to
               terminate this Agreement, without prejudice to any other rights
               it may have.

      7.    Taxes

            The  remuneration  payable under  Sections  3.A and  3.B  has been
      calculated on the  basis that Contractor will be liable  for all federal
      and state  income and franchise taxes on the profits arising to it under
      this Agreement  but no other taxes.   Any and all such  other taxes that
      may be  imposed by  any governmental  authority  shall be  borne by  the
      Company.

      8.    Assignment

            Neither party shall assign or transfer any of its right, title  or
      interest in or to this Agreement (except to a successor to substantially
      all  of such  party's business  or to  a corporation  owned by  or under
      common ownership with such party which agrees  to assume all obligations
      of  such party, provided  that the assigning party  shall not thereby be
      released  from  its obligations  hereunder)  without  the prior  written
      consent  of the other party, and any  such attempt to assign or transfer
      without such consent shall have  no effect.  Contractor may  subcontract
      for  any services requested  by the Company  hereunder, provided Company
      has approved any such subcontract, such approval  not to be unreasonably
      withheld.

      9.    Notices

            Any  notice  or  other  communication  for  which  this  Agreement
      provides  shall be in  writing and  will be  delivered to  the addressee
      thereof  or  sent  to  the  address  thereof  by   electronic  facsimile
      communication  or  by  registered  or  certified  mail,  return  receipt
      requested, or by other method which will constitute adequate evidence of
      delivery, as follows:

               If to the Company:

                    Deepwater Drilling L.L.C.
                    901 Threadneedle, Suite 200
                    Houston, Texas  77079

                    Attention:  Manager


               If to Contractor:

                    Reading & Bates Drilling Co.
                    901 Threadneedle, Suite 200
                    Houston, Texas  77079

                    Attention:  Manager

      or addressed  at such other  address as the  addressee thereof  may have
      designated for that purpose by  written notice given as above  provided.
      Any notice given in conformance  with this clause will be  considered as
      received for all purposes on the date of delivery.

      10.   Governing Law

            This  Agreement shall be  governed by and  construed in accordance
      with the laws of Texas an the parties hereto submit to the non-exclusive
      jurisdiction of the federal and state courts in Harris County, Texas.

      11.   Consequential Damages

            In no  event shall either party to this Agreement be liable to the
      other  party for loss  of profits or  other incidental, consequential or
      special damages.

      12.   Indemnity

            A. Contractor agrees  to defend,  indemnify and hold  harmless the
               Company, to the extent the Company is  not insured or otherwise
               indemnified, for  all losses, claims,  liabilities, obligations
               or  the like  incurred  by the  Company  or any  member in  the
               Company  either directly  or through  the Company  arising from
               Contractor's  failure  to  perform  its  obligations  hereunder
               according  to good oil  field practice and  consistent with the
               standard operating procedures  and practices  of the  industry,
               whether  such obligations  are  to be  performed  by itself  or
               through  an  affiliate  or  sub-contractor  appointed   by  it.
               Further,  it is  agreed  that Contractor's  liability, if  any,
               under  this  paragraph  shall  not  in  any  event exceed  U.S.
               $100,000.00 per  occurrence, not  to exceed U.S.  $1,000,000 in
               any one year.

            B. Notwithstanding  the  foregoing  it is  agreed  that Contractor
               shall have  no liability  to  the Company  for pollution,  well
               control costs, reservoir or underground damage or loss of hole,
               regardless of  how caused, including,  but not limited  to, the
               sole, joint  or concurrent  negligence, recklessness  or wilful
               misconduct of Contractor, its employees or sub-contractors.

      13.   Additional Insured and Waiver of Subrogation

            The  Company agrees to  cause the relevant  insurance policies and
      cover  notes being  maintained  at the  expense of  the Company  for the
      benefit of both parties to include both parties as named insureds and to
      cause the  interested underwriters  to waive  all rights  of subrogation
      against the parties hereto.

      14.   Force Majeure

            The  obligations (other  than  any obligations  to  pay money)  of
      either party to the Agreement shall  be suspended (and failure to  carry
      out the same  shall not constitute  a breach of  this Agreement) to  the
      extent,  and  during  the  period, that  such  party  is  prevented from
      carrying out  is obligations by virtue  of any act or  event outside the
      reasonable control of that party.

15.  Amendment

This Agreement may be amended, from time to time, only by mutual  agreement of
the parties in writing. 

      IN WITNESS WHEREOF, the parties thereto have caused this Agreement to be
executed by its duly authorized representatives in Houston, Texas on          
        , 1996.

                                    READING & BATES DRILLING CO.



                              By:                               

                              Its:                              


                                    DEEPWATER DRILLING L.L.C.



                              By:                              

                              Its:                               




             EXHIBIT "H" - CONSTRUCTION FINANCING CREDIT AGREEMENT

                               CREDIT AGREEMENT

                    DATED AS OF ____________________, 1996

                                    BETWEEN

                           DEEPWATER DRILLING L.L.C.

                                      AND

                                  CONOCO INC.


                               TABLE OF CONTENTS


RECITALS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1

I.    DEFINITIONS; CERTAIN TERMS  . . . . . . . . . . . . . . . . . . . . .  2

II.   THE LOANS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
      2.01  The Vessel Loans  . . . . . . . . . . . . . . . . . . . . . . .  6
            (a)     Making the Vessel Construction Loans  . . . . . . . . .  6
            (b)     Interest; Vessel Capitalized Interest . . . . . . . . .  7
            (c)     Construction Financing  . . . . . . . . . . . . . . . .  8
            (d)     Repayment; Vessel Note  . . . . . . . . . . . . . . . .  9
            (e)     Prepayments . . . . . . . . . . . . . . . . . . . . . .  9
            (f)     Use of Proceeds . . . . . . . . . . . . . . . . . . . . 10
            (g)     Termination of Vessel Commitment  . . . . . . . . . . . 10
      2.02  Payments and Computations . . . . . . . . . . . . . . . . . . . 10
      2.03  Maximum Amount of Loans . . . . . . . . . . . . . . . . . . . . 12
      2.04  Grant of Security Interest  . . . . . . . . . . . . . . . . . . 12

III.  CONDITIONS OF LENDING . . . . . . . . . . . . . . . . . . . . . . . . 12
      3.01  Conditions Precedent to the Initial Loan  . . . . . . . . . . . 12
            (a)     Delivery of Documents . . . . . . . . . . . . . . . . . 12
            (b)     Proceedings; Receipt of Documents . . . . . . . . . . . 13
      3.02  Conditions Precedent to All Loans . . . . . . . . . . . . . . . 13
            (a)     Representations and Warranties; No Event of Default . . 13
            (b)     Legality  . . . . . . . . . . . . . . . . . . . . . . . 13
            (c)     Borrowing Notice  . . . . . . . . . . . . . . . . . . . 14
            (d)     Delivery of Documents . . . . . . . . . . . . . . . . . 14

IV.   REPRESENTATIONS AND WARRANTIES  . . . . . . . . . . . . . . . . . . . 14
      4.01  Representations and Warranties of the Borrower  . . . . . . . . 14
            (a)     Organization, Good Standing, Etc. . . . . . . . . . . . 14
            (b)     Authorization, Etc. . . . . . . . . . . . . . . . . . . 14
            (c)     Governmental Approvals  . . . . . . . . . . . . . . . . 15
            (d)     Enforceability of Loan Documents  . . . . . . . . . . . 15
            (e)     No Material Adverse Change  . . . . . . . . . . . . . . 15
            (f)     Litigation, Labor Controversies, Etc. . . . . . . . . . 15
            (g)     Subsidiaries  . . . . . . . . . . . . . . . . . . . . . 16
            (h)     Ownership of Assets . . . . . . . . . . . . . . . . . . 16

V.    COVENANTS OF THE BORROWER . . . . . . . . . . . . . . . . . . . . . . 16
      5.01  Affirmative Covenants . . . . . . . . . . . . . . . . . . . . . 16
            (a)     Reporting Requirements  . . . . . . . . . . . . . . . . 16
            (b)     Preservation of Existence, Etc. . . . . . . . . . . . . 17
            (c)     Obtaining of Permits, Etc.  . . . . . . . . . . . . . . 18
            (d)     Keeping of Records and Books of Account . . . . . . . . 18
            (e)     Compliance with Laws, Etc.  . . . . . . . . . . . . . . 18
            (f)     Insurance . . . . . . . . . . . . . . . . . . . . . . . 18
      5.02  Negative Covenants  . . . . . . . . . . . . . . . . . . . . . . 18
            (a)     Construction Contract . . . . . . . . . . . . . . . . . 18
            (b)     Liens,  Etc.  . . . . . . . . . . . . . . . . . . . . . 19
            (c)     Indebtedness  . . . . . . . . . . . . . . . . . . . . . 19

VI.   EVENTS OF DEFAULT . . . . . . . . . . . . . . . . . . . . . . . . . . 19
      6.01  Events of Default . . . . . . . . . . . . . . . . . . . . . . . 19
            (a)     Payment Default . . . . . . . . . . . . . . . . . . . . 19
            (b)     Breach of Warranty  . . . . . . . . . . . . . . . . . . 20
            (c)     Judgments . . . . . . . . . . . . . . . . . . . . . . . 20
            (d)     Bankruptcy, Insolvency, Etc.  . . . . . . . . . . . . . 20
            e) Impairment of Security, Etc. . . . . . . . . . . . . . . . . 21
      6.02  Action if Bankruptcy  . . . . . . . . . . . . . . . . . . . . . 21

VII.  MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
      7.01  Notices, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . 22
      7.02  Amendments, Etc.  . . . . . . . . . . . . . . . . . . . . . . . 22
      7.03  No Waiver; Remedies, Etc. . . . . . . . . . . . . . . . . . . . 23
      7.04  Severability  . . . . . . . . . . . . . . . . . . . . . . . . . 23
      7.05  Successors and Assigns  . . . . . . . . . . . . . . . . . . . . 23
      7.06  Counterparts  . . . . . . . . . . . . . . . . . . . . . . . . . 24
      7.07  Indemnification . . . . . . . . . . . . . . . . . . . . . . . . 24
      7.08  Submission to Jurisdiction  . . . . . . . . . . . . . . . . . . 25
      7.09  Headings  . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
      7.10  Governing Law . . . . . . . . . . . . . . . . . . . . . . . . . 27
      7.11  Application of Refunds and Payments under
               Korean Bank Guarantees . . . . . . . . . . . . . . . . . . . 27
      7.12  No Recourse . . . . . . . . . . . . . . . . . . . . . . . . . . 28
      7.13  Waiver of Jury Trial  . . . . . . . . . . . . . . . . . . . . . 28
      7.14  Payment of Costs and Expenses . . . . . . . . . . . . . . . . . 28


Exhibits
Exhibit A   Form of  Promissory Note
Exhibit B   Form of Borrowing Request


                               CREDIT AGREEMENT


CREDIT  AGREEMENT  dated as  of  __________________,  1996, between  Deepwater
Drilling L.L.C., a  Delaware limited liability company,  (the "Borrower"), and
Conoco Inc., a corporation  organized under the laws of the  State of Delaware
("Conoco").

                                   RECITALS

The Borrower  is a  Delaware limited  liability company  whose members are  RB
Deepwater  Exploration Inc.,  a Nevada  corporation,  ("Reading &  Bates") and
Conoco  Development Company ("CDC").   The Borrower  has entered  into or will
enter into  a construction  contract (the  "Vessel Construction  Contract," as
more fully defined herein) with Samsung Co., Ltd. and Samsung Heavy Industries
Co.,  Ltd., each a  Korean corporation,  (collectively the "Builder")  for the
construction  of a  drillship  with top  sides (the  "Vessel,"  as more  fully
defined herein).  Under the Vessel Construction  Contract, Borrower is or will
be obligated  to make certain  payments to  the Builder.  Further, during  the
construction  of the  Vessel, Borrower  may purchase  certain equipment  to be
integrated  into or  installed on  the Vessel  ("BFE,"  as more  fully defined
herein) and  may  be required  to  pay certain  amounts  for  the BFE.  It  is
Borrower's  intention   to  seek  construction  financing   from  third  party
commercial  lenders to fund the payments  that will be required to be made  to
the Builder or which  may be necessary for the purchase of  BFE, but under the
Vessel Construction Contract, certain amounts will be due to the Builder prior
to Borrower  completing the  contemplated construction financing  and Borrower
may  also need  to purchase BFE  prior to  the completion  of the construction
financing.  

The  Borrower has  asked Conoco  to   make term  loans to  the Borrower  in an
aggregate principal  amount not  to exceed $85,000,000  (including capitalized
interest in an aggregate principal amount not to exceed $___________________),
the proceeds of which are to be used to  pay a portion of the costs due to the
Builder under the  Vessel Construction Contract  prior to  the delivery of the
Vessel  and/or to purchase BFE.  Conoco is willing to make  such term loans to
the  Borrower on the terms and conditions hereinafter set forth.  Accordingly,
the Borrower and Conoco hereby agree as follows:

I.    DEFINITIONS; CERTAIN TERMS

      Definitions
      As used in this Agreement, the following terms shall have the respective
      meanings indicated below, such meanings to be applicable equally to both
      the singular and plural forms of such terms:

      "BFE"   means the buyer furnished equipment  that Borrower is to provide
      under the terms of the Vessel Construction Contract.

      "Borrower" has the meaning specified therefor in the preamble hereto.

      "Borrowing Date" means each date on which a Loan is made hereunder.

      "Builder" has the meaning specified therefor in the preamble hereto.

      "Business Day" means  a day on which commercial banks  in Houston, Texas
      and  New York City, New York  are not required  or authorized  by law to
      close.

      "Capitalized Interest Commitment" means the commitment of Conoco to make
      the  Vessel Capitalized  Interest  Loans  to  the Borrower  pursuant  to
      Sections  2.01(b)  and 2.02(b)  hereof,  respectively,  in an  aggregate
      principal   amount  at   any   one  time   outstanding  not   to  exceed
      $___________________.

      "Closing  Date"  means  the  date  on which  the  initial  Loan  is made
      hereunder.

      "Commitment"  means   the  Vessel  Construction     Commitment  and  the
      Capitalized Interest Commitment.

      "Conoco" has the meaning specified therefor in the preamble hereto.

      "Construction Financing" means  the financing Borrower will put in place
      on or  prior to  October  10, 1997,  (i) to repay  the amounts  borrowed
      hereunder,  along with interest,  and (ii) to  finance other  amounts in
      connection with the construction of the Vessel.

      "Default"  means any condition  or event  which constitutes an  Event of
      Default or  which with  the giving of  notice or lapse  of time  or both
      would constitute an Event of Default.

      "Default  Rate" means, for  any day, a  rate per annum equal  to the Six
      Month LIBOR Rate plus 3%.

      "Dollars" and the  symbol "$" means  the lawful currency  of the  United
      States of America.

      "Event of Default"  means any of  the events set  forth in Section  6.01
      hereof.

      "GAAP" means generally  accepted accounting principles  as in effect  in
      the United States from time to time.

      "Governmental  Authority"  means  the  United  States  or  any  state or
      political  subdivision  thereof  or  any  foreign  nation  or  political
      subdivision thereof, any entity, body or authority exercising executive,
      legislative,  judicial, regulatory  or administrative  functions of,  or
      pertaining  to,  government  in  the  United  States  (or any  state  or
      political  subdivision thereof) or  any foreign nation  or any political
      subdivision thereof, including, without  limitation, any central bank or
      other  governmental or  quasi-governmental authority  exercising control
      over banks or other financial institutions, and any corporation or other
      entity  or authority  owned  or  controlled  (through stock  or  capital
      ownership or otherwise) by any of the foregoing.

      "Interest  Period"  means, with  respect  to each  Loan,  (a) the period
      commencing  on  the Borrowing  Date  for such  Loan  and  ending on  the
      numerically  corresponding  date  six  months thereafter,  and  (b) each
      subsequent period beginning on the last day of the immediately preceding
      Interest Period  and ending  on the  numerically corresponding  date six
      months thereafter , provided that:

           (i)     if any  Interest Period  would otherwise end on  a day that
                   is  not a  Business  Day,  such Interest  Period  shall  be
                   extended  to the immediately following Business Day (unless
                   such immediately following  Business Day  falls in  another
                   calendar month,  in which case  such Interest Period  shall
                   end on the immediately preceding Business Day); and

           (ii)    any  Interest Period  that begins on the  last Business Day
                   of a  calendar month shall end  on the last Business Day of
                   the corresponding sixth calendar month thereafter.

      "Korean Bank"  means the Bank of Seoul.

      "Korean Bank Guarantee" means the  Letter of Refundment Guarantee to  be
      issued by the Bank of Seoul, with respect to the Construction Contract.

      "Lien or Liens" means  any mortgage, pledge, lien,  charge, encumbrance,
      lease,   right,  security   interest,   libel,  restriction,   covenant,
      assessment,  rights in rem  of any kind  or claim of  whatever nature or
      description.

      "Loan" means one of the Vessel  Loans.

      "Loan Documents" means this Agreement, the Vessel  Note and the Security
      Agreements.

      "Loan  Maturity Date"  means  the earlier  of  (i) October 10, 1997,  or
      (ii) the date on  which Borrower has obtained Construction  Financing as
      contemplated by Section 2.01(c).

      "Loan  Termination Date" means  the Loan  Maturity Date or  such earlier
      date  on which  the Vessel Construction  Commitment and  the Capitalized
      Interest Commitment with respect to the Vessel Loans shall be terminated
      pursuant to Section 2.01(e), Section 2.01(g) or Section 6.01 hereof.

      "Maturity Dates" means the Loan Maturity Date.

      "Notice of  Borrowing"  means a  notice, substantially  in  the form  of
      Exhibit B hereto, or, if given by telephone,  specifying the matters set
      forth in such Exhibit B, and followed promptly by a notice substantially
      in  the form  of  such  Exhibit, delivered  by  the  Borrower to  Conoco
      pursuant to Section 2.01(a)  hereof.

      "Obligations"  means (i) the obligation  of the Borrower  to pay, as and
      when  due   and  payable  (upon  scheduled   maturity,  acceleration  or
      otherwise), all amounts  from time to time owing by it in respect of any
      Loan  Document,  whether  for  principal, interest,  fees,  expenses  or
      otherwise, and (ii) the obligation of the Borrower to perform or observe
      all of its other obligations  from time to time existing under  any Loan
      Document.

      "Person" means  an  individual, corporation,  partnership,  association,
      joint-stock  company,   trust,   unincorporated  organization,   limited
      liability  company, joint  venture  or governmental  authority or  other
      regulatory body.

      "Security Agreements" has the meaning specified in Section 2.04 hereof.

      "Six Month LIBOR Rate" means the  six month LIBOR rate as quoted in  the
      Wall Street Journal Money Rate Section on the  date of funding or on the
      date of  determination thereof  (or if  the Wall Street  Journal is  not
      published  on that day,  on the  first publishing day  thereafter), such
      interest to be  calculated for the actual number of  days elapsed on the
      basis of a 360 day year; provided that if no such rates are published in
      the Wall Street Journal then the Borrower and Conoco shall  negotiate in
      good faith to agree upon an alternative note.

      "Termination Date" means the Loan Termination Date.

      "Vessel"  means  the   Vessel  being  built   pursuant  to  the   Vessel
      Construction Contract.

      "Vessel Capitalized Interest Loan" has the meaning specified therefor in
      Section 2.01(b)(ii) hereof.

      "Vessel Construction Commitment" means the commitment of Conoco to  make
      Vessel Construction  Loans to the  Borrower pursuant to  Section 2.01(a)
      hereof in an aggregate principal amount at any one time outstanding  not
      to exceed $_____________________.

      "Vessel Construction Contract" means the  Contract that may or has  been
      entered  into  between Borrower  and  the  Builder,  providing  for  the
      construction and the purchase and sale of a drillship designated as Hull
      No. 1220, as amended or otherwise modified in  accordance with the terms
      hereof.

      "Vessel Construction Loan" means any loan made by Conoco to the Borrower
      pursuant to Section 2.01(a).

      "Vessel  Loans"  means the  Vessel  Construction  Loans  and the  Vessel
      Capitalized Interest Loans.

      "Vessel Note" means a promissory note of  the Borrower, substantially in
      the form of Exhibit A hereto, evidencing the  obligation of the Borrower
      to repay  the Vessel Loans, as  such promissory note may  be modified or
      extended from time to time,  and any promissory note or notes  issued in
      exchange or replacement therefor.


II.   THE LOANS

      2.01  The Vessel Loans
            (a)     Making the Vessel Construction Loans
               Conoco  agrees, on  the  terms and  conditions hereinafter  set
               forth, to make  Vessel Construction Loans to  the Borrower from
               time  to time  during the  period from the  date hereof  to but
               excluding the  Loan Termination Date in  an aggregate principal
               amount at any one time outstanding  not to exceed the amount of
               the Vessel Construction  Commitment.  Each  Vessel Construction
               Loan shall  be in an  amount which is not  less than $1,000,000
               and is  an  integral multiple  of $100,000  and  shall be  made
               pursuant to an irrevocable Notice of Borrowing delivered by the
               Borrower to Conoco not  later than 12 noon (New York City time)
               on the third  Business Day prior to the Borrowing  Date of such
               proposed Loan.  On the  Borrowing Date specified in the  Notice
               of Borrowing and upon  fulfillment of the applicable conditions
               set forth in Section III hereof, Conoco will make the requested
               Vessel  Construction   Loan  available   to  the  Borrower   in
               immediately available funds  in U.S. Dollars by,  at the option
               of  Conoco,  either  (i) crediting  the  Borrower's  designated
               account  or  (ii)  remitting   on  Borrower's  behalf,  and  in
               accordance  with Borrower's  written notification,  amounts due
               the Builder  or Persons  from whom  the Borrower  is purchasing
               BFE. 

            (b)     Interest; Vessel Capitalized Interest
               (i)     The Borrower will pay interest on  the unpaid principal
                       amount  of each  Vessel Loan,  from  and including  the
                       first day  of the  Interest Period for  such Loan until
                       such  principal amount shall  be paid  in full,  at the
                       rate  per  annum  at all  times  during  each  Interest
                       Period for such Loan equal to the six month  LIBOR Rate
                       in  effect two business days  prior to the first day of
                       such  Interest  Period,  plus  1%   for  such  Interest
                       Period.

               (ii)    Interest accruing on  the Vessel Loans shall  be due on
                       the last  day of each Interest  Period and,  subject to
                       the  terms   and  conditions   hereinafter  set   forth
                       (including, without  limitation, Section  3.02 hereof),
                       prior  to the  Loan  Termination  Date shall  be  added
                       (each  such  addition  herein  a  "Vessel   Capitalized
                       Interest Loan") to  the principal amount of  the Vessel
                       Loans on  the last  day of each Interest  Period and on
                       the date  on which  such Loan ceases  to bear interest,
                       provided  that the  aggregate principal  amount of  the
                       Vessel Capitalized Interest  Loans during  the term  of
                       this  Agreement shall  not  exceed  the amount  of  the
                       Capitalized   Interest   Commitment.      Each   Vessel
                       Capitalized  Interest Loan  shall  constitute a  Vessel
                       Loan  and  shall   bear  interest  in  accordance  with
                       Section 2.01(b)(i)  hereof.  The  Borrower will pay  on
                       demand by  Conoco any  accrued interest  on the  Vessel
                       Loan (1) due  on the  date specified  above if  on such
                       date  the   Borrower  shall  not  have   fulfilled  the
                       conditions precedent  set forth in Section 3.02 hereof,
                       (2) to  the  extent that  such  accrued interest  would
                       cause  the  aggregate principal  amount  of  all Vessel
                       Capitalized Interest Loans to exceed the  amount of the
                       Capitalized  Interest   Commitment,  (3) on   the  Loan
                       Maturity Date  and (4) accruing  on or  after the  Loan
                       Termination Date with  respect to all amounts  not paid
                       on or before the Loan Termination Date. 

               (iii)   Any  amount  of   principal  of  and,  to   the  extent
                       permitted by  law, interest  on a  Vessel Loan that  is
                       not  paid when  due  (whether  at stated  maturity,  by
                       acceleration or  otherwise) shall  bear interest,  from
                       the date on which such amount is due until  such amount
                       is paid  in  full, payable  on demand,  at a  rate  per
                       annum equal at all times to  the Default Rate; provided
                       that  the rate  of interest  payable  pursuant to  this
                       clause (iii) shall  never exceed  the rate  of interest
                       that Conoco  is permitted to  charge and receive  under
                       laws applicable to  Conoco limiting  rates of  interest
                       that may be charged or collected.

            (c)     Construction Financing
               Borrower agrees it will  seek and obtain Construction Financing
               prior to  October 10, 1997,  and through the  proceeds obtained
               from such  Construction Financing, Borrower agrees  to repay to
               Conoco all amounts due hereunder, provided that the failure  of
               the Borrower  to obtain Construction Financing  will not effect
               the  obligation  of  the  Borrower to  repay  all  amounts  due
               hereunder no later  than October 10, 1997,  as provided for  in
               Section 2.01 (d) and Borrower's obligation to repay all amounts
               due   hereunder  and  under  the  Vessel  Note  no  later  than
               October 10, 1997, is absolute.


            (d)     Repayment; Vessel Note

               (i)     The Borrower  will  repay the  unpaid principal  amount
                       of, and all  accrued and  unpaid interest  on, and  all
                       fees  or expenses due in  respect of,  the Vessel Loans
                       on the Loan  Termination Date.  The  obligation of  the
                       Borrower to repay  the Vessel Loans shall  be evidenced
                       by a single Vessel Note payable to the order  of Conoco
                       in a principal amount equal to $_________________.

               (ii)    Conoco shall record,  and prior to any transfer  of the
                       Vessel Note  shall endorse on  the schedules forming  a
                       part  thereof appropriate  notations  to evidence,  the
                       date and amount of the Vessel Loans made  by it and the
                       date and amount  of each payment of  principal made  by
                       the  Borrower  with  respect   to  the  Vessel   Loans,
                       provided that  the failure  of Conoco to  make any such
                       recordation  or  endorsement  shall   not  affect   the
                       obligations of  the  Borrower  hereunder or  under  the
                       Vessel Note.  Conoco is hereby   irrevocably authorized
                       by  the  Borrower to  endorse  the Vessel  Note and  to
                       attach  to  and  make  a  part  of the  Vessel  Note  a
                       continuation  of   any  such  schedule   as  and   when
                       required.

            (e)     Prepayments
               (i)  Mandatory Prepayments
                       The  Borrower  will  prepay   the  aggregate  principal
                       amount  of  the  outstanding  Vessel  Loans  in  whole,
                       together with all accrued  and unpaid interest  thereon
                       within  60  days   after  any  date  when   the  Vessel
                       Construction Contract  shall  have been  terminated  or
                       rescinded.

               (ii)    Optional Prepayments
                       The  Borrower may,  upon at  least  three (3)  Business
                       Days'  prior  written notice  to  Conoco  (which notice
                       shall  be  irrevocable),  prepay  the Vessel  Loans  in
                       whole (but not in part), together with  all accrued and
                       unpaid interest thereon.

               (iii)   In General

                       No amount  prepaid may be  reborrowed by the  Borrower.
                       Further,  there   will   be  no   premium  or   penalty
                       applicable to any prepayment.

            (f)     Use of Proceeds
               The  Borrower will use the proceeds  of the Vessel Construction
               Loans solely (i) to  fund the First Installment payable  to the
               Builder  as defined  and described  in the  Vessel Construction
               Contract, and (ii) to finance the acquisition of BFE.

            (g)     Termination of Vessel Commitment
               (i)     Borrower  shall have  the right,  upon  at least  three
                       Business   Days'  notice  to  Conoco, to  terminate  in
                       whole  or  reduce in  part  the unused  portion of  the
                       Vessel Construction Commitment.

               (ii)    On the  date a  prepayment is  made or  required to  be
                       made  pursuant  to  Section  2.01  hereof,  the  Vessel
                       Construction Commitment shall be terminated.

      2.02  Payments and Computations
           (a)     The Borrower  will make  each payment  hereunder and  under
                   the  Vessel  Note not  later  than  12 noon (New  York City
                   time)  on  the  day when  due  in  Dollars  and immediately
                   available    funds     to    Conoco's     Account    Number
                   ___________________, Reference _______________,  maintained
                   by     _______________________________,    in    _________,
                   ___________, ABA  Number _____________.   Any payment  made
                   by the  Borrower hereunder or under  the Vessel Note  after
                   12 noon (New  York City time) shall  be deemed to have been
                   made on the next succeeding Business Day.  

           (b)     All computations  of interest shall  be made  by Conoco  on
                   the basis of  a year of 360 days  for the actual number  of
                   days (including  the first day  but excluding the last day)
                   occurring  in  the  period  for  which  such  interest   is
                   payable.  Each determination by Conoco  of an interest rate
                   hereunder shall be conclusive and binding for all  purposes
                   in the absence of manifest error.

           (c)     Whenever any  payment hereunder, under  the Vessel Note  or
                   under any other Loan Document shall be stated to  be due on
                   a day  other than  a Business  Day, such  payment shall  be
                   made  on  the  next  succeeding  Business  Day,  and   such
                   extension of  time shall  in such case  be included in  the
                   computation of the payment  of interest; provided, however,
                   if such  extension would cause payment  of principal of  or
                   interest  on  a  Loan  to be  made  in  the next  following
                   calendar  month, such  payment  shall be  made on  the next
                   preceding Business Day.

           (d)     All payments by the Borrower of principal of, and  interest
                   on,  the  Vessel  Loans  and  all  other  amounts   payable
                   hereunder  shall be  made  free  and clear  of and  without
                   deduction for any  present or future income, excise,  stamp
                   or  franchise   taxes  and   other  taxes,  fees,   duties,
                   withholdings  or other  charges  of any  nature  whatsoever
                   imposed  by any  taxing  authority, but  excluding Conoco's
                   franchise  taxes  and  taxes  imposed  on  or  measured  by
                   Conoco's net  income or  receipts (such  non-excluded items
                   being called "Taxes").

      2.03  Maximum Amount of Loans
            Notwithstanding anything herein to the contrary, Conoco shall have
            no  obligation to make  a Vessel Loan  if the making  of such Loan
            would  cause the  aggregate  outstanding principal  amount of  all
            Vessel Loans to exceed $85,000,000.

      2.04  Grant of Security Interest
            As  security for the  repayment of  all amounts due  hereunder and
            under the Vessel Note, the Borrower, Reading & Bates, and CDC have
            executed security  agreements (the "Security  Agreements") of even
            date  herewith  granting  to  Conoco  security  interests  in  the
            collateral described in the Security Agreements.

III.  CONDITIONS OF LENDING

      3.01  Conditions Precedent to the Initial Loan
            The  obligation of Conoco to  make the initial  Loan is subject to
            the  fulfillment, in a  manner satisfactory to  Conoco, of each of
            the following conditions precedent.

            (a)     Delivery of Documents
               Conoco  shall have received  on or before  the Closing Date the
               following, each  in form  and substance satisfactory  to Conoco
               and, other  than in the cases  of clauses (i) and  (ii) of this
               Section 3.01(a), dated the Closing Date:

               (i)     the Vessel Note duly executed by the Borrower;

               (ii)    such agreements,  certificates,  members committee  and
                       board resolutions  of  the  Borrower and  the  members,
                       opinions, instruments  and  other documents  as  Conoco
                       may reasonably require in connection with  the Loan and
                       the giving  of security  interests as  provided for  in
                       Section 2.04; and

               (iii)   such   other   agreements,    certificates,   opinions,
                       instruments  and   other  documents   relating  to  the
                       transactions contemplated  by  this  Agreement  as  may
                       have been  reasonably requested  by Conoco  (including,
                       without limitation,  all documents  referred to  herein
                       and not  appearing as  exhibits hereto)  and all  legal
                       matters  in connection with  such transactions shall be
                       satisfactory in form and substance to Conoco.

            (b)     Proceedings; Receipt of Documents
               All  proceedings in connection  with the making  of the initial
               Loan and the other transactions contemplated by this Agreement,
               and  all documents  incidental  thereto,  shall  be  reasonably
               satisfactory to Conoco and its  special counsel, and Conoco and
               such special  counsel shall have received  all such information
               and such counterpart originals or certified or other  copies of
               such documents as Conoco or such special counsel may reasonably
               request.

      3.02  Conditions Precedent to All Loans
            The obligation of Conoco to  make any Loan (including the  initial
            Loan) is subject to the  fulfillment, in a manner satisfactory  to
            Conoco, of each of the following conditions precedent:

            (a)     Representations and Warranties; No Event of Default
               The following statements shall be  true (i) the representations
               and warranties contained in  Section 4.01 of this Agreement are
               correct on and as of such date as though made on and as of such
               date; and (ii) no Default or Event of  Default has occurred and
               is continuing or would result from the making of the Loan to be
               made on such date.

            (b)     Legality
               The making of  such Loan shall not contravene any  law, rule or
               regulation applicable to Conoco or to the Borrower.

            (c)     Borrowing Notice
               Conoco shall have received, at least three  Business Days prior
               to the  date  of each  Vessel Construction  Loan,  a Notice  of
               Borrowing  pursuant to Section 2.01(a)  hereof, with respect to
               such Loan.

            (d)     Delivery of Documents
               Conoco shall  have received  such  other certificates,  members
               committee  and  board  resolutions  of  the  Borrower  and  the
               members, opinions,  instruments and other documents relating to
               the  transactions contemplated  by this  Agreement as  may have
               been   reasonably  requested  by   Conoco  (including,  without
               limitation, all documents referred  to herein and not appearing
               as exhibits hereto) and all  legal  matters in connection  with
               such transactions  shall be satisfactory in  form and substance
               to the Conoco.


IV.   REPRESENTATIONS AND WARRANTIES

      4.01  Representations and Warranties of the Borrower
            (a)     Organization, Good Standing, Etc.
               The Borrower (i) is a limited liability company duly organized,
               validly  existing and in  good standing  under the laws  of the
               State of  Delaware, (ii) has all requisite  power and authority
               to  conduct its  business  as now  conducted  and as  presently
               contemplated,  to execute  and  deliver each  Loan Document  to
               which it is  a party, to  make the borrowings hereunder  and to
               consummate the  transactions contemplated hereby,  and (iii) is
               fully qualified to  do business and is in good standing in each
               of the states of  Delaware and Texas.

            (b)     Authorization, Etc.
               The execution, delivery and performance by the Borrower of each
               Loan Document  to  which it  is  a  party, (i) have  been  duly
               authorized by all  necessary limited liability  company action,
               (ii) do  not  and  will   not  contravene  its  Certificate  of
               Formation or its Limited Liability Company Agreement, any  law,
               rule, regulation, order, decree or any  contractual restriction
               or otherwise affecting it or any of its properties and (iii) do
               not and will not result in  or require the creation of any Lien
               (other  than Liens permitted  under Section 5.02)  upon or with
               respect to any of its properties.

            (c)     Governmental Approvals
               No authorization or approval or other action  by, and no notice
               to or  filing with, any United States governmental authority or
               United States   regulatory body is required  in connection with
               the due execution, delivery and performance  by the Borrower of
               any Loan Document  to which it is a party  except for such that
               have been obtained or made.

            (d)     Enforceability of Loan Documents
               Each  of this Agreement  and each other  Loan Document to which
               the Borrower is (or will be) a party, when delivered hereunder,
               is (or will  be), a legal, valid and  binding obligation of the
               Borrower, enforceable against  the Borrower in  accordance with
               its  terms,  except  as  such  enforcement may  be  subject  to
               bankruptcy,  insolvency,  moratorium   or  other  similar  laws
               affecting creditors' rights generally and to general principles
               of equity (whether asserted at law or in equity).

            (e)     No Material Adverse Change
               Since  October 28,  1996,  there has  been no  material adverse
               change   in  the   financial  condition,   operations,  assets,
               business, properties or prospects of the Borrower.

            (f)     Litigation, Labor Controversies, Etc.
               There is  no  pending or,  to the  knowledge  of the  Borrower,
               threatened litigation, action, proceeding, or labor controversy
               affecting the  Borrower or  any of its  properties, businesses,
               assets or  revenues, which may materially  adversely affect the
               financial  condition, operations, assets,  business, properties
               or  prospects of the  Borrower or which  purports to affect the
               legality, validity  or enforceability of this  Agreement or any
               other Loan Document.

            (g)     Subsidiaries
               As of the date hereof, the Borrower has no Subsidiaries.

            (h)     Ownership of Assets
               The Borrower  owns  good and  marketable title  to  all of  its
               properties  and  assets,  real   and  personal,  tangible   and
               intangible,   of  any  nature  whatsoever  (including  patents,
               trademarks, trade  names, service  marks and  copyrights), free
               and  clear  of  all  Liens (other  than  Liens  permitted under
               Section 5.02), charges or claims (including infringement claims
               with respect to patents,  trademarks, copyrights and the like).
               The Borrower  does  not own,  lease  or  operate, and  has  not
               previously owned,  leased or  operated, any facilities  or real
               property.


V.    COVENANTS OF THE BORROWER

      5.01  Affirmative Covenants
            So long as  any principal of or interest on  the Vessel Note shall
            remain unpaid or  Conoco shall have any  Commitment hereunder, the
            Borrower will, unless Conoco shall otherwise consent in writing:

            (a)     Reporting Requirements
               Furnish to Conoco:

               (i)     such  financial and  other information  as  Conoco from
                       time to time reasonably request; 

               (ii)    such  other  information  available  to  the   Borrower
                       concerning the Vessel or the Collateral  (as defined in
                       Security Agreement)  as Conoco  from time  to time  may
                       reasonably request.

               (iii)   promptly and  in any event  within three Business  Days
                       after the  occurrence of each  Default, a statement  of
                       an authorized  representative of  the Borrower  setting
                       forth details of  such Default and the action which the
                       Borrower has  taken and proposes  to take with  respect
                       thereto; and

               (iv)    promptly and  in any event  within three Business  Days
                       after  the Borrower  knows  or reasonably  should  have
                       known of (x) the occurrence of  any adverse development
                       with respect  to  any litigation,  action,  proceeding,
                       arbitration   or   labor   controversy   which    could
                       reasonably be expected to  materially adversely  affect
                       the  Borrower's   consolidated  business,   operations,
                       assets,  revenues,  properties  or  prospects or  which
                       could reasonably  be expected  to affect the  legality,
                       validity or  enforceability of  this  Agreement or  any
                       other  Loan Document or the  ability of the Borrower to
                       fulfill  its  obligations  under  the  Loan  Documents,
                       (y) the  commencement   of  any    labor   controversy,
                       litigation, action,  arbitration  or other  proceeding,
                       which  could   reasonably  be  expected  to  materially
                       adversely  affect the Borrower's consolidated business,
                       operations, assets,  revenues, properties  or prospects
                       or which  could reasonably  be expected  to affect  the
                       legality, validity or enforceability  of this Agreement
                       or  any  other  Loan  Document or  the  ability  of the
                       Borrower  to fulfill  its  obligations under  the  Loan
                       Documents,  or  (z) the  occurrence   of  any  material
                       adverse change in the financial condition,  operations,
                       assets,  business,   properties  or  prospects  of  the
                       Borrower, in the  Collateral or  in the ability  of the
                       Borrower to  perform their Obligations  under the  Loan
                       Documents,     notice   thereof  and   copies  of   all
                       documentation relating thereto.

            (b)     Preservation of Existence, Etc.
               Maintain and preserve its existence, rights and privileges, and
               remain  duly qualified and  in good  standing in the  states of
               Delaware and Texas.

            (c)     Obtaining of Permits, Etc.
               Take all reasonable action to obtain, maintain and preserve all
               permits, licenses, authorizations, approvals and accreditations
               which  are  necessary  in  the  United  States to  perform  its
               obligations under the Loan Documents.  

            (d)     Keeping of Records and Books of Account
               Keep  adequate  records and  books  of  account, with  complete
               entries  made in  accordance  with GAAP  consistently  applied,
               reflecting all of its financial transactions.

            (e)     Compliance with Laws, Etc.
               The Borrower  will  comply in  all material  respects with  all
               applicable laws, rules, regulations and orders.

            (f)     Insurance
               The  Borrower  will maintain  or  cause to  be  maintained with
               responsible insurance companies  insurance with respect  to its
               properties   and   business   against   such   casualties   and
               contingencies and  of  such types  and in  such  amounts as  is
               customary  in  the  case   of  similar  businesses  (and  which
               insurance shall name Conoco as  an additional insured and  loss
               payee  (except with  respect  to partial  losses not  exceeding
               $2,000,000  per occurrence,  provided  Borrower  uses the  such
               proceeds  to  repair  the  Vessel)  with  respect  to  tangible
               Collateral, if applicable,  and shall  contain endorsements  to
               such policies  providing that  such insurer will  notify Conoco
               not less than 30 days prior to the expiration or termination of
               such policies).

      5.02  Negative Covenants

            So  long as any principal of or  interest on the Vessel Note shall
            remain  unpaid or Conoco shall have  any Commitment hereunder, the
            Borrower will not, without the prior written consent of Conoco:

            (a)     Construction Contract
               Amend,  modify  or  supplement,  nor agree  to  any  amendment,
               modification  or supplement  of, any of  the provisions  of the
               Vessel Construction  Contract  (other than  change  orders  not
               exceeding $2,000,000 in any one year).

            (b)     Liens,  Etc.
               Create or  assume any Lien upon  or with respect to  any of the
               Vessel  or any other  property or asset  of the Borrower, other
               than Liens arising from the execution of the Loan Documents and
               Liens for taxes, assessments or governmental charges or levies,
               provided, that the Borrower is  not in default with respect  to
               its payment  obligations with  respect thereto  or  is in  good
               faith and by appropriate proceedings diligently contesting such
               obligations and adequate reserves  for the payment thereof have
               been established.

            (c)     Indebtedness
               Create, incur, assume or suffer to exist or otherwise become or
               be liable in respect of  any indebtedness, other than,  without
               duplication, the following:  (i) indebtedness in respect of the
               Loans and  other obligations hereunder and under the other Loan
               Documents  and  (ii) unsecured  indebtedness  incurred  in  the
               ordinary course of business  (including open accounts  extended
               by suppliers on normal trade terms in connection with purchases
               of  goods and  services,  but  excluding indebtedness  incurred
               through the borrowing of money).


VI.   EVENTS OF DEFAULT

      6.01  Events of Default
            If any  of the  following Events  of  Default shall  occur and  be
            continuing:

            (a)     Payment Default
               Conoco  shall  not have  received  on  behalf of  the  Borrower
               sufficient  funds to pay  any principal  of or interest  on any
               Vessel Loan or the Vessel  Note within three (3) Business  Days
               after  the  date  when  due  (whether  by  scheduled  maturity,
               required prepayment, acceleration, demand or otherwise); or

            (b)     Breach of Warranty
               Borrower shall have breached any warranty or covenant hereunder
               or  in any  other Loan  Document and  same shall not  have been
               cured within  ten (10)  Business Days following  written notice
               from Conoco.


            (c)     Judgments
               Any judgment or  order for  the payment of  money in excess  of
               $2,000,000 shall  be rendered  against the Borrower  and either
               any creditor  shall  have begun  to  enforce such  judgment  or
               order,  or there  shall be  any period  of 10  consecutive days
               during which a stay of  enforcement of such judgment or  order,
               by reason  of a  pending appeal or  otherwise, shall not  be in
               effect.

            (d)     Bankruptcy, Insolvency, Etc.
               The Borrower  shall (i) become  insolvent or generally  fail to
               pay or admit in writing its inability  or unwillingness to pay,
               debts as  they  become  due; (ii) apply  for,  consent  to,  or
               acquiesce   in,  the   appointment  of  a   trustee,  receiver,
               sequestrator  or  other  custodian  for  the  Borrower  or  any
               property of any thereof, or  make a general assignment for  the
               benefit of creditors; (iii) in the absence of such application,
               consent  or  acquiescence,  permit   or  suffer  to  exist  the
               appointment  of  a  trustee,  receiver,  sequestrator  or other
               custodian  for the Borrower  or for  a substantial part  of the
               property thereof, and  such trustee, receiver,  sequestrator or
               other  custodian  shall  not  be  discharged  within  20  days,
               provided that the Borrower  hereby expressly authorizes  Conoco
               to  appear  in any  court  conducting  any relevant  proceeding
               during such  20-day period to preserve, protect  and defend its
               rights under the Loan Documents; (iv) permit or suffer to exist
               the  commencement  of  any  bankruptcy,   reorganization,  debt
               arrangement or other case or proceeding under any bankruptcy or
               insolvency law,  or any dissolution, winding  up or liquidation
               proceeding, in respect of the  Borrower, and, if any such  case
               or  proceeding is not  commenced by the  Borrower, such case or
               proceeding  shall  be consented  to  or  acquiesced in  by  the
               Borrower or shall result in the entry of an order for relief or
               shall  remain  for  20  days  undismissed,  provided  that  the
               Borrower hereby  expressly authorizes  Conoco to appear  in any
               court conducting any such case or proceeding during such 20-day
               period to preserve,  protect and  defend its  rights under  the
               Loan  Documents;  or (v) take  any  action  authorizing, or  in
               furtherance of, any of the foregoing.

            (e)     Impairment of Security, Etc.
               Any  Loan  Document,  or  any Lien  granted  thereunder,  shall
               (except  in accordance with  its terms),  in whole or  in part,
               terminate,  cease to be  effective or  cease to be  the legally
               valid, binding and enforceable  obligation of the Borrower; the
               Borrower  or any  other  party shall,  directly or  indirectly,
               contest  in any  manner  such effectiveness,  validity, binding
               nature or  enforceability; or any lien  securing any obligation
               to  Conoco shall, in whole or in  part, cease to be a perfected
               lien.

            then,  and  in any  such  event, Conoco  may,  by   notice  to the
            Borrower,    (i) declare the  Commitment  to  be terminated,  (ii)
            declare the Vessel Note, plus  all interest thereon and all  other
            amounts payable under this Agreement including all fees, costs and
            expenses  payable  hereunder  to  be forthwith  due  and  payable,
            whereupon,  the Vessel Note, all applicable interest and all other
            applicable amounts shall  become and be forthwith due and payable,
            without   presentment,  demand,  protest,   notice  of  intent  to
            accelerate, or further notice of any kind, all of which are hereby
            expressly waived by the Borrower and (iii) exercise any and all of
            its  other rights  under applicable  law, hereunder and  under the
            other Loan Documents .

      6.02  Action if Bankruptcy
            If any Event of Default  described in Section 6.01(e) shall  occur
            with  respect to the Borrower,  the Commitment (if not theretofore
            terminated)  shall  automatically  terminate and  the  outstanding
            principal  amount of all  outstanding Vessel  Loans and  all other
            obligations shall automatically be  and become immediately due and
            payable, without notice or demand.


VII.  MISCELLANEOUS

      7.01  Notices, Etc.
            All notices and other  communications provided for hereunder shall
            be  in  writing  and  shall be  mailed,  telegraphed,  telecopied,
            telexed or delivered:  

            to the Borrower at:     Deepwater Drilling L.L.C.
                                    901 Threadneedle, Suite 200
                                    Houston, Texas  77079

                                    Attention: Manager
                                    Fax No. (713) 496-0285 

            to Conoco at:                 Conoco Inc.
                                    600 North Dairy Ashford
                                    Houston, Texas  77079

                                    Attention:                  

                                    Fax No. (713) 293-          


            or, as to each party, at such other address as shall be designated
            by such party in a written  notice to the other party complying as
            to delivery with the terms of this Section 7.01.  All such notices
            and  other communications  shall  be effective  (i) if mailed,  72
            hours after being mailed, (ii) if telecopied, when transmitted and
            receipt  is electronically  confirmed, (iii) if telexed,  when the
            appropriate  answerback  is received,  or (iv) if  hand delivered,
            upon  delivery,   except  that  notices  to   Conoco  pursuant  to
            Article II hereof shall not be effective until received by Conoco.

      7.02  Amendments, Etc.
            No amendment of any provision of this Agreement or the Vessel Note
            or any other  Loan Document  shall be  effective unless  it is  in
            writing and signed by the Borrower and Conoco and no waiver of any
            provision of this Agreement or the Vessel Note, nor consent to any
            departure by the Borrower therefrom, shall be effective unless  it
            is in writing and signed by Conoco.

      7.03  No Waiver; Remedies, Etc.
            No failure  on the  part of  Conoco to exercise,  and no  delay in
            exercising, any right  hereunder or under any other  Loan Document
            shall operate as a waiver thereof; nor shall any single or partial
            exercise of any right under  any Loan Document preclude any  other
            or  further exercise thereof  or the exercise  of any other right.
            The rights and remedies of Conoco provided herein and in the other
            Loan  Documents are  cumulative and  are in  addition to,  and not
            exclusive of,  any rights or remedies provided by law.  The rights
            of  Conoco under any  Loan Document against  any party thereto are
            not conditional or contingent on any attempt by Conoco to exercise
            any  of its rights  under any  other Loan   Document  against such
            party or against any other person.

      7.04  Severability
            Any provision of this Agreement, or of any other Loan Document  to
            which  the   Borrower  is   a  party,  which   is  prohibited   or
            unenforceable in any jurisdiction  shall, as to such jurisdiction,
            be   ineffective   to   the   extent  of   such   prohibition   or
            unenforceability  without  invalidating  the  remaining   portions
            hereof or  thereof or affecting the validity  or enforceability of
            such provision in any other jurisdiction.

      7.05  Successors and Assigns
            This  Agreement shall be binding upon and  inure to the benefit of
            the  Borrower  and  Conoco  and their  respective  successors  and
            assigns, except  that  the Borrower  may not  assign   its  rights
            hereunder or any interest herein without the prior written consent
            of Conoco.  Conoco  may freely assign to any  affiliate of Conoco,
            in whole  or in part, its  rights under this Agreement,  or any of
            the Loan Documents, but shall not otherwise  assign such rights to
            any  other  Person  without  the  prior  written  consent  of  the
            Borrower.   To  the extent  of  any  assignment pursuant  to  this
            Section 7.05, the assignee shall have the same rights and benefits
            hereunder and  under the Vessel Note  as it would have  if it were
            Conoco hereunder  (including,  without limitation,  the  right  to
            receive payments under Sections 2.05 and 2.07 hereof).

      7.06  Counterparts
            This Agreement may be executed  in any number of counterparts  and
            by  different parties  hereto  in separate  counterparts, each  of
            which shall  be deemed to be  an original, but all  of which taken
            together shall constitute one and the same agreement.

      7.07  Indemnification
            The  Borrower hereby  indemnifies and  holds harmless  Conoco, its
            affiliates,   parents,  and  subsidiaries   and  their  respective
            directors,  officers,  employees, agents  and  advisors,  (each an
            "Indemnified Party"),  from and  against, any  and   all  actions,
            claims, damages, losses, liabilities, fines, penalties,  costs and
            expenses of  any kind  (including, without  limitation, reasonable
            counsel  fees  and  costs  and expenses)  INCLUDING  ANY  ACTIONS,
            CLAIMS, DAMAGES,  LOSSES, LIABILITIES, FINES, PENALTIES,  COSTS OR
            EXPENSES RESULTING FROM CONOCO'S NEGLIGENCE, in connection with or
            arising from or relating to the execution, delivery or performance
            of any of the Loan  Documents or any transaction contemplated  by,
            or action omitted to be  taken by Conoco under any  Loan Document,
            provided, however, that the  Borrower shall have no obligation  to
            protect,  indemnify  and  save   harmless  Conoco  or  any  Person
            otherwise  entitled to  indemnity  hereunder with  respect to  any
            loss, liability,  action, suit, judgment, demand,  damage, cost or
            expense resulting  solely from  Conoco's or such  Person's willful
            misconduct  as determined by  final order of  a court of competent
            jurisdiction.  If and to the extent that the foregoing undertaking
            may be unenforceable for any reason, the Borrower hereby agrees to
            make the maximum contributions to the payment and satisfaction  of
            the foregoing  indemnified liabilities which is  permissible under
            applicable  law.  Without  prejudice to the  survival of any other
            obligation  of  the   Borrower  hereunder,  the  indemnities   and
            obligations  of the Borrower contained in  this Section 7.07 shall
            survive the payment in full of all Obligations and the termination
            of the Commitments.  

      7.08  Submission to Jurisdiction
           (a)     The  Borrower hereby  irrevocably consents  that any  suit,
                   legal  action  or  proceeding  against  it  or  any  of its
                   property  with respect to any of the  rights or obligations
                   arising directly  or indirectly under  or relating to  this
                   Agreement, any  other Loan  Document may be brought  in any
                   Delaware State  or United States  Federal Court located  in
                   the City of Wilmington, Delaware, as  Conoco may elect, and
                   by execution and  delivery of this Agreement, the  Borrower
                   hereby irrevocably  submits to and  accepts with regard  to
                   any such suit,  legal action or  proceeding, for itself and
                   in respect of its  property, generally and unconditionally,
                   the jurisdiction  of the  aforesaid courts.   The  Borrower
                   agrees that  a final  judgment in any such  suit, action or
                   proceeding  shall be  conclusive  and may  be  enforced  in
                   other  jurisdictions by  suit  on  the judgment  or in  any
                   other  manner  provided by  law.      The Borrower  further
                   irrevocably consents to the service of process in any  such
                   suit,  legal action or  proceeding by the mailing of copies
                   thereof  by   registered  mail,  postage  prepaid,   return
                   receipt requested to all parties entitled to notices  under
                   Section  7.01 hereof.   The  Borrower agrees  that  a final
                   judgment in  any such suit, action  or proceeding shall  be
                   conclusive and  may be enforced  in other jurisdictions  by
                   suit on  the judgment  or in any  other manner provided  by
                   law.  The foregoing shall not  limit the right of Conoco to
                   serve process  in any  other manner permitted by  law or to
                   obtain execution of judgment in any other jurisdiction.

           (b)     The Borrower hereby  irrevocably waives any objection  that
                   it may now or  hereafter have to the laying of venue of any
                   suit,  legal  action  or  proceeding  arising  directly  or
                   indirectly  under or  relating  to this  Agreement  or  any
                   other Loan  Document in  any court located  in the City  of
                   Wilmington, Delaware and hereby further irrevocably  waives
                   any claim  that a court located  in the City of Wilmington,
                   Delaware  is  not a  convenient forum  for  any such  suit,
                   legal action or proceeding.

           (c)     The Borrower  hereby irrevocably  waives any  right it  may
                   have  under the  laws of  any jurisdiction  to commence  by
                   publication any  suit,  legal  action  or  proceeding  with
                   respect to this Agreement or any other Loan Document.

           (d)     The  Borrower  hereby  irrevocably  agrees  that any  suit,
                   legal  action or proceeding commenced by it with respect to
                   any rights  or obligations  arising directly  or indirectly
                   under  or  relating to  this  Agreement  or any  other Loan
                   Document shall  be  brought  exclusively  in  any  Delaware
                   State or  United States Federal Court  located in the  City
                   of Wilmington, Delaware.

           (e)     To  the  extent that  the  Borrower  has  or hereafter  may
                   acquire  any immunity  from jurisdiction  of any  court  or
                   from any legal process (whether through service or  notice,
                   attachment   prior  to  judgment,  attachment   in  aid  of
                   execution, execution  or otherwise) with  respect to itself
                   or  its property,  the Borrower  hereby irrevocably  waives
                   such  immunity in  respect of  its obligations  under  this
                   Agreement and the other Loan Documents.

      7.09  Headings
            Section headings herein are  included for convenience of reference
            only and shall  not constitute a  part of this  Agreement for  any
            other purpose.

      7.10  Governing Law
            THIS AGREEMENT  AND  THE VESSEL  NOTE SHALL  BE  GOVERNED BY,  AND
            CONSTRUED  IN ACCORDANCE WITH,  THE LAW  OF THE STATE  OF DELAWARE
            APPLICABLE  TO CONTRACTS  MADE  AND TO  BE  PERFORMED IN  DELAWARE
            WITHOUT CONSIDERATION AS TO CONFLICTS OF LAW PRINCIPLES.

      7.11  Application of Refunds and Payments under Korean Bank Guarantees
            (a)    Any  and all  amounts  received by  Conoco  (at  an account
                   designated  by  Conoco  or  otherwise)  on  behalf  of  the
                   Borrower  from the  Builder  as refunds  under  the  Vessel
                   Construction Contract  or from  the Korean  Bank under  the
                   Korean  Bank   Guarantee  shall  be   held  by  Conoco   as
                   collateral  for, and/or  then  or at  any  time  thereafter
                   applied in whole  or in part by  Conoco against, all or any
                   part of  the  Obligations  in such  order as  Conoco  shall
                   elect.  The  Borrower hereby  grants to  Conoco a  security
                   interest in  all such  amounts.  Any  surplus of such  cash
                   held by  Conoco and remaining after  payment in full of all
                   of the Obligations and termination of the Commitment  shall
                   be paid over to the Borrower.

            (b)    Anything herein  to the  contrary notwithstanding,  (i) the
                   Borrower shall remain  liable under this Agreement and  the
                   other  Loan Documents  to the  extent set  forth herein and
                   therein to  perform all  of its  obligations hereunder  and
                   thereunder regardless of whether the Builder or the  Korean
                   Bank do not make any refunds under the Vessel  Construction
                   Contract  or  the Korean  Bank  Guarantee  which  they  may
                   otherwise  be  required to  make,    (ii) the  exercise  by
                   Conoco of  any of its rights  hereunder and under the other
                   Loan Documents shall  not release the Borrower from any  of
                   its  obligations   hereunder  or  under   the  other   Loan
                   Documents  and  (iii) Conoco shall  not    have  any  duty,
                   obligation or liability by reason  of this Agreement or the
                   other  Loan   Documents  under   the  Vessel   Construction
                   Contract, nor shall  Conoco be obligated to perform any  of
                   the obligations  or duties of the Borrower thereunder or to
                   take  any  action  to  collect  or  enforce  any claim  for
                   payment under any Loan Document.

      7.12  No Recourse
            (a)    Except  as otherwise  provided  herein or  any  other  Loan
                   Document, no  recourse shall be had  for any claim based on
                   this  Agreement or any other Loan Document  or otherwise in
                   respect hereof  or thereof  against any  past, present,  or
                   future member,  authorized representative  or employee,  as
                   such,  of  (i) the  Borrower  or  (ii) any  predecessor  or
                   successor of  the Borrower either  directly or through  the
                   Borrower  or any  predecessor  or  successor, whether  such
                   recourse  be by virtue of any constitution, statute or rule
                   of law  or by the enforcement  of any assessment or penalty
                   or  by any  legal  or equitable  proceedings  or  otherwise
                   howsoever; all  such liability being  expressly waived  and
                   released by Conoco.

      7.13  Waiver of Jury Trial
            Each of the  Borrower and Conoco  waives any right  to a trial  by
            jury  in any  action,  proceeding or  counterclaim concerning  any
            rights  under this Agreement,  the Vessel  Note or any  other Loan
            Document,  and   agrees  that  any  such   action,  proceeding  or
            counterclaim shall be tried before a court and not before a jury.

      7.14  Payment of Costs and Expenses
            The  Borrower agrees to  pay on demand  all reasonable expenses of
            Conoco (including  the reasonable fees and  out-of-pocket expenses
            of counsel and of  local counsel, if any, who  may  be retained by
            Conoco)  in  connection  with  (i) the  negotiation,  preparation,
            execution  and delivery of  this Agreement and  of each other Loan
            Document, including schedules  and exhibits,  and any  amendments,
            waivers,  consents,  supplements  or other  modifications  to this
            Agreement  or any  other Loan  Document as may  from time  to time
            hereafter   be  required,   whether   or   not  the   transactions
            contemplated hereby  are consummated, (ii) the  filing, recording,
            refiling  or rerecording  of the  Collateral Documents  and/or any
            Uniform  Commercial Code financing statements relating thereto and
            all amendments,  supplements and modifications to  any thereof and
            any  and all other  documents or instruments  of further assurance
            required  to be filed or recorded or  refiled or rerecorded by the
            terms hereof or of any of the  Collateral Documents, and (iii) the
            preparation and review of the  form of any document or  instrument
            relevant to this Agreement or any other Loan Document.

            The  Borrower further agrees  to pay, and  to save Conoco harmless
            from all liability  for, any stamp  or other taxes  which  may  be
            payable  in connection  with  the execution  or  delivery of  this
            Agreement, the borrowings and  credit extensions hereunder, or the
            issuance of  the Vessel  Note or any  other Loan  Documents.   The
            Borrower  also agrees  to  reimburse Conoco  upon  demand for  all
            reasonable  out-of-pocket expenses (including  attorneys' fees and
            legal expenses) incurred in connection with the enforcement of any
            Loan Documents.


IN  WITNESS WHEREOF,  the parties  hereto  have caused  this  Agreement to  be
executed  by their authorized representatives thereunto duly authorized, as of
this ________ day of October, 1996.


DEEPWATER DRILLING L.L.C.                       CONOCO INC.


By:                                       By:
Name:                               Name:
Title:                                    Title:




                                   EXHIBIT A


                                PROMISSORY NOTE

$_______________                                            Dated:

                                                            [Location]


FOR VALUE RECEIVED,  the undersigned,  Deepwater Drilling  L.L.C., a  Delaware
limited  liability company  (the "Borrower"),  HEREBY PROMISES  TO PAY  to the
order    of     Conoco Inc.    ("Conoco")    the     principal    amount    of
______________________________                ________________________________
($________________) or, if less, the sum of  each (i) Vessel Construction Loan
(as hereinafter  defined) and  (ii) Capitalized Interest Loan  (as hereinafter
defined)  made by Conoco to the Borrower  pursuant to the Credit Agreement (as
hereinafter  defined) on  the  Loan Maturity  Date (as  defined in  the Credit
Agreement).  The Vessel Construction Loans and  the Capitalized Interest Loans
are collectively referred to herein as the "Vessel Loans."

The Borrower promises to pay  interest on the unpaid principal amount  of each
Vessel Loan made  by the Bank to  the Borrower, from  the date of such  Vessel
Loan until such principal amount is paid in  full, at such interest rates, and
payable at such times, as are specified in the Credit Agreement.

Notwithstanding any other provision of this Promissory  Note, interest paid or
becoming due  hereunder shall in no event exceed the maximum rate permitted by
applicable law.   Both principal and  interest are payable in  lawful money of
the United States  of America in immediately available funds  to Conoco at its
Account   Number  __________________,   Reference  __________________________,
maintained  by  Conoco.   Each  Vessel Loan  made  by Conoco  to  the Borrower
pursuant  to  the Credit  Agreement,  and  all  payments  made on  account  of
principal hereof,  shall  be recorded  by Conoco  and, prior  to any  transfer
hereof,  endorsed on  the schedule  attached hereto  which is  a part  of this
Promissory  Note; provided, that the failure of Conoco to make any recordation
or endorsement shall not affect the  obligations of the Borrower hereunder  or
under the Credit Agreement.

This Promissory Note is the Vessel Note referred to in, and is entitled to the
benefits of,  the Credit Agreement dated  as of ______________________________
(as amended  or otherwise modified from time to time, the "Credit Agreement"),
by  and between the  Borrower and Conoco.   The Credit  Agreement, among other
things,  (i) provides for  the making of  (a) loans (the  "Vessel Construction
Loans") by Conoco to the Borrower from time to time in an aggregate amount not
to exceed  at  any time  outstanding the  Vessel  Construction Commitment  (as
defined in the  Credit Agreement),  and (b) loans  (the "Capitalized  Interest
Loans")  deemed made by Conoco to the Borrower  to pay interest accrued on the
Vessel Construction  Loans  and on  prior  Capitalized  Interest Loans  in  an
aggregate amount not to exceed $_____________________, the indebtedness of the
Borrower  resulting  from  each  such  Vessel  Loan  being evidenced  by  this
promissory Note; and (ii) contains provisions for acceleration of the maturity
hereof upon the happening of certain stated events and also for the prepayment
of  the  principal  hereof  (together with  all  accrued  and  unpaid interest
thereon) prior  to the maturity hereof  upon the terms and  conditions therein
specified.

This Promissory Note shall  be governed by, and construed  in accordance with,
the laws of the State of Delaware.


                                    DEEPWATER DRILLING L.L.C.


                                    By:
                                    Name:
                                    Title:





                                   EXHIBIT B

                               BORROWING REQUEST


Conoco Inc.


Attention:  [Name]
            [Title]

Ladies and Gentlemen:

This Borrowing Request is  delivered to you pursuant to  the Credit Agreement,
dated as of  October _____, 1996 (together with  all amendments, if  any, from
time to time made thereto,  the "Credit Agreement"), among Deepwater  Drilling
LLC, a  Delaware limited liability  company (the "Borrower")  and Conoco Inc..
Unless otherwise defined herein or the context  otherwise requires, terms used
herein have the meanings provided in the Credit Agreement.

The  Borrower hereby  requests that  a Vessel  Loan be  made in  the aggregate
principal amount of $____________ on ____________________, 19____.

The Borrower hereby agrees that the acceptance by the Borrower of the proceeds
of  the Loans requested hereby constitute a representation and warranty by the
Borrower that, on the date  of such Loans, and before and  after giving effect
thereto and to  the application of the proceeds therefrom,  all statements set
forth in  Section 3.02 of  the Credit Agreement  are true  and correct in  all
material respects.

The  Borrower agrees  that if  prior to  the time  of the  Borrowing requested
hereby any  matter certified to herein by  it will not be  true and correct at
such  time as if then made,  it will immediately so notify  Conoco.  Except to
the extent, if any, that prior  to the time of the Borrowing  requested hereby
Conoco shall receive  written notice to  the contrary from the  Borrower, each
matter certified to herein shall be deemed  once again to be certified as true
and correct at the date of such borrowing as if then made.

Please  wire transfer  the proceeds of  the Borrowing  to the  accounts of the
following persons at the financial institutions indicated respectively:


                          Person to be Paid
  Amount to be          Name            Account No.      Name, Address, etc.
  Transferred                                          of Transferee Lender


 $
                                                       Attention:


 $
                                                       Attention:

 Balance of     The Borrower
 such
 Proceeds                                              Attention:



The Borrower has  caused this Borrowing Request to be  executed and delivered,
and the certification and warranties contained  herein to be made, by its duly
Authorized Representative this _______ day of _________________, 19_____.


                                    DEEPWATER DRILLING L.L.C.


                                    By:
                                    Name:
                                    Title:


                                                               EXHIBIT 10.163

                           JOINT VENTURE AGREEMENT

      THIS  AGREEMENT is made effective as of  the   22    of February, 1996,
between  INTEC Engineering,  Inc., a Texas  corporation having  its principal
office  at   15600  JFK   Boulevard,  Ninth   Floor,  Houston,  Texas   77032
(hereinafter referred to as 'INTEC"), and Reading  & Bates Development Co., a
Delaware corporation  having its principal office  at 901 Threadneedle, Suite
200, Houston, Texas 77079 (hereinafter referred to as "RBDC")

      WHEREAS INTEC and RBDC  wish to enter into a joint venture relationship
(herein  called  "joint  venture")  for  the purpose  of  developing  certain
business activities; and

      WHEREAS  the  parties  wish  to  set  out  the  terms,  conditions  and
provisions  pursuant  to  which  they  will  develop   the  various  business
activities of the joint venture;

      THEREFORE  in consideration of the various  covenants and agreements of
the parties to  and with each other set  forth herein, INTEC and  RBDC hereby
agree as follows:

                                  ARTICLE 1
                                    SCOPE

1.01  The joint venture hereby  formed is limited  to the particular  purpose
      of  pursuing  business  opportunities  with  respect to  obtaining  and
      performing studies,  engineering  and project  management services  and
      contracts for  the development  of offshore  reserves of  oil, gas  and
      other hydrocarbons,  which reserves  are conducive to  development on a
      turnkey   basis.    Such  business   opportunities  shall  not,  unless
      otherwise mutually  agreed in  writing, include business  activities or
      projects related  to offshore  daywork contract drilling  or integrated
      services,  marine  support  vessels,  aircraft,  shorebase  facilities,
      dredging, construction,  pipelines,  transportation or  any other  non-
      turnkey  related  activities  or  projects,  nor  shall  such  business
      opportunities  include  the  participation  of  RBDC,  or  any  of  its
      affiliated  companies, in the Green Canyon 254  Allegheny project or in
      the area  of  mutual interest  related  thereto. As  regards  shorebase
      facilities, pipelines and other facilities, however, the  parties agree
      to discuss  any potential activities  or projects, from  time to  time,
      for the  purpose of  determining whether  there is  mutual interest  in
      including the same within the scope of this joint venture.

1.02  Unless otherwise  agreed in writing,  the joint  venture shall  operate
      under the name of  "Total Offshore Production  Systems" and shall  have
      its principal  office at  901 Threadneedle,  Suite 200, Houston,  Texas
      77079.

                                  ARTICLE 2
                                    TERM

2.01  The  joint venture shall  exist for a  term of five (5)  years from the
      date hereof, unless extended  or sooner terminated by  mutual agreement
      of the parties or in accordance  with the provisions of this Article or
      Article 9 hereof.

2.02  The term of the joint venture shall be automatically terminated  in the
      event of the bankruptcy or insolvency of either party.

2.03  The term of the joint  venture shall be automatically extended for such
      period of time as  may be required to perform or  complete any projects
      or contracts  entered  into or  undertaken  by any  business  structure
      created  pursuant  to Section  3.02,  prior to  the  expiration  of the
      initial term.

                                  ARTICLE 3
                         RELATIONSHIP OF THE PARTIES

3.01  The duties, obligations and liabilities  of the parties are intended to
      be  separate,  and not  joint  or  collective.   Each  party  shall  be
      individually  responsible  for  its  share  of  the   costs,  expenses,
      obligations and liabilities  of the joint venture or  of any project as
      herein provided.

3.02  The  parties shall  cause to  be  created an  appropriate  and mutually
      agreed form of business structure or structures  ("business structure")
      for the purpose of conducting  the business activities developed by the
      joint venture  and, if required  and deemed necessary  by the  parties,
      shall create a separate  business structure for each project  developed
      by  the  joint  venture,  having  regard  to   business  considerations
      including  tax, liability, regulatory  requirements and  other relevant
      considerations.

                                  ARTICLE 4
                                  INTERESTS

4.01  Each party shall  have an ownership interest  in the joint venture  and
      all  equipment,   property,  contracts,  technology  or  other  assets,
      tangible or  intangible, of  the joint  venture in  the percentage  set
      opposite such party's name below:

                  INTEC       25%
                  RBDC        75%

4.02  It is  the  understanding  and intention  of  the  parties  that  their
      participation in  individual business  structures may, on  occasion, be
      on  a basis  other than  as set  forth  in Section  4.01 above.    On a
      project by project basis, prior  to submission of any bid or  proposal,
      each party shall notify the other of  the extent to which it desires to
      participate therein, and the  parties shall then  mutually agree as  to
      the extent  to which each of them shall participate, and the basis upon
      which the  parties  shall incur  and  recover their  respective  costs,
      expenses, obligations and liabilities in connection therewith.

4.03  Each party shall first offer any  and all projects within the scope  of
      this joint venture to the other  party for participation.  In the event
      that  a party elects not  to participate in a  project, it shall notify
      the other  party accordingly, and the  other party shall be  at liberty
      to proceed with the  project with or  without participation therein  by
      third parties, at the sole discretion of such other party.

4.04  A  party who elects not  to participate in a  project shall not compete
      with  the  other  party with  respect  to such  project  or  any aspect
      thereof.

4.05  The parties  agree  that, notwithstanding  anything contained  in  this
      Article 4,  or elsewhere herein, no provision of this Agreement nor any
      act or  omission of either  party shall operate  to preclude  the other
      party from  employing or operating its equipment, or that of any of its
      affiliates, owned on the  date of this  Agreement (or hereafter)  where
      it would otherwise have the opportunity to do so.

4.06  INTEC acknowledges the desire  of RBDC to  maximize the utilization  of
      its drilling  units and  the drilling units  owned or  operated by  its
      affiliated companies, and  where a  project involves the  potential for
      utilization  of an  RBDC or  affiliated  company's drilling  unit, such 
      drilling  unit  owner/operator  will be  given  preference,  subject to
      being competitive in price and terms.   RBDC acknowledges the desire of
      INTEC to maximize the use  of INTEC's engineering resources in projects
      under consideration  and, where  a project  involves the  potential for
      utilization of  INTEC's engineering  resources, such resources  will be
      given preference, subject to being competitive in price and terms.

4.07  It is agreed  by the parties that, on  a project by project  basis, the
      share of  the  total  financial  return (including  profit,  return  on
      investment  in  previously  owned  equipment,  financial  support,  and
      compensation  for  expertise), if  any,  that each  party  will  or may
      derive from such project shall  be directly related to the contribution
      of such party to that particular project.

                                   ARTICLE 5 
                     FINANCING OF BUSINESS STRUCTURES
 
5.01 The  parties  agree that  the  acquisition of  assets  by  any business
      structure will be financed by:

      (i)         income from business activities and projects;
      (ii)        third party  or project  financing to  the extent  possible
                  secured  by the  value ofcontracts,  joint venture  assets,
                  and/or  loans,   guarantees  or  other   credit  facilities
                  provided  by  INTEC  and  RBDC,  as required  and  mutually
                  agreed by the parties; and
      (iii)       capital contributions  as  required and  mutually agreed by
                  the  parties, subject to Section 5.02 below.

5.02  It is  agreed by the parties  that their contributions to  any business
      structure for  the purposes  of creating  equity and/or  securing third
      party or project financing, and  for the purpose of completing projects
      undertaken by that business  structure, may include,  but shall not  be
      limited to the following:

- -     drilling or other equipment which  may be sold, chartered, or otherwise
      transferred or made available to the business structure;
- -     marine technology;
- -     subsea production and transportation technology;
- -     operating expertise;
- -     cash, debt  guarantees or other  credit facilities as  may be  required
      and mutually agreed.

5.03  The parties shall provide  operational and technical support and  shall
      provide  bidding and contracting expertise to the  joint venture.  Each
      such  party shall  bear  its  own costs  with  respect to  bidding  and
      contracting activities of the joint venture.

5.04  The  parties  agree  that  they  shall  provide   offshore  development
      expertise,  floating  production technology,  materials,  equipment and
      experienced personnel for the purpose  of the joint venture's  business
      activities.

5.05  The assets  of any business  structure shall be  available for  project
      funding requirements,  and security  for financing  undertaken by  such
      business structure.

5.06  Funds required by the joint  venture or any business structure for  its
      business activities shall be supplied  or made available by the parties
      as may be mutually agreed from time to time.

                                  ARTICLE 6
                                 MANAGEMENT 

6.01  The business activities of  the joint venture  shall be determined  and
      controlled by a Management  Committee which shall  consist of four  (4)
      members selected as herein provided.

6.02  INTEC  shall be entitled to  appoint one (1) member,  and RBDC shall be
      entitled  to appoint  three (3) members,  to the  Management Committee,
      from time  to  time.   In addition,  each party  shall  be entitled  to
      appoint  one (1) or more alternate members  to its representative(s) on
      the Management  Committee, and  shall notify  the other  party of  such
      alternate or alternates so appointed.

6.03  Except as may be  provided elsewhere in this Agreement, a majority vote
      of the  members of the  Management Committee shall  be required on  all
      matters, including but not necessarily limited to the following:

- -     all matters pertaining  to third party or project  financing, including
      debt guarantees; 
- -     valuation of non-dollar contributions to any business structure by  the
      parties.  bid preparation and submission  with respect  to any project;
      and
- -     basis  of charges to  and by  any business structure  for equipment and
      manpower.

      The appointment  or removal  of the  general manager  or the  financial
      manager of the joint venture and the appointment  or removal of project
      manager(s) shall be by unanimous vote of the Management Committee.

6.04  The  general manager of the joint venture,  appointed by the Management
      Committee, shall initially be Curtis  Burton, a RBDC nominee, and shall
      have responsibility  for management  of the joint  venture's day-to-day
      activities and business development.  The general manager  shall report
      and be accountable  to, but shall  not be a member  of, the  Management
      Committee.

6.05  The  financial  manager  of   the  joint  venture,  appointed  by   the
      Management Committee, shall  initially be  an RBDC  nominee, and  shall
      have responsibility  for management  of project  finance, treasury  and
      accounting  activities of  the joint  venture.   The  financial manager
      shall report and be accountable to,  but shall not be a member  of, the
      Management Committee.

6.06  If the parties elect to incorporate the joint venture  into a corporate
      entity (including  a  corporation or  limited liability  company),  the
      essential  economic  interests  of  the  parties  hereunder   shall  be
      preserved,  to  the extent  reasonably  possible.   In  the  event such
      corporate entity is formed, it is intended  that the general manager of
      the joint venture shall become the  president of the new entity and the
      financial manager of the  joint venture shall  become the treasurer  of
      the new entity.

6.07  The joint venture shall  reimburse RBDC for  all wages, salary,  bonus,
      benefits, travel  and transportation  costs and other  employment costs
      incurred by RBDC with respect to the general manager,  and the services
      of the general manager  shall be dedicated  to conducting the  business
      of  the  joint venture  as  its  general  manager.    Unless  otherwise
      determined by  the Management  Committee, the  financial manager  shall
      contribute his or her time to the joint venture at no cost.

6.08  The  Management Committee shall  select and  appoint a  project manager
      for  each project  undertaken by  the  joint venture,  based  solely on
      experience and  qualifications.  The  project manager shall report  and
      be responsible to the general manager.

6.09  The Management  Committee shall,  from time  to time  as determined  by 
      them,  cause budgets and/or forecasts  of expenditures  to be prepared,
      revised as required, and  approved for each  project bid or  undertaken
      by  any  business structure.   All  expenditures  shall be  made  on an
      approved budget and/or A.F.E. basis.

                                  ARTICLE 7
                         BASIS OF CHARGES/VALUATION

7.01  The basis  upon which  equipment, manpower, proprietary  information or
      other  services,   technology  or   assets  shall   be  evaluated   and
      contributed   and/or  charged  to  any   business  structure  shall  be
      determined by the Management Committee.

7.02  Equipment owned by either party  may be made available to any  business
      structure at  rates  such  that the  business  structure  will  make  a
      reasonable profit thereon.

7.03  Other considerations being equal, equipment, services and  resources of
      the parties  or their affiliates  shall have priority  in the  business
      activities of the joint venture.

7.04  Equipment or  other assets  committed to  any business  structure by  a
      party may  not be  withdrawn for  any reason  for the  duration of  the
      relevant project contract, unless otherwise mutually agreed.

7.05  The basis  upon which assets  of any business  structure or  equipment,
      manpower,  proprietary  information, or  other services,  technology or
      assets shall  be charged to third  parties for whom  projects are being
      conducted  by any  business  structure,  shall  be  determined  by  the
      Management Committee.

                                  ARTICLE 8
                          DISPOSITION OF INTERESTS

8.01  Neither  party (for purposes of this Article  8, the "disposing party')
      shall dispose  of,  sell,  assign or  otherwise  transfer  all  or  any
      portion of its  interest in  this Agreement or  any assets acquired  by
      any  business structure to any third party (other than to affiliates as
      provided  herein) unless  and until  the disposing  party first  offers
      such interest to the other party  (for purposes of this Article 8,  the
      'receiving party")  in writing on  the same terms  and conditions  (and
      encloses with  such offer a copy of the offer received from such party)
      in  all material respects, and the receiving  party either accepts such
      offer or  waives same  in writing.   If  the receiving  party does  not
      accept such  offer or waive  same in writing  within 30  days following
      receipt  of the  offer, the  receiving  party will  be  deemed to  have
      waived same  in writing, and the offering party  shall be free to sell,
      assign or  otherwise transfer such  interest to the third  party on the
      terms contained in such offer (as provided to the receiving party).

8.02  A party hereto  may dispose of  an interest hereunder  as described  in
      Section  8.01 above to an affiliate, PROVIDED  that the written consent
      of the other  party hereto is  first obtained, such consent  not to  be
      unreasonably  withheld,  and  PROVIDED  FURTHER  that  the transferring
      party  shall  guarantee  performance  hereunder  by  the   assignee  or
      transferee  and  such  assignee  or  transferee  executes  an  addendum
      agreement  hereto whereby  such  assignee or  transferee  agrees to  be
      bound by all the terms and provisions hereof.

8.03  For  the  purposes  of  this  Agreement,  "affiliate"  shall  mean  any
      corporation which  controls or  is controlled  by, whether directly  or
      indirectly, either party hereto.

                                  ARTICLE 9 
                              EARLY TERMINATION

9.01  In the event the  Management Committee has been unable for  a period of
      thirty consecutive months or more during the term of this  Agreement to
      agree  to  pursue   any  business  opportunities   (including,  without
      limitation, the failure  to agree to submit a proposal to a prospective
      client)  that otherwise would have been available  to the joint venture
      or any  business structure  due to apparent  irreconcilable differences
      between  the  parties, either  party  may give  written  notice  of its
      intention to terminate this Agreement to the other.

9.02  In the  event either party  gives notice as  provided in  Section 9.01,
      the parties agree to meet within thirty  (30) days thereafter and exert
      all reasonable efforts to resolve the differences.

9.03  If the parties are not able  to resolve the differences within six  (6)
      months following the giving of  notice under Section 9.01, either party
      may terminate this Agreement  by written notice  to the other,  subject
      to  the performance or completion of any  projects or contracts entered
      into  or   undertaken  by   any  business  structure   prior  to   such
      termination.
                                 ARTICLE 10
                                   DEFAULT

10.01 In  the  event that  either  party fails,  for  any  reason within  its
      reasonable  control,  to  meet  any  of  its  obligations  under   this
      Agreement or in connection with any business  structure or project, the
      other  party may give  written notice to  the defaulting  party of such
      default.

l0.02 If the  defaulting party does  not cure any such  default within thirty
      (30) days following  the giving of notice as provided in Section 10.01,
      then, until  such default  is cured,  the  other party  shall have  the
      following rights:

      (a)  to  name all members of  the Management Committee for the purpose
           of  voting  concerning  the  performance  or  completion  of  any
           projects or  contracts entered into or undertaken by any business
           structure  with  respect to  which  the  defaulting  party  is in
           default.
      (b)  to cure any  such default insofar  as clients or persons  dealing
           with the joint  venture or any business structure  are concerned,
           without prejudice to its  rights against the defaulting party for
           full  indemnification  therefrom (including  interest  at  a rate
           equal  to one (1%)  percent above  the prime rate in  effect from
           time to time during the duration of such default as quoted by The
           Texas Commerce Bank, N.A., Houston).
      (c)  to recover  any and  all monies  (including interest  as provided
           above) out of  the defaulting party's  share of profits from  any
           project or business structure, whether related to the  default or
           otherwise.

10.03 In the event any such default is not cured within ninety (90)  days (or
      such  other time as may be  allowed by the  non-defaulting party in its
      sole discretion) following the giving of notice  as provided in Section
      10.01, the non-defaulting party shall have the  right to terminate this
      Agreement,  without  prejudice  to its  rights  against the  defaulting
      party under this Agreement or otherwise at law.

                                 ARTICLE 11
                               CONFIDENTIALITY

11.01 Neither party  shall be  entitled to  use, publish or  disclose to  any
      third party, other than affiliates,  any information obtained  from the 
      other  party, from  the joint  venture or  any  business  structure, or
      generated by or within the joint venture, or any business  structure or
      any project, without the prior written consent of the other party.

11.02 The  parties  respectively  undertake that  their executives  and other
      personnel,  and   those  of   their  affiliates,   shall  observe   the
      confidentiality provision  set forth herein.   The parties shall,  when
      appropriate, cause  their respective executives  and other personnel to
      execute and deliver  secrecy agreements  to ensure compliance with  the
      confidentiality obligation contained herein.

11.03 This obligation and  restriction shall survive the termination of  this
      Agreement.

                                 ARTICLE 12
               TRANSFER OF TECHNOLOGY/PROPRIETARY INFORMATION

12.01 Technology  and/or  proprietary  information  owned by  a  party  shall
      remain the  sole and exclusive  property of such  party unless sold  or
      otherwise transferred for consideration to any business structure.

12.02 Technology   and/or  proprietary  information  owned  by  any  business
      structure shall not, unless mutually agreed by  the parties, be sold or
      transferred to any third party.

12.03 Technology and/or  proprietary information owned  by the parties shall,
      to the extent possible, be  utilized in the best interests of the joint
      venture.

12.04 Upon request  by  either  party, the  other  party  shall  execute  and
      deliver  a  secrecy  agreement restricting  the  release of  technology
      and/or proprietary information between themselves and/or  third parties
      in connection with the business activities of the joint venture.

12.05 This obligation shall survive the termination of this Agreement.

                                 ARTICLE 13
                           BOOKS AND RECORDS/AUDIT

13.01 The Management Committee  shall cause  proper books and  records to  be
      kept pertaining to all aspects of the business activities of  the joint
      venture.  The same shall  be kept and maintained at  a place or  places
      to be designated  by the Management Committee and shall be available to
      either party  hereto  at  all reasonable  times  for  the  purposes  of
      examination, review and audit.

13.02 The Management  Committee shall  supervise the  preparation of  Federal
      income tax information returns which the joint  venture may be required
      to file, and shall  timely provide sufficient tax  information to  each
      party.

                                 ARTICLE 14
                                 ARBITRATION

14.01 ALL DISPUTES ARISING HEREUNDER  SHALL BE FINALLY SETTLED BY ARBITRATION
      UNDER THE RULES OF  THE SOCIETY OF  MARINE ARBITRATORS BY  ONE OR  MORE
      ARBITRATORS APPOINTED IN  ACCORDANCE WITH SAID RULES.  THE  ARBITRATION
      WELL TAKE  PLACE IN HOUSTON, TEXAS, UNLESS THE  PARTIES OTHERWISE AGREE
      IN  WRITING.  THE AWARD  OF SUCH ARBITRATION SHALL BE  BINDING UPON THE
      PARTIES, WITHOUT APPEAL, WITH RESPECT TO THE  DISPUTES SO SUBMITTED AND
      THE  COSTS OF  SUCH ARBITRATION  INCLUDING  REASONABLE LEGAL  FEES  AND
      EXPENSES.

                                 ARTICLE 15  
                                  INSURANCE
15.01 The Management Committee  shall, from time to  time, take out or  cause
      to  be  taken out  on  behalf  of  the joint  venture  or  any business
      structure,  insurance  with  limits  and  coverage  acceptable  to  the
      Management  Committee,  covering  the  business  activities,  projects,
      contracts, equipment, personnel, or other  assets or liabilities of the
      joint   venture   or  any   business   structure,   including,  without
      limitation, protection against third party liability relating thereto.

                                 ARTICLE 16
                              ENTIRE AGREEMENT

16.01 This  Agreement  supersedes  all prior  correspondence, communications,
      agreements  and  understandings  between  the  parties  respecting  the
      subject matter hereof.

16.02 No amendments, supplements or modifications to this Agreement shall  be
      effective unless in writing and duly executed by both parties hereto.

16.03 INTEC and  RBDC agree that  each of them  shall ensure  that the  joint
      venture and all business structures perform and  comply with the terms,
      conditions and intent of this Agreement.

16.04 This  Agreement shall  be binding  upon the  parties  hereto  and their
      respective successors and permitted assigns.

16.05 This Agreement shall be  governed by and construed  in accordance  with
      the substantive laws of the state of Texas.

                                 ARTICLE 17
                                   NOTICES

17.01 All  correspondence, notices,  demands  or  other communications  which
      under  the  terms  of this  Agreement  are  required  to  be  served or
      delivered  shall  be  in  writing  and  may   be  served  or  delivered
      personally or by facsimile addressed to the parties as follows:

           INTEC Engineering, Inc.
           1600 JFK Boulevard, Ninth Floor
           Houston, Texas 77032

           Attention: Mr. J. Gillespie, Senior Vice President
           Facsimile No. (713)987-3838

           Reading & Bates Development Co.
           901 Threadneedle, Suite 200
           Houston, Texas, 77079

           Attention: D. C. Toalson, President
           Facsimile No. (713) 496-0285

17.02 Either  party may  change its  address  above by  notice to  the  other
      party.

IN  WITNESS WHEREOF each party has executed this  Agreement as of the day and
year first above written.

                  INTEC ENGINEERING, INC.


                  By:                                            

                  Its:                                            

                  READING & BATES DEVELOPMENT Co.

                  By:                                            

                  Its:                                           
June 1, 1996






Reference is  made to  the Joint  Venture Agreement dated  February 22,  1996
between INTEC Engineering, Inc.,  and Reading &  Bates Development Co.  which
established a  joint venture  under the  name of  "Total Offshore  Production
Systems".

The subject  agreement is amended  to include the  attached "EXHIBIT A",  TAX
PARTNERSHIP  PROVISIONS,  retroactive  to  the  original  Agreement  date  of
February 22, 1996.

IN WITNESS WHEREOF,  the parties hereto  have caused this "EXHIBIT  A" to  be
approved and  accepted as  part of the  original Joint  Venture Agreement  by
their duly  authorized representatives in  Houston.  Texas  effective on  the
date first set out above.


                              INTEC ENGINEERING, INC.

                              By:                                    

                              Its:                                   


                              READING & BATES DEVELOPMENT CO.

                              By:                                    

                              Its:                                   


                                 EXHIBIT "A"

Attached to and made  a part of that certain Joint Venture Agreement dated as
of the  22nd day  of February 1996,  between Reading &  Bates Development Co.
and INTEC Engineering, Inc.

                         TAX PARTNERSHIP PROVISIONS

1.    Name.   The  following name shall  be applied  to this  arrangement for
      purposes of  filing of income  tax information  returns: Total Offshore
      Production Services.

2.    Definition.  The following definitions shall apply to this Exhibit:

      a)   Agreement.   The Joint Venture Agreement to which this Exhibit is
           attached.
      b)   Code. The Internal Revenue Code of 1986,  as amended from time to
           time.
      c)   Joint  Operations.   All activities  of  the Venturers  conducted
           pursuant to the Agreement.

3.    Contract  Provisions.  This Exhibit shall supersede contrary provisions
      of the Agreement.

4.    Relationship  of the  Parties.   The rights,  duties, obligations,  and
      liabilities of the parties hereunder shall be several  and not joint or
      collective.    Each party  hereto  shall be  responsible  only  for its
      obligations as  set out in  the Agreement and shall  be liable only for 
      its  share  of  the cost  and  expense of  the Joint  Operations.   The
      parties  recognize   the  Joint   Operations  will   be  considered   a
      partnership for income tax purposes.

5.    Subchapter  K to Apply .  Each party now  having or hereafter acquiring
      an  interest under  the Agreement  agrees not  to  elect for  the Joint
      Operations  of  the parties  to  be excluded  from  the  application of
      Subchapter  K  of Chapter  1  of  Subtitle  A  of  the  Code,  and  all
      amendments thereto or similar provisions of any applicable state laws.

6.    Partnership Returns.   Reading &  Bates Development  Co. shall  prepare
      and file the partnership  tax returns and make  the partnership  income
      tax  elections in such returns.  The parties agree to furnish Reading &
      Bates   Development  Co.  the  information  necessary  for  the  proper
      preparation of these  returns.   In preparing such  returns, Reading  &
      Bates  Development Co. shall use  its best efforts,  but shall incur no
      liability to the parties with regard to such returns.

7.    Tax Matters Return, Reading  & Bates Development Co.  shall be  treated
      as the Tax  Matters Partner for purposes of Section 6231 (a) (7) of the
      Code.   Reading &  Bates Development  Co. shall  promptly inform  other
      parties of  all matters coming to  its attention in its capacity as Tax
      Matters Partner and  shall not  take any action  permitted by  Sections
      6222 through 6232  of the Code without  first giving notice thereof  to
      all other parties.

8.    Allocation of  Income, Deductions and Credits - The  parties agree that
      for income tax purposes all terms  of income, gain, deduction, loss and
      credits shall be allocated among the parties as follows:

      a)   Gross income from the Joint Operations of the Joint venture shall
           be  allocated among the parties in the  ratio in which they share
           in the proceeds as provided in the Agreement.

      b)   Deductions for intangible drilling and development costs, if any,
           shall be allocated among  the parties in the ratio  in which they
           have contributed to such costs.
      c)   Deductions for costs of  the Joint Operations shall be  allocated
           among  the parties in the ratio in which they have contributed to
           such costs.
      d)   Depreciation  on  equipment   (and  investment  tax   credit,  if
           applicable, on equipment) shall be allocated among the parties in
           the ratio in which they have contributed to the adjusted basis of
           such equipment.
      e)   Deductions  related   to  any   item  of   cost  in   excess   of
           thecontributions made  by the parties toward the  payment of such
           cost shall be  allocated in the  ratio of the obligations  of the
           parties to pay the remaining cost of such item.
      f)   Gains from each  sale or other  disposition of property shall  be
           allocated to  each party  whose share of  the proceeds from  such
           sale  or  other  disposition  exceeds  its  contribution  to  the
           adjusted basis of the property (as adjusted for the party's share
           of depreciation, depletion,  amortization or other adjustments to
           basis) in the proportion that such excess bears to the sum of the
           excesses of all parties having such an excess.
      g)   Losses from  each  sale,  abandonment  or  other  disposition  of
           property shall  be allocated to each  party whose contribution to
           the  adjusted basis of the  property (as adjusted for the party's
           share   of   depreciation,   depletion,  amortization   or  other
           adjustments to basis) exceeds its share of the proceeds from such
           sale,  abandonment or  other disposition  in the  proportion that
           such  excess bears  to the  sum  of the  excesses of  all parties
           having such an excess.
      h)   Within  the limits of the  overall allocation of gain or proceeds 
           hereunder, gain treated as ordinary income by reason of  Sections
           1245,  1250, or  1254  of the  Code,  shall be  allocated  to the
           parties in the  ratio in which  the deductions resulting in  such
           ordinary income were previously allocated to them.
      i)   Each other  item of income, gain, loss, deduction or credit shall
           be allocated to each party on the basis of and in accordance with
           its interest in or its contribution to such item.

9.    Allocation  in Event of  Transfer.   Should there  be a  transfer of an
      interest  covered by  the Agreement,  income,  and deductions  shall be
      allocated  between the transferor and transferee based  upon the actual
      income and deductions before and after the  date of transfer unless the
      transferor,  transferee, and  the non-transferring joint  venture party
      agree to an allocation in a pro rata manner for the taxable year.

10.    Maintenance

      a)   A Capital  Account shall  be established  for each  party  hereto
           which shall  be credited  with the  amount of  cash and  the fair
           market value of property  contributed to the Joint Operations  by
           such  party  (net  of  liabilities  assumed  by the  parties  and
           liabilities to which such contributed  property is subject), such
           party's  distributive share  of income  (including  income exempt
           from tax) and gain (or  item thereof), and which shall be charged
           with  the cash and the  fair market value of property distributed
           to  such  party  (net of  liabilities  assume  by such  party and
           liabilities to which such distributed  property is subject), such
           party's  distributive  share  of  loss  and  deduction  (or  item
           thereof),  and such  party's distributive  share of  expenditures
           which are  neither deducible  nor chargeable  to capital,  all as
           determined for  Federal  income  tax  purposes  pursuant  to  the
           allocation provisions of this  Exhibit and consistently with  the
           requirements of regulations under Section 704(b) of the Code.
      b)   Contributed  Properties.    Depreciation,  depletion and  gain or
           loss with respect  to assets contributed to  the Joint operations
           shall be  based  upon the  fair  market  values at  the  time  of
           contribution  and shall  be allocated to the  Capital Accounts in
           accordance with each party's share of such values and interest in
           the proceeds  thereof even  though such  items as  determined for
           income tax purposes are allocated differently so as to eliminate,
           to the extent possible, the disparity between the  adjusted basis
           and the fair market value.
      c)   Distribution in  Kind.  Immediately prior  to any distribution of
           assets in  kind the  Capital Accounts shall  be adjusted for  the
           gain  or loss  which  would be  allocable  to each  party upon  a
           disposition of such assets for fair market value.
      d)   Fair Market Value.  Fair market value for purposes of adjustments
           to Capital  Accounts shall be reasonably  determined by Reading &
           Bates Development Co. Reading  & Bates Development  Co. shall  be
           entitled  to   base  such   value  on  the   price  paid  for   a
           contemporaneous transfer of an interest in the property.  Reading
           &  Bates Development Co. shall  be entitled to value equipment in
           accordance  with the  accounting procedures  as  provided in  the
           Agreement.  Reading &  Bates Development  Co.'s determination  of
           fair  market  value shall  be conclusively  binding as  among the
           parties.
      e)   Deemed Termination.  Upon a deemed termination and reformation of
           the  Joint Operations  as a  partnership for  Federal  income tax
           purposes under Section 708 (b) (1) (13) of  the Code, the Capital
           Accounts for  each party shall be adjusted for each party's share
           of the gain that  would result if all  assets were sold  for fair
           market  value.  Any party  having a deficit balance shall satisfy
           such deficit  by contribution of  cash on or before  the later of
           the end of the taxable year of  the Joint Operations in which the 
           deemed   termination  occurs   or  90   days  after   the  deemed
           termination, such payment  to be credited  to the account of  the
           party under the  Agreement as an  advance payment of costs.   All
           assets, subject  to liabilities  ' shall be  deemed to have  been
           distributed to  the  parties in  the ratio  of  positive  Capital
           Accounts and  recontributed to  the continuing  Joint  operations
           under all  terms of the Agreement, which shall continue in effect
           without  modification.    New  Capital  Accounts  shall  then  be
           established for the parties and  their successors based upon  the
           fair  market value  of  the assets  deemed recontributed  to  the
           continuing Joint operations.

      11.  Sharing of Proceeds.  Proceeds from disposition of properties and
           equipment   (including   simulated   proceeds   from   a   deemed
           disposition)  shall be shared in  the ratio in  which the cost of
           such properties and equipment was charged up to the amount deemed
           undepreciated and undepleted cost  as determined for purposes  of
           the  Capital  Accounts and  any excess  (along  with  the related
           proceeds from any disposition of  properties and equipment) shall
           be  shared  in  the ratio  in  which  joint venture  revenues are
           shared.

      12.  Adjustments upon Termination.  Upon an actual termination  of the
           Agreement or  upon the effectiveness of an election for the Joint
           Operations to be excluded  from Subchapter K of Chapter  I of the
           Code (permitted only with the consent of all parries) :

           a)     The  Capital Accounts  shall be  adjusted  for the  gain or
                  loss which would be allocable  to each party from a sale of
                  all assets  at fair  market value,  determined in the  same
                  manner as  provided in  the provisions  hereof relating  to
                  Capital Accounts;
           b)     Any party  having a  deficit balance Capital  Account shall
                  satisfy   such   deficit  by   contribution  of   cash  for
                  distribution  to the  other parties on  or before the later
                  of the end of the  taxable year of the Joint operations  or
                  90 days after termination;
           c)     If  the credit balances of all Capital  Accounts are in the
                  same  ratio  as the  ratio  in which  assets  of  the Joint
                  Operations  are  then  owned,  no  adjustment  in ownership
                  shall be required:
           d)     otherwise, if (c)  does not apply, each party whose Capital
                  Account balance is less than  the fair market value of this
                  ownership  interest  in assets  of  the  Joint  Operations,
                  after  giving  effect  to  (a)  if  applicable,  shall  (i)
                  contribute cash  to the  Joint Operations for  distribution
                  to other parties in  an amount sufficient to eliminate such
                  deficiency, (ii) assign to other parties  particular assets
                  of  the  Joint  Operations otherwise  owned  by  such party
                  having a  fair market  value sufficient  to eliminate  such
                  deficiency,  of (iii) assign to  other parties an undivided
                  portion of  all assets  of the  Joint Operations  otherwise
                  owned by such party  having a fair market value  sufficient
                  to eliminate such deficiency;
           e)     If (d) applies and a  party with a deficiency has  not made
                  payment or  assignments under  (i) or (ii)  within 60  days
                  after  notice  of  such  deficiency  by  Reading   &  Bates
                  Development Co., option (iii) shall apply; and
           f)     All  assignments  made  or  required  under this  paragraph
                  shall be  in recordable form by  special warranty,  free of
                  all  liability,  claims  and  encumbrances  created  by the
                  assigning party. 



                                                           EXHIBIT 10.164

*************************************************************************

                                LOAN AGREEMENT

                         Dated as of December 14, 1996

                                  $38,000,000

                                TRB CORPORATION
                                 as Borrower,


                        READING & BATES (U.K.) LIMITED

                                      and

                            NISSHO IWAI EUROPE PLC
                                   as Lender


*************************************************************************

                               TABLE OF CONTENTS

                                                                          Page

Section 1.  Definitions and Accounting Matters  . . . . . . . . . . . . . .  1
      1.01  Certain Defined Terms . . . . . . . . . . . . . . . . . . . . .  1
      1.02  Accounting Terms and Determinations . . . . . . . . . . . . . . 10

Section 2.  Commitment  . . . . . . . . . . . . . . . . . . . . . . . . . . 10
      2.01  Committed Loan  . . . . . . . . . . . . . . . . . . . . . . . . 10
      2.02  Changes of Commitment . . . . . . . . . . . . . . . . . . . . . 10
      2.03  Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
      2.04  Lending Offices . . . . . . . . . . . . . . . . . . . . . . . . 11
      2.05  The Note  . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
      2.06  Use of Proceeds . . . . . . . . . . . . . . . . . . . . . . . . 11

Section 3.  Borrowings and Payments . . . . . . . . . . . . . . . . . . . . 11
      3.01  Borrowings  . . . . . . . . . . . . . . . . . . . . . . . . . . 11
      3.02  Optional Prepayments. . . . . . . . . . . . . . . . . . . . . . 11
      3.04  Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
      3.05  Payments  . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
      3.06  Certain Notices . . . . . . . . . . . . . . . . . . . . . . . . 13
      3.07  Set-off; Sharing of Payments  . . . . . . . . . . . . . . . . . 13

Section 4.  Yield Protection and Illegality . . . . . . . . . . . . . . . . 13
      4.01  Additional Costs  . . . . . . . . . . . . . . . . . . . . . . . 13
      4.02  Illegality  . . . . . . . . . . . . . . . . . . . . . . . . . . 14
      4.03  Compensation  . . . . . . . . . . . . . . . . . . . . . . . . . 14
      4.04  Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Section 5.  Conditions Precedent  . . . . . . . . . . . . . . . . . . . . . 15
      5.01  Advance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Section 6.  Representations and Warranties  . . . . . . . . . . . . . . . . 18
      6.01  Corporate Existence . . . . . . . . . . . . . . . . . . . . . . 18
      6.02  Information; Material Adverse Change  . . . . . . . . . . . . . 19
      6.03  Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . 19
      6.04  No Breach . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
      6.05  Corporate Action  . . . . . . . . . . . . . . . . . . . . . . . 19
      6.06  Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
      6.07  ERISA and Pension Plans . . . . . . . . . . . . . . . . . . . . 20
      6.08  Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
      6.09  Ownership and Use of Properties . . . . . . . . . . . . . . . . 20
      6.10  Environmental Matters . . . . . . . . . . . . . . . . . . . . . 20

Section 7.  Covenants . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
      7.01  Statements  . . . . . . . . . . . . . . . . . . . . . . . . . . 22
      7.02  Taxes and Claims  . . . . . . . . . . . . . . . . . . . . . . . 24
      7.03  Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
      7.04  Maintenance of Existence; Conduct of Business . . . . . . . . . 24
      7.05  Maintenance of and Access to Properties . . . . . . . . . . . . 24
      7.06  Compliance with Applicable Laws . . . . . . . . . . . . . . . . 24
      7.07  Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . 24
      7.08  Indebtedness  . . . . . . . . . . . . . . . . . . . . . . . . . 25
      7.09  Mergers, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . 25
      7.10  Liens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
      7.11  Investments . . . . . . . . . . . . . . . . . . . . . . . . . . 25
      7.12  Transactions with Affiliates  . . . . . . . . . . . . . . . . . 25
      7.13  Guarantees  . . . . . . . . . . . . . . . . . . . . . . . . . . 25
      7.14  Further Assurances  . . . . . . . . . . . . . . . . . . . . . . 26
      7.15  Dividends . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
      7.16  ERISA and Pension Plan Compliance . . . . . . . . . . . . . . . 26
      7.17  Environmental Matters . . . . . . . . . . . . . . . . . . . . . 26
      7.18  Performance of Transaction Documents  . . . . . . . . . . . . . 27
      7.19  Amendment of Transaction Documents  . . . . . . . . . . . . . . 27
      7.20  Operation of Vessel . . . . . . . . . . . . . . . . . . . . . . 27
      7.21  Sale or Modification of Vessel  . . . . . . . . . . . . . . . . 27
      7.22  Acknowledgment of Charter Assignment  . . . . . . . . . . . . . 27

Section 8.  Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
      8.01  Events of Default.    . . . . . . . . . . . . . . . . . . . . . 27
      8.02  Application of Proceeds . . . . . . . . . . . . . . . . . . . . 30

Section 9.  Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . 30
      9.01  Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
      9.02  Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
      9.03  Expenses, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . 31
      9.04  Indemnification . . . . . . . . . . . . . . . . . . . . . . . . 31
      9.05  Amendments, Etc.  . . . . . . . . . . . . . . . . . . . . . . . 32
      9.06  Successors and Assigns  . . . . . . . . . . . . . . . . . . . . 32
      9.07  Survival  . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
      9.08  Captions and Final Agreement  . . . . . . . . . . . . . . . . . 33
      9.09  No Usury Intended . . . . . . . . . . . . . . . . . . . . . . . 33
      9.10  Invalidity  . . . . . . . . . . . . . . . . . . . . . . . . . . 34
      9.11  No Consequential Damages  . . . . . . . . . . . . . . . . . . . 34
      9.12  GOVERNING LAW; SUBMISSION TO JURISDICTION; WAIVER OF JURY TRIAL 34
      9.13  Agent for Service of Process  . . . . . . . . . . . . . . . . . 34

Exhibit 2.05            Note
Exhibit 3.01            Drawdown Notice
Exhibit 6.11            Insurance
Exhibit 7.08            Terms of Subordinated Debt
Exhibit A       Form of Comfort Letter
Exhibit B       Form of Opinion of Wayne K. Hillin
Exhibit C       Form of Opinion of Baker & Botts, L.L.P.
Exhibit D       Form of Opinion of Icaza,, Gonzalez-Ruiz & Aleman
Exhibit E       Form of Opinion of Denton Hall
Exhibit F       Form of Opinion of Cayman Islands Counsel
Exhibit G       Form of Opinion of MacFarlanes
Exhibit H       Form of Participation Letter
Exhibit I       Form of Acknowledgment
Exhibit J       Form of Option Agreement
Exhibit K       Form of Ship Mortgage
Exhibit L       Form of Assignment of Charter
Exhibit M       Form of Collateral Assignment
Exhibit N       Form of Amendment to Bareboat Charter Agreement
Exhibit O       Form of Assignment of Insurances
Exhibit P       Form of Debentures

==============================================================================
                                LOAN AGREEMENT


         This  LOAN AGREEMENT  dated as of  December 14,  1996 is  between TRB
HOLDING CORPORATION, a Delaware corporation  (the  Borrower ), READING & BATES
(U.K.) LIMITED, a  limited liability company organized  under the laws  of the
United Kingdom ( Reading  & Bates  (U.K.) ; the Borrower  and Reading &  Bates
(U.K.),  individually,  a  Company   and  collectively,  the  Companies )  and
NISSHO IWAI EUROPE PLC, an English corporation (the  Lender ).

         WHEREAS, the Borrower has  requested the Lender to make  available to
the  Borrower, subject to the terms and  conditions stated herein, a term loan
facility of  $38,000,000 to be  secured by a first  naval mortgage on  the oil
production  vessel  Seillean ,  a vessel  of 50,928  gross tons,  Call Letters
3FPF6  and Registration No. 25519-PEXT and with  the home port of Panama City,
the Republic of Panama (the  Vessel ), all revenue produced by such Vessel and
all rights of the Borrower or its Affiliates (as defined below) in any charter
of the Vessel; and 

         WHEREAS, the  Lender is willing,  upon and subject  to the  terms and
conditions hereof, to make such loan facilities available;

         NOW THEREFORE, the parties hereto agree as follows:

         Section 1.    Definitions and Accounting Matters.

         1.01     Certain Defined Terms.   As used herein, the following terms
shall have the  following meanings (all terms defined in  this Section 1.01 or
in other  provisions  of this  Agreement  in the  singular  to have  the  same
meanings when used in the plural and vice versa):

          Advance  means any advance  to the Borrower comprising a  portion of
the Loan made pursuant to Section 2.01 hereof.

          Affiliate   means, as to any Person, any other Person which directly
or indirectly controls, or is under  common control with, or is controlled by,
such  Person.    As  used  in  this  definition,   control   (including,  with
correlative meanings,   controlled by  and  under common  control with ) shall
mean possession,  directly or  indirectly, of  power  to direct  or cause  the
direction of management or policies  (whether through ownership of  securities
or  partnership or  other  ownership  interests,  by contract  or  otherwise),
provided that, in any event, any Person which owns directly or indirectly more
than 50%  of the securities having  ordinary voting power for  the election of
directors or other  governing body of  a corporation or  more than 50% of  the
partnership or other ownership interests of  any other Person (other than as a
limited  partner  of  such other  Person)  will  be  deemed  to  control  such
corporation or other Person.

          Agreement  means  this Loan Agreement, as the  same may from time to
time be amended or modified in accordance with the terms hereof.

          Applicable Lending Office  means  the lending  office of  the Lender
(or  of an  Affiliate of  the Lender)  below its  name on the  signature pages
hereof or such other office  of the Lender (or of an Affiliate  of the Lender)
as Lender may  from time  to time specify  in writing to  the Borrower as  the
office by which the Loan is to be made and/or issued and maintained.

          Applicable Margin  means 2% per annum. 

          Assignment  and Assumption  Agreement  means the  Novation Agreement
dated  on or about  the Drawdown Date  among the Borrower,  TRB Subsidiary and
RBDC.

          Assignment of  Charter  means  the General Assignments  made by  the
Borrower and  Reading & Bates  (U.K.) in favor of  the Lender, in  the form of
Exhibit L attached hereto or other collateral documents. 

          Assignment of Insurance Proceeds  means the Assignment of Insurances
made by the Companies in favor of  the Lender respecting their interest in the
Vessel, in the form of Exhibit O.

          Availability Period  means  the period  from and including  the date
hereof to but excluding the Commitment Termination Date.

          Bankruptcy Law  means any creditors  right, debtor relief or similar
laws  of  the United  States,  England  or the  Republic  of  Panama or  other
applicable jurisdiction.

          Bareboat Charter  means  the Bareboat Charter Agreement  dated as of
August 30, 1996  between Reading &  Bates (U.K.)  and RBDC  as amended  by the
Bareboat Charter Amendment, as such agreement may be further amended from time
to time in accordance with the terms hereof.

          Bareboat  Charter Amendment   means  the amendment  to the  Bareboat
Charter dated as  of December 14, 1996 between RBDC and  RB (U.K.) in the form
of Exhibit N.

          BP   means  BP  Exploration  Operating Company  Limited,  a  company
organized under the laws of England.

          Britoil   means Britoil PLC, a  company organized under  the laws of
England.

          Britoil (Beta)   means Britoil  (Beta) Limited, a  company organized
under the laws of England.

          Business Day  means any  day other  than a day  on which  commercial
banks are authorized or required to close in New York City or London.

          Capital Lease Obligations  means, as to any Person, the  obligations
of  such Person  to pay  rent or  other  amounts under  a lease  of (or  other
agreement  conveying the  right to  use) real  and/or personal  property which
obligations are required to be classified and accounted for as a capital lease
on a balance sheet of such Person under GAAP (including Statement of Financial
Accounting  Standards No. 13 of the Financial Accounting Standards Board) and,
for purposes  of this Agreement, the  amount of such obligations  shall be the
capitalized amount thereof, determined in accordance with GAAP (including such
Statement No. 13).

          Cash Flow  means, for any period, all cash received by the Companies
from any Charter  Agreement, including  the Donan Charter  Agreement, and  any
other sources  in respect of its  ownership or operation of  the Vessel during
such  period, less  all  the Borrower s  Operating  Expenses and  Dry  Docking
Expenses for such period.

          Charter Agreement   means the Donan  Charter Agreement or  any other
charter agreement respecting the chartering of Vessel to any other Person.

          Charter  Novation  Agreements    means  collectively,  the  Novation
Agreement dated July 10,  1996 among BP,  Britoil and  Britoil (Beta) and  the
Novation Agreement  dated August 30,  1996 among  Britoil (Beta), Britoil  and
Reading & Bates (U.K.).

          Closing Date   means the  date that this  Agreement is  executed and
delivered.

          Code  means the  Internal Revenue Code  of 1986, as amended,  or any
successor statute and the regulations promulgated thereunder.

          Collateral  Assignment  means  the Collateral Assignment  of Deposit
Account,  Pledge and Security Agreement  made by the Companies, the Lender and
the Lockbox Bank, in the form of Exhibit M attached hereto.

          Comfort Letter   means the letter from Reading & Bates to the Lender
in the form of Exhibit A attached hereto.

          Commitment   means   the  obligation,  subject  to   the  terms  and
conditions of  this Agreement, of  the Lender to make  a loan to  the Borrower
hereunder  up to an aggregate amount equal  to $38,000,000, as such amount may
be reduced pursuant to Section 2.02 hereof.

          Commitment  Termination Date   means  January 31, 1997,  unless  the
Commitment is sooner terminated pursuant to Section 2.02 hereof.

          Debentures  means the Debentures in the form of Exhibit P hereto.

          Default  means an Event of Default or an event which  with notice or
lapse  of time  or  both would,  unless cured  or waived,  become an  Event of
Default.

          Dollars  and  $  means lawful money of the United States of America.

          Donan Charter Agreement  means the Amended Agreement dated March 30,
1995 between  Britoil for itself and  on behalf of the  Donan Participants and
BP,  as modified  pursuant  to the  Charter  Novation Agreements  under  which
Reading & Bates  (U.K.) has assumed the  rights and obligations of  BP, as the
same may from time to time  be further amended or modified in accordance  with
the terms hereof.

          Donan Participants  means Britoil, Conoco (U.K.) Limited, OMV (U.K.)
Limited,  Croft Exploration Limited,  Pict Petroleum plc  and their successors
and assigns as parties  to the Unitisation and Unit  Operating Agreement dated
September 27, 1993, as amended.

          Drawdown  Date  means  the date  of the  drawdown of  the Commitment
which shall occur no later than January 31, 1997.

          Drawdown Notice   means  a  notice of  borrowing  delivered  by  the
Borrower pursuant to Section 3.01 hereof.

          Dry Docking Expense Account   has the meaning assigned to  such term
in the Collateral Assignment.

          Dry Docking Expenses  means a daily accrual of UK 1,829 per day that
the Vessel  is under hire to  cover drydock expenses for  the Vessel; provided
that no Dry Docking Expenses shall be accrued if the aggregate amount of funds
held in the Dry Docking Expense Account exceeds  UK 1,335,356.

          Environmental Loss  means any claim, demand, fine, penalty, cause of
action,  liability, damage,  forfeiture,  judgment or  loss, remediation,  and
other  clean up  costs  and  natural  resource  damages  respecting  Hazardous
Substances  or damage  to  the environment  under  applicable laws  (including
without limitation, reasonable attorneys   fees, defense and settlement costs,
and other reasonable costs and expenses incident thereto).

          ERISA  means the Employee Retirement Income Security Act of 1974, as
amended from time to time.

          ERISA Affiliate  shall mean any corporation which is a member of the
same  controlled group  of corporations as  the Company within  the meaning of
section 414(b)  of the Code, or  any trade or  business which is  under common
control with the Company within the meaning of section 414(c) of the Code.

          Event of Default  has the  meaning assigned to such term  in Section
8.01 hereof.

          Excess Cash  Flow   means,  for any  period, Cash Flow  less Working
Capital.

          GAAP  means United  States generally accepted  accounting principles
as in effect from time to time consistently applied.

          Governmental Approvals  has the meaning specified in Section 6.10(a)
hereof.

          Governmental Authority   means the United States  of America, United
Kingdom,  the Republic  of  Panama,  any  state  thereof,  and  any  political
subdivision  of any  of the  foregoing, including  but not limited  to courts,
departments,    commissions,   boards,    bureaus,    agencies,    or    other
instrumentalities.

          Guaranteed  Obligation    by  any  Person   means  any   obligation,
contingent or  otherwise, of such  Person directly or  indirectly guaranteeing
any  Indebtedness  of any  other Person  or  any other  obligation,  direct or
indirect, contingent or otherwise, of any other Person (a) to  purchase or pay
(or advance or supply funds for  the purchase or payment of) such Indebtedness
(whether  arising  by  virtue  of partnership  arrangements,  by  agreement to
keep-well, to purchase assets, goods, securities or services, to  take-or-pay,
or  to maintain  financial  statement  conditions  or  otherwise,  other  than
agreements to purchase goods at  an arm s length price in the  ordinary course
of business)  or other  obligation  or (b)  entered into  for  the purpose  of
assuring in  any  other  manner  the holder  of  such  Indebtedness  or  other
obligation of  the payment thereof or  to protect such holder  against loss in
respect  thereof (in  whole or  in part);  provided  that the  term Guaranteed
Obligation shall not  include endorsements  for collection or  deposit in  the
ordinary course of business.

          Hazardous Substance   means waste (in any form or combination) which
is any toxic,  caustic or otherwise hazardous  substance, including petroleum,
its  derivatives,   by-products  and   other  hydrocarbons,  regulated   under
applicable environmental statutes.

          Indebtedness    means,  as   to   any  Person   (determined  without
duplication):   (a) indebtedness of such Person for borrowed money (whether by
loan or the issuance and sale of debt securities) or for the deferred purchase
or acquisition price of  property or services, other than accounts payable and
accrued liabilities (other than  for borrowed money) incurred in  the ordinary
course of business of a term no longer than  120 days; (b) obligations of such
Person  in  respect of  letters  of credit  or  similar instruments  issued or
accepted by  banks and other  financial institutions for  the account of  such
Person;  (c) Capital  Lease Obligations  of such  Person; (d)  Operating Lease
Obligations  of such  Person;  (e) obligations  of such  Person  to redeem  or
otherwise retire shares of  capital stock of such Person; (f)  indebtedness of
others of the type described in clause (a), (b), (c), (d) or (e) above secured
by  a Lien  on the  property of  such Person,  whether or  not the  respective
obligation so secured has been assumed by such Person; and (f) indebtedness of
others of the  type described in clause (a),  (b), (c), (d), (e) or  (f) above
which is a Guaranteed Obligation of such Person.

          Indemnity  Matters    shall  mean   any  and  all   actions,  suits,
proceedings (including any investigations,  litigation or inquiries),  claims,
demands and  causes of  action made  or threatened against  a Person,  and, in
connection therewith,  all reasonable  costs, losses, liabilities,  damages or
expenses of any kind or nature whatsoever incurred by such Person.

          Interest Payment Date  means the last day of each Interest Period.

          Interest Period  means the period commencing on the date the Advance
is (a) made or (b) continued, and  ending on the fifteenth (15th) calendar day
in  the next month  thereafter, provided that the  first interest period shall
end on February 15, 1997.  If such fifteenth (15th) day is not a Business day,
the Interest Period shall be extended to the next succeeding Business Day.

          Investments  has the meaning  assigned to such term in  Section 7.11
hereof.

          LIBOR  means, for each Interest Period, the arithmetic mean (rounded
upward, if necessary,  to the nearest  whole multiple  of 1/16 of  1%) of  the
one-month  London  Inter-Bank Offered  Rates  for  deposits  in United  States
Dollars  as quoted  on Reuters  monitor page   LIBO  at  or about  11:00 a.m.,
London time on  the date  that is two  (2) London Business  Days prior to  the
first day of such Interest Period.  If only one such rate appears, LIBOR shall
be  such rate.   If  no such rates  appear, LIBOR  shall be  the rate (rounded
upwards if necessary to the nearest one  sixteenth of one per cent) in respect
of any Interest Period  determined by the Lender on the basis  of the rates at
which deposits in Dollars  are offered by the Reference Bank at or about 11:00
a.m.,  London time, on the day  that is two (2) London  Business Days prior to
the first day of such Interest Period or such other relevant period or at such
date, to prime  banks in London interbank  market for one (1)  month period on
that Interest Payment Date and in amount equal to the outstanding Loan balance
(after giving effect to any Advance) or such other relevant amount outstanding
as of the first day of such Interest Period or such other relevant period.

          Lien   means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest or encumbrance of any kind in respect of such asset.
For the  purposes of this Agreement, any Person shall be deemed to own subject
to  a Lien any asset  which such Person  has acquired or holds  subject to the
interest  of a vendor or lessor  under any conditional sale agreement, capital
lease or other title retention agreement relating to such asset.

          Liquid Investments   means  (a)  certificates  of  deposit  maturing
within 30 days  of the acquisition thereof or demand  deposits, denominated in
Dollars  and, in each  case, issued  by the  Lockbox Bank or  a bank  or trust
company  having combined  capital and  surplus of  at least  $250,000,000, and
having (or the holding  company controlling such institution having)  a short-
term rating of A-2 or better by Standard & Poors Corporation, or P-2 or better
by  Moody s Investor Services, Inc.,  or a substantially  equivalent rating by
any other rating agency satisfactory to the Lender; and (b) obligations issued
or guaranteed by the United  States of America, with maturities not  more than
one year after the date of issue.

          Loan   means  the loan  consisting of  the  Advance provided  for by
Section 2.01 hereof.

          Loan  Documents   means  this  Agreement,  the  Note,  the  Security
Instruments and any modifications, renewals or extensions thereof.

          Lockbox  means the account maintained  at the Lockbox Bank  pursuant
to the Collateral Assignment.

          Lockbox Bank  means  Sanwa Bank  Trust Company of  New York, or  any
other depositary  selected by the Lender  and approved by the  Borrower, which
approval shall not be unreasonably withheld or delayed.

          London Business Day  means any day in which commercial banks are not
authorized or required to close in London, England.

          Maturity Date  means, subject to Section 8.01, February 15, 2002.

          Maximum  Rate   means  the  maximum non-usurious  rate  of  interest
permitted by applicable law, as defined in Section 9.09.

          Minimum Payment  means,  for each  Repayment Date, an  amount to  be
repaid by the Borrower on the Loan on such Repayment Date, that shall be equal
to the sum of: (a) the  principal amount of the Loan outstanding on  the prior
Repayment Date divided by  the number of Repayment Dates  remaining during the
period from and  including such Repayment Date  to and including  the Maturity
Date plus (b)  the accrued and unpaid interest  on the Loan to  such Repayment
Date.

          Monthly  Statement  means, for any month, the bank account statement
for the Lockbox, and a report relating to the Vessel including but not limited
to  the number  of actual Operating  Days of  the Vessel  for such  month, the
status  of operations when  the Vessel is  on-hire and prospectus  of the next
employment of the Vessel when the Vessel is on off-hire;

          Multiemployer Plan   shall mean any  Plan which is  a  multiemployer
plan  (as such term is defined in section 4001(a)(3) of ERISA).

          New York Business Day   means any day in which commercial  banks are
not authorized or required to close in New York, New York.

          NIC  means Nissho Iwai Corporation, a Japanese corporation.

          NIC Parties  means NIC and the Lender.

          Note  has the meaning assigned to such term in Section 2.05 hereof.

          Obligations   means all obligations of the Borrower now or hereafter
existing  under the  Loan Documents,  whether for  principal,  interest, fees,
indemnities, costs, expenses or otherwise.

          Operating  Days   means,  for  any  period,  the  actual  number  of
operating days of the Vessel in that period.

          Operating Expenses  means, for any period, the expenses of operating
the Vessel for  such period  including direct payroll  and employee  benefits,
Vessel  maintenance,  catering,  freight,  other direct  operating  costs  and
general  and  administrative  expenses  as  allocated  in  a  manner  mutually
agreeable to  the Lender  and the  Borrower which  shall be equal  to a  daily
average  in the  aggregate  of  UK 18,209 (or  $30,000  as  determined by  the
currency  of  the Charter  Agreement in  effect during  such period)  for each
Operating Day in such period.

          Operating  Lease  Obligations  shall  mean,  as to  any  Person, the
obligations of such  person to pay rent or other amounts  under a lease of (or
other  agreement conveying  the right  to use)  real and/or  personal property
which obligations are  not required to  be classified and  accounted for as  a
liability for  a capital  lease on a  balance sheet  of such  Person and,  for
purposes  of this  Agreement, the  amount  of such  obligations  shall be  the
discounted present value of the lease  payments, discounted in the same manner
a capital lease would be discounted according to GAAP.

          Option   Agreement   means   the  Option   Agreement  dated   as  of
December 14, 1996 between the Borrower, TRB Subsidiary and  NIC, substantially
in the form of Exhibit J attached hereto. 

          Overdue Interest Rate   means, in  respect of any  principal of,  or
interest  on, the Loan or any  other amount payable by  the Borrower under any
Loan  Document which  is not  paid when  due (whether  at stated  maturity, by
acceleration or otherwise), a rate per  annum during the period commencing  on
the due date  until such amount is paid  in full equal to the sum  of LIBOR in
effect for such period plus 5% per annum.

          Participation Letter  means the  letter from Reading & Bates  to NIC
in the form of Exhibit H attached hereto.

          Partnership  has the  meaning assigned  to such term  in the  Option
Agreement.

          Partnership  Agreement  means  the organizational  agreement entered
into pursuant to the Option Agreement to form the Partnership.

          Permitted  Liens   means  (a)   liens  created  under  the  Security
Instruments or otherwise  in favor of  the Lender; (b)  maritime liens on  the
Vessel incurred and payable in the  ordinary course of business and arising by
operation  of  law  but  which shall  not  exceed  $500,000  in the  aggregate
outstanding at  any time  and none  of which shall  be past  due unless  being
contested in good faith and by  appropriate proceedings and for which adequate
reserves have been established on the books of the Borrower in accordance with
GAAP, provided  provision is then made  to the satisfaction of  the Lender for
the eventual payment  thereof in the event it is found that such is payable by
the  Borrower; (c) liens for taxes, assessments or other governmental charges,
levies or  claims not  at the  time delinquent  or thereafter  payable without
penalty or being  contested in good faith, and for  which adequate reserves in
accordance with  GAAP have been made  for the eventual payment  thereof in the
event it is found that such is payable by the Borrower; (d) liens of carriers,
warehousemen,  mechanics, materialmen,  vendors or  landlords incurred  in the
ordinary course  of business for sums  not overdue or being  contested in good
faith  and by  appropriate  proceedings, provided  provision  is made  to  the
satisfaction  of the Borrower for  which adequate reserves  in accordance with
GAAP  have been made for the eventual payment thereof in the event it is found
that  such  is payable  by the  Borrower;  (e) zoning  restrictions, licenses,
easements,  rights-of-way,  and  other  similar  charges  or  encumbrances  or
restrictions that are not Liens against any interest in the Vessel and further
are not interfering in any material respect with the business  of the Borrower
incurred in the ordinary course of business;

          Person  means an individual,  a corporation, a company,  a voluntary
association,  a partnership,  a  trust, an  unincorporated  organization or  a
government or any agency, instrumentality or political subdivision thereof, or
any other form of entity.

          Plan  means an  employee pension  benefit plan which  is covered  by
Title IV  of ERISA or subject  to the minimum funding  standards under Section
412 of the Code.

          Property   means  any interest  in any  kind  of property  or asset,
whether real, personal or mixed, or tangible or intangible.

          R&B Drilling   means  Reading  & Bates  Drilling  Co.,  an  Oklahoma
corporation.

          R&B  Parties  means Reading & Bates, RBDC, TRB Subsidiary, Reading &
Bates (U.K.) and any other Subsidiary of  Reading & Bates that is a party  to,
an  assignee of, or subcontractor respecting, any Transaction Document, but in
any event not the Borrower.

          Reading &  Bates   means Reading  &  Bates Corporation,  a  Delaware
corporation.

          RBDC  means Reading & Bates Development Co., a Delaware corporation.

          Reference Bank  means Sanwa Bank Limited, London Branch.

          Regulatory Change  means, with respect to the  Lender, any change on
or after  the date of  this Agreement  in United States,  English, Panamanian,
federal, state or foreign laws or regulations  or the adoption or making on or
after  such  date of  any  interpretations,  directives  or  written  requests
applying to  a class of banks  including the Lender or  its Applicable Lending
Office (whether or not having the force of law) of or  under any United States
federal  or state, English, Panamanian or any  foreign, laws or regulations by
any  court   or  governmental   or  monetary   authority   charged  with   the
interpretation or administration thereof.

          Repayment  Date  means subject to Section 8.01, the last day of each
Interest Period.

          Security   Instruments    means,   collectively,    the   Collateral
Assignment,  the  Assignment  of  Charter, the  Debenture,  the  Subordination
Agreement,  the Ship  Mortgage,  the  Assignment  of Insurance  Proceeds,  the
Comfort Letter   and any other agreements which may  be delivered from time to
time to secure the  obligations of the Borrower hereunder, and any amendments,
modifications, renewals or extensions thereof.

          Ship Mortgage   means the  First Naval Mortgage  dated December  14,
1996  made by the Borrower  in favor of the Lender,  as amended or modified in
accordance with this Agreement, in the form of Exhibit K attached hereto.

          Subordination  Agreement  means  the Subordination  and Postponement
Letter dated December 14, 1996, among Reading & Bates (U.K.), R&B Drilling and
the Lender.

          Subsidiary  means, with  respect to any  Person (the  parent ),  any
corporation or  other entity of which  at least a majority  of the outstanding
shares of  stock  or other  ownership interests  having by  the terms  thereof
ordinary voting power  to elect a majority  of the board of  directors of such
corporation  or other  governing body  of such  other entity  (irrespective of
whether  or  not at  the time  stock of  any  other class  or classes  of such
corporation, or another ownership interest of such other entity, shall have or
might have voting power  by reason of the happening of any  contingency) is at
the time directly  or indirectly owned or  controlled by the parent  or one or
more of the Subsidiaries of the parent or by the parent and one or more of the
Subsidiaries of the parent.

          Taxes  means any and  all present or future taxes,  levies, imposts,
deductions,  charges or  withholdings, and  any interest,  penalties or  other
liabilities with respect  thereto, excluding, in  the case of the  Lender, (i)
taxes imposed on its net income and (ii) franchise or similar taxes imposed on
it,  by the  jurisdiction (or  political subdivision  thereof) in which  it is
organized or has an Applicable Lending Office.

          Transaction Documents  mean  collectively, the  Loan Documents,  the
Vessel  Sales Agreement  (and any  guarantee of  any R&B  Parties  obligations
thereunder), the  Option Agreement, the Partnership  Agreement, Assignment and
Assumption Agreement,  the Bareboat Charter, the  Charter Novation Agreements,
any  Charter  Agreement (and  any guarantee  of  any R&B  Parties  obligations
thereunder) and the Donan Charter Agreement.

          TRB  Subsidiary   means  TRB  Subsidiary   Corporation,  a  Delaware
corporation.

          Uniform Commercial  Code  means  the Uniform Commercial  Code as  in
effect in the state or states referred to.

          Vessel  Sales  Agreement   means  the  Agreement  for the  Sale  and
Purchase of OPV   Seillean  dated as  of May 31,  1996 between Britoil  (Beta)
Limited and  RB Drilling Co.,  as novated  under the Novation  Agreement dated
August 30, 1996 among Britoil (Beta), RB Drilling Co. and RBDC, and as further
amended or modified in accordance with this Agreement.

          Working Capital  means,  for any  period, ten percent  (10%) of  the
Cash Flow.

         1.02     Accounting  Terms  and  Determinations.    Unless  otherwise
specified herein, all accounting  terms used herein shall be  interpreted, all
determinations with respect to accounting matters hereunder shall be made, and
all  financial statements and certificates and reports as to financial matters
required to be delivered hereunder shall be prepared, in accordance with GAAP.

         Section 2.    Commitment.

         2.01     Committed Loan.  The Lender agrees, on the terms and subject
to the terms and  conditions of this Agreement,  from time to time  during the
Availability  Period,  to make  an  Advance to  the Borrower  in  an aggregate
principal amount up to but not  exceeding the Commitment, as reduced from time
to time pursuant to Section 2.02 hereof.   The Commitment is not revolving  in
nature and the Borrower  may not reborrow under  this Section 2.01 any  amount
that has been previously repaid or prepaid.

         2.02     Changes of Commitment.

         (a)      Mandatory   Reductions.     Unless  earlier   terminated  in
accordance with Section 8.01, the Commitment shall terminate on the Commitment
Termination Date.   All unused portions of the Commitment  not utilized on the
Commitment Termination Date shall be terminated.

         (b)      No Reinstatement.    No  portion   of  the  Commitment  once
terminated or reduced may not be reinstated.

         2.03     Fees.  

         (a)      Management Fee.  The Borrower shall pay on the Drawdown Date
a management fee of 1.75% of the Loan.

         (b)      Commitment Fee.   On the Drawdown  Date, the Borrower  shall
pay to the  Lender a commitment fee  of 0.75% per  annum on the average  daily
maximum  amount of  the Commitment  calculated  from the  Closing Date  to the
Drawdown Date.

         (c)      No Refund  of Fees.  Once  paid, such fees are  fully earned
and non-refundable.

         2.04     Lending Offices.  The  Loan shall be made  and maintained at
the Applicable Lending Office.

         2.05     The Note.  The obligation of the  Borrower to repay the Loan
shall  be  evidenced  by  a  single  Note  of  the  Borrower  (the  Note )  in
substantially  the  form of  Exhibit  2.05  hereto,  dated the  date  of  this
Agreement, payable to the order of  the Lender in a principal amount  equal to
the Commitment, and otherwise duly completed.  The Lender is hereby authorized
by  the Borrower  to  endorse  on the  schedule  (or  a continuation  thereof)
attached to  the Note, to the extent  applicable, the date and  amount for the
Advance made by the Lender to  the Borrower hereunder, and the amount of  each
payment or  prepayment of principal  of such Advance  received by the  Lender,
provided that any failure by the Lender to make any such endorsement shall not
affect the obligations of the Borrower under the Note or  hereunder in respect
of such Advance.   Such  records shall  be deemed  conclusive absent  manifest
error.

         2.06     Use of Proceeds.   The proceeds of the Loan shall be used by
the Borrower to finance its purchase of the Vessel.

         Section 3.    Borrowings and Payments.

         3.01     Borrowings.  The Borrower shall notify the Lender in writing
of   borrowing to be  made hereunder at  least three Business  Days before the
Drawdown Date by delivery of  its Drawdown Notice in the form  of Exhibit 3.01
hereto, appropriately completed.  Subject to the  terms and conditions of this
Agreement,  not later than 1:00  p.m. New York time  on the Drawdown Date, the
Lender shall  make available the  amount of  the Advance as  set forth in  the
Borrower s Drawdown Notice  respecting such  Advance, for the  account of  the
Borrower by transferring funds to,  or for the account of, the Borrower at the
location specified in the Drawdown Notice.

         3.02     Optional Prepayments.   The Borrower shall have the right to
prepay the Loan,  in full but  not in part,  on any  Repayment Date after  the
first anniversary of the  Drawdown Date.  The Borrower shall pay to the Lender
on  the date of  prepayment a  prepayment premium of  two percent (2%)  of the
amount  of the  Loan prepaid.   Such  prepayment shall  be accompanied  by any
amounts payable under Section 4.03.   The Borrower shall notify the  Lender in
writing of such prepayment at least 60 days before the prepayment  date.  Such
notice shall be  irrevocable and the amount specified in  such notice shall be
due  and  payable   on  the   prepayment  date  specified   in  such   notice.
Notwithstanding  anything to the contrary  in this Section  3.02, the Borrower
shall have  the right  and obligation  to prepay  the Loan  in part without  a
prepayment premium or notice, pursuant to the Option Agreement.

         3.03     Repayment of Loan.   Subject to the terms of  this Agreement
(including without limitation Section 8), 

         (a)      The  Borrower shall repay the Loan on each Repayment Date in
an amount equal  to the greater  of (i) Excess  Cash Flow received  during the
month prior  to the  month  of each  Repayment  Date (the   Monthly  Period );
provided that  the first Monthly Period  shall be from the  Closing Date until
January 31, 1997,  and (ii) the Minimum Payment for such Repayment Date.  Each
repayment shall  be applied first to  accrued and unpaid interest  and then to
principal.

         (b)      In  its sole discretion, the Lender may agree to an increase
of  the amount of  Working Capital in the  event that Excess  Cash Flow, as so
reduced, appears that it will be sufficient to repay the Loan in full prior to
the Maturity Date.

         3.04     Interest.

         (a)      The  Borrower shall pay to the Lender interest on the unpaid
principal amount of the Loan for the period commencing on the date the Loan is
made to but excluding  the date the Loan shall be paid in  full, at a rate per
annum equal to the lesser of (i) LIBOR plus the then Applicable Margin or (ii)
the Maximum Rate.

         (b)      Notwithstanding any of the  foregoing, the Borrower will pay
to  the Lender interest  at a rate  per annum equal  to the lesser  of (i) the
applicable Overdue Interest Rate or (ii) the Maximum Rate on any principal of,
or interest  on, the  Loan and on  any other  amount payable  by the  Borrower
hereunder to or for the account of the Lender, which shall not be paid in full
when due (whether at stated maturity, by acceleration or otherwise and whether
the failure  to make such payment  constitutes a Default or  Event of Default,
regardless of the giving  or receipt of notice or the  lapse of any applicable
cure period), for the period commencing on the due date thereof until the same
is paid in full.

         (c)      Accrued and unpaid  interest on  the Loan shall  be due  and
payable on each Repayment Date and otherwise as set forth in Sections 3.02 and
3.03;  provided that interest  payable on the  Loan, or other  amounts payable
hereunder, accruing at the Overdue Interest Rate shall be payable from time to
time on demand of the Lender.

         (d)      Promptly  after  the  determination  of  any  interest  rate
provided for  herein or any  change therein, the  Lender shall use  reasonable
efforts to notify  the Borrower thereof; provided that the Lender s failure to
so  notify the Borrower shall not affect  the Borrower s obligation to pay the
Loan.  

         (e)      Interest  shall be computed  on the basis  of a year  of 360
days for actual  days elapsed (including the first day  but excluding the last
day) occurring in the period  for which such amounts are payable,  unless such
calculation would  exceed the Maximum  Rate, in  which case interest  shall be
calculated on the  per annum basis of a  year of 365 or 366 days,  as the case
may be.

         3.05     Payments.   Except to the extent  otherwise provided herein,
all payments of principal, interest, and other amounts which are to be made by
the  Borrower  hereunder and  under  the Note  shall  be made  in  Dollars, in
immediately  available funds  to  the  Lockbox  and  such  payments  shall  be
disbursed to  the  Lender from  the  Lockbox to  the  Lender s account  number
15012511 at The Chase Manhattan Bank, London Branch, not later than 11:00 a.m.
London time on the date on which such payment shall become due hereunder (each
such  payment received  after such  time on  such due  date  to be  deemed for
purposes  of calculating interest  to have  been made  on the  next succeeding
Business Day).   The amount of such payment shall be  calculated by the Lender
with notice of such amount to be given to the Borrower and the Lockbox Bank at
least four (4) Business Days prior to each Repayment Date.  The failure of the
Lockbox to contain at any time  sufficient funds to make any payment hereunder
shall not discharge  or release  the Borrower  or any  other Person  obligated
therefor from its liability to make such payment on the due date therefor.  If
the  due date of any payment hereunder  or under the Note would otherwise fall
on a day which  is not a Business Day such date shall  be extended to the next
succeeding  Business Day and interest shall be  payable for any payment (other
than interest) so extended for the period of such extension.

         3.06     Certain Notices.   Notices to the Lender  of terminations or
reductions of the Commitment, of borrowings, continuations and  prepayments of
the Loan shall  be irrevocable and shall be effective only  if received by the
Lender  not later than 12:00  noon London time on  the date specified for such
notice.

         3.07     Set-off; Sharing of Payments.  The Borrower agrees  that, in
addition to  (and without limitation of) any right of set-off, counterclaim or
other  right  or remedy  the Lender  may otherwise  have,  the Lender  and its
Affiliates shall be entitled, at its  option, to offset, appropriate and apply
any debt owing to  and any other funds held  in any manner for the  account of
the Borrower  against  any principal  of,  or interest  on,  the Loan  to  the
Borrower  hereunder, or other obligation  of the Borrower  hereunder, which is
not  paid when due (regardless  of whether such  balances are then  due to the
Borrower)  in  which  case it  shall  promptly  notify  the Borrower  thereof,
provided that  the Lender s failure to  give such notice shall  not affect the
validity thereof.

         Section 4.    Yield Protection and Illegality.

         4.01     Additional Costs.

         (a)      The Borrower shall pay  to the Lender from time  to time, on
an after-tax basis, such amounts  as the Lender may determine to  be necessary
to  compensate it  for any  additional costs  incurred by  the Lender,  or any
reduction in any amount  receivable by the Lender hereunder, which  the Lender
determines are attributable to its making or maintaining of the Loan hereunder
or its  obligation  to make  the  Loan hereunder  (such  additional costs  and
reductions  in amounts receivable being herein  called  Additional Costs ), in
each case resulting from any Regulatory Change which:

         (i)      other than changes which affect taxes measured by or imposed
     on the  overall net  income of  the Lender  or of  its Applicable  Lending
     Office for any  of such Loan by the  jurisdiction in which  the Lender has
     its principal  office or such Applicable  Lending Office,  imposes any tax
     with respect to the Loan,  or changes the basis of taxation of any amounts
     payable to  the Lender under this Agreement or the Note  in respect of any
     of such Loan; or

         (ii)     imposes  or modifies any  reserve, special  deposit, capital
     adequacy or  similar rule, regulation,  or treaty requirements  (including
     without  limitation,   any  such  requirement  imposed  by  the  Board  of
     Governors  of  the  Federal  Reserve  System,  the  Bank  of  England, the
     Japanese Central  Bank or  other monetary  authority,  but excluding  with
     respect  to  any  of  such  Loan  any  such  requirements  included in  an
     applicable  reserve requirement)  relating to any extensions  of credit or
     other assets of, or any deposits with or other liabilities of, the  Lender
     (including any of such Loan or any deposits  referred to in the definition
     of  LIBOR  in Section 1.01 hereof); or

         (iii)    imposes any other condition affecting this Agreement (or any
     of such extensions of credit or liabilities).

         (b)      Without limiting  the effect of the  foregoing provisions of
this Section 4.01, in the event that, by reason of any  Regulatory Change, the
Lender either (i)  incurs Additional Costs based on or  measured by the excess
above  a specified  level of  the amount of  a category  of deposits  or other
liabilities of  the Lender which includes  deposits by reference to  which the
interest rate  on the Loan  is determined as  provided in this Agreement  or a
category of  extensions of credit or other assets of the Lender which includes
the Loan  or (ii)  becomes subject  to restrictions  on the  amount of  such a
category of liabilities  or assets which it may  hold, then, if the  Lender so
elects by  notice to the Borrower,  the obligation of  the Lender to  make the
Loan hereunder shall be suspended until the date such Regulatory Change ceases
to be in effect.

         (c)      Determinations and allocations by the Lender for purposes of
this Section  4.01 of  the effect  of any  Regulatory Change on  its costs  of
maintaining its obligations to make  the Loan or of making or  maintaining the
Loan or on amounts receivable by it in respect of Loans, and of the additional
amounts required to compensate the Lender in respect of  any Additional Costs,
shall be  conclusive, provided  that such  determinations and  allocations are
made on  a reasonable basis.   In connection herewith the Lender  shall not be
required to prove that it actually funded the Loan,  in whole or in part, with
matching  deposits  in Dollars  acquired  from  a  prime  bank in  the  London
interbank market.

         4.02     Illegality.   Notwithstanding any  other  provision of  this
Agreement  to the  contrary, in  the event  that it  becomes unlawful  for the
Lender or  its Applicable Lending Office  to (a) honor its  obligation to make
the Loan hereunder,  or (b) maintain the Loan to  the Borrower hereunder, then
the  Lender  shall  promptly notify  the  Borrower  thereof  and the  Lender s
obligation  to make or  maintain the Loan  hereunder shall be  suspended until
such time as the Lender may again make and maintain the Loan to the Borrower.

         4.03     Compensation.    The  Borrower  shall promptly  pay  to  the
Lender, upon the  request of the Lender,  such amount or  amounts as shall  be
sufficient (in  the reasonable opinion of the Lender) to compensate it for any
loss, cost or expense incurred by it as a result of:

         (a)      any payment, prepayment of the Loan made to the Borrower for
any  reason  (including,  without limitation,  the  acceleration  of the  Loan
pursuant to Section  8.01) on a date  other than the  last day of an  Interest
Period for such Loan; or

         (b)      any  failure  by  the  Borrower for  any  reason  (including
without limitation, the failure  of any of the conditions  precedent specified
in Section 5  to be satisfied) to  borrow  an Advance specified  in a Drawdown
Notice delivered to the Lender on the date for such borrowing;

such  compensation  to include,  without limitation,  an  amount equal  to the
excess, if any, of (i) the amount of interest  which would have accrued on the
principal amount so paid, prepaid or not borrowed for the period from the date
of  such payment,  prepayment or  failure  to borrow  to the  last day  of the
Interest Period for such Advance (or, in  the case of a failure to borrow, the
Interest  Period for such  Advance which would  have commenced on  the date of
such failure  to borrow) at the  applicable rate of interest  for such Advance
provided for herein over (ii) the interest component (as reasonably determined
by the  Lender) of the  amount (as  reasonably determined by  the Lender)  the
Lender would  have bid in the  London interbank market for  Dollar deposits of
leading  banks in amounts comparable  to such principal  amount and maturities
comparable to such period. 

         4.04     Taxes.  (a) Any  and all payments by the  Borrower hereunder
shall be  made, in accordance with Section 3.05, free and clear of and without
deduction  or withholding  for any  Taxes,  except to  the extent  required by
applicable law.   If the Borrower shall be required  to deduct or withhold any
Taxes  from or  in respect  of any  sum payable  hereunder to  Lender (i)  the
Borrower  shall make such deductions  or withholding (ii)   the Borrower shall
pay the full  amount deducted or withheld to the  relevant taxing authority or
other governmental authority in  accordance with applicable law and  (iii) the
sum payable  shall be increased by  the amount necessary so  that after making
all  required deductions  or  withholding of  Taxes  (including deductions  or
withholdings  of  Taxes  applicable  to  additional  sums payable  under  this
Section 4.04) the Lender  shall receive an  amount equal to  the sum it  would
have received had no such deductions been made.

         (b)      The  Borrower  agrees to  indemnify  and  hold harmless  the
Lender for any Taxes  imposed on or incurred by  the Lender in respect  of any
sum  payable hereunder to  the Lender (including any  Taxes on amounts payable
under this Section  4.04).  Payment  under this indemnification shall  be made
within 30  days  after  the date  the  Lender makes  written  demand  therefor
describing such Taxes in reasonable detail.

         (c)      As soon as practicable after the date  of any payment by the
Borrower of  Taxes under this  Section 4.04,  the Borrower  shall furnish  the
Lender the original or a certified copy of an official receipt evidencing such
payment, or such other evidence  of payment as may be  reasonably satisfactory
to the Lender.  

         (d)      Lender  shall repay the Borrower  for any Taxes  paid by the
Borrower which the Lender utilizes against its tax liability.

         Section 5.    Conditions Precedent.

         5.01     Advance.  The obligation  of the Lender to make  the Advance
hereunder  is subject  to the  following conditions  precedent, each  of which
shall have been fulfilled to the satisfaction of the Lender:

         (a)      Corporate Action.  The  Lender shall have received certified
copies of the  charter and by-laws of the Borrower, Reading & Bates (U.K.) and
TRB  Subsidiary, all corporate  action taken by the  Borrower, Reading & Bates
(U.K.), TRB  Subsidiary and R&B  Drilling authorizing the  execution, delivery
and performance of the Transaction  Documents to which such Person is  a party
(including, without limitation,  a certificate of  the Borrower setting  forth
the  resolutions  of  its  Board  of  Directors  authorizing the  transactions
contemplated thereby).

         (b)      Incumbency.   Each  of the  Borrower, Reading  & Bates,  TRB
Subsidiary, R&B Drilling, and Reading  & Bates (U.K.) shall have  delivered to
the Lender a certificate in  respect of the name and signature of  each of the
officers (i) who is authorized to sign on its behalf the Transaction Documents
and  (ii) who will,  until  replaced  by  another  officer  or  officers  duly
authorized for that  purpose, act as  its representative for  the purposes  of
signing documents  and giving notices  and other communications  in connection
with  the  Transaction Documents  to which  it  is a  party.   The  Lender may
conclusively rely on  such certificates  until it receives  notice in  writing
from such Person to the contrary.

         (c)      Loan Documents  and Lien Perfection.  The  Lender shall have
received counterparts of this Agreement executed and delivered by or on behalf
of each of  the parties hereto.  The Lender shall have received the Note, duly
completed and  executed.  Each  of Security  Instruments shall have  been duly
executed and delivered, and such other action (including,  without limitation,
filing  of the  Ship Mortgage,  the Assignment  of Charter,  and appropriately
completed  and duly executed Uniform  Commercial Code financing statements and
other documents  in the  State of  Texas, the Republic  of Panama,  the United
Kingdom and  other jurisdictions) as may  be necessary or as  the Lender shall
have reasonably  requested to perfect the security  interests created pursuant
thereto as first priority liens shall have been taken.

         (d)      Lien  Searches.   The  Lender  shall  have received  filings
searches  in  the  name of  Reading  &  Bates  (U.K.)  and the  Borrower,  TRB
Subsidiary  and their respective predecessors in interest during the past five
years (to the extent subject to the Uniform Commercial Code) from English ship
and  companies   registries and  Panamanian  and  U.S. registries  showing  no
filings  of record except  (i) those in  favor of the  Lender, (ii) those with
respect to Permitted  Liens, or (iii) those for which  releases or termination
statements are filed  on or prior (or  immediately subsequent) to the  Closing
Date. 

         (e)      Insurance.   The Borrower and  Reading & Bates  (U.K.) shall
have   delivered  to  the  Lender  a  certificate  of  an  insurer  reasonably
satisfactory to the Lender  listing the coverages maintained by  the Borrower,
which coverages shall be acceptable to  the Lender and stating that the Lender
has been named loss payee  with first priority to receive payments  (except as
otherwise  provided in the Ship Mortgage) in respect of any property insurance
on the Vessel and each of the NIC Parties as an additional insured thereunder.

         (f)      Fees  and Expenses.   The  Borrower shall  have paid  to the
Lender all  amounts due under Sections  2.03 and 9.03 hereof on  or before the
Drawdown Date.

         (g)      Legal Opinions.  The Lender  shall have received the opinion
of (a) Wayne  K. Hillin, counsel to the Borrower, substantially in the form of
Exhibit B attached hereto, (b) Baker  & Botts, L.L.P., counsel to the  Lender,
substantially in the form  of Exhibit C attached hereto,  (c) Icaza, Gonzalez-
Ruiz &  Aleman, Panamanian counsel to the Lender, substantially in the form of
Exhibit D attached  hereto, (d) Denton  Hall, English counsel  to the  Lender,
substantially in the form of Exhibit E attached hereto, and (e) Cayman Islands
counsel, substantially  in the form  of Exhibit  F with any  changes that  are
reasonably satisfactory to the Lender.

         (h)      Environmental Matters Limitation of Liability Legal Opinion.
The Lender  shall have  received the  opinion of  MacFarlanes, counsel to  the
Borrower,  in the  form of  Exhibit  G attached  hereto, with  respect to  the
environmental condition  (including conditions with respect  to oil pollution)
of the properties  of the Borrower and Reading & Bates  (U.K.) in the form and
substance reasonable satisfactory to the Lender.  

         (i)      Evidence  of  Approvals.   The  Lender  shall have  received
evidence in form and substance reasonably satisfactory to the Lender that each
R&B  Party has obtained all orders, consents, approvals and authorizations and
have made  all filings  and  other notifications  (governmental or  otherwise)
required in connection with  this Agreement, or the transactions  contemplated
hereby.

         (j)      Registered Agent.   The Lender shall  have received evidence
of the  agreement by  Prentice-Hall  Corporation System  to act  as agent  for
service of  process in New York on behalf of  the Borrower with respect to the
Transaction Documents to which it is a party and that R&B (U.K.) has agreed to
act  as agent for service  of process in  the United Kingdom on  behalf of the
Borrower with respect to the Transaction Documents to which it is a party.

         (k)      Transaction  Documents.    The  Lender  shall have  received
executed copies  of each of the  Transaction Documents, in form  and substance
reasonably satisfactory to the Lender.

         (l)      No  Material  Adverse Change.    There  shall have  been  no
material adverse change  since December  31, 1995 in  the business,  financial
condition, operations  or properties of  the Borrower,  or the ability  of the
Borrower  or  any  other  R&B  Party  to perform  its  obligations  under  the
Transaction Documents.

         (m)      Britoil  Acknowledgment.    Britoil shall,  to  protect  the
Lender s  Lien  in  the  Donan  Charter  Agreement  and  the  amounts  payable
thereunder,  acknowledge the assignment of such rights under the Assignment of
Charter and agree to direct its  payments under the Donan Charter Agreement to
the Lockbox Account, in the form of Exhibit I attached hereto.

         (n)      Advance.   The advance shall occur no later than January 31,
1997.

         (o)      No  Default.    No  Default  shall  have  occurred   and  be
continuing. 

         (p)      Representations.  The representations and warranties made by
the Companies, and to the best of the Companies  knowledge, of the R&B Parties
and Britoil in each Transaction Document to  which it is a party shall be true
on and as of the date of the making of such Advance in all  material respects,
with the same force and effect  as if made on and  as of such date (except  to
the extent such  representations and  warranties are expressly  limited to  an
earlier date or the Lender may expressly consent in writing to the contrary).

         (q)      No  Violation.  The making of such Advance shall not violate
any law, rule, regulation or order applicable to the Lender or the Borrower.

         (r)      Other Matters.   The Lender shall  have received such  other
documents and assurances relating  to the transactions contemplated hereby  as
the Lender may reasonably request.

         (s)      Bareboat Charter Amendment.   The Lender shall have received
an executed copy of the amendment to the Bareboat Charter Amendment.

         (t)      Comfort Letter  and Participation Letter.   The Lender shall
have received an executed copy of the Comfort Letter and Participation Letter.

         (u)      Partnership Agreement.   The Partnership shall  be formed in
accordance with the terms of the Option Agreement.

         (v)      Excess Cash.  The Companies shall have deposited Excess Cash
for the  period from  the Closing  Date to  the Drawdown  Date in  the Lockbox
Account and the Lender shall have to receive the details of the computation of
such amount.

         (w)      Drawdown  Notice.   The  Borrower  shall  have executed  and
delivered  the Drawdown Notice which  shall constitute a  certification by the
Borrower  to the effect set forth  in the conditions to  the Advance have been
and  will be satisfied  (both as of  the date of  such notice and,  unless the
Borrower otherwise notifies the Lender prior to the date of  such borrowing or
issuance, as of the date of such borrowing or issuance).

         Section 6.    Representations and Warranties.  Each of the  Companies
represents and warrants to the Lender with respect to itself only as follows:

         6.01     Corporate  Existence.   The Borrower:  (a) is  a corporation
duly incorporated, validly existing and in good standing under the laws of the
State of Delaware;  (b) has requisite  corporate power, and  has all  material
governmental licenses,  authorizations, consents and  approvals necessary,  to
own its assets  and carry on its  business as now being conducted;  and (c) is
qualified  to do  business in  all jurisdictions  in which  the nature  of the
business  conducted by it makes such qualification necessary and where failure
so to qualify would have a material adverse effect on the financial condition,
prospects,  operations, properties  or  business of  the  Borrower or  on  its
ability to perform its obligations under each Transaction Document to which it
is a party.  Reading & Bates  (U.K.): (a) is a limited liability company, duly
organized, validly  existing and in good  standing under the laws  of England;
(b) has requisite corporate power, and has all material governmental licenses,
authorizations,  consents and approvals necessary, to own its assets and carry
on its business as now being conducted; and (c) is qualified to do business in
all jurisdictions  in which the nature  of the business conducted  by it makes
such qualification  necessary and  where failure  so to  qualify would have  a
material  adverse effect  on the  financial condition,  prospects, operations,
properties or business of Reading & Bates (U.K.) or on its  ability to perform
its obligations under each Transaction Document to which it is a party.

         6.02     Information; Material Adverse Change.  (a) Each Company has,
to its  best knowledge, disclosed to  the Lender in writing any  and all facts
(other  than general  economic or  industry information  not specific  to such
Company)  which are reasonably likely  to materially and  adversely affect the
business,  financial condition,  prospects, operations  or properties  of such
Company or  the  ability of  any  Company or  any  R&B  Party to  perform  its
obligations under each Transaction Documents to which it is a party.

         (b)      Since the execution date of this Agreement there has been no
material  adverse  change in  the  business,  financial condition,  prospects,
operations or properties of either  Company or in its ability or,  to the best
of   the  Companies   knowledge,  any  R&B  Party s  ability  to  perform  its
obligations under each Transaction Document to which it is a party.

         6.03     Litigation.  There is  no litigation, legal,  administrative
or  arbitral proceeding, investigation or  other action of  any nature pending
or,  to the  knowledge of  each Company,  threatened  against such  Company or
affecting  its property which could reasonably be  expected to have a material
adverse effect on the business, financial  condition, prospects, operations or
properties of such Company or on  its ability to perform its obligations under
each Transaction Document to which it is a party.

         6.04     No Breach.    None of  the  execution  and delivery  of  the
Transaction Documents by each Company, the consummation by each Company of the
transactions  therein contemplated, or compliance  by each Company  and to the
best  of  the  Companies   knowledge,  the  R&B  Parties  with the  terms  and
provisions thereof will (a) conflict with or result in a breach of, or require
any consent  not already  obtained under,  (i) the charter or  by-laws of  the
Companies  or  (ii) any  law or  regulation  applicable  to  the Companies  or
(iii) any  order,  writ, injunction  or decree  of  any court  or governmental
authority or  agency  applicable to  the  Companies, or  (iv) the  Transaction
Documents  or any  other  material agreement  or  instrument to  which  either
Company is a party  or by which it is bound or to  which any of its properties
is subject, or (b) constitute a default  under any such material agreement  or
instrument, or (c) (except for the Liens created pursuant to, or permitted by,
this  Agreement  and  the Security  Instruments)  result  in  the creation  or
imposition of any Lien upon any assets  of the Companies pursuant to the terms
of any  such  material agreement  or  instrument.   No  Default hereunder  has
occurred and is continuing.

         6.05     Corporate Action.  Each  Company has all necessary corporate
power and authority to execute, deliver and perform  its obligations under the
Transaction Documents  to which it is a party; and the execution, delivery and
performance by such Person of the Transaction Documents to which it is a party
have  been duly  authorized  by  all  necessary  corporate  action;  and  this
Agreement and the other Transaction Documents to which each Company is a party
have  been  duly  and validly  executed  and  delivered  by  each Company  and
constitute the  legal, valid and  binding obligation of each  Company, in each
case, enforceable in accordance  with its terms, except as  the enforceability
thereof may be limited by bankruptcy, insolvency, reorganization or moratorium
or  other  similar  laws relating  to  the  enforcement  of creditors   rights
generally and  by  general equitable  principles.   The  Security  Instruments
create legal,  valid,  and binding  Liens  in the  Properties intended  to  be
encumbered thereby as  security for the  Obligations and such Liens  have been
perfected, subject only to Permitted Liens.

         6.06     Approvals.   Each Company  has obtained  all authorizations,
approvals and consents of,  and have made all filings and  registrations with,
any court or governmental or regulatory authority or agency  necessary for the
execution,  delivery or  performance  by  each  of  them  of  the  Transaction
Documents  to   which  such  Person  is  a  party,  or  for  the  validity  or
enforceability thereof.
  
         6.07     ERISA and Pension Plans.   No accumulated funding deficiency
(as defined in section 302 of  ERISA and section 412 of the Code),  whether or
not waived, exists with respect to any Plan (other than a Multiemployer Plan).
No  liability to  the  Pension Benefit  Guaranty  Corporation has  been  or is
expected by the Borrower or any ERISA Affiliate to be incurred with respect to
any Plan (other than a Multiemployer Plan) by the Borrower,  any Subsidiary or
any ERISA Affiliate  which is or would be materially  adverse to the business,
condition  (financial  or otherwise)  or operations  of  the Borrower  and its
Subsidiaries taken  as a whole.   Neither the Borrower, any  Subsidiary or any
ERISA  Affiliate has  incurred or  presently expects  to incur  any withdrawal
liability under Title IV of ERISA with respect to any Multiemployer Plan which
is or  would be materially  adverse to  the business, condition  (financial or
otherwise) or  operations  of the  Borrower and  its Subsidiaries  taken as  a
whole.  The execution and delivery of this Agreement and the issuance and sale
of the Notes will be exempt from, or will not involve any transaction which is
subject to, the  prohibitions of section 406 of ERISA and will not involve any
transaction in connection with which a  penalty could be imposed under section
502(i)  of ERISA  or a tax  could be imposed  pursuant to section  4975 of the
Code. 

         6.08     Taxes.  Each  Company has filed  all United States  Federal,
Panamanian and English  income tax returns and all other  material tax returns
which are required to  be filed by it and  has paid all taxes due  pursuant to
such  returns or  pursuant to  any assessment  received by  it, except  to the
extent the same  may be contested as permitted  by Section 7.02 hereof  or any
failure to so  file or pay which  could not reasonably  be expected to have  a
material adverse effect  on the business,  financial condition, operations  or
properties  of such Company or  on the ability of such  Company to perform its
obligations  under each  Transaction Document  to which  it is  a party.   The
charges,  accruals and  reserves on the  books of  each Company  in respect of
taxes and  other governmental charges are,  in the reasonable  opinion of such
Company, adequate.

         6.09     Ownership  and Use of Properties.  Each Company will have on
the date of  the Advance and at all times thereafter good and marketable title
or  ownership  of, or  the  right to  use  pursuant to  enforceable  and valid
agreements  or arrangements, all tangible property, both real and personal and
all franchises,  licenses, copyrights, patents  and know-how, other  than such
property, the failure to own or otherwise hold might reasonably be expected to
have  a  material  adverse  effect  on  the  business,   financial  condition,
operations  or properties of  such Company or  the ability of  such Company to
perform  its obligations  under each  Transaction Document  to  which it  is a
party.  All of the assets and Properties of the Companies which are reasonably
necessary for the operation of their  businesses are in good working condition
and are maintained in accordance with prudent business standards.

         6.10     Environmental Matters. 

         (a)      (i)  Each  Company is,  and to  the  best knowledge  of each
Company,   each  other  R&B  Party  is,  in  compliance  with  all  applicable
environmental  laws  respecting the  Vessel  and the  Donan  Charter Agreement
except for such noncompliance which could not reasonably be expected to have a
material  adverse effect on  the business, financial  condition, operations or
properties or  Vessel of  such  Company, or  the ability  of  each Company  to
perform  its obligations  under each  Transaction Document  to which  it is  a
party, (ii) each Company has, and to the knowledge of such Company, each other
R&B Party has, all decisions, permits, licenses, rulings, consents, agreements
and   other   authorizations   of   any   applicable   Governmental  Authority
(collectively,  the    Governmental  Approvals )   required  to   perform  its
obligations respecting  the Vessel  and any  Charter Agreement, including  the
Donan  Charter  Agreement, (iii)  each Company  and to  the knowledge  of each
Company, each other R&B Party has not, received any written communication from
a Governmental Authority, court or third party that alleges that such  Company
or  such  other R&B  Party  is  not in  full  compliance  with all  applicable
environmental laws  and Governmental Approvals  respecting the Vessel  and the
Donan Charter Agreement  other than such noncompliance which could  not have a
material adverse  effect on the  business, financial condition,  operations or
properties  of such  Company or,  to the  knowledge of  such Company,  any R&B
Party, or  the ability of such  Company to perform its  obligations under each
Transaction Document to which it is a party, (iv) to each Company s knowledge,
there are  no circumstances that  could reasonably  be expected to  prevent or
adversely interfere with such Company s compliance with environmental laws  in
the  future  as  far  as  such  Company  may  reasonably   foresee  and  which
noncompliance  could have a material adverse effect on the business, financial
condition, operations  or properties of such  Company, or the  ability of such
Company  or  any  other R&B  Party  to  perform  its  obligations  under  each
Transaction  Document to which it is  a party and shall  keep the Lender fully
indemnified  at all  times against  all losses,  claims or  demands whatsoever
arising directly or indirectly  from any breach of this  obligation, including
any liability in respect of such matters.

         (b)      To the knowledge of each Company, there are no past, present
or   pending  actions,  activities,   circumstances,  conditions,   events  or
incidents, including,  without limitation,  the release,  emission, discharge,
presence  or disposal  of any  Hazardous Substance,  that could  reasonably be
expected to  form the basis of  any Environmental Loss  against either Company
or,  to the knowledge of each Company, any  other R&B Party which could have a
material adverse effect  on the business,  financial condition, operations  or
properties of either Company or the ability of either Company or any other R&B
Party to  perform its obligations under each  Transaction Document to which it
is a party.

         6.11     Insurance.   Each Company  maintains insurance  described on
Exhibit 6.11 and all such policies are in full force and effect, and no notice
of a  material cancellation or  termination (which has  not been  withdrawn or
revoked) has been received with respect to any such policy.  Such policies are
sufficient  for compliance  with all material  requirements of law  and of all
material agreements to which each Company is a party.

         6.12     Operations.

         The Borrower  has delivered to the Lender a true and complete copy of
each of the executed Transaction Documents.  There have been  no amendments or
modifications  of  such  agreements  (other  than,  after  the  date  of  this
Agreement, amendments or modifications permitted under Section 7.19), no party
to such agreements is in default of the terms thereof and such  agreements are
in full force and effect.  The representations and warranties of each Company,
and to the best knowledge of each Company, the  other R&B Parties contained in
such agreements are true  and correct in all  material respects.   Transaction
Documents currently required for  the ownership, operation and maintenance  of
the  Vessel under  the Charter are  in full  force and effect  in all material
respects.    There are  no material  agreements, instruments  and undertakings
among the Companies and any other R&B Party  relating to the Companies and the
Vessel other than the Transaction Documents.

         Section 7.    Covenants.  Unless the Lender shall  agree otherwise as
contemplated by Section 9.05 hereof, each Company (with respect to all matters
in this Section 7) agrees, so long  as any of the Commitment is in  effect and
until payment  in full  of all the  Loan all  interest thereon  and all  other
amounts payable  by the Borrower  to the  Lender hereunder, to  comply in  all
material respects with the covenants contained in this Section 7.

         7.01     Statements.  The Borrower shall deliver to Lender:

         (a)      as soon as  available and in any event within 120 days after
the end of each  fiscal year of each of  the Borrower and Reading &  Bates the
audited consolidated  statements of operations, stockholders   equity and cash
flow  of the  Borrower and  Reading &  Bates, setting  forth in  each  case in
comparative  form the corresponding figures for the preceding fiscal year, and
accompanied  by  an opinion  on such  statements  of an  independent certified
public  accounting  firm of  recognized  national standing  acceptable  to the
Lender (such  accountants being called herein   Reporting Accountants ), which
opinion  shall state  that such  financial statements  present fairly,  in all
material respects, the financial position of each of the Borrower  and Reading
& Bates as of the end of, and the respective results of operations of  each of
the  Borrower and Reading  & Bates for,  such fiscal year,  in conformity with
GAAP;

         (b)      as soon as available and in any event within 2 Business Days
after  Borrower s receipt  of  the Lockbox  bank  account statement  from  the
Lockbox Bank, the Monthly Statement and a list of all Drydocking Expenses paid
in such month, with copies of all supporting documents, including the invoices
for Drydocking Expenses;

         (c)      promptly following  the delivery thereof to  the Borrower or
to  the Board  of  Directors or  management of  the  Borrower, a  copy of  any
management  letter  or  written   report  by  independent  public  accountants
addressed to the  Board of Directors of the  Borrower or any committee  of any
such board with respect to the financial  condition, operations or business of
the Borrower  (except for  such letters  or reports which  relate only  to tax
planning for the Borrower);

         (d)      promptly after the Borrower knows or has reason to know that
any  Default  has occurred  and  is  continuing,  a  notice of  such  Default,
describing the same in reasonable detail;

         (e)      promptly after  delivery or  receipt thereof, copies  of all
notices or documents given or received by the Borrower pursuant  to any of the
Transaction Documents  concerning (i) any  default or  alleged default  under,
breach or alleged breach of,  or the noncompliance with, any provision  of any
Transaction  Document, (ii)  any prospective  inability to  perform  under any
provision  of any  Transaction Document,  (iii) any  termination or  attempted
termination  of  any  Transaction   Document,  (iv)  any  proposed  amendment,
supplement  or other modification of  any Transaction Document  that under the
Loan Documents requires  the approval of Lender, or (v)  any Force Majeure, in
each case,  which  might reasonably  be expected  to have  a material  adverse
effect on the Borrower;

         (f)      promptly  and in any  event within five  Business Days after
the  existence  of any  of  the  following  conditions,  a certificate  of  an
authorized  officer of the Borrower specifying in reasonable detail the nature
of such  condition and the  Borrower s or other R&B  Party s proposed response
thereto:   (i)  the receipt  by  the Borrower  after  the date  hereof of  any
communication  (written or  oral) from  a Governmental Authority  that alleges
that any  R&B Party is not in compliance with applicable environmental laws or
Governmental  Approvals  which noncompliance  could  have  a material  adverse
effect on the business,  financial condition, operations or properties  of the
Borrower  or the ability of the Borrower or any other R&B Party to perform its
obligations in any material  respect under each Transaction Document  to which
it  is a  party, (ii) the  Borrower shall  obtain actual knowledge  that there
exists  any Environmental  Loss pending  or threatened  against any  other R&B
Party which could  have a material adverse  effect on the business,  financial
condition, operations  or properties of  the Borrower  or the  ability of  the
Borrower  or any other  R&B Party to  perform its obligations  in any material
respect  under each Transaction Document to which  it is a party, or (iii) the
Borrower  obtains  actual knowledge  of  any release,  emission,  discharge or
disposal  of  any  Hazardous  Substance  that could  form  the  basis  of  any
Environmental  Loss against any  other R&B Party  which could  have a material
adverse effect on  the business, financial condition, operations or properties
of  the Borrower  or the ability  of the  Borrower or  any other R&B  Party to
perform  its  obligations  in  any  material  respect under  each  Transaction
Document to  which it  is a party.   The  Borrower will  also maintain at  the
Vessel  and  make  available for  inspection  by  Lender  and  its agents  and
employees,  accurate  and complete  records  of  all investigations,  studies,
sampling  and testing conducted, and  all material remedial  actions taken, by
the Borrower or,  to its knowledge and to the extent obtained by the Borrower,
by  any Governmental  Authority  or  other  Person  in  respect  of  Hazardous
Substances on or affecting the Vessel; 

         (g)      within  30 days  after  the Borrower s  fiscal quarter,  the
quarterly financial statements of the Borrower; and

         (h)      concurrently with the  delivery by a Company  to a charterer
under a  Charter Agreement,  a copy  of any  invoice of  fees  due under  such
Charter Agreement (including the actual operating days in such period, the oil
volume rate for such period, and the tariffs paid for such period);

         (i)      within five Business Days  of its execution, a copy  of each
Charter Agreement; and

         (j)      from  time  to  time  such  other  information  and  reports
regarding  the matters described above  or otherwise concerning  the Vessel or
the financial condition, operations, business or properties of the Borrower as
the Lender may reasonably request.

The Borrower will  furnish to the Lender, at the time it furnishes each set of
financial statements pursuant to paragraph (a) or (b) above, a certificate  of
its chief executive officer or  chief financial officer to the effect  that no
Default has occurred and is continuing (or, if any Default has occurred and is
continuing, describing the  same in reasonable detail and the  action taken by
or proposed to be taken by the Borrower with respect thereto).

         7.02     Taxes and Claims.   Each Company will pay  and discharge all
material taxes, assessments and governmental charges or levies imposed upon it
or upon its income or profits, or upon any property belonging  to it, prior to
the date  on which penalties attach  thereto, and all lawful  claims which, if
unpaid, might become a Lien (other than a Permitted Lien) upon the property of
such Company; provided that such Company shall not be required to pay any such
tax, assessment, charge, levy or claim  which is being contested in good faith
and  by appropriate proceedings if it maintains adequate reserves with respect
thereto.

         7.03     Insurance.    Each  Company  will  maintain  insurance  with
responsible companies, in the amounts and against the risks as is set forth in
Schedule 6.11, which coverage shall be the maximum available in the market.

         7.04     Maintenance of Existence; Conduct of Business.  Each Company
will preserve and  maintain its corporate or other legal  existence and all of
its  material  rights, privileges  and  franchises  necessary for  the  normal
conduct of its business.  Except as permitted by this  Agreement, each Company
will  maintain  in force  and effect  all  permits, licenses,  patents, patent
rights,  trademarks, trademark  rights,  trade names,  trade  name rights  and
copyrights, the release or termination of which would  have a material adverse
effect  on the business, financial condition, operations or properties of each
Company, or on the ability of each Company to perform in any  material respect
its obligations under each Transaction Document to which it is a party.

         7.05     Maintenance of and Access to Properties.       Except   with
respect  to assets permitted to be  disposed of pursuant to Section 7.09, each
Company  will  keep  all  of  its  properties  necessary  in  its  business in
reasonable working order and  condition, ordinary wear and tear  excepted, and
will  permit representatives  of the  Lender during  normal business  hours to
inspect the  Vessel, its other locations  and other properties and  to examine
and make  such extracts and copies from the  books and records of each Company
as they may reasonably request.  

         7.06     Compliance with Applicable Laws.  Each  Company will  comply
with the requirements of all applicable laws, rules, regulations and orders of
any governmental body or regulatory authority, a breach of which  would have a
material adverse  effect on the  business, financial condition,  operations or
properties  of such Company or  on the ability of such  Company to perform its
obligations in any material  respect under each Transaction Document  to which
it  is a  party,  except where  contested  in good  faith  and by  appropriate
proceedings.

         7.07     Litigation.  Each Company will promptly notify the Lender in
writing  (a) of all judgments against  such Company and  (b) of all litigation
and of all proceedings of which it is aware before  any courts, arbitrators or
governmental or regulatory agencies to which any Company or any R&B Party is a
party,  affecting  the Transaction  Documents or  making  claims in  excess of
$500,000 or litigation or proceedings which, individually or in the aggregate,
if  adversely determined  could  reasonably be  expected  to have  a  material
adverse  effect   upon  the  business,  financial   condition,  operations  or
properties of either Company or on the ability of either Company to perform in
any  material respect its obligations under each Transaction Document to which
it is a party.

         7.08     Indebtedness.  The Borrower will not create, incur or suffer
to exist any Indebtedness except:

         (a)      Indebtedness to the Lender hereunder; 

         (b)      other Indebtedness owed to  the R&B Parties so long  as such
     Indebtedness is not to be  repaid prior to  this Loan being paid in  full,
     and such Indebtedness is subordinated on terms no less  favorable than the
     terms set forth on Exhibit 7.08;

         (c)      other Indebtedness incurred  with the prior written  consent
     of the Lender.

         7.09     Mergers, Etc.  Neither Company will be a party to any merger
or consolidation, or sell, lease, assign, transfer or otherwise dispose of any
assets,  or acquire assets from any Person,  other than in the ordinary course
of business, except: 

         (a)      dispositions  of obsolete inventory  or obsolete or worn-out
     equipment; or

         (b)      dispositions  or acquisitions of Investments permitted under
     Section 7.11 hereof.

         7.10     Liens.  The Borrower and RB (U.K.) will not create or suffer
to exist any Lien upon any  of its property or assets, now owned  or hereafter
acquired,  securing  any Indebtedness  or  other  obligation except  Permitted
Liens.

         7.11     Investments.  The Borrower will not make or permit to remain
outstanding  any  advances, loans  or other  extensions  of credit  or capital
contributions (other than prepaid expenses in the ordinary course of business)
to (by means of transfers of property or assets or  otherwise), or purchase or
own any stocks, bonds,  notes, debentures or other securities  of, any Person,
other than itself (all  such transactions being herein called   Investments ),
except (a) Liquid Investments;  and (b) other Investments made  or outstanding
with the  prior written  consent  of the  Lender, which  consent  will not  be
unreasonably withheld or delayed.

         7.12     Transactions with Affiliates.  Except as expressly permitted
by this Agreement, the Borrower will not directly or indirectly:  (a) make any
Investment in an  Affiliate; (b)  transfer, sell, lease,  assign or  otherwise
dispose of any assets or  provide any service to an Affiliate;  (c) merge into
or consolidate  with or purchase or  acquire assets from an  Affiliate; or (d)
enter  into any  other  transaction directly  or  indirectly with  or  for the
benefit  of  an  Affiliate  (including,  without  limitation,  guarantees  and
assumptions of obligations of  an Affiliate) other than under  the Transaction
Documents; provided that the  Borrower may enter into any transaction  with an
Affiliate in the ordinary course of business if the  terms (including, without
limitation, payment terms and monetary  or business consideration) thereof are
no less advantageous to the Borrower as the terms which would be obtained in a
comparable arm s length transaction with a Person not an Affiliate.

         7.13     Guarantees.  The  Borrower will not incur,  assume or permit
to exist any Guaranteed Obligation of the Borrower, except 

         (a)      in favor of the Lender contained in the Loan Documents;

         (b)      Guaranteed  Obligations constituting  Indebtedness permitted
     by Section 7.08 hereof; and 

         (c)      other  Guaranteed Obligations  entered into  with the  prior
     written  consent  of  Lender,  which  consent  will  not  be  unreasonably
     withheld or delayed.

         7.14     Further Assurances.   At any time or  from time to time upon
the request of the Lender, each Company shall execute and deliver (or cause to
be executed and  delivered) such further documents and do  such other acts and
things  as the  Lender may  reasonably request  in order  to effect  fully the
transactions contemplated by of the Transaction Documents.

         7.15     Dividends.  Without the prior written consent of the Lender,
the  Borrower will  not  declare  or pay  any  dividend, purchase,  redeem  or
otherwise acquire for  value any  of its stock  now or hereafter  outstanding,
return any capital to its stockholders, or make any distribution of its assets
to its stockholders.

         7.16     ERISA and  Pension Plan Compliance.   The Borrower covenants
that it will not nor permit any Subsidiary to:

         (a)      terminate  or  withdraw  from  any  Plan  resulting  in  the
     incurrence  of any  material liability  to  the Pension  Benefit  Guaranty
     Corporation;

         (b)      engage in or permit  any Person to engage in  any prohibited
     transaction (as defined  in Section 4975 of  the Code) involving any  Plan
     (other than  a Multiemployer Plan) which would subject the Borrower or any
     Subsidiary to any material tax, penalty or other liability.

         (c)      incur or  suffer to  exist any material  accumulated funding
     deficiency (as defined  in Section 302  of ERISA  and section  412 of  the
     Code),  whether  or  not  waived,  involving   any  Plan  (other  than   a
     Multiemployer Plan); or

         (d)      allow  or  suffer to  exist  any  risk  or  condition  which
     presents a  risk of incurring a material liability to  the Pension Benefit
     Guaranty Corporation.

         7.17     Environmental Matters.  Except for violations, or situations
requiring remedial action, which  would not have a material  adverse effect on
the Vessel or the  business, financial condition, operations or  properties of
the Companies  or on the ability of each Company to perform its obligations in
any material respect under each  Transaction Document to which it is  a party,
no  Company will  cause or permit  any Property to  be in violation  of, or do
anything or permit anything to be done which will subject any such Property to
any  remedial  obligations under  any  applicable  international, national  or
European  laws  (including  the  common  law)  or  liability  under   industry
agreements.  Each Company will establish  and implement such procedures as may
be reasonably necessary to, on a reasonably periodic basis, determine whether,
and assure that except for acts  or omissions which would not have a  material
adverse  effect on the Vessel or the business, financial condition, operations
or properties of such Company or on  the ability of such Company to perform in
all material respects its obligations under each Transaction Document to which
it is a party, each company shall not release, discharge,  permit or cause the
escape or  disposal of Hazardous  Substances in  a manner which  may form  the
basis  of a future  claim, violation or  Environmental Loss, demand  or action
seeking  remedial  action  of any  site,  location,  body  of water  including
international  or  national, coastal  and inland  waters  or cause  damages to
personal property  or personal injury,  disease or  death, which would  have a
material adverse effect on  the Vessel or the operation,  financial condition,
operating  results or  business prospects of  each Company  or the  ability to
perform its obligations under each Transaction Document.

         7.18     Performance of  Transaction Documents.   Each  Company shall
perform all of its obligations under each Transaction Document to  which it is
a  party or by which  it or its  assets is bound except  where such failure to
perform is  not reasonably expected to  have a material adverse  effect on the
business, financial condition, operations or properties of such Company or the
ability  of such  Company to  perform its  obligations under  each Transaction
Document to which it is a party.

         7.19     Amendment  of  Transaction  Documents.   Without  the  prior
written consent of the  Lender, neither Company shall (a)  cancel or terminate
or  agree to or permit  any amendment, supplementation,  or other modification
of, any Transaction  Document, (b) waive timely  performance or observance  by
any Person  (other than Lender) of  any term or provision  of such Transaction
Document,  (c) exercise any options or  remedies, make any elections under, or
give  any  consent under,  any such  Transaction  Document, (d)  compromise or
settle any claim against any R&B Party (other than Lender), (e) enter into any
additional  Charter or other Transaction  Documents, in each  of the foregoing
cases, unless such  action or inaction  is not reasonably  expected to have  a
material adverse  effect on the  business, financial condition,  operations or
properties  of such  Company or  the ability  of such  Company to  perform its
obligations under each Transaction Document to which it is a party.

         7.20     Operation of Vessel. Neither Company nor its affiliates will
take  any action   that will  cause the  Vessel to  be operated in  the United
States, Mexican or Canadian waters.

         7.21     Sale or  Modification of  Vessel.   The Companies shall  not
sell,  transfer  or otherwise  encumber, the  Vessel  or any  interest therein
without the  prior written consent of  the Lender, other than  pursuant to the
Option  Agreement,  or in  the case  of  any Lien,  a  Permitted Lien  or upon
prepayment of the Loan in accordance with Section 3.02.  Neither Company shall
modify  the Vessel  in  any material  respect  without sixty  (60)  days prior
written notice to the Lender.

         7.22     Acknowledgment of Charter Assignment.   Each charterer under
each Charter  Agreement shall, to  protect the  Lender s Lien  in the  Charter
Agreement and  the amounts payable  thereunder, acknowledge the  assignment of
such rights under the Assignment  of Charter and agree to direct  its payments
under such Charter Agreement to the Lockbox Account.

         Section 8.    Defaults.

         8.01     Events of Default.   If one or more  of the following events
(herein called  Events of Default ) shall occur and be continuing:

         (a)      default in the payment  of any Obligation when due  and such
default shall continue for two Business Days thereafter (a  Nonpayment ); or

         (b)      any Company shall default in the payment when due (including
any  applicable  grace  period)  of  any  principal  of  or  interest  on  any
Indebtedness having an  outstanding principal amount,  individually or in  the
aggregate,  of at  least $500,000  (other than  the Loan  or any  other amount
payable hereunder); or any event or condition shall occur which results in the
acceleration of the maturity of any such Indebtedness or enables (or, with the
giving  of notice or  lapse of time or  both, would enable)  the holder of any
such Indebtedness or  any Person acting on such holder s  behalf to accelerate
the maturity thereof; or

         (c)      any representation or warranty made or deemed made by any R&
B Party  herein or in any Transaction Document, or in any certificate or other
document furnished to the Lender pursuant to the provisions of any Transaction
Document, shall prove to have been false or misleading in any material respect
as  of  the  time  made or  furnished  and  such  representation  and warranty
continues to be false and misleading in any material respect; or

         (d)      either Company shall default in any material  respect in the
performance of any  of its obligations  or breach any  of its covenants  under
clause (d) of Section 7.01, or any of its obligations in Sections 7.04 or 7.08
through 7.22; Reading & Bates  (U.K.) shall default in the performance  of any
of its obligations  under the Donan Charter Agreement  or the Bareboat Charter
Agreement; either TRB Subsidiary or the Borrower shall default in any material
respect  in the  performance of  any of  its obligations  or duties  under the
Option Agreement;  or any R&B Party  shall default in any  material respect in
the  performance of any of  its obligations or breach  any of its covenants in
any Transaction Document,  and such  default shall continue  unremedied for  a
period  of 30  days after  notice thereof  to the Borrower  by the  Lender; or
either Company shall default in any material respect in the performance of any
of its  other obligations  or breach any  of its  other covenants in  any Loan
Document,  and such default shall continue unremedied  for a period of 30 days
after the  earlier of  (i) the date  the Borrower was  required to  notify the
Lender of such Default  pursuant to Section 7.01(d) or (ii) notice  thereof to
the Borrower by the Lender; or

         (e)      the Borrower or  any R&B  Party shall admit  in writing  its
inability to, or  be unable or  be deemed for  the purposes of  any law to  be
unable to, pay its debts generally as such debts become due; or

         (f)      the Borrower or any R&B Party shall (i) apply for or consent
to the appointment of, or the  taking of possession by, a receiver, custodian,
trustee  or liquidator  of itself  or  of all  or  a substantial  part of  its
property, (ii)  make a general  assignment for the  benefit of  its creditors,
(iii) commence a voluntary case under  any Bankruptcy Law (as now or hereafter
in effect), (iv) file a  petition seeking to take  advantage of any other  law
relating to bankruptcy, insolvency, reorganization, winding-up, or composition
or readjustment of  debts, (v) fail to controvert in  a timely and appropriate
manner,  or  acquiesce in  writing to,  any petition  filed  against it  in an
involuntary case  under any  Bankruptcy  Law, or  (vi) take  any corporate  or
partnership action for the purpose of effecting any of the foregoing; or

         (g)      (i) a  proceeding or  case shall  be commenced, without  the
application  or consent  of  the Borrower  or any  R&B Party  in any  court of
competent  jurisdiction,   seeking   (x)  its   liquidation,   reorganization,
dissolution  or winding-up, or the  composition or readjustment  of its debts,
(y)   the  appointment   of  a   trustee,  receiver,   custodian,  liquidator,
administrative receiver, administrator or the like of such Person or of all or
any  substantial part of  its assets, or  (z) similar relief in  respect of it
under any law relating  to bankruptcy, insolvency, reorganization, winding-up,
or composition  or adjustment  of  debts, and  such proceeding  or case  shall
continue  undismissed, or an order,  judgment or decree  approving or ordering
any of the foregoing shall be entered and continue unstayed and in effect, for
a period of 90 days; or (ii) an  order for relief against the Borrower or  any
R&B Party shall be entered in an involuntary case under any Bankruptcy Law; or

         (h)      a final judgment or judgments for the payment of money shall
be rendered by a court or courts against the Borrower in excess of $500,000 in
the  aggregate  which is  not covered  by  insurance, subject  to  a customary
deductible, and  the same shall not  be discharged (or provision  shall not be
made  for  such discharge),  or  a  stay of  execution  thereof  shall not  be
procured, within 45 days from the date of entry thereof, or the Borrower shall
not,  within said  period  of 45  days,  or such  longer  period during  which
execution of the same shall  have been stayed, appeal therefrom and  cause the
execution thereof to be stayed during such appeal; or

         (i)      any of  Transaction Documents  shall be terminated  prior to
the end of its stated term, or shall  cease to be in full force and effect and
valid,  binding and  enforceable in  accordance with  its terms,  for whatever
reason (other than by prepayment or with the consent of the Lender pursuant to
Section 9.05); or 

         (j)      Reading &Bates  shall fail to hold,  directly or indirectly,
at least  100%  of the outstanding shares of  voting stock of the  Borrower or
the Borrower  fails to hold  at least 90% of  the partnership interest  in the
Partnership; or

         (k)      any Transaction Document shall cease, for any reason,  to be
in  full force and  effect (other  than in accordance  with its  terms) or any
party thereto (other  than (i) the Lender  or (ii) an Affiliate  of the Lender
not  acting  in good  faith)  shall  so assert  in  writing;  or any  Security
Instrument  shall cease  to be  effective to  grant a  Lien on  the collateral
described therein with the priority purported to be created thereby;

         (l)      any  R&B Party  shall  be in  default  under or  shall  have
breached any Transaction Document to which it is a party  and any grace period
provided for therein with respect to  such default or breach shall have lapsed
and  such  default would  reasonably be  expected to  have a  material adverse
effect on the business,  financial condition, operations or properties  of the
Borrower or  the ability  of the  Borrower or  any R&B  Party  to perform  its
obligations under each Transaction Document to which it is a party; or

         (m)      any Person presents a petition for the winding-up of any R&B
Party (other than  one which is  frivolous or vexatious)  and the same is  not
withdrawn, dismissed or discharged within 7 Business Days; or

         (n)      any person presents a petition for the administration of any
R&B Party; or

         (o)      any order for the administration of any R&B Party is made or
an order is made or  a resolution is passed (other than for the  purposes of a
reconstruction or amalgamation previously  approved in writing by the  Lender)
for the winding-up of such R&B Party; or

         (p)      any Governmental  Authority or  any Person acting  under any
Governmental  Authority shall have  commenced any proceedings  (i) to condemn,
seize  or appropriate  all or any  substantial part  of the Vessel  or (ii) to
displace the management of the Borrower or to curtail the Borrower s authority
to conduct its business; provided that no action of any Governmental Authority
or  any  other  Person described  in  clause  (ii)  of  this subsection  shall
constitute an  Event of  Default unless  and until (x)  the Lender  shall have
determined,  in their  sole discretion,  that  such action  has had,  or could
reasonably  be expected  to have, a  material adverse effect  on the business,
financial condition, operations or  properties of the Borrower or  the ability
of  the Borrower  or  any R&B  Party  to perform  its  obligations under  each
Transaction Document to which it  is a party and (y) Borrower shall  have been
given notice of such determination;

THEREUPON:   the Lender may  (a) declare the  Commitment terminated (whereupon
the  Commitment shall be terminated)  and/or (b) declare  the principal amount
then  outstanding of  and the  accrued  and unpaid  interest on  the Loan  and
commitment fees  and all other amounts payable hereunder and under the Note to
be  forthwith due  and payable,  whereupon  such amounts  shall be  and become
immediately due  and payable,  without notice (including,  without limitation,
notice of  intent  to accelerate  and  notice of  acceleration),  presentment,
demand,  protest or  other formalities of  any kind,  all of  which are hereby
expressly waived by  the Borrower and (c) proceed to  enforce its rights under
the Security Instruments or otherwise available at law or in  equity; provided
that  in the  case of  the occurrence of  an Event  of Default  referred to in
clauses (f) or (g) of this Section 8.01, the Commitment shall be automatically
terminated  and the  principal  amount then  outstanding  of and  the  accrued
interest  on the  Loan and fees  and all  other amounts  payable hereunder and
under  the Note  shall  be and  become automatically  and immediately  due and
payable,  without notice (including,  without limitation, notice  of intent to
accelerate and notice  of acceleration), presentment, demand, protest or other
formalities  of any  kind, all  of which  are hereby  expressly waived  by the
Borrower.
 
         8.02     Application  of  Proceeds.    All  proceeds  received  after
maturity  of the Note, whether  by acceleration or  otherwise shall be applied
first  to reimbursement of reasonable expenses and indemnities provided for in
this Agreement and the Security Instruments;  second to fees and other amounts
owing under  this Agreement or the Loan Documents; third to accrued and unpaid
interest on the Note; fourth to principal outstanding on the Note; and, to the
extent of any  excess to be paid  to the Borrower or as  otherwise required by
any court of competent jurisdiction.

         Section 9.    Miscellaneous.

         9.01     Waiver.  No  failure on the  part of the Lender  to exercise
and no delay  in exercising,  and no course  of dealing with  respect to,  any
right, power  or privilege under any  Loan Document shall operate  as a waiver
thereof,  nor shall  any single  or partial  exercise of  any right,  power or
privilege thereunder preclude  any other  or further exercise  thereof or  the
exercise of any other right, power or privilege.  The remedies provided in the
Loan Documents are cumulative  and not exclusive  of any remedies provided  by
law.

         9.02     Notices.  All notices  and other communications provided for
herein (including,  without limitation, any  modifications of,  or waivers  or
consents under, this  Agreement) shall be  given or made by  telex, telegraph,
telecopy, cable or other writing and telexed, telecopied, telegraphed, cabled,
delivered or sent by  certified or registered mail, return  receipt requested,
to the  intended recipient at  the  Address  for Notices  specified  below its
name on the signature pages hereof; or, as to any party, at such other address
as shall  be designated  by such  party in a  notice to  the Borrower  and the
Lender given  in  accordance with  this  Section 9.02.    Except as  otherwise
provided in  this Agreement, all such  communications shall be  deemed to have
been  duly given  when  transmitted  by  telex  or  telecopier  (with  receipt
confirmed by  telex or telecopier), sent  by the telegraph or  cable office or
personally delivered or, in the case of a mailed notice, upon receipt, in each
case given or addressed as aforesaid.

         9.03     Expenses, Etc.  The Borrower, without duplication, agrees to
pay or reimburse the Lender for paying:  (a)  the reasonable fees and expenses
of counsel to the Lender in connection with (i) the preparation, execution and
delivery  of this Agreement (including  the Exhibits hereto)  and the Security
Instruments  and the  making of the  Loan, however  such fee  shall not exceed
$131,000, and (ii) any modification, supplement  or waiver of any of the terms
of this Agreement, or any other Transaction Document; (b) all reasonable costs
and expenses of the Lender (including reasonable counsels  fees) in connection
with the enforcement of this Agreement, or any other Transaction Document; (c)
all  transfer,  stamp,  documentary  or other  similar  taxes,  assessments or
charges levied  by any governmental  or revenue authority  in respect of  this
Agreement, or any other Transaction Document or any other document referred to
herein or therein;  and (d) all costs, expenses, taxes,  assessments and other
charges incurred in  connection with  any filing,  registration, recording  or
perfection  of any  security interest  contemplated by  this Agreement  or any
other Transaction Document referred to herein or therein.

         9.04     Indemnification.  The Borrower shall 

         (a)      indemnify the  Lender and each of their  Affiliates and each
of their officers,  directors, employees, representatives,  agents, attorneys,
accountants  and  experts ( Indemnified  Parties )  from,  hold each  of  them
harmless against and  promptly upon demand  pay or reimburse each of them  for
the Indemnity Matters which may be  incurred by or asserted against or involve
any of them (whether  or not any of them  is designated a party thereto)  as a
result of, arising  out of or in any way related to (i) any actual or proposed
use by the Borrower of the  proceeds of the Loan, (ii) the execution, delivery
and performance of this Agreement  and the other Transaction Documents  by the
R&B Parties thereto,  (iii) the operations  of the business  of the  Borrower,
(iv) the failure of  the Borrower or  any other R&B Party  to comply with  the
terms  of any  Transaction Documents,  including this  Agreement, or  with any
applicable governmental requirement, (v) any  inaccuracy of any representation
or any breach of any warranty of  the Borrower set forth in this Agreement  or
the  other Transaction Documents, or  (vi) any other aspect  of this Agreement
and the  Transaction Documents, including, without  limitation, the reasonable
fees and disbursements of  counsel and all other reasonable  expenses incurred
in  connection with investigating, defending  or preparing to  defend any such
action,   suit,  proceeding  (including   any  investigations,  litigation  or
inquiries) or claim and including  all Indemnity Matters arising by  reason of
the  ordinary negligence of any Indemnified Party, but excluding therefrom all
Indemnity  Matters arising  by  reason  of  the  gross  negligence  or  wilful
misconduct of any Indemnified Party; and

         (b)      indemnify  and   hold  harmless   from  time  to   time  the
Indemnified Parties from and against any and all losses, claims, cost recovery
actions,  administrative orders  or  proceedings, damages  and liabilities  to
which  any  such Person  may become  subject (i)  under any  environmental law
described in  Section 6.10  hereof applicable  to the Borrower  or any  of its
Properties,  including  without  limitation,  the  treatment  or  disposal  of
Hazardous Substances  on any of its Properties, (ii) as a result of the breach
or  non-compliance by  the Borrower  with any  environmental law  described in
Section 6.10 hereof applicable to the Borrower, (iii) due to past ownership by
the  Borrower of  any  of  its Properties  or  past  activity  on any  of  its
Properties or past activity on any of its Properties which,  though lawful and
fully permissible  at the time,  could result in  present liability, (iv)  the
presence, use, release, storage, treatment or disposal of Hazardous Substances
on or at any of  the Properties owned or operated by the Borrower,  or (v) any
other  environmental,  health  or safety  condition  in  connection  with this
Agreement,  the Note or any other Transaction Documents, provided, however, no
indemnity  shall be  afforded under  this  Section 9.04(b)  in respect  of any
Property for any  occurrence arising from the acts or  omissions of the Lender
during the period  after which  such Person, its  successors or assigns  shall
have obtained possession  of such Property (whether by foreclosure  or deed in
lieu of foreclosure, as mortgagee-in-possession or otherwise).

         (c)      The  Borrower s  obligations under  this  Section 9.04 shall
survive any  termination of  this Agreement  and the payment  of the  Note and
shall continue thereafter in full force and effect.

         (d)      The Borrower  shall pay any  amounts due under  this Section
9.04  within thirty (30) days of the receipt by the Borrower of written notice
of the amount due.

         9.05     Amendments, Etc.  No amendment or waiver of any provision of
this Agreement or the Note,  nor any consent to any departure  by the Borrower
therefrom, shall in any event be effective unless the same shall be agreed  or
consented to  in writing by the  Lender and the Borrower,  which consent shall
not be unreasonably delayed or withheld, and each such waiver or consent shall
be effective  only in the specific  instance and for the  specific purpose for
which given.

         9.06     Successors and Assigns.

         (a)      This  Agreement shall  be  binding  upon  and inure  to  the
benefit of the  parties hereto  and their respective  successors and  assigns,
except that the Borrower may not assign its rights or obligations hereunder or
under the Note  without the prior written  consent of the Lender.   Lender may
not  assign  its rights  or obligations  hereunder  without the  prior written
consent of the Borrower (except as otherwise provided in subparagraphs (b) and
(c) below).

         (b)      The Lender may assign to one or more assignees  that are the
Lender s Affiliates all or a portion of its rights and  obligations under this
Agreement.  The Lender shall give the Borrower prompt notice thereof.  

         (c)      The Lender  may transfer, grant or  assign participations in
all  or any part of its interests hereunder pursuant to this subsection to any
Person that is an Affiliate of the Lender.  The Lender shall give the Borrower
prompt notice thereof. 

         (d)      The  Lender  may  furnish  any  information  concerning  the
Borrower in its  possession from time  to time  to assignees and  participants
(including prospective assignees and participants).

         9.07     Survival.   The obligations  of the Borrower  under Sections
4.01, 4.03, 4.04, 9.03 and 9.04 hereof shall survive the repayment of the Loan
and the termination of the  Commitment.  The other obligations of  the parties
to this Agreement  not previously accrued  under the terms  of this  Agreement
shall  terminate  upon  repayment of  the  Loan  and  the termination  of  the
Commitment.

         9.08     Captions and Final Agreement.  Captions and section headings
appearing herein are included solely for convenience of reference  and are not
intended  to affect  the interpretation  of any  provision of  this Agreement.
This Agreement, together with the other written agreements and papers executed
herewith in  connection with  this Agreement, represents  the final  agreement
among  the parties  hereto with respect  to the  subject matter  hereof.  This
Agreement  and  such writings  supersede  all  prior proposals,  negotiations,
agreements and understandings  related to such  subject matter.   Each of  the
Borrower and the Lender hereby represents and warrants that it  is not relying
on  any statement, representation, warranty, covenant or agreement of any kind
except for  those set forth in this Agreement and  such other documents.  This
Agreement may  be executed in any  number of counterparts, all  of which taken
together shall constitute  one and the same instrument and  any of the parties
hereto may execute this Agreement by signing any such counterpart.

         9.09     No Usury  Intended.   Notwithstanding any provision  of this
Agreement or  the Transaction Documents, if  at any time the  rate of interest
contracted for, charged or  received on any Advance  or the Loan or  any other
amount  payable  as  interest in  connection  with  the  Transaction Documents
exceeds  the maximum  non-usurious  interest rate  permissible for  commercial
borrowers  under applicable law ( Maximum Rate ), the rate of interest charged
hereunder shall be limited to the Maximum Rate.  In such event, if the rate of
interest chargeable under this  Agreement or the Transaction Documents  on any
Advance or the  Loan or any other amount at any time is subsequently less than
the Maximum Rate, the  principal amount of such Advance or the Loan shall bear
interest  at  the Maximum  Rate until  the total  amount  of interest  paid or
accrued hereunder equals the amount of interest which would have  been paid or
accrued hereunder if the stated rates  of interest set forth in this Agreement
had at all  times been in effect.   In the event, upon payment in  full of all
amounts payable hereunder, the total amount of interest paid or  accrued under
the terms  of this  Agreement or  the Transaction Documents  is less  than the
total amount of interest which would have been paid or accrued if the rates of
interest set  forth in this Agreement had, at  all times, been in effect, then
the Borrower  shall, to  the extent  permitted by applicable  law, pay  to the
Lender an amount equal  to the difference  between (a) the  lesser of (i)  the
amount of interest which  it would have been charged if  the Maximum Rate had,
at all times,  been in effect or (ii) the amount  of interest which would have
accrued on the  Advance or the Loan to  the Borrower if the rates  of interest
set forth in this Agreement had at all times been in effect and (b) the amount
of  interest actually  paid or  accrued  on such  Advance or  Loan under  this
Agreement.    In the  event  the Lender  ever  receives, collects,  charges or
applies as interest any sum in excess of the Maximum Rate,  such excess amount
shall be applied to the reduction  of the principal balance of the Loan  or to
other amounts  (other  than interest)  payable  hereunder or  the  Transaction
Documents,  and if no such principal is  then outstanding, such excess or part
thereof remaining shall be paid to the Borrower.

         9.10     Invalidity.    In the  event that  any  one or  more  of the
provisions  contained in  the  Note,  this Agreement,  or  in  any other  Loan
Document shall, for any reason,  be held invalid, illegal or unenforceable  in
any respect, such  invalidity, illegality or unenforceability shall not affect
any other provision of the Note, this Agreement or any other Loan Document.

         9.11     No Consequential Damages.   Except as specifically  provided
for  herein to  the contrary,  neither the  Borrower nor  the Lender  shall be
liable  to the other for  any consequential, incidental,  indirect or punitive
damages of any kind or character, including, but not limited to,  loss of use,
loss of  profit, loss  of  revenue, loss  of  product or  production,  whether
arising  under  the Loan  Documents  or as  a  result  of, relating  to  or in
connection  with,  the   transactions  contemplated   hereby  (the    Excluded
Damages ), and no claim for  Excluded Damages shall be made by the Borrower or
the   Lender  against  the   other  Person,   whether  based   on  negligence,
seaworthiness,  breach  of  warranty,  breach of  agreement,  statute,  strict
liability or otherwise.

         9.12     GOVERNING  LAW; SUBMISSION  TO JURISDICTION; WAIVER  OF JURY
TRIAL.

         (a)      THIS  AGREEMENT  AND THE  NOTE  SHALL  BE  GOVERNED  BY  AND
CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK.

         (b)      THE  BORROWER   AND  R&B   (U.K.)  HEREBY  SUBMITS   TO  THE
NONEXCLUSIVE JURISDICTION OF THE UNITED STATES DISTRICT COURT FOR THE SOUTHERN
DISTRICT OF NEW YORK  AND OF ANY NEW YORK STATE COURT SITTING IN NEW YORK CITY
AND THE UNITED KINGDOM FOR PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT OF OR
RELATING  TO  THIS AGREEMENT  OR THE  TRANSACTIONS  CONTEMPLATED HEREBY.   THE
BORROWER  IRREVOCABLY  WAIVES, TO  THE FULLEST  EXTENT  PERMITTED BY  LAW, ANY
OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF THE VENUE OF ANY
SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM THAT ANY SUCH PROCEEDING
BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

         (c)      EACH OF  THE BORROWER,  R&B (U.K.),  AND  THE LENDER  HEREBY
IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN  ANY LEGAL PROCEEDING
ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE  TRANSACTIONS CONTEMPLATED
HEREBY.

         9.13     Agent for Service of Process.  The  Borrower and R&B  (U.K.)
hereby irrevocably designate The Prentice-Hall Corporation Systems, Inc., with
offices  at 500  Central  Avenue, Albany,  New  York 12206-2290,  as agent  to
receive for and on behalf of the Borrower service  of process in New York.  In
the event that The  Prentice-Hall Corporation Systems, Inc. resigns  or ceases
to  serve  as the  Borrower s or  R&B (U.K.) s  agent  for service  of process
hereunder,  the  Borrower and  R&B (U.K.)  agrees  forthwith (a)  to designate
another agent for service of process in the State of New York and (b)  to give
prompt written  notice to the  Lender of the name  and address of  such agent.
The Lender agrees to cause  a copy of such process served on such  agent to be
promptly forwarded  to the Borrower  and R&B (U.K.)  at its address  set forth
underneath its signature below, and the Borrower and R&B (U.K.) agree that the
failure of the  Borrower and R&B (U.K.) to receive such  copy shall not impair
or  affect in  any way  the validity  of  such service  of process  or of  any
judgment based thereon.  The Borrower and R&B (U.K.) agree that the failure of
its agent for  service of process to  give any notice  of any such service  of
process to the Borrower and R&B (U.K.) shall not impair or affect the validity
of such service or of any judgment based thereon.   If, despite the foregoing,
there is for  any reason no agent for  service of process of the  Borrower and
R&B (U.K.)  available to be served,  then the Borrower and  R&B (U.K.) further
irrevocably consent  to the service of  process by the mailing  thereof by the
Lender by registered or certified mail,  postage prepaid, to the Borrower  and
R&B (U.K.) at its address listed on the signature pages hereof.  Nothing 



                   (Remainder of Page Intentionally Deleted)


in  this Section 9.13  shall affect  the right  of the  Lender to  serve legal
process in any other manner permitted by law or affect the right of the Lender
to bring any action or proceeding against the Borrower and R&B (U.K.) or their
property in the courts of any other jurisdiction.

         IN  WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed and delivered as of the day and year first above written.

                             TRB HOLDING CORPORATION.
                                 as Borrower


                             By:                                              
                                  T.W. Nagle
                                  Executive   Vice  President
                                  Finance and Administration

                             Address for Notices:

                             901 Threadneedle, Suite 200
                             Houston, Texas 77079
                             Attention:  T.W. Nagle, Executive Vice President
                             Finance and Administration

                             Telecopy Number (281) 496-0285

                             With copies to:

                             Wayne K. Hillin
                             901 Threadneedle, Suite 200
                             Houston, Texas 77079

                             Telecopy Number: (281) 496-0285


                             READING & BATES (U.K.) LIMITED


                             By:                                              
                                   T.W. Nagle
                                   Authorized Agent



                             Address for Notices:

                             901 Threadneedle, Suite 200
                             Houston, Texas 77079
                             Attention:  T.W. Nagle, Executive Vice President
                             Finance and Administration

                             Telecopy Number (281) 496-0285


                             NISSHO IWAI EUROPE PLC,
                                 as Lender


                             By:                                              
                                   H. Iwano
                                   Attorney-in-Fact


                             Address for Notices:

                             Bastion House
                             140 London Wall
                             London
                             EC2Y 5JT
                             United Kingdom
                             Attention: Manager of Marine Department

                             Telecopy Number:  011-4471-588-0391

                             With a copy to:

                             Nissho Iwai Corporation
                             4-5, Akasaka 2-chome
                             Minato-ku, Tokyo 107, Japan
                             Attention:  Manager, Marine Project Section 2
                             Marine & Offshore Engineering Department

                             Telecopy Number:  011-813-3588-4547

                             and

                             Baker & Botts, L.L.P.
                             One Shell Plaza
                             Houston, Texas  77002
                             Attention:  Stephen Krebs

                             Telecopy Number:  (713) 229-1522

                             Address for Applicable Lending Office:

                             See Address for Notices



                                                                  EXHIBIT 2.05


                                 Form of Note


                                     NOTE


$38,000,000.00                                              New York, New York
                                                         ______________, 199__


         FOR VALUE  RECEIVED, TRB Holding Corporation,  a Delaware corporation
(together with its successors, the  Borrower ), hereby promises to pay  to the
order of  Nissho Iwai  Europe PLC  (the   Lender ), by  disbursement from  the
Lockbox maintained  at the  principal office of  Sanwa Bank Limited,  New York
Branch, New York, New York,  the principal sum of $38,000,000 (or  such lesser
amount  as shall equal the aggregate unpaid  principal amount of the Loan made
by the Lender to the Borrower under the Loan  Agreement referred to below), in
lawful money  of the  United States of  America and  in immediately  available
funds,  on  the dates  and  in  the principal  amounts  provided  in the  Loan
Agreement (as  defined below),  and to  pay interest  on the unpaid  principal
amount of  each Advance,  at such  office, in  like money and  funds, for  the
period commencing on the date of such Advance until such Advance shall be paid
in  full,  at the  rates  per annum  and  on the  dates  provided in  the Loan
Agreement.  

         The Lender  is hereby authorized  by the  Borrower to endorse  on the
schedules (or a  continuation thereof) attached to  this Note, the amount  and
date  of each  Advance made  by  the Lender  to the  Borrower  under the  Loan
Agreement, and the amount and date  of each payment or prepayment of principal
of such Loan received by the  Lender, provided that any failure by  the Lender
to make any such endorsement shall not affect the obligations  of the Borrower
under the Loan Agreement or under this Note in respect of such Advance.

         This Note is the Note referred to in that certain  Loan Agreement (as
modified and  supplemented  and  in  effect  from  time  to  time,  the   Loan
Agreement )  dated as  of December 14,  1996 between  the Borrower,  Reading &
Bates (U.K.) Limited and the Lender, and evidences the Loan made by the Lender
thereunder.  Capitalized terms used in this  Note have the respective meanings
assigned to them in the Loan Agreement.

         The Loan Agreement provides  for the acceleration of the  maturity of
this  Note upon the  occurrence of certain  events and for  prepayments of the
Loan upon the terms and conditions specified therein.

         The Loan Agreement further provides that this Note is secured  by the
Security Instruments, as defined therein, covering the collateral described in
such Security Instruments.

         This Note shall be  governed by and construed in accordance  with the
laws of the State of New York.


                             TRB HOLDING CORPORATION



                             By:                                              
                             Name:                                            
                             Title:                                           



                ADVANCE AND PAYMENTS OF PRINCIPAL AND INTEREST


                            Amount of    Amount of
                            Principal     Interest      Unpaid
  Borrowing   Amount of      Paid or      Paid or     Principal    Notation 
     Date        Loan        Prepaid      Prepaid      Balance      Made By




                                                                  Exhibit 3.01

                                     FORM
                                      OF
                                DRAWDOWN NOTICE


Nissho Iwai Europe Plc (the "Lender")
Bastion House
140 London Wall
London EC2Y 5JT
England

Attention:  Manager of Marine Department

Dear Sirs:

         Reference is made to the Loan Agreement dated as of December 14, 1996
(the  "Loan Agreement"),  between  TRB Holding  Corporation (the  "Borrower"),
Reading & Bates (U.K.) Limited and  the Lender.  Capitalized terms used herein
and not otherwise defined herein  have the meanings assigned to such  terms in
the Loan Agreement.

         The Borrower, hereby requests a borrowing under the Loan Agreement in
the aggregate principal amount of $38,000,000 (the "Proposed Borrowing").

         Please  make the  proceeds  of the  Proposed  Borrowing available  to
Account No. _____________ at ________________________________________.  

         By each of the delivery of this Drawdown Notice and the acceptance of
the Advance  made by  the  Lender in  response to  this  Drawdown Notice,  the
Borrower  represents  and  warrants  that  the  conditions  to  the  Borrowing
specified in  the Loan  Agreement  have been  satisfied  with respect  to  the
Proposed Borrowing.

                                 Very truly yours,

                                 TRB HOLDING CORPORATION


                                 By:                                    
                                 Name:                                  
                                 Title:                                       


cc:  Nissho Iwai American Corporation
     Suite 800, Three Riverway
     Houston, Texas 77056
     Attention:  H. Kawaguchi
                                 EXHIBIT 6.11 

                             COMPANIES  INSURANCE

As specified  in Exhibit  6.11,  the Companies  shall maintain  the  following
insurance coverage:  


1.  Workmen's Compensation and Employers' Liability Insurance

    All of the Companies   employees shall  be covered for statutory  benefits
    as  set forth  and required  by applicable  law  in  the Vessel s  area of
    operation or such other  jurisdiction under which the Companies may become
    obligated  to pay  benefits.   Employers' Liability  insurance,  including
    appropriate  maritime coverage covering  all employees,  shall be provided
    with minimum primary policy  limits as required by  applicable statute, or
    U.S. $1 million per occurrence, whichever is greater.

2.  Comprehensive General Liability 

    Insurance  coverage shall  be  provided  for  liability arising  from  all
    operations  of the  Companies.    The policy  shall  include coverage  for
    premises and  operations, independent  contractors, completed  operations,
    and  contractual liability  (or their  equivalents).   Insurance  coverage
    shall also be provided  for all owned, hired, and nonowned vehicles.   The
    minimum primary  policy  limits shall be U.S.  $1 million single limit per
    occurrence under  the General  Liability policies.   Automobile  Liability
    insurance shall  have  minimum policy  limits  of  U.S. $1,000,000  single
    limit per occurrence, or such greater amount as required by law.

3.  Protection and Indemnity (Marine Liability) Insurance

    Full form  marine protection and indemnity  insurance, including, but  not
    limited  to, sudden  and accidental  pollution liability  and  contractual
    liability coverage or equivalent  insurance with such club  or under forms
    of  policies  approved  by  the  Lender.  Such  protection  and  indemnity
    insurance shall be  maintained in the  broadest forms  generally available
    in the  United States market,  shall be in  an amount  not less  than that
    carried   by  experienced  and   responsible  companies   engaged  in  the
    production of petroleum,  shall include a cross-liability endorsement  and
    shall be  placed through  independent brokers  of recognized  standing and
    with first-class  underwriters reasonably  acceptable to the  Lender.   No
    hull  and machinery  or protection  and indemnity  insurance shall provide
    for a deductible amount  in excess of $500,000  with respect to the Vessel
    without the prior written consent of the Lender.

4.  Excess Liability

    The Companies shall carry  Excess Liability Insurance in  amounts not less
    than $200  million each  occurrence in  addition to  and in excess  of all
    primary  Liability  Coverages  carried  by  Companies,  including but  not
    limited to  insurance required  under Paragraphs  1 and  2 (oil  pollution
    sublimit $90 million per Paragraph 6).

5.  Marine Physical Damage, Including Hull and Machinery

    All risk Marine  and hull and  machinery shall  be provided  with a  limit
    equal to  that normally carried by  experienced and responsible  companies
    engaged in offshore drilling,  but shall not  be less than the greater  of
    (a)  $105,000,000;  or (b)  the  fair market  sale  value of  the  Vessel.
    Coverage shall include collision liability and navigation limits  adequate
    for the Vessel's trade.

6.  Oil Pollution Insurance

    Oil pollution  insurance coverage  issued by  the Vessel's  P & I  Club or
    equivalent  coverage in  the amount  of not less  than US  $90,000,000 per
    occurrence,   unless   additional  insurance   or   proof   of   financial
    responsibility of  a greater  amount shall  be required by  a governmental
    authority,  in which case  such greater amount shall  be obtained and kept
    in full force and  effect by the Companies.  The Companies shall  maintain
    insurance,  if   available,  covering   similar  oil   removal  risks   or
    liabilities  and civil  or criminal  penalties  incident thereto  and  not
    attributable  to  the action  or inaction  of  the Lender  under any  law,
    regulation or judicial decision  of any of the United States of America or
    foreign  jurisdiction or  jurisdictions  or political  subdivision thereof
    applicable  to the Vessel  or its operations to  the extent such insurance
    is  requested  in writing  by the  Lender and  recommended by  a reputable
    independent marine insurance  broker as insurance which other  responsible
    tanker  owners carry  for their benefit  and the benefit  of their lenders
    and which  it would be imprudent  not to carry for  the protection of  the
    Companies and  the Lender  in view of  the nature  of the  Vessel and  the
    Vessel's  operations.   Applicable  when  the Vessel  is  attached to  the
    wellhead,  fixed  entry  coverage  issued  by  the  Vessel s P&I  Club  or
    equivalent coverage  in  an  amount  of  not less  than  $400,000,000  per
    occurrence.   Applicable  when the Vessel  is acting as  a shuttle tanker,
    mutual  entry coverage  issued  by  the Vessel s  P&I  Club or  equivalent
    coverage in an amount of not less than $500,000,000 per occurrence.

7.  War, Political Risk, Confiscation and Expropriation Insurance

    If  and  to  the  extent that  the  Vessel  is  operated  outside  of  the
    territorial  waters  and/or  the Outer  Continental  Shelf  of  the United
    States (and in addition  to any coverage required  by the Lender  for such
    operations under  the Loan Documents),  War, Political Risk,  Confiscation
    and  Expropriation Insurance shall be provided for the Vessel with a limit
    equal to the value insured under Paragraph 5 above. 

8.  Other Losses

    Losses not  covered by  the above  stated policies because  of deductibles
    and  policy limits stated above  shall be borne according to the liability
    and indemnity provisions of the Loan Documents.

9.  NIC Parties as Additional Insured

    All coverages  and other  insurance policies  carried by the  Companies or
    that the Companies are  required at any  time to maintain pursuant to  the
    Loan Documents shall name  NIC Parties as additional  insureds (other than
    the protection and indemnity  and oil  pollution coverages extended by  UK
    P&I   Club,  foreign   workers   compensation  and   employer s  liability
    coverage) and loss payee for all risks and losses as provided in the  Loan
    Agreement and the Assignment of Insurance Proceeds.

10. Reporting Requirements

    (a) On each anniversary  of the Closing  Date, and each  time there is  a
        reduction or material change in the insurance coverage carried on the
        Vessel, the Companies  will furnish to  the Lender a  detailed report
        signed by  independent  marine  insurance brokers  (who  may  be  the
        insurance brokers regularly employed by the Companies  ) appointed by
        the Companies and reasonably acceptable to the Lender, describing the
        insurance  policies  then  carried  and  maintained  on  the   Vessel
        (including the  names of the underwriters, the  types of risk covered
        by such  polices, the  amount insured  thereunder and  the expiration
        date thereof)  and stating  that  in the  opinion of  said  insurance
        brokers such insurance  is adequate and reasonable  for protection of
        the Lender,  is in compliance with  the terms of Section  6.11 and is
        comparable with  that  carried  by  other  responsible  operators  of
        similar production vessels.   The Companies  will cause such  firm to
        agree  to  advise  the Lender  promptly  of  any  lapse  of any  such
        insurance  by expiration,  failure to renew  or otherwise  and of any
        default in payment of any premium and of any other act or omission on
        the part of the Companies of  which it has knowledge and which might,
        in its opinion,  invalidate or render  unenforceable, in whole  or in
        part, any insurance  on the Vessel.   The Companies shall also  cause
        such firm to agree to mark its records and to use its best efforts to
        advise  the  Lender, at  least ten  (10) business  days prior  to the
        expiration  date  of  any  insurance  carried  pursuant to  the  Loan
        Agreement, that such insurance has been renewed or replaced  with new
        insurance which complies with  the provisions of the  Loan Agreement,
        and  such  advice shall  be in  the same  detail  in respect  of such
        renewed  or  replacement  insurance  as is  required  in  respect  of
        insurance described in the aforesaid reports.

    (b) Copies  of all  insurance  policies required  to be  maintained under
        Section 6.11  of the  Loan Agreement  or certificates evidencing  the
        coverage thereof, shall be  delivered to and held by the  Lender, and
        so long as the Loan Agreement remains  in effect, the Companies shall
        deliver  to the  Lender  not  later  than January 31  of  each  year,
        commencing January 31, 1998, a schedule certified  to be correct by a
        responsible  officer  setting  forth all  insurance  in  force as  of
        January 1  of  that year  including  but not  limited  to  the policy
        numbers, the name  and address of  the insurers,  the amount of  each
        policy, and the expiry date of each policy.

    (c) In  the event the Vessel suffers  serious damage reasonably estimated
        at the time to  cost more than $500,000  to repair or to  require the
        Vessel be withdrawn from service and placed in drydock to effect such
        repairs  immediately,  the  Companies  shall  notify  the  Lender  by
        telegram within twenty-four  (24) hours  after the  event shall  have
        come to its knowledge and in such event the Lender shall have come to
        its knowledge  and in such event  the Lender shall have  the right to
        have an  independent survey of the damage  at the Companies s expense
        and if such survey  be requested the Companies shall lend  all needed
        assistance.

11. Additional Provisions

    All policies (other than  the protection  and indemnity and oil  pollution
    coverages extended by UK  P&I Club  and the foreign workers   compensation
    and   employers   liabilitly  coverages)   shall  include  the  following:
    (i) breach  of warranty  protection  to  the NIC  Parties, (ii) waiver  of
    subrogation clause,  (iii) at least [10]  [30] (or 7,  in the  case of war
    risk)   days   prior   written   notice  of   cancellation   or   material
    modification,  and (iv) provide that the interests of the Lender under the
    insurance  policy shall not be  impaired in any  way by  any change in the
    title of ownership  of the Vessel or by any omission or neglect  or by the
    performance of  any act  in violation  of any  terms or conditions  of the
    policy  or because  of any  false statement concerning  the policy  or the
    subject  thereof by  the  insured  or the  insured s employees,  agents or
    representatives  whether occurring  before  or  after the  date hereof  or
    whether  before or  after any loss.   The insurance  (other than pollution
    coverage extended  by UK  P&I Club  and the foreign  workers  compensation
    and employers  liabilitly coverages)  shall be primary,  without right  of
    contribution  from any  other insurance  which may be  carried by  the NIC
    Parties, and (other than  the protection  and indemnity and oil  pollution
    coverages extended  by the UK  P&I Club) contain  a waiver  of set  off of
    premiums against claims proceeds  and provide for no  recourse for premium
    payments  by the NIC Parties.   Each of  the Companies  agree that it will
    not do  any act, nor  voluntarily suffer  nor permit  any act to  be done,
    whereby  any insurance  required  hereunder  shall or  may  be  suspended,
    impaired or defeated and  will not suffer nor permit the Vessel to  engage
    in any voyage, nor  to carry any cargo not permitted under the policies of
    insurance in  effect, without  first covering  such Vessel with  insurance
    reasonably satisfactory in all respects, including  the amount thereof, to
    the Lender for such voyage or the carriage of such cargo.

                                                                  EXHIBIT 7.08


                       FORM OF SUBORDINATION PROVISIONS


     Subordination.

     (a)     The   indebtedness  ("Subordinated   Debt")  evidenced   by  this
instrument is  subordinate and junior in  right of payment to  all Senior Debt
(as  defined  in subdivision  (b))  of the  Companies to  the  extent provided
herein.

     (b)     For  all  purposes of  these  subordination  provisions the  term
"Senior Debt"  shall mean all principal  of and premium, if  any, and interest
and expenses under  the Loan Agreement, dated  as of December 14, 1996,  among
the  Companies  and  Nissho Iwai  Europe  Plc  ( NIEP ),  and  (ii) all  other
indebtedness of  the Companies or  any Subsidiary  for borrowed money.     The
Senior Debt shall continue to be Senior  Debt and entitled to the benefits  of
these subordination provisions irrespective of any amendment, modification  or
waiver  of any term of  the Senior Debt or extension  or renewal of the Senior
Debt.

     (c)     No direct or indirect payment (in cash, property or securities or
by setoff  or otherwise)  shall be  made on  account of  the  principal of  or
premium, if any,  or interest on any  Subordinated Debt, or as a  sinking fund
for  the  Subordinated Debt,  or  in respect  of  any  redemption, retirement,
purchase or other acquisition of any of the Subordinated Debt until the Senior
Debt shall be paid in full in cash. 

     (d)   In the event of:

         (i)    any   insolvency,   bankruptcy,    receivership,  liquidation,
     reorganization,  readjustment,  composition or  other  similar  proceeding
     relating to the Companies, its creditors as such or its property,

         (ii)   any  proceeding  for  the  liquidation,  dissolution or  other
     winding-up  of  the Companies,  voluntary or  involuntary, whether  or not
     involving insolvency or bankruptcy proceedings,

         (iii)  any   assignment   by   the  Companies  for   the  benefit  of
     creditors,

         (iv)   any   other   marshalling  of  the assets of the Companies, or

         (v)    any acceleration of any Senior Debt,

all Senior Debt  (including any interest  thereon accruing  at the legal  rate
after  the commencement  of any such  proceedings and  any additional interest
that would have accrued thereon but for  the commencement of such proceedings)
shall first be  paid in full  before any payment  or distribution, whether  in
cash, securities  or  other property,  shall  be made  to  any holder  of  any
Subordinated Debt on account of any Subordinated Debt. 

     (e)    So  long  as any Senior Debt  remains outstanding, the  holders of
the Subordinated Debt or  any trustee or other representative acting  on their
behalf  may not  declare all  or any  part of  the Subordinated  Debt  due and
payable prior  to maturity, and the  holders of Subordinated Debt  may take no
further  action  to declare  such  Subordinated Debt  due and  payable,  or to
enforce obligations  in respect of such Subordinated  Debt, including, without
limitation, the exercise of any other remedy. 

     (f)    If  any payment or distribution of any character  or any security,
whether in cash, securities or other property, shall be received by any holder
of Subordinated  Debt in contravention of  any of the terms  hereof and before
all the Senior Debt shall have been paid in full, such payment or distribution
or security  shall be received in trust for the  benefit of, and shall be paid
over or delivered  and transferred to, the  holders of the Senior  Debt at the
time outstanding in  accordance with the  priorities then existing  among such
holders for application to the payment of all Senior Debt remaining unpaid, to
the extent necessary to pay all such Senior Debt in full.  In the event of the
failure of any holder of any  Subordinated Debt to endorse or assign any  such
payment,  distribution  or security,  each  holder of  Senior  Debt  is hereby
irrevocably authorized to endorse or assign the same.

     (g)    No  present  or   future  holder  of  any  Senior  Debt  shall  be
prejudiced in the right  to enforce subordination of Subordinated Debt  by any
act or failure  to act on the part of the Companies.  Nothing contained herein
shall impair, as  between the Companies  and the  holder of this  Subordinated
Debt,  the  obligation of  the  Companies  to pay  to  the  holder hereof  the
principal hereof and interest hereon as and when the same shall become due and
payable in accordance with the terms hereof.  

     (h)    Upon  the  payment in  full of  all Senior  Debt,  the holders  of
Subordinated Debt shall be subrogated  to all rights of any holders  of Senior
Debt to receive any further payments or distributions applicable to the Senior
Debt  until the Subordinated Debt  shall have been paid in  full, and, for the
purposes of  such subrogation,  no  payment or  distribution received  by  the
holders of  Senior Debt  of cash,  securities or other  property to  which the
holders of the  Subordinated Debt would  have been  entitled except for  these
subordination  provisions shall, as  between the  Companies and  its creditors
other than  the holders of  Senior Debt, on the  one hand, and  the holders of
Subordinated Debt, on the other, be deemed to  be a payment or distribution by
the Companies to or on account of Senior Debt.

     (i)     No  Subordinate  Debt  may  be   secured  or  subject  to  credit
enhancement.  

     (j)    The provisions  in  sections (a) through  (i) above  shall not  be
amended or  modified and no term  or provision hereof shall  be waived without
the express prior written consent of the holders of Senior Debt.

     (k)    The  holders of this  Subordinated Debt hereby  (i) undertake  and
agree to execute,  verify, and  deliver and  file proofs  of claim,  consents,
assignments or  other instruments which any  holder of Senior Debt  may at any
time  reasonably require in  order to provide  and realize upon  any rights or
claims  pertaining  to  the  Subordinated   Debt  held  by  such  subordinated
noteholder and  to effectuate the full benefit  of the subordination contained
herein  and (ii) authorizes each holder of Senior Debt to take any action made
in good faith  as may be necessary or appropriate  to effect the subordination
provided for herein and  appoints each holder of Senior Debt  his attorney-in-
fact for such purposes.

     (l)    Any  holder of Senior Debt may  extend, renew, modify or amend the
terms of  Senior Debt or any  security therefor and release,  sell or exchange
such security and otherwise deal freely with the Companies or any affiliate to
the  same extent as could any person, all  without notice to or consent of the
holders  of  Subordinated  Debt  and without  affecting  the  liabilities  and
obligations  of the  holders of Subordinated  Debt pursuant  to the provisions
hereof.


                                                                     Exhibit A


                            [Draft Comfort Letter]

                                                              January __, 1997



Nissho Iwai Corporation
Nissho Iwai Europe PLC
c/o Nissho Iwai Europe PLC

Bastion House 
140 London Wall 
London 
EC2Y 5JT 
United Kingdom

     Re: The Loan Agreement between  TRB Holding Corporation ( TRBH ), Reading
         &  Bates (U.K.)  Limited ( R&B (U.K.) )  and Nissho  Iwai Europe PLC,
         dated as  of December 14, 1996 (the   Loan Agreement ; terms used and
         not  defined herein,  shall have  the meanings  assigned in  the Loan

         Agreement)

Gentlemen:

         This letter is provided to  you in order to induce you  to enter into
the  above-referenced  Loan  Agreement  and  other  documents  in   connection
therewith.  

         It  is the intention of Reading &  Bates Corporation (a) that it will
continue  its ownership interest in TRBH, TRB Subsidiary Corporation ( TRBS ),

R& B (U.K.), and Reading & Bates Drilling Co. (collectively,  the  Companies )
as each  is currently held, (b)  that the Companies will  continue to maintain
their  corporate existence  and remain  financially viable,  and (c)  that the
TRBH, TRBS and  the partnership or partnerships to be  created pursuant to the
Option Agreement (the   Partnership ) will perform their obligations under the
Loan Agreement and the Option Agreement dated December 14, 1996  between TRBH,
TRBS and Nissho  Iwai Corporation (the   Option Agreement ) and  the documents
entered into  in connection therewith.    Reading & Bates Corporation intends,
to the  extent necessary, to  continue to fund or  cause to be  funded working
capital to  the TRBH,  TRBS and  the Partnership by  means of  an intercompany
revolving  credit  facility(ies)  in  order  to  allow  TRBH,  TRBS   and  the
Partnership to continue to meet any shortage of daily operating  expenses, any
lay-up  costs  during stacked  periods  and any  conversion  or  upgrade costs
necessary for a new charter contract, as well as minimum debt service required
under the Loan Agreement. 

         Reading & Bates Corporation intends  to cause (a) each of  TRBH, TRBS
and the Partnership  to perform its  obligations, if any,  under each  Charter
Agreement  and the  Bareboat Charter,  (b) R&B (U.K.)  to continue  performing
their obligations  under the Amended  Agreement dated March 30,  1995, between
Britoil  PLC  and  BP  Exploration  Operating  Company  Limited,  as  amended,
supplemented  and  novated by  Novation  Agreements  dated  July 10, 1996  and
August 30, 1996 pursuant to which R&B (U.K.) has assumed thereunder all of the
rights,  duties and  obligations of Britoil  (Beta) Limited  and the documents
executed in  connection therewith  and (c)  Reading &  Bates  Drilling Co.  to
perform its obligations under the Subordination Agreement.

                             Sincerely,

                             READING & BATES CORPORATION




                             By:_______________________________
                             Name:_____________________________
                             Title:______________________________


                                                                     Exhibit B


                        [Opinion of Borrower s Counsel]



                                                            December ___, 1996

Nissho Iwai Europe PLC
c/o Baker & Botts, L.L.P.
3000 One Shell Plaza

910 Louisiana
Houston, Texas 77002

Ladies and Gentlemen:

I  am  General  Counsel  to  Reading &  Bates  Development  Co.,   a  Delaware
corporation  (the  "Borrower"),  Reading  & Bates  (U.K.)  Limited,  a company
organized under  the laws  of the United  Kingdom ("Reading &  Bates (U.K.)"),
Reading & Bates Corporation, a  Delaware corporation ( Reading &  Bates Co. ),
and Reading  &Bates Drilling Co., an Oklahoma  corporation ("RB Drilling"; the

Borrower,  Reading & Bates  (U.K.),  Reading  &  Bates Co.  and  RB  Drilling,
collectively, the "Companies"), in connection with the execution and  delivery
of  the Loan Agreement  dated as of  December 14, 1996  (the  Loan Agreement )
between the Borrower, RB  Drilling and you, pursuant to which  you have made a
loan to  the Borrower in order for the  Borrower to finance the oil production
vessel   Seillean , Gross Register  Tons (GRT): 50,928.00,  Net Register Tons:
15,278.00,  Length:  236.47 meters,  Width: 37  meters,  Depth: 19.80  meters,
Permanent  Navigation  Patent No.  23272-96,  Radio Call  Letters:  3FPF6, and
Registration  No. 25519-PEXT,  and with  the  home port  of  Panama City,  the
Republic  of Panama  (the  Vessel ).  This opinion  is being furnished  to you
pursuant  to Section  5.01(g) of  the Loan  Agreement.  Capitalized  terms not
otherwise  defined herein  have the  meanings  ascribed to  them  in the  Loan
Agreement.

In this  connection and as a  basis for the opinions  hereinafter expressed, I
have examined executed originals of the following documents:

     (1) the Loan Agreement;

     (2) the Note;

     (3) the Bareboat Charter;

     (4) the Donan Charter Agreement;

     (5) the Collateral Assignment;

     (6) the Assignment of Charter;

     (7) the Ship Mortgage;

     (8) the Option Agreement;

     (9) the Comfort Letter;

     (10) the Assignment of Insurance Proceeds;

     (11) the financing statements  (the "Financing  Statements")  executed by
the Charterer in  connection with the Collateral  Assignment, in favor  of the
owner as the secured party;

     (12) the Subordination Agreement; and

     (13) the Debentures.

(collectively referred to as the "Documents").

As General Counsel to the Companies, I am familiar with the relevant corporate
proceedings and have  examined such documents and records of the Companies and
have  obtained such  other information as  I have  deemed necessary  to form a
basis for the opinions expressed below.

Based upon the foregoing and having regard to the legal  considerations I deem
relevant, and  subject to  the  assumptions, limitations,  qualifications  and
exceptions set forth herein, it is my opinion that:

1.  Each  of  the  Companies  is  a  corporation  duly organized  and  validly
    existing  in  good  standing   under  the  laws  of   the  state  of   its
    incorporation  and has the  corporate power  and authority  (i) to  own or
    lease and operate its properties and carry on  its business as carried  on
    at the  date hereof, and (ii)  to execute and  deliver, and to  consummate
    the transactions contemplated by, the Documents to which it is a party.

2.  Each of  such  Companies  has  taken  all necessary  corporate  action  to
    authorize  the execution  and  delivery  of, and  the consummation  of the
    transactions contemplated  by, each  of the  Documents to  which  it is  a
    party.  Such execution  and delivery, and consummation of the transactions
    contemplated by the Documents,  will not (i) result in a violation of each
    such Company's certificate of  incorporation or bylaws, or to my knowledge
    any law, order or  governmental regulation to which  each such Company  is
    subject,  (ii) result  in  a  violation of  or constitute  a breach  of or
    default under  any agreement or  order binding upon  and material  to such
    Company,  or (iii)  violate  any  requirement of  law  applicable to  such
    Company.  Each of the Documents to which  each of the Companies is a party
    has  been  duly  authorized,   executed  and  delivered  by  each  of  the
    Companies.

3.  Each of the Documents  constitutes the legal, valid and binding obligation
    of each of the Companies a party thereto. 

4.  If, notwithstanding the choice  of New  York law contained therein,  Texas
    law were applied to the Documents, each of  the Documents would constitute
    the legal, valid and binding obligations of each  of the Companies a party
    thereto.

5.  The execution and delivery  of, and  the consummation of the  transactions
    by, each of the Companies of the Documents to  which it is a party  do not
    require, with respect to  any of such Companies,  the consent or  approval
    of  any regulatory authority or governmental body of  the United States or
    the State  of Texas  (except for the  filings referred to  herein) or  any
    regulatory  authority or  governmental  authority  in connection  with any
    application of the General Corporation Law of the State of Delaware.

6.  No consent or approval of the U. S.  Department of Transportation Maritime
    Administration,  the United  States  Coast  Guard  ("USCG") or  any  other
    entity  having jurisdiction over  the Vessel  or any  of the  Companies is
    required  to consummate  the  transactions  contemplated under  or by  the
    Documents.

7.  The Financing  Statements are in  the proper form  for filing  pursuant to
    the Uniform Commercial Code in effect in the  State of Texas (the  "UCC"),
    and  upon filing  with  the  Secretary of  State  of the  State  of  Texas
    pursuant to  the UCC, will  perfect your security  interest in  all right,
    title and interest of  the applicable  debtor in the collateral  described
    in such Financing Statements.

8.  No  action, suit or proceeding is pending or,  to my knowledge, threatened
    against any of the Companies before or by any court, arbitration panel  or
    administrative agency which, if  adversely determined, could reasonably be
    expected  to result  in  a material  adverse  change  in  the business  or
    condition of  any of the Companies  or prevent any  of the Companies  from
    performing any of its obligations under the Documents.

My  opinions   are  subject   to  the  following   additional  qualifications,
limitations and assumptions:


     (i)     the effect of applicable bankruptcy,  insolvency, reorganization,
             moratorium, fraudulent  transfer  or  conveyance  or  other  laws
             affecting   creditors'   rights   generally   and   the   general
             principles   of  equity  (regardless  of whether  considered in a
             proceeding in  equity or at law);

     (ii)    the  due  organization  and  existence  of  all  parties  to  the
             Documents other than the Companies;

     (iii)   the  legal right  and the  corporate power  and authority  of all
             parties to  the Documents (other than  the Companies) to  execute
             and deliver, and to  consummate the transactions contemplated by,
             the Documents to which they are parties;

     (iv)    the due authorization, execution and delivery of the Documents by
             all parties to the Documents (other than the Companies);

     (v)     certain  remedial,  waiver  and other provisions of the Documents
             are or  may  be unenforceable in whole or in part under Texas law
             or the law of the  United  States,  but  the  inclusion  of  such
             provisions will not make  the  rights and  remedies  provided for
             in  such  Documents, taken  as  a  whole,   inadequate   for  the
             practical realization of the rights and benefits provided thereby;

     (vi)    no opinion is  expressed as to  the enforceability  of choice  of
             law, choice of jurisdiction and forum selection clauses contained
             in the Documents; and

     (vii)   (a)  you will  comply  with usury  laws  which may  apply to  the
             provisions  of the  Loan  Agreement or  other  Documents,  (b) in
             connection   therewith   you   will   take   into   account   any
             consideration, in  whatsoever form, which could  constitute or be
             deemed to  constitute interest under Texas  law, (c) there  is no
             other  consideration  paid or  to  be  paid by  the  Borrower  in
             connection with  the  Loan Agreement  other than  that  reflected
             therein, and (d)  Alamo Lumber Company  v. Gold,  661 S.W.2d  926
             (Tex.  1984)  would not  be  extended  and/or  applicable to  the
             transactions described in the Loan Agreement and other Documents.

With respect  to my  opinions set  forth above about  the corporate  power and
authority, and  due authorization, execution and delivery  of the Documents, I
have   relied  on  certificates   of  public   authorities  in   the  relevant
jurisdictions of incorporation, corporate documents relating to the  formation
and  maintenance  of each  of  such  Companies prepared  by  counsel in  those
jurisdictions, and practices  and procedures that I have  customarily followed
(and believe to be proper) in acting as General Counsel to such Companies.

I express opinions on the matters set forth herein only insofar as they relate
to the  laws of the  State of  Texas and  the State of  Oklahoma, the  General
Corporation  Law  of  the  State  of  Delaware,  and  applicable  federal laws
(including maritime laws) of the United States.

The  opinions expressed herein are rendered solely  for the benefit of you and
your counsel and may not  be relied upon or  used by any other person  without
our prior written consent.

                       Very truly yours



                       Wayne K. Hillin
                       Senior Vice President
                       and General Counsel



                                                                    Exhibit C

                      [Opinion of Baker & Botts, L.L.P.]



                                                            December ___, 1996


Nissho Iwai Europe PLC
c/o Baker & Botts, L.L.P.

3000 One Shell Plaza
910 Louisiana
Houston, Texas 77002

Ladies and Gentlemen:

         We  acted as  your  counsel  in  connection with  the  execution  and
delivery  of the  Loan Agreement  dated  as of  December 14,  1996 (the   Loan
Agreement )  between  TRB Holding  Corporation,  a  Delaware corporation  (the
"Borrower"),  Reading &  Bates (U.K.) Limited,  a company  organized under the
laws of  the United Kingdom ("Reading  & Bates (U.K.)"), and  you, pursuant to
which  you  have made  loans to  the  Borrower in  order  for the  Borrower to
refinance the  oil production  vessel  "Seillean", a  vessel of  50,928  gross
registered tons,  Call Letters 3FPF6 and Registration  No. 25519-PEXT and with
the  home  port of  Panama  City,  the  Republic  of  Panama  (the  "Vessel").
Capitalized terms  not otherwise defined herein have  the meanings assigned to
them in the Loan Agreement. 

         In  this  connection and  as  a basis  for  the  opinions hereinafter
expressed, we have examined executed originals of the following documents:


     (1) the Loan Agreement;

     (2) the Note;

     (3) the Option Agreement; and

     (4) the Assignment of Insurance Proceeds;

(collectively referred to as the "Documents").


         In  rendering the  opinions  expressed below,  we have  assumed, with
respect to the Documents that:

     (a) the  Documents  constitute  legal,  valid,  binding  and  enforceable
         obligations of, all of the parties  to such documents other than  the
         Borrower,  Reading & Bates  (U.K.) and TRB  Subsidiary Corporation, a
         Delaware corporation ("TRB Subsidiary"; the Borrower, Reading & Bates
         (U.K.) and TRB Subsidiary, collectively, the "Loan Parties");

     (b) the  Documents have  been  duly  authorized  by and  have  been  duly
         executed and  delivered by  each of  the parties  thereto,  and   all
         signatories to the Documents have been duly authorized; and

     (c) all  of the  other parties  to the  Documents are duly  organized and
         validly  existing  and  have  the  power  and  authority  (corporate,
         partnership,  regulatory,   fiduciary,  contractual  and   other)  to
         execute, deliver and perform such documents.


         Based upon the foregoing and  subject to the assumptions, exclusions,
limitations and  qualifications set  forth below, we  are of the  opinion that
each of the  Documents constitutes the legal, valid and binding obligations of
the Loan Party thereto, enforceable against such Person in accordance with its
terms, except  as may  be limited  by bankruptcy, insolvency,  reorganization,
fraudulent transfer, moratorium or other similar laws relating to or affecting
the  rights of  creditors  generally,  and  by general  principles  of  equity
(regardless  of whether  considered in  a  proceeding in  equity  or at  law),
including,  without limitation,  (i) the possible  unavailability of  specific
performance,   injunctive  relief   or   any  other   equitable  remedy,   and
(ii) concepts of materiality, reasonableness, good faith and fair dealing.

         The foregoing  opinions are  subject  to the  following  assumptions,
exclusions, limitations and qualifications:

     (a) We express no opinion as to  the enforceability of (i) any  provision
         purporting to establish any  evidentiary standard or to  waive either
         illegality as a defense to the performance of contract obligations or
         any other defense  to such performance which  cannot, as a  matter of

         law, be effectively  waived; (ii) any  provision purporting to  waive
         notice; (iii) any severability provision or, to the extent purporting
         to  protect  any  person  from  the  consequences  of  such  person's
         negligence  or  misconduct, any  indemnity  provisions;  or (iv)  any
         provision purporting  to irrevocably appoint any  person as attorney-
         in-fact for any Obligor.

     (b) We express  no opinion with respect  to title to any  property or the
         perfection or priority of any Lien created under the Documents.  


         The foregoing opinions  are limited in  all respects to  the existing
laws of the State of New York, and the federal laws of the United States, each
as in effect on the date hereof, and no opinion is expressed  herein as to any
matters  governed by  the laws  of any  other jurisdiction.   We  undertake no
obligation or responsibility  to update or  supplement our opinions  set forth
herein in response to subsequent changes in the law or future events affecting
any transaction contemplated by any Document.

         This opinion  letter is,  pursuant  to Section  5.01(g) of  the  Loan
Agreement and may not be relied upon by any other person.


                                 Very truly yours,


SK
                                                                     Exhibit D


                             _____________, 1997  



Nissho Iwai Europe plc


                                 RE: Seillean


Ladies and Gentlemen:

         We have  acted as your special Panamanian  counsel in connection with
the transactions contemplated  by Loan Agreement dated as of December 14, 1996
(the  Loan Agreement ), among TRB Holding Corporation, a Delaware corporation,
Reading & Bates (U.K.) Limited, an English limited liability company, and you.
  Capitalized terms used  herein and not  otherwise defined herein  shall have
the meanings assigned thereto in the Loan Agreement.


         In issuing  this opinion, we have examined  drafts or executed copies
of the following documents (the  Transaction Documents ):

         (a)      the Loan Agreement;

         (b)      the Ship Mortgage; and 

         (c)      the Assignment of Charter.

We have also examined provisions of Panamanian laws and regulations as we have
deemed relevant.

         In issuing this opinion, we have  assumed the following:  (i) the due
organization,  existence  and good  standing  of  all of  the  parties to  the
Transaction  Documents and the  sufficiency of their  individual, corporate or
limited liability  company, as  the case  may be, capacity  to enter  into, be
bound by and  perform their respective rights and obligations under such deeds
or contracts;  (ii) the taking of  all necessary corporate or  other action by
all of the parties  to the Transaction Documents  to enter into said deeds  or
contracts and to  be bound thereby in  accordance with their  respective terms
other than  such corporate actions required  by the laws of  Panama; (iii) the
conformity of all material terms with  the original executed documents of  all
documents submitted to us as drafts or copies; and (iv) the genuineness of all
signatures  not  placed before  us  or  recognized to  be  authentic before  a
Panamanian Notary Public or ultimately before a Panamanian Consul.

         Based on the foregoing, we are of the following opinions:

         1.       The  vessel  Seillean   is  registered in  the  name of  TRB
Holding Corporation.

         2.       The Ship  Mortgage, the Assignment  of Charter and  the Loan
Agreement, are valid binding and enforceable as between the parties thereto in
accordance  with their  respective terms,  subject to  limitations imposed  by
bankruptcy,  insolvency, reorganization  or  other  laws affecting  creditors 
rights generally.

         3.       The Ship Mortgage has been preliminary registered the Panama
Public Registry, (Microfilm) Mercantile  Section, at Microjacket  ___________,
Frame _____, since  __________________, 1997.  As a result of said preliminary
registration, the Ship Mortgage constitutes a first naval mortgage lien on the
Vessel  fully effective  against  third  parties  and, except  as  hereinafter
provided, having priority  over all other liens  or privileges on  the Vessel,
and it shall continue to constitute such a first naval mortgage lien as of the
date of preliminary  registration so long  as the Ship  Mortgage is filed  for
definite  registration  within six  months  of the  said  date  of preliminary
registration and the definite registration is completed.

         By statute, the following liens or privileges have priority  over the
naval mortgage:

         (a)      Amounts due the Panamanian government  for the Annual Tax of
                  the Vessel;

         (b)      Court costs  incurred in  the  common interest  of  maritime
                  creditors;

         (c)      Expenses, indemnities and wages for aid and salvage due from
                  the last voyage; 

         (d)      Wages, compensations and indemnities of the master and  crew
                  due from the last voyage;

         (e)      Wages  and stipends  due  to stevedores  and other  wharfers
                  engaged directly by the owner, agent or master of the vessel
                  for  the  loading  and unloading  of  the  vessel upon  last
                  arrival;

         (f)      Compensation   for   damages  incurred   through   fault  or
                  negligence; and 

         (g)      Contributions to general average.

         4.       Except  for the  aforesaid definite  registrations  the Ship
Mortgage, there are no  further registrations, recordings, filings  or similar
procedure necessary or  desirable in the Republic of Panama in connection with
the  Transaction  Documents in  order  to create,  perfect  or  preserve their
respective validity or enforceability.

         5.       No   consents,   licenses,  approvals,   authorizations   or
exemptions of any governmental or other regulatory authority, bureau or agency
of the Republic of Panama are required for or in connection with  the validity
or enforceability of the Transaction Documents.

         6.       No  payments, deductions  or withholdings  must be  made for
taxes in the  Republic of Panama in respect to  compliance with or enforcement
of the Transaction Documents.

         7.       Except for any preliminary and definite registration fees of
the Ship Mortgage,, which  have already been paid,  and except that if any  of
the Transaction Documents  are to be  used in  evidence in the  courts of  the
Republic of Panama, stamp taxes  at the rate of US$0.10 for each  US$100.00 of
face value must  be adhered thereto,  there are no  stamps or registration  or
similar taxes, fees or charges payable  in respect of the execution,  delivery
of enforcement  of the Ship Mortgage.  With regards  to the Ship Mortgage, the
amounts  paid in  notarial paper for  their respective  protocolization and in
registration  fees would be  deducted from the  applicable stamp tax.   In any
event,  such  stamp  taxes  are  not  due  unless  and  until  the  respective
Transaction Document is used in evidence as indicated in this paragraph.

         8.       The choice of  New York Law, English law, and of the Federal
Laws  of the United States, as  the case may be, to  govern the Loan Agreement
and the Assignment  of Charter, respectively, constitute a valid choice of law
and should be recognized by the courts of the Republic of Panama.

         9.       Under the law of the Republic of Panama, the  perfection and
effect  of  perfection of  the  Lender s  security interest  and  lien in  the
Charters and  Rents (as such terms  are defined in the  Assignment of Charter)
shall be governed  by the law of  the State of  New York and the  jurisdiction
under which the Charters and Rents are created.

         We are attorneys  qualified to practice law  only in the  Republic of
Panama.   Accordingly we express  no opinion with respect  to the laws  of any
other jurisdiction.

                             Yours truly,


                                                                     Exhibit E

                             January __, 1997  


Nissho Iwai Europe plc


                                 RE: Seillean


Ladies and Gentlemen:

         We have acted  as your special English counsel in connection with the
transactions contemplated by Loan Agreement dated as of December 14, 1996 (the
Loan Agreement),   among  TRB  Holding  Corporation, a  Delaware  corporation,
Reading & Bates (U.K.) Limited, an English limited liability company, and you.
Capitalized  terms  used  herein and not  otherwise defined herein  shall have
the meanings assigned thereto in the Loan Agreement.


         In issuing  this opinion, we have examined  drafts or executed copies
of the following documents (the  Transaction Documents ):

         (a)      the Loan Agreement;

         (b)      the Ship Mortgage;  

         (c)      the Assignment of Charter; and

         (d)      the Debentures


We have  also examined provisions of  English laws and regulations  as we have
deemed relevant.

         In issuing  this opinion, we have assumed the following:  (i) the due
organization,  existence  and good  standing  of  all of  the  parties to  the
Transaction Documents and  the sufficiency of  their individual, corporate  or
limited liability  company, as the  case may  be, capacity to  enter into,  be
bound by and  perform their respective rights and obligations under such deeds
or contracts;  (ii) the taking of  all necessary corporate or  other action by
all of  the parties to the  Transaction Documents to enter into  said deeds or
contracts and to  be bound thereby in  accordance with their  respective terms
other  than  such  corporate  actions  required  by  English  law;  (iii)  the
conformity of all material terms with  the original executed documents of  all
documents submitted to us as drafts or copies; and (iv) the genuineness of all
signatures.

         Based on the foregoing, we are of the following opinions:

         1.       The Assignment  of Charter  and  the Debentures  are  valid,
binding and  enforceable against  the Borrower and  Reading Bates (U.K.).   If
notwithstanding the  express choice  of law contained  therein, the  following
documents  were to  be construed  in  accordance with  English  law, the  Ship
Mortgage and the Loan Agreement, are valid, binding and enforceable as between
the  parties thereto  in  accordance  with  their respective  terms,  but  the
enforceability thereof  may be subject  to limitations imposed  by bankruptcy,
insolvency,  reorganization   or  other  laws   affecting  creditors    rights
generally.

         2.       There are no further  registrations, recordings, filings  or
similar procedure  necessary or desirable in the  United Kingdom in connection
with the Transaction Documents in order  to create, perfect or preserve  their
respective validity or enforceability.

         3.       No   consents,   licenses,  approvals,   authorizations   or
exemptions of any governmental or other regulatory authority, bureau or agency
of the United  Kingdom are required for or in connection  with the validity or
enforceability of the Transaction Documents.

         4.       No  payments, deductions  or withholdings  must be  made for
taxes in  the United Kingdom in  respect to compliance with  or enforcement of
the Transaction Documents.

         5.       The choice of New York Law  and Panamanian law, as the  case
may  be, to  govern the  Loan Agreement  and the Ship  Mortgages respectively,
constitute a valid choice of law and should be recognized by the courts of the
United Kingdom. 

         6.       Under  the law  of the  United  Kingdom, the  perfection and
effect  of  perfection of  the  Lender s  security interest  and  lien in  the
Earnings  (as  such terms are defined in  the Assignment of Charter)  shall be
governed  by  the law  of the  United Kingdom.    Upon [describe  actions] the
Lender s security interest and lien in the Earnings shall be perfected.

         7.       Under the law  of the United Kingdom, you, as a leader under
the  transactions  contemplated  by  the  Loan shall  not  be  liable  for the
pollution and  other liabilities  of the Borrower  or Reading &  Bates (U.K.).
Under  the law  of  the United  Kingdom,  NIC as  a [limited  partner]  in the
Partnership, shall not  be liable for the  pollution and other  liabilities of
the Partnership, the Borrower or Reading & Bates (U.K.).


                             Yours truly,



                                                                     Exhibit F


                             January __, 1997  


Nissho Iwai Corporation
4-5, Akasaka 2-chome
Minato-Ku, Tokyo 107
Japan


Nissho Iwai Europe Plc
Bastion House
140 London Wall
London
EC2Y 5JT

Reading & Bates Corporation
901 Threadneedle, Suite 200
Houston, Texas 77079


Ladies and Gentlemen:

         We have acted  as your special  Cayman Islands counsel  in connection
with the creation  of RB FPSO L.P., a Cayman  Islands limited partnership (the
Partnership),  and  the  Partnership's   Limited  Partnership  Agreement  (the
Partnership Agreement)  and  the  transactions   contemplated by (a)  the Loan
Agreement dated as of December 14,  1996 (the  Loan Agreement ), among  Nissho
Iwai  Europe  Plc  (the    Lender ),  TRB  Holding  Corporation,   a  Delaware
corporation ( TRBH ),  Reading  & Bates  (U.K.)  Limited, an  English  limited
liability  company  ( RBUK ),  as  amended  by  the  First  Amendment  to Loan
Agreement dated  as of  January  ___, 1997,  and Nissho  Iwai  Europe PLC,  an
English corporation,  and (b)  the Option  Agreement (the   Option Agreement )
dated as  of December  14, 1996,   among TRBH,  TRB Subsidiary  Corporation, a
Delaware   corporation  ( TRBS ),   and  Nissho   Iwai  Corporation   ( NIC ).
Capitalized terms used  herein and not otherwise defined herein shall have the
meanings assigned thereto in the Loan Agreement.

         In issuing  this opinion, we have examined  drafts or executed copies
of the following documents (the  Transaction Documents ):


     (a) the Loan Agreement; 

     (b) the Option Agreement; 

     (c) the Partnership Agreement;

     (d) the Bill of Sales made by TRBH and TRBS in favor of the Partnership;

     (e) the Bareboat Charter; 

     (f) the Amendment to Bareboat Charter;

     (g) the Ship Mortgage  as amended by the  First Amendment to  First Naval
         Mortgage dated as of __________, 1997;   and the Second Amendment  to
         First Naval Mortgage dated as of ____________, 1997;

     (h) the Novation Agreement dated as of January __, 1997 among TRBH, TRBS,
         the Partnership and RBUK.

         The foregoing  documents are herein  referred to as  the  Transaction
Documents. 

We have also examined provisions of the Cayman Islands laws and regulations as
we have deemed relevant.

         In  issuing this  opinion, we  have assumed  the following:   (i) the
conformity of all material terms with  the original executed documents of  all
documents submitted to us as drafts or copies; and (ii) the genuineness of all
signatures.

         Based on the foregoing, we are of the following opinions:

         1.       The Partnership is duly formed and  validly existing in good
standing under the laws of  the Cayman Islands.  The Partnership  Agreement is
the valid,  binding and enforceable obligation  of each of TRBH,  TRBS and the
Partnership. 

         2.       TRBH  is duly  qualified and in  good standing  as a foreign
corporation in the Cayman Islands.

         3.       The  Transaction Documents  to  which the  Partnership is  a
party have  been duly  authorized, executed  and delivered  on  behalf of  the
Partnership.

         4.       The Option Agreement creates  a valid and enforceable option
in favor  of NIC to  purchase TRBS   10% limited partnership  interest in  the
Partnership.

         5.       There are  no registrations, recordings,  filings or similar
procedure necessary  or desirable under Cayman Islands  law in connection with
the Transaction Documents.

         6.       The execution  and delivery by the  Partnership, TRBH, TRBS,
RBUK, NIC  or the Lender of the  Transaction Document to which  it is a party,
and the  performance of  its obligations thereunder  do not conflict  with, or
result  in a breach of the terms, conditions or provisions of, or constitute a
default under, or result in any violation of, or result in the creation of any
Lien upon  any of  the properties or  assets of  such Obligor pursuant  to, or
require any authorization, consent, approval, exception or other action  by or
notice to  or filing  with any court,  administrative or governmental  body or
other Person pursuant to (a) any Cayman Islands statute, rule or regulation or
(b) the Partnership Agreement.

          7.       There  are  no  taxes,  fees  or other governmental charges
payable  under  Cayman  Islands  law  in  connection  with  the   transactions
contemplated by the Transaction Document.

          8.       Under  the  law  of  Cayman  Islands, no limited partner in
the Partnership shall be liable or  otherwise obligated for the pollution  and
other liabilities or  obligations of the  Partnership, the general  partner of
the Partnership or RBUK.


                                    Very truly yours,



                                                                     Exhibit H

                        [Letterhead of Reading & Bates]


                                                             December __, 1996


Nissho Iwai Corporation ( Nissho Iwai )
4-5, Akasaka 2-chome, Minato-ku
Tokyo 107 Japan

      Re:   The Loan  Agreement dated  as  of December  14, 1996  between  TRB
            Holding  Corporation, Reading  & Bates  (U.K.) Limited  and Nissho
            Iwai Europe PLC ( NIEP ) (the  Loan Agreement )

Ladies and Gentlemen:

            In order to induce NIEP to enter into the Loan  Agreement, Reading
& Bates agrees  that  Nissho Iwai will have  a first refusal right to  arrange
future financing facilities as and when needed for upgrading and conversion of
the Seillean.  Nissho Iwai  will be given five business days to  elect to make
the proposed financing  on terms which  are substantially equivalent  to those
proposed or more favorable to  Reading & Bates.  In addition,  Reading & Bates
agrees that Nissho Iwai shall be given opportunities to be involved in trading
transactions  for any  future upgrading and  conversion work  on the Seillean,
including the opportunity to provide materials, supplies and services.  Nissho
Iwai will  be given a reasonable time to elect  to be involved in the proposed
trading transaction  on  terms which  are  substantially equivalent  to  those
proposed or more favorable to Reading & Bates.

                                          Sincerely,

                                          READING & BATES CORPORATION



                               OPTION AGREEMENT

            OPTION  AGREEMENT (this   Agreement )  dated as  of December  ___,
1996,   among  RB Drilling  Co., an  Oklahoma corporation ( RB  Drilling ) and
Nissho Iwai Corporation, a Japanese corporation (the  NIC );

                             W I T N E S S E T H:


      WHEREAS,  NISSHO IWAI EUROPE PLC, an English corporation (the  Lender ),
has made  loans (the  Loan )  to READING & BATES  DEVELOPMENT CO.,  a Delaware
corporation  (the  Borrower ),  pursuant to  the  Loan Agreement  dated as  of
December ___,  1996 between the Lender and the Borrower (such agreement, as it
may  be  amended,  restated,  supplemented,  extended,  renewed  or  otherwise
modified from time to time, being the  Loan Agreement );

      WHEREAS, the  Borrower and  RB Drilling  have agreed  to form a  limited
partnership (the   Partnership ) in a  jurisdiction mutually agreeable  to the
Lender,  RB Drilling and  the Borrower  soon after  the execution of  the Loan
Agreement;

      WHEREAS, the Borrower has agreed to contribute that certain vessel known
as  Seillean ,  Gross  Register  Tons (GRT):  50,928.00,  Net  Register  Tons:
15,278.00,  Length: 236.47  meters,  Width: 37  meters,  Depth: 19.80  meters,
Permanent  Navigation Patent  No. 23272-96,  Radio Call  Letters: 3FPF6,   and
Registration No.  25519-PEXT, and  with  the home  port  of Panama  City,  the
Republic  of Panama  (the   Vessel ),  to the  Partnership  as the  Borrower's
initial capital  contribution which  shall entitle  the Borrower  to a  ninety
percent  (90%)  general partnership  interest  in the  Partnership,  and which
Vessel shall be encumbered only by the mortgage lien of the Lender; 

      WHEREAS,  RB  Drilling has  agreed  to contribute  Four  Million Dollars
($4,000,000)  to the  Partnership  as its  initial capital  contribution which
shall entitle RB Drilling to a ten percent (10%) limited  partnership interest
in the Partnership;

      WHEREAS, as a condition precedent  to the Lender making the Loan  to the
Borrower, RB Drilling has granted to NIC  an option to purchase RB  Drilling s
ten percent (10%) limited partnership interest in the Partnership; 

      NOW,  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
covenants and  promises  herein contained  and  for other  good  and  valuable
consideration,  the receipt,  adequacy  and sufficiency  of  which are  hereby
acknowledged, RB Drilling and NIC hereby agree as follows:

1.    Definitions.  For purposes of  this Agreement, the following terms shall
have the meanings set forth below:

             Authorized CAPEX shall mean  the aggregate amount, on  the Option
Closing Date, of capital  expenditures determined in accordance with  GAAP (a)
incurred by the Partnership on the  Vessel during the Option Period, (b) which
are within the  definition of a capital expenditure attached hereto as Exhibit
A, and (c) less  $__________ per year (prorated  based on a 365-day year)  for
the Option Period.


             GAAP   means  generally  accepted  accounting principles  in  the
United States of America, consistently applied.

             Option Closing Date  shall mean the date specified in the  Option
Exercise Notice as the date on which NIC shall exercise the option.

             Option Period   shall mean the period of time between the date of
this Agreement and the Option Closing Date.

             Reimburseable CAPEX  shall mean the  book value of all Authorized
CAPEX on the Option Closing Date.  In no event shall Reimburseable CAPEX  be a
negative number.

2.    Option.

            (a)         Grant of Option.  Subject to the terms  and conditions
of  this Agreement, NIC shall have the  right and option (the  Option ) at any
time during the  term of this  Agreement, but not  the obligation (unless  and
until NIC has delivered  to RB Drilling written  notice of intent to  exercise
the option (the   Option Exercise  Notice )), to purchase  and accept from  RB
Drilling a ten percent (10%)  limited partnership interest in the  Partnership
(the  Option Interest ).

            (b)         Option  Exercise Price.    The  purchase price  of  RB
Drilling s ten percent  (10%) interest  in the Partnership  (the  Full  Option
Interest ) to be paid on the Option Closing Date by  NIC, upon the exercise of
the Option by NIC  pursuant to, and in  accordance with, Section 2(c) of  this
Agreement,  shall be an amount  equal to Four  Million Two Hundred Twenty-Five
Thousand  Dollars ($4,225,000) plus  ten percent (10%)  of Reimbursable CAPEX.
In its sole  discretion, NIC may purchase  less than the Full  Option Interest
(the  Diluted Option Interest ) by paying on the Option Closing Date, upon the
exercise of  the Option by  NIC pursuant to,  and in accordance  with, Section
2(c) of  this Agreement, an amount  equal to Four Million  Two Hundred Twenty-
Five Thousand Dollars  ($4,225,000) (the  Diluted Option Price ).   The amount
of  the Diluted Option  Interest shall be determined  by dividing Four Million
(4,000,000) by  the aggregate of Forty Million  (40,000,000) plus Reimbursable
CAPEX. 

            (c)         Exercise of Option. The Option may be exercised by NIC
at any  time prior to  December ___, 1999.   NIC shall exercise  the Option by
delivering the Option Exercise Notice to RB Drilling at least thirty (30) days
prior to the  Option Closing Date, stating that NIC  is exercising the Option,
subject to the  terms and conditions of this Agreement,  to acquire the Option
Interest or the Diluted Option Interest on the Option Closing Date.

            (d)         Instrument of Transfer.  RB Drilling shall execute and
deliver to NIC an assignment of the Option Interest on the Option Closing Date
in substantially the form of the Assignment attached hereto as Exhibit B.

            (e)         Repayment of Loan.  RB Drilling hereby agrees that all
monies paid by NIC to purchase the Option Interest may be paid by NIC directly
to the Lender for the purpose of repaying the Loan.

3.    Transfer  of Interests.  As long as  this Agreement is in effect NIC may
assign or transfer any portion of the Option Interest to any affiliate.


4.    Miscellaneous Provisions.

            (a)         Notices.   All notices, claims,  requests, demands and
other  communications hereunder shall  be in writing  and shall  be duly given
(including  telegraphic,  telex or  telecopy  communication) and  telegraphed,
telexed,  telecopied,  delivered   by  hand,  sent  by  prepaid  certified  or
registered mail or by overnight courier and addressed as follows:

                i)      If to NIC:


                        Nissho Iwai Corporation
                        4-5, Akasaka 2-chome, Minato-ku,
                        Tokyo 107 Japan
                        Telecopy No.: 81-3-3588-4547

                ii)     If to RB Drilling:

                        RB Drilling Co.
                                                      

                                                      

                        Telecopy No.:                 

or  such other addresses as the person to  whom notice is to be given may have
previously furnished to  the other parties hereto in writing in the manner set
forth  above.  Any notice or other  communication shall be deemed to have been
given, made  and received (i) except  as set forth  in clauses (ii)  and (iii)
below,  upon  receipt, (ii)  in  the case  of  a facsimile  transmission, upon
transmission thereof by the sender and issuance by the transmitting machine of
a confirmation slip indicating that the number of pages included in the notice
have been  transmitted without error  or (iii) in  the case  of a telex,  upon
receipt  of  an  answer back.    In  the case  of  notices  sent  by facsimile
transmission or telex, the  sender shall contemporaneously mail a  copy of the
notice to the addressee at the  address provided above.  However, such mailing
shall  in no  way alter  the time at  which the  facsimile notice  or telex is
deemed received.

            (b)         Waiver.   The waiver by any  party of a breach  of any
provision  of this  Agreement shall  not be  deemed a  continuing waiver  or a
waiver of  any subsequent breach, whether of the  same or of another provision
hereof.

            (c)         Headings.   The  headings  of  the  sections  of  this
Agreement  are  inserted  for convenience only and do not constitute a part of
this Agreement.

            (d)         Severability  of Provisions.  Any  provision  of  this
Agreement  which  is illegal,  invalid,  prohibited  or unenforceable  in  any
jurisdiction shall, as  to such jurisdiction, be ineffective to  the extent of
such   illegality,   invalidity,  prohibition   or   unenforceability  without
invalidating  or  impairing  the remaining  provisions  hereof,  and  any such
illegality, invalidity, prohibition  or unenforceability shall not  effect the
legality,   validity  or  enforceability  of   such  provision  in  any  other
jurisdiction.

            (e)         Survival.      The  covenants,   representations   and
warranties  of  the parties  hereto  contained  in this  Agreement  or in  any
schedule  or  document  delivered  pursuant  to  or in  connection  with  this
Agreement shall survive the  purchases and sales and  assumptions contemplated
hereby.

            (f)         Counterparts.   This Agreement may  be executed in two
or more counterparts, each  of which shall be  deemed an original, but all  of
which together shall constitute one and the same instrument.

            (g)         Successors and Assigns.  This Agreement shall inure to

the benefit of, and be  binding upon, the parties hereto and  their respective
successors and assigns.

            (h)         Term.   The term of this  Agreement shall be three (3)
years from the date of this Agreement.

            (i)         Governing Law.  This  Agreement shall be governed  by,
and construed and enforced  in accordance with, the  laws of the State of  New
York without giving effect to any conflicts of law provisions of such laws.

            IN WITNESS WHEREOF,  the parties  hereto have  duly executed  this
Agreement on the date first above written.

                                          RB DRILLING CO.



                                          By:                                 
                                          Name:                               
                                          Title:                              

                                          NISSHO IWAI CORPORATION


                                          By:                                 
                                          Name:                               

                                          Title:                              


                                                                     Exhibit N


                    AMENDMENT TO BAREBOAT CHARTER AGREEMENT


            This Amendment to Bareboat Charter Agreement (this  Amendment ) is
made  as of December 14, 1996, by  and between Reading & Bates (U.K.) Limited,
an English  limited liability  company with  its registered  office at  Harmon
House, 1 George  Street, Uxbridge, Middlesex,  UB8 1QQ ( Charterer ),  and TRB
Holding  Corporation,  a  Delaware  corporation, with  its  principal  offices
located at 901 Threadneedle, Suite 200, Houston, Texas 77079 U.S.A. ( Owner ).

                                   RECITALS

      1.    Owner is the sole owner of the whole of that  certain vessel known
as   Seillean ,  Gross Register  Tons  (GRT):  50,928.00; Net  Register  Tons:
15,278.00, Length:  236.47  meters, Width:  37  meters, Depth:  19.80  meters,
Permanent Navigation  Patent No.  23272-96, Radio  Call Letters:  3FPF6,   and
Registration No.  25519-PEXT,  and with  the  home port  of Panama  City,  the
Republic of Panama (the  Vessel ); and

      2.    Britoil PLC,  a company  organized under  the laws  of the  United
Kingdom  ( Britoil ), for itself and  on behalf of  the Donan Participants, as
defined therein,  and BP  Exploration  Operating Company  Limited, an  English
limited liability  company ( BP ) entered  into  that Amended  Agreement dated
March 30, 1995, as amended, supplemented and novated by the Novation Agreement
dated  July 10, 1996 among Britoil, BP  and Britoil (Beta) Limited, an English
limited liability company ( Britoil (Beta) ) (the  Amended Agreement ); and 

      3.    Charterer has assumed all of the rights, duties and obligations of
Britoil   (Beta) to the  Amended Agreement pursuant to  the Novation Agreement
dated August 30, 1996 among Britoil, Britoil (Beta) and Charterer  (the  Donan
Charter Agreement ); and


      4.    Owner bareboat chartered  the Vessel to Charterer pursuant  to the
Bareboat Charter Agreement between  Charterer and the Owner, dated  August 30,
1996 (the   Original  Bareboat Charter ),  in  order  to permit  Charterer  to
operate the  vessel and  to fulfill  its obligations  under the  Donan Charter
Agreement; and 

      5.    Owner,   Charterer  and  Nissho   Iwai  Europe   PLC,  an  English
corporation  (the  "Lender")  entered  into  the  Loan  Agreement  (the   Loan
Agreement ) dated as of December 14, 1996 whereby Lender agreed to  lend Owner
certain sums (the  Loans ) to be secured by the Vessel and all rights of Owner
therein; and

      6.    Owner and Charterer  have agreed  to amend  the Original  Bareboat
Charter in  order to allow  Charterer and Owner  to perform their  obligations
under the Loan Agreement (the Original Bareboat Charter, as amended hereby, is
hereinafter referred to as the  Bareboat Charter Agreement ).  

            NOW  THEREFORE,  in consideration  of the  mutual  promises herein
contained and for other valuable consideration, the receipt and sufficiency of
which  are hereby  acknowledged, the  parties hereto  agree that  the Bareboat
Charter Agreement shall be and hereby is amended as follows:  

            Section 1.   Definitions.  Capitalized  terms used herein  and not
otherwise  defined herein  shall have the  meaning set  forth in  the Original
Bareboat Charter.  

            Section  2.   Amendments to  the Original  Bareboat Charter.   The
Original Bareboat  Charter is  hereby amended as  follows effective as  of the
date hereof:  

      1.    Section 4. Charter Hire of the Original Bareboat Charter is hereby
amended by deleting  such section in  its entirety and  replacing it with  the
following:

                               4.  CHARTER HIRE

      A.    AMOUNT

            The  Charter Hire  payable  pursuant to  this  Agreement, for  any
            period, shall be determined on a monthly basis by subtracting from
            all revenues earned by Charterer in  connection with the ownership
            or  operation  of  the  Vessel  during  such  period,  the sum  of
            Predetermined  Expenses  during  such  period.       Predetermined
            Expenses  for  any  period  shall consist  in  their  entirety  of
            UK 18,209 per day for operating expenses during such period.    If
            the  results of  the  proceeding  subtraction  are  positive,  the
            positive  amount so  determined shall be  Charter Hire  payable by
            Charterer  to Owner in accordance  with Article 4B  below.  If the
            results of  the proceeding subtraction are  negative, the negative
            amount so determined  shall be carried over to the next period and
            netted with the revenues from such future  period.  Charterer will
            be reimbursed  for Dry Docking  Expenses as  provided in the  Loan
            Agreement and the Collateral Assignment.

      B.    PAYMENT

            Charterer  and Owner  shall cause  the charterer  under the  Donan
            Charter  Agreement  to  make  all   payments  under  such  charter
            agreement directly to the Lockbox  Account (as defined in the Loan
            Agreement) so long as the Loan Agreement is in effect.  The amount
            of Predetermined Expenses shall be disbursed to Charterer from the
            Lockbox  Account in  accordance with  the terms of  the Collateral
            Assignment (as defined in the Loan Agreement).

      2.    Sections  (A) and  (B) of  Exhibit   C  to  the Original  Bareboat
Charter are hereby deleted in their entirety. 

      3.    Section 9.  Owner Restrictions,  Part B, of the Original  Bareboat
Charter is hereby amended by deleting Part B, in its entirety and replacing it
with the following:

            B.  Owner  agrees  that it  shall  not  further mortgage  or
      otherwise encumber  the Vessel at any time during the term hereof,
      except as contemplated in the Loan Agreement.

      4.    The Original  Bareboat Charter  is  hereby amended  by adding  the
following new subsection E. to Section 21:

            E.  All sums payable by Charterer hereunder shall  be paid free of
      and without any rights of counterclaim or set  off and without deducting
      or withholding on any ground whatsoever.

      5.    The  Original Bareboat  Charter  is hereby  amended by  adding the
following new Section 24. Loan Agreement Controlling:

                        24.  LOAN AGREEMENT CONTROLLING

      To  the extent that any provision of  this Agreement is in conflict with
      any  provision of the Loan Agreement,  the Loan Agreement shall control.
      Nothing herein is intended to prevent the parties hereto from performing
      their obligations, duties and covenants under the Loan Agreement.

            Section 3.     Consents.   Charterer  hereby  consents to  Owner s
mortgage, sale  and  transfer of  the  Vessel and  Owner s  assignment of  the
Bareboat Charter Agreement, all as contemplated in the Transaction Documents.


            Section 4.    Original Contract Remains Effective.  Except for the
amendments to the Original Bareboat Charter set forth in Section 2 hereof, the
Original Bareboat Charter remains in full force and effect.


            IN WITNESS WHEREOF, the parties have executed this Amendment as of
the date first above written.

                                    READING & BATES (U.K.) LIMITED


                                    By:                                       

                                    Name:                                     
                                    Title:                                    


                                    TRB HOLDING CORPORATION


                                    By:                                       
                                    Name:                                     

                                    Title:                                    


                                                               Exhibit 10.165

                             FIRST NAVAL MORTGAGE


            The  First   Naval  Mortgage   (this   Mortgage ),   made  as   of
December 14, 1996,  by TRB  HOLDING CORPORATION,  a Delaware corporation  (the
 Mortgagor ),   whose  address   is   901 Threadneedle,  Suite 200,   Houston,
Texas 77079, to NISSHO IWAI EUROPE PLC, an  English corporation, whose address
is  Bastion House,  140 London  Wall, London,  EC2Y  SJT, United  Kingdom (the
 Lender );

                                   WHEREAS:
            1.    Mortgagor  is the  sole owner of  the whole  of that certain
vessel known as  Seillean , Gross Register Tons (GRT): 50,928.00; Net Register
Tons: 15,278.00, Length: 236.47 meters, Width: 37 meters, Depth: 19.80 meters,
Permanent Navigation  Patent No.  23272-96, Radio  Call Letters:  3FPF6,   and
Registration  No.  25519-PEXT, and  with the  home  port of  Panama  City, the
Republic of Panama (the  Vessel ); and

            2.    Britoil  PLC,  a company  organized  under the  laws  of the
United  Kingdom   ( Britoil ),  for  itself   and  on  behalf  of   the  Donan
Participants,  as  defined  therein,  and  BP  Exploration  Operating  Company
Limited, an  English limited  liability  company ( BP ),  entered into    that
Amended Agreement dated March  30, 1995, as amended, supplemented  and novated
by the Novation Agreement  dated July 10, 1996  among Britoil, BP and  Britoil
(Beta) Limited,  an English limited liability company  ( Britoil (Beta) ) (the
 Amended Agreement ); and 

            3.    Reading & Bates (U.K.) Limited, an English limited liability
company  (the   Charterer ),  has  assumed  all  of  the  rights,  duties  and
obligations  of Britoil    (Beta) to  the  Amended Agreement  pursuant  to the
Novation  Agreement dated August  30, 1996  among Britoil, Britoil  (Beta) and
Charterer (the  Donan Charter Agreement ); and

            4.    Reading & Bates Development  Co. ( RBDC ) bareboat chartered
the Vessel to Charterer pursuant to the Bareboat Charter between Charterer and
RBDC,  dated August  30, 1996  (the  Bareboat  Charter ), in  order to  permit
Charterer to operate the vessel and to fulfill its obligations under the Donan
Charter Agreement; and 

            5.    Mortgagor,  Charterer  and  Lender  entered  into  the  Loan
Agreement  (the  Loan Agreement )  dated as  of December 14, 1996  whereby the
Lender agreed to lend the  Mortgagor certain sums (the  Loans ) to  be secured
by the  Vessel and all rights of  the Mortgagor therein, a copy  of which Loan
Agreement is  attached hereto and made a part  hereof, it has been also agreed
by the parties  hereto that said Agreement will be  deposited at the pertinent
protocol of the corresponding Notarial Instrument whereby this First Preferred
Ship Mortgage  is protocoloized before the  Notary Eleventh of the  Circuit of
the City  of Panama,  Republic of  Panama consequently,  and in  compliance of
contents of  Article 1515 of the  Code of Commerce of the  Republic of Panama,
the principal amount secured by this mortgage is THIRTY-EIGHT MILLION AMERICAN
STATES  DOLLARS  (US$38,000,000.00).    In  addition,  this  Mortgage  secures
interest on the principal  amount and all obligations relating  thereto as the
Mortgagor  may be obligated to pay or  perform under the covenants, terms, and
conditions in the  Promissory Note, the Loan Agreement,  this Mortgage and the
documents executed in connection therewith.  The maturity date of the mortgage
which includes payment  of principal and  interest is January  15, 2002.   The
corresponding  interest  rate  is  calculated in  accordance  with  Exhibit  A
attached  hereto and made a part hereof.   For all legal purposes, the text of
the Loan Agreement hereby referred to will constitute the final and definitive
guide for determining the exact amount of capital and interests secured by the
present mortgage; and

            6.    Pursuant to the Loan  Agreement, the Mortgagor executed  and
delivered to  the Lender  its Promissory  Note (the   Promissory Note )  dated
December 14, 1996, a copy of which is attached hereto and  made a part hereof,
in the original principal amount of Thirty-Eight Million United States Dollars
(U.S.  $38,000,000.00).  Maturity  dates on which capital  and interest of the
mortgage must be paid as well as interest  rate agreed to are those stipulated
in the referred Promissory Note; and

            7.    As  a condition  precedent to the  Lender entering  into the
Loan Agreement, the  Lender has required that Mortgagor  executes and delivers
this Mortgage  in order  to secure  payment and performance  of the  principal
amount  of the  Promissory  Note plus  interest  thereon  and all  obligations
relating thereto as the Mortgagor may be obligated to pay or perform under the
covenants, terms, and conditions in  the Promissory Note, the Loan  Agreement,
this   Mortgage   and  the   documents   executed   in  connection   therewith
(collectively, the  Obligations ); and

            8.    Charterer will derive substantial benefit from the Mortgagor
obtaining the Loans and charterer s  fulfillment of its obligations under  the
Donan Charter Agreement.

            NOW, THEREFORE, THIS MORTGAGE WITNESSETH:

            That  in  consideration of  the  premises and  of  other good  and
valuable  considerations, the  receipt  of which  is  hereby acknowledged,  to
secure and guarantee  the payment on demand of   the Obligations the Mortgagor
hereby executes  and  constitutes  a  first and  absolute  naval  mortgage  in
accordance with the provisions of  Chapter V, Title IV of Book II  of the Code
of  Commerce,  and the  pertinent  provisions  of  the  Civil Code  and  other
legislation of the  Republic of Panama, upon the Vessel,  including all masts,
boilers,   cables,  engines,  machinery,  bowsprits,  sails,  rigging,  boats,
anchors, chains, tackle, apparel, furniture, fittings, tools, pumps, equipment
and  supplies,  and all  other  appurtenances and  accessories  and additions,
improvements and replacements now  or hereafter belonging thereto, whether  or
not removed  therefrom, property  of  the shipowner,  of Panamanian  flag  and
registry; 

            TO  HAVE AND TO  HOLD all and singular  the above described Vessel
unto the Lender, its successors and assigns, forever;

            PROVIDED,  HOWEVER, that if  Mortgagor, its  successors or assigns
shall  perform,  discharge  and  observe  all  and  singular  the  terms,  the
Obligations  and the other covenants and agreements herein, then this Mortgage
shall cease, otherwise to remain in full force and affect.

            The  Mortgagor  agrees  to  pay and  to  perform  and  observe the
Obligations in accordance  with their  terms and  to hold  the Vessel  subject
thereto.

                                  ARTICLE I.

                     Particular Covenants of the Mortgagor

            The Mortgagor covenants and agrees as follows: 
            1.    Mortgagor is  and shall continue to  be entitled to  own the
Vessel  out of  the home  port of Panama  City, the  Republic of  Panama.  All
action necessary for  the execution, delivery and  validity hereof and of  the
Promissory Note and the Loan Agreement  has been duly taken; and the Mortgagor
agrees to  faithfully comply  with the  provisions hereof  and thereof  in all
material  respects.  Mortgagor is duly organized  and is and shall continue in
good standing under the laws of the Delaware and authorized to do business and
in good standing.

            2.    Mortgagor lawfully owns and  possesses the Vessel free  from
all liens  and encumbrances whatsoever (other than  this Mortgage and the lien
of Donan  Charter Agreement), except  those of the Mortgagor  and as otherwise
may hereinbelow  be  specified and  shall  warrant  and defend  title  to  and
possession of all and every part thereof for the benefit of the Lender against
all persons  whomever.  The Mortgagor shall not set  up against the  Lender or
any assignee of this Mortgage any claim of the Mortgagor against the Lender or
assignee under any past or future transaction.

            3.    INTENTIONALLY DELETED

            4.    Mortgagor  shall comply  with and  not cause  or  permit the
Vessel  to  be operated  contrary  to any  provisions  of the  laws, treaties,
conventions, rules,  regulations and  orders of  the Republic  of Panama,  the
United States and  any other jurisdiction wherein  operated, except where  the
failure to so comply might reasonably  be expected to have a material  adverse
effect  on the Vessel  (or the Mortgagor s  financial condition, prospects, or
business).  Mortgagor shall do  everything necessary to establish and maintain
this Mortgage as a First Preferred Mortgage on the Vessel.

            5.    Neither  the Mortgagor, Agent,  Master nor  any charterer of
the Vessel has or shall have any right, power or authority to create, incur or
permit  to be placed  or imposed on  the Vessel or  any part thereof  any lien
whatsoever other than  to the Lender or  for crew s wages or salvage  or other
Permitted Liens (as defined in the Loan Agreement).

            6.    A proper certified copy of this  Mortgage and any supplement
thereto  shall be  carried with the  Vessel s papers  on board the  Vessel and
shall be exhibited, on demand,  to any person having business with  the Vessel
or to any representative of the Lender, and  a notice in plain writing of such
size that the paragraph  of reading matter shall  cover a space not less  than
six inches  high nor  less than  nine inches  wide shall  be  placed and  kept
prominently displayed  in  the pilot  house, in  the chart  room,  and in  the
master s  cabin of  the  Vessel.   Such  notice  shall read  substantially  as
follows:

                              NOTICE OF MORTGAGE 

             This vessel is owned by TRB HOLDING CORPORATION and is subject to
a First Preferred  Mortgage, dated December 14, 1996  in favor of  NISSHO IWAI
EUROPE PLC.  Under the term of the First Preferred Mortgage neither the owner,
any  charterer, the master of the vessel, nor  any other person shall have the
right, power or authority to create, incur, or permit to be placed or  imposed
on the vessel any lien whatsoever, other than for crew s wages or salvage. 
            7.    Mortgagor shall  pay and discharge, or cause  to be paid and
discharged, when due and  payable, from time to time, all  taxes, assessments,
government  charges, fines  and penalties  lawfully imposed  on the  Vessel in
accordance  with the Loan  Agreement.  If  a libel shall  be filed against the
Vessel,  or if  the Vessel  shall be  levied  upon or  taken into  custody, or
detained by any  proceeding in any court or tribunal, or by any government, of
any other authority,  Mortgagor, within  15 days thereafter,  shall cause  the
Vessel to be  released and any lien  thereon, other than this  Mortgage, to be
discharged.  In the event the Vessel is levied upon, or taken into custody, or
detained by  any authority  whatsoever, Mortgagor  agrees forthwith  to notify
Lender, by telegram, confirmed by letter, at its office.

            8.    Lender shall  have  the right  of  any time,  on  reasonable
notice  and  without  unreasonable  disruption  and  subject  to  any required
governmental approvals or  approvals of Britoil or other client  for which the
Vessel is  operating,  to  inspect  or  survey the  Vessel  to  ascertain  her
condition and to satisfy itself that the Vessel is being properly repaired and
maintained,  and Mortgagor  shall cause to  be made all  such repairs, without
expense  to Lender,  as such  inspection or  survey may  show to  be required.
Mortgagor shall also permit Lender to inspect the Vessel s logs and to examine
Mortgagor s accounts and records  relating to the Vessel, whenever  requested,
on reasonable notice, and shall furnish Lender with full information regarding
any casualty or other accident or damage to the Vessel involving  an amount in
excess of U.S. $ 500,0000.   Mortgagor shall certify quarterly and,  if Lender
requests, monthly, that all wages and other claims whatsoever which might have
given rise to a lien upon the Vessel have been paid.

            9.    Mortgager  shall not sell, transfer, mortgage or charter the
Vessel  in any  manner without  the written  consent of  Lender first  had and
obtained, and any such written consent to any such sale, mortgage, transfer or
charter, except as permitted  under the Loan  Agreement.  Any sale,  mortgage,
transfer or charter of the Vessel  shall be subject to the provisions of  this
Mortgage and the lien it creates.  Mortgager covenants that it shall not merge
or  consolidate with any  other firm  or corporation,  or dissolve,  except as
permitted under the Loan Agreement.

            10.   So long  as this Mortgage  is outstanding, the  Vessel shall
remain documented under the laws of the Republic of Panama.  In the event this
Mortgage or  any provision  thereof shall  be deemed invalid,  in whole  or in
part, by  reason of any present  or future law or  governmental regulation, or
any decision of any authoritative court, or, if the documents at any time held
by Lender be deemed by  Lender, for any reason, insufficient to  carry out the
true  intent and spirit of  this Mortgage, then, from  time to time, Mortgagor
shall  execute  and  deliver,  on  its  own  behalf  such  other  and  further
instruments,  documents or  assurances, as  in the  opinion of  Lender may  be
required,  to more  effectively  subject  the Vessel  to  the  payment of  the
principal sum of the  mortgage debt, together with  interest thereon, and  the
performance of the terms and provisions of this Mortgage and to effectuate any
sale of the Vessel provided for in the event of default under this Mortgage as
more fully described below.

                                  ARTICLE II
                                    Default

            1.    In any one  or more of the  following events, herein  termed
 events of default :

            The occurrence of an Event of Default under the Loan Agreement, or
in the  due and punctual performance of any provision  of Sections  4, 5, 6, 8
and 10  of Article I  hereof, or  an attempt  to violate  Sections 4 or  10 of
Article I  hereof,  or  default  continuing   for  thirty  (30)  days  in  the
performance  of  any  other  covenant herein,  then  during  the  continuation
thereof, Lender may:

            (a)   Declare all the then  unpaid indebtedness hereby secured  to
be due and  payable immediately except that no declaration  shall be necessary
in  the  event  of  either  Mortgager  being  adjudicatedly  bankrupt  or  the
substantial equivalent  under whatever  local proceedings  may be  applicable,
becoming insolvent, or admitting  in writing its inability to pay its debts as
they fall  due, having a receiver or trustee appointed of or in respect of its
property or business or  any substantial part thereof or  making an assignment
of creditors;

            (b)   Recover judgment  for, and  collect out of  any property  of
Mortgagor,  any amount  hereby  or otherwise  due hereunder;  and  collect all
earned charter hire and  freight monies relating to services performed  by the
Vessel,  Mortgagor hereby  assigning to  Lender such  earned charter  hire and
freight monies then owing;

            (c)   Retake the Vessel without legal process at any time wherever
the same may be, and, without being  responsible for loss or damage, hold  and
in Lender s,  Charterer s  or   Mortgagor s name  lease,  charter, operate  or
otherwise  use the Vessel for such  time and on such terms  as Lender may deem
advisable, being accountable  for net profits, if  any, and with the  right to
dock  the Vessel  free  of charge  at  Mortgagor s  premises or  elsewhere  at
Mortgagor s expense; or  sell the Vessel, free from any  claim by Mortgagor of
any nature whatsoever, in the manner provided by law; to  the extent permitted
by law, such sale may be public or private, without notice, without having the
Vessel present, and Lender may become the purchase; 

            (d)   Exercise all  of the rights and remedies  in foreclosure and
otherwise given to  the mortgagees by the  provisions of the law  of Panama or
any other jurisdiction where the Vessel may be found;

            (e)   Bring  suit  at law,  in equity  or in  admiralty as  may be
advised  to  recover the  judgment  for  the indebtedness  hereby  secured and
collected  the same  out  of any  and all  property of  the  Mortgagor whether
covered by this Mortgage or otherwise; 

            (f)   Exercise any other right or  remedy provided for in the Loan
Agreement, at law or in equity.

            For  such  purpose Lender  and its  agents are  hereby irrevocably
appointed the  true and lawful  attorneys of Mortgagor  in the name  and stead
either Mortgager to make all necessary transfers of the Vessel thus sold.

            2.    In  the event that the Vessel  shall be arrested or detained
by  any officer  of any  court  or by  any other  authority,  Mortgagor hereby
authorize Lender, its officers, representatives and appointees, in the name of
Charterer, Mortgagor or  Lender, to receive or to take possession thereof, and
to defend any action and discharge any lien.

            3.    Each and every power or  remedy herein given to Lender shall
be cumulative,  and in  addition to  all powers or  remedies now  or hereafter
existing in admiralty,  in equity, at law or by statute,  and may be exercised
as often as may be deemed expedient by Lender.  No delay or omission by Lender
shall impair any right,  power or remedy, and  no waiver of any default  shall
waive any  other default.   In  any suit  Lender shall  be entitled  to obtain
appointment of  a receiver of the  Vessel and the earnings  thereof, who shall
have full  rights and powers to  use and operate  the Vessel, and to  obtain a
decree ordering and directing the sale and disposition thereof.

            4.    The  net proceeds  of any  judicial or  other sale,  and any
lease, charter, management,  operations or other use of  the Vessel by Lender,
of  any claim  for damages,  of any  judgment, and  any insurance  received by
Lender  (except to  the extent  paid  to Mortgagor  or applied  in payment  of
repairs or otherwise for Mortgagor s benefit) shall be applied as follows:

            FIRST:   To the  payment of all  reasonable attorneys  fees, court
costs, and any  other expenses, losses, charges, damages  incurred or advances
made  by Lender  in the  protection  of its  rights or  caused by  Mortgagor s
default hereunder or under the note secured hereby, with interest on  all such
amounts  at the Overdue Interest Rate (as  defined in the Loan Agreement); and
to provide adequate indemnity  against any liens for which  priority over this
Mortgage is claimed;

            SECOND:  To the  payment of all interest,  to date of payment,  on
the Promissory Note and  any or all other sums  secured hereby, and as to  any
balance  of  such  proceeds,  to  the  payment  next  of  any  or all  matured
installments of principal in the inverse order of their maturity.

            Lender shall be entitled to collect any deficiency from Mortgagor.
Mortgagor shall be entitled to any surplus.

            5.    All advances and expenditures which Lender in its discretion
may make for  repairs, insurance, payment of liens or other claims, defense of
suits, or for any other  purpose whatsoever related hereto or to  the note and
all damages sustained by Lender because of defaults, shall be repaid Mortgagor
on demand the Overdue Interest Rate and until so paid shall be a debt due from
Mortgagor to Lender secured by the lien hereof.  Lender shall not be obligated
to  make any  such  advances or  expenditures, nor  shall  the making  thereof
relieve Mortgagor of any obligation or default with respect thereto.

                                  ARTICLE III

                           Possession Until Default

            Until one or more of the events of default hereinbefore described,
Mortgagor  shall be  permitted  to retain  actual  possession and  use of  the
Vessel.

                                  ARTICLE IV

                               Sundry Provisions

            1.    All  notices to  the parties  hereto shall  be given  at the
addresses and in the manner set forth in Section 9.02 of the Loan Agreement.  

            2.    All covenants and  agreements of Mortgagor herein  contained
shall  bind Mortgagor,  its  successors and  assigns, and  shall inure  to the
benefit  of Lender and  its successors and assigns.   Following any assignment
hereof,  any reference  herein to   Lender  shall  be deemed  to refer  to the
assignee.

            3.    If  any provision  of this  Mortgage be  held to  be invalid
under the provisions  of any applicable law,  such invalid provision  shall be
deemed deleted from this Mortgage but  the validity of the Mortgage shall  not
otherwise be affected.

            4.    Mortgagor and Lender confer a Special Power of Attorney with
right of substitution upon  Messrs. ICAZA, GONZALEZ-RUIZ & ALEMAN, a  law firm
domiciled  in the  City of Panama,  Republic of  Panama to  take all necessary
steps to record this instrument of  mortgage in the Public Registry Office  of
the  Republic  of  Panama,  and  do whatsoever  said  law  firm  may  consider
appropriate for the fulfillment of any  and all laws and regulations governing
the ship mortgage in the Republic of Panama.

            IN  WITNESS WHEREOF,  on the  day  and year  first above  written,
Mortgagor has caused this Mortgage to be duly executed in its name.

                                    TRB HOLDING CORPORATION


                                    By:                                       
                                    Name:                                     
                                    Title:                                    





                             NOTARIAL CERTIFICATE

            I, the undersigned, NOTARY  PUBLIC, duly authorized, admitted  and
sworn, residing and practicing in Houston, Harris County, Texas, U.S.A.,

DO HEREBY CERTIFY THAT:

      1.    ___________________________________,  as _____________________  of
the  above  mentioned  corporation  did sign  and  deliver  the  above written
mortgage  in  my  presence  and that  the  signature  appearing  above is  his
authentic signature.

      2.    Sufficient  proof  has   been  produced  to   me  that  the   said
_________________________ has  power to execute said mortgage on behalf of the
corporation.      I   further   certify    that   the   above   signature   of
____________________________ was set thereon in my presence and is, therefore,
authentic.

            IN  TESTIMONY  WHEREOF, I  have  hereunto subscribed  my  name and
affixed my seal of  office this _________ day of __________ in the year of Our
Lord One thousand nine hundred ninety-seven.


                                                                              
                                          Notary Public


                            ACCEPTANCE OF MORTGAGE

            I,  the undersigned,  as ________________________  of NISSHO  IWAI
EUROPE, PLC., referred to  as the  Lender  in  the above First Preferred  Ship
Mortgage on  the m.v.  Seillean , hereby  ACCEPTS for all  legal purposes said
First Preferred Ship Mortgage on behalf of the  Lender .

Date:                               NISSHO IWAI EUROPE PLC.


                                    By:                                       
                                    Name:                                     
                                    Title:                                    




                NOTARIAL CERTIFICATE OF ACCEPTANCE OF MORTGAGE

            I, the undersigned, NOTARY  PUBLIC, duly authorized, admitted  and
sworn, residing and practicing in Houston, Harris County, Texas, U.S.A.,

DO HEREBY CERTIFY THAT:

      1.    ___________________________________,  as _____________________  of
the above mentioned corporation did sign and accept the above written mortgage
in  my presence  and  that  the signature  appearing  above is  his  authentic
signature.

      2.    Sufficient  proof  has   been  produced  to   me  that  the   said
_________________________ has  power to execute said mortgage on behalf of the
corporation.      I   further   certify    that   the   above   signature   of
____________________________ was set thereon in my presence and is, therefore,
authentic.

            IN  TESTIMONY  WHEREOF, I  have  hereunto subscribed  my  name and
affixed my seal of  office this _________ day of __________ in the year of Our
Lord One thousand nine hundred ninety-seven.


                                                                              
                                          Notary Public





                                   Exhibit A

                       Payments; Calculation of Interest

Payments:

The Mortgagor shall repay the Loan on each Repayment Date. 

Calculation of Interest:

            (a)   The Mortgagor shall pay to the Lender interest on the unpaid
principal amount of the Loan for the period commencing on the date the Loan is
made to but excluding the date the Loan  shall be paid in full, at a rate  per
annum equal to the lesser of (i) LIBOR plus the then Applicable Margin or (ii)
the Maximum Rate.

            (b)   Notwithstanding any of the foregoing, the Mortgagor will pay
to  the Lender interest  at a rate  per annum equal  to the lesser  of (i) the
applicable Overdue Interest Rate or (ii) the Maximum Rate on any principal of,
or interest on,  the Loan and  on any  other amount payable  by the  Mortgagor
under the Loan Agreement to  or for the account of the Lender, which shall not
be paid  in full  when due  (whether at  stated maturity,  by acceleration  or
otherwise and whether  the failure to make such  payment constitutes a default
or event  of default  under the  Loan Agreement, regardless  of the  giving or
receipt of notice or the lapse of any applicable cure period), for the  period
commencing on the due date thereof until the same is paid in full.

            (c)   Interest shall  be computed on  the basis  of a year  of 360
days for actual  days elapsed (including the first day  but excluding the last
day) occurring  in the period for which such  amounts are payable, unless such
calculation would  exceed the  Maximum Rate, in  which case interest  shall be
calculated  on the per annum basis  of a year of 365  or 366 days, as the case
may be.

             Applicable Margin  means 2% per annum. 

             Interest Period  means the period commencing on the date that  an
advance of the Loan is (a) made or (b) continued, and ending on the  fifteenth
(15th) calendar  day in  the next  month thereafter,  provided that  the first
interest period shall end  on February 15, 1997.  If such fifteenth (15th) day
is not  a business  day, the  Interest Period  shall be  extended to  the next
succeeding business day.

             LIBOR   means,  for each  Interest  Period,  the arithmetic  mean
(rounded upward, if necessary, to the nearest whole multiple of 1/16 of 1%) of
the one-month London  Inter-Bank Offered Rates  for deposits in United  States
Dollars  as quoted  on Reuters  monitor page   LIBO  at  or about  11:00 a.m.,
London time  on the  date that is  two (2) London  business days prior  to the
first day of such Interest Period.  If only one such rate appears, LIBOR shall
be such  rate.   If no  such rates appear,  LIBOR shall  be the  rate (rounded
upwards if necessary to the nearest one sixteenth of one per cent) in  respect
of any Interest Period determined  by the Lender on the basis of  the rates at
which deposits in Dollars  are offered by the reference bank at or about 11:00
a.m., London time, on  the day that is two  (2) London business days  prior to
the first day of such Interest Period or such other relevant period or at such
date, to prime banks  in London interbank market  for one (1) month  period on
that Interest Payment Date and in amount equal to the outstanding Loan balance
(after giving effect to any advance) or such other relevant amount outstanding
as of the first day of such Interest Period or such other relevant period.

             Maximum Rate   means the  maximum non-usurious  rate of  interest
permitted by applicable law.

             Overdue  Interest Rate  means, in respect of any principal of, or
interest on, the  Loan or any other amount payable by  the Mortgagor under any
loan  document which  is not  paid when  due (whether  at stated  maturity, by
acceleration  or otherwise), a rate per  annum during the period commencing on
the  due date until such amount  is paid in full equal to  the sum of LIBOR in
effect for such period plus 5% per annum.

             Repayment Date  means the last day of each Interest Period, until
an event of default occurs under the Loan Agreement.



                                                                Exhibit 10.166

               COLLATERAL ASSIGNMENT OF DEPOSIT ACCOUNT, PLEDGE
                            AND SECURITY AGREEMENT


            This COLLATERAL ASSIGNMENT OF DEPOSIT ACCOUNT, PLEDGE AND SECURITY
AGREEMENT  (this  Agreement )  dated as  of December  14, 1996 is  between TRB
HOLDING CORPORATION, a Delaware corporation  (the  Grantor ), and NISSHO  IWAI
EUROPE PLC, an English  public liability company (the  Secured  Party ), SANWA
BANK TRUST COMPANY OF NEW YORK  (the  Depositary ), and READING & BATES (U.K.)
LIMITED, an English limited liability company( RB (U.K.) ).


                                   RECITALS

            WHEREAS,  the Secured Party has made loans to the Grantor pursuant
to  the Loan  Agreement dated as  of even  date herewith among  RB (U.K.), the
Grantor and the Secured Party (such Agreement, as it may be amended, restated,
supplemented, extended, renewed or otherwise modified from time to time, being
the  Loan Agreement );

            WHEREAS, it is a  condition precedent to the effectiveness  of the
Loan  Agreement  that  the Grantor  shall  have  executed  and delivered  this
Agreement,

            NOW, THEREFORE, in consideration of the premises and of the mutual
covenants  contained herein and for other good and valuable consideration, the
receipt  and sufficiency  of which  are hereby acknowledged,  and in  order to
induce  the Secured  Party to  make the  loans under  the Loan  Agreement, the
Grantor, the Depositary and the Secured Party hereby agree as follows:

            SECTION 1.  Defined Terms and Related Matters.

            (a)   The words   hereof ,  herein   and  hereunder  and  words of
      similar import  when  used  in  this  Agreement   shall  refer  to  this
      Agreement  as a  whole  and  not to  any  particular  provision of  this
      Agreement.

            (b)   Unless otherwise  defined herein  or in the  Loan Agreement,
      the terms defined in Article 9 of the Uniform Commercial Code as enacted
      in the State of New York (the  UCC ) are used herein as therein defined.

            (c)   All  capitalized  terms  used  herein,  unless  specifically
      otherwise defined, shall have the  respective meanings ascribed to  them
      in the Loan Agreement.  

            SECTION 2.  Grant of Security Interests.   Each of the Grantor and
RB (U.K.)  hereby pledges and assigns  as collateral to the  Secured Party and
grants to the Secured Party a security interest in all of its right, title and
interest  in and to the  following collateral, whether  now owned or hereafter
arising or acquired (the  Collateral ):

            (i)   that certain deposit account number 618727 in the name 
      of  SBT-TRB  Holding Corp. NIEP Escrow Account   maintained at the
      Depositary and which pursuant to Section 5(a) herein, is under the
      exclusive  direction, dominion  and control  of the  Secured Party
      (the   Dollar  Collateral  Account ),  and  all  certificates  and
      instruments, if any, from time to time representing  or evidencing
      the Dollar  Collateral Account  and all amounts  deposited in  the
      Dollar  Collateral Account from time to time and all other deposit
      accounts from time  to time maintained at the Depositary or at any
      other institution, in connection with the Loan Agreement; 

            (ii)  that certain  deposit account  number   618727 in  the
      name of  SBT-TRB Holding Corp.  NIEP Escrow Account  maintained at
      the Depositary and which pursuant to Section 5(a) herein, is under
      the exclusive direction, dominion and control of the Secured Party
      (the  Sterling  Collateral Account   and together with  the Dollar
      Collateral   Account,  the    Collateral   Accounts ),   and   all
      certificates  and   instruments,  if   any,  from  time   to  time
      representing or evidencing the Sterling Collateral Account and all
      amounts deposited in the Sterling Collateral Account from time  to
      time and all other  deposit accounts from time to  time maintained
      at  the Depositary or at any other institution, in connection with
      the Loan Agreement; and 

            (iii) that certain deposit account number 619121 in the name
      of   SBT-TRB-NIEP-Dry Docking  Expense Account  maintained  at the
      Depositary in sterling  pounds and which pursuant  to Section 5(a)
      herein, is under the exclusive direction, dominion  and control of
      the  Secured Party  (the  Dry Docking  Expense Account ),  and all
      certificates  and   instruments,  if   any,  from  time   to  time
      representing or evidencing the Dry Docking Expense Account and all
      amounts  deposited in the Dry Docking Expense Account from time to
      time and all other  deposit accounts from time to  time maintained
      at  the Depositary or at any other institution, in connection with
      the Loan Agreement; and

            (iv)  all  notes,   certificates   of  deposit   and   other
      instruments and  amounts from time to time  hereafter delivered to
      or  otherwise possessed by  the Secured Party for  or on behalf of
      the Grantor  in substitution for or  in addition to any  or all of
      the then existing Collateral; and 

            (v)   all  interest, dividends, cash,  instruments and other
      property, if  any,  from  time to  time  received,  receivable  or
      otherwise distributed in respect of or in exchange for  any or all
      of the then existing Collateral; and 

            (vi)  to the extent not  covered by clauses (i) through  (v)
      above, all proceeds of any or all of the foregoing Collateral.  

            SECTION 3.  Security for Obligations.   This Agreement secures the
prompt and  complete (a) payment  of all  obligations  of the  Grantor and  RB
(U.K.) now  or hereafter existing under  the Note, the Loan  Agreement and the
other Loan Documents, as  each may be  modified, amended, extended or  renewed
from time  to time; and (b) performance  and observance by the  Grantor and RB
(U.K.) of all  covenants and  conditions contained in  the Loan Documents,  as
each  may  be  modified,  amended,  extended or  renewed  from  time  to  time
(including, without limitation, the covenants and conditions contained herein)
(all such  obligations, covenants  and conditions described  in the  foregoing
clauses  (a)  and (b)),  whether for  principal,  interest, fees,  expenses or
otherwise, being hereinafter collectively referred to as the  Obligations ).

            SECTION 4.  Representations and  Warranties.  Each of  the Grantor
and RB (U.K.) hereby represents and  warrants to the Secured Party (for itself
only) as follows:

            (a)   Such  Person owns the Collateral free and clear of any Liens
      thereon,  other  than  the  pledge,  assignment  and  security  interest
      hereunder. 

            (b)   Such  Person has  the legal  right to  pledge and  assign as
      collateral to the Secured Party the Collateral.

            (c)   This Agreement is effective to  create a valid and perfected
      Lien on the funds on deposit in the Collateral Accounts, the Dry Docking
      Expense  Account and the Collateral and constitutes the legal, valid and
      binding  obligation of such  Person, enforceable in  accordance with its
      terms,   except  as  the  enforceability   thereof  may  be  limited  by
      bankruptcy, insolvency, reorganization  or moratorium  or other  similar
      laws relating to the  enforcement of creditors  rights generally  and by
      general equitable principles.

            SECTION  5.  Certain  Covenants of  Grantor.    From the  date  of
execution hereof until the Obligations and all other amounts due hereunder and
under the other  Loan Documents are paid  in full and the Commitments  and all
other obligations  of the Secured  Party under the Loan  Agreement are finally
terminated:

            (a)   The Grantor will maintain  the Collateral Accounts and
      the  Dry Docking Expense Account at the Depositary and the Grantor
      agrees that  the Collateral Accounts  and the Dry  Docking Expense
      Account shall  at all times be maintained  with, and be within the
      sole dominion and control of, the Secured Party in accordance with
      the terms of this Agreement.

            (b)   All  certificates or instruments, if any, representing
      or evidencing the Collateral shall be delivered to and  held by or
      on  behalf of the  Secured Party pursuant  hereto and shall  be in
      suitable form for transfer by delivery, or shall be accompanied by
      duly executed  instruments of transfer or assignment in blank, all
      in form and substance satisfactory to the Secured Party.  Upon the
      occurrence and during  the continuance  of a Default  or Event  of
      Default, the Secured  Party shall have  the right, at any  time in
      its discretion and without  notice to the Grantor, to  transfer to
      or to  register in  the name of  the Secured  Party or any  of its
      nominees any or  all of the Collateral.   In addition, the Secured
      Party  shall have  the right at  any time upon  the occurrence and
      during  the  continuance  of a  Default  or  Event  of Default  to
      exchange  certificates or  instruments representing  or evidencing
      Collateral for  certificates or  instruments of smaller  or larger
      denominations.

            (c)   The  Grantor agrees  to take  all additional  measures
      which are reasonably necessary in the opinion of the Secured Party
      to  protect the  security interests granted  herein.   The Grantor
      further  agrees that  from  time to  time, at  the expense  of the
      Grantor, the Grantor will promptly execute and deliver all further
      instruments and documents, and take all further action that may be
      reasonably  necessary or desirable, or that  the Secured Party may
      reasonably request, in  order to perfect and protect  any security
      interests granted or purported to be granted hereby and to perfect
      any security  interests granted  hereby or  to enable  the Secured
      Party  to exercise and  enforce its rights  and remedies hereunder
      with respect to any of the Collateral.

            (d)   The Grantor will furnish to  the Secured Party and the
      Depositary  from time  to  time statements  and schedules  further
      identifying and  describing the Collateral and  such other reports
      in connection  with  the  Collateral  as  the  Secured  Party  may
      reasonably request, all in reasonable detail.

            (e)   The Grantor shall pay  prior to delinquency all taxes,
      charges, Liens and assessments against the Collateral or any  part
      thereof.

            SECTION 6.  Liens, Other Transfers and Transfer Instructions.  (a)
Except as set forth in this  Section 6, (i) none of the Grantor, RB (U.K.)  or
the Depositary  shall  sell,  assign,  or otherwise  dispose  of  any  of  the
Collateral, or withdraw or transfer any funds from the Collateral Accounts  or
the Dry Docking Expense Account or create or suffer  to exist any Lien upon or
with respect  to any of  the Collateral  and (ii) no amount  shall be paid  or
released to or for the account of, or withdrawn  by or for the account of, the
Grantor, RB (U.K.) or any other  person or entity from the Collateral Accounts
or the Dry Docking Expense Account.

            (b)   Prior to the occurrence of any Event of Default and delivery
of a notice thereof to the Depositary, the Depositary shall transfer collected
funds in the Collateral Accounts on the fifteenth (15th) day  of each calendar
month (unless such day is not a  Business Day, in which case such funds  shall
be transferred on  the next succeeding Business Day)  (the  Transfer Date ) as
follows:

            (i)   To  the   Dollar  Collateral   Account  from  the   Sterling
      Collateral Account as set  forth in the Collateral  Account Instructions
      (as  defined below) delivered to the Depositary pursuant to Section 6(d)
      for such month;

            (ii)  To the  Secured Party at its account  number 15012511 at The
      Chase  Manhattan  Bank  N.A.,  London Branch,  Woolgate  House,  Coleman
      Street, London  EC2P 2HD,  England or  such other  account of which  the
      Secured Party may  notify the Depositary in writing, in  an amount equal
      to the amount set forth in the Collateral Account Instructions delivered
      to the  Depositary pursuant to Section 6(d) for such month that shall be
      paid to the Secured Party to be applied to the Obligations;

            (iii) To RB  (U.K.) at  its account number 00750302,  account name
       Reading &  Bates (U.K.) Limited, SWIFT  number RBOS GB 2L  at the Royal
      Bank  of Scotland,  Queens  Cross  Branch,  40  Albyn  Place,  Aberdeen,
      Scotland AB1  1YN, or such other  account of which RB  (U.K.) may notify
      the Depositary  in writing (the  RB (U.K.) Account ), in an amount equal
      to the amount set forth in the Collateral Account Instructions delivered
      to the  Depositary pursuant to Section 6(d) for such month that shall be
      paid to reimburse RB (U.K.) for Operating Expenses for such month;

            (iv)  To the Dry Docking Expense Account in an amount equal to the
      amount set forth in the Collateral Account Instructions delivered to the
      Depositary pursuant to Section 6(d) to be transferred to the Dry Docking
      Expense Account for such month, to hold pending disbursement pursuant to
      Section 6(b)(vii); 

            (v)   Prior  to   NIC s  exercise  of  the   option  under  Option
      Agreement, to the Grantor at its account number 00-132-716, account name
      TRB   Holding  Corporation , ABA  number 0210  0103  3 at  Bankers Trust
      Company,  130  Liberty Street,  One Bankers  Trust  Plaza, New  York, NY
      10006;  or  such other  account  of which  the  Grantor  may notify  the
      Depositary in writing, in an amount equal to the amount set forth in the
      Collateral Account Instructions delivered  to the Depositary pursuant to
      Section  6(d) that shall be paid to  the Grantor for the Working Capital
      for such  month, provided that  such amount shall  be $0 if  the Minimum
      Payment is paid under Section 6(b)(ii) hereof;

            (vi)  Subsequent  to NIC s  exercise  of the  option under  Option
      Agreement,  to the  partnership  to be  formed  pursuant to  the  Option
      Agreement  (the  Partnership )  at  its account  number ____________  at
      ________________________________  or such  other  account  of which  the
      Partnership may notify the Depositary in writing, in an amount  equal to
      the amount set forth in the Collateral Account Instructions delivered to
      the  Depositary pursuant  to Section  6(d)  that shall  be  paid to  the
      Grantor for the Working Capital for such month; and

            (vii) To RB (U.K.) at its  account number 00-132-716, account name
       Reading &  Bates (U.K.)  Limited , ABA number  0210 0103  3 at  Bankers
      Trust Company, 130 Liberty Street, One Bankers Trust Plaza, New York, NY
      10006,  or  such  other acocunt  of  which  RB  (U.K.)  may  notify  the
      Depositary in writing; an amount equal  to the Dry Docking Expenses paid
      by  RB  (U.K.)  as set  forth  in  the  Collateral Account  Instructions
      delivered to the Depositary that shall be paid to RB (U.K.) to reimburse
      RB (U.K.) for Dry Docking Expenses.

            (c)   After  the delivery  of  a notice  to  the Grantor  and  the
Depositary  stating that  an  Event  of Default  shall  have occurred  and  be
continuing, all collected funds  in the Collateral Accounts  and the Dry  Dock
Expense  Account  shall   be  paid  to  the  Secured  Party   at  its  account
number 15012511  at The  Chase  Manhattan Bank  N.A., London  Branch, Woolgate
House,  Coleman Street,  London EC2P 2HD,  England, or  such other  account of
which the Secured Party may notify the Depositary in writing, to be applied to
the Obligations in the order and amounts as the Secured Party may direct.

            (d)   No later  than the fourth (4th) Business  Day preceding each
Transfer  Date of  each month  during  which no  Event of  Default shall  have
occurred and be continuing, the Secured Party shall deliver to the Depositary,
the Grantor  and RB  (U.K.) its signed  certificate in  the form of  Exhibit A
attached  hereto  (the  Collateral  Account  Instructions ),  with the  blanks
completed and  computed in accordance with the terms of this Agreement and the
Loan Documents, stating:

            (i)   the amount of funds in the Sterling Collateral Account to be
      converted by the Depositary to U.S. Dollars and to be transferred to the
      Dollar Collateral Account;

            (ii)  the amount of funds  to be transferred by the  Depositary on
      the  Transfer Date  from the  Dollar Collateral  Account to  the Secured
      Party to be applied to the Obligations;

            (iii) the amount of funds  to be transferred by the  Depositary on
      the Transfer Date from the  Sterling Collateral Account to RB (U.K.)  to
      be applied to Operating Expenses;

            (iv)  the amount of funds  to be transferred by the  Depositary on
      the  Transfer Date  from  the Sterling  Collateral  Account to  the  Dry
      Docking Expense Account; 

            (v)   the amount of funds  to be transferred by the  Depositary on
      the  Transfer Date from the Dollar Collateral Account to the Partnership
      as Working Capital in  accordance with the terms  of the Loan  Agreement
      and the Partnership Agreement; and

            (vi)  the amount of funds  to be transferred by the  Depositary on
      the Transfer Date from  the Dollar Collateral Account to  the Grantor to
      be applied as  Working Capital in accordance with the  terms of the Loan
      Agreement and the Partnership Agreement.

            (e)   In  the event that the Donan  Charter is no longer in effect
and no Event of Default has occurred and is continuing, the Secured Party, the
Grantor and RB (U.K.) shall  discuss and agree upon appropriate  amendments to
this Section  6 and  upon written  notice to the  Depositary delivered  by the
Secured  Party  this Section  6  shall  be  amended  in accordance  with  such
agreement.

            SECTION 7.  Secured Party Appointed Attorney-in-Fact.  (a) Each of
the  Grantor and  RB (U.K.)  hereby irrevocably  constitutes and  appoints the
Secured Party such  Person s attorney-in-fact, effective  upon and during  the
continuance of a Default or Event  of Default, with full irrevocable power and
authority  in the  place and  stead of  such Person  and in  the name  of such
Person,  the Secured  Party, or otherwise,  from time  to time  in the Secured
Party s discretion,  for the sole  purpose of carrying  out the terms  of this
Agreement and, to the extent  permitted by applicable law, to take  any action
and to  execute any document and  instrument which the Secured  Party may deem
necessary  or  advisable  to  accomplish   the  purposes  of  this  Agreement,
including, without limitation: 

            (i)   to ask, demand, collect, sue for, recover, compound, receive
      and give acquittance and receipt  for moneys due or to become  due under
      or in respect of any of the Collateral; 

            (ii)  to  receive,  endorse  and   collect  any  drafts  or  other
      instruments or documents in connection with clause (i) above; and

            (iii) to  file any  claim  or take  any  action or  institute  any
      proceeding which the Secured  Party may deem necessary or  desirable for
      the collection  of any  of the  Collateral or  otherwise to  enforce the
      rights of the Secured Party with respect to any of the Collateral.

            SECTION  8.  Secured Party May Perform.    If  the  Grantor  or RB
(U.K.)  fails to  perform, or cause  to be performed,  any agreement contained
herein the Secured Party may perform, or cause performance of, such agreement,
and  the reasonable  expenses  of the  Secured  Party incurred  in  connection
therewith shall be payable by the Grantor under Section 11(b). 

            SECTION 9.  The Secured Party s Duties.   The powers  conferred on
the  Secured  Party  hereunder  are  solely to  protect  its  interest  in the
Collateral and  shall not impose any  duty upon the Secured  Party to exercise
any such powers.   Beyond the  use of reasonable  care in  the custody of  the
Collateral, the Secured Party shall not have any responsibility  in respect of
any of the funds  on deposit with  it other than to  comply with the  specific
duties and responsibilities herein set forth.  The Secured Party shall have no
responsibility  for the genuineness or validity of  any document or other item
deposited  with it.   Except  for the  safe custody of  any Collateral  in its
possession  and the accounting for  moneys actually received  by it hereunder,
the Secured Party shall  not have any duty as  to any Collateral or as  to the
taking of any necessary steps to preserve rights against prior  parties or any
other rights pertaining to any Collateral. 

            SECTION  10.  Remedies.   If  any  Event  of  Default  shall  have
occurred and be continuing: 

            (a)   The Secured Party may exercise in respect of the Collateral,
      in  addition to  other  rights  and  remedies  provided  for  herein  or
      otherwise available  to it,  all the  rights and  remedies of  a secured
      party  on default under the UCC  (whether or not the  UCC applies to the
      affected Collateral)  and also may without demand  or notice of any kind
      to the Grantor or RB  (U.K.) (i) draw or charge against  the Collateral,
      including any  interest  which  shall have  accrued  on  the  Collateral
      Account or which shall be payable with respect thereto, all  or any part
      of  the   Obligations,  and   (ii) execute  and  deliver   such  drafts,
      withdrawals and other instruments  and take all such other action as the
      Secured  Party shall deem necessary  or appropriate in  order to realize
      upon  the Collateral, and the  Depositary is hereby  authorized to honor
      drafts drawn or withdrawals made by the Secured Party against any of the
      Collateral.

            (b)   All cash proceeds received by  the Secured Party in  respect
      of any  sale of, collection from,  or other realization upon  all or any
      part of the  Collateral may, in the discretion of  the Secured Party, be
      held by the Secured Party as collateral  for, and/or then or at any time
      thereafter applied in whole or in part by the Secured Party against, the
      Obligations in such  order as the Secured Party elects.   Any surplus of
      such cash or cash proceeds and interest accrued thereon, if any, held by
      the Secured  Party  and remaining  after  payment  in full  of  all  the
      Obligations  shall be  paid over  to the  Grantor or  to whoever  may be
      lawfully  entitled to receive  such surplus;  provided that  the Secured
      Party shall have  no obligation to invest  or otherwise pay  interest on
      any amounts held by it in connection with or pursuant to this Agreement.

            (c)   All rights and remedies  of the Secured Party herein  are in
      addition to all other rights and remedies possessed by the Secured Party
      in the  Loan Agreement, the Note, the other Loan Documents and any other
      agreement or instrument related to the Obligations.

            SECTION 11.  Indemnity, Expenses and Interest.

            (a)   To the  fullest extent permitted by applicable laws, each of
      the Grantor  and RB (U.K.) agrees to indemnify the Secured Party and its
      officers, directors, employees, agents  and attorneys in accordance with
      Section 9.04 of the Loan Agreement.

            (b)   Each of the Grantor and RB (U.K.) agrees upon demand to  pay
      to the  Secured Party  the amount  of any and  all reasonable  expenses,
      including  the fees and disbursements of its  counsel and of any experts
      and agents, which (i) the Secured Party may incur in connection with the
      modification or  amendment of this  Agreement or (ii) the  Secured Party
      may incur in  connection with (v) the  preparation, execution, delivery,
      filing, recording or administration of this  Agreement; (w) the custody,
      preservation, use or operation of, or  the sale of, collection from,  or
      other  realization  upon, any  of the  Collateral;  (x) the  exercise or
      enforcement of any of the rights of the Secured Party  hereunder; or (y)
      the failure by  the Grantor to perform or observe  any of the provisions
      hereof.

            (c)   Each of the Grantor  and RB (U.K.) agrees to pay interest on
      any expenses or other sums due hereunder that are not paid when due at a
      rate per annum equal to the lesser  of (i) the Maximum Rate or  (ii) the
      Overdue Interest Rate in effect from time to time.

            (d)   Grantor agrees  to pay  any expenses  to the Depository  for
      maintenance  of  the Collateral  Accounts  and the  Dry  Docking Expense
      Account.

            SECTION 12.  Amendments, Etc.   No  amendment  or  waiver  of  any
provision of  this Agreement  nor consent  to any departure  by Grantor  or RB
(U.K.)  herefrom, shall  be effective unless  the same  is in  accordance with
Section 9.05 of the Loan Agreement.

            SECTION 13.     Notices.   All  notices and  other  communications
provided for  herein (including, without limitation, any  modifications of, or
waivers or  consents under, this Agreement)  shall be given or  made by telex,
telegraph,  telecopy,   cable  or  other  writing   and  telexed,  telecopied,
telegraphed, cabled, delivered or sent by certified or registered mail, return
receipt  requested, to the intended  recipient at the  address specified below
its  name on the signature  pages hereof; or,  as to any party,  at such other
address as shall  be designated by such party  in a notice to the  Grantor and
the Secured Party given in accordance  with this Section.  Except as otherwise
provided  in this Agreement, all  such communications shall  be deemed to have
been  duly given  when  transmitted  by  telex  or  telecopier  (with  receipt
confirmed by  telex or telecopier), sent  by the telegraph or  cable office or
personally delivered or, in the case of a mailed notice, upon receipt, in each
case given or addressed as aforesaid. 

            SECTION 14.  Continuing Security Interest.  This Agreement creates
a continuing security interest in the Collateral and shall (a)  remain in full
force  and effect until the payment in full of Loans and all other amounts due
under the Loan Agreement and  the other Loan Documents and the  Commitment and
all  other  obligations of  the  Secured Party  under  the Loan  Agreement are
finally terminated; (b) be  binding upon Grantor, its successors  and assigns,
provided that  Grantor may not assign  any of its rights  or obligations under
this Agreement without the prior written consent of the Secured Party; and (c)
inure  to the  benefit of  and be  enforceable by  the  Secured Party  and its
permitted  successors,  transferees  and  assigns under  the  Loan  Agreement.
Without limiting the generality of the foregoing clause (c), the Secured Party
may  assign or  otherwise transfer  any of  its  respective rights  under this
Agreement to any other Person  in accordance with the terms and  provisions of
Section 9.06 of  the Loan Agreement, and  to the extent of  such assignment or
transfer  such Person shall  thereupon become vested with  all the benefits in
respect thereof  granted herein or otherwise  to the Secured Party.   Upon the
termination of  the obligations of the  Secured Party to make  loans under the
Loan Agreement and  payment in full of the Obligations,  Grantor and RB (U.K.)
shall be entitled to the return, upon its request  and at its expense, of such
of the Collateral as shall not have been sold or otherwise applied pursuant to
the terms  hereof.   Upon any  such termination of  the security  interests or
release of  Collateral, the  Secured Party will,  at the  expense of  Grantor,
execute and deliver to Grantor and RB (U.K.)  such documents as Grantor and RB
(U.K.)  shall reasonably request to  evidence the termination  of the security
interests or the release of such Collateral, as the case may be. To the extent
that the Secured Party receives any payment on account of  the Obligations, or
any proceeds of Collateral are applied  on account of the Obligations, and any
such payment or  proceeds or  any part thereof  are subsequently  invalidated,
declared  to be fraudulent or  preferential, set aside, subordinated, required
to be  repaid to a trustee, receiver  or any other person  or entity under any
debtor relief law, or recovered  from the Secured Party for any  other reason,
then,  to the extent of such payment  or proceeds received, the Obligations or
part thereof  intended to be satisfied  shall be revived and  continue in full
force and effect,  as if such payment or proceeds had not been received by the
Secured Party  and applied  on account  of the  Obligations, and the  security
interests shall continue to secure such Obligations, and all rights of Grantor
and RB (U.K.) in the Collateral shall be subject to such security interests.

            SECTION 15.  Waiver of  Marshalling.  All rights of marshalling of
assets of Grantor and RB (U.K.), including any such right with respect to  the
Collateral, are hereby waived by Grantor and RB (U.K.).  

            SECTION 16.  Limitation by Law.   All rights, remedies and  powers
provided  in  this Agreement  may be  exercised only  to  the extent  that the
exercise thereof does not violate any applicable provision of law, and all the
provisions of  this Agreement  are intended  to be  subject to all  applicable
mandatory provisions of law which may be controlling and  to be limited to the
extent  necessary so  that  they  will  not  render  this  Agreement  invalid,
unenforceable, in whole or in part, or not entitled to be recorded, registered
or filed under the provisions of any applicable law.  

            SECTION  17.  Survival  of  Representations and  Warranties.   All
representations  and warranties contained in this Agreement or made in writing
by or on behalf of Grantor and RB (U.K.) in connection herewith, shall survive
the execution  and delivery of  this Agreement until  365 or 366 days,  as the
case may be,  after the date on  which the commitment of the  Secured Party to
make the Loan under the Loan Agreement has been terminated and the Obligations
have been  paid in  full.  Any  investigation by  the Secured Party  shall not
diminish in any respect whatsoever its rights to  rely on such representations
and warranties.

            SECTION  18.  Duties of  the Depositary.   The  acceptance by  the
Depositary of  its duties  under this  Agreement is  subject to  the following
terms and conditions:

            (a)   the Depositary s sole  responsibility hereunder  shall
      be  (i) to  hold  and transfer  the  Collateral and  the  proceeds
      thereof  as the agent of the Secured  Party solely for the purpose
      of perfecting the assignment, pledge and security interest of this
      Agreement, (ii)  to give the  notices and provide  the information
      called  for  hereunder,  and  (iii) to  disburse  the  Collateral,
      including  proceeds   thereof,  as  provided  for   herein.    The
      Depositary shall  deliver an  account statement of  the Collateral
      Account to both the Grantor and RB (U.K.) and Secured Party within
      three Business Days after the end of each month.

            (b)   the Depositary  shall be protected in  acting upon any
      written notice,  request, waiver, consent, receipt  or other paper
      or document furnished to it, not  only as to its due execution and
      the validity and effectiveness  of its provisions, but also  as to
      the truth and acceptability  of any information therein contained,
      which it in good faith believes to be genuine.

            (c)   the Depositary shall  not be liable  for any error  of
      judgment, or for any  act done or step  taken or omitted by it  in
      good  faith, or for  any mistake of  fact or law,  or for anything
      which  it may  do or  refrain from  doing in  connection herewith,
      except its own gross negligence or willful misconduct.

            (d)   the  Depositary shall  have no  duties to  the Secured
      Party  except those which are  expressly set forth  herein, and it
      shall  not be  bound by  any  notice of  a claim,  or demand  with
      respect  thereto,   or   any  waiver,   modification,   amendment,
      termination  or rescission  of this  Agreement, unless  in writing
      received  by it, and, if the Depositary s duties or liabilities as
      set  forth herein are  altered, unless  the Depositary  shall have
      given its prior written consent thereto.

            (e)   Each of the Grantor and  RB (U.K.) agrees to indemnify
      and  hold  the  Depositary  harmless  against any  and  all  loss,
      damages,  costs  and  expenses,  including, but  not  limited  to,
      reasonable attorneys  fees, that may be incurred by the Depositary
      by  reason of its compliance in good  faith with the terms of this
      Agreement, except  those arising  out of  the gross  negligence or
      willful  misconduct of the  Depositary, it being  the intention of
      the Grantor and  RB (U.K.)  to indemnify the  Depositary from  the
      consequences of its negligence.

            (f)   Depositary shall exchange to United States dollars any
      funds which  are to be paid out of  the Collateral Accounts or the
      Dry Docking  Expense  Account  in  United  States  dollars, on the
      Transfer Date, at the four (4) Business Day forward rate in effect
      on the  date  of receipt of the  Instructions  by the  Depositary.
      Grantor  and Secured  Party  may  mutually  agree  to  amend  this
      Agreement and  replace  the  depository  if  the  exchange rate is
      unfavorable.

            SECTION  19.  Severability.   The invalidity  of any  one or  more
covenants, phrases, clauses, sentences  or paragraphs of this  Agreement shall
not affect the remaining portions of  this Agreement, or any part thereof, and
in case of any such  invalidity, this Agreement shall be construed  as if such
invalid  covenants, phrases,  clauses, sentences  or paragraphs  had  not been
inserted.

            SECTION 20.  Captions.   The captions in this  Agreement have been
inserted  for convenience only  and shall be  given no  substantive meaning or
significance  whatever  in  construing  the   terms  and  provisions  of  this
Agreement.  

            SECTION  21.  No Waiver; Cumulative  Remedies.  No  failure on the
part of the Secured  Party to exercise, and no delay  in exercising, any right
hereunder shall operate  as a waiver thereof; nor shall  any single or partial
exercise of any such right  preclude any other or further exercise  thereof or
the exercise of any other right.  The remedies herein  provided are cumulative
and not exclusive of any remedies provided by law.

            SECTION  22.  Execution in  Counterparts.   This Agreement  may be
executed  in any  number of counterparts  and by  different parties  hereto in
separate counterparts, each of which when so executed shall be deemed to be an
original and all  of which taken  together shall constitute  one and the  same
agreement.  

            SECTION  23.  GOVERNING  LAW;  SUBMISSION TO  JURISDICTION.   THIS
AGREEMENT,  INCLUDING  THE RIGHTS,  OBLIGATIONS  AND REMEDIES  OF  THE PARTIES
HEREUNDER, SHALL  BE GOVERNED BY AND  CONSTRUED IN ACCORDANCE WITH  THE LAW OF
THE  STATE OF NEW  YORK (WITHOUT REGARD  TO PRINCIPLES OF  CONFLICTS OF LAWS).
EACH  OF  THE  GRANTOR  AND  RB (U.K.)  HEREBY  SUBMITS  TO  THE  NONEXCLUSIVE
JURISDICTION OF THE UNITED STATES DISTRICT COURT FOR  THE SOUTHERN DISTRICT OF
NEW YORK  AND OF ANY NEW  YORK STATE COURT SITTING  IN NEW YORK,  NEW YORK FOR
PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT OF OR RELATING TO THIS AGREEMENT
OR THE  TRANSACTIONS CONTEMPLATED HEREBY.   EACH OF THE GRANTOR  AND RB (U.K.)
IRREVOCABLY  WAIVES, TO  THE FULLEST  EXTENT PERMITTED  BY LAW,  ANY OBJECTION
WHICH IT MAY  NOW OR HEREAFTER  HAVE TO THE  LAYING OF THE  VENUE OF ANY  SUCH
PROCEEDING BROUGHT  IN SUCH  A COURT  AND ANY CLAIM  THAT ANY  SUCH PROCEEDING
BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

            SECTION 24.  COMPLETE AGREEMENT.  THIS WRITTEN AGREEMENT, THE LOAN
AGREEMENT  AND THE  OTHER WRITTEN  AGREEMENTS ENTERED  INTO AMONG  THE PARTIES
REPRESENT THE FINAL AGREEMENT AMONG THE PARTIES AND MAY NOT BE CONTRADICTED BY
EVIDENCE  OF PRIOR,  CONTEMPORANEOUS,  OR SUBSEQUENT  ORAL  AGREEMENTS OF  THE
PARTIES.  THERE ARE NO ORAL AGREEMENTS AMONG THE PARTIES.

            SECTION 25.   WAIVER OF  JURY TRIAL.   EACH OF THE  PARTIES HERETO
HEREBY  IRREVOCABLY  AND UNCONDITIONALLY  WAIVES TRIAL  BY  JURY IN  ANY LEGAL
ACTION  OR PROCEEDING RELATING TO THIS  AGREEMENT OR FOR ANY COUNTERCLAIM WITH
RESPECT THERETO.

            IN  WITNESS WHEREOF, each of  the parties hereto  have caused this
Agreement  to  be  duly executed  by  its  respective  officer thereunto  duly
authorized as of the date first above written.

                                    TRB HOLDING CORPORATION

                                    By:                                       
                                    Name:                                     
                                    Title:                                    

                                    Address:

                                    901 Threadneedle, Suite 200
                                    Houston, Texas 77079
                                    Attention:  T. W. Nagle, Executive Vice 
                                        President, Finance and Administration
                                    Telecopy Number:  (281) 496-0285

                                    With copies to:

                                    Nissho Iwai Corporation
                                    4-5, Akasaka 2-chome
                                    Minato-ku, Tokyo 107, Japan
                                    Attention:     Manager,  Marine   Project
                                                   Section 2
                                                   Marine &  Offshore
                                                   Engineering Department

                                    Telecopy Number: 011-813-3588-4547

                                    SANWA BANK  TRUST COMPANY OF NEW  YORK, as
                                    Depositary

                                    By:                                       
                                                Hiromasa Ogisu
                                                Vice President

                                    Address:

                                    Sanwa Bank Trust Company of New York
                                    Financial Square
                                    32 Old Slip, 21st Floor
                                    New York, New York 10005
                                    Attention:  Corporate Trust Department

                                    Telecopy Number:  (212) 361-2135


                                    READING & BATES (U.K.) LIMITED

                                    By:                                       

                                    By:                                       
                                    Name:                                     
                                    Title:                                    

                                    Address:

                                    Reading & Bates (U.K.) Limited
                                    % 901 Threadneedle, Suite 200
                                    Houston, Texas 77079
                                    Attention:  T.W.   Nagle,  Executive  Vice
                                    President - Finance and Administration

                                    Telecopy Number: (281) 496-0285

                                    With copies to:

                                    Nissho Iwai Corporation
                                    4-5, Akasaka 2-chome
                                    Minato-ku, Tokyo 107, Japan
                                    Attention:     Manager, Marine Project
                                                   Section 2
                                                   Marine & Offshore
                                                   Engineering Department

                                    Telecopy Number: 011-813-3588-4547

                                    NISSHO IWAI EUROPE PLC

                                    By:                                       
                                          Kazunori Kimura
                                    Senior Vice President and Senior 
                                      General Manager of Houston office

                                    Address:

                                    London Office
                                    Bastion House
                                    140 London Wall
                                    London EC2Y 5JT
                                    England
                                    Attention:                                

                                    Telecopy Number:  011-4471-588-0391

                                    With a copy to:

                                    Nissho Iwai Corporation
                                    4-5, Akasaka 2-chome
                                    Minato-ku, Tokyo 107, Japan
                                    Attention:  Manager, Marine Project
                                                Section 2
                                                Marine & Offshore
                                                Engineering Department

                                    Telecopy Number: 011-813-3588-4547

                                    With a copy to:

                                    Baker & Botts, L.L.P.
                                    One Shell Plaza
                                    Houston, Texas  77002
                                    Attention:  Stephen Krebs

                                    Telecopy Number:  (713) 229-1522



                                                                 Exhibit _____

                                     FORM
                                      OF
                        COLLATERAL ACCOUNT INSTRUCTIONS


Sanwa Bank Trust Company of New York
Financial Square
32 Old Slip, 21st Floor
New York, New York 10005

Attention: Corporate Trust Department

Dear Ladies and Gentlemen:

            Reference is made to the Collateral Assignment of Deposit Account,
Pledge and Security Agreement  (the  Lockbox Agreement ) dated as  of December
12,  1996,  between  you  (the   Depositary ),  TRB  Holding  Corporation (the
Grantor),  Nissho  Iwai  Europe PLC (the  Secured Party ) and  Reading & Bates
(U.K.) Limited ( RB (U.K.) ).  Capitalized terms used herein and not otherwise
defined  herein have  the  meanings assigned  to  such  terms in  the  Lockbox
Agreement.

            The  Secured Party,  hereby  instructs you  to transfer  collected
funds in  the Collateral Accounts  on the fifteenth  (15th) day of  this month
(unless such day  is not  a Business Day,  in which case  such funds shall  be
transferred on the next succeeding Business Day) as follows:

            (i)   ____________  in the  that  certain deposit  account  number
      618727  in the  name  of  SBT-TRB  Holding  Corp. NIEP  Escrow  Account 
      maintained at the Depositary  (the  Sterling Collateral Account ) should
      be converted to U.S. Dollars and be transferred to  that certain deposit
      account  number 618727 in the name of  SBT-TRB Holding Corp. NIEP Escrow
      Account  maintained at the Depositary (the  Dollar Collateral Account );

            (ii)  transfer _____________ from the Dollar Collateral Account to
      the  Secured Party at its account number 15012511 at The Chase Manhattan
      Bank N.A.,  London Branch, Woolgate  House, Coleman Street,  London EC2P
      2HD, England;

            (iii) transfer _____________ from the Sterling  Collateral Account
      to RB (U.K.)  at its  account number 00750302, account  name  Reading  &
      Bates  (U.K.) Limited,  SWIFT number  RBOS GB  2L at  the Royal  Bank of
      Scotland,  Queens Cross Branch,  40 Albyn Place,  Aberdeen, Scotland AB1
      1YN; 

            (iv)  transfer _____________ from the Sterling  Collateral Account
      to  that  certain   deposit  account  number 619121   in  the  name   of
       SBT-TRB-NIEP-Dry Docking Expense Account   maintained at the Depositary
      in sterling pounds (the  Dry Docking Expense Account ); 

            (v)   transfer  ____________ from the Dollar Collateral Account to
      RB   FPSO  L.P.   at  its   account  number    _____________________  at
      ______________________________; 

            (vi)  transfer ______________ from  the Dollar Collateral  Account
      to  the Grantor  at  its account  number 00-132-716,  account name   TRB
      Holding Corporation , ABA number  0210 0103 3 at Bankers  Trust Company,
      130 Liberty Street, One Bankers Trust Plaza, New York, NY 10006; and 

            (vii) transfer ______________ from the Dry Docking Expense Account
      to  RB (U.K.) at its account number  00-132-716, account name  Reading &
      Bates  (U.K.) Limited , ABA number  0210 0103 at  Bankers Trust Company,
      130 Liberty Street, One Bankers Trust Plaza, New York, NY 10006.


                                          Very truly yours,

                                          NISSHO IWAI EUROPE PLC

                                          By:                           
                                          Name:                         
                                          Title:                              


cc:  

TRB Holding Corporation
Executive Vice President
901 Threadneedle, Suite 200
Houston, Texas 77079
Attention: ___________________



                                                                Exhibit 10.167


                           ASSIGNMENT OF INSURANCES

            This  ASSIGNMENT OF INSURANCES  (this  Assignment ) is  made as of
December 14,  1996,  by TRB  HOLDING  CORPORATION,  a  Delaware    corporation
( TRBH ) and  READING &  BATES (U.K.) LIMITED  ( RB (U.K.)  and  together with
TRBH,  Assignor ) in favor of  NISSHO IWAI EUROPE PLC, an  English corporation
( Lender ).

                                   RECITALS:

1.    TRBH  is the sole  owner of the  whole of  that certain vessel  known as
       Seillean  of  50,928  gross registered  tons,  Call Letters  3FPF6  and
      Registration  No. 25519-PEXT, and with the home port of Panama City, the
      Republic of Panama (the  Vessel ).

2.    Assignor  and  Lender  entered  into  the  Loan  Agreement  (the    Loan
      Agreement )  dated as of December 14, 1996 whereby Lender agreed to lend
      Assignor certain  sums to be  secured by  the Vessel and  all rights  of
      Assignor with respect  thereto.   Unless otherwise  defined herein,  all
      capitalized terms used herein  have the meanings assigned to  such terms
      in the Loan Agreement.

3.    TRBH executed and delivered  to Lender its Promissory Note  (the  Note )
      dated  December 14,  1996,  in  the original  principal  amount  of U.S.
      $38,000,000  payable with  interest to  the order  of Lender  in monthly
      installments commencing on February 15, 1997.

4.    TRBH has executed  and delivered to the Lender the  First Preferred Ship
      Mortgage   (the   Mortgage )  of  even  date   herewith  to  secure  its
      obligations  under the  Loan  Agreement  and  the  Note  and  the  other
      documents  executed  in  connection   therewith.    This  Assignment  is
      supplemental to the Mortgage.

5.    Assignor has executed and delivered to the Lender the Charter Assignment
      to secure its obligations under the  Loan Agreement and the Note and the
      other documents executed in connection  therewith this Assignment to the
      Charter Assignment.

6.    Lender,  in order  to  further secure  payment  and performance  of  the
      principal  amount of the Note, plus interest thereon and all obligations
      relating thereto  as Assignor may  be obligated to pay  or perform under
      the  covenants, terms, and conditions  in the Note,  the Loan Agreement,
      the Mortgage,  the Charter  Assignment,  this Assignment  and the  other
      documents  executed  in  connection  therewith  (the   Loan  Documents )
      (collectively, the  Obligations ), has duly authorized the execution and
      delivery of this Assignment. 

            NOW,  THEREFORE, in  consideration  of the  premises, the  parties
hereto hereby agree as follows:

            1.    The  Assignor, as  beneficial owner,  hereby assigns  to the
Lender all of the Assignor s right, title and interest in and  to all policies
and  contracts of  insurance  (including  all  entries  in  a  protection  and
indemnity or  war risks association) which  are from time to  time covering or
taken out in respect  of the Vessel, its operations,  freights, disbursements,
profits or  otherwise and all  the benefits  thereof including all  claims and
return of premiums  and the  proceeds thereof  (all of  which are  hereinafter
called the  Insurances ).

            2.    Anything contained herein  to the contrary  notwithstanding,
the Assignor shall remain  liable for all obligations  in connection with  the
Insurances (including,  without limitation,  the payment of  all premiums  and
calls with  respect  thereto) and  the  Lender  shall have  no  obligation  or
liability whatsoever  with respect to the Insurances  by reason of, or arising
out of, this Assignment and shall not be required to present or file any claim
or  take  any other  action  of  any kind  at  any time  with  respect  to the
Insurances.

            3.    The Assignor agrees  that it will  forthwith give, or  cause
its broker to give, notice, in the form attached hereto, of this Assignment to
all insurers,  underwriters,  clubs  and  associations  with  respect  to  the
Insurances.  The Assignor  shall cause each of the Insurances  to carry a loss
payable clause endorsement  substantially in  the form of  Exhibit A  attached
hereto.

            4.    The  Assignor   does  hereby  constitute  the   Lender,  its
successors and assigns, the Assignor s  true and lawful attorney, irrevocably,
with full  power (in the name of  the Assignor or otherwise)  to ask, require,
demand,  receive,  compound and  give acquittance  for any  and all  monies or
claims for  monies due and  to become  due in connection  with Insurances,  to
settle or  compromise any  claim thereunder, to  endorse any  checks or  other
instruments or orders  in connection therewith and to file  any claims or take
any action or institute any proceedings which to the Lender may seem necessary
or advisable.  The Assignor further agrees  that at any time and from time  to
time, upon the  written request of the Lender, the  Assignor will promptly and
duly execute and deliver any and all such further instruments and documents as
the Lender  may reasonably  request in  obtaining  the full  benefits of  this
Assignment  and  the rights  and  powers  herein granted  or  purported to  be
granted.

            5.    The  Assignor  covenants  and   warrants  that  it  has  not
assigned, charged or pledged, and that it will not hereafter without the prior
written consent of the Lender, assign, charge or  pledge the whole or any part
of the Insurances to anyone other than the Lender. Notwithstanding anything to
the contrary contained in any  other Loan Document, in the event of a conflict
between  this Agreement  and  any  other  document  concerning  the  grant  or
enforcement of any lien or security interest in the Insurances, the provisions
of this Agreement shall control.

            6.    Upon payment to  the Lender of all monies  due and to become
due to the  Lender under the Note, the Loan Agreement and the Mortgage and any
other obligations secured  hereby and  when the Assignor  is under no  further
actual or  contingent liability  in respect  thereof, the  Lender will  at the
request and cost of the Assignor reassign the Insurances to the Assignor or as
it shall direct, without any representation, warranty or recourse by or to the
Lender.

            7.    The  Lender is hereby  authorized, but not  required, in its
own  name  and  the Assignor s  name,  to  demand,  collect,  receipt for  and
prosecute all necessary actions in the courts to recover any and all insurance
monies which may become due and payable under any insurance.

            8.    If the Assignor  shall at any time fail to  pay, or cause to
be paid, when due any  insurance premiums or to obtain any  required insurance
or to  deliver to  the  Lender in  accordance with  this  Assignment and  Loan
Agreement above  all policies,  certificates, contracts of  insurance, binders
and cover  notes  and  all renewals  thereof  as required  by  the  provisions
thereof, the Lender may, but shall not be required to,  procure such insurance
and pay unpaid premiums and the cost and expense thereof (with interest at the
rate provided in the  Loan Agreement) shall be an additional  indebtedness due
from the Assignor to the Lender and shall be paid by the Assignor on demand.

            9.    This  Assignment  shall  be  governed by  and  construed  in
accordance with the laws of New York.


            IN  WITNESS  WHEREOF,  the   parties  hereto  have  executed  this
Assignment as of the day and year first above written.


                              ASSIGNOR:

                              TRB HOLDING CORPORATION


                              By                                              
                              Name                                            
                              Title                                           

                              READING & BATES (U.K.) LIMITED 


                              By                                              
                              Name                                            
                                    Director


                              By                                              
                              Name                                            
                                    Director


                              ASSIGNEE:

                              NISSHO IWAI EUROPE PLC


                              By                                              
                              Name                                            
                              Title                                           




                              Notice of Assignment


Each of  TRB HOLDING CORPORATION, a  Delaware  corporation (the   Owner ), the
owner of that  certain vessel known as   Seillean  of 50,928 gross  registered
tons,  Call Letters 3FPF6 and  Registration No. 25519-PEXT, and  with the home
port of  Panama City, the  Republic of  Panama (the  Vessel ),  and READING  &
BATES (U.K.) LIMITED,  the charterer  of the Vessel  (the  Charterer )  HEREBY
GIVES NOTICE that  by an Assignment dated as of  December 14, 1996 in favor of
NISSHO IWAI  EUROPE PLC, an English  corporation (the  Lender ) the  Owner and
the  Charterer assigned to the Lender all  of their, right, title and interest
in  and  to all insurances and the benefit of  all insurances now or hereafter
taken out in  respect of the  Vessel.  This  Notice is to  be endorsed on  all
policies and certificates of entry evidencing such insurances.


                              TRB HOLDING CORPORATION


                              By                                              
                              Name                                            
                              Title                                           


                              READING & BATES (U.K.) LIMITED 


                              By                                              
                              Name                                            
                                    Director

Acknowledged:


                                   EXHIBIT A

                 Form of Loss Payable Clause and Endorsements

            TRB Holding  Corporation and Reading  & Bates (U.K.)  Limited have
assigned to Nissho Iwai Europe Plc (the  Lender ) this policy and all benefits
thereof.
                        Until the Lender notifies the insurer to the contrary:

                  all claims  hereunder in respect of a  total or constructive
            total  loss of the vessel  Seillean  (the  Vessel ) or an arranged
            or agreed or compromised total loss of the Vessel shall be paid to
            the  Lender up to its  mortgage interest without  any deduction or
            deductions whatsoever;

                  any other claim  exceeding $500,000 in respect of the Vessel
            shall be paid  to account no. 15012511  opened in the name  of the
            Lender with The Chase Manhattan Bank, London,  England, subject to
            the prior written consent of the Lender; and

                  any other  claim not  exceeding $500,000  in respect  of the
            Vessel shall be paid to account  no. _______________ opened in the
            name           of          ________________________           with
            ______________________________ (ABA #_____________________).

            The Lender shall be advised:

                  immediately of any material changes which are proposed to be
            made in the terms of the insurances or if the insurers cease to be
            insurers for any purposes connected with the insurance;

                  not later than thirty days prior to the expiry of any of the
            insurances  if instructions have not been received for the renewal
            or further renewal thereof and, in the event of instructions being
            received to renew or further to renew, of the details thereof;

                  immediately of  any instructions or notices  received by any
            insurer  with regard to the  cancellation or invalidity  of any of
            the insurances aforesaid.

                  The Insurances shall contain  breach of warranty  protection
            to  the NIC  Parties  and  waiver  of  subrogation  clause.    The
            Insurances shall be primary without right of contribution from any
            other insurance that may be carried by the NIC Parties and contain
            a  waiver of  set  off of  premiums  against claims  proceeds  and
            provide no recourse for premium payments by the NIC Parties.



                                                               EXHIBIT 11


                           READING & BATES CORPORATION
                                 AND SUBSIDIARIES

          COMPUTATION OF NET INCOME (LOSS) PER COMMON SHARE, PRIMARY AND
                                  FULLY DILUTED
                (in thousands except share and per share amounts)

                                                Years ended December 31, 
                                        --------------------------------------
                                           1996          1995          1994
                                        ----------    ----------    ----------
PRIMARY NET INCOME (LOSS) PER SHARE:

Weighted average number of common
  shares outstanding                    64,620,205    60,207,934    56,899,715
                                        ==========    ==========    ==========
Income (loss) before extraordinary
  gain                                  $   77,916    $   18,392    $  (17,146)
Adjustments:
   Less dividends paid on $1.625
    Convertible Preferred Stock             (3,631)       (4,855)       (4,859)
                                        ----------    ----------    ----------
Adjusted income (loss) before
  extraordinary gain                        74,285        13,537       (22,005)
 Extraordinary gain                              -         3,430             -
                                        ----------    ----------    ----------
Adjusted net income (loss) applicable
  to common shares outstanding          $   74,285    $   16,967    $  (22,005)
                                        ==========    ==========    ==========
Income (loss) per common share:
 Adjusted income (loss)
   before extraordinary gain            $     1.15    $      .22    $     (.39)
 Extraordinary gain                              -           .06             -
                                        ----------    ----------    ----------

Net income (loss) per common share      $     1.15    $      .28    $     (.39)
                                        ==========    ==========    ==========


                                                Years ended December 31,
                                        --------------------------------------
                                           1996          1995          1994
                                        ----------    ----------    ----------
FULLY DILUTED NET INCOME PER SHARE:

Weighted average number of common
  shares outstanding                    64,620,205             -             -

Assume conversion of (at the beginning
 of the period):
  $1.625 Convertible Preferred Stock     6,406,769             -             -
                                        ----------    ----------    ----------
Adjusted common shares outstanding -
  fully diluted                         71,026,974             -             -
                                        ==========    ==========    ==========
Adjusted net income applicable to
  common shares outstanding             $   74,285    $        -    $        -
Adjustments:
  Dividends paid on $1.625
   Convertible Preferred Stock               3,631             -             -
                                        ----------    ----------    ----------
Adjusted net income applicable to
  common shares outstanding -
  assuming full dilution                $   77,916    $        -    $        -
                                        ==========    ==========    ==========
Fully diluted net income per common
  share (considering only dilutive
  convertible securities)               $     1.10    $        -    $        -
                                        ==========    ==========    ==========


                          READING & BATES CORPORATION
                                AND SUBSIDIARIES

 COMPUTATION OF NET INCOME (LOSS) PER COMMON SHARE, PRIMARY AND FULLY DILUTED
               (in thousands except share and per share amounts)

                                              Years ended December 31,  
                                        --------------------------------------
                                           1996          1995          1994
                                        ----------    ----------    ----------
FULLY DILUTED NET INCOME PER SHARE:*

Weighted average number of common
  shares outstanding                    64,620,205    60,207,934    56,899,715

Assume exercise of outstanding stock
  options (based on the treasury
  stock method)                          1,225,584       401,390             -

Assume conversion of (at the beginning
 of the period):
  $1.625 Convertible Preferred Stock     6,406,769     8,663,125     8,668,010
  8% Senior Subordinated Convertible
     Debentures                            823,631       783,686       743,497
  8% Convertible Subordinated
     Debentures                                  -        16,661        16,661
                                        ----------    ----------    ----------
Adjusted common shares outstanding -
  fully diluted                         73,076,189    70,072,796    66,327,883
                                        ==========    ==========    ==========
Adjusted net income (loss) applicable
  to common shares outstanding          $   74,285    $   16,967    $  (22,005)
Adjustments:
  Interest on 8% Senior Subordinated
   Convertible Debentures                    3,696         3,173         2,731
  Interest on 8% Convertible
   Subordinated Debentures                       -         2,068         2,109
  Dividends paid on $1.625 Convertible
  Preferred Stock                            3,631         4,855         4,859
                                        ----------    ----------    ----------
Adjusted net income (loss) applicable
  to common shares outstanding -
  assuming full dilution                $   81,612    $   27,063    $  (12,306)
                                        ==========    ==========    ==========
Net income (loss) per common share -
  assuming full dilution
  (antidilutive)                        $     1.12    $      .39    $     (.19)
                                        ==========    ==========    ==========

*This calculation considers all convertible securities and is submitted in
 accordance with Regulation S-K item 601(b)(11) although it is contrary to
 paragraph 40 of APB Opinion No. 15. 


                                                                   EXHIBIT 21


                          READING & BATES CORPORATION
                                AND SUBSIDIARIES
              SCHEDULE OF CONSOLIDATED SUBSIDIARIES OF THE COMPANY
                            AS OF DECEMBER 31, 1996


         The following  table and  text sets  forth the  subsidiaries of  the
   Company and of such subsidiaries:  

                                                        State or
                                                     Jurisdiction of
                      Name                            Incorporation 
                      ----                           ---------------

SUBSIDIARIES WHOLLY OWNED BY READING & BATES CORPORATION

         Reading & Bates Coal Co.                          Nevada
         Reading & Bates Development Co.                   Delaware
         Reading & Bates Drilling Co.                      Oklahoma
         Reading & Bates Petroleum Co.                     Texas
         Reading & Bates Management
          Services, Inc.                                   Delaware
         TRB Holding Corporation                           Delaware

SUBSIDIARIES WHOLLY OWNED BY READING & BATES DRILLING CO.

         RB Drilling Services, Inc.                        Oklahoma
         Reading & Bates (U.K.) Limited                    United Kingdom
         Onshore Services, Inc.                            Texas
         RB Offshore, Inc.                                 Nevada
         HRB Rig Corporation                               Oklahoma
         Reading and Bates Borneo
          Drilling Co., Ltd.                               Oklahoma
         Cyber Quality Inc.                                Oklahoma
         Reading & Bates Drilling Limited                  Oklahoma
         Reading & Bates Enterprises Co.                   Texas
         Reading & Bates Exploration Co.                   Oklahoma
         Reading and Bates, Inc.                           Oklahoma
         Reading & Bates International
          Energy Services B.V.                             Netherlands
         Reading & Bates Offshore, Limited                 Oklahoma
         Rig Logistics, Inc.                               Nevada
         Reading & Bates (Ireland) Limited                 Ireland
         RB Deepwater Exploration Inc.                     Nevada

SUBSIDIARY WHOLLY OWNED BY READING & BATES DEVELOPMENT CO.

         RB Drilling Co.                                   Oklahoma

SUBSIDIARY WHOLLY OWNED BY READING & BATES ENTERPRISES CO.

         Shore Services, Inc.                              Texas

SUBSIDIARY WHOLLY OWNED BY READING & BATES EXPLORATION CO.

         Reading & Bates (A) Pty Ltd                       Australia

SUBSIDIARY WHOLLY OWNED BY READING & BATES INTERNATIONAL ENERGY  SERVICES B.V.

         Reading & Bates B.V.                              Netherlands

SUBSIDIARIES WHOLLY OWNED BY READING & BATES COAL CO.

         Appalachian Permit Co.                            Kentucky
         Bismarck Coal Inc.                                Kentucky
         Caymen Coal Inc.                                  West Virginia

SUBSIDIARY WHOLLY OWNED BY BISMARCK COAL INC.

         Certicoals, Incorporated                          West Virginia

SUBSIDIARY WHOLLY OWNED BY READING & BATES (U.K.) LIMITED

         Reading & Bates (Caledonia) Limited               United Kingdom

SUBSIDIARY WHOLLY OWNED BY TRB HOLDING CORPORATION

         TRB Subsidiary Corporation                        Delaware


         RB Deepwater Exploration Inc. owns  50% of Deepwater Drilling L.L.C.,
a limited liability company organized under the laws of the State of Delaware.

         Reading  &  Bates  Corporation  owns  approximately  74.4% of  Arcade
Drilling AS, incorporated in Norway. 

         Reading & Bates Development Co. owns 75% of Total Offshore Production
Systems, a joint venture organized under the laws  of the State of Texas.

         Reading and Bates Borneo Drilling Co., Ltd. owns 49.99% of Reading  &
Bates (M) Sdn. Berhad, incorporated in Malaysia.

         RB Drilling Services, Inc. owns 60% of NRB Drilling Services Limited,
incorporated in Nigeria.

         Reading  &  Bates  Drilling  Co. and Reading & Bates  Enterprises Co.
together own 100% of Reading & Bates-Demaga Perfuracoes Ltda., a civil society
with shares  of  limited  responsibility  organized  under  the  laws  of  the
Federative Republic of Brazil.

         All of the above companies are included in the consolidated financial
statements.   


 
                                                                   EXHIBIT 23



                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


   As independent public accountants, we hereby consent to the  incorporation
   of  our  report  dated January  27,  1997, on  the  consolidated financial
   statements of Reading & Bates Corporation and subsidiaries as  of December
   31, 1996 and  1995, and for the  years ended December  31, 1996, 1995  and
   1994 included  in  this Form 10-K,  into  the Company's  previously  filed
   Registration Statements (file no.s 33-44237,  33-50828, 33-50565, 33-56029
   and 33-62727).




   Arthur Andersen LLP

   Houston, Texas
   March 17, 1997 


<TABLE> <S> <C>


<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
financial  statements of Reading & Bates Corporation for the year ended
December 31, 1996 and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                          59,089
<SECURITIES>                                         0
<RECEIVABLES>                                   65,620
<ALLOWANCES>                                     1,891
<INVENTORY>                                     13,369
<CURRENT-ASSETS>                               140,090
<PP&E>                                         954,249
<DEPRECIATION>                                 296,620
<TOTAL-ASSETS>                                 808,190
<CURRENT-LIABILITIES>                           55,132
<BONDS>                                              0
                                0
                                          0
<COMMON>                                         3,594
<OTHER-SE>                                     443,013
<TOTAL-LIABILITY-AND-EQUITY>                   808,190
<SALES>                                              0
<TOTAL-REVENUES>                               290,223
<CGS>                                                0
<TOTAL-COSTS>                                  126,708
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